Proceedings ArticleDOI
Brimon: a sensor network system for railway bridge monitoring
TLDR
The BriMon architecture is designed with careful consideration of the interaction between the multiple requisite functionalities such as time synchronization, event detection, routing, and data transfer, and the design choices are indeed quite effective.Abstract:
Railway systems are critical in many regions, and can consist of several tens of thousands of bridges, being used over several decades. It is critical to have a system to monitor the health of these bridges and report when and where maintenance operations are needed. This paper presents BriMon, a wireless sensor network based system for such monitoring. The design of BriMon is driven by two important factors: application requirements, and detailed measurement studies of several pieces of the architecture. In comparison with prior bridge monitoring systems and sensor network prototypes, our contributions are three-fold. First, we have designed a novel event detection mechanism that triggers data collection in response to an oncoming train. Next, BriMon employs a simple yet effective multi-channel data transfer mechanism to transfer the collected data onto a sink located on the moving train. Third, the BriMon architecture is designed with careful consideration of the interaction between the multiple requisite functionalities such as time synchronization, event detection, routing, and data transfer. Based on a prototype implementation, this paper also presents several measurement studies to show that our design choices are indeed quite effective.read more
Citations
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Journal ArticleDOI
Energy Harvesting Sensor Nodes: Survey and Implications
TL;DR: Various aspects of energy harvesting sensor systems- architecture, energy sources and storage technologies and examples of harvesting-based nodes and applications are surveyed and the implications of recharge opportunities on sensor node operation and design of sensor network solutions are discussed.
Journal ArticleDOI
Energy Provisioning in Wireless Rechargeable Sensor Networks
TL;DR: The analysis shows that the deployment methods, by exploiting the physical characteristics of wireless recharging, can greatly reduce the number of readers compared with those assuming traditional coverage models.
Journal ArticleDOI
Wireless Sensor Networks for Condition Monitoring in the Railway Industry: A Survey
TL;DR: Practical engineering solutions are focused on which sensor devices are used and what they are used for; and the identification of sensor configurations and network topologies, which identifies their respective motivations and distinguishes their advantages and disadvantages in a comparative review.
Proceedings ArticleDOI
Practical asynchronous neighbor discovery and rendezvous for mobile sensing applications
Prabal Dutta,David E. Culler +1 more
TL;DR: Disco, an asynchronous neighbor discovery and rendezvous protocol that allows two or more nodes to operate their radios at low duty cycles and yet still discover and communicate with one another during infrequent, opportunistic encounters without requiring any prior synchronization information is presented.
Proceedings ArticleDOI
Energy provisioning in wireless rechargeable sensor networks
TL;DR: In this article, a WRSN built from the industrial wireless identification and sensing platform (WISP) and commercial off-the-shelf RFID readers is investigated, based on a practical wireless recharge model supported by experimental data.
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