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Safety device for escalator

A technology for escalators and safety devices, applied in escalators, transportation and packaging, image analysis, etc., can solve problems such as false detection, inability to apply escalators, etc., and achieve the effect of high abnormality detection accuracy

Active Publication Date: 2009-03-18
MITSUBISHI ELECTRIC CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the technology disclosed in the above-mentioned JP-H09-301664A has the problem that it cannot be applied to all escalators
[0005] In addition, because the technology disclosed in the above-mentioned JP-2005-8326A only judges the passenger's fall based on the duration of the shading in the photoelectric switch, it is conceivable that sometimes false detections will occur.

Method used

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  • Safety device for escalator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0031] figure 1 A configuration example of the escalator safety device 101 in the above-mentioned embodiment is shown. Here, the escalator 1 is provided with a slope between the lower floor and the upper floor, and the circularly connected steps 1a are circulated along the slope by the drive source 1b to convey passengers riding on the steps 1a. In addition, handrails 1c are erected on both sides of the step 1a.

[0032] The safety device 101 of the escalator 1 having such a structure includes a sensor 111 , a pattern generator 112 , a passenger state judgment unit 120 , and a warning unit 113 as basic components, and preferably further includes a control unit 114 . The safety device 101 having such a structure is a device that performs appropriate warning and operation control according to the state of passengers, such as walking, running, going backwards, falling on the steps 1a, and the degree of congestion near the exit of the escalator. Hereinafter, each of the above-me...

Embodiment approach 2

[0079] Fig. 7 shows an escalator safety device 102 according to Embodiment 2 of the present invention. In the escalator safety device 101 according to Embodiment 1, a row of a plurality of photoelectric sensors 111 is arranged only in the lower stage corresponding to the lower part of the passenger's feet along the running direction 1d of the escalator 1 . On the other hand, in the escalator safety device 102 according to the second embodiment, in addition to the above-mentioned lower photoelectric sensors, the photoelectric sensors are arranged on the upper part corresponding to the upper part of the passenger's feet. The configuration other than the configuration described below is the same as the configuration in Embodiment 1 above, so the description here is omitted. In addition, as the sensor 111, similarly to the case of the first embodiment, a photoelectric sensor is used as an example in this embodiment, but an ultrasonic sensor, a radio wave sensor, etc. may also be u...

Embodiment approach 3

[0091] Figure 9 An escalator safety device 103 according to Embodiment 3 of the present invention is shown. Escalator safety device 103 with figure 1 Compared with the escalator safety device 101 according to Embodiment 1 shown, the boarding position detection unit 160 is newly provided. The photoelectric sensors 111 - 1 to 111 -N are respectively connected to the boarding position detection unit 160 , and the boarding position detection unit 160 uses two pairs of light emitters and light receivers adjacent in the running direction 1d to detect light blocking of a total of four light paths. The output of the boarding position detection unit 160 is connected to at least one of the pattern generation unit 112 and the warning unit 113 described above.

[0092] In addition, the structure in the escalator safety device 103 of Embodiment 3 other than the boarding position detection part 160 comprised in this way is the same as the structure of the escalator safety device 101 in E...

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PUM

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Abstract

The invention provides an escalator safety device which is adapted for all escalators and has high detection precision to abnormal conditions. The escalator safety device of present invention comprises a plurality of photoelectric sensors (111) arranged along traveling direction of the escalator (1); a pattern generator (112) of shading patterns which uses existence or nonexistence of shading of each position of the escalator generated by determining a plurality of sensor output values with certain sampling interval as time series; a passenger state estimation part (120) for outputting walking estimation result (123a), crowding degree estimation result (125a) or fall down sate estimation result (126a) of passengers according to the shading patterns; a warning part (113) for warning passengers according to the estimation result; and a controller (114) for controlling operation of the escalator according to the estimation result.

Description

technical field [0001] The invention relates to a safety device for an escalator that detects the walking, running, retrograde, crowded degree, falling state, etc. of people on the escalator. Background technique [0002] Various safety devices have been proposed conventionally in order to ensure the safety of passengers riding on an escalator, that is, a passenger conveying device. For example, JP-H09-301664A discloses a security device constructed as follows. That is, a monitoring camera is installed on the ceiling above the boarding deck in the escalator, and the overall image of the passengers who get on the escalator is captured by the monitoring camera. The overall image of the passenger is processed and sent to the control device. The control device judges the number of passengers, the dangerous behavior of the passengers, etc. from the image, and notifies appropriate boarding guidance content by voice based on the judgment result. [0003] Also, in JP-2005-8326A, ...

Claims

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Application Information

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IPC IPC(8): B66B29/00G06T7/20
CPCB66B25/003B66B27/00B66B29/00
Inventor 茑田広幸新土井贤平位隆史平井敬秀林健太郎伊藤宽松山二郎塩崎秀树引地刚树
Owner MITSUBISHI ELECTRIC CORP
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