JP6786577B2 - Passenger conveyor - Google Patents

Description

An embodiment of the present invention relates to a passenger conveyor.

Passengers walking or running on the steps of passenger conveyors such as escalators and moving walkways are dangerous and need to be warned. Therefore, conventionally, a device for detecting a passenger moving on a step with a camera or a plurality of sensors has been proposed.

JP-A-2010-064821 Japanese Unexamined Patent Publication No. 2012-236660

However, when the movement of a passenger is detected by a camera or a plurality of sensors as described above, there is a problem that the structure becomes complicated and expensive.

Therefore, in view of the above problems, an embodiment of the present invention aims to provide a passenger conveyor that can easily detect passengers moving on steps.

In the embodiment of the present invention, a step traveling in the front-rear direction, a board for getting on and off the step to advance, a pair of left and right skirt garts provided on both the left and right sides of the step, and a pair of left and right skirt guards are erected respectively. A pair of left and right balustrades, a drive device for traveling the steps, a control unit for controlling the operating speed of the steps using the drive device, and a pair of left and right balustrades provided at the entrances and exits of the pair of left and right balustrades. It has a front skirt guard and a speed sensor including one ToF sensor that detects the moving speed of passengers on the step, and the detection range of the speed sensor is the inclination formed by the step-like plurality of steps. The control unit is a passenger conveyor set on a lateral surface along the upper side of the surface , and notifies when the moving speed of the passenger detected by the speed sensor is faster than the operating speed of the step. .. In the embodiment of the present invention, a step traveling in the front-rear direction, a board for getting on and off the step to advance, a pair of left and right skirt garts provided on both left and right sides of the step, and a pair of left and right skirt guards are erected. A pair of left and right balustrades, a handrail belt running on the upper part of the balustrade, a driving device for running the step, and a pair of left and right railing units for controlling the operating speed of the step using the driving device. It has a pair of left and right front skirt guards provided at the entrance and exit of the balustrade, and a speed sensor including one ToF sensor that detects the moving speed of passengers on the step, and the detection range of the speed sensor is The control unit is set to a lateral surface along a surface parallel to the inclination direction of the handrail belt, and the control unit uses the moving speed of the passenger detected by the speed sensor in the detection range as the operating speed of the step. It is a passenger conveyor that notifies when it is faster. In the embodiment of the present invention, a step traveling in the front-rear direction, a board for getting on and off the step to advance, a pair of left and right skirt garts provided on both the left and right sides of the step, and a pair of left and right skirt guards are erected respectively. A pair of left and right balustrades, a drive device for traveling the steps, a control unit for controlling the operating speed of the steps using the drive device, and a pair of left and right balustrades provided at the entrances and exits of the pair of left and right balustrades. It has a front skirt guard and a speed sensor including one ToF sensor that detects the moving speed of passengers on the step, and the detection range of the speed sensor is the central portion of the step and It is set on a vertical surface from the lower floor to the upper floor, and the control unit notifies when the moving speed of the passenger detected in the detection range by the speed sensor is faster than the operating speed of the step. It is a passenger conveyor to do.

The side view of the escalator of Embodiment 1. FIG. Perspective view of the escalator. Block diagram of the escalator. A flowchart for detecting the moving speed of a passenger. The perspective view of the escalator of Embodiment 2. The perspective view of the escalator of Embodiment 3.

Hereinafter, the escalator 10 according to the embodiment of the present invention will be described with reference to the drawings.

Embodiment 1

The escalator 10 of the first embodiment will be described with reference to FIGS. 1 to 4.

(1) Escalator 10
The structure of the escalator 10 will be described with reference to FIG. FIG. 1 is an explanatory view of the escalator 10 as viewed from the side.

As shown in FIG. 1, the truss 12 which is the framework of the escalator 10 is supported in the front-rear direction by using the support angles 2 and 3 across the upper floor and the lower floor of the building 1.

Inside the machine room 14 on the upper floor side at the upper end of the truss 12, a drive device 18 for traveling the step 30, a pair of left and right main drive sprockets 24, 24, and a pair of left and right belt sprockets 27, 27 are provided. .. The drive device 18 includes a motor 20 including an induction motor (induction motor), a speed reducer, an output sprocket attached to the output shaft of the speed reducer, a drive chain 22 driven by the output sprocket, and rotation of the motor 20. It has a disc brake that stops the motor and keeps the stopped state. The drive chain 22 rotates the main drive sprocket 24. The pair of left and right main drive sprockets 24, 24 and the pair of left and right belt sprockets 27, 27 are connected by a connecting belt (not shown) and rotate synchronously. Further, inside the machine room 14 on the upper floor side, a control unit 50 for controlling a motor 20, a disc brake, and the like is provided.

A driven sprocket 26 is provided inside the machine room 16 on the lower floor side at the lower end of the truss 12. A pair of left and right endless step chains 28, 28 are hung between the main drive sprocket 24 on the upper floor side and the driven sprocket 26 on the lower floor side. That is, the wheels 301 of the plurality of steps 30 are attached to the pair of left and right step chains 28, 28 at equal intervals. The wheels 301 of the step 30 travel along a guide rail (not shown) fixed to the truss 12, and engage with a recess on the outer periphery of the main drive sprocket 24 and a recess on the outer periphery of the driven sprocket 26. The step 30 is turned upside down. Further, the wheels 302 travel on the guide rail 25 fixed to the truss 12.

A pair of left and right skirt guards 44, 44 and a pair of left and right balustrades 36, 36 are erected on both the left and right sides of the truss 12. A handrail rail 39 is provided on the upper part of the balustrade 36, and the handrail belt 38 moves along the handrail rail 39. The front skirt guard 40 on the upper floor is provided in the lower front on the upper floor side of the balustrade 36, and the front skirt guard 42 on the lower floor side is provided in the lower front on the lower floor side from the front skirt guards 40 and 42. The inlet portions 46 and 48, which are the entrances and exits of the handrail belt 38, project respectively. The skirt guard 44 is provided at the lower part of the side surface of the balustrade 36, and the step 30 runs between the pair of left and right skirt guards 44, 44. Operation units 52 and 56 and speakers 54 and 58 are provided on the inner surfaces of the skirt guards 44 on the upper and lower floors, respectively.

The handrail belt 38 invades the front skirt guard 40 from the inlet portion 46 on the upper floor side, is hung on the belt sprocket 27 via the guide roller group 64, and then is hung on the belt sprocket 27 via the guide roller group 66, and then the skirt guard 44 via the guide roller group 66. It moves inside and appears outside the front skirt guard 42 from the inlet portion 48 on the lower floor side. Then, the handrail belt 38 moves in synchronization with the step 30 by rotating the belt sprocket 27 together with the main drive sprocket 24. Further, the rotating belt sprocket 27 has a pressing member 68 for pressing the traveling handrail belt 38.

The boarding / alighting board 32 on the upper floor side is horizontally provided at the entrance / exit on the ceiling surface of the machine room 14 on the upper floor side, and the entrance / exit on the ceiling surface of the machine room 16 on the lower floor side is on the lower floor side. The boarding / alighting plate 34 is provided horizontally. A comb-shaped comb 60 is provided at the tip of the boarding / alighting plate 32, and the step 30 appears from the comb 60. Further, the boarding / alighting plate 34 is also provided with a comb-shaped comb 62.

(2) Speed sensor 70
One speed sensor 70 is installed on one of the left and right surfaces of the skirt guard 44 of the escalator 10. The speed sensor 70 is installed at approximately the center of the upper and lower floors of the skirt guard 44 located at the center of the upper and lower floors. The speed sensor 70 includes a ToF sensor. The "ToF sensor" uses a high-speed light source of a near-infrared LED and a CMOS image sensor for acquiring distance image data, and measures the time it takes for the projected light pulse to hit the target and return in real time for each pixel. A distance image image is acquired. For example, when the phase difference method is used, the distance is measured by blinking the light source pulse at high speed and measuring the phase delay of the reflected light.

As shown in FIG. 2, the detection range A of the speed sensor 70 including the ToF sensor is set to a lateral surface slightly upward along the inclined surface formed by the stepped multi-step step 30 and moves on the step 30. Can detect the feet of passengers.

(3) Electrical Configuration of Escalator 10 The electrical configuration of the escalator 10 will be described with reference to the block diagram of FIG. The drive device 18 of the motor 20, the operation units 52 and 56 on the upper and lower floors, the speakers 54 and 58 on the upper and lower floors, and the speed sensor 70 are connected to the control unit 50 provided in the machine room 14 shown in FIG. There is.

(4) Control method based on passenger movement speed v Next, a control method based on passenger movement speed v will be described. As described above, as shown in FIG. 2, the speed sensor 70 has a detection range A in the lateral direction parallel to the inclination direction of the stepped step 30.

First, the control unit 50 detects the distance L1 from the speed sensor 70 to the passenger at the initial time t0 when the passenger enters the detection range A.

Next, the control unit 50 detects the distance L2 from the speed sensor 70 to the passenger again after Δt seconds, that is, at the time (t0 + Δt). Note that Δt is set in advance, and for example, Δt = 0.1 seconds to 1.0 seconds.

Next, the control unit 50 obtains the moving speed v of the passenger from the difference between the distance L1 and the distance L2.

Next, the control unit 50 determines whether or not the moving speed v is faster than the normal driving speed V of the step 30, and if it is faster than the driving speed V, the passenger walks or runs on the step 30. Judge that there is.

Next, if the moving speed v is faster than the driving speed V and up to the same speed as the predetermined human walking speed v1, the control unit 50 determines that the passenger is walking. Further, the control unit 50 determines that the passenger is running when the walking speed is faster than v1. For example, when the driving speed V = 30 m / min and the preset human walking speed v1 = 60 m / min, the driving speed V + walking speed v1 = 90 m / min, so that the speed sensor 70 of the control unit 50 If the detected movement speed v is 90 m / min, it is determined that the passenger is walking, and if the speed is higher than that, it is determined that the passenger is running.

Then, when the passenger is walking, the control unit 50 controls the drive device 18 to set the operating speed of the step 30 to a speed slower than 30 m / min (for example, 20 m / min) from the speakers 54 and 58. A cautionary broadcast will be made saying, "Please stop if you are walking."

When a passenger is running, the control unit 50 controls the drive device 18 to set the operating speed of the step 30 to a speed slower than 30 m / min (for example, 20 m / min), and the speakers 54 and 58 indicate that Please stop if you are running, "and a warning sound will be emitted.

The flow of this control will be described with reference to the flowchart of FIG.

In step S1, when the maintenance person operates the operation unit 52 or the operation unit 56, the control unit 50 drives the drive device 18 of the escalator 10 and moves the step 30 at a normal operating speed of 30 m / min. Then, the process proceeds to step S2.

In step S2, when the passenger gets on the escalator 10 and the step 30 moves, the passenger moves to the detection range A of the speed sensor 70. Therefore, the speed sensor 70 detects the passenger and proceeds to step S3.

In step S3, if the moving speed v detected by the speed sensor 70 is faster than the operating speed V of the step 30, the process proceeds to step S4 (in the case of y), and if it is the same as the operating speed V, the process returns to step S2 (n. If).

In step S4, the control unit 50 decelerates the operating speed V of the step 30 and operates at 20 m / min. Then, the process proceeds to step S5.

In step S5, when the moving speed v of the passenger detected by the speed sensor 70 is faster than the driving speed V + walking speed v1, the control unit 50 proceeds to step S7 (in the case of y), which is the same as the driving speed V + walking speed v1. If it is later than that, the process proceeds to step S6 (in the case of n).

In step S6, since the moving speed v of the passenger is the same as or slower than the walking speed v1, the control unit 50 broadcasts a caution saying "Please stop the walking passenger" and proceeds to step S8.

In step S7, since the moving speed v of the passenger is faster than the walking speed v1, the control unit 50 broadcasts a caution saying "Please stop the running passenger" and outputs a warning sound to further call attention. The process proceeds to step S8.

In step S8, after a predetermined time (for example, 30 seconds) after the passenger is detected, the caution broadcast and the warning sound are stopped, the operating speed of the escalator 10 is returned to the normal operating speed V, and the process returns to step S2.

(5) Effect According to the present embodiment, since the moving speed v of the passenger is detected by the speed sensor 70 composed of one ToF sensor, the structure is simple and the process of obtaining the moving speed v is also easy. It can be carried out.

In addition, since the notification method differs depending on whether the passenger is walking or running, the danger can be more appealed to the passenger.

Embodiment 2

Next, the escalator 10 of the second embodiment will be described with reference to FIG.

In the first embodiment, the speed sensor 70 is installed on one of the left and right skirt guards 44, but in the present embodiment, the speed sensor 70 is set on the guard plate 72 instead. That is, the escalator 10 installed between the lower floor and the upper floor has a triangular space between the escalator 10 and the lower surface of the floor 4 on the upper floor. Therefore, in order to prevent the passenger's body from being caught in this space, a triangular guard plate 72 is hung from the floor 4 on the upper floor. In the present embodiment, the speed sensor 70 is installed on the guard plate 72. As shown in FIG. 5, the detection range B of the speed sensor 70 is set to a horizontal surface above the handrail belt 38 and along a surface parallel to the inclination direction of the handrail belt 38.

As a result, when the passenger passes the detection range B, the control unit 50 can detect the moving speed v of the passenger.

The processing after the detection of the moving speed v of the passenger is the same as that in the first embodiment.

Embodiment 3

Next, the escalator 10 of the third embodiment will be described with reference to FIG.

In the present embodiment, the escalator 10 is installed on the ceiling surface 5 and directly above the step 30. The detection range C of the speed sensor 70 is a central portion (central portion in the width direction) of the step 30 and a surface (vertical surface) in the vertical direction from the lower floor to the upper floor. Then, when the passenger passes through the detection range C composed of the planes in the vertical direction, the moving speed v of the passenger can be detected.

Further, in the present embodiment, the speed sensor 70 is installed on the ceiling surface 5, but instead, the speed sensor 70 may be installed on the lower surface of the truss 12 of the escalator 10 which is further above the escalator 10. That is, when the escalators 10 are in order from the first floor to the third floor, the speed sensor 70 is placed on the lower surface of the truss 12 of the escalator 10 going from the second floor to the third floor above the escalator 10 going from the first floor to the second floor. Install. The detection range of the speed sensor 70 is set in the vertical direction and is set in the central portion of the step 30.

The processing after the detection of the moving speed v of the passenger is the same as that in the first embodiment.

Change example

In the above embodiment, it has been described by applying it to the escalator 10, but it may be applied to a moving walkway instead.

Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

10 ... Escalator, 18 ... Drive device, 30 ... Step, 70 ... Speed sensor, 72 ... Guard plate

Claims (10)

Steps running in the front-back direction and
The boarding / alighting board on which the steps advance and
A pair of left and right skirt ghats provided on both the left and right sides of the step,
A pair of left and right balustrades erected from the pair of left and right skirt guards,
The drive device that runs the steps and
A control unit that controls the operating speed of the step using the drive device,
A pair of left and right front skirt guards provided at the entrance and exit of the balustrade,
A speed sensor consisting of one ToF sensor that detects the moving speed of passengers on the step, and
Have,
The detection range of the speed sensor is set to a lateral surface along the upper side of the inclined surface formed by the stepped steps.
The control unit notifies when the moving speed of the passenger detected by the speed sensor in the detection range is faster than the driving speed of the step.
Passenger conveyor. Steps running in the front-back direction and
The boarding / alighting board on which the steps advance and
A pair of left and right skirt ghats provided on both the left and right sides of the step,
A pair of left and right balustrades erected from the pair of left and right skirt guards,
A handrail belt running on the upper part of the balustrade and
The drive device that runs the steps and
A control unit that controls the operating speed of the step using the drive device,
A pair of left and right front skirt guards provided at the entrance and exit of the balustrade,
A speed sensor consisting of one ToF sensor that detects the moving speed of passengers on the step, and
Have,
The detection range of the speed sensor is set to a lateral surface along a surface parallel to the inclination direction of the handrail belt.
The control unit notifies when the moving speed of the passenger detected by the speed sensor in the detection range is faster than the driving speed of the step.
Passenger conveyor. Steps running in the front-back direction and
The boarding / alighting board on which the steps advance and
A pair of left and right skirt ghats provided on both the left and right sides of the step,
A pair of left and right balustrades erected from the pair of left and right skirt guards,
The drive device that runs the steps and
A control unit that controls the operating speed of the step using the drive device,
A pair of left and right front skirt guards provided at the entrance and exit of the balustrade,
A speed sensor consisting of one ToF sensor that detects the moving speed of passengers on the step, and
Have,
The detection range of the speed sensor is set in the central portion of the step and in the vertical plane from the lower floor to the upper floor.
The control unit notifies when the moving speed of the passenger detected in the detection range by the speed sensor is faster than the driving speed of the step.
Passenger conveyor. Prior Symbol controller, the movement of the passenger from the distance to the passengers the passenger was detected at time t0 which enters the detection range of the ToF sensor, the distance to the passenger detected at time (t0 + Delta] t) Find speed,
The passenger conveyor according to any one of claims 1 to 3 . The ToF sensor is installed on the skirt guard.
The passenger conveyor according to claim 1. The ToF sensor is installed on the ceiling at the position where the passenger conveyor is provided.
The passenger conveyor according to claim 3 . The passenger conveyor is an escalator that connects the lower floor and the upper floor.
The ToF sensor is installed on a guard plate arranged in a space where the balustrade and the lower surface of the floor on the upper floor intersect.
The passenger conveyor according to claim 2 . The passenger conveyor is an escalator that connects the lower floor and the upper floor.
The ToF sensor is installed below the escalator connected to the floor above the upper floor.
The passenger conveyor according to claim 3 . The control unit performs the notification and decelerates the operating speed of the step.
The passenger conveyor according to claim 1. The control unit includes the method of notifying the passenger that the moving speed is faster than the driving speed and up to a predetermined walking speed, and the moving speed of the passenger is faster than the driving speed and the walking. Notification is performed so as to be different from the above notification method when the speed is faster than the speed.
The passenger conveyor according to claim 1.

Images