Research And Achieve Of The Home Environment Real-time Monitoring Based On Zig Bee

At present, the problem of serious environmental pollution makes people become more and more concern about comfortable home environment. The traditional home environment monitoring system has poor ductility and cockamamie wiring distribution, which not only affect the indoor appearance but also corrode or aging the circuit. Aiming at these disadvantages, the thesis combines the ZigBee wireless sensor network with the data acquisition module, and gives a practical design scheme of home environment monitoring system.The thesis firstly introduces the research background of home environment monitoring, and puts forward the technology of wireless sensor network, and its current situation of the development, the typical technology. In view of the current household environment characteristics and its development trend, the thesis not only analyzes the application requirements of the system, but also designs the overall structure of the system. Afterwards it raises a concrete implementation plan of household environment monitoring system based on ZigBee, and the three modules of the system are analyzed and designed on soft hardware. The system builds a ZigBee wireless sensor network inside the house and distributes every data collection module to the terminal node of the wireless sensor network. In this way, it carries out multipoint and repeated information collection of the home environment and then sends it to the coordinator node. The data collected will be processed and transformed to be the corresponding function and then be transmitted and communicated through the serial port between the coordinator and the host controller. Finally, it will be displayed on the touch screen through the QT user interface designed by the host controller. By manipulating the touch screen, we can monitor the concentration of the indoor noxious gas, air quality and indoor temperature and humidity. Meanwhile, we can ensure the normal work of the sensor and then improve the environment inside the house by conducting an on-line monitoring for each acquisition module.In addition, aiming at the system designed, the thesis gives more examples of acquisition and test. The result showed that the system designed in this can not only collect information of sensors to get the real-time status of home environment, but work steadily. The system has easy operation of QT interface, the home environment of current state can be adjusted according to the information of interface, and the results not only meet the demand of system, but have practicability and stability.