公开(公告)号：US20220159546A1

公开(公告)日：2022-05-19

申请号：US17590671

申请日：2022-02-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Naganori SHIRAKATA ,  Kazuma NISHIYASU

IPC: H04W40/22 ,  H04W76/10 ,  H04W40/12

Abstract: This wireless communication system comprises: a first wireless node; a second wireless node that transmits a signal to the first wireless node in response to a request from the first wireless node; and a third wireless node that transmits a connection request to the second wireless node in response to reception of the signal. The second wireless node transmits to the third wireless node connection permission for the connection request, and the first wireless node detects the third wireless node by receiving the connection permission.

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.

公开(公告)号：US20210286040A1

公开(公告)日：2021-09-16

申请号：US17337105

申请日：2021-06-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yohei MORISHITA ,  Junji SATO ,  Naganori SHIRAKATA ,  Hidekuni YOMO ,  Kenta IWASA ,  Kazuma NISHIYASU ,  Mei OKAMOTO

IPC: G01S5/02 ,  H04W4/029 ,  G01S11/02

Abstract: Provided is an improved estimation and identification device that estimates the position of a plurality of identification targets and identifies the plurality of identification targets. The estimation and identification device has a configuration comprising: a plurality of tracking devices that emit electromagnetic waves or sound waves and detect the position of an identification target on the basis of reflected electromagnetic waves or sound waves from the identification target holding a wireless transmission terminal; a plurality of wireless communications devices that wirelessly communicate with wireless communications terminals and receive identification information for the wireless communications terminals from the wireless communications terminals; and an analysis circuit that identifies the identification target and estimates the position of the identification target, on the basis of the results of the wireless communications results, the detected position of the identification target, and the identification information.