複数のToFセンサを用いたToF・自己容量複合近接覚・接触センサ

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2021/06/01

タイトル(英語): Proximity and Contact Sensor by Combining Multiple ToF Sensors and Self-Capacitive Sensor

著者名: 辻　聡史（福岡大学工学部電気工学科），小浜　輝彦（福岡大学工学部電気工学科）

著者名(英語): Satoshi Tsuji (Department of Electrical Engineering, Fukuoka University), Teruhiko Kohama (Department of Electrical Engineering, Fukuoka University)

キーワード: ToFセンサ，静電容量センサ，近接覚・接触センサ，協働ロボット　　ToF sensor，capacitive sensor，proximity and contact sensor，collaborative robots

要約(英語): Collaborative robots, which work in the same places with humans, have recently been attracting a lot of attention. Proximity and tactile sensors are among the vital devices for collaborative robots to work safely. In this study, we proposed a proximity and contact sensor for a collaborative robot by combining a multiple time-of-flight (ToF) sensor and a self-capacitive sensor. ToF sensors can detect distance at a non-contact range, and they have a long measurement range with respect to the sensor vertical direction (Z-axis). However, the detection accuracy and X-Y axis detection range of ToF sensors are reduced at close ranges. Self-capacitive sensors can detect objects before and on contact, and they have high sensitivity at close ranges. However, the detection range of their Z-axis is small, and it is difficult for them to detect distance. In this study, we aimed at expanding the measurement range and reducing the blind spot area of collaborative robot sensors using multiple ToF sensors with the larger electrodes of self-capacitive sensors. Using the prototype sensor, it was possible to obtain efficient distance measurements with a range of 0-400 mm. The prototype sensors were placed on a robot arm, and they were able to detect object positions at a proximity range in addition to human contact. Additionally, the robot arm was controlled using measurement data. We believe that the proposed sensor can be used as a proximity and contact sensor for collaborative robots.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.141 No.6 （2021）

本誌掲載ページ: 197-204 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejsmas/141/6/141_197/_article/-char/ja/