CN103090898A - Flight data recording equipment ground integrated test system - Google Patents

Abstract

The invention relates to a ground comprehensive test system for flight data recording equipment, which includes a main control computer, a simulation control computer, a verification control computer, a signal simulation subsystem, a signal verification subsystem, a communication network subsystem and a synchronous trigger subsystem. The main control computer completes functions such as user management, report output, and flight parameter interpretation; the simulation control computer is the control center of the signal simulation subsystem; the verification control computer is the control center of the signal verification subsystem; the signal simulation subsystem outputs various simulations in real time. Signal; the signal verification subsystem is composed of test instruments, which verify the correctness or accuracy of the simulation signal output by the signal simulation subsystem; the communication network subsystem is a communication platform between computers and test instruments in the system; the synchronous trigger subsystem realizes signal simulation Clock synchronization and trigger synchronization of subsystems and signal verification subsystems. The invention provides an accurate signal source for the comprehensive test of the ground environment flight data recording equipment.

Description

A Ground Comprehensive Test System for Flight Data Recording Equipment

technical field

The present invention relates to a ground comprehensive test system for flight data recording equipment, in particular to an instrument simulation multi-channel actual airborne signal driven by real flight data, which is used as the signal source of the flight data recording equipment and comprehensively tested on the ground. Test evaluation of flight data recording equipment ground integrated test system.

Background technique

In the field of aerospace, flight parameter data has important reference and application value. In addition to using the flight parameter data to investigate the cause of the accident of the crashed aircraft, the flight parameter data can also be used to test the design performance of the aircraft, monitor the health status of the aircraft, fault diagnosis and trend prediction, etc. Obtaining flight parameters is mainly achieved in two ways: ① the ground station uses the communication system to directly communicate with the aircraft; is the main means. The flight data recorder is the carrier for recording flight parameter data in the airborne equipment. It records the parameters related to the performance and flight status of the aircraft from take-off to landing in chronological order. The working state of the component. Flight data recorders are mainly divided into tape flight recorder FDR, digital flight data recorder DFDR and fast storage data recorder QAR. From FDR to QAR, the recorded parameters gradually increase, from a single PCM signal to a discrete quantity Signals, bus data, multi-channel PCM signals, audio and video data and other signals, covering flight parameters such as altitude, speed, acceleration, pitch, tilt, heading, etc., performance parameters of the engine and main components, as well as temperature, air pressure, wind speed, etc. Parameters inside and outside the cabin, etc. Therefore, today's flight data recording functions are more and more, and the structure is more and more complex.

At present, in the research and development process of flight data recording equipment, the test of the product is simply provided with a small number of analog signals, discrete signals or bus signals for its collection. Testing can only be done through field test flights, which are expensive, time-consuming and dangerous.

In view of the above situation, it is urgent to provide a new type of ground comprehensive test system for flight data recording equipment.

Contents of the invention

The technical problem to be solved by the present invention is to provide a kind of real flight data to drive the instrument to simulate multi-channel actual airborne signals, and to ensure the timing relationship between the signals, for the comprehensive test of the flight data recording equipment on the ground station before the actual installation test Provide a feasible approach to the flight data recording equipment ground comprehensive test system.

In order to solve the above technical problems, the present invention provides a ground comprehensive test system for flight data recording equipment, which is characterized in that it includes 1 main control computer, 1 database server, M simulation control computers, N verification control computers, and M signal It consists of a simulation subsystem, N signal verification subsystems, a communication network subsystem and a synchronous trigger subsystem. M is greater than or equal to 1, one signal simulation subsystem corresponds to one simulation control computer, N is greater than or equal to 1, one signal verification subsystem corresponds to one verification control computer;

The main control computer imports the original flight data into the database server, and forms a simulation database through flight data interpretation, outlier elimination, interpolation smoothing and inverse calculation processing, and generates signal simulation strategies and signal verification strategies according to user selection and configuration. The simulation strategy includes instrument information related to the signal simulation subsystem, the start and end time, amplitude, frequency, pulse number, and data packet content related to signal characteristics, and the signal verification strategy includes instrument information related to the signal verification subsystem; the main control The computer maintains communication with the simulation control computer and the verification control computer at the same time, controls the task scheduling of the two and receives the status feedback of the two;

The database server provides data storage services for the entire system, storing original flight data and simulation data;

The simulation control computer communicates with the main control computer to obtain the signal simulation strategy, analyzes the signal simulation strategy, and obtains the characteristics of the simulated signal; at the same time communicates with the signal simulation subsystem to control the operation of various instruments and equipment in the signal simulation subsystem, and monitor the signal simulation The operating status of each device in the subsystem;

The signal simulation subsystem is composed of several test instruments. Under the control of the simulation control computer, each instrument and equipment output physical signals according to the characteristics of the simulation signal, and at the same time, the operating status of each instrument and equipment in the signal simulation subsystem is regularly reported to the simulation control computer.

The verification control computer communicates with the main control computer to obtain the signal verification strategy, analyzes the signal verification strategy, and obtains the configuration information of the instruments in the signal verification subsystem during signal verification; through communication between the communication network subsystem and the signal verification subsystem, the configuration information Send to the signal verification subsystem, control each instrument and equipment in the signal verification subsystem to collect the physical signal output by the signal simulation subsystem, and send the obtained verification results back to the main control computer;

Under the control of the verification control computer, the signal verification subsystem collects the physical signals output by the signal simulation subsystem, and sends back the collected results and the operating status of each instrument and equipment in the signal verification subsystem to the verification control computer;

The communication network subsystem serves as a communication platform between the main control computer, database server, simulation control computer, verification control computer, instruments in the signal simulation subsystem, and instruments in the signal verification subsystem;

The synchronous triggering subsystem has two functions of clock synchronization and triggering. The clock synchronization realizes the physical clock synchronization of each instrument in the signal simulation subsystem and the signal verification subsystem, and the trigger realizes the signal simulation subsystem and each instrument in the signal verification subsystem. Synchronization of device actions.

The main control computer includes a data acquisition module, a flight reference interpretation module, a data processing module, a strategy generation module, a data sending module, a data receiving module, a data comparison module, a log management module, a report output module, a user management module, and a user interface module; the data acquisition module reads the original flight data from the database server and sends it to the flight parameter interpretation module; the flight parameter interpretation module uses three restoration algorithms according to different parameter types: analog quantity interpretation, discrete quantity interpretation Convert the binary source code value in the original flight data into a decimal engineering value, and send the interpreted data to the data processing module; the data processing module realizes outlier elimination and interpolation smoothing of the interpreted decimal engineering value , After the anti-calculation process, write the data into the database server to form a simulation database, in which outliers are eliminated based on time point jumps, parameter overruns, and rate of change distortion criteria, and the effective flight data at the previous moment are used to replace outliers, and the interpolation is smooth Linear interpolation is performed n times per second, and the inverse calculation process is to convert the obtained decimal engineering value into a physical quantity that can be simulated by the test instrument to drive the test instrument to generate a signal and store it in the database server; complete the "pre-prediction" of flight data through the above steps deal with";

After the user sets the type of flight data recording equipment to be tested, the type of simulation signal, and the start and end time information of the simulation through the user interface module, the strategy generation module generates the corresponding signal simulation strategy and signal verification strategy and transmits them to the data sending module; the data sending module The signal simulation strategy and the signal verification strategy are sent to the simulation control computer and the verification control computer respectively through the communication network subsystem, and the simulation control computer and the verification control computer perform corresponding actions accordingly; Obtain the verification result; the data comparison module compares the coincidence of two sets of flight data; the log management module records the user's operation records; the report output module outputs or prints the flight data selected by the user; the user management module is used to add or delete users and set User rights.

The simulation control computer includes a data receiving module, a data analysis module, a data sending module, a status acquisition module, and a status display module; the data receiving module receives the signal simulation strategy from the main control computer and transmits it to the data analysis module; the data analysis module simulates the signal The strategy is analyzed, and the characteristics of the simulated signal are obtained and sent to the data sending module; the data sending module sends the simulated signal characteristics to the test instrument in the signal simulation subsystem through the communication network subsystem, so that it generates and outputs a physical signal; the state acquisition module receives the signal The simulation subsystem reports to the simulation control computer the instrument, equipment operation status or error report, and displays it on the screen through the status display module.

The signal simulation subsystem includes a data receiving module, a signal generating module, a data discrimination module, and a state transmission module; the data reception module receives the signal simulation control computer through the communication network subsystem and transmits the simulated signal characteristics sent by the computer to the data discrimination module; the data discrimination module Make a judgment on the signal simulation characteristics, and if it matches the capability range of the test instrument, it will be passed to the signal generation module. The signal generation module is a sub-function function body for different instruments driven by Vpp. By calling the signal generation module, the test instrument realizes its own Signal output action; if it exceeds the capability of the test instrument, an error report will be generated and sent to the status sending module. The status sending module will send the error report and the operating status of each instrument and equipment in the simulation subsystem back to the simulation control computer through the communication network subsystem.

The signal simulation subsystem consists of several GPIB, VXI, PXI and LXI instruments.

The verification control computer includes a data receiving module, a data analysis module, a data sending module, a data acquisition module, and a status display module; the data receiving module receives the signal verification strategy from the main control computer and transmits it to the data analysis module; the data analysis module analyzes the signal The verification strategy generates instrument configuration information and transmits it to the data sending module; the data sending module sends the instrument configuration information to the signal verification subsystem through the communication network subsystem, and the signal verification subsystem performs corresponding actions accordingly; the data acquisition module receives the verification information on the one hand. The data collected by the subsystem and the verification result are sent to the main control computer through the data sending module, and at the same time, the received signal verification subsystem reports to the verification control computer the instrument, equipment operation status or error report, and displays it on the screen through the status display module .

The signal verification subsystem includes a data receiving module, a configuration identification module, a data acquisition module, and a status sending module; the data receiving module receives the instrument configuration information from the verification control computer and transmits it to the configuration identification module; the configuration identification module judges the validity of the instrument configuration information If it is legal, call the data acquisition module test instrument to realize their respective signal acquisition actions and transfer the collection results to the status sending module; if it is not legal, generate an error report and send it to the status sending module; Reports, data collection results and the operating status of each instrument and equipment in the verification subsystem are sent back to the verification control computer.

The signal verification subsystem is composed of several GPIB, VXI, PXI and LXI.

The communication network subsystem uses Ethernet as the basic structure to connect the instruments and computers in the system; the GPIB, PXI and VXI instruments realize the connection of the test bus to the Ethernet through the GPIB-LAN gateway, the PXI embedded computer and the VXI-LXI zero-slot controller respectively. Integrated, LXI instruments connect directly to Ethernet.

The synchronous triggering subsystem uses the OCXO or TCXO crystal oscillator in the system as the main clock, adopts the daisy chain clock synchronization method, the clock transmission line adopts a coaxial cable with an impedance of 50Ω, and each instrument shares the clock pulse signal of the main clock through the clock transmission line; Type trigger, connect the programmable interface of the trigger master device to the TRIG IN ports of other instruments through equal-length 50Ω coaxial cables.

The daisy-chain clock synchronization method in the synchronous trigger subsystem is that the CLK OUT port of instrument 1 is connected to the CLK IN port of instrument 2, and the CLK OUT port of instrument 2 is connected to the CLK IN port of instrument 3, and so on.

The advantage of the present invention compared with prior art is:

(1) The present invention comprehensively adopts multiple GPIB, VXI, PXI and LXI instruments, and the airborne signal types that can be simulated are comprehensive, including analog signal, discrete signal and bus signal; Simultaneously, there are many signal channels, which can be simulated simultaneously Multiple airborne signals.

(2) The present invention adopts a synchronous trigger technology to ensure that the output multi-channel simulation signals have good time and value correlation.

(3) The multi-channel simulation signal produced by the present invention has high precision. GPIB, VXI, PXI and LXI devices with high precision are selected as the source for generating simulation signals, and these devices are well designed in terms of electromagnetic compatibility, have strong anti-interference ability, and can output high-precision simulation signals.

Description of drawings

Fig. 1 is a schematic diagram of a ground comprehensive test system for flight data recording equipment provided by the present invention.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

The present invention is a ground comprehensive test system for flight data recording equipment, which is characterized in that it includes 1 main control computer, 1 database server, M simulation control computers, N verification control computers, M signal simulation subsystems, N It consists of a signal verification subsystem, a communication network subsystem and a synchronous trigger subsystem. M is greater than or equal to 1, one signal simulation subsystem corresponds to one simulation control computer, N is greater than or equal to 1, one signal verification subsystem corresponds to one verification control computer;

The main control computer imports the original flight data into the database server, and forms a simulation database through flight data interpretation, outlier elimination, interpolation smoothing and inverse calculation processing, and generates signal simulation strategies and signal verification strategies according to user selection and configuration. The simulation strategy includes instrument information related to the signal simulation subsystem, the start and end time, amplitude, frequency, pulse number, and data packet content related to signal characteristics, and the signal verification strategy includes instrument information related to the signal verification subsystem; the main control The computer maintains communication with the simulation control computer and the verification control computer at the same time, controls the task scheduling of the two and receives the status feedback of the two;

The database server provides data storage services for the entire system, storing original flight data and simulation data;

The simulation control computer communicates with the main control computer to obtain the signal simulation strategy, analyzes the signal simulation strategy, and obtains the characteristics of the simulated signal; at the same time communicates with the signal simulation subsystem to control the operation of various instruments and equipment in the signal simulation subsystem, and monitor the signal simulation The operating status of each device in the subsystem;

The signal simulation subsystem is composed of several test instruments. Under the control of the simulation control computer, each instrument and equipment output physical signals according to the characteristics of the simulation signal, and at the same time, the operating status of each instrument and equipment in the signal simulation subsystem is regularly reported to the simulation control computer.

The verification control computer communicates with the main control computer to obtain the signal verification strategy, analyzes the signal verification strategy, and obtains the configuration information of the instruments in the signal verification subsystem during signal verification; through communication between the communication network subsystem and the signal verification subsystem, the configuration information Send to the signal verification subsystem, control each instrument and equipment in the signal verification subsystem to collect the physical signal output by the signal simulation subsystem, and send the obtained verification results back to the main control computer;

Under the control of the verification control computer, the signal verification subsystem collects the physical signals output by the signal simulation subsystem, and sends back the collected results and the operating status of each instrument and equipment in the signal verification subsystem to the verification control computer;

The communication network subsystem serves as a communication platform between the main control computer, database server, simulation control computer, verification control computer, instruments in the signal simulation subsystem, and instruments in the signal verification subsystem;

The synchronous triggering subsystem has two functions of clock synchronization and triggering. The clock synchronization realizes the physical clock synchronization of each instrument in the signal simulation subsystem and the signal verification subsystem, and the trigger realizes the signal simulation subsystem and each instrument in the signal verification subsystem. Synchronization of device actions.

The main control computer includes a data acquisition module, a flight reference interpretation module, a data processing module, a strategy generation module, a data sending module, a data receiving module, a data comparison module, a log management module, a report output module, a user management module, and a user interface module; the data acquisition module reads the original flight data from the database server and sends it to the flight parameter interpretation module; the flight parameter interpretation module uses three restoration algorithms according to different parameter types: analog quantity interpretation, discrete quantity interpretation Convert the binary source code value in the original flight data into a decimal engineering value, and send the interpreted data to the data processing module; the data processing module realizes outlier elimination and interpolation smoothing of the interpreted decimal engineering value , After the anti-calculation process, write the data into the database server to form a simulation database, in which outliers are eliminated based on time point jumps, parameter overruns, and rate of change distortion criteria, and the effective flight data at the previous moment are used to replace outliers, and the interpolation is smooth Linear interpolation is performed n times per second, and the inverse calculation process is to convert the obtained decimal engineering value into a physical quantity that can be simulated by the test instrument to drive the test instrument to generate a signal and store it in the database server; complete the "pre-prediction" of flight data through the above steps deal with";

After the user sets the type of flight data recording equipment to be tested, the type of simulation signal, and the start and end time information of the simulation through the user interface module, the strategy generation module generates the corresponding signal simulation strategy and signal verification strategy and transmits them to the data sending module; the data sending module The signal simulation strategy and the signal verification strategy are sent to the simulation control computer and the verification control computer respectively through the communication network subsystem, and the simulation control computer and the verification control computer perform corresponding actions accordingly; Obtain the verification result; the data comparison module compares the coincidence of two sets of flight data; the log management module records the user's operation records; the report output module outputs or prints the flight data selected by the user; the user management module is used to add or delete users and set User rights.

The simulation control computer includes a data receiving module, a data analysis module, a data sending module, a status acquisition module, and a status display module; the data receiving module receives the signal simulation strategy from the main control computer and transmits it to the data analysis module; the data analysis module simulates the signal The strategy is analyzed, and the characteristics of the simulated signal are obtained and sent to the data sending module; the data sending module sends the simulated signal characteristics to the test instrument in the signal simulation subsystem through the communication network subsystem, so that it generates and outputs a physical signal; the state acquisition module receives the signal The simulation subsystem reports to the simulation control computer the instrument, equipment operation status or error report, and displays it on the screen through the status display module.

The signal simulation subsystem includes a data receiving module, a signal generating module, a data discrimination module, and a state transmission module; the data reception module receives the signal simulation control computer through the communication network subsystem and transmits the simulated signal characteristics sent by the computer to the data discrimination module; the data discrimination module Make a judgment on the signal simulation characteristics, and if it matches the capability range of the test instrument, it will be passed to the signal generation module. The signal generation module is a sub-function function body for different instruments driven by Vpp. By calling the signal generation module, the test instrument realizes its own Signal output action; if it exceeds the capability of the test instrument, an error report will be generated and sent to the status sending module. The status sending module will send the error report and the operating status of each instrument and equipment in the simulation subsystem back to the simulation control computer through the communication network subsystem. The signal simulation subsystem consists of several GPIB, VXI, PXI and LXI instruments.

The verification control computer includes a data receiving module, a data analysis module, a data sending module, a data acquisition module, and a status display module; the data receiving module receives the signal verification strategy from the main control computer and transmits it to the data analysis module; the data analysis module analyzes the signal The verification strategy generates instrument configuration information and transmits it to the data sending module; the data sending module sends the instrument configuration information to the signal verification subsystem through the communication network subsystem, and the signal verification subsystem performs corresponding actions accordingly; the data acquisition module receives the verification information on the one hand. The data collected by the subsystem and the verification result are sent to the main control computer through the data sending module, and at the same time, the received signal verification subsystem reports to the verification control computer the instrument, equipment operation status or error report, and displays it on the screen through the status display module .

The signal verification subsystem includes a data receiving module, a configuration identification module, a data acquisition module, and a status sending module; the data receiving module receives the instrument configuration information from the verification control computer and transmits it to the configuration identification module; the configuration identification module judges the validity of the instrument configuration information If it is legal, call the data acquisition module test instrument to realize their respective signal acquisition actions and transfer the collection results to the status sending module; if it is not legal, generate an error report and send it to the status sending module; Reports, data collection results and the operating status of each instrument and equipment in the verification subsystem are sent back to the verification control computer. The signal verification subsystem consists of several GPIB, VXI, PXI and LXI instruments.

The communication network subsystem uses Ethernet as the basic structure to connect the instruments and computers in the system; the GPIB, PXI and VXI instruments realize the connection of the test bus to the Ethernet through the GPIB-LAN gateway, the PXI embedded computer and the VXI-LXI zero-slot controller respectively. Integrated, LXI instruments connect directly to Ethernet. In order to ensure the real-time communication between computers and instruments, Gigabit full-duplex switched Ethernet technology is adopted, and the switch works in a direct forwarding mode.

The synchronous triggering subsystem uses the OCXO or TCXO crystal oscillator in the system as the main clock, adopts the daisy chain clock synchronization method, the clock transmission line adopts a coaxial cable with an impedance of 50Ω, and each instrument shares the clock pulse signal of the main clock through the clock transmission line; Type trigger, connect the programmable interface of the trigger master device to the TRIG IN ports of other instruments through equal-length 50Ω coaxial cables. The daisy-chain clock synchronization method in the synchronous trigger subsystem is that the CLK OUT port of instrument 1 is connected to the CLK IN port of instrument 2, and the CLK OUT port of instrument 2 is connected to the CLK IN port of instrument 3, and so on.

Claims (11)

1. A ground comprehensive test system for flight data recording equipment, characterized in that: comprise 1 main control computer, 1 database server, M simulation control computers, N verification control computers, M signal simulation subsystems, N It consists of a signal verification subsystem, a communication network subsystem and a synchronous trigger subsystem. M is greater than or equal to 1, one signal simulation subsystem corresponds to one simulation control computer, N is greater than or equal to 1, one signal verification subsystem corresponds to one verification control computer; The main control computer imports the original flight data into the database server, forms a simulation database after flight data interpretation, outlier elimination, interpolation smoothing and inverse calculation processing, and generates signal simulation strategies and signal verification strategies according to user selection and configuration , the signal simulation strategy includes instrument information related to the signal simulation subsystem, the start and end time, amplitude, frequency, pulse number, and data packet content related to signal characteristics, and the signal verification strategy includes instrument information related to the signal verification subsystem; The main control computer maintains communication with the simulation control computer and the verification control computer at the same time, controls the task scheduling of the two and receives the status feedback of the two; The database server provides data storage services for the entire system, storing original flight data and simulation data; The simulation control computer communicates with the main control computer to obtain the signal simulation strategy, analyzes the signal simulation strategy, and obtains the characteristics of the simulation signal; at the same time communicates with the signal simulation subsystem to control the operation of various instruments and equipment in the signal simulation subsystem, and monitors The operating status of each device in the signal simulation subsystem; The signal simulation subsystem is composed of several test instruments. Under the control of the simulation control computer, each instrument and equipment output physical signals according to the characteristics of the simulation signal, and at the same time, the operating status of each instrument and equipment in the signal simulation subsystem is regularly reported to Simulation control computer. The verification control computer communicates with the main control computer to obtain the signal verification strategy, analyzes the signal verification strategy, and obtains the configuration information of the instrument in the signal verification subsystem during signal verification; through the communication network subsystem and the signal verification subsystem, the The configuration information is sent to the signal verification subsystem, and each instrument and equipment in the signal verification subsystem is controlled to collect the physical signals output by the signal simulation subsystem, and the obtained verification results are sent back to the main control computer; Under the control of the verification control computer, the signal verification subsystem collects the physical signal output by the signal simulation subsystem, and returns the collected results and the operating status of each instrument and equipment in the signal verification subsystem to the verification control computer; The communication network subsystem is used as a communication platform between the main control computer, the database server, the simulation control computer, the verification control computer, each instrument in the signal simulation subsystem, and each instrument in the signal verification subsystem; The synchronous triggering subsystem has two functions of clock synchronization and triggering, wherein the clock synchronization realizes the physical clock synchronization of each instrument in the signal simulation subsystem and the signal verification subsystem, and the triggering realizes the synchronization of the physical clocks in the signal simulation subsystem and the signal verification subsystem. Synchronization of the actions of various instruments and equipment. 2. A kind of flight data recording equipment ground comprehensive test system according to claim 1, is characterized in that: described main control computer comprises data acquisition module, flight reference interpretation module, data processing module, strategy generation module, data sending module module, data receiving module, data comparison module, log management module, report output module, user management module, and user interface module; the data acquisition module reads the original flight data from the database server and sends it to the flight reference module Interpretation module; said flight reference interpretation module is different with three kinds of reduction algorithms according to parameter type: analog quantity interpretation, discrete quantity interpretation and digital quantity interpretation convert the binary source code value in the original flight data into decimal engineering value, Simultaneously, the data after interpretation is sent to the data processing module; the data processing module realizes the outlier removal, interpolation smoothing and inverse calculation processing of the decimal engineering value after the interpretation, and writes the data into the database server to form a simulation database, wherein the outlier Value elimination is based on the time point jump, parameter overrun, and rate of change distortion criteria to eliminate and replace the outlier value with the valid flight data at the previous moment. The interpolation smoothing is performed linearly interpolating n times per second. The reverse calculation process is to obtain the decimal value The engineering value is converted into a physical quantity that can be simulated by the test instrument to drive the test instrument to generate a signal and store it in the database server; the "preprocessing" of the flight data is completed through the above steps; After the user sets the type of flight data recording equipment to be tested, the type of simulation signal, and the start and end time information of the simulation through the user interface module, the strategy generation module generates the corresponding signal simulation strategy and signal verification strategy and transmits them to the data sending module The data sending module sends the signal simulation strategy and the signal verification strategy to the simulation control computer and the verification control computer respectively through the communication network subsystem, and the simulation control computer and the verification control computer perform corresponding actions accordingly; the data receiving module passes The communication network subsystem obtains the verification result from the verification control computer; the data comparison module compares the coincidence degree of two groups of flight data; the log management module records the user's operation records; the report output module outputs the flight data selected by the user or print; the user management module is used to add or delete users and set user permissions. 3. a kind of flight data recording equipment ground comprehensive test system according to claim 1, is characterized in that: described simulation control computer comprises data receiving module, data analysis module, data transmission module, status acquisition module and status display module The data receiving module receives the signal simulation strategy from the main control computer and transmits it to the data analysis module; the data analysis module analyzes the signal simulation strategy, obtains the characteristics of the simulation signal and sends it to the data transmission module; the data transmission module The characteristics of the simulated signal are sent to the test instrument in the signal simulation subsystem through the communication network subsystem, so that it generates and outputs a physical signal; the state acquisition module receives the signal simulation subsystem and reports to the simulation control computer the instrument, equipment operation status or error report and display on the screen through the status display module. 4. a kind of flight data recording equipment ground comprehensive testing system according to claim 1, is characterized in that: described signal emulation subsystem comprises data receiving module, signal generation module, data discrimination module and state sending module; The data receiving module receives the characteristics of the simulation signal sent by the signal simulation control computer through the communication network subsystem and transmits it to the data discrimination module; the data discrimination module makes a judgment on the signal simulation characteristics, and if it matches the capability range of the test instrument, it is transmitted to the signal generation module, the signal generation module is based on the sub-function function body driven by Vpp for different instruments, by calling the signal generation module, the test instrument realizes its own signal output action; if it exceeds the capability range of the test instrument, an error report is generated and passed to the A status sending module, the status sending module sends back the error report and the running status of each instrument and equipment in the simulation subsystem to the simulation control computer through the communication network subsystem. 5. A kind of flight data recording equipment ground comprehensive test system according to claim 4, is characterized in that: described signal emulation subsystem is made up of several GPIB, VXI, PXI and LXI instruments. 6. A kind of flight data recording equipment ground comprehensive test system according to claim 1, is characterized in that: described verification control computer comprises data receiving module, data analysis module, data transmission module, data acquisition module and status display module module; the data receiving module receives the signal verification strategy from the main control computer and transmits it to the data analysis module; the data analysis module analyzes the signal verification strategy to generate instrument configuration information and transmits it to the data transmission module; the data transmission module communicates The network subsystem sends the instrument configuration information to the signal verification subsystem, and the signal verification subsystem performs corresponding actions accordingly; on the one hand, the data acquisition module receives the data collected by the verification subsystem and sends the verification result to the The main control computer simultaneously receives the instrument and equipment operation status or error report reported by the verification subsystem to the verification control computer, and displays it on the screen through the status display module. 7. A kind of flight data recording equipment ground comprehensive test system according to claim 1, is characterized in that: described signal verification subsystem comprises data receiving module, configuration identification module, data acquisition module and state transmission module; The data receiving module receives the instrument configuration information from the verification control computer and transmits it to the configuration identification module; the configuration identification module judges the legitimacy of the instrument configuration information, and if it is legal, calls the data acquisition module to test the instrument to realize respective signal acquisition actions and The collection result is transmitted to the status transmission module, if it is illegal, an error report is generated and transmitted to the status transmission module; the status transmission module transmits the error report, the data collection result and the operation of each instrument and equipment in the verification subsystem through the communication network subsystem The status is passed back to the verification control computer. 8. A ground comprehensive test system for flight data recording equipment according to claim 7, characterized in that: said signal verification subsystem is made up of several GPIB, VXI, PXI and LXI instruments. 9. A kind of flight data recording equipment ground comprehensive test system according to claim 1, is characterized in that: described communication network subsystem uses Ethernet as infrastructure, connects the instrument and the computer in the system; Wherein GPIB, PXI and VXI The instrument realizes the integration of the test bus to Ethernet through GPIB-LAN gateway, PXI embedded computer and VXI-LXI zero-slot controller, and the LXI instrument is directly connected to Ethernet. 10. A kind of flight data recording equipment ground comprehensive test system according to claim 1, it is characterized in that: described synchronous triggering subsystem adopts OCXO or TCXO crystal oscillator in the system as main clock, adopts daisy chain type clock synchronous mode, The clock transmission line adopts a coaxial cable with an impedance of 50Ω, and each instrument shares the clock pulse signal of the master clock through the clock transmission line; adopts star trigger, and connects the programmable interface of the trigger master device to other instruments through a 50Ω coaxial cable of equal length the TRIG IN port. 11. A kind of flight data recording equipment ground comprehensive test system according to claim 10, it is characterized in that: the daisy-chain type clock synchronous mode is that the CLKOUT port of instrument 1 connects the CLK IN port of instrument 2 in the synchronous trigger subsystem 1. Connect the CLK OUT port of instrument 2 to the CLK IN port of instrument 3, and so on.

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