公开(公告)号：US20220318448A1

公开(公告)日：2022-10-06

申请号：US17639310

申请日：2019-09-03

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Kuniaki TERAKAWA ,  Tomohiro KAWANO ,  Tatsuya FUJIMOTO ,  Kazunori KATAYAMA ,  Tomomi NAGAO

IPC: G06F30/18

Abstract: An object of the present invention is to provide a cable route design method that makes it possible to select a route for routing a communication cable in consideration of an influence of an air-conditioning airflow under a double floor. According to the present cable route design method, cables are routed such that an air-conditioning space under a double floor becomes as uniform as possible, a floor is modeled in a mesh structure, and one of cable routing patterns is applied to each of meshes and an air-conditioning airflow is calculated by a finite volume method, thereby indexing (an evaluation value) an air-conditioning efficiency. This enables comparison between a plurality of cable routing ideas, making it possible to find an optimal routing route.

公开(公告)号：US20220349609A1

公开(公告)日：2022-11-03

申请号：US17760572

申请日：2019-09-25

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Tatsuya FUJIMOTO ,  Tomohiro KAWANO ,  Kuniaki TERAKAWA ,  Kazunori KATAYAMA

IPC: F24F11/64 ,  F24F11/79 ,  F24F13/068

Abstract: An air conditioning system of the present disclosure includes: sensors disposed on a plurality of openings connecting an underfloor space of a double floor and an upper side of the double floor; a wing that is disposed in the underfloor space under the opening and is configured to divert an air flow direction in the underfloor space by changing a slant angle of the wing; and a control device that is configured to acquire ideal values set in a plurality of the sensors, acquire actual measurement values from the plurality of sensors, calculate an average error from a difference between each of the ideal values and each of the actual measurement values, and change the slant angle of the wing to reduce the average error.

公开(公告)号：US20220320846A1

公开(公告)日：2022-10-06

申请号：US17637762

申请日：2019-09-02

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Kuniaki TERAKAWA ,  Tomohiro KAWANO ,  Tatsuya FUJIMOTO ,  Kazunori KATAYAMA ,  Tomomi NAGAO

IPC: H02G3/38 ,  H02G1/00

Abstract: In a block (10) for a cable of the present disclosure, the block has a shape of a rectangular cuboid in which an upper surface (11) and a bottom surface have square shapes, the block has plural bending through holes (21) between one side surface of the rectangular cuboid and a side surface (12) neighboring the one side surface, arrangement of open ends (22) of the plural through holes in the one side surface of the rectangular cuboid is in a lattice manner, the arrangement of the open ends is in line symmetry with respect to a middle line (31) between an upper side and a bottom side of the one side surface and with respect to a middle line (32) between a lateral side and a lateral side of the one side surface, and arrangement of open ends (22) of the plural through holes in the side surface neighboring the one side surface of the rectangular cuboid is the same as the arrangement of the open ends (22) of the plural through holes in the one side surface of the rectangular cuboid.