The Design And Implementation Of The Parameters Collecting System In The Desert Photovoltaic Greenhouse Environment Based On Wireless Sensor Network

Recently with the wide application of the information technology in the domestic economics and social development, the degree of informatization has been a significant symbol measuring the modern levels of a country and a district. The agriculture in the 21th century is an informationalized agriculture. With the gradual conversion of agricultural production to scale production, it is imperial to improve agricultural informationalized science. Promoting the agriculture through science is the indispensable way to the development of agricultural modernization. Our country has a leading power in agriculture, it makes sense that deepening the application of information technology in the agriculture field improves the level of agricultural production and management in our country, propels the progress of agricultural industrializaition and modernizaiton, speeds up the pace of agricultural informationalized construction. This paper is set in the program of effective use and industrialized demonstration of desert photovoltaic plant greenhouse, researching and devising the application of the desert photovoltaic greenhouse in wireless sensor networks.The paper begins with the informationalized need in the productive process of desert photovoltaic agriculture greenhouse through the technology of wireless sensor networks, using the high-precision sensors to sample the parameters of air humiture, soil humiture, illuminance and so on in the greenhouse, sending these data to the position machine to obtain the real time environmental information in greenhouse, controlling the environmental parameters by adopting certain algorithm.The paper designs a kind of data collecting node based on the Zigbee wireless sensor networks according to the practical demand. The development of this node is based on the CC2530F256 chip, including power module, data collecting module, output control module, RS-485 module, memory module and wireless transmission control module.The power module provides the operating voltages of 3.3V and 5V for the node; data collecting module can connect externally the analog and digital sensors; output control module can connect externally the devices of magnetic valve and so on; RS-485 module can communicate with the position machine through the module which 485 port is converted to the serial port, connect externally the corresponding sensors to collect data; wireless transmission module is the core of the Zigbee node, through it achieving the function of data collecting, the control of the output quantity, building the Zigbee network and wireless transmission and so on.