Design Of Wireless Intelligent Greenhouse Monitoring System Based On DSP And ZigBee

Greenhouse is a better performance Oxfam for Environmental Protection which is developed in the northern region recently years. The purpose of the intelligent control is to monitor the temperature, humidity and other environmental factors in the greenhouse to control the corresponding devices to supply the crop with the best environment for growth. If we can realize the automatic control in the greenhouse, we can implement the precise control of the environment, so as to reduce the labor intensity of the producers and improve the labor productivity.Develop the Wireless Intelligent Greenhouse Monitoring System Based on DSP and ZigBee in the text is aim at the need of the monitoring and the control of the agricultural environment. The system uses many sensor modules integrated with temperature and humidity sensors to distributed collect the environment parameters in the greenhouse, and uses the ZigBee wireless communicate technology to sent the collected data to the DSP control centre. According to the collected data, the DSP use multi-point signal fusion technology and the fuzzy control algorithms to conduct the greenhouse with a fuzzy control and achieve the purpose of the intelligent control.The main work and the results in the text are summarized as follow:(1) After study the development of the greenhouse control system at home and abroad deeply, according to the development of modern wireless technology, the text supplies a new type of greenhouse control system design based on wireless sensor networks.(2) Complete the structures of the hardware platform with the MSP430 and CC2420 ZigBee wireless chip. And Complete the transplantation of the ZigBee wireless communication protocol-star topology protocol stack in the MSP430 . Use the sensor module including temperature sensor AD590 and humidity sensor HS1101 to acquiste the environment parameters of the greenhouse and use the network to complete the transmission of data.(3) The system acquistes environment parameters in the different position in the greenhouse, so the acquisition data is to be processed with the information integration and fuzzy control algorithm. The text give the simulation of the algorithm, the results can meet the basic requirements of the system.(4) Complete the design of DSP Monitoring Center, including the communication of the DSP and the ZigBee node, the design of the HCI module and the self-loading system.(5) Complete the system practical tests, results are basically meet the initial design requirements, and achieve good results.The text is divided into seven chapters, it elaborate in detail the system's theories, principles and the process of the realization.Chapter 1 is the introduction. It discusses the background and the significance of the research and it also introduce the current development status at home and abroad.Chapter 2 studies the ZigBee wireless communication technology. It elaborates in detail the ZigBee technology and the establishment of the ZigBee network.Chapter 3 discusses the information fusion and the fuzzy control algorithms. It elaborates the multi-sensor fusion algorithms based on support and the fuzzy control algorithms. In the end, it gives the simulation result for the system.Chapter 4 introduces the design of the system's hardware. It supplies the circuit of the ZigBee wireless communication module and the DSP monitoring centre.Chapter 5 introduces the design of the system's software. It includes the introduction of the ZigBee protocol stack's software processes and the procedure of the DSP's applicated progress and the fuzzy control algorithm.Chapter 6 supplies the system's demonstration and test result. It demonstrates the function of the system.Chapter 7 is the conclusion. It summarize the work of the text, and it proposes the next step realization problems needing to be studied.