Key Technologies Of Wireless Communication Systems For Home Networking

Family Things are actually the sensor, processor and wireless communication modules and other devices embedded into the national grid, bridges, intelligent construction, household appliances and other articles so that they communicate with each other to form physical objects capable of network communications. This paper analyzes the development status of wireless home networking communication system, in terms of things widely used wireless networking technology, we proposed benefits of wireless sensor networks, and as for the deficiencies of the existing wireless sensor networks that exist:Unable to detect in real time whether the peripheral nodes in the network work state, and to the existing control protocols are mostly foreign companies after the package, and can not fully meet the actual application requirements, modify inconvenient issues such perfection. Analysis of the family radio communication system of things its own characteristics, special networking needs from the family was starting to study and implement the family was family-oriented applications with low power consumption, reliable routing, real-time communication, scalability, and other characteristics of networked wireless communication system.Family Things wireless communication system not only has the typical self-organizing sensor networks, multi-hop, low power consumption and other characteristics, also faces multipath interference due to the various buildings and blocking generated transmission conflict. Combined with the special needs of wireless smart home applications in the traditional wireless sensor networks based on the study include the following three main aspects:1, networking mode:Since determine the choice for the design of wireless sensor network system, we must first determine to be used networking mode. Frequency and time delay information collection requirements, etc., determine the networks.2. Access Control:Media Access Control (MAC) and link control to solve wireless network problems prevailing conflict and loss, according to the network data flow control state near the node, as well as the network channel access method and sequence of all nodes, reach efficient use of network capacity, reduce energy consumption purposes. In this paper, based on the hybrid MAC technology.3, route design:the control section of the monitoring system, the need to accurately control the information reaches the destination node, for which the use of hop multipath routing algorithms, and point the message confirmation guarantee reliability of data transmission. The home communications system with low power consumption, power adjustable, reliable communication, scalability and so on. Implements dormancy mechanism, can greatly improve the battery life. Through reliable routing and channel selection mechanism to ensure the reliability of communication. Also reasonable hardware design, enhanced transmission efficiency of the radio transceiver, also improves the reliability of the communication control. The project developed a communication module wide range of applications, it can be used in a variety of wireless control, data transmission, real-time monitoring applications, such as home control systems, positioning systems, temperature control system etc. It has practical significance.