Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

RS485 hub unit supporting multiple protocols

A RS485, multi-protocol technology, applied in the field of hubs, can solve the problem that the RS485 bus cannot be parsed locally

Active Publication Date: 2018-07-31
HENAN PINGGAO ELECTRIC +2
View PDF10 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides an RS485 collection and distribution unit supporting multiple protocols, which is used to solve the problem that the RS485 bus cannot be analyzed on the spot during the transmission process

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
  • RS485 hub unit supporting multiple protocols

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The invention provides an RS485 assembly and distribution unit supporting multiple protocols, which is used to solve the problem that the RS485 bus cannot be analyzed on the spot during the transmission process.

[0020] To achieve the above object, the technical solution provided by the invention is:

[0021] An RS485 distribution unit supporting multiple protocols, including a processor, the processor is connected with a master RS485 interface and at least two slave RS485 interfaces, the master RS485 interface is used to connect the master device, and the slave RS485 interface is used to connect the slave device;

[0022] The processor is provided with an address mapping module, a protocol library module and a data storage module; the protocol library storage module is provided with characteristic parameters, and the characteristic parameters include at least data length information and characteristic data segment information; in the address mapping module There is a ...

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 provides an RS485 hub unit supporting multiple protocols. The hub unit comprises a processor; the processor is connected with a master RS485 interface and at least two slave RS485 interfaces; the processor is provided with an address mapping module, a protocol library module and a data storage module; feature parameters are set in the protocol library module; virtual addresses corresponding to slave devices are set in the address mapping module; after receiving data of the slave RS485 interfaces, the processor obtains information parameters in the data according to the protocol library module, and stores the information parameters and the corresponding virtual addresses in the data storage module; and when receiving a data reading instruction of the master RS485 interface, the processor determines the virtual address corresponding to the instruction and reads corresponding data information according to the virtual address. According to the technical scheme provided by thehub unit, the transmitted data is read and analyzed in a data forwarding process; and the problem of on-site analysis incapability in an RS485 bus transmission process can be solved.

Description

technical field [0001] The invention belongs to the technical field of hubs, and in particular relates to an RS485 collecting and distributing unit supporting multiple protocols. Background technique [0002] The RS485 interface is a low-cost bus interface that can realize point-to-multipoint communication. It is widely used in data acquisition, equipment automation control and other fields. However, as the structure of the RS485 bus system becomes more and more complex, the stability of the RS485 bus system Then it got worse and worse. [0003] In order to ensure the stability of the RS485 bus system, the commonly used method is to set up an RS485 hub in the RS485 bus system. The RS485 hub can divide a single 485 bus into multiple 485 buses, and supports star connection, thus changing the single structure of the original RS485 bus, without changing the device itself, it can realize different functions of devices or devices in different areas to be treated separately , and...

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): G06F13/42G06F13/40
CPCG06F13/4068G06F13/4282G06F2213/0002
Inventor 彭跃辉岳雪亭王岩妹刘逸凡尹军华寇新民陈富国
Owner HENAN PINGGAO ELECTRIC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com