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Multi-computer communication method based on single-chip microcomputers

A communication method and single-chip microcomputer technology, applied in the field of multi-computer communication, can solve problems such as poor application effect, no effect evaluation, and inability to self-adaptive adjustment, so as to achieve the effect of simple implementation, simplified communication data volume, and avoiding endless loops

Active Publication Date: 2018-08-10
NINGBO UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Moreover, most of the methods do not carry out effect evaluation and cannot be adjusted adaptively, resulting in poor application effect

Method used

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  • Multi-computer communication method based on single-chip microcomputers
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  • Multi-computer communication method based on single-chip microcomputers

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Embodiment Construction

[0023] The following describes the embodiments of the present invention through specific specific examples, and those skilled in the art can easily implement the contents disclosed in this specification. A multi-computer communication system based on a single-chip microcomputer of the present invention is as follows: figure 2 As shown, it is assumed that the system consists of 1 master and 3 slaves, both of which are composed of single-chip microcomputers and are connected through RS422. The master and slave are addressed uniformly, the master address is 00, and the three slave addresses are 01, 10, and 11 in turn. The number of slaves can be increased according to the actual situation. The communication method is as follows figure 1 shown, including the following steps:

[0024] 1) The host sends command frames to the slaves one by one and scans the slave state. The command frame includes the start bit and the slave address S n , send inquiry and request to send four part...

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Abstract

The invention provides a multi-computer communication method based on single-chip microcomputers, which is used to realize master-slave type communication of a plurality of single-chip microcomputersand RS422 bus connection among the various single-chip microcomputers. A master computer is used to calculate priorities of various slave computers by using data lengths, scanning times, slave computer addresses, and then is used to allocate data transmission orders, until transmission of all data is completed, and at last, by adopting a communication efficiency quantization method, communicationefficiency is evaluated, and is used as a basis of priority parameter optimization. The priorities are adjusted dynamically, the communication efficiency optimization parameters are quantized, andtherefore the priorities are guaranteed, and line communication resources are fully used. According to the invention, realization is simple, and requirements on actual application are satisfied.

Description

technical field [0001] The invention relates to a multi-computer communication method based on a single-chip microcomputer. Background technique [0002] The single-chip microcomputer system is very extensive. Due to the limited system resources of the single-chip computer, communication has become a bottleneck in the application of the single-chip computer system. Especially in the case of multiple processors in the system, the single-chip microcomputer appears to be powerless. In order to deal with the situation of multiple processors, many communication methods have also been proposed, such as the invention patent "A master-slave multi-computer communication system and method based on UART (application number 201610977199.2)", the paper "computers and 51 series single-chip microcomputers have many Implementation of computer communication (author: Cheng Wansheng, etc.)", "Single-chip RS-485 multi-computer communication technology (author: Jiang Di)", "Design and implementa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40H04L29/06
CPCH04L12/40006H04L69/06
Inventor 何金保
Owner NINGBO UNIVERSITY OF TECHNOLOGY
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