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LoRa remote control system based on ModBus protocol and control method

A remote control system and protocol technology, applied in the field of the Internet of Things, can solve the problems of unstable online status of the universal remote control, acquisition of device status information, inconvenient centralized management of equipment, etc., and achieve the effect of solving the unstable control of the universal remote control

Inactive Publication Date: 2019-10-22
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the traditional control method is oriented to individual devices. For each different smart device, the user needs to repeat a series of same steps such as network configuration and binding of the new device.
Especially for application users of enterprises and institutions, each office or floor needs a large number of smart devices, and each device requires different network configurations, which is an extremely complicated and cumbersome process
[0004] Moreover, the commonly used wifi signal distance is relatively short, and the stability is poor, which makes some universal remote controllers unstable online, unable to control the equipment well and obtain the status information of the equipment, which in turn makes the operation and management complicated and cumbersome, and centralizes the equipment. Management is very inconvenient
The user experience is going to be very bad

Method used

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  • LoRa remote control system based on ModBus protocol and control method
  • LoRa remote control system based on ModBus protocol and control method
  • LoRa remote control system based on ModBus protocol and control method

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1 The overall structure of the infrared control system of the present invention

[0022] The overall structural block diagram of the LoRa remote control system based on the ModBus protocol of the present invention is as figure 1 shown. The whole system consists of three parts: IoT server platform, mobile APP, LoRa remote control system. The server platform of the Internet of Things is the center of the mobile phone APP and the LoRa remote control system, and realizes the indirect connection between the mobile phone APP and the LoRa remote control system. The mobile phone APP is an application for user operation, and the universal remote control in the LoRa remote control system is for equipment terminals that can be remotely controlled by infrared.

Embodiment 2

[0023] Embodiment 2 The transmission protocol of the ModBus that the present invention applies

[0024] The ModBus transmission protocol diagram is as follows figure 2 As shown, the user controls and obtains the status of the universal remote controllers with different addresses through the ModBus protocol. Based on the ModBus protocol, the transmission format is address + function code + data + check code. Different ModBus function codes represent different operation commands. For example, if you want to control the universal remote control device 1, the address code is 0x01; the ModBus control command is 0x10; add the corresponding data bits, and generate a CRC-16 check code at the end. Control the universal remote.

Embodiment 3

[0025] Embodiment 3 Binding of mobile phone APP and universal remote controller of the present invention

[0026] The mobile phone APP of the present invention requests the server platform of the Internet of Things to bind a certain universal remote control process as follows: image 3 shown. Each universal remote control has its corresponding ModBus address, and every time it is powered on, it will send the registration information of its ModBus address to the IoT server platform, and the IoT server platform will store this ModBus address in the form; if the user wants to add The number of universal remote controls that can be controlled only requires the user to send the corresponding universal remote control ModBus address and binding instructions to the IoT server platform through the mobile APP, and the IoT server platform will bind this address to the mobile APP. If the user no longer uses a certain universal remote control device, he can send the ModBus address of the ...

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Abstract

The LoRa remote control system based on a ModBus protocol and a control method of the present invention belong to the technical field of IoT. The LoRa remote control system based on the ModBus protocol includes: an IoT server platform, a smartphone APP, and a LoRa remote control system. The LoRa remote control system consists of LoRa gateways and universal remote controllers. The control method ofthe LoRa remote control system based on the ModBus protocol includes the main steps that the smartphone APP sends a control command to the IoT server platform; the IoT server platform firstly sends the command to the LoRa gateway of a selected universal remote controller; the LoRa gateway wirelessly transmits the command to the universal remote controller through the LoRa based on the ModBus address of the universal remote controller; and the universal remote controller sends a corresponding infrared code according to the command to control a selected device. The LoRa remote control system solves the complicated wifi network configuration caused by a large number of universal remote controllers and a small application range of the universal remote controller caused by the small coverage of the wifi.

Description

technical field [0001] The invention belongs to the technical field of the Internet of Things, and in particular relates to a LoRa remote control system based on the ModBus protocol and an implementation method thereof. Background technique [0002] With the popularity of terminal equipment such as air conditioners, TVs, and set-top boxes, IoT control has become more and more abundant and convenient. Users can completely control smart terminal equipment through the mobile phone APP around them. [0003] However, the traditional control method is oriented to individual devices. For each different smart device, the user needs to repeat a series of same steps such as network configuration and binding of the new device. Especially for application users in enterprises and institutions, each office or floor needs a large number of smart devices, and each device requires different network configurations, which is an extremely complicated and cumbersome process. [0004] Moreover, ...

Claims

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Application Information

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IPC IPC(8): G08C17/02G08C23/04
CPCG08C17/02G08C23/04
Inventor 顾海军苗欣张科刘书赫刘浩予刘美琪朱书村
Owner JILIN UNIV
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