An inertial platform test system based on the GLink bus

Abstract

An inertial platform test system based on the GLink bus, comprising an industrial control computer (including a GLink bus data acquisition card, a 1553B bus data acquisition card, a counter card, and a multi-functional serial port card), a DC regulated power supply, a data management server, an environmental parameter monitoring device (including a thermometer and hygrometer, and a MEMS inertial navigation system), an alarm device, a switch, and a time accumulator. Among them, the data management server, the environmental parameter monitoring device, the alarm device, and the switch are implemented by an in-built solution without occupying the space of the device panel. The present invention proposes an inertial platform test system based on the GLink bus and an implementation method, realizing information interaction of the inertial platform system through the GLink bus and the 1553 bus, improving the test coverage of the inertial platform system, and improving the ground test work efficiency of the inertial platform system.

Description

Technical Field

[0001] The present invention relates to an inertial platform test device, and particularly to a high-precision inertial platform test device based on the GLink bus and its implementation method. Background Art

[0002] Existing inertial platform system test devices usually adopt a design scheme based on the 1553B bus and communicate with the inertial platform system through an instruction-response communication method.

[0003] Existing inertial platform system test devices using the traditional 1553B bus have a communication rate of only 1 Mbps, which is low; the communication medium of existing inertial platform system test devices usually uses coaxial cables, and the anti-interference ability is weak. With the continuous development of inertial technology, the communication method of inertial platform test devices is evolving from the traditional 1553B bus to the GLink bus communication method; existing inertial platform test devices based on the 1553B bus cannot cover the inertial platform test work of the GLink bus, resulting in a low test coverage problem. Existing inertial platform test devices can only achieve ground boost pressure and heating control through the 1553B bus when powered by the on-board power supply, and do not have the function of ground boost pressure and heating control when powered by the ground power supply alone. The disk capacity of existing inertial platform test devices is usually only 1T - 2T, which is small and cannot meet the test data storage needs of all test items before leaving the factory. Therefore, existing inertial platform system test devices cannot meet the test requirements of new inertial platform systems. Summary of the Invention

[0004] The technical problem to be solved by the present invention: Overcoming the deficiencies of existing inertial platform test devices, a GLink bus-based inertial platform test system is proposed, which improves the test coverage of the inertial platform system and the ground test work efficiency of the inertial platform system.

[0005] The technical solution of the present invention: A GLink bus-based inertial platform test system includes: an industrial control computer, a DC regulated power supply, a data management server, an environmental parameter monitoring device, an alarm device, a switch, and a time accumulator; the DC regulated power supply provides a stable voltage DC power supply for the inertial platform system; the data management server is used to back up the test data of the inertial platform system; the environmental parameter monitoring device is responsible for collecting temperature, humidity, motion parameters, and attitude parameters; the time accumulator is used to record the total power-on time of the device, evaluate the service life and reliability information of the device;

[0006] Among them, the industrial control computer, DC regulated power supply, data management server, environmental parameter monitoring device, and alarm device are all connected to the switch to form a local area network; the DC regulated power supply is connected to the power supply cable of the inertial platform system to be measured, and GLink bus communication and serial communication are used between the industrial control computer and the inertial platform system to be measured;

[0007] The industrial control computer sends non-periodic control instructions such as self-check instructions, automatic power distribution, self-calibration, initial alignment, flight navigation, and automatic shutdown to the inertial platform system through the GLink bus, as well as periodic query message instructions such as inertial data query, monitoring data query, platform status information query, and navigation result query; the industrial control computer receives self-check information, calibration results, alignment results, inertial data, monitoring data, and platform status information returned from the inertial platform system through the GLink bus;

[0008] The industrial control computer sends handshake instructions, heating control instructions, and temperature parameter query instructions to the inertial platform system through the serial port; the industrial control computer returns handshake reply data and temperature parameters of the inertial platform system through the serial port;

[0009] The industrial control computer receives environmental temperature and humidity data sent by the environmental parameter monitoring device, as well as attitude, speed, and position data of the test system, through the switch;

[0010] The industrial control computer continuously judges the monitoring data of the inertial platform system. When the monitoring data exceeds the preset threshold, an alarm instruction is sent to the alarm device through the switch, and the alarm device emits an audible and visual alarm signal.

[0011] Furthermore, communication is also carried out between the industrial control computer and the inertial platform system to be measured through the 1553B bus;

[0012] The industrial control computer sends non-periodic control instructions such as self-check instructions, automatic power distribution, self-calibration, initial alignment, flight navigation, and automatic shutdown to the inertial platform system through the 1553B bus, as well as periodic query message instructions such as inertial data query, monitoring data query, platform status information query, and navigation result query; the industrial control computer receives self-check information, calibration results, alignment results, inertial data, monitoring data, and platform status information returned from the inertial platform system through the 1533B bus.

[0013] Furthermore, the industrial control computer uses an industrial control computer chassis with a mixed slot of PXI, PXIe, and CPCI, and is configured with industrial control boards including a GLink bus data acquisition card, a 1553B bus data acquisition card, a counter card, and a multi-functional serial port card;

[0014] Among them, the industrial control computer is connected to the GLink bus data acquisition card through the PXIe backplane bus. The GLink bus data acquisition card is connected to the inertial platform system through an optical cable to establish a GLink bus channel and realize the GLink communication function;

[0015] The industrial control computer is connected to the 1553B bus data acquisition card through the CPCI backplane bus. The 1553B bus data acquisition card is connected to the inertial platform system through a coaxial cable to establish a 1553B bus channel and realize the 1553B bus communication function;

[0016] The industrial control computer is connected to the multi-functional serial port card through the CPCI backplane bus. The multi-functional serial port card is connected to the inertial platform system through a shielded twisted pair cable to establish a serial communication channel and realize the serial communication function;

[0017] The industrial control computer is connected to the counter card through the PXIe bus. The counter card is connected to the inertial platform system through a shielded twisted pair cable. The counter card measures the digital frequency standard of the inertial platform system to determine whether the digital frequency standard of the inertial platform system meets the accuracy requirements.

[0018] Further, during the inertial platform test, the GLink bus data acquisition card of the industrial control computer is configured as an NC control station, and the inertial platform is configured as an NT remote station. The industrial control computer and the inertial platform system establish a point-to-point GLink bus communication method;

[0019] Among them, the industrial control computer initializes the GLink bus data acquisition card to the NC mode; the industrial control computer configures the periodic query message instructions sent from the NT station to the NC station for the GLink bus data acquisition card, including inertial data, monitoring data, status information, and navigation result instructions; according to the test requirements of the inertial platform system to be tested, the industrial control computer configures the non-periodic control instructions sent from the NC station to the NT station for the GLink bus data acquisition card, including self-test instructions, automatic power distribution, self-calibration, initial alignment, flight navigation, and automatic shutdown instructions.

[0020] Further, the DC regulated power supply is responsible for converting the mains input into three DC regulated power supply outputs of DS0V~40V, ground 0V~40V, and ground 0V~65V required by the inertial platform system; the DC regulated power supply has TCP / IP network communication functions, can configure IP addresses, and is connected to the industrial control computer through a switch;

[0021] The industrial control computer sends power parameter setting instructions, power output control instructions, and power parameter query instructions to the DC regulated power supply through a switch, respectively realizing the functions of setting the output voltage of the DC regulated power supply, the upper and lower limits of the protection voltage, and the upper and lower limits of the protection current, the power output program control function, and the real-time monitoring function of the power output.

[0022] Furthermore, the data management server has TCP / IP network communication function and is connected to the industrial control computer through a switch; access control to the data in the data management server is realized through the user name and password method to achieve data security management; among them, the industrial control computer stores the test data of the inertial platform system in the data management server.

[0023] Furthermore, the environmental parameter monitoring device includes a temperature and humidity meter and a MEMS inertial navigation system. The temperature and humidity meter is used to monitor environmental temperature and humidity data, and the MEMS inertial navigation system is used to monitor the motion data of the inertial platform test system based on the GLink bus, including attitude, speed, and position data, providing auxiliary monitoring data for platform data analysis.

[0024] Furthermore, during the test of the inertial platform system by the industrial control computer of the alarm device, when the platform rotates over-speed, the instrument temperature exceeds the temperature limit, or any electrical parameter of the controlled instrument exceeds the threshold range, the industrial control computer sends an alarm signal to the alarm device through the TCP / IP network; the alarm device emits an audible and visual alarm signal to indicate that the test of the inertial platform system is abnormal.

[0025] Furthermore, based on the inertial platform test system of the present invention, a method for testing an inertial platform based on the GLink bus is provided, including the following steps:

[0026] S1. The inertial platform test system is connected to the mains power, the industrial control computer is powered on, the data management server, the environmental parameter monitoring device are powered on, the DC regulated power supply is powered on and self-checked with no output, the alarm device is powered on, the switch is powered on, and the time accumulator starts to accumulate the power-on time;

[0027] S2. The inertial platform test system works, the GLink data board completes initialization and parameter configuration, controls the output of the DC regulated power supply, the inertial platform system starts to work, and the indicator light of the alarm device indicates the normal state;

[0028] S3. The GLink bus data acquisition card, the 1553B bus data acquisition card, and the counter card start to work, acquire the inertial data, monitored quantity data, and frequency standard data of the inertial platform, and send heating control instructions and automatic power distribution control instructions to the inertial platform system;

[0029] S4. The industrial control computer analyzes the inertial data, monitoring data, status information, and navigation results according to the communication protocol and saves them to the local disk and the data management server. The industrial control computer reads and judges the monitoring data and status information in real time. If the rotation speed of the inertial platform is too high or the monitoring data is abnormal, it sends an alarm signal to the alarm device through the switch, and the alarm device gives an audible and visual alarm.

[0030] S5. After the test is completed, the industrial control computer sends an automatic shutdown command to the inertial platform system and sends a disconnection output command to the DC regulated power supply.

[0031] The advantages of the present invention compared with the prior art are as follows:

[0032] (1) Based on the PXIe bus architecture computer, through modular design, the present invention builds an inertial platform test device based on the GLink bus, which can simultaneously meet the ground test requirements of the GLink bus and the 1553B bus of the inertial platform system. The existing inertial platform test devices can only communicate with the platform system through the 1553B bus. The present invention improves the test coverage of the inertial platform system.

[0033] (2) The communication rate of the inertial platform test device adopted by the present invention is as high as 2.5 Gbps, while the communication rate of the existing inertial platform test devices is only 1 Mbps. Comparatively speaking, the communication rate of the inertial platform test device of the present invention is higher.

[0034] (3) The inertial platform test device of the present invention adopts the GLink bus, and the physical medium selects optical fiber, which has stronger anti-interference ability compared with the existing devices.

[0035] (4) The inertial platform system test device of the present invention has the function of ground heating control, which solves the functions of ground heating control, temperature monitoring, and temperature control parameter binding through the RS484 serial port during the ground hot standby test process of the inertial platform system when the power supply on the missile is not supplied. Compared with the existing inertial platform test devices, the launch preparation time is shortened.

[0036] (5) The inertial platform system test device of the present invention has a data management server, which can store all the test data of multiple sets of inertial platform systems during the research and development stage, and has a larger storage space compared with the existing inertial platform test devices.

[0037] (6) The present invention has the function of environmental parameter monitoring, which can record information such as temperature, humidity, angular motion, and linear motion in the test environment, while the existing inertial platform test devices lack this function.

[0038] (7) The present invention has the function of frequency standard measurement, which can be used for the measurement of the frequency standard information of the inertial platform, while the existing inertial platform test devices lack this function. Description of the Drawings

[0039] Figure 1 Schematic diagram of the system structure of the present invention;

[0040] Figure 2 Schematic diagram of the information flow of the present invention;

[0041] Figure 3 Working flowchart of the present invention. Specific embodiments

[0042] The present invention will be further described below with reference to the accompanying drawings:

[0043] The present invention proposes an inertial platform test system based on the GLink bus, which realizes the ground test function of the inertial platform system through the GLink bus and the 1553 bus. As Figure 1 shown in the system composition of the present invention, it mainly consists of the following modules: industrial control computer, DC regulated power supply, data management server, environmental parameter monitoring device, alarm device, switch, and time accumulator.

[0044] The industrial control computer uses an industrial control computer chassis with PXI, PXIe, and CPCI hybrid slots, and is configured with industrial control board cards including a GLink bus data acquisition card, a 1553B bus data acquisition card, a counter card, and a multi-functional serial port card.

[0045] Among them, the industrial control computer is connected to the GLink bus data acquisition card through the PXIe backplane bus, and the GLink bus data acquisition card is connected to the inertial platform system through an optical cable to establish a GLink bus channel and realize the GLink communication function. The industrial control computer sends non-periodic control instructions such as self-test instructions, automatic power distribution, self-calibration, initial alignment, flight navigation, and automatic shutdown, as well as periodic query message instructions such as inertial data query, monitoring data query, platform status information query, and navigation result query to the inertial platform system through the GLink bus. The industrial control computer receives results such as self-test information, calibration results, alignment results, inertial data, monitoring data, and platform status information returned from the inertial platform system through the GLink bus.

[0046] Among them, the industrial control computer is connected to the 1553B bus data acquisition card through the CPCI backplane bus. The 1553B bus data acquisition card is connected to the inertial platform system through a coaxial cable to establish a 1553B bus channel and realize the 1553B bus communication function. The industrial control computer sends non-periodic control instructions such as self-test instructions, automatic power distribution, self-calibration, initial alignment, flight navigation, and automatic shutdown to the inertial platform system through the 1553B bus, as well as periodic query message instructions such as inertial data query, monitoring data query, platform status information query, and navigation result query. The industrial control computer receives results such as self-test information, calibration results, alignment results, inertial data, monitoring data, and platform status information returned from the inertial platform system through the 1533B bus.

[0047] Among them, the industrial control computer is connected to the multi-functional serial port card through the PXIe bus. The multi-functional serial port card is connected to the inertial platform system through a double-shielded twisted-pair cable to establish a serial port communication channel and realize the RS-485 / RS-422 / RS-232 bus communication function. In this embodiment, the industrial control computer sends handshake instructions, heating control instructions, and temperature parameter query instructions to the inertial platform system through the RS-485 bus. The industrial control computer returns handshake reply data, temperature parameters, etc. of the inertial platform system through the RS-485 bus.

[0048] Among them, the industrial control computer is connected to the counter card through the PXIe bus. The counter card is connected to the inertial platform system through a double-shielded twisted-pair cable. The counter card measures the digital frequency standard of the inertial platform system to determine whether the digital frequency standard of the inertial platform system meets the accuracy requirements.

[0049] The industrial control computer receives environmental temperature and humidity data sent by the environmental parameter monitoring device, as well as motion data such as the attitude, speed, and position of the device, through the switch.

[0050] The industrial control computer continuously judges the monitoring data of the inertial platform system. When the monitoring data exceeds the preset threshold, it sends an alarm instruction to the alarm device through the switch, and the alarm device emits an audible and visual alarm signal.

[0051] The industrial control computer sends power parameter setting instructions, power output control instructions, and power parameter query instructions to the DC regulated power supply through the switch, to respectively realize the functions of setting the output voltage of the DC regulated power supply, the upper and lower limits of the protection voltage, and the upper and lower limits of the protection current, the power output program control function, and the real-time monitoring function of the power output.

[0052] The industrial control computer in the embodiment of the present invention uses an 18-slot PXIe / PXI / CPCI / CPCIe hybrid-slot industrial control computer chassis from NI, a PXIe bus counter card, a network communication card, a GLink bus data acquisition board card from Aerospace Avenue Company, a 1553 board card from Altadt Company, a serial port card from ADVANTECH, and uses a ruggedized monitor, and a keyboard and mouse from Lenovo to achieve input and output operations.

[0053] The DC regulated power supply in the embodiment of the present invention uses DC regulated power supplies of models N5746A and N5747A from Keysight. The data management server uses a DS1821+ enterprise-level NAS network storage server from Synology. The environmental parameter monitoring device uses an industrial-grade wired temperature and humidity recorder from Herbalife and a micro inertial unit from Beijing Sanchi Inertial Technology Company. The alarm device uses an alarm device from Patlite. The switch uses an industrial-grade switch from TP-LINK. The time accumulator uses a mechanical time accumulator from Kuebler.

[0054] The environmental parameter monitoring device in the embodiment of the present invention includes a temperature and humidity meter and a MEMS inertial navigation system. The temperature and humidity meter is used to monitor environmental temperature and humidity data. The MEMS inertial navigation system is mainly used to monitor motion data such as the attitude, speed, and position of an inertial platform test system based on the GLink bus, providing auxiliary monitoring data for platform data analysis.

[0055] In the embodiment of the present invention, the DC regulated power supply is responsible for converting the input of 220V / 50Hz mains electricity into the output of three DC regulated power supplies required by the inertial platform: DS28V, ground 28V, and ground 56V. The output voltage of the DS28V power supply is continuously adjustable from 0V to 40V; the output voltage of the ground 28V power supply is continuously adjustable from 0V to 40V; the output voltage of the ground 56V power supply is continuously adjustable from 0V to 65V. The DC regulated power supply has a TCP / IP network communication function, can configure an IP address, and is connected to the industrial control computer through a switch.

[0056] Further, during the inertial platform test, the GLink bus data acquisition card of the industrial control computer is configured as an NC control site, and the inertial platform is configured as an NT remote site. The industrial control computer and the inertial platform system establish a point-to-point GLink bus communication method.

[0057] Among them, the industrial control computer initializes the GLink bus data acquisition card to the NC mode; the industrial control computer configures the NT->NC (indicating sending from site NT to site NC) periodic query message instructions for the GLink bus data acquisition card, including inertial data, monitoring data, status information, and navigation result instructions; according to the test requirements of the inertial platform system to be tested, the industrial control computer configures the NC->NT (indicating sending from site NC to site NT) aperiodic control instructions for the GLink bus data acquisition card, including self-check instructions, automatic power distribution, self-calibration, initial alignment, flight navigation, and automatic shutdown instructions.

[0058] The schematic diagram of the information flow between the inertial platform test device based on the GLink bus and the inertial platform system in the present invention is as Figure 2 shown.

[0059] In the embodiment of the present invention, the industrial control computer is connected to the inertial platform system through the GLink bus, 1553B bus, and RS-485 bus. The industrial control computer sends control instructions to the inertial platform system through the GLink bus and 1553B bus, and the inertial platform system sends inertial data and monitoring data to the industrial control computer through the GLink bus and 1553B bus. The industrial control computer sends ground boost heating control instructions to the inertial platform system through the RS-485 bus. The industrial control computer judges the monitoring data of the inertial platform system in real time. When it exceeds the preset threshold, it sends an alarm instruction to the alarm device through the switch, and the alarm device emits an audible and visual alarm signal. The industrial control computer is connected to the data management server through the switch, and stores the platform test data on the data management server for backup. The industrial control computer is connected to the environmental parameter monitoring device through the switch and is responsible for collecting temperature, humidity, motion parameters, and attitude parameters.

[0060] As Figure 3 shown, based on the inertial platform test system of the present invention, a method for testing an inertial platform based on the GLink bus is provided, including the steps of:

[0061] S1. The inertial platform test system is powered on by commercial power, the industrial control computer is turned on, the data management server and the environmental parameter monitoring device are powered on, the DC regulated power supply is powered on and self-checked with no output, the alarm device is powered on, the switch is powered on, and the time accumulator starts to accumulate the power-on time;

[0062] S2. The inertial platform test system works, the GLink data board completes initialization and parameter configuration, controls the output of the DC regulated power supply, the inertial platform system starts to work, and the indicator light of the alarm device indicates the normal state;

[0063] S3. The GLink bus data acquisition card, 1553B bus data acquisition card, and counter card start working, collecting inertial data, monitoring data, and frequency standard data of the inertial platform, and sending heating control instructions and automatic power distribution control instructions to the inertial platform system.

[0064] S4. The industrial control computer analyzes inertial data, monitoring data, status information, and navigation results according to the communication protocol and saves them to the local disk and data management server. The industrial control computer real-time interprets the monitoring data and status information. If the inertial platform rotates overspeed or the monitoring data is abnormal, it sends an alarm signal to the alarm device through the switch, and the alarm device gives an audible and visual alarm.

[0065] S5. After the test is completed, the industrial control computer sends an automatic shutdown instruction to the inertial platform system and sends a disconnect output instruction to the DC regulated power supply.

[0066] Furthermore, in the embodiment of the present invention, an integrated real-time test system for an inertial platform includes the following steps:

[0067] Step 1. The inertial platform test system is powered on, and all hardware initializations (including computer initialization and communication board card initialization) and software initializations (such as global variable initialization, CRC check table initialization, etc.) are completed, and all the above modules are activated.

[0068] Step 2. After the initialization is completed, the working state of the current inertial platform will be displayed in the interface control module, and the user is waited for to perform control instruction operations.

[0069] Step 3. The user selects the corresponding test task template according to the test requirements. The execution status of the test task, whether the test instruction is successfully sent, whether it is responded to, the instruction completion status, etc. will all be fully displayed in the interface control module.

[0070] Step 4. The user can load other test templates according to the display of the interface control module. If the test task is completed, the test system is exited.

[0071] Step 5. During any of the above processes (1) to (4), the test task scheduling module is responsible for the entire process of the test task. The real-time data acquisition module and the real-time communication module will send data to the fault detection and file management module. The fault detection module monitors and judges the test task in real time. If a serious abnormality occurs, this module will automatically implement emergency measures and store all the current status data and operation steps. The file management module stores the test running status and test data of the inertial platform.

[0072] Although the present invention has been disclosed above in preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. An inertial platform test system based on the GLink bus, where the device under test is the inertial platform system of a spacecraft, characterized in that It includes an industrial control computer, a DC regulated power supply, a data management server, an environmental parameter monitoring device, an alarm device, a switch, and a time accumulator; the DC regulated power supply provides a stable DC power supply for the inertial platform system; the data management server is used to back up the test data of the inertial platform system; the environmental parameter monitoring device is responsible for collecting temperature, humidity, motion parameters, and attitude parameters; the time accumulator is used to record the total power-on time of the device, evaluate the service life and reliability information of the device; Among them, the industrial control computer, the DC regulated power supply, the data management server, the environmental parameter monitoring device, and the alarm device are all connected to the switch to form a local area network; the DC regulated power supply is connected to the power supply cable of the inertial platform system under test, and GLink bus communication and serial communication are used between the industrial control computer and the inertial platform system under test; The industrial control computer sends non-periodic control instructions such as self-check instructions, automatic power distribution, self-calibration, initial alignment, flight navigation, and automatic shutdown to the inertial platform system through the GLink bus, as well as periodic query message instructions such as inertial data query, monitoring data query, platform status information query, and navigation result query; the industrial control computer receives self-check information, calibration results, alignment results, inertial data, monitoring data, and platform status information returned from the inertial platform system through the GLink bus; The industrial control computer sends handshake instructions, heating control instructions, and temperature parameter query instructions to the inertial platform system through the serial port; the industrial control computer returns handshake reply data and temperature parameters of the inertial platform system through the serial port; The industrial control computer receives the environmental temperature and humidity data sent by the environmental parameter monitoring device, as well as the attitude, speed, and position data of the test system through the switch; The industrial control computer judges the monitoring data of the inertial platform system in real time. When the monitoring data exceeds the preset threshold, it sends an alarm instruction to the alarm device through the switch, and the alarm device emits an audible and visual alarm signal; The industrial control computer adopts an industrial control computer chassis with PXI, PXIe, and CPCI hybrid slots, and is configured with industrial control board cards including a GLink bus data acquisition card, a 1553B bus data acquisition card, a counter card, and a multi-functional serial port card; Among them, the industrial control computer is connected to the GLink bus data acquisition card through the PXIe backplane bus, and the GLink bus data acquisition card is connected to the inertial platform system through an optical cable to establish a GLink bus channel and realize the GLink communication function; The industrial control computer is connected to the 1553B bus data acquisition card through the CPCI backplane bus, and the 1553B bus data acquisition card is connected to the inertial platform system through a coaxial cable to establish a 1553B bus channel and realize the 1553B bus communication function; The industrial control computer is connected to the multi-functional serial port card through the CPCI backplane bus, and the multi-functional serial port card is connected to the inertial platform system through a double-shielded twisted-pair cable to establish a serial communication channel and realize the serial communication function; The industrial control computer is connected to the counter card via the PXIe bus. The counter card is connected to the inertial platform system via a shielded twisted-pair cable. The counter card measures the digital frequency standard of the inertial platform system to determine whether the digital frequency standard of the inertial platform system meets the accuracy requirements. During the inertial platform test, the GLink bus data acquisition card of the industrial control computer is configured as an NC control site, and the inertial platform is configured as an NT remote site. The industrial control computer and the inertial platform system establish a point-to-point GLink bus communication mode. Among them, the industrial control computer initializes the GLink bus data acquisition card to the NC mode; the industrial control computer configures the GLink bus data acquisition card with periodic query message instructions sent from site NT to site NC, including inertial data, monitoring data, status information, and navigation result instructions; the industrial control computer configures the GLink bus data acquisition card with non-periodic control instructions sent from site NC to site NT according to the test requirements of the inertial platform system to be tested, including self-test instructions, automatic power distribution, self-calibration, initial alignment, flight navigation, and automatic shutdown instructions.

2. The inertial platform test system based on the GLink bus according to claim 1, wherein: The industrial control computer also communicates with the inertial platform system to be tested via the 1553B bus. The industrial control computer sends self-test instructions, automatic power distribution, self-calibration, initial alignment, flight navigation, and automatic shutdown non-periodic control instructions, as well as inertial data query, monitoring data query, platform status information query, and navigation result query periodic query message instructions to the inertial platform system via the 1553B bus; the industrial control computer receives self-test information, calibration results, alignment results, inertial data, monitoring data, and platform status information returned from the inertial platform system via the 1533B bus.

3. The inertial platform test system based on the GLink bus according to claim 1, wherein: The described DC regulated power supply is responsible for converting the mains input into the DC regulated power supply output required by the inertial platform system; the DC regulated power supply has TCP / IP network communication capabilities, can configure IP addresses, and is connected to the industrial control computer via a switch. The industrial control computer sends power parameter setting instructions, power output control instructions, and power parameter query instructions to the DC regulated power supply via the switch to respectively implement the functions of setting the output voltage of the DC regulated power supply, the upper and lower limits of the protection voltage, and the upper and lower limits of the protection current, the power output program control function, and the real-time monitoring function of the power output.

4. A GLink bus-based inertial platform test system according to claim 1, characterized in that: The described data management server has TCP / IP network communication capabilities and is connected to the industrial control computer via a switch; access control to the data in the data management server is achieved through the user name and password method to realize data security management; among them, the industrial control computer stores the test data of the inertial platform system in the data management server.

5. The inertial platform test system based on the GLink bus according to claim 1, characterized in that: The described environmental parameter monitoring device includes a temperature and humidity meter and a MEMS inertial navigation system. The temperature and humidity meter is used to monitor environmental temperature and humidity data, and the MEMS inertial navigation system is used to monitor the motion data of the inertial platform test system based on the GLink bus, including attitude, speed, and position data, to provide auxiliary monitoring data for platform data analysis.

6. The inertial platform test system based on the GLink bus according to claim 1, characterized in that: During the test of the inertial platform system, when the platform rotates at an excessive speed, the instrument temperature exceeds the normal range, or the electrical parameters of any controlled instrument exceed the threshold range, the industrial control computer sends an alarm signal to the alarm device through the TCP / IP network; the alarm device emits an audible and visual alarm signal to indicate that an abnormality has occurred in the inertial platform system test.

7. A GLink bus-based inertial platform test method for the system according to claim 1, characterized in that It includes the following steps: S1. The inertial platform test system is powered on by commercial power, the industrial control computer is turned on, the data management server and the environmental parameter monitoring device are powered on, the DC regulated power supply is powered on for self-check and has no output, the alarm device is powered on, the switch is powered on, and the time accumulator starts to accumulate the power-on time. S2. The inertial platform test system operates, the GLink data board completes initialization and parameter configuration, controls the output of the DC regulated power supply, the inertial platform system starts to operate, and the indicator light of the alarm device indicates the normal state. S3. The GLink bus data acquisition card, the 1553B bus data acquisition card, and the counter card start to operate, acquire the inertial data, monitored quantity data, and frequency standard data of the inertial platform, and send heating control instructions and automatic power distribution control instructions to the inertial platform system. S4. The industrial control computer analyzes the inertial data, monitored data, status information, and navigation results according to the communication protocol and saves them to the local disk and the data management server; the industrial control computer real-time interprets the monitored quantity data and status information. If the inertial platform rotates at an excessive speed or the monitored quantity is abnormal, it sends an alarm signal to the alarm device through the switch, and the alarm device emits an audible and visual alarm. S5. After the test is completed, the industrial control computer sends an automatic shutdown instruction to the inertial platform system and a disconnect output instruction to the DC regulated power supply.

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