Activity recognition using array antenna

Yusuke Hino, Jihoon Hong, Tomoaki Ohtsuki

研究成果: Conference contribution

7 被引用数 (Scopus)


Nowadays, the population of elderly persons who live alone is increasing in Japan. Some systems are available to monitor those persons' activities, however, they have some limitations; physical burden and need to wear sensors. In our previous work, we have proposed a fall detection method using an array antenna. Array antenna is an antenna, which detects radio wave propagation by observing the direction of arrival (DOA) of the received signal. In the conventional method, it can only detect whether the activity is fall or not, so it is impossible to recognize which kind of non-fall activity the person does. In addition, the detection accuracy of the non-fall activity is not so high, because of the difficulty to detect the difference of fall and sit. In this paper, we propose an activity recognition system by using array antenna. We detect the person's activity (fall, walk, sit, and stand still). To improve the accuracy, we set thresholds for the continuous number of each activity, and correct the result which continues less than the threshold. Also, we use the state transition of the activity, and correct the impossible activity transition.

ホスト出版物のタイトルIEEE International Conference on Communications
出版社Institute of Electrical and Electronics Engineers Inc.
出版ステータスPublished - 2015 9月 9
イベントIEEE International Conference on Communications, ICC 2015 - London, United Kingdom
継続期間: 2015 6月 82015 6月 12


OtherIEEE International Conference on Communications, ICC 2015
国/地域United Kingdom

ASJC Scopus subject areas

  • 電子工学および電気工学
  • コンピュータ ネットワークおよび通信


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