,754 北京科技大学学报 第29卷 在实际监测场合，选择节点每2min活动时间 等特点，该方案在实际现场测试中表现出了较好的 为2s,则辅助节点持续工作的时间可以达到200d, 性能，满足了冶金等企业对设备监测的要求， 满足了实际使用过程中对节点维护频率的要求 4.3传输时延 参考文献 如图7所示，在正常情况下，数据从一个节点传 [1】崔莉，鞠海玲，苗勇，等无线传感器网络研究进展.计算机研究 与发展，2005,42(1)：163 输到另一个节点的时间包括数据的传输时延6a和 [2]Gay D,Levis P.von Behren R.The nesC language:a holistic ap- 响应的传输时延6ACK,数据从传感器节点经过m proach to networked embedded systems//ACM SIGPLAN Con- 跳到达簇头消耗的时间是： ference on Programming Language Design and Implementation. tal=mdaa十(m-1)dAcK (4) San Diego.USA.2003 [3]Woo A.Tong T.Culler D.Taming the underlying challenges of ☆ 簇头 reliable multihop routing in sensor networks//Proceedings of the 传感器节点 First International Conference on Embedded Networked Sensor 辅助节点 Systems of the ACM.New York,2003:14 [4]Wei Y.Heidemann J,Estrin D.An energy-efficient MAC proto 图7传输时延 col for wireless sensor networks//Proceedings of IEEE INFO- Fig.7 Transmission delay COM.New York.USA,2002,1567 [5]Doherty L,Warneke B A,Boser B E.et al.Energy and perfor- 可以看出，当daa、⊙AcK一定的时候，数据的传 mance considerations for smart dust.Int J Parallel Distrib Syst 输延迟由跳数m来决定，控制传感器节点到簇头以 Networks,2001,4(3):121 [6]Lin E Y,Rabaey J,Wolisz A.Power-efficient Rendez vous 最短路径传输，就可以得到较小的延迟， schemes for dense wireless sensor networks//Proe.of ICC 2004 5结论 Paris.Paris.2004 [7]Shu J.Variaya P.PEDAMACS:Power efficient and delay aware 针对目前冶金等企业设备监测采用的传统有线 medium access protocol for sensor networks.Inform Res Fron- 和无线监测系统的缺点，提出了一种基于无线传感 ties,2003,5.29 器网络的新解决方案.该方案具有成本低、组网方 [8]Ganeriwal S.Kumar R.Srivastava M B.Timing syne protocol for sensor networks//ACM Conference on Embedded Networked 便简单、持续工作时间长、传输延迟小以及高可靠性 Sensor Systems.Los Angeles,2003 A high performance multi-hop and synchronous time-division protocol for wireless sensor networks of equipment monitoring FAN Yong),XU Jinwu2),YANG Debin2),WANG Qin) 1)Information Engineering School.University of Science and Technology Beijing.Beijing 100083.China 2)Mechatronie Engineering Research Institute.University of Science and Technology Beijing,Beijing 100083.China ABSTRACT A kind of multi-hop and synchronous time-division protocol for wireless sensor networks based on equipment monitoring of metallurgy industry was proposed.The protocol employs self-organized and hierarchical topology.Cluster headers structure backbone network to forward sensor data to the sink node.Nodes in cluster transmit data in a lower radio power to the cluster header by multi-hop and time-division,they reduce power loss and transmission delay by synchronous sleeping scheme.Application in an equipment monitoring system of met- allurgy industry indicates that this protocol has the characteristic of strong extension,reliable transmission, small signal delay,and low power loss. KEY WORDS wireless sensor networks;hierarchical topology;synchronous time-division:equipment moni- toring;network protocol在实际监测场合‚选择节点每2min 活动时间 为2s‚则辅助节点持续工作的时间可以达到200d‚ 满足了实际使用过程中对节点维护频率的要求． 4∙3 传输时延 如图7所示‚在正常情况下‚数据从一个节点传 输到另一个节点的时间包括数据的传输时延 δdata和 响应的传输时延 δACK．数据从传感器节点经过 m 跳到达簇头消耗的时间是： δtotal＝ mδdata＋（ m—1）δACK （4） 图7 传输时延 Fig．7 Transmission delay 可以看出‚当 δdata、δACK一定的时候‚数据的传 输延迟由跳数 m 来决定‚控制传感器节点到簇头以 最短路径传输‚就可以得到较小的延迟． 5 结论 针对目前冶金等企业设备监测采用的传统有线 和无线监测系统的缺点‚提出了一种基于无线传感 器网络的新解决方案．该方案具有成本低、组网方 便简单、持续工作时间长、传输延迟小以及高可靠性 等特点．该方案在实际现场测试中表现出了较好的 性能‚满足了冶金等企业对设备监测的要求． 参 考 文 献 ［1］ 崔莉‚鞠海玲‚苗勇‚等．无线传感器网络研究进展．计算机研究 与发展‚2005‚42（1）：163 ［2］ Gay D‚Levis P‚von Behren R．The nesC language：a holistic ap￾proach to networked embedded systems∥ACM SIGPLAN Con￾ference on Programming Language Design and Implementation． San Diego‚USA‚2003 ［3］ Woo A‚Tong T‚Culler D．Taming the underlying challenges of reliable multihop routing in sensor networks∥Proceedings of the First International Conference on Embedded Networked Sensor Systems of the ACM．New York‚2003：14 ［4］ Wei Y‚Heidemann J‚Estrin D．An energy-efficient MAC proto￾col for wireless sensor networks∥Proceedings of IEEE INFO￾COM．New York‚USA‚2002：1567 ［5］ Doherty L‚Warneke B A‚Boser B E‚et al．Energy and perfor￾mance considerations for smart dust．Int J Parallel Distrib Syst Networks‚2001‚4（3）：121 ［6］ Lin E Y‚Rabaey J‚Wolisz A．Power-efficient Rendez-vous schemes for dense wireless sensor networks∥Proc．of ICC 2004 Paris．Paris‚2004 ［7］ Shu J‚Variaya P．PEDAMACS：Power efficient and delay aware medium access protocol for sensor networks．Inform Res Fron￾tiers‚2003‚5：29 ［8］ Ganeriwal S‚Kumar R‚Srivastava M B．Timing-sync protocol for sensor networks∥ACM Conference on Embedded Networked Sensor Systems．Los Angeles‚2003 A high-performance mult-i hop and synchronous time-division protocol for wireless sensor networks of equipment monitoring FA N Yong 1）‚XU Jinw u 2）‚Y A NG Debin 2）‚WA NG Qin 1） 1） Information Engineering School‚University of Science and Technology Beijing‚Beijing100083‚China 2） Mechatronic Engineering Research Institute‚University of Science and Technology Beijing‚Beijing100083‚China ABSTRACT A kind of mult-i hop and synchronous time-division protocol for wireless sensor networks based on equipment monitoring of metallurgy industry was proposed．The protocol employs self-organized and hierarchical topology．Cluster headers structure backbone network to forward sensor data to the sink node．Nodes in cluster transmit data in a lower radio power to the cluster header by mult-i hop and time-division‚they reduce power loss and transmission delay by synchronous sleeping-scheme．Application in an equipment monitoring system of met￾allurgy industry indicates that this protocol has the characteristic of strong extension‚reliable transmission‚ small signal delay‚and low power loss． KEY WORDS wireless sensor networks；hierarchical topology；synchronous time-division；equipment moni￾toring；network protocol ·754· 北 京 科 技 大 学 学 报 第29卷