Lu Dongming

Publications (2)0 Total impact

• Conference Proceeding: A Wireless Sensor System for Long-Term Microclimate Monitoring in Wildland Cultural Heritage Sites

  Xia Ming, Dong Yabo, Lu Dongming, Xue Ping, Liu Gang
  [show abstract] [hide abstract]
  ABSTRACT: Microclimates in many wildland cultural heritage sites are not under surveillance up to now, due to the lack of power supply and network access. However, accurate microclimate data in cultural heritage sites are very important for research and conservation. In this paper, we present a wireless sensor system for long-term microclimate monitoring in wildland cultural heritage sites, and its deployment at the Mogao Grottoes. The system integrates wireless sensor network (WSN), long-distance wireless polling network (LWPN) and Internet to fit the complex geography of the Mogao Grottoes. Both robust hardware and fault tolerance strategies have been developed to ensure long-term stable monitoring. The currently deployed system consists of 241 data sensors covering 57 typical caves. The reliability and long life-time of the system are verified through network and battery performance evaluations at the end of the paper.
  Parallel and Distributed Processing with Applications, 2008. ISPA '08. International Symposium on; 01/2009
• Conference Proceeding: E-NORS: A Repair Scheme for Energy-Efficient Network Organization in Wireless Sensor Networks

  Xia Ming, Dong Yabo, Lu Dongming
  [show abstract] [hide abstract]
  ABSTRACT: The unstable nature of wireless communication makes it hard to maintain a reliable network organization in Wireless Sensor Networks (WSNs). Therefore, network organization repair scheme is highly required for reliability. Because of the high energy efficiency requirement, the network organization repair scheme for WSNs differs from that for traditional networks. However, existing WSN network organization repair schemes are not energy efficient due to persistent listening, and may cause sensor nodes to fail to recover from network organization error situations. This paper proposes E-NORS, Energy-efficient Network Organization Repair Scheme, to overcome the high power consumption problem. E-NORS tries to restore the network organization on a duty cycle for energy conservation. A dynamic duty cycle adjustment mechanism is further presented in E-NORS to boost the repair speed in short time network organization error conditions. Evaluation results show that E-NORS can greatly prolong the lifetime of nodes in repairing the network organization, while maintaining a considerable repair speed.
  Computer and Computational Sciences, 2008. IMSCCS '08. International Multisymposiums on; 11/2008