Study On The System Of Greenhouse Environment Measurement Based On Zigbee Technology

At present, the greenhouse planting is applied more and more widely as an important way to raise the efficiency of agricultural production. A large amount of electronic detecting devices are constructed in greenhouses in order to achieve the purpose of testing greenhouse environmental parameters, causing that the greenhouse investment cost is high, the installation and maintenance is difficult. A burgeoning short-range wireless communication technology——ZigBee is introduced into the inspection system in this paper. The greenhouse environmental detecting system is designed based on ZigBee technology, including the gateway, routing nodes and sensor node of hardware and software designs.The advantages and disadvantages of the various current greenhouse environmental detecting the treatment schemes are contrasted carefully through the deep research of the greenhouse environmental detecting factors in this paper. The greenhouse environmental detecting system is researched based on CC2430single-chip microcomputer and ZigBee wireless communication network combining with the special advantage of CC2430single-chip microcomputer in control and ZigBee wireless communication network in communication. The achievement of the research is proposed mainly in the following aspects:1. The characteristic and signal processing theory of the sensor is studied by the research and analysis on the theoretical basis of the current greenhouse environmental detecting device.2., The processing, amplification, A/D conversion and related data processing of the acquired signal are at the same time through CC2430SCM by multi-channel signal collection.3. ZigBee network is composed of Network nodes, routing nodes and the gateway, realizing the increase or the decrease of the network nodes randomly and the wireless communication at short range between the internal nodes of the network.4. The application of ZigBee protocol stack in the construction of the communication process is analyzed.5. The user interface of several environmental detecting factors is designed in the upper machine by the virtual instrument LabVIEW8.6. The measured value and the corresponding time of the environment detecting factors is displayed real-time and observation and analysis of the experiment data are convenient.