公开(公告)号：US20220005330A1

公开(公告)日：2022-01-06

申请号：US17436029

申请日：2020-02-25

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hisatoshi KASAHARA ,  Norihiro FUJIMOTO ,  Hitoshi MIZUNO ,  Seiya SATO ,  Kazuhiko GOTO

IPC: G08B7/06 ,  H04Q9/00 ,  G01S5/14 ,  G01S5/02

Abstract: An object is to estimate the course of a movable terminal device. An information processing system (S) includes a plurality of transmission devices (1a, 1b) capable of transmitting predetermined radio waves, a terminal device (2) capable of receiving the predetermined radio waves, and a management device (3) communicably connected to the terminal device. The terminal device (2) measures intensities of radio waves received from the transmission devices (1a, 1b) at predetermined times, and transmits measurement results to the management device (3). The management device (3) calculates distances between the terminal device (2) and each of the transmission devices (1a, 1b) at the predetermined times from the measurement results, and calculates positions of the terminal device (2) at the predetermined times from the calculated distances.

公开(公告)号：US20220275598A1

公开(公告)日：2022-09-01

申请号：US17627617

申请日：2019-07-18

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Norihiro FUJIMOTO ,  Yosuke OKAMURA ,  Kazuhiko GOTO

IPC: E02D29/12 ,  F16M13/02

Abstract: Provided are an underground installation support device improving installation workability of a support member supporting an underground installation and a method of manufacturing the support device. A support device 100 according to the disclosure is a support device 100 supporting an underground installation (a communication cable 700) and including a vertical frame member 20 that extends in a substantially vertical direction, lateral frame members 30A and 30B that are attached to the vertical frame member 20 and extend in a substantially horizontal direction, and an installation support member 40 that is attached to the vertical frame member 20 and the support device is disposed on a bottom portion (a bottom wall 505) of an underground cavity (a manhole 500).