Design Of The Indoor Environment Monitoring System Based On The Zigbee Sensor Network

With the rapid development of modern information technology, peopledemands for the environment of life is higher and higher.Everyday people spendmost of their time in the house, whether life, study or work, all pollutants in thehouse may be absorbed in people. And now people are in order to save the costof materials, reduce material, greatly add to the airtight degree in modernbuildings, make a lot of pollutants in the house can not to ruled out timely, moreaccelerated the indoor air quality deterioration, a serious threat to people’sphysical health. Visible indoor environment quality and human health has thevery big relations, so indoor environment monitoring is very important.This paper, the micro controller is MSP430microcontroller, the main chipof Rf modules is CC2420. the sensors are include the temperature sensorsDS18B20、 humidity sensor HS1101and dust sensor DSM501, andtransplantated the Zigbee2006standard protocol stack of TI company, the editingprogram running on the protocol stack, and collect the temperature, humidity anddirt indoor environment in time, realization of the indoor environmentmonitoring，let people can work and life in a comfortable indoor environment.This design is mainly for network research and hardware and softwaredesign.The study of the network mainly included the topology structure andprotocol stack, and the results analysis of the network test. Hardware designmainly included the micro processing module, the data acquisition module andwireless communication module design. Software design mainly included thesystem main program design, the interrupt and the initial program design, dataacquisition program design and wireless communication program design.Finally by the experiment proved the correctness and feasibility of thedesign, and through the collection of data shows the design achieved the indoor environmental monitoring successful.