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Intelligent accessing device identification system based on RS 485 industrial bus

A technology of access equipment and intelligent identification, applied in the direction of bus network, data exchange through path configuration, etc., to achieve the effect of reducing technical level requirements, simplifying installation configuration and maintenance

Inactive Publication Date: 2015-09-30
JIANGXI FASHION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

When there are several devices in the bus whose access is unknown, the address of the access device is unknown, the type of the access device is unknown, and how to access the access device is unknown, the traditional RS485 bus management system is helpless

Method used

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  • Intelligent accessing device identification system based on RS 485 industrial bus
  • Intelligent accessing device identification system based on RS 485 industrial bus
  • Intelligent accessing device identification system based on RS 485 industrial bus

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Embodiment Construction

[0013] An intelligent identification system for access equipment based on RS485 industrial bus. The host and several access devices are connected together through the bus. The host sends broadcast data frames to each device at different baud rates in turn, and the baud of the signal sent to the host After receiving the signal, the devices with the corresponding rate send response frames to the host in turn to realize the intelligent identification of the device by the host; the broadcast data frame includes the device information address field, the item number, the broadcast number and the check field; the response frame includes The address type field, function code, data field and check field of each device, each device automatically time-multiplexes the bus according to its own project number and broadcast number through the baud rate; the said time-multiplexes the bus according to the broadcast number There is a half frame length difference between two adjacent response fram...

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Abstract

The invention discloses an intelligent accessing device identification system based on an RS 485 industrial bus. A host and a plurality of accessing devices are connected together through buses, the host sends broadcasting data frames to various devices with different baud rates, and the devices with corresponding baud rates of the signals sent by the host send response frames sequentially to the host upon reception of the signals to realize intelligent identification of the devices by the host. The intelligent accessing device identification system simplifies the installation, configuration and maintenance of industrial on-site RS 485 buses, lowers technical requirements on operators, and realizes more intelligent and convenient installation and maintenance.

Description

Technical field [0001] The invention relates to an intelligent identification device for access equipment applied in the structural safety and health monitoring industry in the field of civil engineering, in particular to an intelligent identification system for access equipment based on an RS485 industrial bus. Background technique [0002] Because the RS485 industrial bus cannot be used at the same time in the industrial field, each device in the bus needs to have a clear address known in advance, and the host communicates with the slave device by determining the address. When there are several devices in the bus with unknown access, the address of the access device is unknown, the type of the access device is unknown, and how the access device is accessed is unknown, the traditional RS485 bus management system is powerless. Summary of the invention [0003] Aiming at the defects in the traditional RS485 bus management system, the present invention provides an intelligent identi...

Claims

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Application Information

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IPC IPC(8): H04L12/40
Inventor 王辅宋刘文峰杨松远刘付鹏李松
Owner JIANGXI FASHION TECH
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