外文翻译---车载无线传感器网络监测系统设计

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1、江汉大学毕业论文（设计） 外文翻译 原文来源 Wireless sensor network monitoring system design 中文译文 车载无线传感器网络监测系统设计 姓 名 李俊杰 学 号 200807201141 2012 年 1 月 15 日 Wireless sensor network monitoring system design Kang yi-mei,Zhao lei,Hu jiang,Yang en-bo (Study on Beijing University of Aeronautics and Astronautics) Summary: A car

2、 wireless sensor network monitoring system based on IEEE 802.15.4 and ZigBee standards. With universal wireless sensor networks, expansion of the scope of monitoring and monitoring functions for in-car system, car data acquisition and condition monitoring of equipment status and the necessary equipm

3、ent control, topology control, topology query functions. Keywords: wireless sensor networks； monitoring system Introduction In order to satisfy the people to car safety, handling and comfort requirements, vehicle integrated with more and more electronic system .At present, car electronic equipment i

4、s widely used 16 or 32-bit microprocessor control. Creating in-vehicle monitoring system based on IEEE 802.15.4 and ZigBee standard for wireless sensor networks, designed to achieve a more optimized wireless sensor networks, the progressive realization of the network of automotive systems, intellige

5、nt and controllable to provide high-Car System security. System design In this paper, the existing vehicle system, the data transmission mode is extended to the wireless transmission mode, the realization of a star network data acquisition system. And can place each data acquisition node of the acqu

6、ired data is transmitted to the gateway, the gateway through the serial port to upload data to the host computer, in the host data real-time waveform display, and method of database to preserve, for the follow-up data processing. The application of system object is composed of a temperature sensor,

7、pressure sensor, speed sensor, speed sensor, a current sensor, pressure sensor, sensor subsystem. The purpose of this design is to use a monitoring host machine end to the detection of multiple target environment, taking into account the access data throughput and software system complexity, using t

8、ime-division multiplexing way, one by one on the net terminal collecting point of control and data acquisition. As shown in Figure 1, the system is divided into 3 parts: Vehicle Monitoring Center, gateway and mobile sensor node. Gateway is the whole vehicle system core, and all vehicular sensor node

9、 communication. Vehicle monitoring center to the gateway sends a control command by the gateway, the control command is converted to an RF signal and sent to the vehicle sensor node. When the vehicle sensor nodes to transmit data, gateway into the data reception state, and upload data to the monitor

10、ing center for further processing. In addition, car between sensor nodes cannot communicate with each other. The monitoring center of the monitoring software and gateway in RS232standard interface for communication. Vehicle sensor node life cycle is active and dormant periods. Nodes in the active ph

11、ase of the completion of data acquisition, data sent to the gateway, receiving and executing gateway command； in the dormant period off the wireless RF module in order to save energy, until the next active period. System through this mechanism of dormancy to reduce energy consumption, extend the tim

12、e span of the system as a whole. The system used PC as the control center, PC machine monitoring software in VB development environment, is a dialog based application software. In order to improve the communication module of the intelligent level, in the design, its function is not limited to the re

13、al-time data display, all of the data collection by the monitoring software by sending a request signal to the trigger. Considering the original data for subsequent processing and in-depth analysis of the vehicle system, can accurately judge, software has also added data preservation of the document

14、 and data file display function. Generally speaking, the whole network are controlled by the host monitoring software, the working process of every node of the network is the need of human participation. 2 hardware system design 2.1application chip introduction MC13192with IEEE802.15.4 standard, the

15、 operating frequency is2.405 2.480 GHz, data transmission rate of 250kbps, using 0-QPSK debugging mode. This feature-rich two-way 2.4GHz transceiver with a data modem which can be in the ZigBee technology application. It also has an optimized digital core, helps to reduce the MCU processing power, s

16、horten the cycle of execution. The main control MCU choose HCS08series of low power, high performance microprocessor MC9S08GB60. The processor has a 60Application of KB programmable Flash 、 4 KB RAM,10 ADC,8 channel2 asynchronous serial communication interface ( SCI ),1 synchronous serial interface

17、( SPI ) and I2C bus module, can fully meet the requirement of vehicle gateway and node processor requirements. 2.2 MCl3192and MC9S08GB60hardware connection MC13192and MC9S08GB60 hardware connection diagram as shown in figure 2. The MC13192control and data transmission on 4 wire serial peripheral int

18、erface ( SPI ) is completed, the4interface signals were MOS-I, MISO, SPICLK. The main control MCU through the control signal exiting sleep mode or hibernation mode, through to reset the transceiver, through the RXTXEN to control the data sending and receiving, or force the transceiver into idle mode

19、. The sensor output analog signal through MCU 8 Channel10 bit ADC conversion input to MCU. MCU via SPI MC13192to read and write operation, and the sensor to collect the signal processed by MC13192launch out. The MC13192 interrupt IRQ interrupt register through the pins and to judge the type of interrupt. MC908GB60 pin to control the MC13192 into a different mode of operation .Control of the sensor signal from the MC13192receiving antenna in, transmitted via SPI to MCU, after MCU judgment after processing