Providing citizens with accurate information on traffic conditions can encourage journeys at times of low congestion, and uptake of public transport. The TIME project (Transport Information Monitoring Environment) has focussed on urban traffic, using the city of Cambridge as an example. We have investigated sensor and network technology for gathering traffic data, and have designed and built re...

wireless sensor networks (wsns) arebecoming increasingly popular, and very useful in militaryapplications and environmental monitoring. however,security is a major challenge for wsns because they areusually setup in unprotected environments. our goal in thisstudy is to simulate an intrusion detection system (ids)that monitors the wsn and report intrusions accurately andeffectively. we have thus...

A sensor network is made up of a large number of sensors with limited energy. Sensors collect environmental data then send them to the sink. Energy efficiency and thereby increasing the lifetime of sensor networks is important. Direct transfer of the data from each node to the central station will increase energy consumption. Previous research has shown that the organization of nodes in cluster...

Beam monitors using cameras have evolved from qualitative beam observation to precision measurements. After a description of the two main TV standards, the various sensors: TV tubes (Vidicon), solid state sensors (Interline and Frame Transfer CCDs, CMOS and CID X-Y matrices), and Fast Shutter/Intensifiers of the MCP type are reviewed. Comparative resolution measurements for the various sensors ...

Wireless sensor networks (WSNs) consist of a large number of sensor nodes which are capable of sensing different environmental phenomena and sending the collected data to the base station or Sink. Since sensor nodes are made of cheap components and are deployed in remote and uncontrolled environments, they are prone to failure; thus, maintaining a network with its proper functions even when und...

In this paper, we study WSN design, as a multi-objective optimization problem using GA technique. We study the effects of GA parameters including population size, selection and crossover method and mutation probability on the design. Choosing suitable parameters is a trade-off between different network criteria and characteristics. Type of deployment, effect of network size, radio communication...

There have been many significant advancements in the development of sensor and sensor network technologies for structural health monitoring applications. As structural monitoring technologies mature and their instrumentation on civil infrastructures continues to grow, data management has become an important issue for long term monitoring. On one hand, the data management system needs to be scal...

The difficulty of developing wireless sensor systems is widely recognized. Problems associated with testing, debugging, and profiling are key contributing factors. While network simulators have proven useful, they are unable to capture the subtleties of underlying hardware, nor the dynamics of wireless signal propagation and interference; physical experimentation remains a necessity. To this en...

The developments in technologies are expanding the boundaries and broadening the domain of what is technically and economically feasible to achieve in the application of data reconciliation activities in manufacturing plants. They also, naturally, incorporate additional issues and open the opportunities for new research activities. For example, recent developments on model-centric technologies ...

Beam monitoring using cameras has evolved from qualitative beam observation to precision measurement. After a description of the two main TV standards, various sensors including TV tubes (Vidicon), solid state sensors (Interline and Frame transfer CCDs, CMOS and CID X-Y matrices), and Fast Shutter/Intensifiers of the MCP type are reviewed. Comparative resolution measurements for the various sen...