IPSJ SIG Technical Report Vol.2014-CDS-10 No /5/ Intuitive appliance control method based on high-accurate indoor localization system

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1 1 1 1 Intuitive appliance control method based on high-accurate indoor localization system Jun Komeda 1 Yutaka Arakawa 1 Morihiko Tamai 1 Keiichi Yasumoto 1 Abstract: In our home, the increase of appliances causes the increase in the number of remote controls. In order to reduce the number of remote controls, there exists multifunctional learning remote controls. However, their too many buttons may confuse users. On the other hand, a gesture based control system has been recently proposed. However, it requires users to perform complicated gestures for selecting appliances or for changing channels. Therefore, they are bothering users and are not practical. In this paper, we propose an appliance control system which has advantage of both remote controls and gesture recognition. In our system, a user can select the target device by just pointing the appliance with a remote control. To achieve this, we utilize a high-accuracy indoor localization system. After selecting the device, a user can control the appliance with the buttons displayed on the remote control for the selected device. Through an experiment, we investigate how the localization accuracy is affected in our system, and evaluate it. 1. 1 Nara Institute of Science and Technology [1][2][3][4] AR c 2014 Information Processing Society of Japan 1

(1) (2) Wi-Fi 2. 2.1 AR() AR [1] AR AR AR ( ) 2.2 [2][3] 2.3 [4] 2.4 3. c 2014 Information Processing Society of Japan 2

(3) RECEIVER TAG 1 1 2 4 1 1 tag id integer Tag( ) time stamp timestamp pos x integer x ( : mm) pos y integer y ( : mm) pos z integer z ( : mm) 2 x y z 15.6 mm 30.7 mm 3.4 mm 31.1 mm 16.5 mm 4.8 mm 33.9 mm 13.1 mm 11.5 mm 3.4 mm 15.1 mm 18.5 mm 2 RECEIVER( ) TAG( ) 3.2 2 Android 3 3.1 1 1LDK 3.1.1 TAG TAG RECEIVER( ) ( 2) TDOA(Time Difference of Arrival) (1)TAG RF (2) RECEIVER RF 位置センサ A 位置センサ B (x! A, y! A, z! A) 3 (x! B, y! B, z! B) リモコンデバイス 3.3 4 3.4 (1) (2) (3) 3 5 c 2014 Information Processing Society of Japan 3

情報処理学会研究報告 ON OFF 1 2 3 4 5 6 7 8 9 10 11 12 位置情報 サーバー リモコン デバイス + - 図 4 位置センサ 図 6 操作パネルの例 学習リモコン システムのハードウェア構成 家電操作システム 家電選択 モジュール リモコン表示 モジュール 家電制御 モジュール 位置情報 サーバ 液晶 ディスプレイ 学習リモコン 図 5 家電操作システムの構成 3.4.1 家電選択モジュール 本モジュールは 位置情報サーバからリモコンに取り付 けられた 2 つのセンサの位置情報を取得し 得られたセン サ情報と家電機器の配置状況から どの家電機器がリモコ ンによって指されているかを推定する 3.4.2 リモコン表示モジュール 本モジュールは 家電選択モジュールにより推定された 家電機器に対応する操作パネルを液晶画面上に表示する 3.4.3 家電制御モジュール 本モジュールは 学習リモコンとの通信を行い ユーザ が指示した操作を学習リモコンに対して送信する 4. 家電操作システムの実装 ここでは 家電操作システムの構成と家電選択アルゴリ 図 7 リモコンデバイスのプロトタイプ 4.1.2 家電への赤外線送信 家電機器の制御は 赤外線信号を学習し ネットワー ク経由で赤外線の送信ができる学習型リモコンである iremocon[5] を用いて行う 4.2 家電選択アルゴリズム ここでは 三次元位置情報を用いた家電選択アルゴリズ ムに関して説明を行う 4.2.1 家電機器の選択判定 本システムにおいて 家電機器はそれぞれ図 8 に示すよ うな 中心座標と幅 W 高さ H のパラメータを持つ検出 平面としてモデル化する また 三次元座標上にモデル化 した家電機器を配置する ズムについて説明する W 中心位置 4.1 システムの構成 本システムは 位置情報を格納する位置情報サーバ 位 H 置センサ 液晶ディスプレイからなるリモコンデバイス 学習リモコンにより構成される システムのハードウェア 構成を図 6 に示す 4.1.1 位置センサを用いたリモコンデバイス 実際に使用するリモコンデバイスのイメージを図 7 に 示す リモコンの両端に 60cm の距離を離して位置セン サ TAG を取り付ける 今回は液晶ディスプレイとして Samsung GALAXY S II を用いたが システムの構成上 必ずしも Android 端末を用いる必要はない c 2014 Information Processing Society of Japan 図 8 家電の検出平面と三次元座標モデル 4

4.2.2 z y x P B Q 11 12 ( 12) A TV TV 9 A,B ( 9) ax + by + cz + d = 0 (1) (a) (b) A = (A x, A y, A z ) (2) B = (B x, B y, B z ) (3) Q Q x B x A x Q = Q y = k B y A y (4) Q z B z A z 11 操作可能な角度 TV k = d a(b x A x ) + b(b y A y ) + c(b z A z ) 2 n h n v P ( 10) n h n v P Q (5) (6),(7) n! v n! h 10 0 P Q nh W (6) 0 P Q nv H (7) P!!!"! PQ n h W Q!!!"! PQ n v H 5. 12 13 (1) (2) 3 250cm 3 140cm 100cm 250cm 180cm 140cm 250cm c 2014 Information Processing Society of Japan 5

140cm 13 100cm 180cm 140cm N(0, 1) X k k A, B A = (A x + kx, A y + kx, A z + kx) (8) B = (B x + kx, B y + kx, B z + kx) (9) X N(0, 1) k 20 14 1 60mm 200mm 60% 2 140mm 1 制御成功率 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 パターン 1 (140cm 100cm) パターン 2 (180cm 140cm) 0 50 100 150 200 250 300 ノイズ強度 k (mm) 6. 2 25540031 [1]. SLDM,[ LSI ] Vol. 2011, No. 30, pp. 1 6 (2011). [2]. C, = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society Vol. 130, No. 4, pp. 676 685 (2010). [3] Jing, L., Zhou, Y., Cheng, Z. and Huang, T.: Magic ring: A finger-worn device for multiple appliances control using static finger gestures, Sensors, Vol. 12, No. 5, pp. 5775 5790 (2012). [4] ( & Vol. 1 No. 1) Vol. 2011, No. 2, pp. 22 27 (2012). [5] Glamo: iremocon, http://i-remocon.com. 14 c 2014 Information Processing Society of Japan 6