Based On ZIGBEE Wireless Soil Of The Agreement Humidity And Temperature Monitoring System Of Research

This paper introduces a kind of wireless sensor terminal by nodes, gateway center node, PC control terminals in the composition of the soil temperature and humidity wireless more monitoring system design, expounds the system function, composition and the main components design method. The experiment shows that the system has a low power consumption, low cost, precision programmable, remote control, etc. Put forward the wireless sensor network precision agriculture in the application and development prospect.ZigBee technology is a kind of close, low complexity, low power consumption, low data rate, low costs of the two-way wireless communication technology, mainly suitable for automatic control and remote control field. Into all sorts of equipment, and the geographical location support functions. Use ZigBee technology can be made of a number of wireless terminal node made a great wireless data transmission system, each ZigBee node is equivalent to mobile network a base station, it can direct the test data acquisition and monitoring, and through the wireless router with the transfer of the way to send in the network of other nodes, and make fast data cover the entire network.Based on wireless sensor network soil temperature, humidity measurement system includes three main functions:a. Farmland soil humidity, temperature, and time for information. The sensor node constitute a wireless sensor network, receiving sensor getting information, transfer farmland soil humidity and humidity information, finally to gateway center node information collection, the gateway center node sends messages to the computer through a serial port. Three by computer analyzes the data and feedback control.Node hardware consists of three parts:the data transceiver unit, sensor to monitor acquisition cell and the backplane unit. Data transceiver unit CC2430chip and2.4GHz circuit to form. Responsible for the sensors to collect the data of nodes to wireless transmission, through the many jump to gateway center eventually routing node. Floor module mainly used to the system to provide reliable and stable power and sensor module and superior and module of serial communication. Sensors monitor acquisition cell is mainly responsible for the integration of the sensors, such as integrated temperature sensor, humidity sensors. Through the modular function design, the acquisition task and part of data processing in tasks to c51processing, data communication and network transmission task to cc2430to handle, the data processing and analysis to the PC to deal with. This would ensure the efficient and stable system.PC data processing and control software development, using object oriented development tools vc++。The system software is responsible for the final deal with data analysis and feedback control. The following are divided into six parts function:test parameters Settings; And a machine under the communication link; The image data, curve analysis; The data of the numerical analysis; A single step storage function;The monitoring system, realize the soil humidity and temperature of the effective monitoring. The author thinks that has the following several aspects of innovation:1. Really realize on software design the low consumption. Timing can do sleep and the integration of deep sleep.2. The hardware, a distributed processing. Using c51and cc2430SCM, and two single chip can handle different division of their task, and can be good communication.3. Use PC software for multi-function data analysis and processing, such as data visualization analysis and numerical analysis.