Spacecraft thermal control automatic test system and method based on structured data

Abstract

The invention relates to a spacecraft thermal control automatic test system and method based on structured data, in the system, a model database is used for storing various structured data parameter packets and providing data support for a data inspection module, a software function automatic test module and a hardware function automatic test module; the data checking module reads related data in the model database, analyzes the obtained data in a structured data format and performs data consistency checking, and is used for checking thermal control parameters of the spacecraft; the software function automatic test module performs automatic test verification on related software logic of the on-board thermal control equipment according to the structural data in the model database, and has a parameter modification and recovery automatic test function, a loop self-management automatic test function, a tracking management automatic test function and a data statistics automatic test function; and the hardware function automatic test module performs automatic test on the thermal response function of the on-satellite heating loop according to the structured data in the model database.

Description

Technical Field

[0001] The invention relates to a spacecraft thermal control automatic test system and method based on structured data, and belongs to the field of spacecraft thermal control test. Background Art

[0002] At present, the spacecraft thermal control mainly completes software and hardware testing during the comprehensive test. In terms of software, most test items rely on the experience of testers, and the temperature difference of the loop is artificially created by special ground inspection equipment to check the control logic of the spacecraft thermal control software. Since the spacecraft thermal control system rarely transmits telemetry periodically, the thermal control status is mainly checked by memory reading during the comprehensive test. Therefore, according to the current test method, testers are required to frequently transmit software parameters, resulting in strong mechanical repeatability of spacecraft thermal control tests and poor test friendliness.

[0003] In terms of hardware, the main test is for the thermal response of the heating circuit to verify whether the corresponding relationship between the heating circuit and the thermistor is correct. The tester needs to connect each circuit one by one and check the temperature change of the corresponding thermistor, so there are also a lot of repetitive operations. In addition, since the number of temperature telemetry monitored by the tester at the same time is limited, if the corresponding relationship between the spacecraft heating circuit and the thermistor is wrong, it is difficult for the tester to find the real working area of ​​the current heating circuit in time, which may easily cause overheating in the undiscovered area, posing a safety risk. Summary of the invention

[0004] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art and to provide a spacecraft thermal control automatic testing system and method based on structured data.

[0005] The technical solution of the present invention is: in the first aspect, a spacecraft thermal control automatic test system based on structured data is provided, including: a model database, a data checking module, a software function automatic test module and a hardware function automatic test module, wherein:

[0006] The model database is used to store various structured data parameter packages and provide data support for the data inspection module, software function automation test module and hardware function automation test module;

[0007] The data check module reads the relevant data in the model database, parses the obtained data in a structured data format and performs a data consistency check for the inspection of spacecraft thermal control parameters;

[0008] The software function automated testing module performs automated testing and verification on the software logic related to the onboard thermal control equipment based on the structured data in the model database. It has automated testing functions for parameter modification and recovery, loop autonomous management, tracking management, and data statistics.

[0009] The hardware function automation test module performs automated testing on the thermal response function of the onboard heating circuit based on the structured data in the model database.

[0010] Preferably, the structured data in the model database is stored in the database in a key-value format, and other modules obtain the corresponding value by calling the key value.

[0011] Preferably, the structured data includes parameter-type structured data and input-type structured data, wherein:

[0012] Parameter-type structured data is used to analyze the thermal control parameters stored in spacecraft, and its data structure is deconstructed and explained. Based on the relevant parameters in each type of structured data, the thermal control parameters of different models of products can be dynamically adapted and analyzed, including thermal sensitivity coefficient packages, threshold parameter packages, relationship parameter packages, state parameter packages, and value parameter packages;

[0013] The input type structured data is the running input of the software function automation test module and the hardware automation test module. Based on the specific input type structured data, the software / hardware function automation test module automatically completes the relevant tests, including parameter check input data, recovery check input data, autonomous management input data, tracking management input data, statistical input data and thermal response input data.

[0014] Preferably, when the data inspection module realizes the inspection function of the spacecraft thermal control parameters, specifically:

[0015] Check the data entries in the input data according to the parameters in the model database, send the spacecraft memory read instructions in sequence, obtain the spacecraft storage thermal control parameters through the remote control and telemetry interface, and compare the stored thermal control parameters with the initial design parameters of the spacecraft software after structured analysis to generate a data interpretation report. If the parameters are consistent, the spacecraft thermal control parameters will be stored in the model database. If the comparison is inconsistent, it will be recorded as abnormal data.

[0016] Preferably, the parameter modification and data recovery automated testing functions in the software function automated testing module are specifically:

[0017] Create a list of important data based on the model database, modify important data parameters in sequence, obtain the current onboard thermal control parameters through the telemetry interface after each modification, parse them according to the parameter structured data format, and confirm that the data parsing results meet the modification expectations; after completing all data modifications, perform thermal control equipment reset, download all thermal control parameters again, and determine whether data recovery is successful through consistency comparison;

[0018] The method for confirming that the parameters are restored to normal is as follows: checking that the recovery check input data in the input structured data has not changed before and after the reset, and restoring the default values ​​of other data items.

[0019] Preferably, the loop autonomous management automated testing function in the software function automated testing module is specifically:

[0020] Read the range of each type of thermistor in the model database, set the loop temperature according to the range, transmit the thermal control parameters to check the thermistor status and the on-off status of the heating circuit in the most recent cycle, and check the onboard software logic.

[0021] Preferably, the tracking management automated testing function in the software function automated testing module is specifically:

[0022] Read the tracking management input data from the model database, set the special tracking and temperature control conditions of the spacecraft according to the heating circuit information therein, and autonomously check the correctness of the spacecraft thermal control tracking management function by transmitting the cycle parameters.

[0023] Preferably, the data statistics autonomous testing function in the software function automation testing module is specifically:

[0024] Read the statistical input data of the model database, monitor the statistical packages transmitted by the spacecraft in real time according to the thermal control statistical cycle information therein, set the loop temperature in batches while receiving the thermal control packages, start the temperature setting on the ground synchronously, and compare the ground statistical results with the results transmitted from the satellite after the statistical cycle ends, so as to complete the automatic test of data statistics.

[0025] Preferably, the workflow in the hardware function automation test module is as follows: after starting the thermal response test, a temperature increment range monitoring list is established based on the thermal response input data in the model database, and the temperature changes of all heating circuits within the input parameters are monitored. When the loop temperature of the fastest heating loop exceeds the threshold, the loop is stopped, and data of the fastest heating loop is interpreted. Finally, a data interpretation report is generated to complete the autonomous detection of the thermal response test results.

[0026] Among them, when interpreting the data of the circuit with the fastest temperature rise: if the circuit with the fastest temperature rise meets the corresponding relationship between the heating circuit and the thermistor, the thermal response is correct, otherwise there is a problem with the corresponding relationship.

[0027] In a second aspect, a spacecraft thermal control automation test method based on structured data is provided, comprising:

[0028] Manually edit or reuse various structured data to form a model database;

[0029] Call the data check module to automatically check the spacecraft thermal control storage data;

[0030] Call the software function automation test module to complete the test of spacecraft thermal control important data recovery, loop autonomous management, tracking management and parameter statistics functions;

[0031] According to the implementation progress of the spacecraft thermal control hardware loop, the hardware automation test module is called in batches to complete the thermal response function check of the spacecraft heating loop.

[0032] Compared with the prior art, the present invention has the following advantages:

[0033] (1) The present invention forms a model database by configuring simple parameters, completes accurate analysis of complex thermal control parameters of spacecraft, and performs consistency check with design parameters, eliminating various difficulties in manual analysis and processing, and improving data analysis speed and friendliness;

[0034] (2) The present invention uses structured data to bridge the differences between different types of spacecraft and can achieve adaptive analysis of spacecraft thermal control parameter data;

[0035] (3) The present invention realizes the conversion of natural language into computing language through structured data, and uses software to realize the automated execution and interpretation of various test items of spacecraft thermal control. It does not require test personnel to monitor and perform automated testing of spacecraft thermal control software and hardware, thereby reducing the safety risk of spacecraft heating circuits. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a flow chart of the operation of the data checking module of the present invention;

[0037] Figure 2 This is a flow chart of the parameter modification and data recovery automatic test function operation of the present invention;

[0038] Figure 3 This is a flow chart of the operation of the loop self-management automated testing function of the present invention;

[0039] Figure 4 This is a flow chart showing the operation of the tracking management automated testing function of the present invention;

[0040] Figure 5 It is a flow chart of the data statistics automatic test function operation of the present invention;

[0041] Figure 6 This is a flowchart of the operation of the hardware function automatic test module of the present invention. DETAILED DESCRIPTION

[0042] Aiming at the current difficulties in thermal control testing of spacecraft, the present invention performs automatic analysis and comparison of thermal control software parameters based on structured data, adaptively analyzes the downlink thermal control parameters in a certain format for the division coefficient class, threshold class, relationship class, state class and value class, and uses software to complete the tedious operations in the process of thermal control testing of spacecraft. In addition to analyzing data, the present invention stores the input class parameters of spacecraft thermal control automation testing in a structured manner according to the characteristics of the spacecraft model, including parameter inspection input data, recovery inspection input data, autonomous management input data, tracking management input data, statistical input data and thermal response input data. Based on the structured test input data, the software system can automatically execute relevant test functions according to test needs and generate a data interpretation report.

[0043] On the basis of completing the structured analysis of thermal control parameters, the test methods of parameter inspection, parameter modification and data recovery, loop autonomous management, tracking autonomous management, data statistics and thermal response in spacecraft thermal control testing are solidified to form an independently running software testing module. Through the remote control and telemetry interface of the ground test system, the spacecraft thermal control project test is automatically executed according to the structured input data. The software parameters in the test process are analyzed and compared according to the structure, and a data interpretation report is generated to realize software automation to complete the spacecraft thermal control test.

[0044] 1. Structured data design

[0045] The model database is a relational database, which can be divided into parameter structured data and input structured data. Various types of model data are stored in the database in key-value format. Other software modules obtain the corresponding value by calling the key value. Parameter structured data includes the following types: thermal sensitivity division coefficient package, threshold parameter package, relationship parameter package, state parameter package and numerical parameter package.

[0046] The parameter class structured data content is designed as follows:

[0047] 1) Thermal sensitivity graduation coefficient package:

[0048] Table 1 Thermal Sensitivity Grading Coefficient Package Parameters

[0049]

[0050]

[0051] 2)Threshold parameter package:

[0052] Table 2 Threshold class parameter package

[0053]

[0054] 3) Relationship class parameter package:

[0055] Table 3 Relationship class parameter package

[0056]

[0057] 4) State class parameter package:

[0058] Table 4 Status class parameter package

[0059]

[0060]

[0061] 5) Numeric parameter pack:

[0062] Table 5 Numerical parameter package

[0063]

[0064] Input structured data includes the following types: parameter check input data, recovery check input data, autonomous management input data, tracking management input data, statistical input data, and thermal response input data. The content of input structured data is designed as follows:

[0065] 1) Parameter check input

[0066] Table 6 Parameter check input data

[0067]

[0068]

[0069]

[0070]

[0071] 2) Restore and check input data:

[0072] Table 7 Recovery check input data

[0073]

[0074]

[0075] 3) Autonomous management of input data:

[0076] Table 8 Autonomous management input data

[0077] category Property name Sub-attribute name Parameter Explanation key Selfmanage -- Self-management parameters value mesurrange -- Thermistor measurement range

[0078] 4) Track and manage input data:

[0079] Table 9 Tracking management input data

[0080]

[0081] 5) Statistical input data

[0082] Table 10 Statistical input data

[0083]

[0084]

[0085] 6) Thermal response input data

[0086] Table 11 Thermal response input data

[0087]

[0088] 2. Software system composition

[0089] The software system includes a model database, a data check module, a software function automated test module, and a hardware function automated test module. The model database stores basic model data, including model thermal sensitivity coefficient packages, threshold parameter packages, relationship parameter packages, state parameter packages, and numerical parameter package formats. In the early stage of model testing, the original data on the satellite can be parsed and stored in the database by configuring the basic package format and downloading the on-board parameters for subsequent testing.

[0090] The data inspection module mainly establishes a connection with the ground test system through the remote control and telemetry interface, obtains various on-board parameter packages in the model database in turn, parses the parameter packages sent by the ground test system according to the structured data design and compares them with the design files, and generates a data interpretation report.

[0091] The software function automation test module performs automated testing and verification of the software logic related to the onboard thermal control equipment based on structured data, including parameter modification and recovery, loop autonomous management and parameter statistics functions;

[0092] The hardware function automation test module automatically tests the thermal response function of the onboard heating circuit based on structured data and temperature increment range monitoring algorithm.

[0093] 3. Data inspection module

[0094] The data check module first generates a customized parameter table based on the parameter check data in the input structured data, as shown in the following table. Fill in the design values ​​into the table as needed, and the data check module stores the initial design parameters in the model database in the structured data format.

[0095] Table 12 Thermistor related parameters

[0096]

[0097]

[0098] Table 13 Heating circuit related parameters

[0099]

[0100] After the initial design parameters are stored in the database, the data check module establishes a connection with the ground test system, obtains the relevant parameters stored in the onboard thermal control equipment through the remote control interface, and parses the onboard parameters according to the parameter structured data format, and compares them with the initial design parameters in the database to generate a data interpretation report. The operation process of the data check module is shown in the attached figure. Figure 1 shown.

[0101] The data inspection module parses the spacecraft thermal control parameters in a structured data format and stores them in the model database. The spacecraft storage thermal control parameters are obtained through the remote control and telemetry interface. The stored thermal control parameters are structured and parsed, and then compared with the initial design parameters of the spacecraft software to generate a data interpretation report. If the parameters are consistent, the spacecraft thermal control parameters are stored in the model database. If they are inconsistent, they are recorded as abnormal data; 4. Software function automation test module

[0102] The software function automation testing module has the following functions:

[0103] 1) Parameter modification and data recovery automatic test function: According to the recovery and inspection input data in the model database, the spacecraft thermal control related data is randomly modified, and after the software is reset, the spacecraft thermal control parameters are again downloaded for analysis and inspection, and the success of data recovery is determined through consistency comparison; Specifically:

[0104] After completing the initial parameter check, the parameter modification and data recovery automated test will traverse and modify the thermistor division coefficient, statistical status, detection status, heating circuit temperature control threshold, control status, corresponding relationship, special management function enable / disable status, etc. in turn. After each modification, the current on-board thermal control equipment parameters are obtained through the telemetry interface, and parsed according to the parameter class structured data format to check that the data parsing results meet the modification expectations. After all data modifications are completed, the thermal control equipment is cut off and reset, and all thermal control parameters are downloaded again. Check that the data items in the recovery check class in the input class structured data (recovery check input data) have not changed before and after the reset and cutting, and other data items are restored to the default values. The operation flow of the parameter modification and data recovery automated test function is as shown in the attached figure. Figure 2 shown.

[0105] 2) Loop autonomous management automated test function: Set the temperature of a specific loop based on the heating loop information in the autonomous management input data, and autonomously check the correctness of the spacecraft thermal control autonomous management function by transmitting cycle parameters; Specifically:

[0106] According to the thermistor measurement range in the self-management category of the input structured data and the thermistor related parameters in the database, the heating circuit temperature is set according to the thermistor range through the remote control interface, the thermistor status and the on-off status of the heating circuit in the most recent cycle are checked, and the on-board software logic is checked. The operation process of the loop self-management automatic test function is as shown in the attached figure. Figure 3 shown.

[0107] 3) Tracking management automated test function: Set the spacecraft's special tracking temperature control conditions based on the heating circuit information in the tracking management input data, and autonomously check the correctness of the spacecraft's thermal control tracking management function by transmitting cycle parameters; Specifically:

[0108] According to the threshold parameters in the tracking management class in the input structured data and the thermistor parameters in the database, the thermistor temperature is changed through the remote control interface so that the temperature calculated by the onboard thermal control device exceeds the threshold range. The thermistor status and the on-off status of the heating circuit in the most recent cycle are checked, and the onboard software logic is checked. The operation process of the tracking management automated test function is shown in the attached figure. Figure 4 shown.

[0109] 4) Data statistics automated testing function: Based on structured input and the statistical cycle of the spacecraft thermal control software, batch set the spacecraft loop temperature to autonomously check the correctness of the spacecraft statistical results; specifically:

[0110] According to the statistical cycle parameters in the statistical class of the input structured data, the satellite traditional metering package is received in real time. After receiving it, the ground starts the temperature and duty cycle statistics at the same time, monitors the temperature change on the satellite in real time, sets the loop temperature in batches while receiving the traditional metering package, and starts the temperature setting on the ground synchronously. After the statistical cycle ends, the ground statistical results are compared with the satellite uplink and downlink results, thus completing the automatic test of data statistics. The operation process of the data statistics automatic test function is as shown in the attached figure. Figure 5 shown.

[0111] 5. Hardware function automated testing module

[0112] The hardware function automation test module mainly completes the thermal response function test of the spacecraft heating circuit. According to the structured input data, the corresponding safety switch is turned on in sequence according to the circuit, and the circuit is set to normally open. At the same time, the temperature of all temperature measurement circuits is monitored, and the circuit with the fastest heating is sorted. When the temperature of the circuit exceeds the exit threshold, the heating is stopped. If the circuit with the fastest heating meets the corresponding relationship between the heating circuit and the thermistor, the thermal response is correct. Otherwise, there is a problem with the corresponding relationship. Finally, a data interpretation report is generated. The operation process of the hardware function automation test module is as follows: Figure 6 shown.

[0113] A spacecraft thermal control automated testing method based on structured data, comprising:

[0114] Functional test of spacecraft thermal control software: Functional test of spacecraft thermal control software is mainly divided into two categories. The first is parameter check, which includes initial parameter check and important data recovery check; the second is temperature control algorithm test; the former requires parsing a large amount of data, and the latter requires simulating temperature control conditions by setting various ambient temperatures. Based on the above content, the test method using the automated test system is as follows: first, manually edit or reuse various structured data to form a model database; secondly, call the data check module to automatically download and compare the spacecraft thermal control storage data, and then call the software function automated test module again to complete the test of important spacecraft thermal control data recovery, loop autonomous management, tracking management and parameter statistics functions. Finally, according to the implementation progress of the spacecraft thermal control hardware loop, call the hardware automated test module in batches to complete the thermal response function check of the spacecraft heating loop.

[0115] The contents not described in detail in the specification of the present invention belong to the prior art known to the professional and technical personnel in this field.

Claims

1. A spacecraft thermal control automated test system based on structured data, characterized in that include: Model database, data checking module, software function automated testing module and hardware function automated testing module, including: The model database is used to store various structured data parameter packages and provide data support for the data inspection module, software function automation test module and hardware function automation test module; The data check module is used to check the thermal control parameters of the spacecraft. After reading the relevant data in the model database, the obtained data is parsed in a structured data format and the data consistency is checked; The software function automated testing module performs automated testing and verification on the software logic related to the onboard thermal control equipment based on the structured data in the model database. It has automated testing functions for parameter modification and recovery, loop autonomous management, tracking management, and data statistics. The hardware function automation test module performs automated testing on the thermal response function of the onboard heating circuit based on the structured data in the model database.

2. The spacecraft thermal control automatic test system based on structured data according to claim 1, characterized in that: The structured data in the model database is stored in the database in key-value format, and other modules obtain the corresponding value by calling the key value.

3. The spacecraft thermal control automatic test system based on structured data according to claim 1, characterized in that: Structured data includes parameter structured data and input structured data, where: Parameter-type structured data is used to analyze the thermal control parameters stored in spacecraft, and its data structure is deconstructed and explained. Based on the relevant parameters in each type of structured data, the thermal control parameters of different models of products can be dynamically adapted and analyzed, including thermal sensitivity coefficient packages, threshold parameter packages, relationship parameter packages, state parameter packages, and value parameter packages; The input type structured data is the running input of the software function automation test module and the hardware automation test module. Based on the specific input type structured data, the software / hardware function automation test module automatically completes the relevant tests, including parameter check input data, recovery check input data, autonomous management input data, tracking management input data, statistical input data and thermal response input data.

4. The spacecraft thermal control automatic test system based on structured data according to claim 1, characterized in that: The data check module implements the spacecraft thermal control parameter check function as follows: Check the data entries in the input data according to the parameters in the model database, send the spacecraft memory read instructions in sequence, obtain the spacecraft storage thermal control parameters through the remote control and telemetry interface, and compare the stored thermal control parameters with the initial design parameters of the spacecraft software after structured analysis to generate a data interpretation report. If the parameters are consistent, the spacecraft thermal control parameters will be stored in the model database. If the comparison is inconsistent, it will be recorded as abnormal data.

5. The spacecraft thermal control automatic test system based on structured data according to claim 1, characterized in that: The parameter modification and data recovery automated testing functions in the software function automated testing module are as follows: Create a list of important data based on the model database, modify important data parameters in sequence, obtain the current onboard thermal control parameters through the telemetry interface after each modification, parse them according to the parameter structured data format, and confirm that the data parsing results meet the modification expectations; after completing all data modifications, perform thermal control equipment reset, download all thermal control parameters again, and determine whether data recovery is successful through consistency comparison; The method for confirming that the parameters are restored to normal is as follows: checking the recovery check input data in the input structured data to see if it has not changed before and after the reset, and restoring the default values ​​for other data items.

6. The spacecraft thermal control automatic test system based on structured data according to claim 1, characterized in that: The loop self-management automated testing functions in the software function automated testing module are as follows: Read the range of each type of thermistor in the model database, set the temperature of the heating circuit according to the range, transmit the thermal control parameters to check the thermistor status and the on-off status of the heating circuit in the most recent cycle, and check the on-board software logic.

7. The spacecraft thermal control automatic test system based on structured data according to claim 1, characterized in that: The tracking management automated testing functions in the software function automated testing module are as follows: Read the tracking management input data from the model database, set the special tracking and temperature control conditions of the spacecraft according to the heating circuit information therein, and autonomously check the correctness of the spacecraft thermal control tracking management function by transmitting the cycle parameters.

8. The spacecraft thermal control automatic test system based on structured data according to claim 1, characterized in that: The data statistics autonomous testing functions in the software function automation testing module are as follows: Read the statistical input data of the model database, monitor the statistical packages transmitted by the spacecraft in real time according to the thermal control statistical cycle information therein, set the loop temperature in batches while receiving the thermal control packages, start the temperature setting on the ground synchronously, and compare the ground statistical results with the results transmitted from the satellite after the statistical cycle ends, so as to complete the automatic test of data statistics.

9. The spacecraft thermal control automatic test system based on structured data according to claim 1, characterized in that: The workflow in the hardware function automation test module is as follows: after starting the thermal response test, a temperature increment range monitoring list is established based on the thermal response input data in the model database, and the temperature changes of all heating circuits within the input parameters are monitored. When the loop temperature of the fastest heating loop exceeds the threshold, the loop is stopped, and data of the fastest heating loop is interpreted. Finally, a data interpretation report is generated to complete the autonomous detection of the thermal response test results. Among them, when interpreting the data of the circuit with the fastest heating up: if the circuit with the fastest heating up meets the corresponding relationship between the heating circuit and the thermistor, the thermal response is correct, otherwise there is a problem with the corresponding relationship.

10. A spacecraft thermal control automated testing method based on structured data, characterized in that include: Manually edit or reuse various structured data to form a model database; Call the data check module to automatically check the spacecraft thermal control storage data; Call the software function automation test module to complete the test of spacecraft thermal control important data recovery, loop autonomous management, tracking management and parameter statistics functions; According to the implementation progress of the spacecraft thermal control hardware loop, the hardware automation test module is called in batches to complete the thermal response function check of the spacecraft heating loop.

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