A Position Detection Method of Devices on Conductive Clothes by Controlling Led Blinking

Abstract

Various wearable computing devices face problems with their power supplies, communication channels, and placement. Conductive clothes can resolve these problems, but it is still difficult to know the positions of devices on the conductive fabric. Therefore, we propose a method to detect the positions of such devices by using a camera. To detect the positions, our method blinks the LEDs on the devices according to their ID. Additionally, we propose several methods to shorten the time for detection. An experimental evaluation confirmed that compared with conventional method our methods reduce the time to detect the positions of the devices.

VRLA battery state of health estimation based on charging time

“…Batteries are used in many daily life activities, such as in portable telecommunication equipments, multimedia devices, hybrid electric vehicles (HEV) [1], electric vehicles (EV) [2,3], energy harvesting, base-transceiver station (BTS) in the telecommunication system [4], wearable computing devices [5], wireless sensor network (WSN) [6,7] and energy storage in smartgrid networks [8,9]. A battery in a system must be used properly in order to reach its lifetime as long as possible.…”