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Automatic door installation and method of determining the presence of an obstacle

A technology for automatic doors and obstacles, which is used in the exploration of optical devices, elevators in buildings, door/window accessories, etc., and can solve the problems of complex sensors in automatic door devices.

Active Publication Date: 2017-11-10
ENSOTAGUANGZHOU TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the field of elevators, the adjustment trend of the past few decades is for the smallest object size that should be reliably solved by the sensor to reduce, resulting in an increasing complexity of sensors in automatic door installations

Method used

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  • Automatic door installation and method of determining the presence of an obstacle
  • Automatic door installation and method of determining the presence of an obstacle
  • Automatic door installation and method of determining the presence of an obstacle

Examples

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Embodiment Construction

[0040] figure 1 Shown is an elevator car 10 of an elevator apparatus including a first door 12 and a second door 14 facing each other and configured to move relative to each other in a door opening operation and a door closing operation to Open and close the door opening 16 therebetween. The elevator car 10 has a variable door gap 16 having a maximum value of 2000 mm between the edges of the doors 12, 14 when the doors 12, 14 are in the fully open configuration.

[0041] The optical door sensor is mounted in the elevator car 10 and includes a transmitter array 22 and a receiver array 24 mounted on the edge of the first door 12 along with a processor unit 26 and a transmitter controller 28 On, the receiver array 24 is mounted on the opposite edge of the second door.

[0042] Emitter array 22 includes a plurality of infrared emitters 30 spaced longitudinally. In this example embodiment, there are 37 emitters 30 spaced evenly at 50 mm intervals longitudinally along array 22 su...

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PUM

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Abstract

There is disclosed an automatic door installation 10 comprising: a door opening 16; and an optical door sensor comprising: a plurality of transmitters 30 arranged in a transmitter array 22, each transmitter 30 being configured to transmit an optical beam across the door opening along a respective beam path; a plurality of receivers 32 arranged in a receiver array 24, each receiver 32 being configured to generate a receiver output signal based on an intensity of light received. The plurality of receivers 32 are arranged in at least one set of receivers, the receivers of the or each set being linked so that the respective sensor output signals are combined into a compound signal for the respective set.

Description

technical field [0001] The present invention relates to an optical door sensor, an automatic door arrangement and a method of determining the presence of an obstacle. In particular, the present invention relates to a sensor, device or method in which the presence of an obstacle is determined based on a composite signal associated with a plurality of receivers of a receiver array. Background technique [0002] In typical automatic door installations there may be several sensors configured to detect obstructions, to prevent or stop the door closing operation or to reopen the door. For example, in elevator installations it is common to provide fixed sensors mounted to the elevator car and arranged to project a light curtain (transverse beam array) between the elevator car door and the landing car door. The fixed sensor is configured such that a light curtain interrupted by an obstacle prevents the continuation or initiation of the door closing operation. The fixed sensor typi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/00
CPCB66B5/0006B66B13/26E05F15/43E05F15/74E05F2015/437E05F2015/765G01V8/20
Inventor 彼得·柯林斯约翰·柯曾
Owner ENSOTAGUANGZHOU TECH LTD