Abstract: Research and design of a smart home remote monitoring system based on ZigBee technology for embedded web. Wireless networking of home devices through Zigbee, transmitting information and digital videos of home devices to the Internet network, and setting up a “wireless video gateway” web server on the Internet for external access; Realize real-time display of home information such as temperature and subsequent utilization and control; At the same time, the digital video information transmitted from various sources will be collected for subsequent processing and recognition. Such as intrusion detection, facial detection, and recognition.
Smart home, also known as smart home, is commonly referred to as Smart Home in foreign countries. Similar meanings to smart home include Home Automation, Electronic Home, E-home, Digital Family, Home Net/Networks for Home, NetworkHome, Intelligent Home/Building, etc.
The smart home system utilizes advanced computer technology, network communication technology, IS420YAICS1Band comprehensive wiring technology to organically combine various subsystems related to home life. Through coordinated management, it makes home life more comfortable and safe. Smart homes can provide comprehensive information exchange functions, help families maintain smooth information exchange with the outside world, optimize people’s lifestyles, enhance the safety of home life, and even save funds for various energy costs.
1 Project Overview
1.1 Overview of Smart Home Development
Smart home is the use of advanced computer technology, embedded systems, and network communication technology to connect various devices in the home (such as lighting systems, environmental control, security systems, and network appliances) through home networks. Since the emergence of real smart buildings in the United States in 1984, there has been nearly 30 years of research history abroad, while research in this area in China is relatively late. It was gradually applied to the high-end market in 2003, and the standards are not unified. For example, Hisense, Haier, Tsinghua University, and others operate independently. Due to the unique charm of safety, convenience, efficiency, speed, intelligence, and personalization of smart home systems, the development and construction of smart homes have become an inevitable trend in the development of technology in the 21st century. With the increasing demand for energy and environment globally, the advantages of smart homes in energy conservation are very obvious, so they have a very broad market prospect.
1.2 Main parameters of the development board
The development board used in this project is the Real6410 development board, which uses Samsung’s ARM11 core processor S3C6410. The development board also integrates 123 MB of DDR memory and 1 GB of NandFlash, while reserving 256 kNorFlash. The motherboard also provides two four wire RS-232 serial ports, a USBHOST interface, a 10 M/100 M adaptive Ethernet interface, and other peripherals.
2 Main research content
At present, the design of various smart IS420YAICS1B systems is mainly based on wired technology, but wired technology is not suitable for the popularization of smart homes, and the disadvantages of difficult installation and expensive prices limit its development. Therefore, the application of wireless communication technology in smart homes will inevitably become a future development trend and trend.
This project utilizes Zigbee for wireless networking of home devices, transmitting their information and digital videos to the Internet network. A “wireless video gateway” web server is set up on the Internet for external access; Real time display of home information such as temperature and subsequent utilization control; Simultaneously, collect digital videos transmitted from various sources for subsequent processing and recognition.
3. Overall Design Plan of the Project
3.1 Principles of overall system scheme design
This project mainly completes the monitoring of environmental variables and video signals in smart homes. The entire system includes an ARM11 development board, a 16 bit microcontroller, and 2 USB CMOS cameras; A PC (running the client’s monitoring program) can be divided into video acquisition module, data compression module, encoding module, and video monitoring PC according to its different functions. The acquisition module includes a USB camera; The compression encoding of data is completed by the ARM11 processor; The video monitoring PC completes the functions of the video client; The PC completes program development, debugging, and other tasks for the development system. Figure 1 shows the composition and structure of the system.