Design And Research Of Detection System For Crop Physiological Parameters Based On WSN

Crop physiological parameters monitoring technology is one of the most important technology in modern agricultural production process, which obtains the growth information via various floras’ Physiological sensors. It is judged on the basis of the growth and nutrition status, meanwhile, the physiological cycle laws of the crop is studied, which is better to be grasped in terms of the crop pest and disease control for technicians, the efficient management of crop production is promoted, the agricultural production capacity is improved all of this, as a great significance for the development of modern agriculture. The detection system for crop physiological parameters, which is based on WSN is in the combination of ZigBee technology, CDMA2000 technology and physiology parameter sensor of the plant technology. Obtained the plant physiology by physiological sensors, then the way of wireless is used to send the information to the host computer simultaneously, which is designed to monitor the WSN plant Physiological system online. To accomplish these tasks, lists the following requirement:(1) The research of the detection system for crop physiological parameters at home and abroad is introduced, and the various defects of existing test system are expounded. Designed a scheme, which is of detection system for crop physiological parameters based on WSN.(2) The characteristics of ZigBee technology, standardized protocol stack and the routing algorithms are introduced. The effective transmission path is proposed, which is based on the combination of the tree shape and AVODjr routing algorithm, then the requirements of large area detection are contented.(3) To select the hardware of system. On the basis of CC2530 chips, which is completed including the design of chip peripheral interface circuit, the design of system power supply module, the design of the power management of sensors module, and the design of embedded gateway module, etc.(4) Completing the node information acquisition and transceiver application programming, which on the basis of Z-Stack protocol Stack. Using LabVIEW to write a display interface on computer, which is equipped with the waveform display, the alarm, the history data query and other functions. The real-time detection of plant physiology information can be achieved.(5) Completing the whole system debugging and testing, including ZigBee communication network testing, system testing and low power Consumption testing, etc.