A wireless test acquisition and evaluation system and method for patrol vehicle transfer mechanism

Abstract

A wireless test acquisition and evaluation system and method for a patroller transfer mechanism, belonging to the field of testing technology, addresses the lack of such a system and method. The system of the present invention comprises a sensor acquisition module, a wireless transmission module, and a host PC system. The arrangement and connection method of the sensors in the sensor acquisition module relative to the transfer mechanism are also provided. The host PC system includes data analysis and evaluation functions, which include obtaining single-factor regularity results for key measurement parameters of a single variable in the experimental conditions and operating conditions of the transfer mechanism; generating a parameter coupling orthogonal test table based on the key test parameters of the transfer mechanism and the operating condition test parameters; and providing a multi-factor orthogonal test scheme. Through multi-factor orthogonal test testing, a multi-factor level trend diagram is obtained, thereby obtaining the combined parameters of the maximum possible impact of the measured value during the transfer mechanism test. The present invention is suitable for testing patroller transfer mechanisms.

Description

Technical Field

[0001] The present application relates to the field of testing technology, and in particular to the testing of a patrol vehicle transfer mechanism. Background Art

[0002] The rover transfer mechanism is a space-based mechanism that performs rover transfer and release missions in the extraterrestrial space environment. During the design and implementation phases, whether the transfer mechanism meets strict engineering constraints and design specifications, and whether it performs transfers stably and reliably in uncertain environments, is crucial to the rover's successful mission. Therefore, testing the mechanism during the design and implementation phases is particularly important. Currently, little research exists on test, acquisition, and evaluation systems for rover transfer mechanisms. Summary of the Invention

[0003] The purpose of the present invention is to solve the problem of the lack of a test acquisition and evaluation system and method for a patroller transfer mechanism, and to provide a wireless test acquisition and evaluation system and method for a patroller transfer mechanism.

[0004] The present invention is achieved through the following technical solutions. In one aspect, the present invention provides a wireless test acquisition and evaluation system for a patrol transfer mechanism, the system comprising: a sensor acquisition module, a wireless transmission module and a host computer system;

[0005] The sensor acquisition module is used to collect test data of the transfer mechanism, and includes a plurality of sensors, which are respectively arranged at corresponding parts of the transfer mechanism;

[0006] The wireless transmission module is used to realize the wireless transmission of signals and data between the host PC system and the sensor acquisition module;

[0007] The host PC system is used to control the sensors, transmission system and transfer mechanism, as well as data acquisition, processing and test result evaluation, specifically including: initialization and status monitoring, test process selection and parameter setting, data acquisition, data analysis and evaluation, and experimental log and report;

[0008] The initialization and status monitoring is used to realize the joint communication of the plurality of sensors, and is also used to determine the status of the transfer mechanism to provide prompts and alarms;

[0009] The test process selection and parameter setting are used to select and complete different process stages of unlocking, lifting, lowering, releasing or retracting, and to test each process separately or in combination; the parameter setting realizes the test task of the transfer mechanism in different postures, and the parameters include release speed, pitch and roll angles of the lander attitude, linkage rope preload and the center of mass of the viewer;

[0010] The data acquisition is used to complete channel calibration, data adaptive sampling processing, graphic and data display and data parameter setting;

[0011] The data analysis and evaluation is used to complete the analysis of relevant test data and draw conclusions based on theoretical analysis and reference to simulation data, specifically including: obtaining the single-factor law results of the single variable of the transfer mechanism experimental conditions and working conditions on the key measurement parameters; generating a parameter coupling orthogonal test table based on the key test parameters and working condition test parameters of the transfer mechanism, and providing a multi-factor orthogonal test plan, and obtaining a multi-factor level trend chart through multi-factor orthogonal test testing, and obtaining the combined parameters of the maximum possible influence of the measured quantity in the transfer mechanism test process; through comparative analysis with simulation data, combined with analysis of single-factor and multi-factor test results, obtaining the data rationality of the transfer mechanism test, the influence of single factors on the measured quantity in the experimental process, and the evaluation of the maximum possible influence of multiple factors on the measured quantity.

[0012] Furthermore, the sensor acquisition module includes a patch strain sensor, a tension sensor, an angle sensor and a torque sensor.

[0013] Furthermore, the test data includes stress, strain, tension, pressure and angle.

[0014] Furthermore, the plurality of sensors are respectively arranged at corresponding positions of the transfer mechanism, specifically including:

[0015] The tension sensors are used to obtain the tension of the release rope that suspends the transfer mechanism in the transfer mechanism and the tension of the attitude adjustment rope that adjusts the attitude of the rover, and are respectively arranged at the connection between the release rope and the swing arm of the flip mechanism and at the midpoint of the attitude adjustment rope between the rotating hinge of the transfer mechanism and the linkage mechanism; the patch strain sensors are used to obtain the strains at the key positions of the transfer mechanism structure, and are respectively arranged at the midpoint between the rotating hinge and the linkage mechanism on the main swing frame, the connection support between the lower rotating hinge and the lander, the connection between the locking mechanism and the lander, and the midpoint of the swing arm; the angle sensors are used to obtain the pitch attitude angle of the rover, the attitude angle of the lander and the flip angle of the transfer mechanism, and are respectively arranged at the side of the lander where the transfer mechanism is not installed, the horizontal plane above the rover, and the position where the transfer mechanism is installed without interference with the rover surface; the torque sensors obtain the torque at the key positions of the transfer mechanism structure, and are respectively arranged at the hinge axis below the transfer mechanism and the swing axis of the flip mechanism above.

[0016] Furthermore, the wireless transmission of signals and data between the host PC system and the sensor acquisition module specifically includes: establishing a multi-channel synchronous acquisition communication method according to the number and type of sensors in the sensor acquisition module.

[0017] Furthermore, the achieving of joint communication among the plurality of sensors specifically includes:

[0018] By establishing a database of wireless transmission module group IP address information and acquisition channel information, the corresponding relationship between the two is obtained, and multi-channel synchronous acquisition communication is established with the wireless transmission module;

[0019] The database establishment step includes: establishing a database file table, entering the current IP address of each wireless transmission module and the corresponding number of acquisition channels to complete data storage; completing the registration of all acquisition channels, the process is similar to address registration; completing the registration of specific acquisition information of each channel; reading the address and channel name into two enumerations, selecting the wireless transmission module and the channel corresponding to the address, and entering the channel-specific information corresponding to the channel to complete data storage; wherein the same IP can correspond to multiple channels, but only one IP can be selected for one channel.

[0020] Furthermore, the completion of channel calibration, data adaptive sampling processing, graphic and data display, and data parameter setting specifically includes: the channel calibration, through the comparison and calculation of multiple groups of actual values ​​and test values, obtains the calibration correction relationship of each channel sensor, and records and stores it; the data adaptive sampling processing analyzes data characteristics based on pre-imported simulation data, and adaptively adjusts the sampling and storage frequency of the data; the setting of data parameters saves the set parameters in each channel at the same time during the process of saving the collected data.

[0021] In another aspect, the present invention provides a wireless test collection and evaluation method for a patrol vehicle transfer mechanism based on the system described above, the method comprising:

[0022] S1. Run the host PC system; complete the initialization system hardware and communication test;

[0023] S2. Power on the transfer mechanism slow-release drive device, complete lander preparation, power off and lock the slow-release drive and rover electromagnetic locking device, and prepare the rover prototype for quality.

[0024] S3. Setting parameters according to test requirements, including operating condition control parameters, input ranges, and key test parameters, to adjust the transfer mechanism operating conditions and monitor;

[0025] S4, real-time testing, data recording, angle status monitoring and real-time data display;

[0026] S5, data table, curve display data storage and experimental log record;

[0027] S6. Data analysis, experimental evaluation and experimental report.

[0028] Furthermore, S1 includes:

[0029] S1.1. Create a new TDMMS database file table IPAddress and input the IP address of each group of wireless transmission modules and the corresponding number of sensor acquisition channels;

[0030] S1.2. Complete the registration of all channels;

[0031] S1.3. Complete the registration of the specific information of each channel, read the IP address and channel name into the two enumerations, select the channel corresponding to the IP address, and enter the specific channel information corresponding to the channel; the same IP can correspond to multiple channels, but only one IP can be selected for a channel;

[0032] S1.4. Establish TCP listening between the upper system and the wireless transmission module, and establish a multi-address TCP synchronous connection through the wireless transmission module IP registered in S1.1, S1.2 and S1.3 and the collection channel information.

[0033] Furthermore, S4 specifically includes:

[0034] S4.1. Complete simulation calculation of key parameters based on sensor layout;

[0035] S4.2. Extract simulation data features through simulation data and establish regular acquisition frequency;

[0036] Determine the key steps in the acquisition process, specifically including: the acquisition density in the left and right neighborhoods of the extreme point position is much greater than that of other positions, and the acquisition density in the left and right neighborhoods of the slope mutation position is much greater than that of other positions, and control the multi-channel synchronous communication established by S1 to adjust the acquisition frequency at the same time;

[0037] S4.3. Set the operating parameters, key test parameters, and their input ranges according to S3. Divide the operating conditions into equal intervals, bisection intervals, golden section intervals, and Fibonacci intervals within the operating parameter input range. Automatically generate a single-factor test plan and table for each operating parameter. Bisection intervals should be used when the operating parameter range is large and the standard operating condition is unknown. Golden section intervals should be used when the measurement system requires high accuracy and the key parameter curve has a single peak. Fibonacci intervals should be used when the operating parameter value is an integer or a finite number. Equal intervals should be used under normal conditions.

[0038] S4.4. According to the single factor test plan generated in S4.3, determine the number of factors and levels of operating parameters and key parameters, establish orthogonal relationships, and generate relevant orthogonal tables L based on orthogonality calculations. n (a p ), where P is the number of columns in the orthogonal table, n is the number of rows in the orthogonal table, and a is the number of levels; a multi-factor test plan and a multi-factor orthogonal test table are generated through the orthogonal table and the operating parameters and key parameters;

[0039] S4.5. Read all sensor acquisition channels in S1 and extract channel-specific information; complete channel calibration testing, input the actual values ​​and test values ​​of multiple sensor groups into the software system data acquisition module, calculate the actual value and test value curve coefficients K and B, and input the results into the database; automatically calibrate the multi-channel sensor data based on the data curve coefficients K and B in the database;

[0040] S4.6 completes the input of simulation data according to the registered channel name, and adaptively adjusts the sensor acquisition frequency according to the characteristics of the simulation data curve.

[0041] Beneficial effects of the present invention:

[0042] 1. Complete the entire test process of the transfer mechanism's deployment and transfer process in four postures: nominal, rearward, forward, and sideways. Rationally design and layout the sensor acquisition module to collect key parameters such as drive component parameters, rope tension, angle, and strain at different positions of the mechanism during the test process;

[0043] 2. Ability to reasonably adjust data density based on simulation data, accurately and efficiently complete data processing, and complete preprocessing and storage of key measured data corresponding to various experimental parameters and test conditions;

[0044] 3. Ability to perform single-factor analysis between relevant parameters based on the comparison of collected data and simulation results, generate parameter coupling orthogonal test tables based on the key test parameters of the transfer mechanism and the working condition test parameters, and provide multi-factor orthogonal test schemes. Through multi-factor orthogonal test testing and result analysis, it is possible to obtain multi-factor level trend charts and obtain the combined parameters with the maximum possible impact of the measured value (such as maximum load) during the transfer mechanism test;

[0045] 4. Be able to provide an assessment of the rationality of the transfer mechanism test data, the impact of a single factor on the measured quantity during the experimental process, and the maximum possible impact of multiple factors on the measured quantity by comparing and analyzing the test data with the simulation data and combining the results of single-factor and multi-factor test analysis.

[0046] The present invention is suitable for testing the transfer mechanism of a patrol vehicle, and can accurately and conveniently complete the key parameter test collection and evaluation functions of the entire transfer characteristic test process of the transfer mechanism, obtain an evaluation of the rationality of the test data under the transfer mechanism test conditions, the regularity of the test parameters, and the performance status of the test parts, etc., verify the correctness of the transfer mechanism design principle, the rationality and matching of the component design, and provide sufficient data basis for further discovering design deficiencies and improving and perfecting product design. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0048] Figure 1 Schematic diagram of the hardware structure of the wireless test acquisition and evaluation system of the patrol transfer mechanism of the present invention;

[0049] Figure 2 A diagram showing the deployment of experimental sensors for the measurement system of the present invention;

[0050] Figure 3 It is a flow chart of the wireless test collection and evaluation system of the patrol transfer mechanism of the present invention;

[0051] Figure 4 This is a hardware structure diagram of the wireless test acquisition and evaluation system of the patrol transfer mechanism of the present invention. DETAILED DESCRIPTION

[0052] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention.

[0053] Embodiment 1: A wireless test acquisition and evaluation system for a patrol vehicle transfer mechanism, the system comprising: a sensor acquisition module, a wireless transmission module and a host computer system;

[0054] The sensor acquisition module is used to collect test data of the transfer mechanism, and includes a plurality of sensors, which are respectively arranged at corresponding parts of the transfer mechanism;

[0055] The wireless transmission module is used to realize the wireless transmission of signals and data between the host PC system and the sensor acquisition module;

[0056] The host PC system is used to control the sensors, transmission system and transfer mechanism, as well as data acquisition, processing and test result evaluation, specifically including: initialization and status monitoring, test process selection and parameter setting, data acquisition, data analysis and evaluation, and experimental log and report;

[0057] The initialization and status monitoring is used to realize the joint communication of the plurality of sensors, and is also used to determine the status of the transfer mechanism to provide prompts and alarms;

[0058] The test process selection and parameter setting are used to select and complete different process stages of unlocking, lifting, lowering, releasing or retracting, and to test each process separately or in combination; the parameter setting realizes the test task of the transfer mechanism in different postures, and the parameters include release speed, pitch and roll angles of the lander attitude, linkage rope preload and the center of mass of the viewer;

[0059] The data acquisition is used to complete channel calibration, data adaptive sampling processing, graphic and data display and data parameter setting;

[0060] The data analysis and evaluation is used to complete the analysis of relevant test data and draw conclusions based on theoretical analysis and reference to simulation data, specifically including: obtaining the single-factor law results of the single variable of the transfer mechanism experimental conditions and working conditions on the key measurement parameters; generating a parameter coupling orthogonal test table based on the key test parameters and working condition test parameters of the transfer mechanism, and providing a multi-factor orthogonal test plan, and obtaining a multi-factor level trend chart through multi-factor orthogonal test testing, and obtaining the combined parameters of the maximum possible influence of the measured quantity in the transfer mechanism test process; through comparative analysis with simulation data, combined with analysis of single-factor and multi-factor test results, obtaining the data rationality of the transfer mechanism test, the influence of single factors on the measured quantity in the experimental process, and the evaluation of the maximum possible influence of multiple factors on the measured quantity.

[0061] In this embodiment, the entire test process of the transfer mechanism's deployment and transfer process in four postures, namely nominal, rearward, forward, and sideways, can be completed. The sensor acquisition module is rationally designed and arranged to collect key parameters such as drive component parameters, rope tension, angle, and strain at different positions of the mechanism during the test process;

[0062] Ability to reasonably adjust data density based on simulation data, accurately and efficiently complete data processing, and complete preprocessing and storage of key measured data corresponding to various experimental parameters and test conditions;

[0063] By comparing the collected data with the simulation results, it is possible to conduct single-factor analysis between related parameters, generate a parameter coupling orthogonal test table based on the key test parameters of the transfer mechanism and the working condition test parameters, and provide a multi-factor orthogonal test plan. Through multi-factor orthogonal test testing and result analysis, it is possible to obtain a multi-factor level trend chart and obtain the combined parameters of the maximum possible impact of the measured value (such as maximum load) during the transfer mechanism test;

[0064] By comparing and analyzing the test data with the simulation data and combining the results of single-factor and multi-factor test analysis, it is possible to provide an assessment of the rationality of the data of the transfer mechanism test, the influence of a single factor on the measured quantity during the experimental process, and the maximum possible influence of multiple factors on the measured quantity.

[0065] Implementation method 2: This implementation method further defines the wireless test acquisition and evaluation system for the patrol transfer mechanism described in implementation method 1. In this implementation method, the sensor acquisition module is further defined, specifically including:

[0066] The sensor acquisition module includes a patch-type strain sensor, a tension sensor, an angle sensor and a torque sensor.

[0067] In this embodiment, appropriate sensors are selected to collect key parameters such as drive component parameters, rope tension, angle, and strain at different positions of the mechanism during the test process.

[0068] Implementation method 3: This implementation method further limits the wireless test, collection, and evaluation system for the patrol vehicle transfer mechanism described in implementation method 2. In this implementation method, the test data is further limited, specifically including:

[0069] The test data include stress, strain, tension, pressure and angle.

[0070] The test data of this embodiment is used to directly or indirectly reflect key parameters such as drive component parameters, rope tension, angle, and strain at different positions of the mechanism.

[0071] Embodiment 4: This embodiment further defines the wireless test, acquisition, and evaluation system for the patrol vehicle transfer mechanism described in Embodiment 3. In this embodiment, the plurality of sensors are arranged at corresponding positions of the transfer mechanism, and further defines the following:

[0072] The tension sensors are used to obtain the tension of the release rope that suspends the transfer mechanism in the transfer mechanism and the tension of the attitude adjustment rope that adjusts the attitude of the rover, and are respectively arranged at the connection between the release rope and the swing arm of the flip mechanism and at the midpoint of the attitude adjustment rope between the rotating hinge of the transfer mechanism and the linkage mechanism; the patch strain sensors are used to obtain the strains at the key positions of the transfer mechanism structure, and are respectively arranged at the midpoint between the rotating hinge and the linkage mechanism on the main swing frame, the connection support between the lower rotating hinge and the lander, the connection between the locking mechanism and the lander, and the midpoint of the swing arm; the angle sensors are used to obtain the pitch attitude angle of the rover, the attitude angle of the lander and the flip angle of the transfer mechanism, and are respectively arranged at the side of the lander where the transfer mechanism is not installed, the horizontal plane above the rover, and the position where the transfer mechanism is installed without interference with the rover surface; the torque sensors obtain the torque at the key positions of the transfer mechanism structure, and are respectively arranged at the hinge axis below the transfer mechanism and the swing axis of the flip mechanism above.

[0073] In this embodiment, the sensor acquisition module is rationally designed and arranged to collect key parameters such as drive component parameters, rope tension, angle, and strain at different positions of the mechanism during the test process.

[0074] Embodiment 5: This embodiment further limits the wireless test, acquisition, and evaluation system for the patrol transfer mechanism described in Embodiment 1. In this embodiment, the wireless transmission of signals and data between the host PC system and the sensor acquisition module is further limited, specifically including:

[0075] A multi-channel synchronous acquisition communication method is established according to the number and type of sensors in the sensor acquisition module.

[0076] In this embodiment, a wireless transmission module is used to realize wireless transmission between the host computer PC system and the transfer mechanism sensor acquisition module, thereby realizing wireless communication of signals and data.

[0077] Using a wireless transmission module as a carrier and TCP communication as a foundation, a multi-channel synchronous acquisition and communication method for multiple groups of various types of sensors, such as tension sensors, stress and strain sensors, and angle sensors, has been established. The wireless transmission module has multiple expansion interfaces for increasing the number of test channels, making it easy to add and change test plans at any time.

[0078] The wireless transmission module not only meets the functional performance requirements of the test system, but also can greatly avoid the additional load and sensor interference generated by the wired system, making the system implementation simpler and more convenient.

[0079] Embodiment 6: This embodiment further limits the wireless test, acquisition, and evaluation system for the patrol vehicle transfer mechanism described in Embodiment 1. In this embodiment, further limitations are made on the realization of the joint communication of the plurality of sensors, specifically including:

[0080] By establishing a database of wireless transmission module group IP address information and acquisition channel information, the corresponding relationship between the two is obtained, and multi-channel synchronous acquisition communication is established with the wireless transmission module;

[0081] The database establishment step includes: establishing a database file table, entering the current IP address of each wireless transmission module and the corresponding number of acquisition channels to complete data storage; completing the registration of all acquisition channels, the process is similar to address registration; completing the registration of specific acquisition information of each channel; reading the address and channel name into two enumerations, selecting the wireless transmission module and the channel corresponding to the address, and entering the channel-specific information corresponding to the channel to complete data storage; wherein the same IP can correspond to multiple channels, but only one IP can be selected for one channel.

[0082] In this embodiment, by establishing a database of wireless transmission module group IP address information and acquisition channel information, the corresponding relationship between the two is obtained and input into the software system, and multi-channel synchronous acquisition communication is established with the wireless transmission module to achieve synchronous data acquisition that matches the test process with high precision, providing a basis for subsequent data processing and evaluation of the test process.

[0083] Embodiment 7: This embodiment further defines the wireless test acquisition and evaluation system for the patrol transfer mechanism described in Embodiment 1. In this embodiment, the completion of channel calibration, data adaptive sampling processing, graphic and data display, and data parameter setting are further defined, specifically including:

[0084] The channel calibration obtains the calibration correction relationship of each channel sensor by comparing and calculating multiple sets of actual values ​​and test values, and records and stores them; the data adaptive sampling processing analyzes data characteristics based on pre-imported simulation data and adaptively adjusts the sampling and storage frequency of the data; the data parameter setting saves the set parameters in each channel at the same time when saving the collected data.

[0085] In this embodiment, the sampling and storage frequency of data is adaptively adjusted to increase the data density at key moments or key stages of the test, while reducing the density of smoothly changing data, saving storage space and achieving adaptive collection.

[0086] Embodiment 8: This embodiment is based on a specific embodiment of a wireless test, acquisition, and evaluation system for a patrol vehicle transfer mechanism as described above, including:

[0087] The system includes two parts: a hardware system and a software system.

[0088] like Figure 1 As shown in the figure, the hardware system includes a sensor acquisition module, a wireless transmission module and a host PC system.

[0089] The sensor acquisition module includes a tension sensor and an angle sensor, which are used to measure stress, strain, tension, pressure, angle and other measured quantities respectively.

[0090] Sensor layout and connection method is as follows Figure 1 As shown, various sensors are arranged and connected at corresponding parts of the transfer mechanism to achieve the function of correctly measuring the measured quantity or the measured component.

[0091] The tension sensors are used to obtain the tension of the release rope (S101) that suspends the transfer mechanism in the transfer mechanism and the tension of the attitude adjustment rope (S102, S103) that adjusts the attitude of the rover. They are respectively arranged at the connection between the release rope and the swing arm of the flip mechanism and at the midpoint of the attitude adjustment rope between the transfer mechanism's rotary hinge and the linkage mechanism; the patch strain sensors are used to obtain the strain of the key positions of the transfer mechanism structure. They are respectively arranged at the midpoint between the rotary hinge and the linkage mechanism on the main swing frame (F201), the connection support between the lower rotary hinge and the lander (F204, F205), the locking mechanism and The lander connection (F203) and the midpoint of the swing arm (F202) are respectively used to obtain the rover's pitch attitude angle (A301), the lander's attitude angle (A302), and the transfer mechanism's flip angle (A303), and are respectively arranged on the side of the lander where the transfer mechanism is not installed, on the horizontal plane above the rover, and where the transfer mechanism is installed without interfering with the rover surface; the torque sensors obtain the torque at the key positions of the transfer mechanism structure, and are respectively arranged at the hinge axis (T402, T403) below the transfer mechanism and the swing axis (T401) of the flip mechanism above.

[0092] Wireless transmission module: The wireless transmission module is used to realize wireless transmission between the host PC system and the transfer mechanism sensor acquisition module, thereby realizing wireless communication of signals and data.

[0093] Using a wireless transmission module as the carrier and TCP communication as the foundation, a multi-channel synchronous acquisition and communication method for multiple groups of various types of tension sensors, strain gauges, and angle sensors is established. The wireless transmission module has multiple expansion interfaces for increasing the number of test channels, making it easy to add and change test plans at any time.

[0094] The wireless transmission module not only meets the functional performance requirements of the test system, but also can greatly avoid the additional load and sensor interference generated by the wired system, making the system implementation simpler and more convenient.

[0095] Host PC system: As the carrier of the software system, it realizes the control of sensors, transmission systems and transfer mechanisms, as well as data collection, processing and test result evaluation.

[0096] like Figure 4 As shown, the software system functions include: initialization and status monitoring, test process selection and parameter setting, data acquisition, data analysis and evaluation, experimental log and report.

[0097] Initialization and status monitoring: By establishing a database of wireless transmission module group IP address information and acquisition channel information, the corresponding relationship between the two is obtained and input into the software system to establish multi-channel synchronous acquisition communication with the wireless transmission module;

[0098] This part mainly realizes the joint communication of multiple sensors. The above-mentioned database establishment steps include first establishing a database file table. Enter the IP address of each current wireless transmission module and the corresponding number of acquisition channels to complete the data storage. Then complete the registration of all acquisition channels. The process is similar to the address registration (the database is different). Finally, complete the registration of the specific acquisition information of each channel. Read the address and channel name into the two enumerations, select the wireless transmission module and the channel corresponding to the address, and enter the specific channel information corresponding to the channel to complete the data storage. The same IP can correspond to multiple channels, but only one IP can be selected for one channel. Status monitoring also determines the status of the transfer mechanism through the system to prompt and alarm.

[0099] Test process selection and parameter setting: The test process selection completes different process stages such as unlocking, lifting, lowering, releasing, and retracting. Each process can also be tested separately or in combination; parameter setting realizes the test tasks of the transfer mechanism in four postures: nominal, backward, forward, and roll, including the setting of parameters such as release speed, pitch and roll angles of lander attitude, preload of linkage rope, and center of mass of rover.

[0100] Data acquisition: It mainly completes functions such as channel calibration, data adaptive sampling and processing, graphic and data display, and data parameter setting. ① Channel calibration: By comparing and calculating multiple sets of actual values ​​and test values, the calibration correction relationship of each channel sensor is obtained and recorded and stored; ② Based on the pre-imported simulation data, the data characteristics are analyzed and the sampling and storage frequency of the data are adaptively adjusted to increase the data density at the critical moment or stage of the test, while reducing the density of smoothly changing data, saving storage space, and realizing adaptive acquisition; ③ Complete the display of images and data; ④ In the process of saving the collected data, the set parameters are also saved in each channel to facilitate subsequent data processing.

[0101] Data analysis and evaluation: Based on theoretical analysis and with reference to simulation data, the analysis of relevant test data is completed and conclusions are given. On the one hand, the single-factor regularity results of the transfer mechanism experimental conditions and working conditions of a single variable on the key measurement parameters are obtained, such as the curve and explanation of the influence of different lander pitch angles on the release rope tension, etc.; on the other hand, a parameter coupling orthogonal test table is generated according to the key test parameters and working condition test parameters of the transfer mechanism, and a multi-factor orthogonal test scheme is provided. Through the multi-factor orthogonal test, a multi-factor horizontal trend diagram can be obtained, and the combined parameters of the maximum possible influence of the measured quantity (such as the maximum load) during the transfer mechanism test can be obtained. Finally, through comparative analysis with simulation data, combined with the analysis of single-factor and multi-factor test results, the rationality of the data of the transfer mechanism test, the influence of single factors on the measured quantity during the experimental process, and the evaluation of the maximum possible influence of multiple factors on the measured quantity can be given.

[0102] Experimental log and report: Generate an experimental log of the actions, time, and status of the entire experimental process; generate an experimental report based on the experimental requirements and relevant experimental data.

[0103] Embodiment 9: A wireless test collection and evaluation method for a patrol vehicle transfer mechanism based on the system described above, the method comprising:

[0104] S1. Run the host PC system; complete the initialization system hardware and communication test;

[0105] S2. Power on the transfer mechanism slow-release drive device, complete lander preparation, power off and lock the slow-release drive and rover electromagnetic locking device, and prepare the rover prototype for quality.

[0106] S3. Setting parameters according to test requirements, including operating condition control parameters, input ranges, and key test parameters, to adjust the transfer mechanism operating conditions and monitor;

[0107] S4, real-time testing, data recording, angle status monitoring and real-time data display;

[0108] S5, data table, curve display data storage and experimental log record;

[0109] S6. Data analysis, experimental evaluation and experimental report.

[0110] This embodiment, through a combination of hardware and software, allows for simple and convenient testing of the transfer mechanism's transfer characteristics, based on the characteristics of the patrol vehicle's transfer mechanism. This includes testing the transfer mechanism's deployment and transfer functions in four postures: nominal, reclined, forward, and sideways. Based on the static and dynamic simulation results of the transfer mechanism, key parameters such as drive component parameters, rope tension curves, angles, and strain at different positions within the mechanism are collected. A single-factor test plan is automatically generated based on these key parameters. This single-factor analysis is then performed to verify the correctness of the transfer mechanism's functional design principles and the compatibility and correctness of its components. A multi-factor orthogonal test plan is automatically generated based on these key parameters to determine the maximum impact load during the transfer mechanism's motion, further identifying design deficiencies and providing a basis for product design refinement and improvement.

[0111] Implementation method nine: This implementation method further defines the wireless test collection and evaluation method for the patrol transfer mechanism described in implementation method nine. In this implementation method, S1 is further defined, and S1 includes:

[0112] S1.1. Create a new TDMMS database file table IPAddress and input the IP address of each group of wireless transmission modules and the corresponding number of sensor acquisition channels;

[0113] S1.2. Complete the registration of all channels;

[0114] S1.3. Complete the registration of the specific information of each channel, read the IP address and channel name into the two enumerations, select the channel corresponding to the IP address, and enter the specific channel information corresponding to the channel; the same IP can correspond to multiple channels, but only one IP can be selected for a channel;

[0115] S1.4. Establish TCP listening between the upper software system and the wireless transmission module, establish a multi-address TCP synchronous connection through the wireless transmission module IP registered in S1.1, S1.2 and S1.3, and collect channel information.

[0116] In this embodiment, on the one hand, the channel data transmission can be guaranteed to be stable and reliable, and on the other hand, the multi-address TCP synchronous connection realizes synchronous data collection that matches the test process with high precision.

[0117] Embodiment 10: This embodiment further defines the wireless test collection and evaluation method for the patrol transfer mechanism described in Embodiment 9. In this embodiment, S4 is further defined, and S4 specifically includes:

[0118] S4.1. Complete simulation calculation of key parameters based on sensor layout;

[0119] S4.2. Extract simulation data features through simulation data and establish regular acquisition frequency;

[0120] Determine the key steps in the acquisition process, specifically including: the acquisition density in the left and right neighborhoods of the extreme point position is much greater than that of other positions, and the acquisition density in the left and right neighborhoods of the slope mutation position is much greater than that of other positions, and control the multi-channel synchronous communication established by S1 to adjust the acquisition frequency at the same time;

[0121] S4.3. Set the operating parameters, key test parameters, and their input ranges according to S3. Divide the operating conditions into one of the following: equal interval, bisection interval, golden section interval, and Fibonacci interval within the operating parameter input range. Automatically generate a single-factor test plan and table for each operating parameter. Use bisection interval when the operating parameter range is large and the standard operating condition is unknown. Use golden section interval when the measurement system requires high accuracy and the key parameter curve has a single peak. Use Fibonacci interval when the operating parameter value is an integer or a finite number. Use equal interval under normal conditions.

[0122] S4.4. According to the single factor test plan generated in S4.3, determine the number of factors and levels of operating parameters and key parameters, establish orthogonal relationships, and generate relevant orthogonal tables L based on orthogonality calculations. n (a p), where P is the number of columns in the orthogonal table, n is the number of rows in the orthogonal table, and a is the number of levels; a multi-factor test plan and a multi-factor orthogonal test table are generated through the orthogonal table and the operating parameters and key parameters; the data after the test is completed can scientifically reflect the influence of multiple factors on its key parameters during the test of the transfer mechanism.

[0123] S4.5. Read all sensor acquisition channels in S1 and extract channel-specific information; complete channel calibration testing, input the actual values ​​and test values ​​of multiple sensor groups into the software system data acquisition module, calculate the actual value and test value curve coefficients K and B, and input the results into the database; automatically calibrate the multi-channel sensor data based on the data curve coefficients K and B in the database;

[0124] S4.6 completes the input of simulation data according to the registered channel name, and adaptively adjusts the sensor acquisition frequency according to the characteristics of the simulation data curve.

[0125] In this embodiment, the data acquisition density is determined by analyzing the simulation data, which can efficiently utilize the storage space, reduce the amount of data, and greatly improve the efficiency of data processing; through single-factor and multi-factor analysis, a scientific and reasonable test plan is given, which facilitates the scientific and effective evaluation of the test data of the transfer mechanism after the test.

[0126] Implementation eleven, this implementation is a specific example of the wireless test collection and evaluation method for the patrol transfer mechanism as described above, including:

[0127] like Figure 1 As shown, a wireless test, acquisition, and evaluation system for a rover transfer mechanism includes measurement sensors, a wireless transmission module, a host computer, and a data acquisition, analysis, and evaluation system. The wireless transmission module consists of a wireless receiving module and a wireless acquisition module. The host computer is connected to the lander controller and the wireless transmission module, respectively. The data acquisition, analysis, and evaluation system is deployed in the host computer, controlling the lander's movements and interacting with the sensors via the wireless transmission module.

[0128] The measuring sensors are mainly divided into S101~S103 tension sensors, F201~F205 strain gauges, A301~A303 angle sensors, T401~T403 torque sensors, which are used as measuring equipment to measure relevant test data, such as Figure 2As shown, sensors are placed at key locations within the transfer mechanism: S101 measures the tension of the release rope; S102 and S103 measure the tension of linkage ropes A and B; F201-F205 measure the stresses in the flip arm, adapter bracket, locking mechanism, support A, and support B, respectively; A301-A303 measure the pitch and roll angles of the rover, lander, and frame during transfer; T401 measures the torque of the flip arm; and T402 and T403 measure the bending moment of support A and support B of the transfer frame. Each test sensor is connected to a wireless acquisition module, which interacts with the host computer via a wireless transmission module.

[0129] like Figure 3 As shown, the wireless test collection and evaluation system for the patrol transfer mechanism includes the following steps:

[0130] S1. Test bench is ready; run the host PC system; complete the initialization of system hardware and communication test

[0131] S1.1. Create a new TDMMS database file table called IPAddress. Enter the IP address of each wireless transmission module and the corresponding number of sensor acquisition channels, such as a 3-channel tension wireless transmission module and a 3-channel angle wireless transmission module, to complete data storage.

[0132] S1.2. Complete the registration of all channels. The processes for S101, S102, and S103 are similar to the registration in S1.1 (the database is different).

[0133] S1.3. Complete the registration of each channel's specific information. Read the IP address and channel name into two enumerations. Select the channel corresponding to the IP address and enter the channel's specific information. The same IP address can correspond to multiple channels, but only one IP address can be selected for each channel. For example, rope tension channels S101, S102, and S103 correspond to the IP address of a three-channel tension wireless transmission module. Finally, store the data in the database.

[0134] S1.4. Establish TCP listening between the upper software system and the wireless transmission module, and establish a multi-address TCP synchronous connection through the wireless transmission module IP and collection channel information registered in S1.1, S1.2, and S1.3.

[0135] S2. Power on the transfer mechanism slow-release drive device, complete lander preparation, slow-release drive, rover electromagnetic locking device power off and lock, rover prototype quality preparation

[0136] S3. According to the test requirements, set the parameters, including tension preload, lander pitch angle, tilt angle, test process speed parameters, sample mass center position and other working condition control parameters and input range, and adjust the transfer mechanism working condition. For example, the test standard working condition is that the release motor drive frequency is 350Hz, the preload force of the linkage rope on both sides is 400N, and the pitch and tilt angles of the lander are both 0°. The key test parameters include the release rope tension, linkage rope tension, and rover pitch angle. All working conditions are based on Figure 2 Sensors adjust and monitor the working conditions of various parts of the test bench.

[0137] S4. Start the test (test process control) with real-time testing, data recording, angle status monitoring, and real-time data display. The test process is mainly divided into the rover unlocking process (unlocking), deployment process (lifting and leveling), transfer process (lowering), rover detachment process (release), and transfer mechanism reset (recovery). Each individual process and the overall process are used to obtain key parameters such as the rope tension curve under various working conditions, the angle of the rover mechanism frame and the position strain of the main load-bearing components of the mechanism.

[0138] S4.1. Complete simulation calculations of key parameters based on sensor layout, such as rope tension curve, angle change, strain curves at different positions of the mechanism, etc.

[0139] S4.2. Extract simulation data features, such as extreme values, slopes, quantities, etc. Based on the quantities, establish a regular acquisition frequency;

[0140] Determine the key steps in the acquisition process, such as the acquisition density in the left and right neighborhoods of the extreme point position is much greater than that of other positions, the acquisition density in the left and right neighborhoods of the slope mutation position is much greater than that of other positions, etc., and control the acquisition frequency while adjusting the multi-channel synchronous communication established by the host computer through S1.

[0141] S4.3. Set the working condition parameters, key test parameters and their input range according to S3. Divide the working condition into equal intervals, bisection intervals, golden section intervals and Fibonacci intervals within the working condition parameter input range. Automatically generate a single factor test plan and table for each working condition parameter. When the working condition parameter range is large and the standard working condition is unknown, the bisection interval should be used. When the measurement system has high accuracy requirements and the key parameter curve is a single peak, the golden section interval should be used. When the working condition parameter value is an integer or a finite number, the Fibonacci interval should be used. Under normal conditions, the equal interval should be used.

[0142] S4.4. According to the single-factor test plan generated by S4.3, determine the number of factors and levels of the operating parameters and key parameters, establish an orthogonal relationship, and generate the relevant orthogonal table Ln(ap) based on the orthogonality calculation, where P is the number of columns in the orthogonal table, n is the number of rows in the orthogonal table, and a is the number of levels; generate a multi-factor test plan and a multi-factor orthogonal test table through the orthogonal table and the operating parameters and key parameters. This plan can generate a factor level trend chart, and use the factor generation trend chart to obtain the maximum key parameter and its acquisition conditions. The orthogonal relationship is reflected in the fact that the number of levels in each column of the orthogonal table is evenly dispersed and the number of occurrences is equal; any two columns in the orthogonal table are neatly comparable, and the number of occurrences of each level number pair is equal. This is to reduce the number of experiments while ensuring the accuracy of the test verification.

[0143] S4.5. Read all sensor acquisition channels in S1 and write them into the system, extracting specific channel information. After completing the channel calibration test, enter the actual and test values ​​of multiple sensor groups into the software system's data acquisition module. Calculate the actual-value-to-test-value curve coefficients, K and B, and enter the results into the database. Automatically calibrate the multi-channel sensor data based on the K and B curve coefficients in the database. The test values ​​are derived from the standard analog signal values ​​output by the sensors in their natural state before installation. The actual values ​​refer to the analog signal values ​​actually output by the sensors in the test system.

[0144] S4.6 completes the input of simulation data according to the registered channel name, and adaptively adjusts the sensor acquisition frequency according to the characteristics of the simulation data curve, improves the acquisition density of key positions, and completes the data acquisition and display with improved accuracy. In the process of saving the collected data, the set parameters are also saved in each channel to facilitate subsequent data processing.

[0145] S5. Complete the test (human-computer interaction), store data in data tables and curves, and record the experimental log. Human-computer interaction includes the experimenter adjusting the test conditions by setting test parameters, generating the test plan by parameter input, and controlling the experimental process through the software interface.

[0146] S6. Data analysis, test evaluation, and experimental report

[0147] S6.1. Perform single factor analysis of key parameters based on the single factor test plan generated in S4.3. 1. Display the corresponding relationship between key parameters and transfer mechanism test actions under different working conditions, such as the corresponding relationship between the Ft curves of the release rope tension S101, the linkage rope tension S102, and S103 and the transfer mechanism test process in S4 under different mass conditions. 2. Display the change curves and corresponding relationships of key parameters under single variable working conditions, such as the comparison and corresponding relationship of the curves of the influence of the pitch attitude of the lander on S101, S102, and S103, and the comparison and corresponding relationship of the curves of the influence of the preload force of the linkage rope on S101, S102, and S103.

[0148] S6.2. Perform a multi-factor analysis of key parameters based on the multi-factor test plan generated in S4.4. 1. Display multi-factor horizontal trend charts for key parameters of the transfer mechanism, such as a four-factor, five-level trend chart for release speed, linkage rope preload, roll angle, and pitch angle for key parameters S101, S102, and S103. 2. Calculate the maximum impact load of the transfer mechanism based on the horizontal trend charts obtained from the multi-factor test.

[0149] The system and method of the present invention, through a combination of software and hardware, can easily and conveniently complete the transfer characteristic test of the transfer mechanism based on the characteristics of the patrol vehicle transfer mechanism, including testing the deployment and transfer function of the transfer mechanism in four postures: nominal, rearward, forward, and sideways. Based on the static and dynamic simulation results of the transfer mechanism, key parameters such as drive component parameters, rope tension curves, angles, and strains at different positions of the mechanism are collected during the acquisition process. A single-factor test plan is automatically generated based on the key parameters, and a single-factor analysis is performed after the test is completed to verify the correctness of the transfer mechanism functional design principle, component matching, and correctness. A multi-factor orthogonal test plan is automatically generated based on the key parameters to obtain the maximum impact load during the movement of the transfer mechanism, further identify design deficiencies, and provide a basis for product design improvement.

Claims

1. A wireless test acquisition and evaluation system for patrol vehicle transfer mechanism, characterized in that: The system includes: a sensor acquisition module, a wireless transmission module and a host computer system; The sensor acquisition module is used to collect test data of the transfer mechanism, and includes a plurality of sensors, which are respectively arranged at corresponding parts of the transfer mechanism; The wireless transmission module is used to realize wireless transmission of signals and data between the host PC system and the sensor acquisition module; The host PC system is used to control the sensors, transmission system and transfer mechanism, as well as data acquisition, processing and test result evaluation, specifically including: initialization and status monitoring, test process selection and parameter setting, data acquisition, data analysis and evaluation, and experimental log and report; The initialization and status monitoring is used to realize the joint communication of the plurality of sensors, and is also used to determine the status of the transfer mechanism to provide prompts and alarms; The test process selection and parameter setting are used to select and complete different process stages of unlocking, lifting, lowering, releasing or retracting, and to test each process separately or in combination; the parameter setting realizes the test task of the transfer mechanism in different postures, and the parameters include release speed, pitch and roll angles of the lander attitude, linkage rope preload and the center of mass of the viewer; The data acquisition is used to complete channel calibration, data adaptive sampling processing, graphic and data display and data parameter setting; The data analysis and evaluation is used to complete the analysis of relevant test data and draw conclusions based on theoretical analysis and reference to simulation data, specifically including: obtaining the single-factor law results of the single variable of the transfer mechanism experimental conditions and working conditions on the key measurement parameters; generating a parameter coupling orthogonal test table based on the key test parameters and working condition test parameters of the transfer mechanism, and providing a multi-factor orthogonal test plan, and obtaining a multi-factor level trend chart through multi-factor orthogonal test testing, and obtaining the combined parameters of the maximum possible influence of the measured quantity in the transfer mechanism test process; through comparative analysis with simulation data, combined with analysis of single-factor and multi-factor test results, obtaining the data rationality of the transfer mechanism test, the influence of single factors on the measured quantity in the experimental process, and the evaluation of the maximum possible influence of multiple factors on the measured quantity.

2. A wireless test, acquisition and evaluation system for a patrol vehicle transfer mechanism according to claim 1, characterized in that: The sensor acquisition module includes a patch-type strain sensor, a tension sensor, an angle sensor and a torque sensor.

3. A wireless test, acquisition and evaluation system for a patrol vehicle transfer mechanism according to claim 2, characterized in that: The test data include stress, strain, tension, pressure and angle.

4. A wireless test, acquisition and evaluation system for a patrol vehicle transfer mechanism according to claim 3, characterized in that: The plurality of sensors are respectively arranged at corresponding positions of the transfer mechanism, specifically including: The tension sensors are used to obtain the tension of the release rope that suspends the transfer mechanism in the transfer mechanism and the tension of the attitude adjustment rope that adjusts the attitude of the rover, and are respectively arranged at the connection between the release rope and the swing arm of the flip mechanism and at the midpoint of the attitude adjustment rope between the rotating hinge of the transfer mechanism and the linkage mechanism; the patch strain sensors are used to obtain the strains at the key positions of the transfer mechanism structure, and are respectively arranged at the midpoint between the rotating hinge and the linkage mechanism on the main swing frame, the connection support between the lower rotating hinge and the lander, the connection between the locking mechanism and the lander, and the midpoint of the swing arm; the angle sensors are used to obtain the pitch attitude angle of the rover, the attitude angle of the lander and the flip angle of the transfer mechanism, and are respectively arranged at the side of the lander where the transfer mechanism is not installed, the horizontal plane above the rover, and the position where the transfer mechanism is installed without interference with the rover surface; the torque sensors obtain the torque at the key positions of the transfer mechanism structure, and are respectively arranged at the hinge axis below the transfer mechanism and the swing axis of the flip mechanism above.

5. A wireless test, acquisition and evaluation system for a patrol vehicle transfer mechanism according to claim 1, characterized in that: The wireless transmission of signals and data between the host PC system and the sensor acquisition module specifically includes: establishing a multi-channel synchronous acquisition communication method according to the number and type of sensors in the sensor acquisition module.

6. A wireless test, acquisition and evaluation system for a patrol vehicle transfer mechanism according to claim 1, characterized in that: The realizing of the joint communication of the plurality of sensors specifically includes: By establishing a database of wireless transmission module group IP address information and acquisition channel information, the corresponding relationship between the two is obtained, and multi-channel synchronous acquisition communication is established with the wireless transmission module; The database establishment step includes: establishing a database file table, inputting the current IP addresses of each wireless transmission module and the corresponding number of acquisition channels to complete data storage; completing the registration of all acquisition channels; completing the registration of specific acquisition information of each channel; reading the address and channel name into two enumerations, selecting the wireless transmission module and the channel corresponding to the address, and inputting the channel-specific information corresponding to the channel to complete data storage; wherein the same IP can correspond to multiple channels, but only one IP can be selected for one channel.

7. A wireless test, acquisition and evaluation system for a patrol vehicle transfer mechanism according to claim 1, characterized in that: The completion of channel calibration, data adaptive sampling processing, graphic and data display, and data parameter setting specifically includes: the channel calibration obtains the calibration correction relationship of each channel sensor by comparing and calculating multiple groups of actual values ​​and test values, and records and stores it; the data adaptive sampling processing analyzes data characteristics based on pre-imported simulation data and adaptively adjusts the sampling and storage frequency of the data; the data parameter setting saves the set parameters in each channel at the same time during the process of saving the collected data.

8. A wireless test collection and evaluation method for a patrol vehicle transfer mechanism based on the system according to any one of claims 1 to 7, characterized in that: The method comprises: S1. Run the host PC system; complete the initialization system hardware and communication test; S2. Power on the transfer mechanism slow-release drive device, complete lander preparation, power off and lock the slow-release drive and rover electromagnetic locking device, and prepare the rover prototype for quality. S3. Setting parameters according to test requirements, including operating condition control parameters, input ranges, and key test parameters, to adjust the transfer mechanism operating conditions and monitor; S4, real-time testing, data recording, angle status monitoring and real-time data display; S5, data table, curve display data storage and experimental log record; S6. Data analysis, experimental evaluation and experimental report.

9. A wireless test collection and evaluation method for a patrol vehicle transfer mechanism according to claim 8, characterized in that: S1 specifically includes: S1.

1. Create a new TDMMS database file table IPAddress and input the IP address of each group of wireless transmission modules and the corresponding number of sensor acquisition channels; S1.

2. Complete the registration of all channels; S1.

3. Complete the registration of the specific information of each channel, read the IP address and channel name into the two enumerations, select the channel corresponding to the IP address, and enter the specific channel information corresponding to the channel; the same IP can correspond to multiple channels, but only one IP can be selected for a channel; S1.

4. Establish TCP listening between the upper software system and the wireless transmission module, establish a multi-address TCP synchronous connection through the wireless transmission module IP registered in S1.1, S1.2 and S1.3, and collect channel information.

10. A wireless test collection and evaluation method for a patrol vehicle transfer mechanism according to claim 9, characterized in that: S4 specifically includes: S4.

1. Complete simulation calculation of key parameters based on sensor layout; S4.

2. Extract simulation data features through simulation data and establish regular acquisition frequency; Determine the key steps in the acquisition process, specifically including: the acquisition density in the left and right neighborhoods of the extreme point position is much greater than that of other positions, and the acquisition density in the left and right neighborhoods of the slope mutation position is much greater than that of other positions, and control the multi-channel synchronous communication established by S1 to adjust the acquisition frequency at the same time; S4.

3. Set the operating parameters, key test parameters, and their input ranges according to S3. Divide the operating conditions into one of the following: equal interval, bisection interval, golden section interval, and Fibonacci interval within the operating parameter input range. Automatically generate a single-factor test plan and table for each operating parameter. Bisection interval should be used when the operating parameter range is large and the standard operating condition is unknown. Golden section interval should be used when the measurement system requires high accuracy and the key parameter curve has a single peak. Fibonacci interval should be used when the operating parameter has a limited number of values. Equal interval should be used under normal conditions. S4.

4. According to the single factor test plan generated in S4.3, determine the number of factors and levels of operating parameters and key parameters, establish orthogonal relationships, and generate relevant orthogonal tables L based on orthogonality calculations. n (a p ), where P is the number of columns in the orthogonal table, n is the number of rows in the orthogonal table, and a is the number of levels; a multi-factor test plan and a multi-factor orthogonal test table are generated through the orthogonal table, operating parameters, and key parameters; S4.

5. Read all sensor acquisition channels in S1 and extract channel-specific information; complete channel calibration testing, input the actual values ​​and test values ​​of multiple sensor groups into the software system data acquisition module, calculate the actual value and test value curve coefficients K and B, and input the results into the database; automatically calibrate the multi-channel sensor data based on the data curve coefficients K and B in the database; S4.6 completes the input of simulation data according to the registered channel name, and adaptively adjusts the sensor acquisition frequency according to the characteristics of the simulation data curve.

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