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CLC number: TP39
On-line Access: 2012-01-19
Received: 2011-03-31
Revision Accepted: 2011-08-04
Crosschecked: 2011-12-08
Cited: 2
Clicked: 7505
Design and implementation of the highly-reliable, low-cost housekeeping system in the ZDPS-1A pico-satellite
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Yu Zhang, Yang-ming Zheng, Mu Yang, Hui Li, Zhong-he Jin. Design and implementation of the highly-reliable, low-cost housekeeping system in the ZDPS-1A pico-satellite[J]. Journal of Zhejiang University Science C, 2012, 13(2): 83-89.
@article{title="Design and implementation of the highly-reliable, low-cost housekeeping system in the ZDPS-1A pico-satellite",
author="Yu Zhang, Yang-ming Zheng, Mu Yang, Hui Li, Zhong-he Jin",
journal="Journal of Zhejiang University Science C",
volume="13",
number="2",
pages="83-89",
year="2012",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.C1100079"
}
%0 Journal Article
%T Design and implementation of the highly-reliable, low-cost housekeeping system in the ZDPS-1A pico-satellite
%A Yu Zhang
%A Yang-ming Zheng
%A Mu Yang
%A Hui Li
%A Zhong-he Jin
%J Journal of Zhejiang University SCIENCE C
%V 13
%N 2
%P 83-89
%@ 1869-1951
%D 2012
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.C1100079
TY - JOUR
T1 - Design and implementation of the highly-reliable, low-cost housekeeping system in the ZDPS-1A pico-satellite
A1 - Yu Zhang
A1 - Yang-ming Zheng
A1 - Mu Yang
A1 - Hui Li
A1 - Zhong-he Jin
J0 - Journal of Zhejiang University Science C
VL - 13
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SP - 83
EP - 89
%@ 1869-1951
Y1 - 2012
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.C1100079
Abstract: 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.
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