某型地面电源自动测试系统设计

发布时间：2019-02-22 11:05

【摘要】：某型地面电源是某型火箭地面测发控系统中的一个部分,用于某型运载火箭在地面测试期间给箭上电气系统和地面测试单机设备供电和在发射期间给电爆管供电点火。地面电源的工作情况直接关系到火箭在整个测试流程中的测试状态,所以在地面电源恢复期间对电源的单机测试就显得尤为重要。同时,目前所使用传统的人工测试方法已经越来越不能满足运载火箭测试高可靠性、周期短、自动化程度高的要求,设计自动测试设备已成为现代航天技术的发展趋势,在测试过程中引入自动测试系统也成为设计新设备的标准之一。本文设计了一种某型地面电源的自动测试系统,用以在地面电源恢复阶段对其进行功能性考核,确认其是否满足能够完成后续发射任务的要求。硬件部分设计以STM32F103芯片作为测试系统的控制部分,设计了测试系统硬件部分的指令模块、采样模块、人机交互模块、存储部分、报警部分和电源模块等功能模块,软件部分编写了主程序、测试流程、A/D转换程序、通信程序、LCD显示程序、SD读写程序、报警程序、中断程序等软件模块,对采样数据可以在硬件和软件利用算法进行优化,减小了信号非线性、温漂和电磁干扰,满足完成地面电源的整个测试流程,对测试过程中的采样数据进行判读记录,最后形成测试报告的基本要求。通过测试系统初样设备在地面电源上的实机测试,系统运行稳定、各功能模块工作正常,各项测试指标均达到了预期设计要求,在现有测试数据证明测试系统硬件设计合理、软件功能正常,全面快速地完成测试流程,能够充分满足对地面电源的自动化测试工作的要求。
[Abstract]:A certain type of ground power supply is a part of the ground test and launch control system of a certain rocket. It is used for a certain type of carrier rocket to supply electricity to the onboard electrical system and the single equipment of the ground test during the ground test and to supply the electric detonator to ignite the fire during the launching period. The working condition of the ground power supply is directly related to the test state of the rocket in the whole testing process, so it is very important to test the power source on a single machine during the recovery of the ground power supply. At the same time, the traditional manual test methods used at present have been unable to meet the requirements of high reliability, short period and high degree of automation of carrier rocket testing, so the design of automatic test equipment has become the development trend of modern space technology. The introduction of automatic test system in the testing process has also become one of the standards for designing new equipment. In this paper, an automatic test system for ground power supply is designed, which is used to check the function of ground power supply during the recovery stage, and to confirm whether it meets the requirements of the subsequent launch task. In the hardware part, the STM32F103 chip is used as the control part of the test system. The command module, the sampling module, the man-machine interaction module, the storage module, the alarm part and the power module of the hardware part of the test system are designed. The main program, test flow, A / D conversion program, communication program, LCD display program, SD read and write program, alarm program, interrupt program and other software modules are written in the software part. The sampling data can be optimized in hardware and software to reduce the signal nonlinearity, temperature drift and electromagnetic interference, satisfy the whole test flow of ground power supply, and read and record the sampling data in the testing process. Finally, the basic requirements of the test report are formed. Through the test of the initial equipment of the test system on the ground power supply, the system runs stably, each functional module works normally, and all the test indexes meet the expected design requirements. The existing test data prove that the hardware design of the test system is reasonable. The function of the software is normal and the testing process is completed completely and quickly, which can fully meet the requirements of the automatic testing of the ground power supply.
【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：V556

【参考文献】