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Development of GJB1188A Bus Signal Monitoring and Recording Device

Author: XieJianQiang
Tutor: JiangShouDa
School: Harbin Institute of Technology
Course: Instrument Science and Technology
Keywords: GJB1188A 1553B bus monitor Vedio signal sample Digital signal sample
CLC: V248.2
Type: Master's thesis
Year: 2008
Downloads: 16
Quote: 1
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GJB1188A Standard is a national military standard that is widely used in the field of aerial. It defines a standard of aero suspender which makes one kind of plane be compatible with different kinds of suspenders or one kind of suspendder be compatible with different kinds of planes , it resolves the problem of the connect of plane and suspender. Therefore, the development of GJB1188A bus equipment with the function of signal monitoring has important meaning for supplying debug tool for aero suspender.After the studying of GJB1188A Standard, the device adopts ARM as its CPU and Linux as its mac os, a proposal is advanced, which designs a device having the function of monitoring and recording 1553B bus data, vedio signal and I/O signal.With the control of ARM, adopting technical protocol processor chip and using its inside RAM as its temporary memory, and through the MCU answers the message interrupt of technical protocol processor chip and accesses the RAM, the device implements monitoring and recording the 1553B bus data.Based on the technology of MPEG-4 compressing and encoding, adopting IME6400 as its vedio compressed and encoded machine, with the management of the system software, the device implements the function of monitoring and recording real time vedio signal,whose memory is U disk.A logic control state machine is designed to sample the digital I/O signal, and a FIFO is used to store the I/O data.The drivers of 1553B bus monitor module态vedio signal sample module and digital I/O signal sample module is developed by C code under the environment of Linux programming, which actualize the initialization of GJB1188A bus funct-ion modules and offer file function to application program. At last, the applica-tion program of device is developed to monitor and store real time signal.The result of test and actual run of the device indicates the validity of the principle of the device designing and the reliability of the function of monitoring GJB1188A bus real time signal, its design accords with the demand of the device.

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CLC: > Aviation, aerospace > Aviation > Aircraft instrumentation,avionics, flight control and navigation > Scientific exploration equipment and instruments > Recording equipment and instruments
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