Study And Implementation Of IOT Home Based On Android

With the development and progress of science and technology, the demand for improving the quality of life is becoming more intense. Home as an essential part of everyday life, has gradually become the focus of people. The World Internet Conference, millet technology founder lei jun entitled "smart Home to lead the future of the world" speech, A new model is proposed to expand around the millet phone, the entire ecological chain binding intelligent hardware and software and the Internet together. The final target of IOT Home is to realize the life digitization, data modeling, model commercialization in the future. Today IOT technology, computer technology, communication technology and sensor technology for IOT Home development lay a solid foundation.In this paper, on the basis of predecessors’ research, according to the China Electronic Panda Group IOT Home high-tech project requirements, study and implement a IOT Home system based on android. The system architecture consists of three parts client, intelligent gateway unit, a wireless sensing network unit. The client application achieve to control of IOT Home system through TCP/IP protocol. The intelligent gateway unit is the core part of Home network, it mainly realizes the network access, remote alarm and wireless connectivity sensing network unit, and so on. Wireless sensor networks unit mainly to collect information and data through the serial port to communicate with the intelligent gateway unit. When in a state of emergency, intelligent gateway unit sends the information to the client to realize the role of remote alarm by GSM module.According to the demand of wireless IOT Home system’ software and hardware as well as the comparison and analysis of mainstream communication methods, This paper uses Cortex-A8 processor as the hardware platform, the android system as the software platform, the zigbee technology as a means of wireless communication. This system chooses the main chip of TI’s AM335 x with expansion circuit as a gateway, CC2530 series zigbee module to establish wireless sensing network. Between the client and gateway, this paper mainly discusses the Android 4.2 system kernel’ transplant and cutting process in the gateway hardware platform, and achieves writing and debugging programs at the gateway server. Aiming at the safety problem of data communication,this paper uses the principle of the connection, session, handshake protocol, gives approach to the hierarchical encryption technology and the way to come true it when the connection and data transmission between the client and gateway, which both improve security and ensure the high efficiency. Between the gateway and wireless sensor networks, the corresponding circuit modules are designed based on CC2530 development board, including the RGB lamp control circuit, a motor switch control circuit, intelligent socket circuit etc. This paper re-develop on the basis of the Z-stack protocol stack, finish writing the mobile terminal applications at the same time.In this paper, the IOT Home system mainly realizes to control to the temperature and humidity environment perception, the kitchen smoke alarm, the Home appliance control, the RGB multi-colored lights, the electrical curtain intelligently. This system which uses encryption method makes sure it safe and reliable effectively, and brings convenience for users.