Design and Implementation of Router Based on Wireless Sensor

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1、Design and Implementation of Router Based on Wireless Sensor Abstract： This paper design and realize a uplink single hop and multi hop data transmission using the Zigbee technical， and the system can realize the downlink overall and single equipment control network. The Wireless sensor network syste

2、m is mainly used in data transmission and control. The network is debugged and tested. The final network operation and the test results show that the overall network running in good condition， the design realizes all functions and achieve the desired results. 下载论文网Keywords： Wireless sensor network；

3、Zigbee； CC2430； coordinator； router； sensor0 IntroductionsWith the development of the world of information technology， wireless communication technology has been paid more and more attention. Wireless sensor networks as a branch of wireless communication technology， that has the aspects in the field

4、 of wireless communications has been widely applied. But the wireless sensor network rise late， many technology and its applications are still under development and improvement， it will be a long process of development.At present， the fast processing and signal the direction of development of wirele

5、ss sensor networks are mainly concentrated in the energy saving， easy to send and receive information such as 1. Wireless sensor network protocol stack corresponding will also be concise， accessible place increase， interactive response to avoid simplification， signaling， concise and system cost savi

6、ngs and other aspects of the development of 2. It is due to the world of wireless sensor networks， these requirements， Zigbee technology will emerge as the times require. Zigbee technical standards in line with the development direction of the wireless sensor networks， the designed for wireless sens

7、or network applications， will gradually become the preferred technology 3 wireless sensor network.The hardware design and software programming in the design and build a applied to the data transmission and control of wireless sensor network and. Three different types of equipment， mainly includes th

8、e network， namely the coordinator， routers and sensor， the sensor also includes a variety of types of sensor. The network is composed of the three types of equipment to form a multi hop Zigbee tree wireless sensor networks. The main network realization multistage transmission of data， interactive ne

9、twork and host computer， and the computer on the network end device control functions1 The system structure of Wireless Sensor Networks Wireless sensor network consists of sensor nodes， sink node and task management node. The sensor nodes are randomly deployed in large numbers within or near the mon

10、itoring area， the self-organized wireless network. All sensors to all kinds of information real-time monitoring， sensing， collecting and processing in the monitoring area， such as temperature， humidity， pressure and the chemical concentration， and through multi hop way monitoring data will be transm

11、itted to the sink node， the data is transmitted to the task manager node by satellite and Internet network. The network architecture is shown in figure 1.2 Hardware design of environment parameters acquisition data nodeThis paper used chip CC2430. The CC2430 chip is line with 2.4 GHz RF chip and Zig

12、Bee technology by Chipcon company production. ZigBee specification of equipment can be used CC2430 chip as the main control chip. The CC2430 chip is the main component of the RF front-end， memory and cpu. Temperature sensor， humidity sensor and light sensor module， can be connected by pins and the C

13、C2430 chip. Control of different greenhouse equipment valve， control the differences， such as the water flow control valve to control the MV voltage， TLV5616 to DA converter using TIs fine control of the valve. While the greenhouse rolling blinds， ventilation equipment needs to be controlled by seri

14、al ports. Wireless sensor node and peripheral circuit as shown in figure 2.3 The software design of Zigbee wireless sensor networkThe design of the network is a kind of Zigbee wireless sensor network. Network use Zigbee technology in the design of the software program. The network is a tree network，

15、 three types of equipment including network， named coordinator， router， sensor， the relationship between them as shown in figure 3. The network is an achievable uplink single hop and multi hop data transmission and down overall and single equipment control network. If the network is to achieve the c

16、ontrol of uplink data transmission and downstream equipment， requires all devices are capable of wireless receiving and sending. Network， sensor for collecting the data， send data， receives command and execute. The router is responsible for transferring data and to transmit commands. The coordinator

17、 is responsible for receiving all the data and send it to the host computer， transfer and receiving the commands from the host to the lower layer equipment.3.1The program design of router The router is the whole network hub； each Zigbee wireless sensor networks can have more than one router. Accordi

18、ng to the different network coverage， network of the largest multi hop number is different， the largest number of multi hop router， need more. If the maximum multi hop number is 1， then the network does not have a router. In this network， a router with lower other routers or sensor binding， lower eq

19、uipment in transit coordinator transmits its own routing report at the same time data to the upper receiving its binding or other routers， to transfer multi hop， expand the network coverage； on the other hand is receiving coordinator wireless broadcast or unicast commands， and then to the underlying

20、 device to transmit commands， the command transfer function.The coordinator of router and the upper bound or other router， router and coordinator preferentially bound. The program flow chart is as shown in fig.4. Demo router procedure can be divided into 4 modules.The main function of the wireless t

21、ransmission module is to parse the command treated by radio or directly send unicast network address. Compared with the wireless transmission module is the module with the coordinator， principles and procedures are basically the same， address mode， network group number and the same endpoint settings

22、.3.4 The network moduleNetwork router module includes opening and confirming module and bind to open and confirm module of the system， the main responsible for opening the protocol stack and the formation of binding in Demo network.The module is opened and confirming module and coordination system i

23、s basically the same as the. The main is to open the Zigbee protocol stack. After the Zigbee protocol stack open， equipment read configuration parameters and equipment into the network from the non-volatile memory. When the startup process is completed， the program to determine whether the protocol

24、stacks up for success. If successful， the protocol stack of the boot process is completed， the program began binding work； if not successful， re open protocol stack.Open and confirm module bound into confirm opening and binding of the two module. Enabled module binding is that routers and the upper

25、bound of the equipment， mainly through the network layer protocol stack of OSAL operating system， establish the binding table， the two devices to realize the binding. The main function of confirming module binding is bound state router itself exists for confirmation. If the binding success， program

26、for physical address or routing report sending and data transfer work； if the binding is not successful， the program re binding work. 3.5 Send routing Report and equipment transfer data moduleThe module includes the module to send routing report and transfer data module through the routing protocol.

27、 The main function of the sending module routing report is a procedure to obtain the physical address of the system itself in part Demo， routing report， and the physical address or routing report sent to the upper and the binding equipment. Here to obtain the physical address and sent to receive the

28、se physical address in the coordinator and transmitted to the PC， PC can record the physical address of each device network address corresponding to the overall operation and control， convenient network.4 ConclusionsThe paper successfully completes the design and implementation of wireless sensor ne

29、twork that can applied to the data transmission and control. In the network， the entire sensor can be normal acquisition process and send the data， also can be the normal reception coordinator or router to send the command and execute. The routers in the network can be normal transit equipment data，

30、 but also can send orders to other equipment， also can be the normal execution of network on its own command. The coordinator in the network can receive other equipment and transmitting data to the PC， but also can receive commands from host computer and send to the lower. The system has abundant ne

31、twork function， operability， robustness and strong practicability， good running state， to achieve the desired results.Reference1 Yang Ting Design of wireless sensor network automatic drip irrigation system based on CC2430 J. computer measurement and control.2010， 18 （6）：. 1332-13382 Si Minshan， Gao

32、yi. Design of Greenhouse Wireless Sensor Network Monitoring System Based on solar energyJ. wireless communication technology. 2010 19 （2）： 57-623V Raghunathan， C Schurgers， S Park，et al. Energy2Aware Wireless Micro sensor Networks J. IEEE Signal Processing Magazine， 2002，19（2）：40250.4Samuel Madden， Michael J Franklin， Joseph M Hellerstein， et al.TAG：A Tiny Aggregation Service for Ad2Hoc Sensor NetworksA.Proc of the 5th Annual Symp on Operating Systems Design and Implementation （OSDI）C.2002.5University of California at Berkeley. TinyOSEB/OL.http：/webs.cs.berkeley.edu/tos，2004205.