A kind of rs485 bus ad hoc network full-duplex communication system and its address automatic addressing method

A communication system and ad hoc network technology, applied in the field of RS485 bus ad hoc network full-duplex communication system and its address automatic addressing, can solve problems such as reducing system operation efficiency, and achieve improving addressing efficiency, ensuring operation, reducing The effect of maintenance difficulty

Active Publication Date: 2022-06-28
UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The addressing command issued by the master requires each slave to respond, and then continues to address the subsequent slaves, which will also reduce the operating efficiency of the system

Method used

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  • A kind of rs485 bus ad hoc network full-duplex communication system and its address automatic addressing method
  • A kind of rs485 bus ad hoc network full-duplex communication system and its address automatic addressing method
  • A kind of rs485 bus ad hoc network full-duplex communication system and its address automatic addressing method

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Embodiment Construction

[0021] The technical scheme of the present invention is further described below, but the scope of protection is not limited to the description.

[0022] like figure 1 As shown, an RS485 bus ad hoc network full-duplex communication system includes a host terminal and a slave terminal. One host terminal and several slave terminals, each terminal contains two independent RS485 interfaces: interface A and interface B. Start from the host terminal interface B, connect to the first slave terminal interface A, the first slave terminal interface B is connected to the second slave terminal interface A, the subsequent slave terminals are connected in this way, and the last slave terminal interface B Connect the host terminal interface A. There is no fixed requirement on the position of the host terminal and each slave terminal. The terminal interface B of the current level is connected to the terminal interface A of the lower level. All the terminals are connected in series to form a ...

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Abstract

The present invention provides an RS485 bus ad hoc network full-duplex communication system and its address automatic addressing method; the system includes several terminals, the terminals are provided with two interfaces, and the interfaces between the terminals are connected in series to form a closed loop. There is a master terminal in the terminal, and the rest are slave terminals. In the present invention, the host and the slave are connected in series to form a ring network structure, and the system is designed with hardware redundancy to improve the reliability of the system; the assembly line addressing method is adopted to improve the addressing efficiency of the system; new terminals are automatically identified for network access, faults, and removal The equipment is automatically connected to the network, which simplifies the complexity of system setup and use; the Bypass function of the terminal RS485 interface reduces the impact of a single machine failure on the entire system network, ensures reliable system network operation, and reduces maintenance difficulty.

Description

technical field [0001] The invention relates to an RS485 bus self-organized network full-duplex communication system and an automatic addressing method thereof. Background technique [0002] Most of the existing ad hoc networks are a network structure with one master and multiple slaves, and can only be a network structure with one master and multiple slaves. If the host is damaged, the entire system communication network will be paralyzed; if there are two or more slaves sending data to the bus at the same time, it will cause bus conflict and communication errors. Therefore, the intelligent use of the host to initiate communication according to the slave address greatly affects the communication efficiency. [0003] In order to prevent the paralysis of the host computer from causing the paralysis of the entire system, such as a ring network based on RS485 bus with the patent number of CN 110034991A, the host terminal and the slave terminal use two independent RS485 interfa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/40H04L12/42H04L41/0663
CPCH04L12/40006H04L12/42H04L41/0663
Inventor 谭伟
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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