Temperature And Humidity Sensing System Based On Cc2420 Wireless Sensor Network Research

Wireless sensor network is a kind of communication centered, non-infrastructure wireless networks. People using wireless sensor network can achieve information fast, large-scale, automated collection and transmission. As semiconductor technology, micro system technology, communication technology, computer technology, the rapid development of the late 1990s in the U.S. in the modern sense of the wireless sensor network technology. Since then, the technology is relevant for the important institutions will change the world assessed the importance of new technologies, research work carried out in all developed countries are vigorous up. Can be expected, the wireless sensor network development and wide application, will people's social life and a tremendous impact on industry changes and a huge push.This paper introduces wireless sensor network node design and implementation. It is combined with the data acquisition unit, processor unit, the wireless communication unit and power supply management unit. Data acquisition unit with temperature and humidity sensors shit11, processing cell Atmega128, wireless communication unit is cc2420. Select the model of this module not only meet the background while the application of greenhouse shape of small, highly integrated, low power consumption and supports sleep mode, run fast enough GPIO and communication interfaces, scalable, high-capacity storage and low cost with security guarantees. Finally, the completion of the node based on the hardware design of each functional module driver programming, and to run through.The characteristics and significance of this system is through the use of temperature and humidity sensors SHT11, light sensor TSL2550, the corresponding data collection environment, through ATmega128Lcpu chip data processing, the CC2420 RF chip nodes wireless short-range data communications. Make it more suitable for the existing hardware platform, so that it can better ensure the success rate of inter-node communication and accuracy.