Mitsubishi Electric Corporation

Mitsubishi Electric Research Laboratories, Inc.

Yu Enomoto

Keisuke Sambongi

Ryosuke Kawanishi

Hideki Nakamura

Yuichi Taguchi

Jay E Thornton

Hiroyuki Tsutada

Makito Seki

There is provided a marking positioning device for an elevator which is capable of easily performing marking at a designated position inside a hoistway. The marking positioning device for an elevator includes a body portion that flies inside the hoistway of an elevator, a detecting unit provided at the body portion and configured to detect a position of the body portion inside the hoistway, a measuring unit provided at the body portion and configured to measure a three-dimensional shape inside the hoistway, a marking unit provided at the body portion and configured to perform marking, and a control unit provided at the body portion and configured to control flight of the body portion on the basis of the position detected by the detecting unit so that a position of marking by the marking unit is located at a designated position set in the three-dimensional shape measured by the measuring unit.

Marking positioning device for elevator

Provided is an elevator shaft dimensions measurement device including: a plurality of 3-D distance image sensors which are arranged on a circumference of the same circle, facing the direction of the center of the circle and inclined at an elevation angle with respect to a horizontal plane, and which output measurement data by capturing an image of a pattern irradiated onto the inner walls of an elevator shaft that are imaging objects; and a computer which integrates the measurement data output from the plurality of 3-D distance image sensors at a plurality of height positions in the elevator shaft, generates first integrated measurement data covering 360 degrees in the horizontal direction, aligns the first integrated measurement data to create second integrated measurement data after the alignment, and calculates the dimensions of the elevator shaft on the basis of the second integrated measurement data after the alignment.

Elevator shaft dimensions measurement device and elevator shaft dimensions measurement method

In a three-dimensional scanner, a scanner main body calculates the position and direction of a depth sensor. The scanner main body also determines a movement candidate, which is a candidate for a position and direction to/in which the depth sensor is to be moved next. Then, the scanner main body acquires a feature within the movement candidate, which is the feature observable by the depth sensor from the movement candidate, and evaluates the stability of mapping performed from the movement candidate through use of the feature within the movement candidate. The scanner main body further presents at least any one of the moving direction or moving speed of the depth sensor to a user based on an evaluation result.

Three-dimensional scanner and measurement assistance processing method for same

An elevator hoistway dimension measuring apparatus includes: a base that is mounted to a floor; a first arm that extends in a first direction from the base so as to penetrate inside a hoistway; a pair of second arms that extend from two sides of the base when viewed in the first direction, and that are respectively placed in contact with inner surfaces of a facing pair of jambs of a doorframe; a pair of third arms that extend parallel to the second arms beyond the jambs of the doorframe; and a three-dimensional coordinate measuring machine that is mounted to an end portion of the first arm to measure the hoistway three-dimensionally from inside the hoistway, whereby measuring time is shortened significantly, and safety is also improved.

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Chiyoda-ku, Japan

Yu Enomoto