Abstract:
Ultrasonic motion sensors are used to obtain occupancy information of indoor spaces. Although they provide a high accuracy as compared to other sensors, like Passive Infr...Show MoreMetadata
Abstract:
Ultrasonic motion sensors are used to obtain occupancy information of indoor spaces. Although they provide a high accuracy as compared to other sensors, like Passive InfraRed (PIR), they require a higher power consumption in general. In this paper we propose power hopping, an automatic power optimization method that allows ultrasound motion sensors to optimize their transmitter power level. The objective is to reduce the overall energy consumption of these sensors. We have tested our method using a sensor prototype, and the results show that, depending on the sensor's environment, a possible saving in the transmitter power can be achieved, which can be as high as 78%. We also derive an upper bound limit of the method's convergence time.
Date of Conference: 04-08 August 2017
Date Added to IEEE Xplore: 28 June 2018
ISBN Information: