| 摘要(英) |
Applications of wireless sensor network are usually customized for a specific requirement, it always take a long time to develop a prototype. Besides, once the developers need to update the program in sensor node, the only way they can chose is by physical wire, such as USB, JTAG and so on. Hence, it will cost more than we expected, whether human resource cost or time cost. In this paper, we proposed a design method based on GRAFCET. Developer could map out software behavior by GRAFCET graphical language, and communicate with sensors, actuators and gateway via middleware that provided by wireless sensor network middle tier. At the last, transmit the coding table of applications to the sensor nodes through internet. We design the GRAFCET virtual machine that install in sensor nodes to receive the coding table and interpret to the binary code of the target processor, update code memory and control the program process. In the experiment, we use the actual wireless sensor network application to verify our system, proof the feasibility the method we proposed.
With our design, developer could develop prototypes of wireless sensor network in a quick way, and update the program in sensor node through the Internet, cost down the develop time and the staff cost.
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| 參考文獻 |
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[13] STM32WCB: http://www.st.com/internet/mcu/product/245381.jsp
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