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航天器展開(kāi)機構壓力傳感器無(wú)線(xiàn)測控系統設計
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上海衛星裝備研究所

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基于數字孿生的大型復雜高精度空間可展機構精密測量調控技術(shù) (基金號:JCKY2020203B039);專(zhuān)題:軍工智能制造;項目類(lèi)型:重點(diǎn)項目


Design of Wireless measurement and control system for spacecraft deployment pressure sensor
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    摘要:

    傳統的航天器展開(kāi)機構任務(wù)壓力傳感器參數測控系統使用有線(xiàn)的方式,展開(kāi)過(guò)程中存在力軸轉動(dòng)網(wǎng)線(xiàn)跟隨纏繞的現象,以往需根據位置調整采集終端,避免網(wǎng)線(xiàn)斷裂,使用極不方便,且單點(diǎn)采集,不利于多通道部署和數據集成處理。為了解決上述問(wèn)題,開(kāi)發(fā)了一種基于ESP8266和LabVIEW的嵌入式分布式無(wú)線(xiàn)壓力傳感器參數測控系統,設計信號調理電路,ADC采集模塊,使用ESP8266無(wú)線(xiàn)模塊多點(diǎn)分布式組網(wǎng);終端采集軟件使用LabVIEW虛擬儀器平臺,采用多線(xiàn)程低耦合的QMH隊列框架,功能模塊化編寫(xiě),便于開(kāi)發(fā)人員維護,實(shí)現設備通訊,傳感器校準及數據采集處理等功能;使用PSP服務(wù)器動(dòng)態(tài)實(shí)時(shí)共享試驗數據,實(shí)現數據的網(wǎng)絡(luò )快速傳遞,提高系統的數據處理速度;添加了增量式積分分離PID算法,實(shí)現了傳動(dòng)機構與傳感器的聯(lián)動(dòng),精確控制壓力參數,同時(shí)具備數據動(dòng)態(tài)擬合及超限報警等功能。系統運行穩定,數據采集頻率和壓力控制精度高,具有工程應用價(jià)值。

    Abstract:

    The traditional pressure sensor parament acquisition of spacecraft deployment task uses the wired connection, in the process of deployment, there exists corruption that cables wind with the force axis rotating. Previously, it was necessary to adjust the acquisition terminal according to the cable’s position to avoid cable breakage, which was extremely inconvenient. Besides the system uses single channel acquisition, which was inconvenient to multi-channel acquisition and data integration processing. In order to solve the above problems, an embedded and distributed wireless pressure sensor parameter acquisition system based on ESP8266 and LabVIEW is developed, which designs signal conditioning circuit and ADC acquisition module, uses the ESP8266 wireless module to deploy multi-point distributed networking. The terminal acquisition software is based on LabVIEW virtual instrument platform. Multithreading and low coupling QMH queue software framework is used. Function modules are developed independently to convenience developers to maintenance procedure in parallel. The software is able to realize the equipment communication , sensor calibration and data acquisition and processing, which uses the PSP server to share the test data dynamically and in real time, realizes the rapid data transmission through the network, and improves the data processing speed. The incremental integral separation PID algorithm is added to realize the linkage between the transmission mechanism and the sensor, which accurately controls the pressure parameter. Data dynamic fitting and overrun setting functions are also included. The system is stable in operation, which has high frequency of data acquisition, high control accuracy and engineering application value.

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汪新舜,吳星云,劉曉飛,邢香園,吳劍鋒.航天器展開(kāi)機構壓力傳感器無(wú)線(xiàn)測控系統設計計算機測量與控制[J].,2024,32(3):9-16.

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  • 收稿日期:2023-04-06
  • 最后修改日期:2023-06-03
  • 錄用日期:2023-06-05
  • 在線(xiàn)發(fā)布日期: 2024-04-01
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