Research On Application Of 1553B Bus Interface In The Integrated Measurement And Control System

The digital time-division command / respond multiplex data bus(1553B), with simple structure, convenient terminal extension, good real-time performance, high reliability and high system management ability, now has been widely applied to control and data management systems of space vehicle. Thus, not only does the ground integrated measurement and control system have the abilities of measurement, control, data collection and data processing, but also has the communication function with 1553 B data bus.In this paper, based on the summary of the ground integrated measurement and control system used to the spacecraft which has the communication functions of 1553 B data bus, the author firstly analyzes the protocol criterions of 1553 B data bus and the implement methods of 1553 B communication interface. On this basis, the realization technology of communication interface based on 1553 B protocol chip is determined. Next, the author gives the ground measurement and control system of the overall design and constitute the design of 1553 B interface, of which communication interface of the core board and expansion board to achieve, independent of the 1553 B expansion board can in the realization of 1553 B communication interface function at the same time, does not affect the realization of the system other ground measurement and control function. Finally, based on the design plan of the system, the paper completes the realization of the scheme selection of hardware, the circuit design of the core board and 1553 B expansion board, bus communication interface module software design, completed the system tasting and experiment verification. The testing results are shown that the ground integrated measurement and control system is suitable for the design requirements of 1553 B communication interface.Currently, the system has been delivered and successfully carried out with the Unit Testing.