Some standard content:
National Standard of the People's Republic of China
Video intrusion alarm
Video motion detector
1 Subject content and scope of application
GB 15207—94
This standard It stipulates the technical requirements, test methods and inspection rules for video intrusion alarms, which is the basic basis for the design, manufacture and acceptance of video intrusion alarms. wwW.bzxz.Net
This standard is applicable to general-purpose cable transmission video intrusion alarms that apply to TV standards. Other standards can also be implemented with reference. 2 Referenced Standards
GB191 Packaging, Storage and Transportation Pictorial Marks
GB2423.1 Basic Environmental Testing Procedures for Electrical and Electronic Products Test A: Low Temperature Test Method GB2423.2 Basic Environmental Testing Procedures for Electrical and Electronic Products Test B: High temperature test method GB2423.3 Electrical T. Basic environmental test procedures for electronic products Test Ca: Constant damp heat test method GB4208 Classification of enclosure protection levels
GB 6833. 3
GB6833.4
Specification for electromagnetic compatibility test of electronic leather testing instruments Electrostatic discharge sensitivity test Specification for electromagnetic compatibility test of electronic leather testing instruments Power supply transient sensitivity test
Specification for electromagnetic compatibility testing of electronic testing instruments GB 6833. 5||tt ||Radiation sensitivity test
Conduction sensitivity test
Electromagnetic compatibility test specifications for electrical base measuring instruments GB 6833. 6
GB 12322
GB 12663|| tt | A system that combines monitors, transmission and recording devices to detect intrusion targets in a set area.
video motion detector
3.2 video intrusion alarm
A slow person (or object) enters the police area, causing the brightness signal in the video signal to change. It can respond to this change and output an alarm. Video signals and devices that emit audible and visual alarms.
3.3 Warning zone armed region
Within the field of view, a preset area that can respond to changes in video signals and generate alarm signals 3.4 Sensitivity sensitivity
The reference target is at detectable speed The minimum change average level of the brightness signal in the video signal that causes the video intrusion alarm to alarm after intrusion into the warning zone within the range.
3.5 Video constant region The video constant region sets an identifiable specific area on the display screen in which the video signal remains unchanged. State Bureau of Technical Supervision approved 632
1995-04-01 Implementation on 1994-09-10
4 Product Classification
4.1 Video intrusion alarms can be divided into a. Single channel;
b. Multiplex.
GB 15207--94
4.2 Video intrusion alarms can be divided into: a. Window type;
b． Full field of view point type.
5 Technical Requirements
5.1 Appearance and Mechanical Structure Requirements
5.1.1 Appearance Requirements
The overall dimensions of the video intrusion alarm should comply with the drawing requirements, and the surface of the plastic shell There should be no cracks, fading and permanent stains, as well as obvious deformation and scratches. The metal surface coating should not expose the underlying metal or have blistering, and there should be no corrosion, burr cracks, peeling off, etc. The control mechanism should be flexible and reliable in operation, and the text and symbols describing the functions should be clear. 5.1.2 Structural requirements
5.1.2.1 The video intrusion alarm casing panel should have sound and light indicators and necessary function keys of the machine, and the function settings should be able to be locked. 5.1.2.2 The protection level of the video intrusion alarm shell shall comply with the IP20 regulations in GB4208. 5.1.2.3 The shell should have sufficient mechanical strength and rigidity. The shell containing the high-voltage circuit should be able to withstand a force of 111N and an impact of 6.9J without causing dents and cracks greater than 1.5mm. The housing containing the low-voltage circuit should be able to withstand a force of 49N and an impact of 2.7J without causing dents and cracks greater than 3 mm.
5.2 Performance requirements
5.2.1 Interface requirements
5.2.1.1 Input and output impedance: 75Q.
5.2.1.2 Input and output video signal amplitude: 1V (peak-peak) (video signal 0.7±0.21V (peak-peak), synchronization signal 0.3±8V (peak-peak)), positive polarity. 5.2.1.3 The video signal input and output sockets adopt high-frequency coaxial sockets. BNC sockets are preferred. 5.2.2 Video channel requirements
5.2.2.1 Video bandwidth: not less than 6MHz. 5.2.2.2 When the input signal signal-to-noise ratio is not less than 43dB, the output signal signal-to-noise ratio is not less than 40dB. 5.2.2.3 Inter-channel isolation: 40dB.
5.2.3 Warning zone setting requirements
The warning zone should be set within a rectangular area defined by no less than 80% of the horizontal and vertical axes of the center of the screen. a. Window type: The warning area is an arbitrarily set window (alarm window) on the screen. Its position can be moved horizontally and vertically within the above area, and its size is adjustable. The minimum alarm window 11 shall not be larger than 1/400 of the actual screen area, and the number of window settings shall be specified by the product standard. b. Full field of view point type: The warning zone can be set arbitrarily in a regularly distributed dot matrix on the screen, and the number of points is specified by the product standard. 5.2.4 Sensitivity requirements
In any area of ??the settable area, in a warning area with an area of ??1/100 of the screen, the average level change that causes an alarm shall not be greater than 70mV.
5.2.5 Alarm Function
Audible alarm: The sound pressure level of the audio device during alarm should comply with the provisions of Article 5.2.12 of GB12663. a.
b． Visual alarm: When alarming, a red light should flash and indicate the location of the intrusion. . Alarm output: Normally open and normally closed contacts should be provided for controlling other equipment. 633
GB 15207-—94
Reset function: The audible alarm has both manual and automatic reset modes. The automatic reset time is not less than 10 and is adjustable. The visual alarm d.
only needs manual reset. After reset, if an intrusion occurs, the audible and visual alarm signal will be re-issued. Multi-channel video intrusion alarms should have the function of alarming at least two channels simultaneously. When a certain channel is in alarm state, if there is an intrusion on other channels, e.
should still be able to send out alarm signals and have corresponding video signal processing. and other functions. 5.2.6 Anti-vandal alarm function
When the camera power cord or video transmission cable is cut off, the video intrusion alarm shall send out audible and visual alarm signals. The alarm signal should be maintained until the cause is eliminated before it can be reset. 5.2.7 Self-checking function
Video intrusion alarms should generally have the function of checking whether they are working normally. Self-inspection items are specified by product standards. 5.3 Stability requirements
The video intrusion alarm operates continuously for 168 hours, and there should be no false alarms or missed alarms. 5.4 Power supply voltage adaptation range
When the power supply voltage changes within the range of 187~242V, the video intrusion alarm should be able to work normally without adjustment. 5.5 Environmental adaptability requirements
5.5.1 Climate and environmental adaptability requirements
The video intrusion alarm should be able to work normally under the conditions of -10~~1055℃ and relative humidity not greater than 95%. Carry out the test according to the conditions specified in Table 1, and check the alarm function after each test. Table 1
Test items
Low temperature test
Ab
Low temperature storage
High temperature test
Bb
Constant damp heat test
Ca
5.5.2 Mechanical environment adaptability requirements
Test parameters
Temperature
Duration
Temperature
Duration
Temperature
Duration
Relative humidity
Temperature
Duration
Test conditions
--10±3
2h
40±3℃
16h
55±2℃
2h
(93+)%
40±2℃
48h
The video intrusion alarm should be able to operate normally after undergoing the mechanical environment adaptability test specified in Table 2 of GB12663, and the components should not be loose, displaced or damaged, and the casing should not be deformed. 5.6 Anti-interference requirements
5.6.1 The video intrusion alarm shall be tested according to the methods specified in GB6833.3~GB6833.6. During the test, it shall operate normally without false alarms or missing alarms.
5.6.2 Slow changes in ambient illumination should not cause false alarms. 634
5.7 Safety requirements
GB 15207-94
5.7.1 The AC power lead should be able to withstand a tensile force of 19.6N for 60s without damage. 5.7.2 Insulation resistance
The insulation resistance of the video intrusion alarm shall comply with the provisions of Article 5.7.1 of GB12663. 5.7.3 Leakage current
Leakage current shall comply with the provisions of Article 5.7.5 of GB12663. 5.7.4 Electrical strength
The connection between the power plug or power inlet terminal of the video intrusion alarm and the exposed metal part of the shell should be able to withstand the electric strength test of 50Hz AC voltage specified in Table 2. There should be no shock after 1 minute. Penetration and arcing phenomena. Table 2
Insulation level
Class equipment
Class equipment
5.7.5 Flame retardant requirements
Rated voltage, V
(AC RMS or DC)
060
>60～130
130～250
0～60
>60～130||tt ||>130～250
The flame retardant requirements of video intrusion alarms shall comply with the provisions of Article 5.7.3 of GB12663. 5.8 Reliability requirements
Test voltage, kv
(AC RMS)
0.50
1. 00
1.50
0.75
1.50
3.00
Video Intrusion The lower limit value (8) of the alarm's mean time between failures (MTBF) is divided into three levels: A, B, and C. Level A: 5X103h
Level B: 2×104h
Level C. :6X10+h
Test method
6
6.1 Test conditions
Except for the climate environment adaptability test, all tests are conducted under the following normal atmospheric conditions. Temperature: 15~35℃
Relative humidity: 45%~75%
Atmospheric pressure: 86106kPa
6.2 Appearance and mechanical structure
6.2.1 Appearance inspection|| tt||Requirement.
Use calipers and other measuring tools to check the overall dimensions according to the drawings, visually inspect the appearance, and inspect the control mechanism by hand, etc. should comply with the requirements of 5.1.1. 6.2.2 The enclosure protection level shall be in accordance with the IP20 regulations in GB4208. The test method shall comply with the requirements of 5.1.2.2. 6.2.3 Shell mechanical strength test
6.2.3.1 Shell pressure test
According to GB12663 6.2. The test shall be carried out according to the test method specified in Article 3.1. The inspection shall be carried out after the test and shall comply with the requirements of Article 5.1.2.3. 635
6.2.3.2 Shell impact strength test
GB 1520794
The test shall be carried out according to the test method specified in Article 6.2.3.2, and the inspection shall be carried out after the impact test, which shall comply with the requirements of Article 5.1.2.3
6.3 Performance test method
6.3.1 Test instrument||tt| |a. Oscilloscope
Frequency bandwidth: not less than 0~20MHz, with field selection and line selection functions Sensitivity: 10mV/cm
b. Monitor
Image resolution: not less than 600 lines
Grayscale (brightness identification level): not less than level 10 video clutter measuring instrument
c.
Frequency range: 40Hz~~10MHz (frequency response flatness ± 2dB) Measuring range: 080dB
Accuracy: ±1dB
d． The video signal generator
can output signals such as multi-wave group, staircase wave, dot grid, black and white, sub-carrier and frequency sweep (range: 100kHz ~ 10MHz). Signal-to-noise ratio: greater than 50dB
e, video analog intrusion signal generator
intrusion rectangular signal moving speed: horizontal 1/60~1w/s (w is the horizontal width of the monitor screen) vertical 3.3~ 200H/s | | tt | Level, minimum illumination 0.31x (F1: 1.4), signal-to-noise ratio greater than 43dB, video output 1V (peak-to-peak) positive polarity, output impedance 75α. 6.3.2 Test conditions
The video intrusion alarm system is placed in an environment with a constant background. The illumination of the scene should conform to the optimal working illumination of the camera and should not change significantly. The camera video output is 1±0.1V (peak-to-peak). There are no moving objects or shadows in the background. The video intrusion alarm performance test should be conducted under impedance matching, and the free port should be connected to a 752 matching load. 6.3.3 Interface and channel measurement test
6.3.3.1 Measurement of video signal amplitude and polarity Add a 1V (peak-peak) positive polarity step wave signal to the input end of the video intrusion alarm, and use an oscilloscope to measure the corresponding output end The amplitude and polarity of video signals shall comply with the requirements of Article 5.2.1.2. 6.3.3.2 Measurement of video channel bandwidth
Input multi-wave group or sweep signal. The signal amplitude is 1V (peak-peak), and the video bandwidth of a 3dB point is measured, which should meet the requirements of 5.2.2.1.
6.3.3.3 Signal-to-noise ratio measurement
Between the measured object and the measuring instrument, first connect a 100kHz high-pass filter and a 6MHz low-pass filter to limit the upper and lower frequency limits. Then send the 50% white level composite video signal to the input port of the video intrusion alarm channel to be tested, and use a video clutter meter to measure the signal-to-noise ratio of the input port and the corresponding output port. The results shall comply with the requirements of Article 5.2.2.2. For multi-channel video intrusion alarms, the tests in 6.3.3.1 to 6.3.3.3 should be repeated for each channel. 6.3.3.4 Measurement of isolation (applicable to multi-channel video intrusion alarms) Send a 4.43MHz signal with an amplitude of 0.7V (peak-peak) to the input port of the video intrusion alarm channel to be tested, and its corresponding output 636||tt ||GB 15207—94
Use an oscilloscope to measure the amplitude of the signal, which is marked as A. Change the original input signal to the adjacent input port, and measure the interference amplitude at the original output port, which is marked as B. Calculate the value of 20logA/B, which is the isolation degree, and should meet the requirements of 5.2.2.3. Each channel should be tested as above and should meet the requirements of 5.2.2.3. 6.3.4 Warning zone setting test
Connect the camera, video intrusion alarm, and monitor into an alarm system, turn on the power, and operate the relevant function keys on the intrusion video alarm panel to display an alarm window on the monitor , and adjust the position and size of each window separately. For full-field point-type video intrusion alarms, a warning area is set up on the screen in accordance with the relevant provisions of product standards. The above results shall comply with the requirements of Article 5.2.3. 6.3.5 Sensitivity test
Connect the video analog intrusion signal generator to the input terminal of the video intrusion alarm, and preset and adjust the warning zone to a rectangular window with 1/100 of the screen area. Use an invasion rectangle with horizontal moving speeds of 1w/s, 1/4w/s, and 1/8w/s, vertical moving speeds of 200H/s, 50H/s, and 25H/s, and a background level difference of 70mV. The signal (its size is equal to or larger than the warning zone window) is tested for intrusion into the warning zone in any direction. All video intrusion alarms should enter the alarm state and issue audible and visual alarms. 6.3.6 Alarm function test
Connect the camera, video intrusion alarm, and monitor into an alarm system, and turn on the power to put the test sample in a normal alert state a. The reference target is gray. If you enter a certain warning zone at normal speed, you should sound and light alarm, and observe the automatic reset status of the sound alarm. Enter another warning zone in the same way, sound and light alarm again, and operate the manual reset button. The light indicator disappears. For multi-channel video intrusion alarms, two simultaneous intrusion tests should be conducted and the alarm signals and functions should be checked. The results of the above tests shall comply with the requirements of items b, d, and e in 5.2.5. b. Check the action of the normally open and normally closed contacts of the alarm, which should comply with requirement c in Article 5.2.5. Adjust the automatic audible alarm reset device of the video intrusion alarm, and use a stopwatch to measure the alarm time. The result should also comply with 5.2. Requirement d in Article 5.
d. Place the sound level meter (set with A weighting) 1m directly in front of the center of the audio device, so that the sample under test enters the alarm state. Observe and record the sound level, which should meet the requirements of a in Article 5.2.5. 6.3.7 Anti-vandal alarm test
a: Insert a switch (closed state) into the power cord of the camera sample under test, and when the switch is turned off; b. Insert a switch (closed state) into the video transmission cable of the camera sample under test. When the switch is disconnected; when the above two situations a and b occur respectively, the video intrusion alarm shall issue an alarm indication and be able to Keep it until the cause is eliminated before manually resetting
The test results should meet the requirements of 5.2.6. 6.3.8 Self-checking function test
Conduct self-checking function test according to the product standards and shall meet the requirements of Article 5.2.7. 6.4 Stability test
Cover the "video invariant area" of the video simulation intrusion signal generator with the warning area of ??the video intrusion alarm, and use an intrusion rectangular signal that meets the requirements of Article 6.3.5 in any direction. Scan and make the video intrusion alarm continuously powered on for 168 hours. The video intrusion alarm shall comply with the requirements of Article 5.3. During the above test time, the "video unchanged area" is moved out of the monitor screen every 12 hours and an intrusion check is performed. The test results should meet the requirements of Article 5.3. For multi-channel video intrusion alarms, each channel should be connected to a video simulation intrusion generator and tested according to the above method. 6.5 Power supply voltage adaptability range test
Use a voltmeter with an accuracy of 0.5 level and a range 1.5 times the power supply voltage to monitor, and conduct the test in the order of 220V, 187V, and 242V. Each test time shall not be less than 15 minutes, and shall comply with 5.4 requirements. 6.6 Environmental adaptability test
During the environmental adaptability test, the test sample should not be added with any protective packaging. When changing the temperature during the test, the heating and cooling rates shall not exceed 1°C/min.
6.6.1 Low temperature test
GB 15207 --94
Carry out according to the provisions of "Test Ab\" in GB2423.1. When the temperature in the box drops to the value specified in Table 1 After maintaining the temperature for 2 hours, turn on the power immediately and check the alarm function. It should meet the requirements of 5.2.5. 6.6.2 Low temperature storage test | After the internal temperature drops to the value specified in Table 1, after 16 hours of constant temperature, the test sample is returned to normal temperature in the box and then taken out. After returning to normal atmospheric conditions for 2 hours, power on to check the alarm function, which should meet the requirements of Article 5.2.5. 6.6.3 High temperature test
shall be carried out according to the provisions of *Test Bb" in GB2423.2. Turn on the power supply and put the sample under test into the high-temperature box. When the temperature in the box rises to the specified value in Table 1, after 2 hours of constant temperature, the alarm function is checked and it should meet the requirements of 5.2.5. And no false alarms occurred during the high temperature test.
6.6.4 Constant mixing heat test
Put the test sample (power off) into the hot and humid box, raise the temperature in the box to 40±2℃, and then increase the humidity to 933 %, start timing after balancing. After maintaining this value for 48 hours, power on the box to check that the alarm function should work normally. Measure the insulation resistance and electrical strength immediately after taking it out of the box. Then, after the sample is restored to normal atmospheric conditions for 2 hours, check the surface coating and alarm function. They should all meet the requirements of 5.1.1, 5.2.5, 5.7.2 and 5.7.4. 6.6.5 Vibration test
Carry out the test according to the method specified in Article 6.4.5 of GB12663. After the test, check the appearance and alarm function, which shall meet the requirements of Articles 5.1.1, 5.2.5 and 5.5.2.
6.6.6 Impact test
Carry out the test according to the method specified in Article 6.4.6 of GB12663. After the test, check the appearance and alarm function, which should comply with 5.1.1, 5.2.5 and 5.5.2 Article requirements.
6.6.7 Free drop test
Conduct the test according to the method specified in Article 6.4.7 of GB12663. After the test, check the appearance and alarm function, which should comply with Articles 5.1.15.2.5 and 5.5.2 requirements.
6.7 Anti-interference test
Connect the video simulation intrusion signal generator, video intrusion alarm, and monitor into an alarm system. The intrusion mode of the video simulation intrusion signal generator is set to "Single", the horizontal movement speed is set to 1w/s, 1/4w/s, 1/8w/s, and the vertical movement speed is set to 200H/s, 50H/s respectively. , 25H/s, make the video intrusion alarm in normal working condition, and conduct the following tests:
6.7.1 Electrostatic discharge sensitivity test
The tested sample shall be carried out according to the method specified in GB6833.3 Test, the results shall comply with the requirements of Article 5.6.1. 6.7.2 Power supply transient sensitivity test
The tested sample shall be tested according to the method specified in GB6833.4, and the results shall comply with the requirements of Article 5.6.1. 6.7.3 Radiation sensitivity test
The test sample shall be tested according to the method specified in GB6833.5, and the results shall comply with the requirements of Article 5.6.1. 6.7.4 Conductive sensitivity test
The test sample shall be tested according to the method specified in GB6833.6, and the results shall comply with the requirements of Article 5.6.1. 6.7.5 Slow change test of ambient illumination
Connect cameras, video intrusion alarms, and monitors into an alarm system. A variable standard light source light box equipped with a grayscale test card is used as the photographed scene. The light source illumination changes range is 570~1320lx. The camera lens adopts a manual standard lens (f16mm, 1:1.4), the distance between the lens and the test card is 0.5m, and the aperture is set to 16. The test is carried out according to the following sequence requirements of illumination and time changes. Under the condition that the video signal does not produce distortion, the video intrusion alarm system works continuously for 1 hour and there should be no false alarms. 638
Illumination change of the photographed scene (1x)
Time (min)
0
GB 1520794
570→1 320
→570
30 -+60
Note: During the test, the light source voltage changes from 142.5V to 165V at a constant speed within 30 minutes. The second 30min is the reverse process of the first (see Appendix A for details). When testing the illuminance, the grayscale test card should be removed, and the detection surface of the illuminance meter should be placed against the frosted glass of the light box. 6.8 Safety test
6.8.1 Outlet solidity test
The sample under test should be fixed in the normal position, and the tensile force should be gradually applied to the sample along the lead wire to the specified value, maintaining 60±2$. The appearance inspection after the test shall comply with the requirements of Article 5.7.1.
6.8.2 Insulation resistance test
Conduct the test according to the method specified in Article 6.8.1 of GB12663, and the results shall meet the requirements of Article 5.7.2. 6.8.3 Leakage current test
Carry out the test according to the method specified in Article 6.8.5 of GB12663, and the results shall comply with the requirements of Article 5.7.3. 6.8.4 Electrical strength test
The test sample is fed with an adjustable power supply with a power of not less than 500V·A and 50Hz between the power plug or power lead end and the exposed metal parts on the chassis. Voltage, the test voltage is increased to the specified value in Table 2 in Article 5.7.4 at a rate of 200V/min and maintained for 1 minute. The result shall meet the requirements of Article 5.7.4.
6.8.5 Flame retardant test
Conduct the test according to the method specified in Article 6.8.3 of GB12663, and the results shall meet the requirements of Article 5.7.5. 6.9 Reliability test
6.9.1 Test plan
The reliability test plan is in accordance with the test plan 6 of Article 4.2.1 of GB12322, the thermal stress is in accordance with Category II of Article 6.1.3, and the comprehensive environmental stress test The cycle shall be carried out in accordance with Article 6.3.1.
6.9.2 Test requirements
During the entire test process, the alarm function is measured once every 8 hours, each time lasting 5 minutes, and the tested sample is in an alert state during the rest of the time. The test time of each tested sample must be more than half of the average test time of all tested samples, otherwise the sample test will be invalid. 6.9.3 Failure judgment basis
The failure judgment basis of the video intrusion alarm refers to the classification item of A4 controller-related faults in Appendix A of GB12322. 7 Inspection Rules
7.1 General Provisions
Products must be inspected in accordance with these regulations and the supplementary regulations in the product label when finalizing (design finalization, production finalization) and during the production process, and shall comply with these regulations requirements. 7.2 Inspection classification
products should pass the following inspections:
a. Type testing;
b. Delivery inspection;
c. Routine inspection.
Various inspection items and sequences are as specified in Table 3, 639
Inspection items
Appearance inspection
Mechanical structure
Performance||tt| |Ability
Adaptive range of power supply voltage
Ambient light changes slowly
Power lead
Insulation resistance
Leakage current
Electric strength| |tt||low
temperature
low temperature storage
high
temperature
constant damp heat
vibration
rush| |tt||Motion
Strike
Free fall
Electromagnetic compatibility
Stability
Flame retardant requirements
Reliability||tt ||Technical requirements
5.1.1
5.1. 2
/ 5. 2
5.4
5. 6.2
5. 7.1
5.7.2
5.7.3
5.7.4
5.5.1
5.5.1
5.5.1| |tt||5.5.1
5.5.2
5.5.2
5.5. 2
5.6.1
5.3
5.7.5
5.8
Note: "" indicates the inspection items that should be carried out. 7.3 Type inspection
GB15207-94
Table 3
Test method
6.2.1
6. 2. 2~6. 2. 3| |tt||6.3
/6.5
6. 7.5
6.8.1
6.8.2
6.8.3
6.8 .4
6.6.1
6.6.2
6.6.3
6.6.4
6.6.5
6.6.6
6.6.7
6. 7. 1 ~ 6. 7. 4
6. 4
6.8.5
6.9||tt| |Type inspection
V
V
V
V
V
Delivery inspection
V||tt ||Routine inspection
V
Y
V
V
7.3.1 Products should pass the finalization inspection during design and production. . 7.3.2 The final inspection shall be carried out by the quality inspection department of the product manufacturing unit or the quality inspection unit designated or entrusted by the superior authority.
640
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