-
公开(公告)号：US20230412286A1
公开(公告)日：2023-12-21
申请号：US18459865
申请日：2023-09-01
Inventor： Hiroshi TAKAHASHI , Naganori SHIRAKATA , Tomohiro MURATA , Koji TAKINAMI , Yohei MORISHITA , Mei OKAMOTO
Abstract: In a radio network system containing a first radio apparatus that performs central control and a second radio apparatus, the second radio apparatus receives a first signal containing first identification information indicating a transmission source during a first reception period, receives a second signal containing second identification information indicating a transmission source during a second reception period, measures first reception information on reception of the first signal, measures second reception information on reception of the second signal, and transmits first measurement information containing the first reception information and the first identification information and second measurement information containing the second reception information and the second identification information to the first radio apparatus. When the first identification information and the second identification information are the same, the first radio apparatus compares the first reception information and the second reception information to determine whether a radio apparatus in an abnormal condition is present.
-
公开(公告)号：US20240019575A1
公开(公告)日：2024-01-18
申请号：US18356012
申请日：2023-07-20
Inventor： Yohei MORISHITA , Tomohiro MURATA , Naganori SHIRAKATA , Koji TAKINAMI , Mei OKAMOTO
CPC classification number: G01S17/04 , B65G43/00 , B65G2203/042
Abstract: This sensor includes: a sensing circuit for detecting an object moving along a path; a receiving circuit for receiving, from other sensors that have detected the object, identification information for the other sensors; and a control circuit for causing a storage circuit to store the most recently received identification information for another sensor in response to the detection of the object by the sensing circuit.
-
公开(公告)号：US20240401956A1
公开(公告)日：2024-12-05
申请号：US18690174
申请日：2022-03-15
Inventor： Mei OKAMOTO , Naganori SHIRAKATA
IPC: G01C21/20 , G06F40/40 , G06Q10/0631
Abstract: This path generation and display device is provided with: an extraction circuit that generates a first movement path taken by each of one or more workers from time-series data of position information indicating that the one or more workers performed work in a plurality of processes, and extracts behavioral characteristics associated with the times and processes for the movement path; a processing circuit that generates a second movement path to be recommended to the one or more workers, on the basis of the first movement path and the behavioral characteristics; and a monitor that displays the second movement path.
-
Patent Agency Ranking
公开(公告)号：US20240163645A1
公开(公告)日：2024-05-16
申请号：US18576283
申请日：2022-03-17
Inventor： Naganori SHIRAKATA , Mei OKAMOTO
IPC: H04W4/029
CPC classification number: H04W4/029
Abstract: This learning device is provided with: collection circuits (105, 106) for collecting step operation information indicating the operational state of each step, and reception level information that includes a reception level of a signal received by a first wireless station (104) from each of second wireless stations (103-1 to 103-3) installed for each step; and a learning circuit (108) for using teaching data formed of the step operation information and the reception level information linked to each other for each step to cause a generation model for estimating the operational state of a third wireless station (102) to learn.
-
公开(公告)号：US20230231635A1
公开(公告)日：2023-07-20
申请号：US18189535
申请日：2023-03-24
Inventor： Mei OKAMOTO , Naganori SHIRAKATA , Tomohiro MURATA , Hiroshi TAKAHASHI , Yohei MORISHITA
IPC: H04B17/27 , H04B17/318 , G01S5/02
CPC classification number: H04B17/27 , H04B17/318 , G01S5/02525
Abstract: A mobile radio apparatus transmits to a plurality of fixed radio apparatuses, a fingerprint that indicates a reception strength distribution of radio signals from the plurality of fixed radio apparatuses. Each of the plurality of fixed radio apparatuses in which a learning model is installed inputs the fingerprint to the learning model and transmits a degree of proximity of the mobile radio apparatus output from the learning model to another one or more of the plurality of fixed radio apparatuses, and determines a position of the mobile radio apparatus, based on a first degree of proximity output from the learning model and a second degree of proximity received from the other one or more of the plurality of fixed radio apparatuses.
-
公开(公告)号：US20220361139A1
公开(公告)日：2022-11-10
申请号：US17842332
申请日：2022-06-16
Inventor： Mei OKAMOTO , Naganori SHIRAKATA
IPC: H04W64/00
Abstract: Provided is a position estimation method for a stationary radio device, the method including: calculating a first similarity between a first fingerprint measured by the stationary radio device at a first timing and a second fingerprint measured by a mobile radio device at a second timing and transmitted from the mobile radio device; receiving, from another stationary radio device, a second similarity between a third fingerprint measured by the other stationary radio device at the first timing and the second fingerprint; and determining, a position of the mobile radio device based on a comparison result between the first similarity and the second similarity.
-
公开(公告)号：US20210409909A1
公开(公告)日：2021-12-30
申请号：US17472341
申请日：2021-09-10
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
Inventor： Yohei MORISHITA , Junji SATO , Naganori SHIRAKATA , Hidekuni YOMO , Kenta IWASA , Kazuma NISHIYASU , Mei OKAMOTO
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.
-
-
-
-
-
-
-
Search Results
8
records
(took 0.018 seconds)
