Elevator door machine monitoring method, device, system and computer-readable medium and equipment
An elevator door machine and elevator door technology, which is applied in the elevator field, can solve the problem of inability to monitor the running state of the elevator door machine, etc., and achieve a good monitoring effect.
Active Publication Date: 2019-03-19
HITACHI BUILDING TECH GUANGZHOU CO LTD
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[0003] Based on this, it is necessary to provide a method, device and system for monitoring the operating state of the elevator door machine to solve the problem that the operating state of the elevator door machine cannot be directly monitored.
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[0025] The technical solution of the present invention will be described below in conjunction with the accompanying drawings.
[0026] Such as figure 1 As shown, the present invention provides a method for monitoring the operating state of an elevator door machine, which may include the following steps:
[0027] S1, acquire several frames of depth images of the elevator sill relative to the upper middle position of the elevator door frame;
[0028] A depth image, also known as a range image, refers to an image that takes the distance (depth) from the image collector to each point in the scene as the pixel value, and it directly reflects the geometry of the visible surface of the scene. . The depth image can be calculated as point cloud data after coordinate conversion, and the point cloud data with rules and necessary information can also be back-calculated as depth image data. In the image frame provided by the depth data stream, each pixel represents the distance from the...
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The invention relates to an elevator door machine running state monitoring method, device and system. The method comprises the following steps of obtaining several frames of depth images of an elevator sill relative to the middle of the upper portion of a door frame of an elevator door; calculating the running distance of an elevator door machine of two adjacent frames of images in a time interval according to the pixel point width between adjacent sill pixel points on the depth images and the number of the change of the sill pixels in the two adjacent frames of the depth images, calculating the running speed of the elevator door machine according to the running distance and the frame rate of a depth camera for shooting the depth images, and calculating the current door-open width of the elevator door according to the number of the pixel points of the elevator sills in the door-open-close direction in the depth images and the pixel point width; monitoring the running state of the elevator door machine according to the running speed and the current door-open width.
Description
technical field [0001] The invention relates to the technical field of elevators, in particular to a method, device and system for monitoring the running state of an elevator door machine. Background technique [0002] Elevator is a means of transportation that solves vertical transportation and is closely related to people's daily life. Van elevator is a common elevator. In order to ensure the safe operation of the elevator, it is necessary to detect the operating state of the elevator. One of the important detection contents is the operating state of the elevator door. At present, the operating state of the elevator door is not directly detected, only by detecting the parameters of the motor. Indirectly judge the operation of the door. The door machine controller can only control the operation of the motor. From the motor movement to the elevator door movement, it needs to go through many transmission parts such as rollers and belts. Any bad transmission part will lead to...
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IPC IPC(8): B66B3/00B66B5/00
CPCB66B3/00B66B5/0031
Inventor 陈刚黄立明刘贤钊仲兆峰薄明心李基源
Owner HITACHI BUILDING TECH GUANGZHOU CO LTD