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Satellite-borne 1553B bus communication optimization method

A technology of bus communication and optimization method, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as command inseparability, and achieve the effect of improving bus bandwidth utilization, reducing delay time, and improving scalability

Inactive Publication Date: 2016-10-12
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

However, the 1553B command is indivisible. A message with a data word must have a command word, and there is no message without a command word.

Method used

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  • Satellite-borne 1553B bus communication optimization method

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Embodiment Construction

[0020] The system based on 1553B bus on the star such as figure 1 shown. It contains a bus controller (BC), remote terminal (RT), remote terminal, mass storage and multiplexer, where the remote terminal is the payload with RT functionality. But not all payloads have the RT function, which requires a remote terminal to complete the RT function. The remote terminal provides 1553B service for the payload, organizes and collects the data of the payload, and transmits them to the bus. The data that needs to be stored on each terminal on the satellite is stored in a large-capacity memory, and error correction coding / decoding is performed. Multiplex data from different information sources into data that meets the data format requirements and release it. The large-capacity memory is used to complete the playback of data when the satellite passes through the ground receiving device. All of the above devices are managed by the bus controller (BC), and it can be seen that the devices...

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Abstract

The invention provides a satellite-borne 1553B bus communication optimization method. The main task of an optimization processing process mainly comprises the steps of dividing communication minimum cycles, reasonably organizing a message transmission sequence and producing an optimized bus table, therefore, two indexes of the bus load and average delay time of a communication system are reduced, and the performance of the communication system is improved. A bus controller organizes message transmission according to the optimized bus table. According to the optimized bus command table, the working efficiency of the communication system is enabled to reach a relatively ideal state, and namely the bus load and average delay time are optimum. According to the method, the delay time of the message transmission on a bus can be reduced, the bandwidth utilization rate of the bus can be improved, and the expandability of the command table can be improved.

Description

technical field [0001] The invention relates to a communication optimization algorithm and belongs to the technical field of bus transmission. Background technique [0002] The 1553B bus is proposed to meet the needs of industry and military. It has the longest application time and has high reliability and flexibility. In addition, the technology is relatively mature, so the 1553B bus has been widely used in military, industrial and scientific fields. As the system becomes more integrated and the data transmission capability is greatly improved, how to reasonably schedule various messages on the 1553B bus according to the requirements of the system ICD file to meet the system's requirements for real-time and reliability of message transmission, mining The potential of the 1553B system at the application mode level is a hotspot of current research. [0003] The satellite 1553B bus mounts a wide variety of equipment and complex situations, which raises the requirements for 15...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/26
CPCH04L41/145H04L43/0811
Inventor 张建东李丹史国庆吴勇朱岩任齐凤郤文清雷勇
Owner NORTHWESTERN POLYTECHNICAL UNIV
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