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Camera for monitoring escalator and mobile footway

A technology for escalators and moving walkways, applied in the field of cameras, can solve problems such as the inability to guarantee a clear perception of the escalator, the inability of the monitoring system to work correctly, and the confusion of people or objects.

Inactive Publication Date: 2004-05-26
INVENTIO AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The surveillance systems disclosed in JP10236757 and JP10236757 do not work correctly under special lighting conditions and do not guarantee a clear perception of the escalator's empty load
In particular shadows or stains on escalators can sometimes cause confusion with people or objects on the escalator

Method used

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  • Camera for monitoring escalator and mobile footway
  • Camera for monitoring escalator and mobile footway
  • Camera for monitoring escalator and mobile footway

Examples

Experimental program
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Embodiment Construction

[0027] figure 1 A general view of an escalator equipped with the monitoring system of the present invention is shown. On the escalator 1 stands a person 2 who is within the field of view of a pair of cameras 3.1 and 3.2 arranged at slightly different positions above the escalator. These cameras thus obtain stereoscopic images of pairs of escalators.

[0028] Image acquisition is carried out using pairs of cameras, wherein the number nc of cameras required depends on the height H of the steps. An estimate is given by nc=4+H, where H is the height of the escalator. For example, for a staircase spanning four meters in height, four pairs of stereo cameras are required, ie a total of eight cameras.

[0029] For the inner part of the escalator, two cameras with a (nominal) focal length of 6 mm in rotation mode are recommended, i.e. the vertical image stretch is greater than the horizontal image stretch. The entrance areas at the top and bottom of the escalator also require camer...

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PUM

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Abstract

The invention discloses a monitoring system for the detection of obstacles and persons on escalators and / or moving walks comprising at least one video camera, whereby the monitoring system acquires stereoscopic images.

Description

technical field [0001] The invention relates to a camera for monitoring escalators and / or moving walkways. Background technique [0002] Such a monitoring system is disclosed in various embodiments as an escalator start lock or as an escalator restart control. With this monitoring system, the restart of the escalator must be kept locked until there are no persons or objects within the monitoring range of the safety device after active or misoperation activation of an emergency stop or other safety device. [0003] In particular, the standard E115 stipulates the escalator restart control conditions as follows: For safety reasons, escalators used to transport people in railway stations, shopping centers, etc., should be monitored. This monitoring is limited to situations where a safe restart is required when the escalator stops. A safe restart is only possible after repeated detection of the escalator's empty load, ie the absence of persons or obstacles in the moving part of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B31/00B66B27/00B66B29/00
CPCB66B29/005B66B27/00G06V20/52
Inventor 约瑟夫·维辛格迪尔克·布隆迪奥
Owner INVENTIO AG