The Software System Design Of Smart House Based On Wireless Sensor Network

Nowadays, China is encountering a hot tide that waves the construction of "digital city", "digital community "and the development of "low-carbon economy". The applications of 3G technology and WSN (Wireless Sensor Network) also play a very important role in promoting the development of smart house which can effectively achieve "low-carbon economy, green economy." The smart house system based on WSN will effectively solve many problems that ordinary wireless products are facing. According to the actual condition of installation, all sorts of equipments installed by users make up the transmission networks that have been guaranteed for their safty, correctness of the smart system operation and effectiveness of detecting uploaded data and the downstream data transmission controlled by users, achieving the capability of collaborative processing and accurate judgement of multiple equipments.This paper designs a detecting system based on WSN, which makes use of many transmission equipments, combines with the widely-covered detecting means, mobile network and on-spot images.Firstly, the paper introduces the background and current researching progress of wireless sensor network at house and abroad and states the significance of the subject. Secondly, the system configuration and platform of system hardware are introduced, and the whole designing scheme of the detection, transmission and gateway equipments is put forward. Thirdly, the paper focuses on introducing the principle of the whole system protocol design, the structure of topology and frame, the explanation of protocol, the data structure of each network layer and interface functions, determining that system should adopt a network protocol with several layers, competitive data sending mode, four-jump topology structure that can automatically replace frequency points and assign addresses to achieve the effectiveness of detecting uploaded data and the downstream data transmission controlled by users.Fourthly, the paper mainly introduces the gateway software design of application layer in smart house system, including the interactive layer for users, the layer for logic judgement and the layer for physical function block.And the SmartHouseUI. SmartHouseAPP. LibSinkControl. GsmGprsCom. Libcamera. the design of each block and data interface are also mentioned. The design of system software follows the rules that the system should has clarified interface, flexible combination and strong expansibility. Fifthly, the system protocol software has been completely tested and analyzed in three aspects of the function test, the tolerance test and the performance test. and nine interface graphs of the gateway embedded software were given, meantime the system has been jointly debugged from the test of function, performance, reliability and robustness, such as the sensor network function, the topology updating function, the user's query function, the user mobile phone control gateway function, the stable working ability of system, the electromagnetism radiation anti-interference ability of system, the wireless sensor networks anti variability. The results indicate that the system has show high accuracy and reliability in detecting the collection of information, and also has strong application value. Finally, the summary is made with respect to the work done and more favorable ideas and expectations are put forward with respect to the development of the system in future.