Method of implementing embedded device address installation by RS 485 bus competition

A technology of embedded devices and device addresses, applied in the bus network, data exchange through path configuration, etc., can solve the problems of high anti-interference, loss of versatility, unsuitable for application, etc., to improve the degree of intelligence and high reliability Effect

Active Publication Date: 2008-04-16
ZTE CORP
View PDF0 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method is relatively simple, but the signal line is added, the versatility is lost, and the advantages of RS485 ar

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method of implementing embedded device address installation by RS 485 bus competition
  • Method of implementing embedded device address installation by RS 485 bus competition
  • Method of implementing embedded device address installation by RS 485 bus competition

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0057] Example one

[0058] A company has produced a certain type of embedded power system, which is widely used by various telecommunication equipment manufacturers and operators across the country. The power system consists of AC power distribution, DC power distribution, up to 10 rectifiers and monitoring units. Due to power density requirements and cost pressure, the rectifier does not have any human-computer interaction equipment except an alarm indicator and RS485 interface. Therefore, the monitoring unit needs to be connected to the 10 rectifiers through the RS485 bus, and through a simple communication protocol, polling to obtain the data and alarm information of each rectifier, and to control the operating status of the rectifier.

[0059] image 3 It is a hardware schematic diagram of the first embodiment of the present invention. As shown in the figure, due to the need for bus competition, the RS485 hardware control signal is slightly changed from the current common pr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for RS485 bus contention competition realizing an embedded equipment address setting. The object of the invention is to realize that the identifying and resetting of every equipment address can be finished under the premise that no signal transmission line is added. The invention comprises the steps as follows: (1) a monitoring host computer is cooperated with the equipment to identify whether the equipment address is abnormal; if so, the step (2) is switched to; if not, the step is over; (2) every equipment is noticed to enter the state of address reset by the monitoring host computer; (3) the monitoring host computer sends the order of setting equipment address to every equipment, and every equipment answer according current situation and resets address. The invention solves the problem that in the RS485 and other master-slave mode bus monitoring network, equipment causes bus conflict or incapable visit because of address losing. And the identifying and resetting of every equipment address can be finished under the premise that no signal transmission line is added. The advantage of high reliability of the RS485 is ensured.

Description

technical field [0001] The invention relates to a method for realizing address setting of an embedded device through bus competition, in particular to a method for using RS485 bus competition to realize address setting of an embedded device. Background technique [0002] With the development of technology and the improvement of living standards, more and more electronic products such as industrial control, medical treatment, communication, and consumption are increasingly intelligent, and embedded systems with microprocessors as the core are increasingly widely used. Management of intelligent equipment has also become a focus of embedded applications. Users can configure, manage and monitor it through the intelligent interface provided by the device, such as serial port, parallel port, Ethernet port, etc. The high-speed Ethernet interface based on the complex TCP / IP protocol is the future development direction, and realizes rich monitoring and management functions. However...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04L12/40H04L12/28
Inventor 熊勇
Owner ZTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap