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Elevator door control device and elevator door control method

A technology of door control and elevator, which is applied in the field of elevator door control, and can solve problems such as deviation of measurement results and inability to detect with high precision

Active Publication Date: 2021-09-14
TOSHIBA ELEVATOR KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the travel resistance measurement is biased each time the door is opened and closed
Therefore, it is not possible to detect the crushing of an object etc. with high precision only by using the measurement result of the traveling resistance

Method used

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  • Elevator door control device and elevator door control method
  • Elevator door control device and elevator door control method
  • Elevator door control device and elevator door control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0021] figure 1 It is a schematic configuration diagram showing the door mechanism of the elevator apparatus according to the present embodiment. Such as figure 1 As shown, the door mechanism is composed of a door 1 , a door opening and closing mechanism 20 , a motor 10 , a speed sensor 11 and a door control device 100 .

[0022] The door 1 is, for example, a sliding door provided in a car of an elevator apparatus. The door 1 is connected to a door opening and closing mechanism 20 . The door opening and closing mechanism 20 is a mechanism constituted by, for example, a plurality of pulleys, a belt wound around the pulleys, and the like. The door opening and closing mechanism 20 converts the rotational force of the motor 10 into a force for opening and closing the door 1 .

[0023] The motor 10 is installed in the car of the elevator apparatus. Based on an instruction from the door control device 100, the motor 10 rotates forward and reverse. The speed sensor 11 is, for e...

Embodiment approach 2

[0059] In the description of Embodiment 1, the case where the threshold value used for detecting the overload state is a constant value has been described. In Embodiment 2, a case where the threshold value is changed and set according to conditions will be described. For the same or equivalent configurations as in Embodiment Mode 1, the same symbols are used, and descriptions thereof are omitted or simplified.

[0060] Such as Figure 8 As shown, the overload detection unit 130 of Embodiment 2 includes a threshold value setting unit 135 . Threshold value setting unit 135 selects and reads a threshold value corresponding to the weight of door 1 , the opening speed or acceleration of door 1 , etc. from a storage unit (not shown), and supplies the threshold value to comparison unit 133 .

[0061] For example, when the threshold is selected with the weight of the door 1 and the opening speed of the door 1 as parameters, the threshold based on the design value constituted by a tw...

Embodiment approach 3

[0067] Even with the same force applied to the human body, bodily injuries are different for adults and young children. In Embodiment 3, a technique for determining a person caught in the door 1 and setting a threshold will be described.

[0068] The door control device 100 includes an imaging device for photographing the door 1 . In addition, the door control device 100 includes identification means for detecting a person stuck by the door from the captured image and identifying whether the detected person is an infant, an adult, an elderly person, further male or female. Known techniques are used for detection technology for detecting people from captured images, and technology for identifying infants, adults, elderly people, males, and females.

[0069] In addition to the parameters such as the weight of the door 1 and the opening speed or acceleration of the door 1 described in Embodiment 2, the door control device 100 also has threshold value data with parameters such as...

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PUM

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Abstract

The present invention provides an elevator door control device capable of detecting with high precision that a person or an object is caught by an elevator door. An elevator door control device according to an embodiment includes: a motor drive unit that drives a motor that drives a door of the elevator to open and close; and an overload detection unit that detects an overload state caused by an object being caught in the door. The overload detection section includes: a door opening force calculation section that calculates a door opening force applied to an object stuck in the door at the time of the door opening action; an impulse calculation section that calculates a total of door opening forces within a preset time; and The comparison unit compares the total of the door opening forces calculated by the momentum calculation unit with a preset threshold, and detects that the door is in an overload state when the total of the door opening forces exceeds the threshold. When the overload detection unit detects that the door is in an overload state, the motor drive unit controls the motor to stop the door opening operation.

Description

[0001] This application is based on Japanese Patent Application No. 2017-235285 (application date: 12 / 7 / 2017), and enjoys priority based on this application. This application incorporates this application in its entirety by reference. technical field [0002] Embodiments of the present invention relate to an elevator door control device and an elevator door control method. Background technique [0003] In an elevator apparatus, when it is detected that a person or an object is caught in a door during the opening and closing operation of the door, the opening and closing operation of the door is temporarily stopped. When a person or object becomes lodged in the door, the resistance to travel increases when the door is operating. Therefore, whether or not an object or the like is pressed against the door is detected based on the value of the traveling resistance. However, the measurement result of the travel resistance varies each time the door is opened and closed. Therefo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B13/26
Inventor 井浦秀保
Owner TOSHIBA ELEVATOR KK