外文翻译---车载无线传感器网络监测系统设计(编辑修改稿)

外文翻译---车载无线传感器网络监测系统设计(编辑修改稿)内容摘要：

ergy consumption of the sensor nodes. It was found, ZigBee module and the energy consumption is much larger than the central processor and the energy consumption of sensor module. Therefore, the sensor node design of application software to try to make each module in a dormant state, and minimizing wakes ZigBee module number. Therefore, the sensor nodes, power of each functional module initialization is pleted, and joined the work, enter the Sleep state, the central processor cycles to be timed wakeup to send data to the gateway, and receives the gateway mand. Sensor nodes of the workflow are shown in Figure 4. The gateway node software design Gateway downward management sensor node, to plete and PC monitoring center of interaction, the need for a plicated task management and scheduling, therefore, based on the uC / OS kernel of embedded operating system to manage the gateway, the application task efficiently provide good software support. According to gateway function demand, the μC / OSII, SMAC protocol organic union, form a work operating environment, the user can conveniently on the basis of its development and application. Based on μC / OSII extended gateway software platform structure is shown in figure 5. Based on μC / OSII operating system, were used to build the system task SYS_task ( ), START_task ( SMAC star work task ), gateway and a sensor node interaction task COMM_task ( ), PC monitoring center port monitoring mission ( SER_task ) applications such as a series of tasks, thus realizing the gateway software application function. The host monitoring software design This system is the ultimate goal of the collected vehicle sensor data is transmitted in realtime to the host, and the host of display and preservation. Display is designed to get onboard sensor node monitoring environment of the initial situation, preservation is designed as an indepth analysis of the data samples. In addition, the system as a whole the main prosecution and the data acquisition request initiator, need to be able to send the data request signal in accordance with the requirements of. According to the above requirements, VB environment in the development of a dialog based application. This application includes a 4 module: ① data waveform display module. The role of the module is a form of waveform data of the node to be displayed in realtime, it is the use of MS Chart and Timer control. ② topology display module. When the user wants to know the wireless sensor work topology construction situation, you can view the topological information, understanding of work nodes join and loss. The historical data display module. In vehicle work system to a certain period of the past, may need a certain period of time the original data for subsequent processing and indepth analysis, so that the vehicle system of accurate judgement. With the aid of historical data display module, the control center from the gateway of the data obtained, according to the different attributes of the nodes, address and time are saved to the database of the corresponding field, and may be will displayed by waveform of historical data, for the user analysis. The controlling module :In vehicle during system operation may be concerned about a vehicle sensor value node, or to a sensor threshold settings, for monitoring environmental exceptions can be promptly reported to the system. These are available through the control module of the system are corresponding to the set, the control module can also be on the system in which one does not need to delete the node. In short, through the host monitoring software users can visually and many aspects of general wireless sensor work systems to understand and use. 4 test and verification testing Testing equipment:4 MCl3192ZigBee chip node,1as a gateway node, the remaining 3as sensor nodes. Test method: the gateway node power,4 LED and light, scanning channel if the search to the idle channel, the LED goes out and join the free channel for. The sensor node power,4 LED scanning in the channel at the same time, polling light. LED1 flashes once when the sensor nodes receive the allocation address of the gateway node,。