公开(公告)号：US20210356552A1

公开(公告)日：2021-11-18

申请号：US17282497

申请日：2019-10-08

Applicant: NEC Corporation

Inventor： Jun SAKAI

IPC: G01S5/06

Abstract: The present disclosure provides a mechanism for making it possible to efficiently determine an optimal configuration set for one or more sensors for use for estimating the state of an object. Information processing apparatus is provided, which includes an obtaining unit configured to obtain a spatial distribution model of accuracy of estimation related to a state of an object, performed using one or more sensors, a calculation unit configured to calculate a representative statistic for evaluating the accuracy of estimation based on the spatial distribution model obtained, and an optimization unit configured to determine an optimal set of sensor configurations for the one or more sensors based on representative statistics calculated respectively for different sets of sensor configurations for the one or more sensors.

公开(公告)号：US20200370285A1

公开(公告)日：2020-11-26

申请号：US16636982

申请日：2018-08-02

Applicant: NEC CORPORATION

Inventor： Masatake TAKAHASHI ,  Manabu KUSUMOTO ,  Jun SAKAI

IPC: E03B7/07

Abstract: A state analysis device is capable of determining a state of the interior of piping with high precision, and includes: an index calculation means for deriving an index indicating the state of the piping, based on a flow speed of fluid flowing out of the piping, and a fluid pressure of the interior of the piping at two or more locations of the piping; and a determination means for determining the state of the piping, based on the index.

公开(公告)号：US20180292292A1

公开(公告)日：2018-10-11

申请号：US15767389

申请日：2016-11-01

Applicant: NEC Corporation

Inventor： Masatake TAKAHASHI ,  Shin TOMINAGA ,  Jun SAKAI ,  Hirofumi INOUE

IPC: G01M5/00 ,  G01H3/06 ,  G01H3/14 ,  G01M3/18

Abstract: There are circumstances in which estimation of a pipe condition is desired as needs of water utility companies, and thus, an object of the present invention is to provide a technique that can estimate conditions of deterioration or a defect inside and outside a pipe.In order to solve the problem, a pipe condition detection system according to the present invention includes: a sensor unit that detects vibration data and pressure data from a pipe or fluid in the pipe; and a determination unit that determines conditions inside and outside the pipe, based on the vibration data and the pressure data acquired by the sensor unit.