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Dual host communication method, system, industrial control gateway and storage medium on communication bus

A technology of communication bus and communication method, applied in the direction of bus network, transmission system, digital transmission system, etc., can solve the problems of high reconstruction cost and data stability cannot be guaranteed, and achieve the effect of timely transmission

Active Publication Date: 2021-12-14
IND INTERNET INNOVATION CENT (SHANGHAI) CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the inventor found that the modification cost of the above-mentioned method is relatively high, and since the data passes through the forwarding device during the transmission process, the stability of the data in the entire communication system cannot be guaranteed

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  • Dual host communication method, system, industrial control gateway and storage medium on communication bus
  • Dual host communication method, system, industrial control gateway and storage medium on communication bus
  • Dual host communication method, system, industrial control gateway and storage medium on communication bus

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Embodiment Construction

[0026] In order to solve the above problem, the present invention provides a communication method for dual hosts on a communication bus.

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art can understand that in each embodiment of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in this application can also be realized.

[0028] The first embodiment of the present invention relates to a communication method for dual hosts on a communication bus, and this embodiment is applied to an industrial control gateway. Its system structure is as...

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Abstract

The embodiment of the invention relates to the field of electronic communication, and discloses a communication method for dual hosts on a communication bus, an industrial control gateway, a system and a storage medium. In the present invention, the industrial control gateway is used to listen to the first signal sent from the first host to the slave device; according to the first signal intercepted, the idle gap time of the first signal in the communication cycle is calculated; A second signal is transmitted during the idle interval of the first signal, and the second signal is a communication signal obtained from the second host and to be transmitted to the slave device. Thus, the communication between the dual hosts on the same bus is realized, and the efficiency of data transmission between the dual hosts and the slave devices is improved.

Description

technical field [0001] The embodiment of the present invention relates to the field of electronic communication, and in particular to a communication method for dual hosts. Background technique [0002] At present, in the field of equipment communication, most sites use bus interfaces for communication. In this communication mode, at most one device can send digital signals at the same time, and other devices can only receive them. If multiple devices send digital signals at the same time, the signals received by other devices may be confused, unrecognized or unexpected signals will be generated after signal superposition, making the communication impossible to complete smoothly. [0003] In the actual application process of the industrial field, one device on the bus is defined as the master device, and other devices are defined as slave devices, such as instruments and meters. The master device sends command requests to the slave devices on the bus in turn, and then waits...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/40H04L12/403H04L29/08H04L12/66
CPCH04L12/40H04L12/403H04L67/12H04L12/66
Inventor 徐东黄海艇刘典勇郑忠斌张伟宏徐子攀
Owner IND INTERNET INNOVATION CENT (SHANGHAI) CO LTD
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