Wireless network-controlled power socket and energy consumption intelligent analysis system

A brief introduction to the main contents of the project

This project studies wireless network-controlled power sockets and intelligent energy consumption analysis systems to solve the problem of energy consumption analysis of electrical appliances used in homes and offices. Use multi-channel sensors to continuously collect power consumption parameters of power sockets in real time, and transmit data to the internet network server through the wireless sensor Wi-Fi interface for power waveform analysis, spectrum analysis, report analysis, etc. Users can use mobile phones or PCs to browse web pages to instantly view electrical power consumption and harmonic apparent power, cut off power supply to useless equipment or equipment with hidden dangers, and help consumers achieve energy saving and safety goals; they can also identify electrical appliances connected to the power supply through waveform characteristics. This project can provide users with detailed power supply guidance and can also provide reference for home appliance manufacturers to reduce the energy consumption of home appliances.

There are several main innovations:

Real-time and continuous multi-channel low-power consumption measurement;

Use WiFi Ethernet to achieve data networking;

Power consumption monitoring through the Internet;

Energy consumption is intelligently analyzed on the server side, and different electrical appliances are identified through energy consumption waveforms.

2. Research Purpose and Significance of the Project

2.1 Necessity, purpose and significance of the application project

1> Necessity of the project

With the introduction of the concept of "Smart Earth" in the United States, the Internet of Things, as a concept in the intelligent infrastructure, has set off a technology craze around the world. The English name of the Internet of Things is "The Internet of Things", which is the Internet of things connected to each other. The core and foundation of the Internet of Things is still the Internet. Through wireless data transmission technology, according to the agreement, any object is connected to the Internet for information exchange and communication, so as to realize the network of intelligent identification, positioning, tracking, monitoring and management.

Power sockets provide power for various household appliances and are essential equipment in daily life. Traditional household power sockets only provide power interfaces and cannot display the power consumption of appliances at any time, which brings inconvenience to consumers. Currently, there are sockets on the market that can display the power consumption of appliances, which is a great improvement over traditional power sockets. However, such sockets can only display the power consumption of appliances when consumers are close to the sockets. If consumers are out, they still cannot understand the power consumption of appliances in a timely manner.

In response to the above problems, this project intends to design a wireless network-controlled power socket, which can be used to access the Internet through mobile phones anytime and anywhere to understand the power consumption of household appliances, and cut off useless appliances or equipment with hidden dangers. And through intelligent analysis, it can identify which appliance the socket is powering. This smart socket can not only meet the user's needs to understand the power consumption of appliances in a timely manner, but also provide a basis for appliance manufacturers to develop low-power consumption solutions.

2> Project Purpose

1. Enable consumers to understand the power consumption of household appliances anytime and anywhere, turn off unnecessary appliances in time, and save electricity.

2. Help electrical appliance manufacturers understand the power consumption of electrical appliances so as to control the energy consumption of electrical appliances.

3> Project Significance

This project is based on wireless interconnected sensor networks. Consumers can use the internet to check the power consumption at home anytime and anywhere, and control the power supply of electrical appliances, greatly reducing unnecessary energy waste. Moreover, this project can provide accurate energy consumption analysis for electrical appliance manufacturers and help reduce electrical appliance energy consumption. In short, this project is of great significance to promoting the Internet of Things and energy conservation and environmental protection.

2.2 Project background, main content, technical level and application scope

1> Research Background

Background 1: On November 3 this year, Premier Wen Jiabao delivered a speech titled "Let Technology Lead China's Sustainable Development", in which he proposed five emerging industries for the first time, including the Internet of Things technology. In the new industry of "Internet of Things", my country's technology research and development level is at the forefront of the world and has a significant influence. At present, it has a complete industrial chain from materials, technology, devices, systems to networks. In the field of global sensor networks, China, together with Germany, the United States and South Korea, has become one of the leading countries in the formulation of international standards.

Background 2: On September 8, 2007, at the 15th APEC Leaders' Meeting, Chinese President Hu Jintao, in a highly responsible attitude towards humanity and the future, solemnly put forward four suggestions on major issues concerning the well-being of the Chinese people, the people of the Asia-Pacific region and even the people of the world, and clearly advocated "developing a low-carbon economy", which attracted worldwide attention. In this important speech, he mentioned "carbon" four times: "developing a low-carbon economy", researching and promoting "low-carbon energy technology", "increasing carbon sinks", and "promoting the development of carbon absorption technology". He also proposed: "Carry out nationwide climate change publicity and education, improve the public's awareness of energy conservation and emission reduction, and let every citizen consciously make efforts to mitigate and adapt to climate change." This shows that the Chinese government pays great attention to environmental protection, no longer simply pursues GDP, abandons the traditional growth model of the 20th century, and directly applies the innovative technologies and mechanisms of the new century to achieve sustainable social development through a low-carbon economic model and a low-carbon lifestyle.

2> Research content

This project came into being in such a background. It studies wireless network-controlled power supply devices and intelligent energy consumption analysis systems. It uses multiple sensors to collect power consumption information in real time and sends it to the server through the Wi-Fi wireless interface. Users can use mobile phones or PCs to browse the web, control the power on and off of household appliances, reduce power consumption of useless appliances, and cut off potentially dangerous appliances to achieve energy saving and safety. The server performs spectrum analysis on the collected power consumption signals and identifies the type of appliances connected to the power supply by judging the spectrum waveform characteristics. The overall structure of the system is shown in Figure 1:

Figure 1 System overall structure diagram

The system mainly consists of four modules: data acquisition module, data processing and control module, data transmission module and user browsing and control module. The system can collect the power parameters of each power supply appliance in real time and transmit the data to the server through the wireless transmission interface. Users can use the designated web page on their mobile phones or PCs to observe the power and spectrum waveform of the appliance, control the on and off of the power supply of the appliance, and determine which appliance is connected to the power supply.

Figure 2 Structure diagram of data acquisition module The data acquisition module mainly collects the power consumption parameters of each power supply through sensors, and transmits the collected data to the data processing module. The structure is shown in Figure 2.

The data processing and control module is mainly used to process the collected data and respond to the operations performed by the user through the web page. The structure diagram is shown in Figure 3.

Figure 3 Data processing and control module structure diagram

The data transmission module mainly transmits the collected data to the designated server through the wireless network so that the data of the web page can be updated in time. The structure is shown in Figure 4.

Figure 4 Data transmission module

The user browsing and control module summarizes, calculates and displays the data on the web page to facilitate user browsing and understand the power consumption of the appliances on each socket. It can also determine which appliance is currently connected to the power supply based on the power consumption spectrum waveform. The structure is shown in Figure 5.

2.3 Basis, advantages and risks for implementing this project

1〉Basics for implementing the project

The Hangzhou Dianzi-Microchip Technology Innovation Incubator Laboratory is a college student innovation laboratory jointly established by Hangzhou Dianzi University and Microchip Corporation of the United States. The students in the incubator all have experience in participating in e-competitions, have strong hands-on skills, excellent academic performance, strict self-discipline and a strong enthusiasm for innovative practice.

(1) Experimental hardware conditions: The Hangzhou Dianzi-Microchip Innovation Incubator Laboratory is equipped with conventional circuit design instruments and equipment such as oscilloscopes, power supplies, signal generators, and PCs, as well as PIC microcontroller development boards, which meet the hardware development requirements of this project.

(2) Experimental software conditions: The Hangzhou Dianzi-Microchip Innovation Incubator Laboratory has circuit design software such as MPLAB, Altium Designer Summer 08, and protel, which provide a sufficient software development environment for the development of this project.

2〉Advantages of implementing this project

This project combines the latest development trends of the electronic information industry and uses the Internet of Things as a basis to achieve energy conservation and environmental protection. It has certain market competitiveness and development potential. Compared with traditional power sockets, it can better meet users' consumption requirements of convenience, speed and energy saving.

2.4 Project Planning Objectives

This project intends to use multiple sensors to collect power consumption parameters in real time, process and transmit the collected signals through MCU, and output the data to the server through Wi-Fi and Ethernet interconnection. Users can monitor the power consumption of electrical appliances in real time by visiting the web page, and can distinguish which appliance is currently powered by the power supply based on the waveform.

Complete the physical design and debugging of the wireless network-controlled power supply device and the intelligent energy consumption analysis system, make the entire system in kind, and provide detailed power supply guidance for consumers and home appliance manufacturers.