基于数据融合的小卫星温度测量冗余设计方法

为了提高小卫星温度测量控制系统的可靠性,本文提出了一种基于数据融合算法的小卫星温度测量冗余设计方法.该方法克服了传统的小卫星设计中完全采用硬件备份的冗余设计方法而带来的过多功耗、体积和重量负担的缺陷,将数据融合算法运用到小卫星温度测量冗余设计中,运用数据融合的方法和同组传感器的综合支持度来判断传感器的工作状态.利用软、硬件结合的方法,利用有限的硬件备份为每个温度传感器提供冗余设计.实验证明,该方法可以提高小卫星温度测量系统的可靠性和稳定性,同时也减小了小卫星的冗余设计带来的功耗、体积和重量负担.

Redundant design method for small-satellite temperature testing system based on data fusion

In order to increase the accuracy of temperature test and control system of small satellite,a redundant design method is presented,which is based on data fusion.Traditional redundant design method in small satellite design uses spare hardware,therefore greatly increases the power consumption,volume and weight of the satellite.The proposed redundant design method overcomes the shortcomings of traditional design method.In this design method,multi-sensor data fusion algorithm is used to give the reference value for each sensor in every group.Finally,an experiment was carried out.The experiment result indicates that this redundant design method can significantly increase the reliability and stability of the temperature test and control system with less spare hardware.