Redundant network design circuit of satellite commercial devices
A redundant network and design circuit technology, applied in hardware redundancy for data error detection, instruments, calculations, etc., can solve high system design requirements, affect the safety and reliability of the entire star, and high-performance commercial devices Low reliability and other problems, to achieve the effect of improving reliability, simple structure, and meeting the requirements of use
Inactive Publication Date: 2013-12-25
HARBIN INST OF TECH
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[0005] The main purpose of the present invention is to provide a redundant network design circuit for on-board commercial devices, which solves the problems of low reliability of high-performance commercial devices, high requirements for system design, and affecting the safety and reliability of the entire satellite in the design of existing satellite systems
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[0028] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.
[0029] Such as figure 1 As shown, it is a schematic diagram of the structure of the redundant network design circuit for on-star commercial devices of the present invention. The redundant network design circuit 1 of on-star commercial devices of the present invention includes a plurality of commercial devices 11, a plurality of voltage stabilizing modules 12, a data bus 13 and Arbitration control circuit 14, wherein, the plurality of commercial devices 11 are interconnected by data bus 13 to realize multiple functions, and any function is at least completed by two commercial devices, and the arbitration control circuit 14 collects the The state information of a plurality of commercial devices 11 (generally the watchdog output signal inside the commercial devices) controls the enable terminal of the voltage...
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The invention discloses a redundant network design circuit of satellite commercial devices, which comprises a plurality of commercial devices, a plurality of voltage stabilizing modules and an arbitration control circuit, wherein the commercial devices are interconnected through data buses to realize multiple functions, and any one function is fulfilled by at least two commercial devices; each voltage stabilizing module is connected with a commercial device; the arbitration control circuit is connected with the voltage stabilizing modules and the commercial devices respectively, and controls the enabling ends of the voltage stabilizing modules through collection of information of the states of the commercial devices so that the voltage stabilizing modules can supply power for the commercial devices stably. The redundant network design circuit of the satellite commercial devices realizes network design of satellite commercial devices, has a simple structure, and can improve the reliability of a satellite system adopting the commercial devices, reduce the requirement on performances of the commercial devices in satellite design, and meet the using requirements of design and development of the satellite system.
Description
technical field [0001] The invention relates to a design of a redundant network circuit, in particular a design circuit for a redundant network design of a commercial device. Background technique [0002] With the development and progress of space technology, space missions are becoming more and more complex, and the requirements for space vehicles are getting higher and higher, such as low cost and high reliability. High real-time performance, etc. In order to meet these requirements, countries all over the world are researching low-cost, high-performance commercial devices to replace expensive aerospace-grade devices. However, commercial devices have low reliability and have a high probability of failure in complex and harsh space environments. During the satellite’s in-orbit operation, it is affected by space particles, and commercial devices often have single-event flipping and single-event locking failures, which lead to satellite system failures. [0003] Traditiona...
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IPC IPC(8): G06F11/16G06F11/00
Inventor 李化义李璟璟李冬柏张迎春耿云海
Owner HARBIN INST OF TECH