Archive for the ‘sensors’ Category

Smart Electricity Grids and Energy Efficiency Friday, October 15th, 2010

A huge amount of energy generated at power stations is lost at various points. There are losses during transmission of the energy to consumers, wasteful use of energy at the consumer ends and even theft of energy leading to unaccounted losses. Any effort at efficient use of energy, a scarce resource, can benefit communities significantly.

Smart Electricity Grids employ several means to achieve the final goal of efficient use of available energy. Sensing, measurement and control devices are used to automatically regulate energy consumption etc in response to specific conditions. Superconductive transmission lines might be used to reduce losses during transmission of power. Advanced Metering Systems is typically an essential component of smart grids.

Advanced Metering Systems (AMI) not only measure energy usage as conventional metering systems do but also analyze energy usage patterns and communicate relevant information to those involved, including suppliers and customers. Two-way communication allows information recipients to respond with actions that lead to solutions. For example, customers become aware of unexpectedly heavy energy usage and can respond with actions that lead to lowering of their energy bills.

Suppliers can tailor their charging pattern in ways that discourage energy use during peak load times. Advanced Electric Meters can record separately the energy usage in differentiated registers for each time period.

Read about a seminar on smart grid development in the Taiwan.

Micro and Nanosensors for Security, Health and Environment Friday, February 12th, 2010

Sophisticated sensors can help with such issues as environmental degradation, an ageing population and a secure world.

A Department of Homeland Security project is aimed at equipping GPS-enabled cell phones with tiny chemical sensors. What this means is that millions of phone users will be acting as chemical detection nodes and transmitting the information thus sensed.

Japan’s DoCoMo has announced the launch of a sensor network to detect levels of pollen, carbon dioxide, UV sunlight and other atmospheric conditions. The collected data will be aggregated and made available to pharmaceutical companies, healthcare institutions and municipal governments.

DoCoMo has an extensive mobile network and associated facilities in urban and rural Japan and the sensor network project seeks to create new value by leveraging the mobile network. This particular project addresses the needs of environmental protection, safety, security and healthcare.

More details at: Environmental Sensor Network in Japan