红外与激光工程
紅外與激光工程
홍외여격광공정
INFRARED AND LASER ENGINEERING
2014年
5期
1549-1554
,共6页
吴伟平%金龙旭%王栋%孙天宇
吳偉平%金龍旭%王棟%孫天宇
오위평%금룡욱%왕동%손천우
功率特性分析%空间光学遥感器%告警%动态阀值
功率特性分析%空間光學遙感器%告警%動態閥值
공솔특성분석%공간광학요감기%고경%동태벌치
power characteristic analysis%optical remote sensor%alarm%dynamic threshold function
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20 Hz的功率信息采集频率,对某命令更新周期为512 ms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。
為實時鑑視空間光學遙感器的工作狀態併在其產生異常時自動告警,設計瞭基于遙感器工作命令集閤的功率特性分析方法。通過採集和迭代不同命令集與功率間的對應關繫,得到基于命令集的動態閥值函數。針對浪湧和命令的延遲等實際情況,優化瞭閥值函數,併應用于功率鑑控繫統。該鑑控繫統採用20 Hz的功率信息採集頻率,對某命令更新週期為512 ms的空間光學遙感器12.5天的熱循環實驗過程進行鑑視,結果錶明:該方法準確地鑑視瞭遙感器的狀態,告警正確,無虛警現象,使空間光學遙感器的功率告警達到實用階段。
위실시감시공간광학요감기적공작상태병재기산생이상시자동고경,설계료기우요감기공작명령집합적공솔특성분석방법。통과채집화질대불동명령집여공솔간적대응관계,득도기우명령집적동태벌치함수。침대랑용화명령적연지등실제정황,우화료벌치함수,병응용우공솔감공계통。해감공계통채용20 Hz적공솔신식채집빈솔,대모명령경신주기위512 ms적공간광학요감기12.5천적열순배실험과정진행감시,결과표명:해방법준학지감시료요감기적상태,고경정학,무허경현상,사공간광학요감기적공솔고경체도실용계단。
For monitoring the work states of optical remote sensor in real time and automatically alarming when the work states are abnormal, the power characteristic analysis method based on command sets of optical remote sensor was developed. By sampling and iterating the relationship between power and various command sets, the dynamic threshold function based on command sets was summarized. And the threshold function was optimized, since some actual conditions must be considered such as surge, command delay and so on. And the optimized threshold function was applied to the power monitor and control system. The system adopted 20 Hz sample frequency to monitor the power of optical remote sensor in the heat cycle experiment, which would last 12.5 days. The command refresh cycle was 512 ms of the optical remote sensor. The results show the method can exactly monitor states of optical sensor and alarm when the states are abnormal. That puts power alarm method of optical remote sensor into practice and has great value to tester.