A Position DetectionMechanism for Location-aware Pin&Play

Abstract

We propose a position detection mechanism for locationaware Pin&Play. Though the positions of inserted pins are important for most applications, they could not be detected in previous systems. The proposed method detects the positions of pins by processing images taken with a camera placed in front of the board. The proposed method has a dynamic adjustment mechanism for image processing parameters to achieve higher accuracy even when the surrounding lighting condition changes. Moreover, it also has an error estimation mechanism to avoid the accumulation of position error. We also clarify the effectiveness of our proposed method through performance evaluations.

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

“…In contrast, our method requires only a cheap web camera. For the Pin&Play that is the system using the conductive fabric, it has been proposed that the system detects the positions of devices by calculating the difference picture of before-and-after picture that the system had turned on the LEDs possessed on the devices such as buttons and sliders 25 . This method has been proposed on the assumption that the system is able to recognize the IDs of the installed devices beforehand, and does not consider the recognition error of blinking.…”

High accuracy position and orientation detection in two-dimensional communication network

“…A concept using physical surfaces as a medium for data and/or power transmission has been proposed in several works [6,9,15,17]. Many of these projects try to detect the position of devices placed on the surfaces [3,5,6].…”

“…Pushpin Computing [9] and Pin&Play [17] provide communication and power supply environments through conductive sheets. Magic Surface [6] is also a system that shares a common goal to provide networking, power supply, and locationaware environment on a surface-like device.…”

“…Therefore, many researchers have been interested in creating HCI environments on these surfaces. Especially in ubiquitous computing, several significant works have tried to develop surfaces for networking and powering infrastructures [6,9,15,17]. All of them have used physical surfaces as media for data and/or power transmission.…”