| Wireless sensor network has large scale, self-organization, dynamic, based on thedata center characteristics and so on, it has been more and more widely used in real life.Zigbee technology based on IEEE802.15.4wireless standard, it has these characteristicsof low power consumption, low cost, short time delay, large network capacity, safety andreliability, and provides a new development for wireless sensor networks.In this paper, the wireless multi-sensor network for data transmission and controlwhich is based on a wireless sensor network, using Zigbee technology, is designed as akind of network that can realize single hop and multi-hop data transmission of uplink andcan realize overall and single equipment control of downlink. There are three types ofequipment included in the network, they are the coordinator, router and sensor.Firstly, the network is planned overall. The network is a tree network which isconsisted of three types of equipment. The network can realize the function of datatransmission and control by the overall planning framework.Secondly, a hardware development board is designed, and some hardware equipmentsof network demand which includes the chip and various external equipment and so on areselected. These equipments provide hardware basis for network design.Thirdly, the software program of three types of equipment is designed, and all of thenetwork design work are completed. The network using basically sensors monitorsphysical quantity of geographic area, and transfers monitoring data to remote coordinatorby routers using the way of multi-level relay. The coordinator transmits data to the hostcomputer user at last. At the same time, the host computer user can control remotely anydevice in the network by coordinator.Finally, the network is debugged and tested. Knowing by the result of the finalrunning condition of the network, the whole network runs in good condition, realizes theall of the design function, achieves the desired result. |
PDF Full Text Request