New technique: Design and implementation of the highly-reliable, low-cost housekeeping system in the ZDPS-1A pico-satellite

作     者：Yu ZHANG Yang-ming ZHENG Mu YANG Hui LI Zhong-he JIN 

作者机构：College of Aeronautics and AstronauticsZhejiang UniversityHangzhou 310027China 

基　　金：supported by the Foundation for the Author of National Excellent Doctoral Dissertation of China (No. 200035) the Ministry of Education Science & Technology Research Project, China (No.104069) 

出 版 物：《Journal of Zhejiang University-Science C(Computers and Electronics)》 (浙江大学学报C辑（计算机与电子（英文版）)

年 卷 期：2012年第13卷第2期

页      码：83-89页

摘      要：The ZDPS-1A pico-satellite designed in Zhejiang University with a mass of 3.5 kg and a power consumption of less than 3.5 W is the smallest satellite in China up to now. The housekeeping system (HKS) is the core part of ZDPS-1A. The reliability of HKS has an important influence on the safety of the satellite. Traditional fault-tolerant methods do not apply to ZDPS-1A due to such pico-satellite characteristics as light weight, compactness in size, energy saving, and high integration. This paper deals with a highly-reliable, low-cost design for HKS using industrial devices. The reliable strategies of HKS include a dual modular redundancy scheme, CPU warm backup, a static triple modular redundancy scheme, and two-level watchdogs. Recursive experiments, special tests, and environmental tests show that this system meets the design target. This design has already been applied to ZDPS-1A, which was launched to execute in-orbit tasks on Sept. 22, 2010. To date, the satellite has been in a proper state for more than 15 months.

主 题 词：微型卫星 卫星设计 高可靠 低成本 系统 技术 环境试验 冗余方案 

学科分类：0810[工学-土木类] 08[工学] 082501[082501] 0805[工学-能源动力学] 082503[082503] 0825[工学-环境科学与工程类] 0812[工学-测绘类] 

核心收录：

D　O　I：10.1631/jzus.C1100079

馆 藏 号：203519107...