The Drawer Equivalent Design In Multifunction Standard Cabinet Of Space Station

As the space shuttle become more and more large and complex, comparing withthe common space shuttle, the future space station will be larger, heavier, having moreequipment inside and the flight time in space will also be extended. The traditionalglobal placement, assembling and testing are not sufficient for the development of spacestation any more and a new solution for it has to be found based on the foreignadvanced design theory. Multifunction Standard Cabinet which integrated withmechanism, electricity and heat is a good solution for space station. It can achieve thestandard design and simplify the global assembling and testing for space station.Drawer Equivalent is one of the equipment used to test the Multifunction StandardCabinet on ground. In this thesis, the whole process of Drawer Equivalent developmentwill be described, including the incoming task requirement, task analysis, and circuitachievement. In order to fit the requirement and severe working condition, componentselecting, resource assignment, circuit design, reliability design， problems and theirsolution will be analyzed and demonstrated in detail in the circuit achievement part.DSP, FPGA, and their corresponding circuits made up of the hardware architectureof Drawer Equivalent. They are used to achieve all the functions of Drawer Equivalent,like1394network communication, analog signal generating, command receiving,temperature sampling, power consumption simulating, and network testing.Finally, the Drawer Equivalent passed a series of circumstance certification. Itshows that the functions and reliability of Drawer Equivalent accord with theanticipation.