公开(公告)号：US20240118152A1

公开(公告)日：2024-04-11

申请号：US17768187

申请日：2019-10-23

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Gen KOBAYASHI ,  Kazuya ANDO ,  Masaki WAKI ,  Ryoichi KANEKO ,  Hiroaki TANIOKA

IPC: G01L5/04 ,  H02G1/02

CPC classification number: G01L5/04 ,  H02G1/02

Abstract: The present invention has an object of providing an arithmetic apparatus, a facility management method, and a program that make it possible to acquire current tension applied to outdoor structures in a short period of time and make a bearing determination. The arithmetic apparatus according to the present invention calculates the dip degree of a cable and a distance between poles from the 3D model data of the cable according to Math. C1 and calculates the tension of each cable between the poles from the dip degree, the distance between the poles, and the weight of the cable per unit length according to Math. C2 (when no wind blows) or Math. C4 (when wind blows). Further, the arithmetic apparatus according to the present invention calculates a combined load obtained by converting the tension and the load of the accessory of the poles into an arbitrary position on the poles according to Math. C3.

公开(公告)号：US20220237335A1

公开(公告)日：2022-07-28

申请号：US17615276

申请日：2019-06-03

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Masaki WAKI ,  Kazuya ANDO ,  Gen KOBAYASHI ,  Ryoichi KANEKO ,  Hiroaki TANIOKA

IPC: G06F30/13 ,  G06F30/23 ,  G06F30/17

Abstract: An object of the present invention is to provide a facility state analysis apparatus, a facility state analysis method, and a program capable of extracting a pole having a high risk without an inspector visiting a site. The facility state analysis apparatus according to the present invention creates a pole model from a material characteristic, dimensions, and a structure model of a pole, highly accurately estimates, by using a finite element method, a facility state such as deflection and an inclination when tension by a separately created cable model is applied to the pole model, and visualizes strength remaining in a facility system.

公开(公告)号：US20220058307A1

公开(公告)日：2022-02-24

申请号：US17413868

申请日：2019-12-03

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Masaki WAKI ,  Hitoshi NIIGAKI ,  Hiroaki TANIOKA ,  Ryoichi KANEKO ,  Gen KOBAYASHI ,  Kazuya ANDO

IPC: G06F30/18 ,  G06T17/05 ,  G01L5/10

Abstract: An object of the present invention is to provide an equipment state detecting device, an equipment state detecting method, and a program that can create a 3D model of a cable based on three-dimensional coordinates acquired using a laser scanner or the like, and precisely estimate the tension for the entirety of the cable even if the entirety of the cable is not three-dimensionally modeled in the cable model. An equipment state detecting device of the present invention creates a 3D model of a cable based on three-dimensional coordinates acquired using a laser scanner or the like, acquires a sag and a straight line connecting ends of the 3D model based on the 3D model, and calculates the tension of the cable using a known cable load per unit length.