Synchronous Sleep Mechanisms for Wireless Sensor Networks

Reference#: P02050

Wireless sensor networking is a technology which has a wide range of applications including emergency management, environmental monitoring and in particular, military.

Sensors need to be relatively small and powerful enough not only to collect information, but also act as a transit node to relay information from its neighbors to destination. With its size constraints and its mission, sensors are usually battery operated and it is generally not practical to replenish them. Therefore, it is essential that a sound energy conservation strategy is used to prolong the lifetime of the sensor network.

Inventors at the Johns Hopkins Applied Physics Laboratory have developed two novel synchronous sleep strategies (turning off the radio to conserve sensor battery power), which are respectively referred to as:

Local Oscillator Based Scheme
Network Based Scheme an extension of the above with the possibility of a more powerful synchronization scheme in the company of a much longer network lifetime.

Wireless sensor networks will drive the next phase of explosive growth in the wireless industry. This potentially successful technology would give unique opportunities to those in the area of small tech industry, sensor networking, semiconductor and the like.

Ms. H. L. Curran
Phone: (443) 778-7262