The Temperature And Humidity Data Acquisition System Based On Wireless Sensor Network

Wireless sensor network is composed by sensor nodes deployed in the detectionregion within of multiple low cost, small, energy saving, the network system isorganized through wireless communications way, the main purpose is perception,acquisition and processing the perception object of information in the region network,the control center receives the command and exchange information with the sensornodes, with the develop of sensor and wireless communication technology, in industry,agriculture, military, meteorological and other fields, wireless sensor networks havemore and more widely used.Based on the theory of wireless sensor networks, this article proposes a designscheme of temperature and humidity data acquisition system, the system include threeparts: the sensor nodes, the data aggregation node, the PC management node,Theworkflow of the whole system is: first, the sensor nodes collect temperature andhumidity data, the nodes transmit the data to the data aggregation nodes, the dataaggregation node receive data and transfer the data to the PC management nodethrough the serial port, the three nodes work together to complete the temperature andhumidity data acquisition and wireless transmission. The sensor nodes is designed as afocus in the system, its includes: the temperature and humidity data acquisition moduleabout SHT10, control part of MSP430F2132single-chip microcomputer, wirelesscommunication module based on CC1101.We also design the PC managementsoftware, to achieve the temperature and humidity data graphics and digital display, soas to intuitive grasp of the temperature and humidity data change in the network.The system uses various technologies:sensor technology, wireless communicationtechnology and other technologies, after system design, we can through the actual testto verify the reliability of data acquisition and wireless transmission, to achieve thedesired goals, and also establish the foundation in the further study of wireless sensortechnology in the area of data acquisition and monitoring field.