Posts Tagged ‘wireless sensor’

Crop farmers going high-tech

Sunday, July 26th, 2009

KUALA LUMPUR: Mimos Bhd believes its wireless sensor network (WSN) for precision agriculture can help the local industry to produce quality crops.

“The sensors monitor micro-climate changes and soil nutrients within a specific area very effectively,” said Yusri Alias, head of technology portfolio management at Mimos.

WSN is a wireless network consisting of spatially distributed devices that use sensors to monitor environmental conditions.

Although it is a generic technology that can be applied in many fields — such as the monitoring of infrastructure, slope management, and environment watch — Mimos is focusing in the area of precision agriculture.

Source: The Star

Wireless sensors for smart buildings

Sunday, January 18th, 2009

NRC (National Research Council Canada) has launched an ambitious multidisciplinary project to develop and link arrays of indoor environment sensors in order to help improve a building’s environmental health, energy efficiency and maintenance, as well as the general comfort of its occupants.

Today, building sensors can be used to detect a wide variety of environmental conditions such as carbon dioxide, temperature, light levels, noise levels and occupancy rates. Such data could then be collated centrally where “some intelligence is applied” to decide whether it’s necessary to change operational settings, says Dr. Guy Newsham, who leads the lighting group at the NRC Institute for Research in Construction (NRC-IRC) in Ottawa. “Signals would then be sent to actuators within the building systems to adjust an airflow rate, temperature or light level in ways that are better for office workers and management, and increase energy efficiency,” he explains.

Source: WSN Blog

Smart vibration sensor to check rail accidents

Thursday, January 1st, 2009

A SMART vibration sensor with wireless communication for recording and analysing train vibration has been developed in the country.

Alka Dubey and Ashish Verma of Sagar University brought this innovation to light, while presenting their paper at the fourth international Wireless Communication Sensor Networks concluded at Indian Institute of Information Technology-Allahabad (IIIT-A) on Monday (Dec 29).

Dubey said that high speed trains are one of the most impressive developments of the recent years having brought a new degree of comfort for travelers. These trains posed serious accidents because of the high level of vibration, which are generated. Therefore to make the train speed smoother, a smart vibration sensor is developed. It is a self sensation device equipped with recording and wireless communication interface.

Source: Merinews

802.15.4 vs ZigBee

Wednesday, November 19th, 2008

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The Wireless Sensor Network Research group (WSNRG) has published a new article titled 802.15.4 vs ZigBee which to help people to clarify with all the communications technologies which are used in the WSN field: 802.15.4, ZigBee, Mesh protocols, 2.4GHz, 868MHz and 900MHz bands… This first document compares both *IEEE 802.15.4* and *ZigBee* technologies and explains its main characteristics.

Read more on this article at Sensor Networks.Org