JP7195750B2 - 位置特定システム、位置特定方法、及びプログラム - Google Patents
位置特定システム、位置特定方法、及びプログラム Download PDFInfo
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Description
1 倉庫
2 棚
3 通路
4 BLEアクティブタグ(位置特定用タグ)
5 収納部
10 フォークリフト(移動体)
11 本体部
12 マスト
13 フォーク(上下動部)
14 BLEアクティブタグ(高さ特定用タグ)
15 重量センサ(荷物保持状態検出器)
20 車載機
21 無線通信部
22 プロセッサ
23 記憶媒体
23a データベース
23b データベース
24 BLE通信部(タグ情報取得部)
30 RFIDリーダ(読取装置)
35 RFIDタグ(受動タグ)
41 搬送対象物特定部
42 移動体位置特定部
43 荷物位置特定部(対象物位置特定部)
50 コンピュータ
51 無線通信部
52 プロセッサ
53 記憶媒体
53a データベース
53b データベース
60 無線ルータ
L 荷物(対象物)
LT 荷物(搬送対象物)
P パレット
Claims (5)
- 屋内に設けられ、予め前記屋内の位置を示す座標情報と対応付けられた位置特定用タグと、
前記屋内を移動する移動体にて当該移動体が搬送する対象物を上下動させる上下動部に設けられる高さ特定用タグと、
前記移動体に設けられ、前記位置特定用タグ及び前記高さ特定用タグが発信する発信信号を取得するタグ情報取得部と、
前記タグ情報取得部が取得した前記位置特定用タグからの発信信号及び前記位置特定用タグに対応づけられた座標情報に基づいて前記移動体の位置を示す座標情報を特定する移動体位置特定部と、
前記対象物の位置を示す座標情報と前記対象物の高さ方向の位置を示す座標情報とを特定する対象物位置特定部と、
を備え、
前記タグ情報取得部は、前記位置特定用タグの発信信号から当該位置特定用タグを識別するタグ識別情報を取得し、当該タグ識別情報に予め関連付けられた前記位置特定用タグの座標情報を取得し、
前記移動体位置特定部は、前記位置特定用タグから送信される発信信号の入射角度と当該位置特定用タグに関連付けられた座標情報とに基づいて前記移動体の位置を示す座標情報を特定し、
前記対象物位置特定部は、前記移動体の位置を示す座標情報に基づいて前記対象物の位置を示す座標情報を特定し、前記高さ特定用タグから送信される発信信号の入射角度に基づいて前記タグ情報取得部と前記上下動部との間の距離との関係から得られる前記高さ特定用タグの高さ方向の位置に基づき、前記対象物の高さ方向の位置を示す座標情報を特定する、
位置特定システム。 - 請求項1に記載の位置特定システムであって、
前記移動体位置特定部は、前記タグ情報取得部が読み取った複数の前記位置特定用タグの位置情報に基づいて前記移動体の位置を示す座標情報を特定する、
位置特定システム。 - 請求項1又は2に記載の位置特定システムであって、
複数の前記対象物に各々設けられる受動タグと、
前記移動体に設けられ、前記受動タグに電波を伝達し前記受動タグから返される反射信号を読み取る読取装置と、
前記移動体が移動したときに前記読取装置が読み取る前記受動タグからの反射信号の状態の変化の違いに基づいて複数の前記対象物から搬送対象物を特定する搬送対象物特定部と、を更に備える、
位置特定システム。 - 屋内に設けられ、予め前記屋内の位置を示す座標情報と対応付けられた位置特定用タグと、前記屋内を移動する移動体にて当該移動体が搬送する対象物を上下動させる上下動部に設けられる高さ特定用タグと、から発信される発信信号を前記移動体に設けられるタグ情報取得部が取得するステップと、
前記位置特定用タグから発信される発信信号及び前記位置特定用タグに対応づけられた座標情報に基づいて前記移動体の位置を示す座標情報を特定するステップと、
前記対象物の位置を示す座標情報と前記対象物の高さ方向の位置を示す座標情報とを特定するステップと、
を含み、
前記取得するステップでは、前記位置特定用タグの発信信号から当該位置特定用タグを識別するタグ識別情報を取得し、当該タグ識別情報に予め関連付けられた前記位置特定用タグの座標情報を取得し、
前記移動体の位置を示す座標情報を特定するステップでは、前記位置特定用タグから送信される発信信号の入射角度と当該位置特定用タグに関連付けられた座標情報とに基づいて前記移動体の位置を示す座標情報を特定し、
前記対象物の位置を示す座標情報と前記対象物の高さ方向の位置を示す座標情報とを特定するステップでは、前記移動体の位置を示す座標情報に基づいて前記対象物の位置を示す座標情報を特定し、前記高さ特定用タグから送信される発信信号の入射角度に基づいて前記タグ情報取得部と前記上下動部との間の距離との関係から得られる前記高さ特定用タグの高さ方向の位置に基づき、前記対象物の高さ方向の位置を示す座標情報を特定する、
位置特定方法。 - コンピュータに、
屋内に設けられ、予め前記屋内の位置を示す座標情報と対応付けられた位置特定用タグと、前記屋内を移動する移動体にて当該移動体が搬送する対象物を上下動させる上下動部に設けられる高さ特定用タグと、から発信される発信信号を前記移動体に設けられるタグ情報取得部が取得する手順と、
前記位置特定用タグから発信される発信信号及び前記位置特定用タグに対応づけられた座標情報に基づいて前記移動体の位置を示す座標情報を特定する手順と、
前記対象物の位置を示す座標情報と前記対象物の高さ方向の位置を示す座標情報とを特定する手順と、
を実行させ、
前記取得する手順では、前記位置特定用タグの発信信号から当該位置特定用タグを識別するタグ識別情報を取得し、当該タグ識別情報に予め関連付けられた前記位置特定用タグの座標情報を取得し、
前記移動体の位置を示す座標情報を特定する手順では、前記位置特定用タグから送信される発信信号の入射角度と当該位置特定用タグに関連付けられた座標情報とに基づいて前記移動体の位置を示す座標情報を特定し、
前記対象物の位置を示す座標情報と前記対象物の高さ方向の位置を示す座標情報とを特定する手順では、前記移動体の位置を示す座標情報に基づいて前記対象物の位置を示す座標情報を特定し、前記高さ特定用タグから送信される発信信号の入射角度に基づいて前記タグ情報取得部と前記上下動部との間の距離との関係から得られる前記高さ特定用タグの高さ方向の位置に基づき、前記対象物の高さ方向の位置を示す座標情報を特定する、
プログラム。
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