dc.description.abstract | A large amount of development and utilization of natural environment by the mankind, cause the Earth’’s climate change and bring extreme weather phenomena. With the 2.4GHz wireless communication and sensor technology advances, we can apply WSN technology to monitor environment and climate, avoid or minimize damage and loss caused by disaster for us. Applications of WSN need a lot of embedded technology, such as the choice of processor, the drivers of various types of sensors, and software implementation of WSN protocol. Besides, it also needs to integrate domain-dependent applications of skills (know-how). For example, a microclimate monitoring WSN requires the complementary background knowledge on the geography or and agriculture. Therefore, the development and deployment of WSN always spends a lot of manpower, time and cost. This study aims at micro climate monitoring, designs a WSN embedded development and deployment platform (Embedded Development and Deployment Platform, ED2P). It includes sensor nodes that are installed GRAFCET virtual machine, gateways, WSN middleware, communications software and an embedded Web server. Based on this platform, developers use GRAFCET graphical language to describe the discrete-event, behavior and function of wireless sensor network applications first. Then the coded GRAFCET model is transformed it into a coding table and send it to gateway by communications software, gateway resends it to the destination sensor nodes. The GRAFCET virtual machine is implemented on the sensor nodes which decode GRAFCET coding table and run the application. This process realizes the remote development and real-time deployment of the WSN application. Finally, we develop two WSN applications: the microclimate monitoring of greenhouse and the slope sliding supervision, to demonstrate the functionalities and performance of proposed platform.
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