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为实时监视空间光学遥感器的工作状态并在其产生异常时自动告警,设计了基于遥感器工作命令集合的功率特性分析方法。通过采集和迭代不同命令集与功率间的对应关系,得到基于命令集的动态阀值函数。针对浪涌和命令的延迟等实际情况,优化了阀值函数,并应用于功率监控系统。该监控系统采用20Hz的功率信息采集频率,对某命令更新周期为512ms的空间光学遥感器12.5天的热循环实验过程进行监视,结果表明:该方法准确地监视了遥感器的状态,告警正确,无虚警现象,使空间光学遥感器的功率告警达到实用阶段。
In order to monitor the working status of the space optical remote sensor in real time and automatically alarm when it occurs abnormality, a power characteristic analysis method based on the working orders of the remote sensor is designed. By collecting and iterating the correspondence between different command sets and power, a dynamic threshold function based on command set is obtained. For the actual situation of surge and command delay, the threshold function is optimized and applied to the power monitoring system. The monitoring system uses the frequency of 20Hz power information acquisition to monitor the thermal cycling experiment of a space optical remote sensor with a command update cycle of 512ms for 12.5 days. The results show that the method accurately monitors the status of the remote sensor, No false alarm phenomenon, so that space optical remote sensor power alarm reached a practical stage.