SJ 20704-1998 General specification for electrical system of armored reconnaissance vehicle
Some standard content:
Military standard of the People's Republic of China for the electronics industry FL9910
SJ 20704--1998
General specification for electric system of scout armored vehicle
1998-03-18 Release
1998-05-01 Implementation
Scope of approval of the Ministry of Electronics Industry of the People's Republic of China
2 Reference documents
Qualification appraisal
Appearance quality...
Product logo and code
Maintainability
Machine-environment system engineering
Safety
Interchangeability
Main tactical performance requirements
Distance for detecting and identifying targets
Micro air vehicle reconnaissance radius (camera range) Angle coordinate output accuracy
System coordinate distance accuracy
Time setting and output format
System software
Radio station transmission information
Microwave television transmission information
System delay
3.13 Main technical requirements|| tt||Intelligence collection equipment
Coordinate collection equipment
Time collection
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Intelligence processing equipment
Intelligence transmission equipment
Environmental requirements
Constant damp heat
Continuous working time
Electromagnetic compatibility
Reliability
Quality assurance regulations
Inspection responsibility
Inspection classification
Inspection conditions
Appraisal inspection
Quality consistency inspection
Inspection method
Delivery preparation
Notes
Intended use
Contents of order documents
(20)
1 Scope
General specification for the electrical system of armored reconnaissance vehicles of the People's Republic of China's electronic industry military standard
General specification for electric system of scout armored vehicle1.1 Subject content
SJ 20704—1998
This specification specifies the general requirements, quality assurance provisions and delivery standards for the electrical system of armored reconnaissance vehicles1.2 Scope of application
This specification applies to the design, production, inspection, packaging, transportation and storage of the electrical system of armored reconnaissance vehicles, and serves as the basic basis for formulating product specifications.
2 Reference documents
GB190—90 Dangerous goods packaging mark
Packaging storage and transportation pictorial mark
GB 19190
GB4728-85 Graphic symbols for electrical diagrams
GB4943—93 Information processing equipment safety
GB5465.2--85 Graphic symbols for electrical equipment GB/T14691--93 Technical drawing fonts
GJB 7--84 Microwave radiation safety limits
GJB59—89 Armored vehicle test procedures
GJB 74A
General specification for military ground radar
GJB145—86 General rules for sealed packaging
GJB150.16—86 Environmental test methods for military equipment Vibration test GJB150.18--86 Environmental test methods for military equipment Shock test GJB151A--97 Electromagnetic emission and sensitivity requirements for military equipment and subsystems GJB152A-97 Electromagnetic emission and sensitivity measurement for military equipment and subsystems GJB179A-96 Counting sample inspection procedures and tables GJB 282.1--87 Armored vehicle environmental conditions T. Operating ambient temperature GJB282.2-87 Armored vehicle environmental conditions Purchase and storage ambient temperature Ministry of Electronics Industry of the People's Republic of China 1998-03-18 Issued rkAoNKAca
1998-05-01 Implementation
SJ20704-1998
GJB368A-94 General specification for equipment maintainability GJB899--90 Reliability identification and acceptance test GJB1182-91 Protective package Packing and packaging level GJB1372--92 General specification for armored vehicles SJ3212-89 General technical conditions for transport packaging of electronic products SJ20365--93 General specification for low-voltage DC power supply SJ20705-98 Tactical performance test method of electrical system of armored reconnaissance vehicle "Standardization work regulations for the development of weapons and equipment" February 9, 1990 National Defense Science and Technology Commission 3 Requirements
3.1 Qualification appraisal
Products submitted in accordance with this specification and product specifications should be products that have been qualified or approved for finalization. 3.2 Design
3.2.1 Electrical and structural design shall be carried out in accordance with the requirements of this specification and the armored reconnaissance vehicle development task book (contract). 3.2.2 The "Standardization work regulations for the development of weapons and equipment" and the comprehensive requirements for armored reconnaissance vehicle design standardization shall be implemented, and the product design shall comply with the requirements of generalization, serialization, combination (modularization) and interchangeability: 3.2.3 Standard parts shall be used to the maximum extent possible during design, and the current national standards, national military standards and industry standards shall be strictly implemented.
3.2.4 The selection and use of materials shall comply with the requirements of Article 3.2.12 of GJB74A. 3.2.5 Unless otherwise specified, the selection of components and the design of parts shall comply with the requirements of Article 3.2.12 of GJB74A.
3.3 Appearance quality
3.3.1 The product surface shall be free of dents, bruises, cracks, deformation, etc. The coating shall not bubble, crack or fall off, and the color shall be consistent; metal parts shall not be rusted or mechanically damaged. 3.3.2 Switches, knobs, buttons, etc. shall be flexible and convenient to operate, and fasteners shall not be loose. 3.3.3 The text symbols and signs that describe the functions shall be clear, correct, clear, and in accordance with the standards. 3.4 Dimensions
The dimensions shall comply with the index requirements of the armored reconnaissance vehicle. 3.5 The weight shall comply with the index requirements of the armored reconnaissance vehicle. 3.6 Color
3.6.1 The selection of identification color shall comply with the provisions of Article 3.6 of GJB74A. 3.6.2 The color of the inner wall and panel of the vehicle compartment shall comply with the requirements of armored reconnaissance vehicles. 3.6.3 Unless otherwise specified: The equipment is sprayed with camouflage color on the outside, and other protective colors may also be applied according to the marching status and position layout.
3.7 Product logo and code
SJ 20704--1998
3.7.1 The logo and code shall comply with the provisions of Article 3.7 of GJB74A. The logo is generally in the form of a nameplate. When the use conditions do not allow the use of a nameplate, the corresponding methods such as engraving, embossing, etching, screen printing, etc. should be adopted, and coated with transparent paint.
3.7.2 The signs should be clear and permanent, the words and letters should comply with the provisions of GB/T14691, and the electrical graphic symbols should comply with the provisions of GB4728 and GB5465.2. The colors of the signs and symbols should be easy to read. 3.8 Maintainability
3.8.1 A three-level maintenance system should be adopted. The basic-level maintenance should have the fault self-detection capability of the product functional module and be able to locate the fault to the replaceable unit. The replaceable parts of the product should be accessible and removable. 3.8.2 The average repair time of the electrical system of the armored reconnaissance vehicle shall not exceed 30 minutes: 3.8.3 According to the characteristics of the product, the content, time, cycle and method of preventive maintenance should be specified in the product specifications. 3.9 Man-machine-environment system engineering
3.9.1 According to the convenience of operation and the complexity of maintenance work and equipment, the positions, division of labor and technical skills of operators should be clearly specified.
3.9.2 The working degree inside the armored reconnaissance vehicle shall comply with the requirements of Article 3.2.1.7 of GJB1372. 3.9.3 The noise inside the armored reconnaissance vehicle shall comply with the requirements of Article 3.2.1.4 of GJB1372. 3.9.4 It shall be equipped with simulation training equipment or have simulation training functions. 3.9.5 Other unspecified requirements shall be specified by the product specifications. 3.10 Safety
3.10.1 Carry out safety design through safety analysis. Select reasonable structural forms, components and materials, and design reasonable operating procedures to ensure the safety of personnel and equipment. 3.10.2 Signs should be marked and safety devices should be installed in obvious places of dangerous parts of the product, and this should be noted in the manual. 3.10.3 Microwave radiation safety requirements shall comply with the relevant provisions of GJB7. 3.10.4 The design and manufacture of information processing equipment shall meet the provisions of GB4943. 3.11 Interchangeability
After replacing the same devices, parts and modules, the product should be able to work normally without adjustment. After slight adjustment, it should be able to meet the electrical performance requirements. After the interchange of each unit module, the performance indicators of the product should meet the requirements. 3.12 Main tactical performance requirements
3.12.1 Target detection and identification distance
3.12.1.1 The distance at which the camera detects and identifies the target (see 4.6.11.1) The target detection distance of the camera should be based on the requirements of tactical indicators. For vehicle-mounted equipment, it should be 5 to 20 km, or as specified by the product specifications.
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The distance for identifying ear tags should be 3 to 5 km, or as specified by the product specifications. 3.12.1.2 The distance at which the thermal imager identifies the target (see 4.6.11.2) The distance at which the thermal imager identifies the target should be 3 to 5 km, or as specified by the product specifications. 3.12.2 Reconnaissance radius of micro-aircraft (imaging range) (see 4.6.11.3) The reconnaissance radius of micro-aircraft is:
a. Reconnaissance radius is less than or equal to 5km;
b. Reconnaissance radius is less than or equal to 20km
c. Reconnaissance radius is less than or equal to 50km.
Or as specified by product specifications.
3.12.3 Angle coordinate output accuracy
3.12.3.1 The angle sensor (see 4.6.11.4) should clearly define its measurement range and accuracy for the azimuth and elevation of the target. The angle sensor should require the uniqueness of the output signal corresponding to the angle value (within 0°～360°). The electrical interface characteristics should be clear and accurate. 3.12.3.2 System azimuth accuracy (see 4.6.11.5) System azimuth accuracy shall be:
a. Azimuth accuracy is less than 2 mils;
b. Azimuth accuracy is less than or equal to 5 mils; c. Azimuth accuracy is less than or equal to 10 mils. Or as specified by product specifications.
3.12.3.3 System elevation accuracy (now 4.6.11.6) System elevation accuracy shall be:
a. Elevation accuracy is less than or equal to 5 mils
b. Elevation accuracy is less than or equal to 10 mils; c. No requirement.
Or as specified by product specifications.
3.12.3.4 Inertial Navigation (INS) System Orientation Accuracy (See 4.6.11.7) 3.12.3.4.1 North-finding Accuracy
North-finding accuracy shall be:
a. North-finding accuracy is less than or equal to 1 mil; b. North-finding accuracy is less than or equal to 3 mils. 3.12.3.4.2 North-finding Time
North-finding time is related to the accuracy of north-finding. Under the condition of accuracy requirement of 1 to 3 mils, it can be set to 3 to 7 minutes, or specified by product specifications.
SJ 20704--1998
3.12.4 System Coordinate Distance Accuracy (See 4.6.11.8) System Coordinate Distance Accuracy shall be:
a. Distance accuracy is less than or equal to 10 m;
b. Distance accuracy is less than or equal to 30 m.
Or specified by product specifications.
The coordinate output format adopts the Beijing 1954 coordinate system. 3.12.4.1 Laser ranging range and accuracy (see 4.6.11.9) Because it is used for ground vehicles, the laser ranging range is about 0.3 to 20km. The ranging accuracy is meter level. Specific requirements are specified by product specifications.
3.12.4.2 Positioning accuracy of global satellite positioning system (GPS) receiver (see 4.6.11.10) The positioning accuracy of GPS receiver shall be:
a. Positioning accuracy: 100 m (CEP), when there is SA policy; b. Positioning accuracy: 30 m (CEP), when there is no SA policy; c. Differential positioning accuracy 2~10 m (CEP), 3.12.4.3 Positioning accuracy of inertial navigation (INS) system (see 4.6.11.11) The positioning accuracy of inertial navigation (INS) system shall be: a. When calibrated within the specified time interval, under the conditions of specified driving road surface and mileage, the positioning accuracy shall be 0.1%~0.2% of the driving range;
b. When no calibration is performed, under the conditions of specified road surface, mileage and driving speed, the positioning accuracy shall be 0.2%~1%. 3.12.5 Time binding and output format (see 4.6.11.12) Time reference is usually input into the computer by human T. The camera automatically adds time information. The format adopts 24-hour system, and the output content is year, month, day, hour, minute and second. 3.12.6 System software (see 4.6.11.13) System software requires a friendly human-computer interface, Chinese character prompts, and simple and easy operation. At the same time, it should have fault tolerance measures to ensure that the system operation is not damaged in the event of misoperation: In addition, it should also be expandable to facilitate continuous upgrading. 3.12.6.1 Capture (freeze) the input color/black and white video images, which can be done automatically or manually. 3.12.6.2 Digital recording and storage of intelligence: When storing with a computer, the number of frames of the storage medium (such as a hard disk) for storing static images should be specified. The specific requirements are specified by the product specifications. 3.12.6.3 The function of the computer to process self-labeled graphic information is to transform and control the brightness and contrast of the input video signal. It is specified whether there is coding compression capability. If yes, the compression ratio is usually selected between 4 and 100. The computer should also have the function of encrypting and superimposing supplementary information on the standard information. The details are specified by the product specifications.
3.12.6.4 The ability of the computer to input and output graphic information: In addition to receiving the video signal of the camera and displaying graphic information5
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, the computer should also be able to receive the information input by the fax machine and copy it out. The configuration of other peripheral systems is specified by the product specifications.
3.12.7 Radio station transmission information (see 4.6.11.14) 3.12.7.1 In addition to talking, the radio station should be able to transmit data and images, but voice communication should be given priority. 3.12.7.2 During data communication, the source should be protected by error correction. The entire channel communication should have error detection means, the communication rate should be high, and confidentiality, frequency hopping and other measures should be taken. The data communication distance shall not be less than 80% of the plain language communication distance, and the success rate shall not be less than 70%. Or as specified by the product specification. 3.12.7.3 The fax machine shall be able to form a wireless fax, and the fax distance shall not be less than 80% of the plain language communication distance, and the success rate shall not be less than 70%: or as specified by the product specification. 3.12.8 Microwave radio transmission intelligence (see 4.6.11, 15) shall be able to transmit color images and accompanying sounds, with a one-way transmission distance greater than 10~20km, and a relay transmission distance of up to 20~40km
or as specified by the product specification.
3.12.9 System delay (see 4.6.11.16) The system delay shall be small, and the specific requirements shall be specified by the product specification. 3.13 Main technical requirements
3.13.1 Intelligence collection equipment.
3.13.1.1 Camera (see 4.6.12.1) 3.13.1.1.1 The output signal shall be 1Vp-p. 3.13.1.1.2 The time of continuous video recording shall be specified by the product specification. 3.13.1.2 Thermal imager (see 4.6.12.2) 3.13.1.2.1 The minimum recognizable temperature difference
shall be specified by the product specification.
3.13.1.2.2 Cooling method
shall be specified by the product specification.
3.13.1.2.3 Continuous working time
shall be specified by the product specification.
3.13.1.3 Micro-aircraft (see 4.6.12.3) 3.13.1.3.1 System compatibility
The composition of the aircraft's onboard equipment and ground supporting equipment when completing the specified tactical reconnaissance function shall be clearly specified by the product specification.
3.13.1.3.2 Take-off weight and mission load The take-off weight of the vehicle-mounted micro-aircraft is 5~30kg, and the mission load is 1~5kg6-
3.13.1.3.3 Endurance time
Specified by the product specification.
3.3.1.3.4 Wind resistance
SJ 20704—1998
Should be able to complete various tactical performances under weather conditions not exceeding level 4 winds: 3.13.1.3.5 Take-off method
It can be taken off by hand, or specified by the product specification. 3.13.1.3.6 Target image positioning function
In principle, the captured image should have location information in addition to time. Whether it has this function is specified by the product specification. 3.13.t.3.7 Simulator trainer
It should have a ground simulator trainer. The specific requirements are specified by the product specification. 3.13.1.4 Individual reconnaissance operation system (see 4.6.12.4) 3.13.1.4.1 Equipment
When a soldier conducts reconnaissance, he should be equipped with a television camera, paper, pen, and microwave television transmitter, etc. The specific equipment types and quantities are specified by the product specifications.
3.13.1.4.2 Reconnaissance range
It is determined by the soldier's physical strength, the performance of the equipment he carries, the terrain, objects, and meteorological conditions. Generally, it does not exceed 5 km, or it is specified by the product specifications.
3.13.1.4.3 Reconnaissance time
It is necessary to ensure that the soldier has sufficient physical strength and power supply to perform the reconnaissance mission. It is usually advisable to work continuously for 2 to 3 hours. The specific indicators are specified by the product specifications. 3.13.1.5 Other reconnaissance equipment
In addition to the above-mentioned reconnaissance means, various other sensors can also be used to collect intelligence, such as sound sensors, vibration sensors, etc. The specific requirements are specified by the product specifications. 3.13.2 Coordinate acquisition equipment
3.13.2.1 Laser rangefinder (see 4.6.12.5) 3.13.2.1.1 Distance resolution, angular resolution Angular resolution is determined by the width of the laser beam, generally in the order of milliradians: Distance resolution is determined by the main grip frequency, generally in the order of meters.
3.13.2.1.2 Safety
Laser should be selected as a frequency band that does not hurt people or take safety protection measures. 3.13.2.2 Global Positioning System (GPS) receiver (see 4.6.12.6) shall specify the use of C/A code, six-channel or more receivers, and indicate whether it has differential positioning function. 3.13.2.3 Inertial Navigation (INS) System (see 4.6.12.7) 7
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3.13.2.3.1 Orientation accuracy and time
SJ20704-1998
The north-finding accuracy and time shall be specified by the product specification. 3.13.2.3.2 Positioning accuracy
The positioning accuracy with or without zero calibration shall be specified by the product specification. 3. 13.2. 3. 3 Other functions
Whether it includes receiving the self-marking azimuth and distance information, calculating the target coordinate value in combination with the carrier mark solution, displaying, drawing and self-checking the target or carrier coordinates, etc., shall be specified by the product specification. 3.13.3 Time acquisition (see 4.6.12.8 and 4.6.12.9) 3.13.3.1 Time acquisition is automatically performed by a computer. 3.13.3.2 A video camera with a time stamp function automatically completes the acquisition during recording. 3.13.4 Intelligence processing equipment
3. 13.4. 1 Video recorder (4.6.12.10) A video recorder with more powerful functions should be used to store the captured images (videotape). There should be requirements for the capacity of the videotape. Higher functional requirements should also include the requirement that the video recorder has a simple editing function. The specific requirements shall be specified by the product specifications. 3. 13. 4.2 Computer (4.6.12.11) The hardware and software platform that meets the system operation should be configured. The basic configuration, memory size, clock speed, operating system, etc. should be specified.
3.13.5 Intelligence transmission equipment
3. 13.5. 1 Radio (see 4.6.12.12) should be equipped with frequency hopping electronic countermeasures and encryption functions, and have a data communication adapter to achieve data communication.
3.13.5.2* Fax machine (see 4.6.12.13) should be a G3 fax machine (military), or as specified by the product specification. 3.13.5.3 Microwave television transmission equipment (see 4.6.12.14) 3.13.5.3.1 Working frequency band
The frequency band approved by the Radio Management Committee of the Chinese People's Liberation Army should be selected. 3.13.5.3.2 Transmitting power
The power of the vehicle-mounted small transmitter is 0.5~10W, or as specified by the product specification. 3.13.5.3.3 Receiver sensitivity
Small receiver channel is 90dBm or as specified in the product specification. 3.13.5.3.4 Antenna gain, directivity
Omnidirectional and directional antennas are used in different occasions. Directional antenna gain is 10~15dB. Directivity of directional antenna is 30°～60° or as specified in the product specification. 8
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3.13.5.4 Micro-aircraft transmits intelligence (see 4.6.12.15) Micro-aircraft is used as a carrier to transport information (videotapes, information, recording paper, etc.) weighing less than 1kg back to the information receiving unit. Under good weather conditions, it should be able to transmit 5~70 kml, and the route shortcut should be within the visual range (about 150m) to facilitate the recovery of information. Specific requirements are specified in the product specification. 3.13.6 Power supply (see 4.6.12.16) 3.13.6.1 System AC power supply
Unidirectional, 50Hz, 220V sine wave AC power supply, or as specified by product specifications. The frequency, voltage change and voltage waveform distortion of the AC power supply are as follows: a. Frequency change should not be greater than ±2% of the rated value; b. Voltage change should not be greater than ±10% of the rated value; c. Voltage waveform distortion should be less than 10%.
3.13.6.2 System DC power supply bzxz.net
Power supply voltage: 26±4V.
3.13.6.3 DC regulated power supply
DC regulated power supply for electronic equipment should comply with the provisions of SJ20365 and meet the product standard requirements. 3.13.6.4 Inverter
Specified by product specifications. Its output characteristics meet the system power supply requirements. 3.14 Environmental requirements
3.14.1 High temperature
Operating temperature: Should meet the requirements of GB282.1 or specified by the product specification, storage temperature; Should meet the requirements of GJB282.2. 3.14.2 Steady heat
Relative humidity: 95%:
Temperature: 30~35°C.
Time is specified by the product specification,
3.14.3 Low temperature
_L Operating temperature: Should meet the requirements of GB282.1. Storage temperature; Should meet the requirements of GJB282.2. Or specified by the product specification.
3. 14.4 Shock
According to the requirements of the half-sine impulse waveform test of the basic design test of test 5 in GJB150.18, the peak acceleration is 30g and the duration is 11ms. Or specified by the product specification. 3.14.5 Vibration
TKAONKAca10) A powerful video recorder should be used to store the captured images (videotape). There should be requirements for the capacity of the videotape. Higher functional requirements should also include the requirement that the video recorder has a simple editing function. The specific requirements shall be specified by the product specifications. 3. 13. 4.2 Computer (4.6.12.11) The software and hardware platform that meets the system operation should be configured. The basic configuration, memory size, clock speed, operating system, etc. should be specified.
3.13.5 Intelligence transmission equipment
3. 13.5. 1 Radio (see 4.6.12.12) Radio with frequency hopping electronic countermeasures and encryption function should be selected, and data communication adapters should be used to realize data communication.
3.13.5.2* Fax machine (see 4.6.12.13) G3 fax machine (military) should be selected, or specified by the product specifications. 3.13.5.3 Microwave TV transmission equipment (see 4.6.12.14) 3.13.5.3.1 Working frequency band
The frequency band approved by the Radio Management Committee of the People's Liberation Army of China should be selected. 3.13.5.3.2 Transmitting power
The power of the small vehicle-mounted transmitter is 0.5~10W, or as specified by the product specification. 3.13.5.3.3 Receiver sensitivity
The small receiver channel is 90dBm or as specified by the product specification. 3.13.5.3.4 Antenna gain and directivity
Omnidirectional and directional antennas are used in different occasions. The gain of directional antennas is 10~15dB. The directivity of directional antennas is 30°~60°, or as specified by the product specification. 8
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3.13.5.4 Micro-aircraft transmission of intelligence (see 4.6.12.15) Micro-aircraft is used as a carrier to transport information (videotapes, information, recording paper, etc.) weighing less than 1kg back to the information receiving unit. Under good weather conditions, it should be able to transmit 5 to 70 kml, and the route shortcut should be within the visual range (about 150m) to facilitate the recovery of information. Specific requirements are specified by the product specifications. 3.13.6 Power supply (see 4.6.12.16) 3.13.6.1 System AC power supply
Unidirectional, 50Hz, 220V sine wave AC power supply, or specified by the product specifications. The frequency, voltage change and voltage waveform distortion of the AC power supply are as follows: a. The frequency change should not be greater than ±2% of the rated value; b. The voltage change should not be less than ±10% of the rated value; c. The voltage waveform distortion should be less than 10%.
3.13.6.2 System DC power supply
Power supply voltage: 26±4V.
3.13.6.3 DC regulated power supply
The DC regulated power supply for electronic equipment shall comply with the provisions of SJ20365 and meet the product specification requirements. 3.13.6.4 Inverter
Specified by the product specification. Its output characteristics meet the system power supply requirements. 3.14 Environmental requirements
3.14.1 High temperature
Operating temperature: It shall comply with the requirements of GJB282.1, or specified by the product specification, storage temperature; It shall comply with the requirements of GJB282.2. 3.14.2 Constant humidity
Relevant humidity: 95%:
Temperature: 30~35°℃.
Time is specified by the product specification.
3.14.3 Low full
_L Operating temperature: shall meet the requirements of GB282.1. Storage temperature; shall meet the requirements of GJB282.2. Or specified by the product specification.
3. 14.4 Shock
According to the requirements of the half-sine impulse waveform test of the basic design test of test 5 in GJB150.18, the peak acceleration is 30g and the duration is 11ms. Or specified by the product specification. 3.14.5 Vibration
TKAONKAca10) A powerful video recorder should be used to store the captured images (videotape). There should be requirements for the capacity of the videotape. Higher functional requirements should also include the requirement that the video recorder has a simple editing function. The specific requirements shall be specified by the product specifications. 3. 13. 4.2 Computer (4.6.12.11) The software and hardware platform that meets the system operation should be configured. The basic configuration, memory size, clock speed, operating system, etc. should be specified.
3.13.5 Intelligence transmission equipment
3. 13.5. 1 Radio (see 4.6.12.12) Radio with frequency hopping electronic countermeasures and encryption function should be selected, and data communication adapters should be used to realize data communication.
3.13.5.2* Fax machine (see 4.6.12.13) G3 fax machine (military) should be selected, or specified by the product specifications. 3.13.5.3 Microwave TV transmission equipment (see 4.6.12.14) 3.13.5.3.1 Working frequency band
The frequency band approved by the Radio Management Committee of the People's Liberation Army of China should be selected. 3.13.5.3.2 Transmitting power
The power of the small vehicle-mounted transmitter is 0.5~10W, or as specified by the product specification. 3.13.5.3.3 Receiver sensitivity
The small receiver channel is 90dBm or as specified by the product specification. 3.13.5.3.4 Antenna gain and directivity
Omnidirectional and directional antennas are used in different occasions. The gain of directional antennas is 10~15dB. The directivity of directional antennas is 30°~60°, or as specified by the product specification. 8
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3.13.5.4 Micro-aircraft transmission of intelligence (see 4.6.12.15) Micro-aircraft is used as a carrier to transport information (videotapes, information, recording paper, etc.) weighing less than 1kg back to the information receiving unit. Under good weather conditions, it should be able to transmit 5 to 70 kml, and the route shortcut should be within the visual range (about 150m) to facilitate the recovery of information. Specific requirements are specified by the product specifications. 3.13.6 Power supply (see 4.6.12.16) 3.13.6.1 System AC power supply
Unidirectional, 50Hz, 220V sine wave AC power supply, or specified by the product specifications. The frequency, voltage change and voltage waveform distortion of the AC power supply are as follows: a. The frequency change should not be greater than ±2% of the rated value; b. The voltage change should not be less than ±10% of the rated value; c. The voltage waveform distortion should be less than 10%.
3.13.6.2 System DC power supply
Power supply voltage: 26±4V.
3.13.6.3 DC regulated power supply
The DC regulated power supply for electronic equipment shall comply with the provisions of SJ20365 and meet the product specification requirements. 3.13.6.4 Inverter
Specified by the product specification. Its output characteristics meet the system power supply requirements. 3.14 Environmental requirements
3.14.1 High temperature
Operating temperature: It shall comply with the requirements of GJB282.1, or specified by the product specification, storage temperature; It shall comply with the requirements of GJB282.2. 3.14.2 Constant humidity
Relevant humidity: 95%:
Temperature: 30~35°℃.
Time is specified by the product specification.
3.14.3 Low full
_L Operating temperature: shall meet the requirements of GB282.1. Storage temperature; shall meet the requirements of GJB282.2. Or specified by the product specification.
3. 14.4 Shock
According to the requirements of the half-sine impulse waveform test of the basic design test of test 5 in GJB150.18, the peak acceleration is 30g and the duration is 11ms. Or specified by the product specification. 3.14.5 Vibration
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