Application of Embedded Technology in Smart Home

The history and current status of smart home are described and the basic idea of intelligent control is introduced .And the application of embedded system in intelligent control system is also discussed. Using embedded system, various network information, multiplex automatic control function, as well as energy saving and environmental protection can be integrated into one platform of home intelligent information administration and automatic monitoring. As a result, efficient, comfortable, safe and protected living environment can be achieved. KEYWORD: Smart Home; Intelligent Control; Embedded System 4th International Conference on Mechanical Materials and Manufacturing Engineering (MMME 2016) © 2016. The authors Published by Atlantis Press 196 written to the database, and feedback to the user to send control requests. Control household appliances through telephone set with a password function, only after the password is more successful to enter the control module, so that the operation is more secure. 3 SOLUTION OF HOME INTELLIGENT CONTROL SYSTEM Intelligent home control system has three solutions, which is based on PC, microcontroller and embedded systems of three kinds of intelligent home control system solutions respectively represent the technical features of the smart home industry in China in different periods. There three solutions: one is Smart home based on PC machine architecture, one is based on single chip architecture system, and one is Smart home based on Embedded System 4 THE APPLICATION OF EMBEDDED TECHNOLOGY IN THE HOME INTELLIGENT CONTROL SYSTEM Embedded system generally refers to non PC system, in accordance with the requirements of history, nature, universality, embedded system should be defined as: "embedded into the object system of the special computer system". "Embedded", "special" and "computer system" are the three basic elements of embedded system. Object system is the embedded system of embedded system. Generally, embedded system is used as the center, to computer technology as the foundation and hardware and software can be cut, it is suitable for in application system and strict specialized computer system to function, reliability, cost, volume, power consumption. The embedded system mainly consists of two parts, hardware and software, which is used to control, monitor or manage other devices. Hardware, including processor, memory, external devices, and IO control port, graphics controller, etc.. The software part includes the operating system software (OS) and the application program which can realize real-time and multi task operation. Sometimes designers combine these two software together. The application controls the operation and behavior of the system, and the operating system controls the interaction between the application program and the hardware. The core of embedded system is embedded microprocessor. Embedded microprocessor generally has the following 4 characteristics: (1) Have very strong support ability to multitask, can perform multiple tasks and short interrupt response time. (2) Having a storage area protection function is very strong. This is because the embedded system software architecture is modular, and in order to avoid errors in interactions between software modules, need to design a storage area protection function is powerful, but also conducive to the diagnostic software. (3) Scalable processor architecture. (4) Embedded microprocessors have to be very low power consumption, and rely on battery powered for portable wireless and mobile computing and communication devices in the embedded system is even more so, such as the need for power consumption is only mW or even W level. In addition, when you understand the definition of embedded systems, do not be confused with embedded devices. Embedded equipment refers to the internal embedded system products and equipment, for example, household appliances, instrumentation, industrial robots, mobile phone unit, PDA, embedded MCU Etc. The birth and development of the embedded technology, promote the coming of the post PC era, embedded system in the field of communication products, household appliances, medical equipment, automobile manufacturing, aerospace and other infinite use of space has made it become to promote the development of the information industry, accelerate the transformation of traditional industries most practical high technology. Embedded technology in the application of home intelligent control system, the system of voice and image processing ability greatly enhanced. According to the real-time operating system customization system can not only maximize the hardware investment, but also to avoid the waste caused by too large for the system. Because the embedded system generally only a core processing chip, so the system structure more clear and simple. The system software uses the hierarchical design, not only has the advantages of convenient maintenance and to upgrade the system, but also greatly improve the utilization rate of the code, shorten the development cycle. In addition, the embedded technology is produced and developed with Internet, so it has more excellent network performance, can increase the network application. The embedded intelligent home control system can be set up and control the following functions: (1) Visual intercom. The installation of video intercom system in the hall, library etc.. Visitors must be subject to the consent of the tenants, the household remote control to open the door to enter the unit security door. Unit door host can also be connected through the network and management center host, in the future, visitors enter the signal transmitted to the host at the same time, to facilitate the duty staff to grasp the situation of visitors. (2) Alarm. Can be divided into anti-theft alarm and alarm, closed-circuit monitoring system and emergency call and alarm etc.. Burglar alarm. The installation of anti-theft probe on the wall or ceiling at the living room, hallway and staircase. The interior used in the windows and doors etc.. Applied to outdoor walls, balcony window, etc., if one can de-