Application of Lora wireless communication module Lora technology in smart home light control

One 、 summary

Lights can be seen everywhere in life , One of the traditional lights is that each light corresponds to a different switch , such as ： Chandeliers at home 、 Wall lamp 、 Floor lamp 、 Desk lamp, etc , One is a one button master switch , such as ： Street lights on the road , Stage lights at the concert , Hotel integrated control touch pad, etc . For example, the wiring structure and switch position have been determined at the beginning of lighting design , Cannot be easily changed .

With the development of smart home , More and more traditional enterprises are developing towards the field of smart home , Among them, intelligent lamp control is one of the most concerned technologies . On this basis, smart switches and smart bulbs have emerged , Compared with traditional lighting control , Intelligent light control can save electricity 20%~30% Even higher . The common intelligent light control system is Bluetooth module and ZIGBEE modular , This kind of light control system is suitable for small-scale control at home , A large number of routes are required , And because of the 2.4GHz Frequency band , Interference is inevitable . Compared with the above , Use LoRa Technology to design intelligent lamp control scheme , Will solve the problem of being susceptible to interference , Close communication distance , Poor stability and so on .

Two 、 application

Chengdu yibaite Electronic Technology Co., Ltd. is a company dedicated to R & D and production , Developed by the company LoRa The module involves 170MHz、433MHz、868MHz and 915MHz Four bands ,100mW、500mW、1W and 5W Four power levels , Contains RS232/RS485、UART,SPI And other interface modes , It greatly satisfies the module selection of different customer groups .

In the traditional lighting engineering of large places , Not only manual management is required , And because of the complexity of the site environment , Once the laying of buried lines is unreasonable , When there are problems such as harmonic signal interference around , It will cause great difficulties in troubleshooting , Thus, the maintenance cost is increased .

Based on Bluetooth module and ZIGBEE Intelligent light control of the scheme , By connecting to a mobile phone APP It can control the switch of the lamp 、 brightness 、 Set the switching time 、 Statistics of power consumption and other functions . Although the scheme has convenient control , Various functions , Operate quickly , Simple design and development , But there is also a weak penetration capability , Susceptible to interference , Insufficient transmission distance .

LoRa The module is an ultra long distance wireless transmission module based on spread spectrum technology , It has a wide coverage in the application of intelligent lamp control , Strong anti-interference performance , There are many nodes , Low power consumption , The architecture is easy , The operating frequency is free . Intelligent lighting management mainly includes nodes and gateways , The nodes are made up of LoRa modular , Core control board , Lamp body composition , Wiring construction is not required , At the same time, due to its wide coverage , The number of gateways is greatly reduced, thus reducing the construction cost .LoRa Superior anti-interference performance , Even long-distance complex environment control can ensure stable and reliable data transmission , It is very suitable for urban roads with high-rise buildings 、 A train with strong signal shielding 、 Large shopping malls with noisy crowds 、 Basement, tunnel and other complex environment .