JP2022183858A - Walking detector of passenger conveyor, its walking detection method, and passenger conveyor - Google Patents

Abstract

To provide walking detection means that is easy to install in an existing passenger conveyor and easy to maintain and inspect.SOLUTION: A waking detector of a passenger conveyor is installed on a passenger conveyor for transporting a passenger by connecting multiple footsteps endlessly and by continuously moving a chain with a driving device through a driving side terminal gear and a driven side terminal gear, and detects the passenger walking on the footsteps. The walking detector comprises: a driven side terminal gear device supporting the driven side terminal gear in a horizontally movable manner; a tension device provided in the driven side terminal gear device and applying tension to the chain; a rod provided in the tension device; a behavior detection part detecting the behavior of the chain via the tension device and the rod; and an operation part processing a signal detected by the behavior detection part and determining the walking of the passenger based on a walking vibrational component obtained by a frequency analysis.SELECTED DRAWING: Figure 2

Description

The present invention relates to a walking detection apparatus for a passenger conveyor, a walking detection method thereof, and a passenger conveyor, and is suitable for detecting walking of a passenger conveyor such as an escalator or a moving walk (so-called moving walkway). The present invention relates to a device, its walking detection method, and a passenger conveyor.

In Japan, Singapore, etc., accidents caused by walking on passenger conveyors such as escalators and moving walks frequently occur. When a passenger walks on the passenger conveyor, there is an increased risk of falling due to a contact accident with a standing passenger, catching baggage, missing a step, or stumbling.

In recent years, in addition to preventing accidents caused by walking on passenger conveyors, some prefectures and local governments in Japan have been working to spread the correct way of riding on passenger conveyors, "stop without walking", which is friendly to people with disabilities and the elderly. , There is a move to enact an ordinance that obliges people to stop and ride on passenger conveyors.

In view of this situation, there is a demand for measures such as walking detection, alerting, and walking suppression for passenger conveyors such as escalators and moving walkways.

Therefore, as a method of detecting walking on the passenger conveyor, a method of incorporating a sensor in the step is conceivable.

For example, as a prior art document of a method of incorporating a sensor into a step, "Escalator step" described in Patent Document 1 has been published.

In the escalator step of Patent Document 1, the step is provided with a step board on which the user can get on, and is an endless connecting member for the purpose of effectively suppressing the movement of the user on the step. A plurality of steps are used in a state of being connected by a chain, and the steps include a speaker that is an output unit that generates a warning sound each time a specific portion on the steps is stepped on by the user's foot. A movement deterrent device is provided, and the above-step movement deterrent device includes a pressure sensor that can detect that a specific portion on the footboard has been stepped on by the user's foot and outputs a detection signal, and a pressure sensor that outputs a detection signal. is within a predetermined period of time when the portion is continuously stepped on by the user's foot, output section operating means for generating a warning sound from the speaker.

JP 2012-166937 A

However, the structure of the "escalator step" described in the above-mentioned Patent Document 1 requires a walking detection sensor to be installed on each step, so the number of sensors to be installed is large, and it is difficult to incorporate into an existing passenger conveyor. There was a problem that maintenance and inspection were difficult.

The present invention has been made in view of the above-mentioned points, and its object is to provide a walking detection device for a passenger conveyor, a walking detection method therefor, and a passenger conveyor that are easy to install in an existing passenger conveyor and to facilitate maintenance and inspection. That's what it is.

In order to achieve the above objects, a walking detection device for a passenger conveyor according to the present invention connects a plurality of steps in an endless manner, and a driving device continuously moves a chain via terminal gears on the driving side and the driven side. A walking detection device for a passenger conveyor that is installed on a passenger conveyor that conveys passengers by moving the passenger to detect the passenger walking on the step, wherein the walking detection device is configured to horizontally move the driven side terminal gear. A driven side terminal gear device for supporting, a tension device provided in the driven side terminal gear device to apply tension to the chain, a rod provided in the tension device, and a behavior of the chain to the tension device. A behavior detection unit that detects through the device and the rod, and an operation that determines the walking of the passenger based on the walking vibration component of the passenger obtained by processing the signal detected by the behavior detection unit and performing frequency analysis. and a part.

Further, in order to achieve the above object, a method for detecting walking of a passenger conveyor according to the present invention connects a plurality of steps in an endless manner, and connects a chain continuously via a drive-side and driven-side terminal gear by a drive device. A walking detection method for a passenger conveyor for detecting the passenger walking on the steps, wherein the walking detecting device is installed on a passenger conveyor that conveys passengers by moving them by moving the passenger on the driven side. A driven-side terminal gear device for horizontally movably supporting a terminal gear; a tension device provided in the driven-side terminal gear device to apply tension to the chain; a rod provided in the tension device; - a behavior detection unit for detecting the behavior of the passenger through the tension device and the rod; a calculation unit for determining walking of the passenger, extracting the walking vibration component of the passenger based on the behavior information of the chain detected by the behavior detecting unit, and extracting the extracted walking vibration component of the passenger. is equal to or greater than a predetermined threshold value of the walking vibration component, it is determined that the passenger is walking, and the calculating unit detects the passenger walking on the steps.

Further, in order to achieve the above object, a method for detecting walking of a passenger conveyor according to the present invention connects a plurality of steps in an endless manner, and connects a chain continuously via a drive-side and driven-side terminal gear by a drive device. A walking detection method for a passenger conveyor for detecting the passenger walking on the steps, wherein the walking detecting device is installed on a passenger conveyor that conveys passengers by moving them by moving the passenger on the driven side. A driven-side terminal gear device for horizontally movably supporting a terminal gear; a tension device provided in the driven-side terminal gear device to apply tension to the chain; a rod provided in the tension device; - a behavior detection unit for detecting the behavior of the passenger through the tension device and the rod; a first step (S1) of reading a signal from the behavior detection unit by the calculation unit; A second step (S2) of removing with a pass-pass filter, a third step (S3) of frequency-analyzing the signal after passing through the low-pass filter, and acquiring a frequency spectrum with the computing unit (S3); A fourth step (S4) of comparing the previously acquired frequency spectrum when no walking is performed and the currently acquired frequency spectrum in the computing unit to determine whether or not the frequency component of the walking frequency band appears with a signal strength above a certain level. and a fifth step (S5) in which it is determined that the passenger is walking when the frequency component of the walking frequency band is equal to or higher than a certain level, and the warning unit installed on the passenger conveyor is activated, After the fifth step (S5), the process returns to the first step (S1).

Further, in order to achieve the above object, the passenger conveyor of the present invention comprises a plurality of steps that are endlessly connected and circulating, a chain that connects the plurality of steps and that circulates, and the chain. and a walking detection device for detecting the passenger walking on the step, wherein the walking detection device has the above configuration. It is characterized by being a walking detection device for a passenger conveyor.

ADVANTAGE OF THE INVENTION According to this invention, there exists an effect that it is easy to incorporate into the existing passenger conveyor, and to carry out maintenance inspection.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram showing an escalator, which is one of passenger conveyors, to which Embodiment 1 of the walking detector for a passenger conveyor of the present invention is applied; FIG. 2 is a schematic configuration diagram showing a walking detection device employed in the escalator of FIG. 1; 3 is a top view of FIG. 2; FIG. 1 is a block diagram showing a system for detecting walking in Example 1 of a walking detecting device for an escalator, which is one of the passenger conveyors of the present invention; FIG. FIG. 3 is a flow chart showing walking detection in a walking detection method for an escalator, which is one of the passenger conveyors of the present invention. FIG. 5 is a diagram showing time-series data of an output signal of a behavior detection unit when walking on an escalator in the walking detection method for an escalator, which is one of the passenger conveyors of the present invention. It is the figure which compared the frequency spectrum which carried out the frequency analysis of the time series data of FIG. 6, and the frequency spectrum in a state without a pedestrian.

Hereinafter, the walking detection apparatus for a passenger conveyor, the walking detection method thereof, and the passenger conveyor of the present invention will be described based on the illustrated embodiments. In addition, in each figure, the same code|symbol is attached|subjected to the same structure, and when description overlaps, the description may be abbreviate|omitted. In addition, the various constituent elements of the present invention do not necessarily have to be independent entities, and one constituent element may consist of a plurality of parts, a plurality of constituent elements may consist of one part, a certain constituent element is part of another component, part of one component overlaps part of another component, and so on.

FIG. 1 shows an escalator 1, which is one of passenger conveyors, to which Embodiment 1 of the walking detector for a passenger conveyor of the present invention is applied.

As shown in FIG. 1, the escalator 1 of this embodiment includes an entrance floor 12 and an exit floor 13 for getting on and off of a passenger 2 standing on a step 5 or a passenger 3 walking on the step 5, and an exit floor 13. An escalator frame 14 supported across an entrance floor 12 and an exit floor 13, a plurality of steps 5 having treads on their upper surfaces and being endlessly connected and circulating, and standing on both sides of the treads 5 in the moving direction. It is roughly composed of a balustrade 11 provided and a handrail 4 which is guided by the peripheral edge of the balustrade 11 to move.

A plurality of steps 5 are connected endlessly to a chain 8, and guided by a guide rail (not shown) provided on the escalator frame 14 to circulate. The chain 8 straddles the drive-side terminal gear 6 pivotally supported on one longitudinal side of the escalator frame 14 and the driven-side terminal gear 101 pivotally supported on the other longitudinal side of the escalator frame 14 . is wrapped around. The drive-side terminal gear 6 is driven by a drive device 7 installed in the vicinity thereof, and the handrail 4 is also driven by the power of the drive device 7 in synchronism with the steps 5 .

In this embodiment, a walking detection device 100 for detecting passengers 3 walking on steps 5 is installed on the driven side (downstream side) of the escalator 1 . Reference numeral 9 denotes a control panel for controlling the driving device 7 and the like.

Details of the walking detection device 100 described above will be described with reference to FIGS. 2 and 3. FIG.

As shown in FIGS. 2 and 3, the walking detection device 100 includes a driven side terminal gear device 102 which supports a driven side terminal gear 101 so as to be horizontally movable, and a driven side terminal gear device 102 provided with a chain. 8, a rod 104 provided in the tension device 103, and a behavior detection unit attached to the rod 104 to detect the behavior of the chain 8 via the tension device 103 and the rod 104. 105, and a calculation unit 106 that processes the signal detected by the behavior detection unit 105 and determines the walking of the walking passenger 3 based on the walking vibration component of the walking passenger 3 obtained by frequency analysis. It is roughly composed of Reference numeral 109 denotes a driven side terminal gear shaft.

Then, the above-described calculation unit 106 extracts the walking vibration component of the walking passenger 3 based on the behavior information of the tension device 103 detected by the behavior detection unit 105, and extracts the extracted walking passenger 3 When the walking vibration component is greater than or equal to a predetermined walking vibration component threshold value (when the walking determination threshold value (A) in FIG. 7 is exceeded), it is determined that there is a walking passenger 3, and the step 5 on the It detects the passenger 3 who is walking.

In addition, the escalator 1 is provided with a warning unit 110 including a speaker 10 and the like. When this happens, the attention calling part 110 operates and the speaker 10 sounds to call the attention of the walking passengers 3. - 特許庁

The behavior detector 105 described above comprises at least one of an acceleration sensor and a displacement sensor, is attached to the rod 104 , and detects the behavior of the chain 8 from the acceleration or displacement of the chain 8 . In addition, when the behavior detection unit 105 is a displacement sensor, it may be attached to the tip of the rod 104 .

Further, the walking detection device 100 described above incorporates a safety device for stopping the escalator 1 when the chain 8 breaks.

This safety device is composed of a safety switch 107 and two hinges 108 provided to sandwich the safety switch 107. When the chain 8 breaks, the driven side terminal gear device 102 is a tension device. The escalator 1 is pulled by 103 toward the safety switch 107, and the safety switch 107 and one of the kicking metal fittings 108 come into contact with each other, thereby activating the safety device and stopping the escalator 1.

Next, a system configuration for detecting walking in the first embodiment of the walking detection device 100 for the escalator 1 of the present embodiment will be described with reference to FIG.

As shown in FIG. 4, the signal acquired by the behavior detection unit 105 (signal containing the passenger's walking vibration component) is input to the calculation unit 106 such as a microcomputer, and the calculation unit 106 performs signal processing in the signal processing unit 106a. The frequency is analyzed by the frequency analysis unit 106b, and based on the frequency analysis, the walking determination unit 106c determines that the passenger 3 is walking. In response to the walking determination result of the calculation unit 106, the attention calling unit 110 operates and the speaker 10 sounds to call the attention of the passenger 3 who is walking.

Next, a walking detection method using the walking detection device for the escalator 1 of the present embodiment and a flow of alerting will be described with reference to FIGS. 5, 6 and 7. FIG.

FIG. 5 is a flowchart showing walking detection in the walking detection method for the escalator 1 of this embodiment, and FIG. 6 shows the output of the behavior detection unit when walking on the escalator 1 in the walking detection method for the escalator 1 of this embodiment. FIG. 7 is a diagram showing time-series data of a signal, and FIG. 7 is a diagram comparing the frequency spectrum obtained by frequency-analyzing the time-series data of FIG. 6 and the frequency spectrum without pedestrians.

The walking detection method using the walking detection device for the escalator 1 of the present embodiment includes a first step ( S1), a second step (S2) of removing the high-frequency component of the signal read by the calculation unit 106 with a low-pass filter in the calculation unit 106, and a frequency analysis unit for the signal after passing through the low-pass filter A third step (S3) of analyzing in 106b and acquiring the frequency spectrum by the computing unit 106, and comparing the previously acquired frequency spectrum without walking and the currently acquired frequency spectrum by the computing unit 106, A fourth step (S4) of determining whether the frequency component of the walking frequency band shown in FIG. ), it is determined that the passenger is walking, the attention calling unit 110 installed in the escalator 1 (passenger conveyor) is activated, and the fifth step (S5) in which the speaker 10 sounds is performed. After step 5 (S5), the process returns to the first step (S1).

Further, in the fourth step (S4), if the frequency component of the walking frequency band shown in FIG. 7 is below a certain level (if below the walking determination threshold value (A) in FIG. 7), the alerting unit 110 does not operate. Therefore, the speaker 10 does not sound, and the process returns to the first step (S1).

In FIG. 7, the horizontal axis represents the frequency and the vertical axis represents the signal intensity, and shows the specific walking frequency band obtained by frequency analysis of the acquired signal and the signal intensity at that time. A threshold value (walking determination threshold value (A)) is drawn (in the figure, the dotted line indicates the presence of walking, and the solid line indicates the presence of walking).

In FIG. 7, within a specific walking frequency band, low-speed walking is determined when the frequency is the lowest, high-speed walking when the frequency is the highest, and medium-speed walking when the frequency is in the middle. Especially when the frequency is the highest. determines that the passenger is running.

As described above, in this embodiment, since the behavior detection section 105 is provided on the rod 104 of the tension device 103 provided in the driven side terminal gear device 102 which is easily accessible to the construction or maintenance/inspection worker of the escalator 1, It is a closed walking detection method. In addition, since one or two behavior detectors 105 are sufficient for one escalator 1 , incorporation into an existing escalator 1 and maintenance and inspection are easy. Furthermore, since no camera or the like is used, the privacy of passengers is not violated, and the risk of contact between passengers and the exposed behavior detection unit 105 is eliminated by installing the behavior detection unit 105 in a place where passengers cannot directly touch it. can do.

Therefore, according to the present embodiment, there is an effect that it is easy to install in the existing escalator 1 and to perform maintenance and inspection.

Although the escalator 1 has been described as a passenger conveyor in the above-described embodiment, the present invention can be applied not only to the escalator 1 but also to a moving walk (moving sidewalk) to obtain similar effects.

Moreover, the present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments have been described in detail to facilitate understanding of the present invention, and are not necessarily limited to those having all the described configurations. In addition, it is possible to replace part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Moreover, it is possible to add, delete, or replace a part of the configuration of each embodiment with another configuration.

DESCRIPTION OF SYMBOLS 1...Escalator, 2...Standing passenger, 3...Walking passenger, 4...Handrail, 5...Step, 6...Drive-side terminal gear, 7...Drive device, 8...Chain, 9...Control panel, 10 Speaker 11 Balustrade 12 Entrance floor 13 Exit floor 14 Escalator frame 100 Walking detection device 101 Terminal gear on driven side 102 Terminal gear device on driven side 103 Tension device DESCRIPTION OF SYMBOLS 104... Rod, 105... Behavior detection part, 106... Calculation part, 106a... Signal processing part, 106b... Frequency analysis part, 106c... Walking determination part, 107... Safety switch, 108... Hook metal fitting, 109... Driven side terminal gear shaft , 110 . . .

Claims (8)

Installed on a passenger conveyor that conveys passengers by connecting a plurality of steps in an endless manner and continuously moving a chain via a drive-side and driven-side terminal gear by a driving device, the passenger walks on the steps. A walking detection device for a passenger conveyor that detects the passenger,
The walking detection device includes a driven side terminal gear device for horizontally movably supporting the driven side terminal gear, a tension device provided in the driven side terminal gear device for applying tension to the chain, and the tension device. A rod provided in the above, a behavior detection unit that detects the behavior of the chain through the tension device and the rod, and the signal detected by the behavior detection unit is processed and the frequency analysis is performed. A walking detecting device for a passenger conveyor, comprising: a computing unit for determining walking of the passenger based on a walking vibration component of the passenger. A walking detection device for a passenger conveyor according to claim 1,
The computing section extracts the walking vibration component of the passenger based on the behavior information of the tensioning device detected by the behavior detecting section, and the extracted walking vibration component of the passenger is a predetermined walking vibration component. is equal to or greater than a threshold, it is determined that the passenger is walking, and the passenger walking on the steps is detected. A walking detection device for a passenger conveyor according to claim 1,
The passenger conveyor is provided with a warning section, the walking detection device determines that the passenger is walking, and when the passenger walking on the steps is detected, the warning section is activated to A walking detection device for a passenger conveyor, characterized by calling attention to. A walking detection device for a passenger conveyor according to claim 3,
A walking detector for a passenger conveyor, wherein the behavior detector is attached to the rod. A walking detection device for a passenger conveyor according to claim 3,
The passenger conveyor, wherein the behavior detection unit comprises at least one of an acceleration sensor and a displacement sensor, and the sensor detects the behavior from the acceleration or displacement of the driven side terminal gear, the rod, or the tension device. gait detection device. A walking detection device installed in a passenger conveyor that conveys passengers by connecting a plurality of steps in an endless manner and continuously moving a chain via a driving side and a driven side terminal gear by a driving device, A walking detection method for a passenger conveyor for detecting the passenger walking on steps,
The walking detection device includes a driven side terminal gear device for horizontally movably supporting the driven side terminal gear, a tension device provided in the driven side terminal gear device for applying tension to the chain, and the tension device. A rod provided in the above, a behavior detection unit that detects the behavior of the chain through the tension device and the rod, and the signal detected by the behavior detection unit is processed and the frequency analysis is performed. a calculation unit that determines the walking of the passenger based on the walking vibration component of the passenger;
The walking vibration component of the passenger is extracted based on the behavior information of the chain detected by the behavior detection unit, and the extracted walking vibration component of the passenger is equal to or greater than a predetermined threshold value of the walking vibration component. A walking detection method for a passenger conveyer, wherein it is determined that the passenger is walking, and the calculating unit detects the passenger walking on the steps. A walking detection device installed in a passenger conveyor that conveys passengers by connecting a plurality of steps in an endless manner and continuously moving a chain via a driving side and a driven side terminal gear by a driving device, A walking detection method for a passenger conveyor for detecting the passenger walking on steps,
The walking detection device includes a driven side terminal gear device for horizontally movably supporting the driven side terminal gear, a tension device provided in the driven side terminal gear device for applying tension to the chain, and the tension device. A rod provided in the above, a behavior detection unit that detects the behavior of the chain through the tension device and the rod, and the signal detected by the behavior detection unit is processed and the frequency analysis is performed. a calculation unit that determines the walking of the passenger based on the walking vibration component of the passenger;
A first step (S1) of reading a signal from the behavior detection unit by the calculation unit, and a second step (S2) of removing a high frequency component of the signal read by the calculation unit with a low-pass filter in the calculation unit. ), a third step (S3) of frequency-analyzing the signal after passing through the low-pass filter and obtaining a frequency spectrum by the calculation unit, and a pre-obtained frequency spectrum without walking A fourth step (S4) of comparing currently acquired frequency spectrums in the computing unit and determining whether or not the frequency components of the walking frequency band appear with a signal strength above a certain level; In the case of , it is determined that the passenger is walking, and a fifth step (S5) is performed in which the attention calling unit installed on the passenger conveyor is activated, and after the fifth step (S5), the 1. A method for detecting walking of a passenger conveyor, characterized by returning to step 1 (S1). A plurality of steps that are endlessly connected and circulating, a chain that connects the plurality of steps and that circulates, and the chain that continuously circulates through drive-side and driven-side terminal gears. and a walking detection device that detects the passenger walking on the steps,
A passenger conveyor, wherein the walking detection device is the walking detection device for a passenger conveyor according to any one of claims 1 to 5.

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