GB 15210-2003 General technical specification for walk-through metal detection doors
Some standard content:
All technical contents of this standard are mandatory.
GB15210—2003
This standard is a revised version of GB152101954 Technical Conditions for Use of Metal Detectors. Compared with the original standard, the changes in content are mainly as follows:
The name of the standard is Technical Specifications for Metal Detectors; "--Terms and definitions have been adjusted and supplemented: Technical requirements have been greatly adjusted and refined. The safety of use and the simulation of basic function tests have been emphasized. A chapter on random technical documents has been added:
This standard will be implemented from the same month as GB152:9:984. Appendix A, Appendix R and Appendix C of this standard are all informative. This standard contains the following contents: The Ministry of Public Security proposed this standard. This standard is under the jurisdiction of the National Security Alarm System Standardization Technical Committee (SAC/C100). This standard was drafted by the Ministry of Public Security's No. 1 Carbon Research Institute. The main drafters of this standard were Hong Liangrui and Zhang Ning. This standard was first issued in September 1994 and revised for the first time in October 2003. 1 Specification
General Technical Specification for Walk-through Metal Detector Doors G15210-2003
This standard specifies the technical requirements, test methods, inspection rules, and marking and packaging requirements for walk-through metal detector doors. This standard is applicable to walk-through metal detector doors used to detect metal weapons and contraband. Other uses of walk-through metal detector doors can refer to this standard.
2 Normative references
The clauses in the following documents become clauses of this standard through reference in this standard. For any dated reference, all subsequent amendments (excluding errata) or revisions are not applicable to this standard: however, parties to an agreement based on this standard are encouraged to investigate whether to use the latest versions of these documents. For any undated reference, the latest version shall apply to this standard. GH/T2123.1 Environmental testing for electric and electronic products Part 2: Test methods Test A: Low temperature ((iB3/T2423.1-2001.idt 1EC: 60068-2-1:1990) GB/T2423.2 Environmental testing for electric and electronic products, Part 2: Test methods Test 13: High temperature (G13/T2423.2—2001,idt IEC 60068 2 2:1974) GB/T 2423.3 Basic environmental test specifications for electric and electronic products Part A: Steady state damp heat test method GBT2482.3-1993.eqv lEC: 60068 2 3:1984) GB/T 2423.5 Environmental testing for electric and electronic products Part 2: Test method Test Ea Guidance: Shock (13/1
2423.51995,icll1E0:60068-2-271987) GB/T 2423.10 Environmental testing for electric and electronic products Part 2: Test method Test F: and guidance: Vibration (sinusoidal) (GB/T2423.101995.idt 1E608.2 6:1982)(GB4793.11995 Safety requirements for electrical equipment for use in measurement control and laboratories Part 1: General requirements (iclt1EC61019-1:1990)
CB65316 Test rules for frequency measurement of electronic measuring instruments CB/117626.21998 Electromagnetic compatibility test and measurement technology Electromagnetic discharge immunity test (idtF61:99-1-2:1995)(GJ3/T17626.3-1998 Electromagnetic compatibility test and measurement technology Radio frequency Magnetic field immunity test (IDT161000-4-3:1995)
GB/117626.5:1999 Electromagnetic field test and measurement technology (IDT161000-4-5:1995) 3 Terms and definitions
The following terms and definitions apply to this standard.
Walk-through metal detector door A metal detection device, generally in the shape of a door handle erected on the ground. When a person walks through it, the device can detect whether the person is carrying a metal exceeding a specified amount. (In this standard, it is referred to as a "detection door"). 3.2
Detection area Detector region
The spatial range within the pedestrian passage of the detection door. 3.3
Detection plane detectorplane
GB 15210--2003
In the detection area…a virtual plane which is perpendicular to the direction of pedestrian passage, as shown in the figure! If a rectangular three-dimensional coordinate system is established in the center of the measuring area, the Y axis and the detection plane X and Y axis are included in the detection plane. In this specification, the behavior of passing through the detection area in a direction parallel to the Y axis is referred to as "passing through". Figure 1 Detection area and detection plane
Alarm pasitive alarm
When a metal object exceeding the limit passes through, the detection door uses the specified display and/or includes to send out an alarm signal. 3.5
Full alarm missinpalaru
When the metal object that should be alarmed passes through, the detection door does not alarm. 3.6
False alarm full alarm
When the metal object that has not been detected or should be alarmed passes through, the detection door mistakenly alarms. 3.7
Test object testobject
Special metal objects used to test the performance of the test door are divided into large, small, and small alarm test objects and non-alarm test objects. 3.8
Detection level defect in lasers
Used to describe the detection capability of the door metal object, this standard divides it into A, B, and C. 3.9
Standard test person stadarf lester
Height 1.55m~1.85m, weight 50kg-100k, personal data - any metal or conductive object, and no metal in the body. 3.10
Detection position dfetector positian
Some detection points selected on the detection plane. 4 Technical requirements
4.1 Appearance
The following phenomena should not be mixed: cracks, blister corrosion, obvious scratches or permanent stains. 4.2 Mechanical structure and layout
4.2.1 Door structure
Should be easy to assemble, transport and repair. The mass of the whole machine should not exceed 100kg4.2.2 Pedestrian passageway
a) There should be enough passage space and reasonable ground area: height (X-axis direction) should not be less than 1980mm; width (X-axis direction) should not be less than 710mm; depth (Y-axis direction) should not be longer than 910 mm
b) It should be convenient for people to walk through without obstacles. The following phenomena should not appear:-- sharp corners and edges that may hook clothes or scratch skin;-- protrusions with a height of more than 5mm or a head curvature radius of less than 2mm;-- exposed wires or hanging objects.
() If there is a footrest on the bottom surface, it should be flat and solid, and the following phenomena should not appear:-- clearance of more than 1! mm;
-- obvious collapse or distortion when standing on it;-- obvious tilting or displacement of the line.
4.2.3 Structural stability
a) Mechanical connections or components should not loosen, move or fall off. CB15210—2003
) The structure should be stable. When a force of 15)N is applied to the lower part of the door body in the direction of travel (X-axis direction), the door body should not move: When a moment of 500N·m is applied to the top of the door body in the horizontal direction (X-axis and Y-axis direction), the door body should not be unbalanced. If the detection door has a control cabinet independent of the door body, its installation position should be 0.8n away from the pedestrian flow, and the sliding force and unbalance moment should not be less than 1/5 of the requirements for the door body.
1) For doors with light structures, the necessary fixing measures or reinforcement accessories should be listed in the product technical specifications to meet the above requirements. 4.2.4 Layout
a) A main power switch should be installed to cut off and connect all power supplies, but the location should not be in a place that can be easily touched. h) The operation panel should be located on the side of the door or on the outside. c) A display indicating whether passage is allowed should be placed on the side where people enter the passage. d) An alarm information indicator should be placed on the side where people leave the passage. 4.3 Operation Control
4.3.1 Operation Authorization
Except for the control devices and working parameters necessary for operating the door, other devices and parameters that affect the detection performance should be protected to prevent unauthorized personnel from making changes. 4.3.2 Buttons and Control Devices
Buttons and control devices should be flexible to operate, have a clear feel, and be reliable in function. If equipped with a remote control, the control distance should be at least 2m. 4.3.3 Remote control
If centralized control is allowed through a remote computer or network, the corresponding control program should be provided. When the remote control is interrupted by a fault, the detection door should be able to automatically restore local control. 4.4 Marking
The rated power supply voltage of the power supply should be marked near the power supply terminal, or the model and connection polarity of the battery used. 3
GB1521Q—2003
The on and off of the switch, the function of the button, the various on-site connected relays and the installation of the optional parts should be clearly marked. c If there is a replaceable fuse, its size and rated value should be marked near the fuse. ) The symbol or mark represented by a graphic should comply with the requirements of Table 1 of G4703.11995. ) Those that need to be expressed in words should be marked in Chinese. In normal use and! 4.5 Power supply application scope: When using AC power supply, the device should be able to operate normally without adjustment within the power supply range of 182~242V, 47.5IF, 52.5Hz. 4.6 Electrical safety: 4.6.1 Grounding: When using AC power supply, there should be a reliable protective grounding terminal. The impedance between the protective grounding terminal and all metal parts of the protective grounding terminal should not be greater than 0.10. If the protective grounding terminal is connected through an additional lead, the total grounding resistance of all connectors in the conductive path of the additional lead should not be greater than 4?
4.6.2 Insulation resistance
When AC power is used, the insulation resistance between all accessible parts and the power supply terminals shall not be less than 100M under normal conditions. It shall not be less than 22°C under hot conditions. 4.6.3 Leakage current
The leakage current between accessible parts and between two accessible parts shall not exceed 0.5A for sinusoidal waves. Non-sinusoidal values shall not exceed ?mA peak or 2mA DC. 4.6.4 Dielectric strength
The grounding and power supply terminals should be able to withstand at least the voltage specified in Table D1 of B4793.1-1995 (350V AC effective value or 1c0.1min), and no breakdown or repeated arcing should occur. 4.6.5 Electrical spacing and distance
5 When the current is changed, the circuit connected inversely to the power supply shall adopt the 3V standard spacing in Table 4 of GB1.15 as the basis for formulating product technical specifications and manufacturing products. 4.6.6 The magnetic induction intensity in the detection area is limited to the area formed by 15m on the left and right sides of the detection area. The magnetic induction intensity at any point shall not exceed 304.7 Detection performance
4.7.1 Detection sensitivity range
It can be easily adjusted from low to high and cover at least one detection level. 4.7.2 Detection uniformity
For each detection level that can be met by the product technical specification, the company should have a set of recommended standard parameters or quick-set programs. The setting parameters are maintained and tested for each detection level. The detection requirements in the table should be met, and no full alarm or false alarm should occur. Table of different detection levels Detection requirements
Light test level
Detection application:
Applied alarm test
Main object
Detection range
MI, LF-G
MI,-.[.s?
No flow alarm test
Main object
Method 1. For the number and size of the test object, please refer to Appendix 8. For the detection effect and code, please refer to Appendix 8. For the definition of the test object posture, please refer to Appendix 8. Posture ||tt ||Note 2: This data is only for the difference between the two methods. It does not specify the specific conditions for the operation in the single zone or the guard zone. It is recommended to use the test plan more accurately, more thoroughly and efficiently. 4.7.3 Passing speed
GB15210-2003
The passing speed range specified in the product technical specification should not be less than 0.4/~1.8/. When a person passes through the passing speed range, The detector should be able to meet the requirements of 4.7.2. 4.7.4 Continuous working time
The continuous working time stated in the product technical specification shall not be less than 8 hours. The detector should work stably within the specified continuous working time and meet the requirements of 7.2.
4.7.5 Counting function
The detector should have a counting and statistical function and can reliably record the number of effective users and the number of people who have issued an alarm: 4.8 Alarm indication
4. 8.1 The alarm tone should be different from the alarm tone, and the tone can be adjusted so that the alarms of two adjacent detectors can be clearly distinguished. The intensity can be adjusted from low to high, and the maximum intensity should not exceed 54. 8.2 The alarm display and non-alarm display should be red. 5) If there is a partition detection function, the partition difference should be clear and the location should be correct. In a bright environment of 600[x and a dark environment of 251x, when the object is 3m away from the alarm display, it can be clearly seen. 4.8.3 Alarm status recovery
The detection door has the ability to automatically recover from the alarm status. Under the automatic recovery condition, the alarm display should not last for more than 1.2s after the alarm test object is properly operated.
4.9 Environmental adaptability
4.9.1 Working environment
The indoor working environment can at least work under the environmental conditions of lower limit of temperature +5°C, upper limit of humidity +40°C, and maximum relative humidity of 5%, and can meet the requirements of 1.7 and 2
Outdoor working environment: The indoor working environment can at least work under the environmental conditions of lower limit of temperature -2°C, upper limit of humidity →, and maximum relative humidity of 5%, and can meet the requirements of 7 and 2.
4.9.2 Storage environment
It can be stored in the environment with the lower limit of temperature - 20℃ and the upper limit of temperature + 53 and the maximum humidity of 95% at least, so as not to cause the mechanical and electrical performance of the detection door to be damaged.
4.9.3 Mechanical stress
When not in working state, the detector should withstand the problems and impacts during normal installation, use, moving and transportation. The performance of the detector should not be affected.
4.10 Electromagnetic compatibility
4.10.1 Electrostatic discharge terminal
The parts that can be affected during normal operation should be able to work normally if they are disturbed by electrostatic discharge. 4.10.2 Radio frequency electromagnetic field radiation interference
The detector can work normally in the environment of radio frequency electromagnetic field radiation of certain field strength. 4.10.3 Surge (impact) voltage interference
When the supply port is subjected to external surge (shock) voltage disturbance, the performance of the detector will be temporarily reduced and can resume normal operation.
4.11 Mutual Interference Resistance
The detectors placed side by side at the minimum spacing specified in the technical specifications of the product shall all work normally and meet the requirements of 1.7.2. When the temperature is at level D or low F detection level 1, the minimum spacing specified for each side shall not exceed 3m5
GB 15210—2003
4.12 Interference Resistance to Stationary Metal Objects
4.12.1 Interference of Stationary Metal Objects Around
Stationary metal objects outside the specified range around the door body shall not have any impact on the detection performance. The specified range shall not be greater than 1 m.
4.12.2 Influence of Metal Structures Inside the Ground
Metal structures below 100mm above the ground shall not have a significant impact on the detection performance. 4.13 Interference Resistance to Moving Metal Objects Around
Moving metal objects outside the specified range around the door body shall not cause the detection door to produce false alarms. The specified range is not greater than 1.5m. 5 Test methods
5.1 Test environment and default settings
5.1.1 Except for the tests under special acoustic environment conditions, the rest of the tests shall be carried out under the following environmental conditions: a
Temperature: 15℃~-35
Relative intensity: 25%~75%
Air length P~1kP
Moving metal object: m away from any part of the door body. Stationary metal object: 1.5m away from any part of the door body, e
No strong electromagnetic field interference,
Except for the tests with special working parameters, the rest of the tests shall be carried out under the following conditions: 5.1.2
Sensitivity: Set the sensitivity level so that the detection door is at the most sensitive detection level. Passing speed: If there is a passing speed number selection, it should be changed to the parameter covering the speed of 1m/s. h)
Alarm recovery: If there is an alarm recovery mode option, it should be set to the door recovery mode. Photoelectric proximity switch: If there is a photoelectric proximity switch with a false alarm prevention function, it should be disabled. d)
Other parameters: Set according to the relevant instructions of the detection door. e
5.2 Appearance inspection
Day visual inspection of the appearance should meet the requirements of 4, 1. 5.3 Mechanical structure test
5.3.1 Assemble, disassemble and weigh the door body according to the instructions of the detection door. It should meet the requirements of 4.2.1: 5.3.2 Visually inspect the pedestrian passage. It should meet the requirements of 4.2.2. In the rough parts of the structure, use cotton balls or mesh cloth to rub repeatedly to ensure that the clothes will not be caught in the parts. 5.3.3 Select a flat and solid site to place the detection door, and refer to Figure 2 to test the structural stability in the following way: Lift the door and observe whether it lands smoothly and whether the mechanical connections and components are firm: a)
b) Apply a 50N torque on each of the four sides of the top of the door (the opposite side of F1 and FI, the left side of F2 and F2). Any side should meet the requirements of 4.2.3;
At a height of 0.8m from the bottom (F3 and F3), apply a force of 75N on both sides along the direction of travel, which should meet the requirements of:
1.2.3
d) For control analysis independent of the door body, refer to the above method for testing. This test should be carried out after the machine city stress test in 5.10.3. 5.3.4 Visual inspection layout. It should meet the requirements of 4.2.4: 5.4 Operation control test
Figure 2 Structural stability test
Visual inspection and follow the product technical specifications and instructions 1. Operation. Reduce the requirements of 1.3. 5.5 Logo inspection
5.5.11 Visually check whether various logos are in compliance with the requirements of 1.-1: GB15210-2003
5.5.2 Durability test: First use a soft cloth to dip in the decontamination agent specified by the detection door (dip in water if there is no specification) and gently wipe the logo for 15s. Then dip in isopropyl alcohol and gently wipe for 15s. After wiping, the logo should still be clearly identifiable, and the label attached to the station should not be loose or curled. 5.6 Power supply application scope test
For AC powered detection doors, the following method should be used for testing. Detection doors with other power supply modes can refer to this method for testing. Set the adjustable power supply output frequency to 5H (.5Hz) and the voltage to the lower and upper limits of the power supply frequency required by the product technical specifications. Each should be maintained for at least 15 seconds. Then perform the performance test. All should meet the requirements of 4 and 7.2. Set the adjustable impedance source output voltage to 220V and 5V. Set the power supply frequency to the lower and upper limits of the power supply frequency required by the product technical specifications. Each should be maintained for at least 15 seconds. Then perform the performance test. All should meet the requirements of 1 and 2. 7.2 requirements. It is recommended that this test be carried out under the environmental conditions of the upper and lower limits of the operating temperature. 5.7 Electrical safety test
5.7.1 Grounding
Measure the impedance between the protective grounding terminal and all accessible metal parts of the protective grounding. It should meet the requirements of 4.6.1. If the protective grounding of the protective grounding terminal is connected through an additional lead: Measure the total grounding impedance of all connectors in the conductive reverse circuit of the additional lead skin: It should also meet the requirements of 4.6.1:
5.7.2 Insulation resistance
Use a 0V megger to measure under normal environmental conditions and constant damp heat conditions specified in Table 2. It should meet the requirements of 4.6.2.
5.7. 3 Leakage current
Measure according to the requirements of Appendix A of B470.1-1995. It should not exceed the requirements of 4.6.3. 5.7.4 Dielectric strength
Measure according to the requirements of 4.6.3 of GB4793.1-1999. 8. Before the test, the product should be subjected to humidity treatment: before the test, the sampling plan of the quality and consistency test is specified by the product standard. A certain number of samples are selected from the batch products for humidity pretreatment. The test voltage is 300 V in the D range, and 1350 V AC effective value (or 190 V DC) is applied for 1 rlit\, which should meet the requirements of 4.6.4.
5.7.5 Electrical space and creepage distance
Check according to the requirements of B4793.1-1995. 5.7.5 Electrical space and creepage distance
Measure according to the requirements of B4793.1-1995. The detection door before the report is made of mechanical insulation material
GB 15210—2003
The CTI index of the material can be set to 500, and the test results meet the requirements of 4.6.5. 5.7.6 Radiated magnetic induction intensity
Use magnetic induction intensity sensor and AC digital voltmeter to measure the radiated magnetic induction intensity in the detection area! Requirements for magnetic induction intensity sensor: The frequency response bandwidth should be at least 5 times the bandwidth of the radiated electromagnetic field, the test probe volume should not be larger than 40mmX10mm×40mm, and the output effective value should correspond to the magnetic induction intensity measured by the probe. Requirements for AC digital meter: The frequency response bandwidth should be at least 5 times the bandwidth of the radiated electromagnetic field, and the output should be compatible with the sensor output. The full-scale reading should reach more than 3.5 digits. Test method: The sensor output is connected to the voltmeter. In the area formed by 150mm inward from the left and right boundaries of the detection area, use the sensor probe to measure in the area: If the probe is non-isotropic, the probe should be rotated to obtain the maximum reading. Move the probe position back and forth one by one, and record the maximum display value of the voltmeter. It should meet the requirements of 4.6.6. The product technical specifications can also formulate similar alternative test methods according to the situation. 5.8 Detection performance test
5.8.1 Detection sensitivity range
Verify the sensitivity setting, which should meet the requirements of 4.7. ". 5.8.2 Uniformity
For all detection levels that can be met in the product technical specifications, they are tested according to the contents listed in Table ". The standard tester (special test equipment can be used) uses the test level, test object, detection position and posture specified in Table 1, starting from 1m away from the door body at a speed as close to 1.0m/. As natural as possible, pass through the detection area at a uniform speed until 1m away from the door body, and record whether there is a warning. The second test will return to the original route. The time interval between the two tests should not be less than 3$, and at each position The same test shall be carried out at least 10 times (return twice) and shall meet the requirements of Table 1 without missed alarms or false alarms. Note: Walking speed is approximately equal to the walking distance divided by the time taken. 5.8.3 Passing speed
For all detection levels that the product technical specifications state can be met, one corresponding alarm test and one non-alarm test in Table 1 shall be selected for inspection.
The standard tester (or the test equipment of the door) shall start from the door body at a detection level, test object, detection position and posture selected in Table 1, and pass through the detection area at a speed as close to the lowest and highest speeds as possible and a natural gait until 3m away from the door, and record whether there is an alarm. The second test will return along the original route. The time interval between two tests should not be shorter than 10.5. The same test should be carried out at least 10 times (one round trip) at each position, and all should meet the requirements in Table 1.5.8.4 Continuous working time
According to the relevant provisions of the product technical specifications, the detection door shall be placed in a suitable working environment, so that it is in the most sensitive detection level, and it shall continue to work for a specified time, and there shall be no false alarms during this period. After the time is up, one alarm test and one non-alarm test in Table 1 shall be selected for inspection according to the detection level. The detection door shall be able to work and 5.8.5 Counting function
Set the detection door to the detection level (, and the alarm recovery shall be set to the automatic state. The standard tester shall wear black cotton clothes and test according to the following method:
a) The standard tester shall start from the place 3m away from the door body with the test object T6, detection position L and state 1 (horizontally) and pass through the detection area at a uniform speed in a normal direction and with a natural attitude until it stops at 3m away from the door body. ）The second test will be reversed; the interval between the two tests should not be shorter than 55c) The same test should be carried out 10 times (return 5 times) at each position, and the counting results should meet the requirements of 4.7.5. 5.9 Alarm indication inspection
5.9.1 Alarm sound
When the ambient noise does not exceed 53dB, use a sound intensity meter to measure the maximum alarm sound intensity around the door at a distance of 0.&m and a height of 1.5m. The operation and identification of the alarm sound should meet the requirements of 4.3.1. 5.9.2 Alarm display
GB15210—2003
When there is no light, direct light and reflection, the ambient light illumination near the display is increased to 60001x + 600x and reduced to 251x ± 31x respectively, and the alarm display is observed 3m away from the front of the display. It should meet the requirements of 4.8.2. 5.9.3 Alarm Status Recovery
Set the detection door to the detection level (, alarm recovery to the dynamic state, call the test person (also called using special test equipment) with test object T6, detection position 1,4 and posture 1 (ask), starting from the door body 1, at a speed of approximately 1 m/s and a natural gait, pass through the detection area until 1㎡ away from the door body H, and record the time from the person leaving the test area to the alarm sound stopping. It should comply with 4.8.3. 5.10 Environmental adaptability test
5.10.1 Working environment
For working environment test, see Table 2,
5.10.2 Storage environment
For storage environment test, see Table 3.bzxZ.net
5.10.3 Mechanical stress
For mechanical stress test, see Table 1,
Table 2 Working temperature and humidity test
Test item H
Steady temperature
Severity level
Not higher than the lower limit of working temperature
Duration: 2h
Not lower than the upper limit of working temperature
Duration: 2h||t t||1. Working temperature upper limit 12℃
Relative humidity: B3%%
Duration: 481
Test method
According to CB/T2423.1 test Ab:
When the relevant items of the test are passed,
According to GB/I2423.2, according to the surface temperature of the box when the detection door is working, select test Bb or Bd. The whole process is powered on
According to G:R/T 2123.3 Test CA is carried out, and the test items are powered on at the same time. Note: Performance test beyond normal environment, intermediate test and adjustment of control parameters are allowed. Table 3 Storage temperature test Test items Low temperature storage High temperature operation Severity level No off-site storage temperature lower limit Duration: 16h Not less than storage temperature upper limit Duration, 15h Note: Simplified intermediate test is allowed Test items Duration of sweeping type Machine vibration Occasional Mechanical shock Severity level Test method According to (GH/1 2423, 1 Test A1, According to: R/ 2425. 2 Test Hb
Mechanical stress test
Test process
Normal wave 10Iz~IIz, speed
1 uc1/tnit. Amplitude 0.33 rnm or 5℃:n/4.X,Y,2 three axes
Speed 150/, half a sine wave,
Duration 11, six planes
3i in each direction
Three times on each plane
Inspection items
The initial test before the start of the test and the intermediate test before the end of each test
should be checked
4. 1,4.5,4. 7.2
Before the end of the test, check 1. 6. 2 and
4, 7, 2. After the end of the test, recover for 2 hours, Inspection 1.14.6.4
Inspection items
After the test, all items shall be restored for 2 h, and then
Inspection 4.1, 4.7.2
Test as per the method
CE/T 2423.10
GB/T 2423. 5
Inspection items
After each test, inspection shall be conducted
1.1.1.2.3a), 4, 7.2
Note: When the test equipment is limited in operation, it is allowed to decompose the door body into component modules, instead of testing only the component modules equipped with electronic circuits. Note 2: Simplified intermediate tests are allowed.
5.11 Electromagnetic compatibility test
5.11, Electrostatic discharge interference test
Perform the electrostatic discharge immunity test according to GB/T17626.2-1998, and the test level should not be lower than level 4. The test results should meet the requirements of 9
CR15210-2003
4.10.1.
Note: If the mobile detection door of the electrostatic effect generator is activated, the position of the generator should be fixed, and the detection door should be adjusted and restored to normal state before the test is carried out.
5.11.2 Radio frequency electromagnetic field radiation interference test Perform the radio frequency electromagnetic field radiation immunity test according to GB/T17626.3-1998, and the test level should not be lower than level 2. The test results meet the requirements of 4.10.2.
5.11.3 Surge (impact) disturbance test
According to GB/T17626.【999】, the surge (impact) immunity test shall be carried out, and the test level shall not be lower than level 2. The test results shall meet the requirements of 4.10.3.
5.12 Mutual interference test
Two detection doors of the same model are placed side by side (Y axis parallel) according to the requirements of 4.11, and are turned on for 1 hour at a time, and no false alarms should occur during this period. Then, according to the detection level, one alarm test and one non-alarm test in Table 1 are selected for inspection, and both should be able to work normally: no missed alarm or false alarm occurs. 5.13 Static metal object impact test
5.13.1 Static metal object
The plane of the test object T0 is directly above the ground, and its center is 1 meter above the ground. According to the minimum spacing specified in the product technical specifications, place To parallel to one of the outer sides of the detection door. After the detection door is stable, the detection performance test should meet the requirements of 4.7.2. The same test should be carried out on the other three sides of the detection door, see Figure 3. 5.13.2 Underground metal structure
Spread the test object I on the ground and place a wooden bracket with a diameter of 100mm on it. The detection door is placed on the bracket and marked in the middle of T. The bracket should be sufficient to support the detection door and the test person walking without distortion and deformation, and there should be no metal objects on the bracket. See Figure 3.
Test according to the requirements of 4.7.2. Before testing, it is allowed to fine-tune the recommended setting parameters: To
Bracket
Figure 3 The influence of static metal objects on detection performance 10
5.14 Anti-disturbance test of surrounding moving metal objects GB15210-2003
The detector is set according to the parameters specified in the product standard and enters the working state. The plane of the test object 10 is vertically supported by the ground, and the center is at a height of 5. According to the minimum distance specified in the product technical specification, I0 is parallel to the outer side of the detection door. Keep the distance and move TU back and forth to the left in a direction parallel to the outer side of the detection door by 0, 5 Ⅲ, the detection door should not have false alarms, and the other three sides of the detection door should be tested from time to time.
5 Inspection regulations
6.1 Inspection types and groups
(B/16593-1596. Inspection is divided into two types: identification inspection and quality consistency inspection. And according to the performance characteristics of the product, all inspection items are divided into six inspection items from A to F. 6.2 Inspection items
The inspection items under different inspection types are carried out according to the provisions of the table. 6.3 Defect determination and classification
According to the degree of influence of the defect on the performance of the detection door, it can be divided into the following three categories: Fatal defect: the most dangerous to human safety or seriously damages the basic function of the detection environment. Defects, Severe defects: Errors exceeding the limit, partial functional failure or defects that hinder the normal operation of the detection door. Minor defects: Defects that do not affect the overall situation or can be simply adjusted to enable the detection door to maintain basic functions, Inspection group and inspection items
Inspection group
Inspection neck
Gate structure
Pedestrian access
Structural stability
Operation authorization
Button and control pen cover
Tracking range
Power supply application range
Insulation resistance
Current
Dielectric strength
Wuhan inspection
Technical requirements
4, 2, 4
! Electrical resistance and electrical separation!
Towards magnetic induction current
Detection sensitivity range
Detection and transmission speed change
. 7. 5
Test type
Defect classification1 Test Ab is conducted:
Relevant items of the test are also turned on
According to GB/I2423.2, according to the surface temperature of the detector box during operation, select test Bb or Bd. The whole process is powered on
According to GB/I2423.3 Test CA is conducted, and the test items are powered on
Note: Performance test beyond normal environment allows for fine-tuning of intermediate tests and adjustment of control parameters. Table 3 Storage temperature test Test items Low temperature storage High temperature storage Severity level Storage temperature lower limit Duration: 16h Not less than storage temperature upper limit Duration, 15h Note: Simplified intermediate test is allowed Test items Sweep type Duration Machine vibration Occasional Mechanical shock Severity level Test method According to (GH/1 2423, 1 Test A1, According to: R/ 2425. 2 Test Hb
Mechanical shock stress test
Test process
Normal wave 10Iz~IIz, speed
1 uc1/tnit. Amplitude 0.33 rnm or 5℃:n/4.X,Y,2 three axes
Such as speed 150/, half a sine wave,
Duration 11, six planes
3i in each direction
Three times on each plane
Inspection items
Initial test before the start of the test and intermediate test before the end of each test
Should be checked
4.1,4.5,4.7.2
Before the end of the test, check 1.6.2 and
4, 7, 2. After the end of the test, recover for 2 hours, Inspection 1.14.6.4
Inspection items
After the test, all items shall be restored for 2 h, and then
Inspection 4.1, 4.7.2
Test as per the method
CE/T 2423.10
GB/T 2423. 5
Inspection items
After each test, inspection shall be conducted
1.1.1.2.3a), 4, 7.2
Note: When the test equipment is limited in operation, it is allowed to decompose the door body into component modules, instead of testing only the component modules equipped with electronic circuits. Note 2: Simplified intermediate tests are allowed.
5.11 Electromagnetic compatibility test
5.11, Electrostatic discharge interference test
Perform the electrostatic discharge immunity test according to GB/T17626.2-1998, and the test level should not be lower than level 4. The test results should meet the requirements of 9
CR15210-2003
4.10.1.
Note: If the mobile detection door of the electrostatic effect generator is activated, the position of the generator should be fixed, and the detection door should be adjusted and restored to normal state before the test is carried out.
5.11.2 Radio frequency electromagnetic field radiation interference test Perform the radio frequency electromagnetic field radiation immunity test according to GB/T17626.3-1998, and the test level should not be lower than level 2. The test results meet the requirements of 4.10.2.
5.11.3 Surge (impact) disturbance test
According to GB/T17626.【999】, the surge (impact) immunity test shall be carried out, and the test level shall not be lower than level 2. The test results shall meet the requirements of 4.10.3.
5.12 Mutual interference test
Two detection doors of the same model are placed side by side (Y axis parallel) according to the requirements of 4.11, and are turned on for 1 hour at a time, and no false alarms should occur during this period. Then, according to the detection level, one alarm test and one non-alarm test in Table 1 are selected for inspection, and both should be able to work normally: no missed alarm or false alarm occurs. 5.13 Static metal object impact test
5.13.1 Static metal object
The plane of the test object T0 is directly above the ground, and its center is 1 meter above the ground. According to the minimum spacing specified in the product technical specifications, place To parallel to one of the outer sides of the detection door. After the detection door is stable, the detection performance test should meet the requirements of 4.7.2. The same test should be carried out on the other three sides of the detection door, see Figure 3. 5.13.2 Underground metal structure
Spread the test object I on the ground and place a wooden bracket with a diameter of 100mm on it. The detection door is placed on the bracket and marked in the middle of T. The bracket should be sufficient to support the detection door and the test person walking without distortion and deformation, and there should be no metal objects on the bracket. See Figure 3.
Test according to the requirements of 4.7.2. Before testing, it is allowed to fine-tune the recommended setting parameters: To
Bracket
Figure 3 The influence of static metal objects on detection performance 10
5.14 Anti-disturbance test of surrounding moving metal objects GB15210-2003
The detector is set according to the parameters specified in the product standard and enters the working state. The plane of the test object 10 is vertically supported by the ground, and the center is at a height of 5. According to the minimum distance specified in the product technical specification, I0 is parallel to the outer side of the detection door. Keep the distance and move TU back and forth to the left in a direction parallel to the outer side of the detection door by 0, 5 Ⅲ, the detection door should not have false alarms, and the other three sides of the detection door should be tested from time to time.
5 Inspection regulations
6.1 Inspection types and groups
(B/16593-1596. Inspection is divided into two types: identification inspection and quality consistency inspection. And according to the performance characteristics of the product, all inspection items are divided into six inspection items from A to F. 6.2 Inspection items
The inspection items under different inspection types are carried out according to the provisions of the table. 6.3 Defect determination and classification
According to the degree of influence of the defect on the performance of the detection door, it can be divided into the following three categories: Fatal defect: the most dangerous to human safety or seriously damages the basic function of the detection environment. Defects, Severe defects: Errors exceeding the limit, partial functional failure or defects that hinder the normal operation of the detection door. Minor defects: Defects that do not affect the overall situation or can be simply adjusted to enable the detection door to maintain basic functions, Inspection group and inspection items
Inspection group
Inspection neck
Gate structure
Pedestrian access
Structural stability
Operation authorization
Button and control pen cover
Tracking range
Power supply application range
Insulation resistance
Current
Dielectric strength
Wuhan inspection
Technical requirements
4, 2, 4
! Electrical resistance and electrical separation!
Towards magnetic induction current
Detection sensitivity range
Detection and transmission speed change
. 7. 5
Test type
Defect classification1 Test Ab is conducted:
Relevant items of the test are also turned on
According to GB/I2423.2, according to the surface temperature of the detector box during operation, select test Bb or Bd. The whole process is powered on
According to GB/I2423.3 Test CA is conducted, and the test items are powered on
Note: Performance test beyond normal environment allows for fine-tuning of intermediate tests and adjustment of control parameters. Table 3 Storage temperature test Test items Low temperature storage High temperature storage Severity level Storage temperature lower limit Duration: 16h Not less than storage temperature upper limit Duration, 15h Note: Simplified intermediate test is allowed Test items Sweep type Duration Machine vibration Occasional Mechanical shock Severity level Test method According to (GH/1 2423, 1 Test A1, According to: R/ 2425. 2 Test Hb
Mechanical shock stress test
Test process
Normal wave 10Iz~IIz, speed
1 uc1/tnit. Amplitude 0.33 rnm or 5℃:n/4.X,Y,2 three axes
Such as speed 150/, half a sine wave,
Duration 11, six planes
3i in each direction
Three times on each plane
Inspection items
Initial test before the start of the test and intermediate test before the end of each test
Should be checked
4.1,4.5,4.7.2
Before the end of the test, check 1.6.2 and
4, 7, 2. After the end of the test, recover for 2 hours, Inspection 1.14.6.4
Inspection items
After the test, all items shall be restored for 2 h, and then
Inspection 4.1, 4.7.2
Test as per the method
CE/T 2423.10
GB/T 2423. 5
Inspection items
After each test, inspection shall be conducted
1.1.1.2.3a), 4, 7.2
Note: When the test equipment is limited in operation, it is allowed to decompose the door body into component modules, instead of testing only the component modules equipped with electronic circuits. Note 2: Simplified intermediate tests are allowed.
5.11 Electromagnetic compatibility test
5.11, Electrostatic discharge interference test
Perform the electrostatic discharge immunity test according to GB/T17626.2-1998, and the test level should not be lower than level 4. The test results should meet the requirements of 9
CR15210-2003
4.10.1.
Note: If the mobile detection door of the electrostatic effect generator is activated, the position of the generator should be fixed, and the detection door should be adjusted and restored to normal state before the test is carried out.
5.11.2 Radio frequency electromagnetic field radiation interference test Perform the radio frequency electromagnetic field radiation immunity test according to GB/T17626.3-1998, and the test level should not be lower than level 2. The test results meet the requirements of 4.10.2.
5.11.3 Surge (impact) disturbance test
According to GB/T17626.【999】, the surge (impact) immunity test shall be carried out, and the test level shall not be lower than level 2. The test results shall meet the requirements of 4.10.3.
5.12 Mutual interference test
Two detection doors of the same model are placed side by side (Y axis parallel) according to the requirements of 4.11, and are turned on for 1 hour at a time, and no false alarms should occur during this period. Then, according to the detection level, one alarm test and one non-alarm test in Table 1 are selected for inspection, and both should be able to work normally: no missed alarm or false alarm occurs. 5.13 Static metal object impact test
5.13.1 Static metal object
The plane of the test object T0 is directly above the ground, and its center is 1 meter above the ground. According to the minimum spacing specified in the product technical specifications, place To parallel to one of the outer sides of the detection door. After the detection door is stable, the detection performance test should meet the requirements of 4.7.2. The same test should be carried out on the other three sides of the detection door, see Figure 3. 5.13.2 Underground metal structure
Spread the test object I on the ground and place a wooden bracket with a diameter of 100mm on it. The detection door is placed on the bracket and marked in the middle of T. The bracket should be sufficient to support the detection door and the test person walking without distortion and deformation, and there should be no metal objects on the bracket. See Figure 3.
Test according to the requirements of 4.7.2. Before testing, it is allowed to fine-tune the recommended setting parameters: To
Bracket
Figure 3 The influence of static metal objects on detection performance 10
5.14 Anti-disturbance test of surrounding moving metal objects GB15210-2003
The detector is set according to the parameters specified in the product standard and enters the working state. The plane of the test object 10 is vertically supported by the ground, and the center is at a height of 5. According to the minimum distance specified in the product technical specification, I0 is parallel to the outer side of the detection door. Keep the distance and move TU back and forth to the left in a direction parallel to the outer side of the detection door by 0, 5 Ⅲ, the detection door should not have false alarms, and the other three sides of the detection door should be tested from time to time.
5 Inspection regulations
6.1 Inspection types and groups
(B/16593-1596. Inspection is divided into two types: identification inspection and quality consistency inspection. And according to the performance characteristics of the product, all inspection items are divided into six inspection items from A to F. 6.2 Inspection items
The inspection items under different inspection types are carried out according to the provisions of the table. 6.3 Defect determination and classification
According to the degree of influence of the defect on the performance of the detection door, it can be divided into the following three categories: Fatal defect: the most dangerous to human safety or seriously damages the basic function of the detection environment. Defects, Severe defects: Errors exceeding the limit, partial functional failure or defects that hinder the normal operation of the detection door. Minor defects: Defects that do not affect the overall situation or can be simply adjusted to enable the detection door to maintain basic functions, Inspection group and inspection items
Inspection group
Inspection neck
Gate structure
Pedestrian access
Structural stability
Operation authorization
Button and control pen cover
Tracking range
Power supply application range
Insulation resistance
Current
Dielectric strength
Wuhan inspection
Technical requirements
4, 2, 4
! Electrical resistance and electrical separation!
Towards magnetic induction current
Detection sensitivity range
Detection and transmission speed change
. 7. 5
Test type
Defect classification4.5,4.7.2 Before the test, check 1.6.2 and 4,7.2. After the test, recover for 2 hours, check 1.14.6.4. Inspection items After the test, recover for 2 hours, then check 4.1,4.7.2. Test method CE/T 2423.10 GB/T 2423.5 Inspection items After each test, check 1.1.1.2.3a), 4,7.2 Note: When the test equipment is limited, it is allowed to decompose the door into component modules, not just the component module equipped with electronic circuits. Note 2: Simplified intermediate tests are allowed.
5.11 Electromagnetic compatibility test
5.11, Electrostatic discharge interference test
Perform the electrostatic discharge immunity test according to GB/T17626.2-1998, and the test level should not be lower than level 4. The test results should meet the requirements of 9
CR15210-2003
4.10.1.
Note: If the mobile detection door of the electrostatic effect generator is activated, the position of the generator should be fixed, and the detection door should be adjusted and restored to normal state before the test is carried out.
5.11.2 Radio frequency electromagnetic field radiation interference test Perform the radio frequency electromagnetic field radiation immunity test according to GB/T17626.3-1998, and the test level should not be lower than level 2. The test results meet the requirements of 4.10.2.
5.11.3 Surge (impact) disturbance test
According to GB/T17626.【999】, the surge (impact) immunity test shall be carried out, and the test level shall not be lower than level 2. The test results shall meet the requirements of 4.10.3.
5.12 Mutual interference test
Two detection doors of the same model are placed side by side (Y axis parallel) according to the requirements of 4.11, and are turned on for 1 hour at a time, and no false alarms should occur during this period. Then, according to the detection level, one alarm test and one non-alarm test in Table 1 are selected for inspection, and both should be able to work normally: no missed alarm or false alarm occurs. 5.13 Static metal object impact test
5.13.1 Static metal object
The plane of the test object T0 is directly above the ground, and its center is 1 meter above the ground. According to the minimum spacing specified in the product technical specifications, place To parallel to one of the outer sides of the detection door. After the detection door is stable, the detection performance test should meet the requirements of 4.7.2. The same test should be carried out on the other three sides of the detection door, see Figure 3. 5.13.2 Underground metal structure
Spread the test object I on the ground and place a wooden bracket with a diameter of 100mm on it. The detection door is placed on the bracket and marked in the middle of T. The bracket should be sufficient to support the detection door and the test person walking without distortion and deformation, and there should be no metal objects on the bracket. See Figure 3.
Test according to the requirements of 4.7.2. Before testing, it is allowed to fine-tune the recommended setting parameters: To
Bracket
Figure 3 The influence of static metal objects on detection performance 10
5.14 Anti-disturbance test of surrounding moving metal objects GB15210-2003
The detector is set according to the parameters specified in the product standard and enters the working state. The plane of the test object 10 is vertically supported by the ground, and the center is at a height of 5. According to the minimum distance specified in the product technical specification, I0 is parallel to the outer side of the detection door. Keep the distance and move TU back and forth to the left in a direction parallel to the outer side of the detection door by 0, 5 Ⅲ, the detection door should not have false alarms, and the other three sides of the detection door should be tested from time to time.
5 Inspection regulations
6.1 Inspection types and groups
(B/16593-1596. Inspection is divided into two types: identification inspection and quality consistency inspection. And according to the performance characteristics of the product, all inspection items are divided into six inspection items from A to F. 6.2 Inspection items
The inspection items under different inspection types are carried out according to the provisions of the table. 6.3 Defect determination and classification
According to the degree of influence of the defect on the performance of the detection door, it can be divided into the following three categories: Fatal defect: the most dangerous to human safety or seriously damages the basic function of the detection environment. Defects, Severe defects: Errors exceeding the limit, partial functional failure or defects that hinder the normal operation of the detection door. Minor defects: Defects that do not affect the overall situation or can be simply adjusted to enable the detection door to maintain basic functions, Inspection group and inspection items
Inspection group
Inspection neck
Gate structure
Pedestrian access
Structural stability
Operation authorization
Button and control pen cover
Tracking range
Power supply application range
Insulation resistance
Current
Dielectric strength
Wuhan inspection
Technical requirements
4, 2, 4
! Electrical resistance and electrical separation!
Towards magnetic induction current
Detection sensitivity range
Detection and transmission speed change
. 7. 5
Test type
Defect classification4.5,4.7.2 Before the test, check 1.6.2 and 4,7.2. After the test, recover for 2 hours, check 1.14.6.4. Inspection items After the test, recover for 2 hours, then check 4.1,4.7.2. Test method CE/T 2423.10 GB/T 2423.5 Inspection items After each test, check 1.1.1.2.3a), 4,7.2 Note: When the test equipment is limited, it is allowed to decompose the door into component modules, not just the component module equipped with electronic circuits. Note 2: Simplified intermediate tests are allowed.
5.11 Electromagnetic compatibility test
5.11, Electrostatic discharge interference test
Perform the electrostatic discharge immunity test according to GB/T17626.2-1998, and the test level should not be lower than level 4. The test results should meet the requirements of 9
CR15210-2003
4.10.1.
Note: If the mobile detection door of the electrostatic effect generator is activated, the position of the generator should be fixed, and the detection door should be adjusted and restored to normal state before the test is carried out.
5.11.2 Radio frequency electromagnetic field radiation interference test Perform the radio frequency electromagnetic field radiation immunity test according to GB/T17626.3-1998, and the test level should not be lower than level 2. The test results meet the requirements of 4.10.2.
5.11.3 Surge (impact) disturbance test
According to GB/T17626.【999】, the surge (impact) immunity test shall be carried out, and the test level shall not be lower than level 2. The test results shall meet the requirements of 4.10.3.
5.12 Mutual interference test
Two detection doors of the same model are placed side by side (Y axis parallel) according to the requirements of 4.11, and are turned on for 1 hour at a time, and no false alarms should occur during this period. Then, according to the detection level, one alarm test and one non-alarm test in Table 1 are selected for inspection, and both should be able to work normally: no missed alarm or false alarm occurs. 5.13 Static metal object impact test
5.13.1 Static metal object
The plane of the test object T0 is directly above the ground, and its center is 1 meter above the ground. According to the minimum spacing specified in the product technical specifications, place To parallel to one of the outer sides of the detection door. After the detection door is stable, the detection performance test should meet the requirements of 4.7.2. The same test should be carried out on the other three sides of the detection door, see Figure 3. 5.13.2 Underground metal structure
Spread the test object I on the ground and place a wooden bracket with a diameter of 100mm on it. The detection door is placed on the bracket and marked in the middle of T. The bracket should be sufficient to support the detection door and the test person walking without distortion and deformation, and there should be no metal objects on the bracket. See Figure 3.
Test according to the requirements of 4.7.2. Before testing, it is allowed to fine-tune the recommended setting parameters: To
Bracket
Figure 3 The influence of static metal objects on detection performance 10
5.14 Anti-disturbance test of surrounding moving metal objects GB15210-2003
The detector is set according to the parameters specified in the product standard and enters the working state. The plane of the test object 10 is vertically supported by the ground, and the center is at a height of 5. According to the minimum distance specified in the product technical specification, I0 is parallel to the outer side of the detection door. Keep the distance and move TU back and forth to the left in a direction parallel to the outer side of the detection door by 0, 5 Ⅲ, the detection door should not have false alarms, and the other three sides of the detection door should be tested from time to time.
5 Inspection regulations
6.1 Inspection types and groups
(B/16593-1596. Inspection is divided into two types: identification inspection and quality consistency inspection. And according to the performance characteristics of the product, all inspection items are divided into six inspection items from A to F. 6.2 Inspection items
The inspection items under different inspection types are carried out according to the provisions of the table. 6.3 Defect determination and classification
According to the degree of influence of the defect on the performance of the detection door, it can be divided into the following three categories: Fatal defect: the most dangerous to human safety or seriously damages the basic function of the detection environment. Defects, Severe defects: Errors exceeding the limit, partial functional failure or defects that hinder the normal operation of the detection door. Minor defects: Defects that do not affect the overall situation or can be simply adjusted to enable the detection door to maintain basic functions, Inspection group and inspection items
Inspection group
Inspection neck
Gate structure
Pedestrian access
Structural stability
Operation authorization
Button and control pen cover
Tracking range
Power supply application range
Insulation resistance
Current
Dielectric strength
Wuhan inspection
Technical requirements
4, 2, 4
! Electrical resistance and electrical separation!
Towards magnetic induction current
Detection sensitivity range
Detection and transmission speed change
. 7. 5
Test type
Defect classification14 Anti-disturbance test for surrounding moving objects GB15210-2003
The detector is set according to the parameters specified in the product standard and enters the working state. The plane of the test object 10 is vertically supported by the ground, and its center is at a height of 5. According to the minimum distance specified in the product technical specification, I0 is parallel to the outer side of the detection door. Keeping the distance, move TU back and forth to the left in a direction parallel to the outer side of the detection door by 0, 5 Ⅲ, the detection door should not have false alarms, and the other three sides of the detection door should be tested from time to time.
5 Inspection regulations
6.1 Inspection types and groups
(B/16593-1596. Inspection is divided into two types: identification inspection and quality consistency inspection. And according to the performance characteristics of the product, all inspection items are divided into six inspection items from A to F. 6.2 Inspection items
The inspection items under different inspection types are carried out according to the provisions of the table. 6.3 Defect determination and classification
According to the degree of influence of the defect on the performance of the detection door, it can be divided into the following three categories: Fatal defect: the most dangerous to human safety or seriously damages the basic function of the detection environment. Defects, Severe defects: Errors exceeding the limit, partial functional failure or defects that hinder the normal operation of the detection door. Minor defects: Defects that do not affect the overall situation or can be simply adjusted to enable the detection door to maintain basic functions, Inspection group and inspection items
Inspection group
Inspection neck
Gate structure
Pedestrian access
Structural stability
Operation authorization
Button and control pen cover
Tracking range
Power supply application range
Insulation resistance
Current
Dielectric strength
Wuhan inspection
Technical requirements
4, 2, 4
! Electrical resistance and electrical separation!
Towards magnetic induction current
Detection sensitivity range
Detection and transmission speed change
. 7. 5
Test type
Defect classification14 Anti-disturbance test for surrounding moving objects GB15210-2003
The detector is set according to the parameters specified in the product standard and enters the working state. The plane of the test object 10 is vertically supported by the ground, and its center is at a height of 5. According to the minimum distance specified in the product technical specification, I0 is parallel to the outer side of the detection door. Kee
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