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Wireless modbus system based on Lora technology

A wireless and technical technology, applied in the field of wireless communication network, can solve problems such as difficulties, achieve the effect of avoiding interference, solving wiring difficulties, and reducing security risks

Active Publication Date: 2018-01-26
HANGZHOU THINGCOM INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem solved by the present invention is to provide a wireless modbus system based on Lora technology for the above-mentioned existing technical defects, which is used to replace the traditional RS485 bus, solve the problem of difficult wiring between devices, and improve the development efficiency of users

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  • Wireless modbus system based on Lora technology
  • Wireless modbus system based on Lora technology
  • Wireless modbus system based on Lora technology

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Embodiment Construction

[0020] The invention consists of a Lora to modbus concentrator (AP), a Lora to modbus node (ED) and upper computer software. On the physical wiring, the AP is connected to the master on the traditional RS485 bus, and the ED is connected to the slave on the traditional RS485 bus. AP and ED form a wireless star network through self-organization to replace the original RS485 wired star network. The application layer protocol still retains the user's original modbus protocol unchanged. At the wireless network level, data transmission is carried out in the Lora modulation mode through the wireless private protocol, and the addressing is performed according to the modbus address through the adaptive learning mechanism, and the information is sent to the AP or ED in a transparent transmission manner.

[0021] figure 1 A schematic diagram of the hardware interface of the AP or ED device 100 that facilitates the use of the present invention is shown, and the hardware interfaces of ...

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Abstract

The invention discloses a wireless modbus system based on a Lora technology. According to the wireless modbus system based on the Lora technology disclosed by the invention, in the aspect of physicalconnection, an AP is connected with a host on a traditional RS485 bus; an ED is connected with a slave on the traditional RS485 bus; the AP and the ED form a wireless star network in a self-organization form; an application layer protocol still keeps the original modbus protocol of a user same; and a wireless network level performs data transmission through a wireless private protocol in a Lora modulation mode, performs addressing through a self-adaptive learning mechanism according to a modbus address, and sends information to the AP or the ED in a transparent transmission mode. By means of the wireless modbus system based on the Lora technology disclosed by the invention, the user does not need to change the original protocol; a wired system can be converted into a wireless system without secondary development; the wireless modbus system based on the Lora technology is specifically suitable for being used in the severe environments, such as subways, dam safety monitoring, side slopesand bridges, for a long time; and the wireless modbus system based on the Lora technology is particularly suitable for monitoring a scene having a complex field environment and difficult wiring.

Description

technical field [0001] The invention relates to a wireless communication network, in particular to a wireless modbus system based on Lora technology. Background technique [0002] With the rise of Lora technology, many Lora-related products have appeared on the market, and many module manufacturers have also launched similar products, such as point-to-point transparent transmission modules and Lora-to-serial port modules. Most products have the following drawbacks: [0003] 1. Single function. Some products can only realize point-to-point communication. [0004] 2. Poor networking compatibility. Some products identify the network according to their own addresses. Once it involves networking and communication, users need to carry out secondary development, and the user's original protocol needs to be changed, but many users do not have the ability to develop. [0005] 3. Poor networking performance. Some products are networked through transparent transmission. Because th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/40H04L12/44H04L29/06
Inventor 陈科明曾佳林董源
Owner HANGZHOU THINGCOM INFORMATION TECH
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