US 2020/0025553 A1Published application

Sleeve position inspecting device and sleeve position inspecting method

AssigneesSumitomo Mitsui Construction Co., Ltd., Kyushu Univeristy, National University Corporation

InventorsKentaro TOKURA, Naoki NAGAMOTO, Takao KAKEHASHI, Motohiro IKEHARA, Hideaki UCHIYAMA

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Abstract

[Problem] When inspecting whether each sleeve is in the correct position, to alleviate the burden on an operator and reduce the inspection time. [Solution] When an operator captures an image of a reference marker 3 or a sleeve marker 4 using a camera C, the image is sent to a sleeve marker position analyzing means 5 for the position of each sleeve marker 4, . . . to be analyzed. Then, a sleeve marker position assessing means 6 assesses whether the position of each sleeve marker 4, . . . is suitable, by superimposing the resulting analysis data and a BIM model stored in a BIM model storage means 2. Since it is sufficient for the operator to capture an image of the reference marker 3 or the sleeve marker 4 using the camera C, the burden on the operator can be alleviated, and the inspection time can also be reduced.

Claims12

Dependent claims

A sleeve position inspecting device for inspecting a position of at least one sleeve before placing concrete, at least one sleeve being attached to reinforcing bars before placing concrete in order to form a through-hole at a concrete structure, said sleeve position inspecting device comprising:

when a structure comprised of the reinforcing bars and the sleeve before placing concrete is referred to as a reinforcement structure;
a BIM model storage that stores a BIM model of the reinforcement structure or the above-mentioned concrete structure;
a reference marker that is located inside the reinforcement structure or at its neighborhood, and located at a position known by the BIM model;
a sleeve marker that is set on the sleeve in order to measure a position of the sleeve;
a sensing device that senses the reference marker and at least one sleeve marker in this order, and senses the reference marker again after sensing these markers;
a sleeve marker position analyzer that analyzes a position of the sleeve marker that is associated with the reference marker based on data obtained by sensing through the sensing device;
and
a sleeve marker position assessing section that judges whether the position of the sleeve marker analyzed through the sleeve marker position analyzer is correct or not, collating with the BIM model stored in the BIM model storage.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/338,157Filed 4 Oct 2017
Priority: JP 2016-1968945 Oct 2016
Published: 23 Jan 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

E04G 15/061
For cavities or channels in walls of floors, e.g. for making chimneys: non-reusable forms
G01B 11/00
Measuring arrangements characterised by the use of optical techniques
E04G 15/06
Forms or shutterings for making openings, cavities, slits, or channels: for cavities or channels in walls of floors, e.g. for making chimneys
G01B 11/002
Measuring arrangements characterised by the use of optical techniques: for measuring two or more coordinates