GB/T 9392-1988 General technical requirements for marine satellite/Omega integrated navigators
Some standard content:
National Standard of the People's Republic of China
GB/T 9392-1988
General specification for marinesatellite-omega integrated navigator
General specification for marinesatellite-omega integrated navigator Issued on April 15, 1988
Implementation on December 1, 1988
Ministry of Electronics Industry of the People's Republic of China
W1 Introduction
National Standard of the People's Republic of China
General specification for marinesatellite-omega integrated navigator
General specification for marinesatellite-omega integrated navigator 1.1 Subject matter and scope of application
CB/T 9392—1988
This standard specifies the general technical performance, test methods, acceptance rules and marking, packaging, transportation and storage requirements of "marine satellite/omega combined navigator";
This standard is applicable to "marine satellite/omega combined navigator" (hereinafter referred to as equipment) and is the basis for formulating product standards: 1.2 Equipment composition and classification
t.2.1 Components
This equipment consists of a meridian satellite navigation receiver, an Omega navigation receiver, a navigation/speed input, a navigation data output interface and an antenna, and is divided into two parts: inside and outside the cabin.
1.2.2 Classification
a: dual-channel satellite navigation receiver, single-channel Omega navigation receiver, heading/speed input, navigation data input interface and antenna combination navigator;
b: single-channel satellite navigation receiver, single-channel Omega navigation receiver, heading/speed input, navigation data output interface and antenna combination navigator#
. Dual-channel satellite navigation receiver, multi-channel Omega navigation receiver, heading/speed input, navigation data input interface and antenna combination navigator:
d: single-channel satellite navigation receiver, multi-channel Omega navigation receiver, heading/speed input, navigation data output interface and antenna combination navigator.
1.3 Reference standards
GB1038 Technical conditions for transport packaging of marine navigation instruments GB5080.1 General requirements for equipment reliability test GB5080.? Equipment reliability test test cycle design guide GB 5080.1 Equipment reliability test Reliability determination test point estimation and area estimation GB 5080.5 Equipment feasibility test success rate verification test plan GB 5080.6 Equipment reliability test Constant failure rate assumption validation GB 5080.7 Equipment reliability test fire efficiency and mean time between failures under constant failure rate assumption Test plan GB6992 GB6993 Reliability and maintainability socket guide Reliability procedures for system and equipment development and production Approved by the Ministry of Electronics Industry of the People's Republic of China on April 15, 1988 and implemented on December 1, 1988 W.bzsosocom2 Terminology 2. 1 Effective satellite positioning GB/T 9392—1988
Within the specified range of satellite elevation angles, the satellite navigation receiver can achieve automatic updated positioning. 2.2 Steering course
Provide the ship with a compass course approximately reaching the H mark position. 2.3 Waypoint
Navigation mark points set on the route.
Constant bearing line navigation (rhumb line navigation)
Navigation with constant navigation bearing.
2.5 Great circle navigation
Navigation along the great circle line between two waypoints. 3 Technical requirements
3. 1 General technical requirements
3. 1. 1 Performance requirements
3.1.1.1 Requirements for equipment automation, low power consumption, long life, and convenient operation and maintenance. 3.1.1.2 The equipment shall use a microprocessor or digital display, and can be operated in various ways by function codes or function keys. 3.1.1.3 The equipment shall have a white detection function. 3.1.1.4 The equipment shall be able to receive signals and perform position adjustment 15 minutes after startup. 3.1.1.5 The supplier shall provide a complete set of technical documents for installation, operation, maintenance and repair. 3.1.2 Environmental requirements
3.1.2.1 Temperature
Equipment inside the cabin: -10~+55℃
Equipment outside the cabin: -25～+70℃
In the above temperature environment, the equipment shall be able to operate normally. 3.1.2.2 Wet and hot
The equipment should be able to work continuously or gradually in an environment with a temperature of 40±3℃ and a relative humidity of 9.%~95%. 3.1.2.3 Salt spray
The equipment should have the ability to resist salt spray corrosion. 3.1.2.4 Mold
The equipment should have the ability to resist mold corrosion. 3.1.2.5 Waterproof
The outer shell of the extravehicular equipment should have the ability to prevent water from escaping into the equipment when it is splashed by waves. 3.1.2.6 Dismantling
The equipment should be able to work normally and keep its structure intact when it is subjected to various vibration environments that may be encountered on board. 3.1.3 Electric tide requirements
3.1.3.1 The equipment should be powered by the universal power supply on board and can work normally under power fluctuation conditions. AC power supply, voltage: 110V or 220V (±10%), frequency: 50Hz or 60Hz (±6%)
DC power supply voltage: 24V
Battery voltage: 24V
—20~B
WGB/T 9392—1988
3.1.3.2 The equipment should be equipped with emergency batteries, which should be able to automatically connect to the surface and continue to work when the power supply (3.1.3.1) is cut off. The emergency battery should be able to supply power continuously for no less than 10min. Each pair of batteries should have charging capacity. 3.1.3.3 The equipment should be equipped with protection devices for overcurrent, overvoltage, power transient and accidental polarity reverse connection. 3.1.4 Dielectric strength and insulation resistance
3. 1. 4. 1 Dielectric strength
a. When the rated voltage is less than or equal to 60V, the power input terminal of the equipment shall be subjected to 500V AC for 1min of dielectric strength test, and no breakdown or arcing shall occur; b. When the rated voltage is greater than 60V, the power input terminal of the equipment and the housing shall be subjected to 2000V AC for 1min of dielectric strength test, and no breakdown or arcing shall occur. 3.1.4.2 Insulation resistance
a. When the rated voltage is less than or equal to 65V, the insulation resistance between the power input terminal of the equipment and the housing shall be not less than 10M2 b. When the rated voltage is greater than 65V, the insulation resistance between the power input terminal of the equipment and the housing shall be not less than 100M2. 3.1.5 Safety requirements
3.7.5.1 All easily accessible parts with operating voltage exceeding 50V shall be protected. 3.7.5.2 Safety signs shall be set wherever there are safety requirements. 31.5.3 The equipment housing should be grounded, but it should not cause any point of the power supply to be grounded. 3.1.5.4 The power protection system should meet the requirements of 3.1.3.3 of this standard. 3.1.5.5 Measures should be taken to prevent the equipment from being damaged by no auxiliary input for more than 5 minutes due to circuit or grounding. 3.1.5.6 Measures should be taken to prevent the equipment from being damaged by instantaneous overvoltage (such as overvoltage caused by lightning on the antenna or the input end of the receiver). 3.1.5.7 The peak power of the mechanical media of the equipment measured at 1m away from the equipment should not exceed 65dB(A). 3.1.6 Requirements for disassembly and maintainability
The equipment system shall be designed and produced in two stages, and the quantitative mobile terminal performance index (MTBF) and maintainability index (MTTR) shall be specified.
The reliability and maintainability shall be carried out in accordance with the provisions of GB 6992 and GB 6993. 3.1.7 Electromagnetic compatibility requirements
3.1.7.1 Measures should be taken to ensure that the equipment can operate normally under normal electromagnetic environment conditions on board. 3.1.7.2 Measures should be taken to ensure that the equipment does not cause harmful interference to other equipment on board. 3.1.7.3 The minimum safe trip distance between each part of the equipment (except the main line and the amplifier) and the compass installed on board should be indicated in the product standard.
3.1.8 Structural requirements
31.8.1. The structural design of the equipment shall adopt advanced technology, strive for small size and light weight, and ensure that the equipment can be safely used under the specified environmental conditions.
: The equipment shall have anti-vibration buffer measures; Www.bzxZ.net
h. According to the maintainability requirements of the equipment, the components shall be reasonably selected and the thermal design shall be reasonably carried out to ensure that all parts of the equipment can operate within the allowable operating temperature range;
e. The protection type outside the equipment shall be adapted to the installation and use site; The equipment shall be treated with moisture-proof, mildew-proof and salt spray-proof. 3.1.8.2 All operating controllers shall be of appropriate size, reasonable layout, easy to adjust, and the possibility of accidental misoperation shall be reduced to a minimum.
The equipment shall be arranged as much as possible according to the functional model The module design should make the important parts, components, wiring and contacts of the whole unit easy to access for easy inspection, adjustment, installation and maintenance.
3.1.8.3 The scale, product label, control, detection, information display device, input and small parts should have durable markings in accordance with the circle paper. The specific details of the power supply of the equipment should also be marked in appropriate places. 3
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3.1.8.4 The lighting devices on the surface should have sufficient shell and necessary shading measures, should not be dazzling and can be adjusted. 3.1.8.5 The surface of the equipment should not have obvious dents, scratches, cracks, deformations, etc. The surface coating should not bubble, crack or fall off; metal parts should not have rust and other mechanical damage.
3.2 Main technical performance requirements of the equipment
3.2.1 [Display navigation receiver
3.2.1.1 Receiving frequency
a. Single-channel receiver: Receive the phase-modulated signal of 399.968MHz transmitted by the meridian satellite; b. Dual-channel receiver: Receive the phase-modulated signal of 399.968MHz and 149.988MHz transmitted by the meridian satellite.
3.2.1.2 Hopping sensitivity
Tracking sensitivity of the receiver:—1 45dBm (including preamplifier). 3.2.1.3 Selectivity: a. The 3dB bandwidth of receiving 399.968MHz frequency signal should not exceed ±4MHz; b. The 3dB bandwidth of receiving 149.98%MHz frequency signal should not exceed ±1.5MHz; e. The suppression degree of receiving signals other than 399.968±40MHz should be greater than 60dB, and the suppression degree of receiving signals other than 149.988±15MHz should be greater than 60dB. 3.2.1.4 Signal acquisition method: The receiver should be able to capture satellite signals automatically or according to program control. 3.2.1.5 The receiving range of the satellite navigation signal can be fully and comprehensively received. 3.2.1.6 The elevation angle range of the receiving positioning: When the elevation angle of the satellite passing is within the range of 7°~70°, the positioning update should be possible. 3. 2. 1.7 Positioning accuracy
4. Positioning error of single-channel receiver
Positioning accuracy (RMS): 0.1nmile (excluding the 0.2nmile error caused by the speed error of each knot); b. Positioning accuracy of dual-channel receiver
Positioning accuracy (RMS): 0.03nmile (excluding the D.2nmile error caused by the speed error of each knot). 3. 2. 1. 8 Satellite anomaly prediction
The equipment should have the function of predicting the time, elevation angle and star sign of future satellite rise. 3.2.2 Omega navigation receiver
3.2.2.1 Receiving frequency
. Single channel receiver: Receive the 10.2kHz signal transmitted by the Omega transmitter; b, Multi-channel receiver: Receive two or more signals from the 10.20, 11.05, 11.33 and 13.60kHz frequencies transmitted by the Omega transmitter according to the elimination of multiplicity. 3.2.2.2 Station selection
Should be capable! The station or station group can be selected automatically by the or gate to maximize the signal quality. When it is in the automatic mode, the ability to select the station should be maintained.
3.2.2.3 The receiver can be synchronized with the signal format transmitted by the omega by the positive or manual mode: but in any case, the synchronization can be calibrated.
3.2.2.4 Preset to eliminate ambiguity
After inputting the initial position allowed by the single-channel or multi-frequency receiver, it should be able to eliminate ambiguity automatically. 3.2.2.5 Sensitivity
WGB/T9392—1988
When the input bandwidth is 1 kIIz and the signal-to-noise ratio is -25 dB When measuring the phase of an omega station, it is required that 95% of the measured values are within ±7% of the phase cycle of its average value or within ±7% of the phase cycle of the measured value under high signal-to-noise ratio. The input signal field strength should not be less than 5t/m.
3.2.2.6 Selectivity
a. The 3dB bandwidth of receiving each omega frequency signal should not exceed 125Hz of the received frequency; b. The signal suppression degree outside the received omega frequency ±500Hz should be greater than 60dB3.2.2.7 Receiving antenna
The receiving antenna should be able to receive omega signals in all directions and at all times. 3.2.2.8 Signal field range
The field strength range of the received omega signal: 5uV/m~100mV/m. 3.2.2.9 The number of processing omega stations should be able to process information from at least four omega transmitting stations at the same time. 3.2. 2.10 Positioning accuracy
Positioning accuracy (RMS). 3nmile.
3.23 Integrated navigation performance
3.2. 3.1 Heading and speed input
The heading and speed information from the compass and speed log are automatically received through the interface device. There should also be a function for manual input of heading and speed information.
3. 2. 3. 2 Dead Reckoning
Assume that each receiver can automatically and continuously calculate the ship's position. There are three methods of dead reckoning: a. Dead reckoning based on the entered course, speed and manually input velocity and current; b. Dead reckoning based on the input course, speed and velocity and current calculated by satellite positioning; c. Dead reckoning based on the input course, speed and velocity and current calculated by the Omega positioning meter. 32.3.3 Great Circle Navigation and Equal Bearing Line Navigation a. Input a number of waypoints, and use the great circle or equal bearing line method to navigate, and calculate the distance, direction and maneuvering direction to these waypoints:
b. As long as one of the satellite navigation receivers and the Omega navigation receiver can work properly, the navigation function of the great circle or equal bearing line should be completed.
3.2.4 Display
3. 2. 4. 1 Fetal position display
The ship's position in the following situations is displayed in longitude and latitude. The values of longitude and latitude are in degrees, minutes and hundredths of minutes, and are marked as south or north latitude, east longitude or west longitude.
8. b. The new ship position after the satellite passes by. c. The ship position calculated by Omega positioning. 3.2.4.2 Other information can be displayed. · It should be able to display Greenwich Mean Time, speed, course, speed and current direction. b. It should be able to display the time of ship position calculation. c. When navigating by circular or azimuth line, it should be able to display the distance, azimuth and steering course to a certain waypoint. d. Display the Greenwich Mean Time, elevation angle, star sign, etc. of the next satellite pass. e: Display the detection status. f. Display the received satellite signal strength. Whether the Omega signal information quality is sufficient for the receiver to use for positioning. 3.2.5 Alarm. 3.2.5.1 Fault alarm. GB/T 9392—1988
a. When the power supply (3.1.3.1) fails or is cut off, the equipment should be able to display the fault alarm; b. When the equipment finds a fault during the white detection period, it should display the fault alarm. 3.2.5.2 Functional alarm
, when the equipment obtains satellite information, it should issue a satellite tracking alarm; b. When the equipment calculates 1-star positioning data, it should issue a positioning alarm; c. When the ship is in the preset waypoint range, it should issue a waypoint range alarm; d. When the difference between the heading and the steering heading is greater than the set limit, it should issue a waypoint steering heading alarm; e. When the updated distance of the positioning calculated by the equipment exceeds the set limit, it should issue a set alarm; f. When the omega velocity calculated by the equipment exceeds the limit, it should issue an omega velocity alarm; : When the navigation distance difference exceeds the limit, it should issue a navigation distance difference alarm. 3.2. 5.3 When the audible alarm is used, the audible frequency shall be between 200 and 2500 Hz. 4 Test methods
4.1 General requirements
4.1.1 Before the test, ensure that the equipment is in working order. The test is carried out at a test site under room temperature. 4.1.2 Unless otherwise specified, the equipment can only be powered during the specified electrical test and performance test: the power supply voltage applied to the equipment during the test should be the rated voltage, and the frequency of the AC power supply should be the rated frequency. 4.1.3 Other requirements in Chapter 3 of this standard that cannot be determined by the test method in this chapter shall be checked by checking the equipment drawings or other relevant components.
4.2 Operation inspection
4.2.1 Operate according to the specified operating instructions to ensure that the equipment can complete its designed function and operate according to the required formula 1. 4.2.2 Check the lighting device on the display light panel. The equipment should meet the requirements of Article 3.1.8.4. 4.3 Environmental test
4.3.1 General requirements
4. 3.1. 1 Unless otherwise specified, the temperature rise and fall rate during the test shall not exceed 1 ℃/min. 4. 3.1.2 The items and requirements for the inspection and testing of the equipment before, after and during each test shall be specified in the product standards. 4.3.1.3 Unless otherwise specified, the "performance inspection" mentioned in this chapter refers to a brief test that can generally be completed within 5 to 15 minutes. 4.3.7.4 Other environmental test methods shall be specified by the supplier and the buyer in the product standards. 4.3.2 High temperature test
4.3.2.1 Equipment in the cabin
Place the sample in a test chamber with an air temperature of 55-3℃ in the working space, raise the temperature to 55-3℃, maintain for 10 hours, ventilate for 12 hours, and perform performance inspection or test within the specified time.
4.3.2.2 Equipment outside the cabin
Place the sample in a test chamber with a full humidity of 7013℃ in the working space, raise the humidity to 7013℃, maintain for 10 h after the test, lower the temperature in the box to 55±3°C within 30 min, then turn on the power and operate for 2 h, and perform performance inspection or test during this time. 4.3.2.3 After the test: lower the temperature in the box to room temperature within 1 h, then take the sample and restore it at room temperature for more than 3 h before conducting the next test.
4.3.3 Low temperature test
4.3.3.1 Equipment inside the ship
Place the sample in the effective working space of the test box at room temperature, cool it to -10±3°C, keep it for 10 h, then turn on the power and operate for 2 h: and perform performance inspection or test during this time.
4.3.3.2 Equipment outside the ship
WGB/T 9392—1988
Place the sample in the effective space of the test box at room temperature, cool it down to -25±3℃, keep it for 10 hours, and then turn on the power for 2 hours. Do not perform performance inspection or test during this time.
4.3.3.3 After the test, raise the temperature in the box to room temperature in not less than 1 hour, then take the comparison sample and restore it under the actual temperature for more than 3 hours, or wait until the water vapor is completely dissipated (whichever takes longer) before performing the next test. 4.3.4 Constant humidity and heat test (verification of the use of cabin and off-cabin equipment) Place the sample in the effective space of the test box at room temperature, raise the temperature in the box by 40±3℃ within 3±0.5 hours, and raise the relative condensation degree to 91%~95%. Keep it for 10 hours, then turn on the power for 2 hours and perform performance inspection or test during the comparison time. After the test is completed, the temperature in the box shall be lowered to room temperature within 1 hour, and then a small sample shall be taken and allowed to recover under warm conditions for 3 hours or until the water vapor is completely dissipated (whichever is longer) before the next test. 4.3.5 Vibration test (applicable to equipment inside and outside cabins) Fix the sample on the vibration table according to the actual ship's use status and operate. Vibrate at the frequency and amplitude specified in Table 1 at a variable speed of 1
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