Research And Design Of Indoor Environment Monitoring System Based On 6LoWPAN

With the continuous improvement of the quality of modern life,people's attention to the family environment is also constantly improved,the requirements of the family equipment is gradually intelligent,energy-saving.The current indoor monitoring system usually uses the ZigBee + gateway or the Bluetooth + gateway mode,and connected to the IPv4 network.But with mobile devices continue to access the Internet,IPv4 address has been exhausted,and IPv6 is imperative under such circumstance.And ZigBee + gateway mode because the underlying equipment can not directly access the Internet,it can not achieve point to point communication.If you want to achieve point-to-point communication,underlying device need to implement the IPv6 protocol,but usually the underlying hardware resources are limited,can not provide the resources that IPv6 needed.In order to solve this problem,IETF proposed 6LoWPAN protocolBased on the studying of 6LoWPAN technology,this paper describes a6 LoWPAN indoor environment monitoring system.The system consists of three parts:information acquisition module;light control terminal;network coordinator.Information collection module collecting then indoor environmental parameters,Light control terminal control intelligent lighting according to the illumination and personnel situation,the network coordinator is responsible for the formation of the network,also processing and transmission the information.The main work of this paper is as follows:First we design and implement the information acquisition module,The system information collecting module consists of a harmful gas information collecting module;an infrared pyroelectric human body information collecting module;a temperature and humidity information collecting module;a light illumination information collecting module.The core of the information acquisition is JN5168,and coupled with sensors,UART serial port,power supply circuit and other components.Next we implement a 6LoWPAN mesh network structure,in each node using JenNet-IP protocol stack,and achieve data transmission in 6LoWPANAnd then we designed and implemented a network coordinator to set up a6 LoWPAN network and solve the problem about data transmission and processing which due to different network structureFinally,we bulit an indoor environment monitoring system,and tested the functionality of the system Including intelligent dimming test;Data collecting and uploading test and data transmission test The test results show that this scheme can realize the requirements of intelligent dimming and environmental information data collection in indoor environment monitoring system.