Network Air Conditioner Monitoring System Based On L-N Bus

In the current era of rapid development of information technology,various new sciences and new technologies have developed rapidly,which has promoted the continuous progress of human civilization.In many fields,the advance of computer technology,network communication technology and intelligent control technology is particularly prominent.Not only Internet of Things,network appliances and smart home have become the focus of social attention,but also many new technologies and their peripheral products have affected all aspects of people's lives,unconsciously changing people's living habits.Firstly,this thesis introduces the background and research status of the network home appliance monitoring system,and analyzes the problems and solutions in the implementation of the home network networking solution.Through in-depth research on various field bus technologies,a self-designed L-N(Local Monitoring Network)bus technology is used to design a practical solution for the construction of an air conditioner monitoring system.The system has a series of advantages such as uncomplicated wiring,convenient networking and low cost.Secondly,this thesis proposes a protocol model for the L-N bus and formulates the communication protocol mechanism.Designing an air-conditioning controller with a L-N bus communication interface and successfully simulating the control and management of air-conditioning equipment in the home monitoring network.The network air-conditioning controller uses the STC89C58RD+ microcontroller as a microcontroller,and has various actuators and sensors outside.It uses three-wire networking of AC to connect the local application server through a gateway node,enabling users to control and manage network air conditioners by monitoring the terminal locally or remotely.The system has the advantages of simple networking,no isolation,and strong system stability,which can effectively reduce the cost of smart house renovation and eliminate the need for complex home improvement cabling design.There are many disadvantages in the traditional one-way,single-point,and short-range control methods.The network air conditioner monitoring system proposed in this thesis adopts plug-and-play home appliances to access the network,which is safe and convenient.After entering the network,the network air-conditioning controller can achieve two-way,multi-point,remote monitoring and management.At the same time,the network air-conditioning node and the electrical monitoring node under the monitoring system network are perfectly compatible,and the configurability and linkage function make the entire system more powerful.Finally,several tests show that the design of the network air-conditioning controller is stable,reliable,practical,and effective.At the same time,the design of the network air conditioner monitoring system is general and can be effectively applied to the monitoring and management of all kinds of white household appliances in the home network.