Automatic test system for seeker vibration impact environment experiment

Abstract

The invention discloses an automatic test system for a seeker vibration impact environment experiment. The automatic test system comprises a data acquisition part, a data processing part, a data storage part, a data transmission part and a data display part, wherein the data acquisition part is used for acquiring a dynamic response signal of the seeker in a vibration impact environment in real time and transmitting the signal to the signal processing part; the data processing part performs filtering, analysis and feature extraction on the acquired signals, stores a processing result in the data storage part, and sends data to the data display part through the data transmission part; the data display part is used for presenting test data in real time and providing an interactive interface for a user; according to the method, manual intervention is reduced through an automatic process, the experiment efficiency and the data consistency are improved, and the method is an effective solution for solving the problems in the prior art.

Description

(1) Technical Field

[0001] The present invention belongs to the technical field of missile testing, and particularly relates to an automated test system for the vibration and shock environment experiment of a seeker. (2) Background Art

[0002] The seeker is the core component of a missile guidance system and needs to withstand complex vibration and shock environments during flight. For example, during launch, maneuvering flight, target acquisition, and terminal guidance phases, the seeker may experience high-frequency vibration, transient shock, and broadband random vibration. These environmental factors may cause sensitive component failure, signal distortion, or increased target tracking error, affecting the guidance accuracy and even leading to mission failure.

[0003] Traditional vibration and shock test methods usually adopt a step-by-step test method, which is difficult to truly simulate the full-condition vibration and shock environment of the seeker during actual flight. In addition, existing test systems have deficiencies in data acquisition accuracy, real-time processing capabilities, and intelligent levels, resulting in test data being difficult to comprehensively reflect the dynamic response characteristics of the seeker. At the same time, the test software has poor interface interactivity and limited data analysis capabilities, making it difficult to meet the requirements of modern high-precision guidance systems. Therefore, it is of great engineering application value to develop an efficient and automated test system for the vibration and shock environment experiment of a seeker to improve test efficiency, optimize data analysis capabilities, and enhance the repeatability of experiments. (3) Summary of the Invention

[0004] To solve the deficiencies of the existing technology, the present invention provides an automated test system for the vibration and shock environment experiment of a seeker. The system integrates high-precision data acquisition, intelligent signal processing, and visual data analysis functions, and can realize the automated experiment of the seeker's vibration and shock environment, improving test efficiency and data reliability.

[0005] The automated test system for the vibration and shock environment experiment of the seeker of the present invention includes: a data acquisition component, a data processing component, a data storage component, a data transmission component, and a data display component; wherein, the data acquisition component is used to obtain the dynamic response signal of the seeker in the vibration and shock environment in real time and transmit the signal to the data processing component; the data processing component filters, analyzes, and extracts features from the acquired signal, stores the processing result in the data storage component, and at the same time sends the data to the data display component through the data transmission component; the data display component is used to present the test data in real time and provide an interactive interface for users.

[0006] The data acquisition component includes an acceleration sensor, a shock sensor, and a pressure sensor; wherein, the acceleration sensor is used to detect the acceleration change of the seeker structure in the vibration and shock environment; the shock sensor is used to capture the transient shock response signal; the pressure sensor is used to measure the action of the shock load on the seeker structure.

[0007] The data processing component includes an A / D sampling board, a moving average filtering module, an FPGA processing unit, and a data analysis unit. Among them, the A / D sampling board is used to convert the collected analog signal into a digital signal and transmit the digital signal to the FPGA processing unit; the moving average filtering module is used to reduce high-frequency noise and improve signal stability; the FPGA processing unit performs feature extraction and spectrum analysis on the signal and compares it with a reference signal; the data analysis unit is used to evaluate the vibration characteristics of the seeker structure and generate a test report.

[0008] The data storage component includes a cache and a non-volatile memory. Among them, the cache is used to temporarily store real-time data to improve data processing efficiency; the non-volatile memory is used to store test data for a long time for subsequent analysis and backtracking.

[0009] The data transmission component includes a high-speed data bus. Among them, the high-speed data bus is used to transmit data between components within the system to ensure low latency and high throughput.

[0010] The data display component includes a host computer software and a liquid crystal display. The host computer software is used to receive and visualize experimental data, and at the same time provides functions for adjusting experimental parameters, data analysis, and anomaly detection; the liquid crystal display is used to display test results in real time and support user operation interaction.

[0011] The present invention also provides an automated test method for the vibration and shock environment experiment of a seeker, including the following steps:

[0012] 1) Start the A / D sampling board, perform analog-to-digital conversion on the vibration and shock signals obtained by the data acquisition component, and transmit the digital signals to the FPGA processing unit;

[0013] 2) The FPGA processing unit uses the moving average filtering algorithm to smooth the data, suppress high-frequency noise, and improve the stability and reliability of the signal;

[0014] 3) The data analysis unit performs feature extraction on the filtered signal, including time-domain analysis, spectrum analysis, and shock response analysis, and extracts key vibration and shock characteristic parameters;

[0015] 4) If an abnormal vibration and shock signal is detected, the system automatically marks and stores the abnormal data;

[0016] 5) The processed data is stored in the cache and synchronized to the non-volatile memory to ensure the integrity of the test data;

[0017] 6) The host computer software parses the test data in real time and displays the waveform, amplitude, frequency, and other analysis results of the vibration and shock signal on the liquid crystal display.

[0018] Preferably, the system uses an external clock synchronization signal to precisely synchronize the data acquisition and processing processes to ensure the timing consistency of vibration and shock tests.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] (1) The present invention uses high-precision acceleration and shock sensors and combines synchronous sampling technology to improve the accuracy of vibration and shock data and ensure the reliability of experimental data.

[0021] (2) The host computer software of the present invention supports experimental parameter configuration, real-time data monitoring, historical data backtracking, spectrum analysis, and intelligent alarm, enhancing user interactivity and the visualization analysis ability of experimental results.

[0022] (3) The present invention can automatically complete data acquisition, signal processing, feature analysis, and result evaluation, reducing manual intervention and improving experimental efficiency and data consistency.

[0023] (4) The present invention supports multiple experimental modes, including sine sweep, random vibration, transient shock, etc., and can simulate the vibration and shock responses of a seeker in different flight environments, providing strong support for the reliability assessment of the guidance system. (IV) Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of an automated test system for a seeker vibration and shock environment experiment of the present invention;

[0025] Figure 2 is a flowchart of the operation of an automated test system for a seeker vibration and shock environment experiment of the present invention. (V) Specific Embodiments

[0026] To make the objectives, contents, and advantages of the present invention clearer, the following further describes in detail the specific embodiments of the present invention with reference to the drawings and embodiments.

[0027] First, as Figure 1 shown, Figure 1It is a schematic structural diagram of an automated test system for the vibration and shock environment experiment of a seeker; the automated test system for the vibration and shock environment experiment of the seeker includes a data acquisition component, a data processing component, a data storage component, a data transmission component, and a data display component; among them, the data acquisition component is used to obtain the dynamic response signal of the seeker in the vibration and shock environment in real time and transmit the signal to the data processing component; the data processing component filters, analyzes, and extracts features from the acquired signal, stores the processing result in the data storage component, and at the same time sends the data to the data display component through the data transmission component; the data display component is used to present the test data in real time and provide an interactive interface for users.

[0028] The data acquisition component includes an acceleration sensor, a shock sensor, and a pressure sensor; among them, the acceleration sensor is used to detect the acceleration change of the seeker structure in the vibration and shock environment; the shock sensor is used to capture the transient shock response signal; the pressure sensor is used to measure the action of the shock load on the seeker structure.

[0029] The data processing component includes an A / D sampling board, a moving average filtering module, an FPGA processing unit, and a data analysis unit; among them, the A / D sampling board is used to convert the acquired analog signal into a digital signal and transmit the digital signal to the FPGA processing unit; the moving average filtering module is used to reduce high-frequency noise and improve signal stability; the FPGA processing unit extracts features and performs spectrum analysis on the signal and compares it with the reference signal; the data analysis unit is used to evaluate the vibration characteristics of the seeker structure and generate a test report.

[0030] The data storage component includes a cache and a non-volatile memory; among them, the cache is used to temporarily store real-time data to improve data processing efficiency; the non-volatile memory is used to store test data for a long time for subsequent analysis and backtracking.

[0031] The data transmission component includes a high-speed data bus; among them, the high-speed data bus is used to transmit data between components within the system to ensure low latency and high throughput.

[0032] The data display component includes a host computer software and a liquid crystal display screen; among them, the host computer software is used to receive and analyze test data and provide a visualization interface; the liquid crystal display screen is used to display key test parameters in real time for testers to monitor and adjust.

[0033] Further, please view Figure 2 , Figure 2 is a flowchart of the operation of an automated test system for the vibration and shock environment experiment of a seeker according to the present invention; the method mainly includes the following steps:

[0034] 1) Start the A / D sampling board, perform analog-to-digital conversion on the vibration and shock signals obtained by the data acquisition component, and transmit the digital signals to the FPGA processing unit;

[0035] 2) The FPGA processing unit uses the moving average filtering algorithm to smooth the data, suppress high-frequency noise, and improve the stability and reliability of the signals;

[0036] 3) The data analysis unit extracts features from the filtered signals, including time-domain analysis, frequency-spectrum analysis, and shock response analysis, and extracts key vibration and shock characteristic parameters;

[0037] 4) If abnormal vibration and shock signals are detected, the system automatically marks and stores the abnormal data;

[0038] 5) The processed data is stored in the cache and synchronized to the non-volatile memory to ensure the integrity of the test data;

[0039] 6) The host computer software parses the test data in real time and displays the waveforms, amplitudes, frequencies, and other analysis results of the vibration and shock signals on the liquid crystal display screen.

[0040] Finally, the specific technical features of an automated test system for the vibration and shock environment experiment of a seeker according to the present invention are as follows:

[0041] (1) The present invention adopts high-precision acceleration sensors and shock sensors, and combines synchronous multi-channel sampling technology to ensure the high fidelity and accuracy of vibration and shock signals, effectively improving the reliability and repeatability of experimental data.

[0042] (2) The FPGA processing unit of the present invention uses the moving average filtering algorithm to perform real-time denoising on the data, and combines adaptive threshold analysis for signal feature extraction and anomaly detection, ensuring the stability and intelligence of data processing and improving the real-time response ability of the test system.

[0043] (3) The present invention provides multifunctional host computer software, which supports experimental parameter configuration, real-time data monitoring, historical data storage and retrieval, and time-frequency analysis and warning. Users can achieve visual analysis of experimental data through an intuitive interaction interface, enhancing the operability of the system and the efficiency of experimental management.

[0044] (4) The test system of the present invention can automatically perform data acquisition, signal processing, feature analysis, and result evaluation, reducing the need for manual intervention, improving the test efficiency and data consistency, while reducing human errors and improving the repeatability of the experiment.

[0045] (5) The present invention supports a variety of experimental modes, including sine sweep, random vibration, transient shock, etc., and can simulate the vibration and shock responses of the seeker in different flight environments, meeting the test requirements of various guidance systems and providing strong data support for the reliability verification and optimization of the seeker.

[0046] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An automated test system for a seeker vibration shock environment experiment, characterized in that: The automated test system for the vibration and shock environment experiment of the seeker comprises a data acquisition component, a data processing component, a data storage component, a data transmission component and a data display component; wherein the data acquisition component is used to obtain the dynamic response signal of the seeker in the vibration and shock environment in real time, and transmit the signal to the data processing component; the data processing component filters, analyzes and extracts features of the collected signal, and stores the processing result in the data storage component, and sends the data to the data display component through the signal transmission component; the data display component is used to present the test data in real time and provide an interactive interface for the user; The data acquisition component includes an acceleration sensor, an impact sensor and a pressure sensor; wherein the acceleration sensor is used to detect the acceleration change of the seeker structure under a vibration and impact environment; the impact sensor is used to capture the transient impact response signal; and the pressure sensor is used to measure the effect of the impact load on the seeker structure; The data processing component includes an A / D sampling board, a sliding average filter module, an FPGA processing unit and a data analysis unit; wherein the A / D sampling board is used to convert the collected analog signal into a digital signal and transmit the digital signal to the FPGA processing unit; the sliding average filter module is used to reduce high-frequency noise and improve signal stability; the FPGA processing unit performs feature extraction and spectrum analysis on the signal and compares it with the reference signal; the data analysis unit is used to evaluate the vibration characteristics of the seeker structure and generate a test report; The data storage component includes a cache and a non-volatile memory; wherein the cache is used to temporarily store real-time data to improve data processing efficiency; the non-volatile memory is used to store test data for a long time for subsequent analysis and backtracking; The data transmission component includes a high-speed data bus; wherein the high-speed data bus is used to transmit data between various components within the system to ensure low latency and high throughput; The data display component includes a host computer software and a liquid crystal display screen; wherein the host computer software is used to receive and analyze test data and provide a visual interface; the liquid crystal display screen is used to display key test parameters in real time so that testers can monitor and adjust them.

2. A working method of an automated test system for a seeker vibration shock environment test using the method of claim 1, characterized in that: The method comprises the following steps: 1) Start the A / D sampling board, perform analog-to-digital conversion on the vibration impact signal obtained by the data acquisition component, and transmit the digital signal to the FPGA processing unit; 2) The FPGA processing unit uses a sliding average filtering algorithm to smooth the data, suppress high-frequency noise, and improve signal stability and reliability; 3) The data analysis unit performs feature extraction on the filtered signal, including time domain analysis, spectrum analysis and impact response analysis, and extracts key vibration impact characteristic parameters; 4) If an abnormal vibration impact signal is detected, the system automatically marks the abnormal data and stores it; 5) The processed data is stored in the cache and synchronized to the non-volatile memory to ensure the integrity of the test data; 6) The host computer software analyzes the test data in real time and displays the waveform, amplitude, frequency and other analysis results of the vibration impact signal on the LCD screen.

3. The working method according to claim 2, characterized in that: The system uses an external clock synchronization signal to accurately synchronize the data acquisition and processing process to ensure the timing consistency of the vibration shock test.

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