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A Movable Platform for Field Information Acquisition

机译：用于现场信息采集的可移动平台

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The main task of this study is to develop a movable platform for field information acquisition and test the LQI (link quality index) between nodes at different heights and different distances to find a relatively better link quality and work stabilityfor wireless communication. The system was constructed by an integrated PDA and some sensor nodes. The integrated PDA can be divided into a RFID reader, a ZigBee coordinator, and the main part of PDA. The integrated PDA as the ZigBee coordinator was designed to establish the wireless networks while the sensor nodes as the ZigBee routers were used to join the networks and gather the field information. The communication between PDA and the sensor nodes were bi-directional. The JN5139 wireless MCU was chosen in the design of the circuits for coordinator and routers. The software included a network communication program of wireless sensor networks, sensor acquisition procedure, and the PDA interface program. Some experiments were conducted for the performance test of the whole system in the field, sensors indoor, and wireless communication outside. The test of the whole system demonstrates that the PDA could gather the information sent from the sensor notes. The test ofsensors in the refrigerator shows that the sensor can read out 0°C degree. The test of wireless communication outside could conduct us the deployment of nodes.
机译：本研究的主要任务是开发一个用于现场信息获取的可移动平台，并测试不同高度的节点之间的LQI（链路质量指数），以及不同距离，以找到无线通信的相对更好的链路质量和工作稳定性。该系统由集成的PDA和一些传感器节点构成。集成的PDA可以分为RFID读取器，ZigBee协调员和PDA的主要部分。作为ZigBee协调器的集成PDA旨在建立无线网络，而传感器节点作为ZigBee路由器用于加入网络并收集现场信息。 PDA和传感器节点之间的通信是双向的。选择JN5139无线MCU，用于协调器和路由器的电路设计中。该软件包括无线传感器网络，传感器采集过程和PDA接口程序的网络通信程序。进行了一些实验，用于领域的整个系统的性能测试，室内传感器和外部无线通信。整个系统的测试表明PDA可以收集传感器笔记发送的信息。冰箱中的置型传感器的测试表明，传感器可以读出0°C度。外部无线通信的测试可以对我们进行节点的部署。

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