公开(公告)号：US20220330409A1

公开(公告)日：2022-10-13

申请号：US17586615

申请日：2022-01-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Junichi MORITA ,  Naganori SHIRAKATA

IPC: H05B47/19 ,  H04W4/029 ,  H04W64/00 ,  H04W24/08 ,  H04B17/318

Abstract: A position estimation apparatus includes a selection circuit and an estimation circuit. The selection circuit selects at least one radio electronic device as an anchor used for estimating a position of a mobile terminal, based on first information and second information, the first information being related to an arrangement in a first region in which at least one of radio electronic devices including the at least one radio electronic device is arranged, the second information being related to a second region within which the mobile terminal is movable in the first region. The estimation circuit estimates a position of the mobile terminal based on third information related to radio communication quality between the anchor and the mobile terminal and on information related to the anchor in the first information.

公开(公告)号：US20220150669A1

公开(公告)日：2022-05-12

申请号：US17588017

申请日：2022-01-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Junichi MORITA ,  Naganori SHIRAKATA

IPC: H04W4/029 ,  H04B17/318 ,  G01S5/06

Abstract: A selection circuit selects, as anchors, at least two of a plurality of radio electronic devices and updates the selected anchors based on first information and second information, the anchors being used for position estimation for a mobile terminal, the first information being related to an arrangement of the radio electronic devices, the second information being related to a first position resulting from estimation of a position of the mobile terminal, using the selected anchors. A estimation circuit estimates the first position of the mobile terminal based on third information related to radio communication quality between the selected anchors and the mobile terminal and on the first information related to the selected anchors, and estimates a second position of the mobile terminal based on fourth information related to radio communication quality between the updated anchors and the mobile terminal and on the first information related to the updated anchors.

公开(公告)号：US20210409909A1

公开(公告)日：2021-12-30

申请号：US17472341

申请日：2021-09-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroshi TAKAHASHI ,  Mei OKAMOTO ,  Kazuma NISHIYASU ,  Naganori SHIRAKATA ,  Junichi MORITA

IPC: H04W4/029 ,  H04B17/318 ,  H04W4/33

Abstract: This position estimation system comprises a first wireless node for forming a wireless area; second wireless nodes which move within the wireless area; a plurality of third wireless nodes which are provided within the wireless area; and a position estimation device which estimates the position of the second wireless nodes on the basis of information indicating wireless reception quality at the third wireless nodes and the second wireless nodes. The position estimation device determines, for each of section areas, and on the basis of information pertaining to time resource capacity for wireless communication directed towards second wireless nodes, section areas which collect, in place of the first wireless node, information containing wireless reception quality at the second wireless nodes, and transmits, to one of third wireless nodes provided in the determined section area, and instruction to collect wireless reception quality at second wireless nodes within said section area.