Elevator monitoring device and elevator monitoring method

Abstract

The invention provides an elevator monitoring device and method. Images of a camera part arranged downward inclinedly in a cab are processed and judgement of whether the cab is crowd or not is made. The camera part arranged downward in an inclined manner is used for taking pictures in the cab of an elevator. A mark of a known height in the cab is taken as a reference for measuring height of a part of passengers. The passengers are tracked in the cab based on the pictures taken by the camera part. A part of the passengers on the picture is taken as input and a projection position observed from the above of the part of the passengers projected to the ground of the cab from the camera part is calculated. Based on the height of the camera part, the height of a part of the above passengers and a position relation of the camera part and the projection, a standing position of the passengers from the overlook is calculated. Based on the standing position of the passengers, the occupancy of all the passengers in the cab from the overlook is estimated and the crowdness of the cab is judged based on the occupied area.

Description

technical field [0001] The present invention relates to an elevator monitoring device and an elevator monitoring method. Background technique [0002] In an elevator car, a state in which there is no room for congestion due to passengers, luggage, etc. is called a full state. In addition, even if it is not full, the congestion state can be quantified according to the width of the congestion room. Furthermore, Patent Document 1 describes that a camera that looks down directly below is installed on the upper portion or side panel of the car to measure changes in floor area occupied by passengers or luggage (paragraph 0006). In addition, Patent Document 2 describes a device that measures the height of a person when the person is riding on the basis of the image captured by the camera in the car looking down directly below, and corrects the height of the person based on the height of the person. The area where the detected passengers match (paragraphs 0043 to 0049). Also, Pat...

AI Technical Summary

Problems solved by technology

If this method is directly applied to the elevator car, in the car area, which is an area far narrower than the road, the correction accuracy is not sufficient even if a few typical person heights or widths are prepared. In addition, unlike vehicles, , there is a problem that it is difficult to judge which character height or width is better

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