JPH1160132A - Safety device for man conveyor - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a man-conveyor safety device provided with a guide for calling attention to a danger state of a man-conveyor and a function of stopping the man-conveyor. In a safety device of a man-conveyor, detecting means (6, 72, 73) for detecting a sign of a dangerous state, and guiding means (74, 8,) for giving a guidance to call attention when the sign of a dangerous state is detected. 9 or a stop means 76 for stopping the man conveyor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety device for a man conveyor, and more particularly, to a safety device for a man conveyor which detects various signs of a dangerous state of the man conveyor, and guides and stops the man conveyor based on the sign. .

[0002]

2. Description of the Related Art Some conventional conveyor safety devices stop a man conveyor after guiding predetermined contents. For example, Japanese Patent Application Laid-Open No. 4-277 discloses a first prior art.
As described in Japanese Patent No. 191, there is a device that detects a load current of an escalator, broadcasts the content of suppressing the entry when the load is lightly overloaded, and broadcasts that the escalator is stopped when the load is heavy.

As a second prior art, Japanese Utility Model Application Laid-Open No.
As described in Japanese Patent Publication No. 80777, after the safety switch of the escalator is operated, the escalator is immediately stopped if it is related to the safety of the passenger, and if the machine is out of order, the stop is broadcasted to the passenger. There is something to stop at.

[0004]

In the case of the first prior art, an object of the present invention is to minimize the interruption of the operation of the escalator due to excessive passengers, and to stop the man conveyor due to factors other than excessive ride. Even if necessary, it was not possible to broadcast the content to be stopped.

Further, in the case of the second prior art, when the safety switch provided on the man conveyor is operated, the broadcast is performed and the man conveyor is stopped, and when the safety switch is not operated, an accident occurs. Even if there was a sign, it was not possible to broadcast the stop and stop of the conveyor.

[0006] In view of the problems of the prior art and the like, the present invention
It is an object of the present invention to provide a safety device for a man conveyor that detects a sign of a man conveyor accident and guides the user to stop the man conveyor before stopping the man conveyor.

[0007]

In order to solve the above-mentioned problems, the present invention employs the following means.

In a safety device for a man conveyor, either a detecting means for detecting a sign of a dangerous state, a guiding means for giving a guidance to call attention when the sign of a dangerous state is detected, or a stopping means for stopping the man conveyor. Or one of them.

In a safety device for a man conveyor,
Detecting means for detecting a sign of a dangerous state; guiding means for providing a guidance for calling attention when the sign of the dangerous state is detected; and elapse of the predetermined time when the detection of the sign of the dangerous state continues for a predetermined time. And stopping means for stopping the man conveyor later.

[0010] Further, in the safety device for a conveyer according to any one of claims 1 and 2, the sign of the danger state is such that the passenger gets out of the man conveyor and enters the vehicle. Vehicle, passengers are hanging out near the entrance of the conveyor, passengers are moving in the opposite direction to the traveling direction of the conveyor, passengers fall on the conveyor or near the entrance. Or at least one of a state in which the passenger has made a sudden movement such as jumping on a man conveyor.

Further, in the safety device for a man conveyor according to any one of claims 1, 2 and 3, the detecting means for detecting the sign of the danger state includes a man conveyor and the man conveyor. The present invention is characterized in that a sign of a dangerous state is detected from an image obtained by photographing the surrounding situation.

[0012] Further, in the safety device for a man conveyor according to any one of claims 1, 2, 3, and 4, the guide means for giving a guide for calling attention is provided by: When guidance as a safety device for a man conveyor is not performed, information other than guidance as a safety device for a man conveyor is provided.

[0013] In the safety device of a man conveyor according to any one of claims 1, 2, 3, 4, and 5, the sign of the dangerous state is detected. Storage means for storing a state of the man conveyor and its surroundings from a point in time when the emergency stop signal is output to a point in time before or after a predetermined time.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a block diagram showing an overall configuration of a safety device for a man conveyor according to this embodiment.

In FIG. 1, 1 is a handrail of a man conveyor, 2 is a step of a man conveyor, and 3 is a step 2
, A gear rotated by the motor, 4 is a motor driven by a drive signal from the control unit, and 5 is a control unit for controlling the motor 4.

Reference numeral 6 denotes a photographing means including a device such as a camera for photographing the situation of the man conveyor and its surroundings and transmitting the photographed data to the safety device.

7 determines whether or not a sign of a dangerous state that may lead to a dangerous state in the man conveyor and its surroundings has occurred. If it is determined that a sign has occurred, a display is displayed. This is a safety device that stops the man-conveyor after guiding the stop of the man-conveyor by the display means 8 including a container or the audio output means 9 including a speaker or the like. In addition, the safety device 7 may provide guidance for caution before guiding the stoppage of the conveyor, or may provide guidance for attention only and does not need to stop the conveyor.

Here, the sign of the danger state may be, for example, a case where a passenger gets on the body outside the escalator and gets caught between the up and down escalators, A child is playing near the entrance of the conveyor and there is a danger that part of the body or clothing may be pulled in between the steps of the man conveyor and the floor, or when the passenger moves in the opposite direction to the traveling direction of the man conveyor. And
There is a possibility of causing a falling accident, a passenger falling on the conveyor or near the entrance, or a sudden movement of the passenger, such as jumping on the conveyor, may stop the conveyor. This is the case.

The safety device 7 is composed of a computer. The input / output unit 71 serving as an interface with other devices and the image data sent from the photographing means 6 are image-processed by the next image recognition unit. The image processing unit 72 for processing the image data for use in the determination processing of the above, and a sign of a danger state occurs in the situation of the man conveyor and its surroundings based on the image data processed by the image processing unit 72. If it is determined that there is a signal, an image recognition unit 73 that performs various determination processes for outputting a guide signal or a stop signal of a conveyor, and the display unit 8 or the audio output unit according to the determination process of the image recognition unit 73. 9, a measuring unit 75 that measures a predetermined elapsed time from the time when the guiding unit 74 starts guiding, and transmits a measurement result to the image recognizing unit 73; When the predetermined elapsed time is measured, the stop unit 76 that transmits a stop signal for stopping the man conveyor to the control unit 5, and the time when the stop signal is output as a starting point, and a predetermined time before or after that time. The storage unit 77 is provided for storing image data of the man conveyor and its surroundings for a predetermined time.

Although not shown, the storage unit 77 further includes an emergency stop signal from a handrail entrance / exit safety device, a drive chain disconnection safety switch, a step chain disconnection safety switch, a skirt guard safety device, or the like. The image data of the man conveyor and its surroundings for a predetermined time before or after the time when the is output as a starting point may be stored.

Further, in the present embodiment, the escalator has been described as an example of the man conveyor, but the same function as in the present embodiment can be realized also in the case of an automatic line. Next, a processing procedure in the safety device 7 shown in FIG. 1 will be described with reference to flowcharts shown in FIGS. In the following description, step 1 in the flowchart is abbreviated as S1.

FIG. 2 is a flowchart of a part related to the guide part 74, the measuring part 75, and the stop part 76 of the safety device 7.

In step 1, the image data photographed by the photographing means 6 is processed by the image processing section 72 and sent to the image recognition section 73 as image data. In step 2,
The image recognizing unit 73 compares the image data with a predetermined reference to determine whether a sign of a dangerous state has occurred.
If it is determined that there is no sign of danger,
As shown in step 3, a mode for guiding general information is set. Here, the general information is, for example, guidance of an event to be held when a man conveyor is installed in a department store. If it is determined in step 2 that a sign of a danger state has occurred, in step 4, the guide unit 73 outputs a guide signal to the display unit 8 or the voice output unit 9 to provide guidance for calling attention. next,
In step 5, after the above-mentioned warning is given,
The measurement of the predetermined time is performed by the measuring unit 75, and in Step 6, it is determined whether or not the occurrence of the danger state has continued even after the measurement of the predetermined time, and the danger state has already disappeared. If yes, the process as a safety device ends. If it is determined in step 6 that the danger state sign continues to be generated, in step 7, the guide unit 74 informs the display unit 8 or the audio output unit 9 to stop the man conveyor. Outputs a guidance signal. Next, in step 8, a stop signal for stopping the man conveyor is output to the stop unit 76.

FIG. 3 is a flowchart of a part related to the storage unit 77 of the safety device 7.

First, in step 11, it is determined whether or not there is free space in the storage capacity. If there is no free space in the storage space, a process of deleting the oldest image data is performed in step 12, and the storage capacity is secured. Is done. Next, in step 13, the image data of the situation of the conveyor and its surroundings is stored. Next, in step 14, if no sign of a dangerous state is detected based on the determination as to whether or not the sign of a dangerous state is detected in the image recognition unit 73, the processing from step 11 is repeated. If a sign of a dangerous state is detected, an image storage process described below is performed in step 15.

There are the following three types of image storage processing methods.

In the first method, when a sign of a danger is detected and a stop signal or an emergency stop signal is output,
The storage of the new image data is stopped, and the storage of the image data is stopped until a maintenance person or a building manager operates. With this configuration, all of the image data stored before the stop signal is output can be saved.

According to the second method, an area for storing image data of the situation of the man conveyor and its surroundings is divided into an area 1 for constantly storing and an area 2 for storing a predetermined time. In the area 1, captured image data is always stored, and when the storage capacity runs out, the oldest image data is updated to new image data. The area 2 extracts image data for a predetermined time before the stop signal and the emergency stop signal are output from the area 1 and stores the image data. With this configuration, the image data stored before the stop signal is output can be stored for a predetermined time.

A third method is to store an area for storing image data indicating the situation of the conveyor and its surroundings in an area 1 for constantly storing an area 2 and an area 2 for storing a predetermined time.
Divided into In the area 1, photographed image data is always stored, and when the storage capacity becomes full, the oldest image data is updated to new image data. The area 2 stores image data for a predetermined time after the stop signal and the emergency stop signal are output. With this configuration, it is possible to save image data for a predetermined time after the stop signal is output.

Which method is to be adopted can be arbitrarily selected according to the situation required as a safety device for each of the conveyors.

[0032]

As described above, according to the present invention, it is possible to detect a sign of a dangerous state of a man conveyor, and to guide the user to stop the man conveyor in advance when stopping the man conveyor. Can be stopped. In addition, when a sign of danger is detected from the man conveyor and its surroundings, the situation is stored up to a specified time before or after the specified time starting from that point. Can be easily verified from the stored data.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration of a safety device for a man conveyor according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a processing procedure of the safety device 7 shown in FIG.

FIG. 3 is a flowchart showing a processing procedure of the safety device 7 shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Handrail of man-conveyor 2 Step of man-conveyor 3 Gear 4 Electric motor 5 Control part 6 Imaging means (camera etc.) 7 Safety device 71 Input-output part 72 Image processing part 73 Image recognition part 74 Guide part 75 Measurement part 76 Stop part 77 Storage unit 8 Display means (display etc.) 9 Audio output means (speaker etc.)

Claims (6)

[Claims] A detecting means for detecting a sign of a dangerous state; a guiding means for providing a guidance to call attention when the sign of a dangerous state is detected; or a stopping means for stopping the man conveyor. A safety device for a man conveyor, comprising: 2. A safety device for a man-conveyor, comprising: a detecting means for detecting a sign of a dangerous state; a guiding means for giving a guidance to call attention when the sign of the dangerous state is detected; And stopping means for stopping the conveyor after the predetermined time has elapsed if the detection continues for a predetermined time. 3. The sign of any one of claims 1 and 2, wherein the sign of the danger state is a state in which the passenger is leaning on the body outside the man conveyor and riding. Is hanging around the entrance of the conveyor, the passenger is moving in the direction opposite to the traveling direction of the conveyor, the passenger falls on the conveyor or near the entrance,
A safety device for a man conveyor, wherein the safety device is at least one of a state in which a passenger suddenly moves such as jumping on a conveyor. 4. The apparatus according to claim 1, wherein the detecting means for detecting the sign of the danger state captures an image of the situation of the man conveyor and its surroundings. A safety device for a man conveyor, which detects a sign of a dangerous state from an image. 5. The maneuvering device according to any one of claims 1, 2, 3 and 4, wherein the guide means for giving a warning for attention is provided as a safety device for the man conveyor. A safety device for a man-conveyor, which provides information other than guidance as a safety device for a man-conveyor when guidance is not provided. 6. The signal according to any one of claims 1, 2, 3, 4 and 5, wherein a time point at which a sign of the dangerous state is detected or an emergency stop signal. A safety device for a man-conveyor, comprising: a storage means for storing a state of the man-conveyor and its surroundings up to a predetermined time before or after a time when the is output.