JP2019108191A - Passenger conveyor - Google Patents

Abstract

To provide a passenger conveyor capable of giving a more specific warning to a passenger not gripping a handrail belt.SOLUTION: This passenger conveyor has: a passage sensor 72 that is provided to the lower lateral part of a handrail 36 located at an entrance so as to detect a passenger; a camera 78 that captures an image of a handrail belt 38 traveling on the handrail 36 located at the entrance; and a control unit 50 that determines whether the image includes a hand in the handrail belt 38 when the passage sensor 72 detects passage of the passenger, and urges the passenger to grip the handrail 38 by hand when the image does not include the hand.SELECTED DRAWING: Figure 3

Description

  Embodiments of the present invention relate to a passenger conveyor.

  Conventionally, in a passenger conveyor such as an escalator and a moving sidewalk, in order to ensure the safety of the passenger, broadcasts are repeatedly performed from a speaker so as to hold a handrail belt for all the passengers.

Japanese Patent Laid-Open No. 2000-07266 JP, 2009-263065, A

  However, even if the above-mentioned broadcast is very useful for preventing a fall of a passenger at the time of emergency stop, there is a problem that it is often heard only by the passenger.

  Therefore, an embodiment of the present invention aims to provide a passenger conveyor that can more specifically warn passengers who do not grasp a handrail belt.

  An embodiment of the present invention includes a plurality of steps connected endlessly, a pair of left and right balustrades erected on the left and right sides of the steps, a handrail belt running on the upper portion of the balustrade, and an entrance and exit The pass sensor of the passenger provided on the side of the lower part of the balustrade, a camera for capturing an image of the handrail belt traveling on the balustrade at the entrance, and the pass sensor detects the pass of the passenger Sometimes, it is determined in the image whether or not the hand is captured on the handrail belt, and when the hand is not captured in the image, the passenger grasps the handrail belt by the hand And a control unit for giving a warning.

Side surface explanatory drawing of the escalator which shows one Embodiment of this invention. The enlarged side view of the entrance on the upper floor side. Top view of escalator. Upper right image when the passenger is gripping the handrail belt by hand. Upper right image when the passenger does not grasp the handrail belt. Block diagram of the escalator.

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

(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.

  A truss 12 which is a framework of the escalator 10 is supported by supporting angles 2 and 3 straddling upper and lower floors of the building 1.

  Inside the machine room 14 on the upper floor side at the upper end of the truss 12, a drive 18 for moving the step 30, a pair of left and right 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 reduction gear, an output sprocket attached to an output shaft of the reduction gear, a drive chain 22 driven by the output sprocket, and rotation of the motor 20 And a disk brake for holding the stopped state. The drive sprocket 24 is rotated by the drive chain 22. The pair of left and right drive sprockets 24, 24 and the pair of left and right belt sprockets 27, 27 are connected by a connecting belt (not shown) and synchronously rotate. Further, inside the machine room 14 on the upper floor side, a control unit 50 that controls the motor 20, a disk brake, and the like is provided.

  A driven sprocket 26 is provided in the lower machine room 16 at the lower end of the truss 12. A pair of left and right endless step chains 28, 28 are stretched between the drive sprocket 24 on the upper floor side and the driven sprocket 26 on the lower floor side, and a plurality of left and right step chains 28, 28 The wheels 301 of the steps 30 are attached at equal intervals. The wheel 301 of the step 30 travels along a guide rail (not shown) fixed to the truss 12 and engages with a recess in the outer periphery of the drive sprocket 24 and a recess in the outer periphery of the driven sprocket 26 to move up and down Reverse. Further, the wheels 302 travel on the guide rails 25 fixed to the truss 12.

  On the left and right sides of the truss 12, a pair of left and right skirt guards 44, 44 and a pair of left and right balustrades 36, 36 are provided upright. A handrail rail 39 is provided above the balustrade 36, and the handrail belt 38 moves along the handrail rail 39. A front skirt guard 40 on the upper floor is provided at the lower front of the upper floor of the balustrade 36, and a front skirt guard 42 on the lower floor is provided at the lower front on the lower floor. The inlets 46 and 48 which are the entrance and exit of the handrail belt 38 respectively project. The skirt guard 44 is provided at the lower part of the side of the balustrade 36, and the step 30 travels between the pair of left and right skirt guards 44, 44. Control panels 52 and 56 and speakers 54 and 58 are provided on the inner side surfaces of the skirt guards 44 on the upper and lower floors, respectively.

  The handrail belt 38 intrudes into the front skirt guard 40 from the inlet 46 on the upper floor side, is stretched around the belt sprocket 27 via the guide roller 64, and then passes through the inside of the skirt guard 44 via the guide roller 66. It moves and appears outside the front skirt guard 42 from the inlet 48 on the lower floor side. The handrail belt 38 moves in synchronization with the step 30 as the belt sprocket 27 rotates with the drive sprocket 24. In addition, a pressing member 68 for pressing the handrail belt 38 traveling on the rotating belt sprocket 27 is provided.

  On the ceiling of the machine room 14 on the upper floor side, an entrance plate 32 on the upper floor side is horizontally provided at the entrance and exit of the machine room 16 on the lower floor side. A passenger board 34 is provided horizontally. A comb-like comb 60 is provided at the tip of the landing plate 32, and the step 30 advances or intrudes from the comb 60. Further, a comb-like comb 62 is also provided on the board 34.

(2) Configuration for Executing Warning to Passengers Next, a configuration for giving a warning to a passenger who does not grip the handrail belt 38 will be described with reference to FIGS.

  As shown in FIG. 2 and FIG. 3, a pair of left and right balustrades 36, 36 are provided on the left and right sides of the upper board 32 of the escalator 10, and front skirt guards 40, 40 are provided below them. ing.

  As shown in FIGS. 2 and 3, below the inlet portion 46 in front of the pair of front skirt guards 40, 40, a pair of upper detection sensors 70L, 70R are provided. The upper detection sensors 70L and 70R are reflection type area sensors, and are photoelectric sensors. When a passenger passes the left side of the board 32, the upper left detection sensor 70L on the left side detects the passenger and outputs an upper left detection signal to the control unit 50. When a passenger passes the right side of the board 32, the upper right detection sensor 70R detects the passenger and outputs an upper right detection signal to the control unit 50. When the upper detection sensors 70L and 70R are collectively described, they are referred to as "upper detection sensor 70".

  As shown in FIGS. 2 and 3, upper passage sensors 72, 72 are respectively provided on the opposing inner side surfaces of the pair of front skirt guards 40, 40 on the upper floor side. The upper passage sensor 72 is a photoelectric sensor in which a light emitting unit and a light receiving unit are combined, and a light emitting unit is provided on the inner side surface of one front skirt guard 40 and a light receiving unit is provided on the inner side surface of the other front skirt guard 40 It is provided. Then, when the light receiving unit constantly receives the light from the light emitting unit and the passenger passes through the space and the light receiving unit can not receive the light, the upper passing signal is output to the control unit 50 assuming that the passenger has passed.

  As shown in FIGS. 1 to 3, a pair of upper and lower cameras 78 </ b> L and 78 </ b> R are installed on the ceiling 4 on the upper floor of the building 1. A pair of upper cameras 78L and 78R on the left and right sides are handrail belts 38L and 38R passing through a pair of left and right balustrades 36 and 36 located lower than the upper passage sensor 72, that is, above the comb 60 on the upper floor side. Images are captured from the top as moving images, and the captured upper left image and the upper right image are output to the control unit 50 as shown in FIGS. 4 and 5.

  Similarly, on the lower floor side, as shown in FIGS. 1 and 3, a pair of left and right lower detection sensors 74L and 74R are provided on the front of each of the pair of front skirt guards 42 and 42. When the lower detection sensors 74L and 74R detect a passenger, the lower left detection signal and the lower right detection signal are output to the control unit 50, respectively.

  As shown in FIGS. 1 and 3, a lower passage sensor 76 is provided on the opposing inner side surfaces of the pair of left and right front skirt guards 42, 42. When the lower passage sensor 76 detects a passenger, the lower passage sensor 76 outputs a lower passage signal to the control unit 50.

  As shown in FIG. 1, a pair of left and right lower cameras 80 </ b> L and 80 </ b> R are installed on the ceiling 5 of the lower floor of the building 1. The pair of left and right lower cameras 80L, 80R are provided at a position above the lower passage sensor 76 and pass the pair of left and right balustrades 36, 36 above the lower floor comb 62, 38 R is photographed from the top as a moving image, and the photographed lower left image and lower right image are output to the control unit 50 respectively.

(3) Electrical Configuration of Escalator 10 The electrical configuration of the escalator 10 will be described with reference to FIG. The control unit 50 includes a motor 20, an operation panel 52 on the upper floor, speakers 54, upper cameras 78L and 78R, a pair of upper detection sensors 70L and 70R on the left and right, an upper passage sensor 72, an operation panel 56 on the lower floor, speakers A pair of left and right lower cameras 80L and 80R, a pair of left and right lower detection sensors 74L and 74R, and a lower passage sensor 76 are connected.

(4) Method for giving a warning when the passenger does not hold the handrail belt 38 Next, in the escalator 10, a method for giving a warning when the passenger does not hold the handrail belt 38 will be described below. . In this description, it is assumed that the escalator 10 moves downward, that is, the steps 30 move from the upper floor to the lower floor. Therefore, the entrance is on the upper floor side, and the exit is on the lower floor side. Then, the control unit 50 operates the pair of left and right upper detection sensors 70L and 70R, the upper passage sensor 72, and the pair of left and right upper cameras 78L and 78R.

  For example, the upper right detection sensor 70R on the right side outputs an upper right detection signal to the control unit 50 when a passenger is detected.

  Next, the upper passage sensor 72 detects the passage of a passenger, and outputs an upper passage signal to the control unit 50.

  Next, when the upper right detection signal and the upper passage signal are input, the control unit 50 moves up one frame of the moving image of the handrail belt 38R captured by the upper camera 78R on the right after a predetermined time from the input time. Acquire as the right image. Since the position of the upper passage sensor 72 and the imaging region of the pair of upper cameras 78R are shifted from the predetermined time, the step 30 moves from the position of the upper passage sensor 72 to the imaging region of the pair of upper cameras 78R. It is the time needed to

  Next, the control unit 50 binarizes the luminance value of each pixel in the acquired upper right image using the reference luminance value to generate a black and white binarized image. The handrail belt 38 has a low luminance value such as green and black, and the human hand has a high luminance value such as skin color. Therefore, using the reference luminance value for dividing the handrail belt 38 between The area is divided into the area of the hand, the area of the handrail belt 38 is a black area, and the area of the hand is a white area.

  Next, when the number of pixels in the white region in the binarized image is larger than a predetermined reference number of pixels, the control unit 50 determines that the hand appears in the upper right image. Then, when the control unit 50 determines that the passenger grips the handrail belt 38 by hand, a warning is not broadcast. On the other hand, when the number of pixels in the white region is smaller than the reference number of pixels, the control unit 50 determines that the passenger does not grip the handrail belt 38 by hand.

  Next, when the control unit 50 determines that the passenger does not grasp the handrail belt 38 by hand, the speaker 54 on the upper floor reads, "The passenger who has now boarded the handrail belt firmly by hand Broadcast a warning such as "Please grab". This makes it possible to identify and warn passengers.

  When the passenger gets in from the left side, the upper left detection sensor 70L on the left outputs an upper left detection signal to the control unit 50, and when the upper passage sensor 72 outputs an upper passage signal to the control unit 50, the control unit 50 judges from the upper left image taken by the upper left camera 78L on the left side whether or not the passenger on the left is gripping the handrail belt 38 in the same manner as above, and if it is not grasped on the upper floor Broadcast a warning from the speaker 54.

  Furthermore, when two passengers get on the right and left of the step 30, the pair of upper detection sensors 70L and 70R on the left and right and the upper passage sensor 72 respectively detect the two passengers, and the upper left detection signal, upper The right detection signal and the upper passage signal are output to the control unit 50, respectively. The control unit 50 shoots the upper surfaces of the left and right handrail belts 38 with the left upper camera 78L and the right upper camera 78R, respectively, and when it is determined that the passenger's hand is detected, it is detected without giving a warning. If not, give a warning. In this case, one of the left and right passengers always warns when the handrail belt 38 is not gripped.

  In the above description, the state when the step 30 is lowered has been described, but when the step 30 is lifted, the pair of left and right lower detection sensors 74L and 74R, the lower passage sensor 76 and the pair of lower cameras 80L and 80R are operated Then, it is determined whether the passenger is gripping the handrail belt 38 by hand. When the handrail belt 38 is not grasped by hand, a warning is broadcasted from the lower floor speaker 58.

(5) Effects According to the present embodiment, since the warning is given from the speakers 54 and 58 in the vicinity of the entrance to a specific passenger who does not grasp the handrail belt 38 by hand, the specific passenger is surely warned. Can ensure the safety of the passengers.

  Also, for the passenger on the right side of the step 30, the right handrail belt 38R is photographed, and for the passenger on the left side of the step 30, the left handrail belt 38L is photographed and the handrail belt 38 is grasped In order to judge, any passenger can surely give a warning.

(6) Modified Example In the above embodiment, the escalator 10 is large enough to allow two passengers to stand side by side on the steps 30. Instead, the width of the steps 30 is narrow and the single-seat escalator 10 is used. In some cases, the left and right pair of upper detection sensors 70L and 70R are unnecessary, and when the upper passage sensor 72 detects the passage of a passenger, the left and right handrail belts 38 and 38 are detected by the left and right upper cameras 78L and 78R. At the same time, the upper surface is photographed, and a warning is not given if the hand appears on one of the left and right images, and a warning is given only if the hand does not appear on either image.

  Although the above embodiment is described by applying to the escalator 10, it may be applied to a moving sidewalk 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 forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

DESCRIPTION OF SYMBOLS 10 ... Escalator, 30 ... Step, 36 ... Balustrade, 40 ... Front skirt guard, 42 ... Front skirt guard, 44 ... Skirt guard, 70 ... Upper detection sensor, 72 ... Upper passage sensor, 74 ... Lower detection sensor, 76 ... Lower passage sensor, 78 ... Upper camera, 80 ... Lower camera

An embodiment of the present invention includes a plurality of steps connected endlessly, a pair of left and right balustrades erected on the left and right sides of the steps, a handrail belt running on the upper portion of the balustrade, and an entrance and exit The pass sensor of the passenger provided on the side of the lower part of the balustrade, a camera for capturing an image of the handrail belt traveling on the balustrade at the entrance, and the pass sensor detects the pass of the passenger Sometimes, it is determined in the image whether or not the hand is captured on the handrail belt, and when the hand is not captured in the image, the passenger grasps the handrail belt by the hand to a control unit that performs a warning, have a, wherein, when determining whether the hand the handrail belt in the in the image is captured, the color of the balustrade belt in the image Judging from differences in color of the hand and, It is a customer conveyor.

Claims (10)

Multiple steps connected endlessly,
A pair of left and right balustrades erected on the left and right sides of the step,
A handrail belt running on top of the balustrade;
A passenger pass sensor provided on the lower side of the balustrade at the entrance,
A camera for capturing an image of the handrail belt traveling on the balustrade at the entrance and exit;
When the passage sensor detects the passage of the passenger, it is determined in the image whether or not the hand is reflected on the handrail belt, and when the hand is not reflected in the image A control unit for giving a warning to grasp the handrail belt by the hand;
Passenger conveyor with. It further has a detection sensor which is provided in front of the balustrade at the entrance and which detects the passenger heading for the entrance.
The control unit
When the detection sensor and the passage sensor detect the passenger, it is determined in the image whether or not the hand is captured on the handrail belt, and the hand is not captured in the image Alerting the passenger to hold the handrail belt with the hand,
The passenger conveyor according to claim 1. The detection sensors are respectively provided in front of the pair of left and right balustrades at the entrance and exit;
The cameras are respectively provided above the handrail belts of the pair of left and right balustrades;
When the detection sensor on the left side and the passage sensor detect the passenger, the control unit captures the image by the camera on the left side, and the detection sensor on the right side and the passage sensor detect the passenger When the camera on the right takes the image,
The passenger conveyor according to claim 2. It further has a speaker,
The control unit executes the warning from the speaker.
The passenger conveyor according to claim 1. The passage sensor, the camera, and the speaker are provided at one of the entrance and the other, respectively.
When the control unit executes the warning, the control unit notifies using the speaker on the passenger side of the passenger.
The passenger conveyor according to claim 4. The control unit determines from the difference between the color of the handrail belt in the image and the color of the hand when determining whether or not the hand appears on the handrail belt in the image.
The passenger conveyor according to claim 1. The control unit binarizes the image with a predetermined reference luminance to generate a binarized image.
In the binarized image, it is determined that the hand appears when the area equal to or more than the reference luminance is equal to or more than the reference area.
The passenger conveyor according to claim 6. The area is the number of pixels above the reference luminance in the binarized image.
The passenger conveyor according to claim 7. The cameras are respectively provided above the handrail belts of the pair of left and right balustrades;
When the passage sensor detects the passenger, the control unit shoots the images with a pair of left and right cameras, and notifies the warning when the hand is not shown in either of the images. Do not execute the warning when the hand appears in at least one of the images.
The passenger conveyor according to claim 1. The passenger conveyor is an escalator or a moving sidewalk,
The passenger conveyor according to any one of the preceding claims.

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