Passenger conveyor system and moving body

Abstract

To provide a passenger conveyor system and a moving body that are able to automatically inspect whether the movement of a handrail belt and the movement of a step are synchronized by the moving body.SOLUTION: A moving body 100 includes: a moving body main body 102 which moves on steps 30; a left sensor 110 and a right sensor 112 which are provided in the moving body main body 102 and detect a pair of left and right identification seals 68; and a moving body control unit 104. The pair of left and right sensors 110, 112 detect a position of the identification seal 68 in an image acquired at a start position determined while the moving body main body 102 moves on the steps 30 from an entrance to an exit, and a position of the identification seal 68 in an image acquired at an end position located on an exit side with respect to the start position. The moving body control unit 104 obtains an amount of delay in a longitudinal direction between the position of the identification seal 68 in the image of the start position and the position of the identification seal 68 in the image of the end position, and determines from the amount of delay whether a movement of the step 30 and a movement of handrail belt 38 are synchronized or not.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] An embodiment of the present invention relates to a passenger conveyor system and a moving body used therein. [Background technology]

[0002] Conventionally, in passenger conveyors such as escalators and moving walkways, the steps and handrail belts move synchronously at the same speed. However, due to aging of the driving mechanism of the passenger conveyor, the handrail belt may move slower than the steps. For this reason, in the past, workers would measure the speed of the handrail belt and the steps separately during monthly inspections to check for any delays.

[0003] Workers also inspected the railings along which the handrail belts ran for any damage or cracks. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-181365 [Patent Document 2] JP 2000-255962 A Summary of the Invention [Problem to be solved by the invention]

[0005] When inspecting the handrail belt speed and the step speed as described above, there is a problem in that the inspection must be carried out mainly manually by an operator.

[0006] There was also the problem that workers had to inspect the railings to see if they were damaged or cracked.

[0007] Therefore, an embodiment of the present invention aims to provide a passenger conveyor system and a moving body that can automatically check whether the movement of the handrail belt and the movement of the steps are synchronized, and can also automatically check whether the handrail is damaged. [Means for solving the problem]

[0008] One embodiment of the present invention is a passenger conveyor system including a passenger conveyor and a moving body, the passenger conveyor having a pair of left and right handrails provided in the front-rear direction between one boarding / alighting entrance and the other boarding / alighting entrance, steps moving in the front-rear direction between the pair of left and right handrails, a pair of left and right handrail belts running in sync with the steps on the upper parts of the pair of left and right handrails, and a pair of left and right identifiers provided on the pair of left and right handrail belts, the moving body having a moving body main body that moves on the steps from one boarding / alighting entrance to the other boarding / alighting entrance, a pair of left and right image sensors provided on the moving body main body and detecting the pair of left and right identifiers, and a moving body control unit. and the pair of left and right image sensors detect the position of the identifier in an image acquired at a predetermined start position while the mobile body moves on the steps from one of the boarding / alighting entrances to the other of the boarding / alighting entrances, and the position of the identifier in the image acquired at an end position which is on the other of the boarding / alighting entrances side of the start position, and the mobile body control unit determines the amount of delay in the front-to-rear direction between the position of the identifier in the image at the start position and the position of the identifier in the image at the end position, and determines from the amount of delay whether the movement of the steps and the movement of the handrail belt are synchronized.

[0009] Moreover, one embodiment of the present invention is a passenger conveyor system including a passenger conveyor and a moving body, wherein the passenger conveyor has a pair of left and right handrails arranged in the front-to-back direction between one boarding / alighting entrance and the other boarding / alighting entrance, steps that move in the front-to-back direction between the pair of left and right handrails, and a pair of left and right handrail belts that run synchronously with the steps on the upper parts of the pair of left and right handrails, and the moving body has a moving body main body that moves on the steps from one boarding / alighting entrance to the other boarding / alighting entrance, a pair of left and right cameras that are arranged on the moving body main body and photograph the pair of left and right handrails, and a moving body control unit, wherein the moving body control unit compares images taken by the pair of left and right cameras while the moving body main body moves on the steps from one boarding / alighting entrance to the other boarding / alighting entrance with a reference image stored in advance, and detects a damaged state of the handrails. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is an explanatory diagram of an escalator according to an embodiment of the present invention, viewed from the right side. [Diagram 2] 1 is a vertical cross-sectional view of a moving object moving on an escalator on a step. FIG. [Diagram 3] FIG. 2 is a block diagram of a moving body and an escalator. [Figure 4] 13 is a flowchart showing a process performed when a moving body inspects an escalator. [Diagram 5] 5A and 5B are plan views of the handrail belt for explaining the amount of delay of the handrail belt, where FIG. 5A is a plan view at the shooting start position, and FIG. 5B is a plan view at the shooting end position. [Figure 6] These are side views taken from the right side when inspecting a railing, where (a) is a reference image in a normal state, and (b) is a side view taken from the right side of the captured image. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] An escalator 10 and a moving body 100, which are a passenger conveyor system according to one embodiment of the present invention, will be described with reference to Figs. 1 to 6.

[0012] (1) Escalator 10 The overall structure of escalator 10 will be described with reference to Fig. 1. Fig. 1 is an explanatory diagram of escalator 10 as viewed from the left side. However, in order to make the internal structure of escalator 10 easier to understand, illustration of members on the right side of escalator 10 is omitted. Note that when describing the front-to-rear direction of escalator 10, it is assumed that the viewer is looking up from a lower floor to an upper floor, with the upper floor being the front side and the lower floor being the rear side.

[0013] As shown in FIG. 1, a truss 12, which is a framework of an escalator 10, is supported in the front-rear direction by support angles 2 and 3 across the upper and lower floors of a building 1. Inside an upper floor machine room 14 at the upper end of the truss 12, a drive unit 18 for running the steps 30, a pair of left and right step sprockets 24, 24, and a pair of left and right belt sprockets (not shown) are provided. The drive unit 18 has a motor 20, a reducer 21, a small drive sprocket 19 attached to the output shaft of the reducer 21, and a disk-type electromagnetic brake 23 for stopping the rotation of the motor 20 and maintaining the stopped state. A large drive sprocket 17 is attached to the pair of left and right step sprockets 24, 24 on the same shaft, and an endless drive chain 22 is stretched between the large drive sprocket 17 and the small drive sprocket 19. Inside the upper floor machine room 14, a control device 50, which is a main control unit for controlling the motor 20, the electromagnetic brake 23, etc., is provided.

[0014] A pair of left and right driven sprockets 26, 26 are provided inside the lower floor 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 pair of left and right step sprockets 24, 24 on the upper floor side and the pair of left and right driven sprockets 26, 26 on the lower floor side. A pair of left and right first wheels 301, 301 of a plurality of steps 30 are connected at regular intervals between the pair of left and right step chains 28, 28. When the motor 20 rotates, the first wheel 301 of the step 30 runs on a guide rail dedicated to the first wheel (not shown) fixed to the truss 12, and the second wheel 302 of the step 30 runs on a guide rail dedicated to the second wheel 25 fixed to the truss 12.

[0015] A pair of glass balustrades 36, 36 are erected on both the left and right sides of the upper part of the truss 12. A handrail rail 39 is provided on the upper part of the balustrade 36, and an endless handrail belt 38 moves along the handrail rail 39.

[0016] The pair of left and right handrail belts 38, 38 move in synchronization with the steps 30 as a pair of left and right belt sprockets (not shown) rotate together with the pair of left and right step sprockets 24, 24. To check whether the pair of left and right handrail belts 38, 38 are moving in synchronization with the steps 30, a pair of left and right circular identification stickers (identifiers) 68 are affixed to the surfaces of the pair of left and right handrail belts 38, 38, respectively. These identification stickers 68 are small in size so as not to be noticeable to passengers (note that the identification stickers 68 are drawn large in the drawings for easy understanding).

[0017] An upper floor front skirt guard 40 is provided on the lower front part of the upper floor side of the pair of left and right balustrades 36, and a lower floor front skirt guard 42 is provided on the lower front part of the lower floor side. Inlets 46, 48 which are the entrances and exits of the handrail belt 38 protrude from the front skirt guards 40, 42, respectively. Skirt guards 44 are provided on the lower sides of the pair of left and right balustrades 36, respectively, and the steps 30 run between the pair of left and right skirt guards 44, 44.

[0018] An upper floor boarding / alighting plate 32 is provided horizontally on the ceiling surface of the machine room 14, which is the boarding / alighting entrance between the pair of left and right skirt guards 44, 44 on the upper floor. A lower floor boarding / alighting plate 34 is provided horizontally on the ceiling surface of the machine room 16, which is the boarding / alighting entrance between the pair of left and right skirt guards 44, 44 on the lower floor. A comb-tooth-shaped comb 60 is provided at the tip of the upper floor boarding / alighting plate 32, and the steps 30 enter and exit the comb 60. A comb-tooth-shaped comb 62 is also provided at the tip of the lower floor boarding / alighting plate 34.

[0019] (2) Mobile 100 Next, a mobile unit 100 for inspecting whether the pair of left and right handrail belts 38, 38 of the escalator 10 and the steps 30 are moving in sync and for inspecting the state of damage to the pair of left and right balustrades 36 will be described with reference to Fig. 2. This mobile unit 100 is an autonomously moving robot, and its purpose is to inspect the escalator 10 without any human intervention.

[0020] 2, the mobile body 100 has a mobile body main body 102 that is substantially cubic, and the size of the mobile body main body 102 is designed so that it can stand on one step 30. A mobile body control unit 104 made up of a computer or the like is provided inside the mobile body main body 102, and a memory unit 114, a mobile body communication unit 116, and a speed sensor 128 are also provided in the mobile body control unit 104. Four wheels 106 are provided on the bottom of the mobile body main body 102, and these four wheels 106 are rotated by a travel motor 108. The mobile body control unit 104 can control the rotation, stop, and rotation direction of the travel motor 108 to move the mobile body 100 forward, backward, or rotate right or left.

[0021] A support column 118 is erected vertically on the upper surface of the mobile body 102 of the mobile body 100, and a left horizontal section 120 protrudes horizontally from the upper end of the support column 118 toward the left, and a right horizontal section 122 protrudes horizontally from the upper end of the support column 118 toward the right. When the mobile body 100 is viewed from the rear, the left horizontal section 120, the right horizontal section 122 and the support column 118 form an approximately T-shape. A left image sensor (hereinafter referred to as the "left sensor") 110 is attached to the tip of the left horizontal section 120. Also, a right image sensor (hereinafter referred to as the "right sensor") 112 is attached to the tip of the right horizontal section 122. Images detected by the left sensor 110 and the right sensor 112 are sent to the mobile body control unit 104, respectively. The heights of the left horizontal portion 120 and the right horizontal portion 122 are set so that when the moving body 100 is placed on the steps 30, the heights of the left sensor 110 and the right sensor 112 are above the pair of left and right handrail belts 38, 38.

[0022] A left camera 124 and a right camera 126 are provided on the left and right sides of the mobile body 102, respectively, and the left camera 124 photographs the left hand rail 36, and the right camera 126 photographs the right hand rail 36. The images photographed by the left camera 124 and the right camera 126 are each sent to the mobile body control unit 104.

[0023] (3) Electrical configuration of the escalator 10 and the moving body 100 Next, the electrical configuration of the escalator 10 and the moving body 100 will be described with reference to the block diagram of FIG.

[0024] As shown in FIG. 3, the control device 50 inside the machine room 14 on the upper floor is connected to a communication unit 64 for communicating with the mobile body communication unit 116 of the mobile body 100 described later and a monitoring device 200 in an external maintenance center, and a drive circuit 66 for controlling the motor 20 and the electromagnetic brake 23.

[0025] The mobile body control unit 104 of the mobile body 100 is connected to a mobile motor 108, a left sensor 110, a right sensor 112, a memory unit 114, a mobile body communication unit 116, a left camera 124, a right camera 126, and a speed sensor 128, and the mobile body communication unit 116 communicates with the communication unit 64 as described above.

[0026] (4) Checking the synchronization between the movement of the handrail belt 38 and the movement of the steps 30 The pair of left and right handrail belts 38, 38 are moved by a pair of left and right belt sprockets (not shown), but the moving speed of the handrail belts 38 gradually slows down due to aging and other factors, and may become out of sync with the moving speed of the steps 30. Hereinafter, a method for the moving body 100 to check the synchronization state between the movement of the handrail belts 38 and the movement of the steps 30 will be described.

[0027] As described above, a pair of left and right identification stickers 68, 68 are affixed to the surfaces of the pair of left and right handrail belts 38, 38, as shown in Figs.

[0028] When the escalator 10 is in an upward operation, the moving body 100 is moved to the boarding / alighting plate 34 on the lower floor side.

[0029] On this boarding and alighting board 34, as shown in FIG. 1, when the left handrail belt 38 moves along the semicircular surface on the lower floor side of the balustrade 36 and the identification sticker 68 on the left handrail belt 38 reaches the most protruding position A of the semicircle, the left sensor 110 of the moving body 100 discovers the identification sticker 68.

[0030] Next, the moving body 100 steps onto the steps 30 from the boarding / alighting plate 34 on the lower floor. While the moving body 100 moves from the boarding / alighting plate 34 to the steps 30, the identification sticker 68 on the left side also moves to the horizontally moving part of the handrail belt 38, and the left sensor 110 can photograph the horizontally moving identification sticker 68 from directly above and acquire its image. The position where the image of this identification sticker 68 is photographed and acquired is called the "start position B", and as shown in FIG. 5(a), the image photographed here is called the "image at start position B". The reason why the position where the horizontally moving identification sticker 68 can be photographed from directly above is set as the start position is because at this position, the moving body main body 102 and the handrail belt 38 move almost horizontally and parallel to each other.

[0031] The moving object 100 on the steps 30 rises as shown in Fig. 1, and the identification sticker 68 on the handrail belt 38 moves in the same manner, so that the left sensor 110 continues to photograph the left identification sticker 68 as shown in Fig. 2 and stores the photograph in the memory unit 114. The moving object 100 also detects its moving speed V from the starting position B with its own speed sensor 128, and this moving speed V becomes the moving speed of the steps 30.

[0032] Next, the point immediately before the moving body 100 reaches the upper floor and moves from the steps 30 to the boarding board 32 of the upper floor is defined as "end position C" where the photographing of the identification sticker 68 on the left side ends, and the image photographed and acquired at this point is called the "image at end position C" as shown in Fig. 5(b). The reason this point is called "end position C" is that it is the last position where the horizontally moving identification sticker 68 can be photographed from directly above.

[0033] Next, the mobile object control unit 104 detects the position of the identification sticker 68 in the image at the start position B and the position of the identification sticker 68 in the image at the end position C. Then, the difference in the front-to-rear direction between the position of the identification sticker 68 in the image at the start position B and the position of the identification sticker 68 in the image at the end position C is set as the delay amount P.

[0034] Next, the moving body control unit 104 calculates the moving speed W of the left handrail belt 38 from the delay amount P. The moving distance of the left identification sticker 68 from the start position B to the end position C is known in advance, so this distance is taken as L. Also, the moving time of the moving body 100 (i.e., the step 30) from the start position B to the end position C is taken as t. Furthermore, the detected speed V of the speed sensor 128 provided on the moving body 100 is taken as the moving speed of the step 30. Then, V × t = L (1) Also, W × t = (LP) (2) By transforming these equations (1) and (2), t = L / V = (LP) / W (3) If we rearrange this in terms of W, we get W=(LP)V / L From the above, the movement speed W of the left handrail belt 38 can be calculated. If the handrail belt 38 is delayed and the movement speed W<threshold value W0, the mobile object control unit 104 determines that the movement of the left handrail belt 38 and the movement of the steps 30 are not synchronized, and conveys this to the communication unit 64 of the control device 50 via the mobile object communication unit 116, and the communication unit 64 notifies the external monitoring device 200. As a result, the external monitoring device 200 can determine that the steps 30 and the handrail belt 38 are not synchronized.

[0035] Also, if the handrail belt 38 does not lag behind and the moving speed W is equal to or greater than the threshold value W0, the moving object control unit 104 determines that the movement of the left handrail belt 38 and the movement of the steps 30 are synchronized.

[0036] In addition, the moving body control unit 104 can similarly determine whether the movement of the right handrail belt 38 and the movement of the steps 30 are synchronized by using the right identification sticker 68 and the right sensor 112 for the right handrail belt 38.

[0037] (5) Inspection of the damage to railing 36 Next, since glass balustrade 36 may develop breakage or cracks 4 as shown in Fig. 1, mobile body 100 automatically inspects it to detect these. While mobile body 100 moves from lower floor board 34 to upper floor board 32, it captures moving images of left side balustrade 36 with left camera 124 and stores them in memory unit 114.

[0038] As shown in Fig. 6(a), a reference image of the left-side balustrade 36 in a normal state, captured in advance, is compared frame by frame with a moving image of the left-side balustrade 36 to check whether there is any damage or cracks 4 in the left-side balustrade 36. If the comparison reveals damage or cracks 4 in the balustrade 36, as shown in Fig. 6(b), this is reported to the monitoring device 200. The location of the damage or crack 4 can be determined how many meters away from the position of the boarding and alighting board 34 on the lower floor using the moving speed V of the moving body 100, and the location is reported at the same time.

[0039] The right-side balustrade 36 is also photographed by the right camera 126 in the same manner as the left camera 124, and the photograph is compared with the reference image to check for any damage or cracks.

[0040] (6) Operational state of the moving body 100 during inspection Next, the operation of the moving body 100 when inspecting the escalator 10 will be described with reference to the flow chart of FIG.

[0041] In step S1, when the escalator 10 is in operation and there are no passengers, the inspection mode is started, and the process proceeds to step S2.

[0042] In step S2, the moving body 100 is moved from the standby position to the boarding / alighting board 34 on the lower floor side, and the process proceeds to step S3.

[0043] In step S3, the pair of left and right sensors 110 and 112 find the pair of left and right identification stickers 68, 68 at position A, and the process proceeds to step S4.

[0044] In step S4, the pair of left and right sensors 110 and 112 begin photographing the pair of left and right identification stickers 68, 68, and the pair of left and right cameras 124 and 126 begin photographing the pair of left and right balustrades 36, 36, and the process proceeds to step S5.

[0045] In step S5, the moving body 100 steps onto the steps 30 from the boarding / alighting plate 34 on the lower floor side, and an image of the identification sticker 68 at the start position B immediately after the moving body 100 steps onto the steps is photographed and acquired. Then, the process proceeds to step S6.

[0046] In step S6, the moving object 100 on the step 30 ascends while photographing the pair of left and right identification stickers 68, 68 with the left sensor 110 and the right sensor 112, and photographing the pair of left and right balustrades 36, 36 with the left camera 124 and the right camera 126, respectively. Then, it is detected whether the step 30 on which the moving object 100 is standing has ascended to the vicinity of the boarding / alighting board 32 on the upper floor, and if it has not reached the upper floor, the operation of step S6 is continued, and if the step 30 has reached the boarding / alighting board 32 on the upper floor, the operation proceeds to step S7.

[0047] In step S7, the moving body 100 is moved from the steps 30 to the boarding board 32 on the upper floor side, and an image taken immediately before the movement is acquired as an image at the end position C of the pair of left and right identification stickers 68, 68. Then, the process proceeds to step S8.

[0048] In step S8, when the vehicle gets on the boarding plate 32 on the upper floor side, the mobile object control unit 104 stops photographing the pair of left and right identification stickers 68, 68 and the pair of left and right balustrades 36, 36, and proceeds to step S9.

[0049] In step S9, the moving object control unit 104 calculates the delay amount P of each of the left and right handrail belts 38, and further determines whether or not it is synchronized with the movement of the steps 30, and then proceeds to step S10.

[0050] In step S10, the mobile object control unit 104 checks whether there are any abnormalities on each of the pair of left and right balustrades 36 from the lower floor to the upper floor, and then proceeds to step S11.

[0051] In step S11, if the movement of the pair of left and right handrail belts 38, 38 and the movement of the steps 30 are not synchronized, or if there is damage to the pair of left and right balustrades 36, 36, the inspection results are notified to the monitoring device 200 and the process proceeds to step S12.

[0052] In step S12, the moving body 100 is moved to a standby position, and the inspection mode is ended.

[0053] (7) Effects According to this embodiment, simply by moving the moving body 100 from the lower floor to the upper floor on the steps 30, it is possible to determine whether the movement of the pair of left and right handrail belts 38, 38 is synchronized with the movement of the steps 30, and also to inspect the damage condition of the pair of left and right balustrades 36, 36.

[0054] In addition, the monitoring device 200 will alert if the movement of the pair of left and right handrail belts 38, 38 and the movement of the steps 30 are not synchronized, or if there is damage to the pair of left and right railings 36, 36, so workers will be able to know in advance the need to replace parts such as the panels of the railing 36, key inspection items, and whether or not parts need to be replaced.

[0055] (8) Example of changes In the above embodiment, the moving body 100 was inspected for both the synchronization state between the movement of the handrail belt 38 and the movement of the steps 30, and the damage state of the balustrade 36. However, instead, it is also possible to inspect only the synchronous speed of the handrail belt 38, or only the damage state of the balustrade 36.

[0056] In addition, although the above embodiment has been described with reference to the escalator 10 ascending, when the escalator descends, the mobile body 100 may be placed on the steps 30 and moved from the upper floor to the lower floor to check the synchronization between the movement of the handrail belt 38 and the movement of the steps 30 and the state of damage to the balustrade 36.

[0057] In addition, in the above embodiment, the moving speed W of the handrail belt 38 is calculated, but instead, the amount of delay P may be compared with a predetermined threshold value P1, and if P<=P1, it may be determined that the handrail belt 38 is not synchronized with the movement of the steps 30.

[0058] In the above embodiment, the circular identification sticker 68 is used as the identifier, but an identification sticker of another shape may be used instead.

[0059] In the above embodiment, the moving body 100 is provided with a speed sensor 128, and the detected speed is taken as the moving speed V of the steps 30. However, instead, the moving speed V of the steps 30 may be obtained from the rotational speed of the step sprocket 24, etc.

[0060] Furthermore, the "start position" and "end position" in the above embodiment are not limited to the above example, and may be set between one boarding / alighting entrance and the other boarding / alighting entrance where the handrail belt 38 is running and the mobile body 100 is moving on the steps 30.

[0061] In the above embodiment, the invention has been described as being applied to the escalator 10, but it may instead be applied to a moving walkway. Note that on a moving walkway, steps are called "steps".

[0062] 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 their modifications are included in the scope and gist of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0063] 10 escalator, 30 steps, 32 board, 36 balustrade, 38 handrail belt, 68 identification sticker, 100 moving body, 102 moving body main body, 104 moving body control unit, 110 left sensor, 112 right sensor, 124 left camera, 126 right camera, 128 speed sensor, 200 monitoring device

Claims

1. In a passenger conveyor system including a passenger conveyor and a moving body, The passenger conveyor includes: A pair of left and right handrails provided in the front-back direction between one boarding / alighting entrance and the other boarding / alighting entrance; A step that moves in the front-back direction between the pair of left and right handrails; A pair of left and right handrail belts that run synchronously with the steps on the upper parts of the pair of left and right handrails; A pair of left and right identifiers provided on the pair of left and right handrail belts; having The moving body is A mobile body that moves on the steps from one of the boarding / alighting entrances to the other of the boarding / alighting entrances; a pair of left and right image sensors provided on the moving body for detecting the pair of left and right identifiers; A moving object control unit; having the pair of left and right image sensors detect the position of the identifier in an image acquired at a predetermined start position while the mobile body moves on the steps from one of the boarding / alighting entrances to the other of the boarding / alighting entrances, and the position of the identifier in an image acquired at an end position that is on the other of the boarding / alighting entrances side from the start position; the moving object control unit obtains a delay amount in a front-to-rear direction between a position of the identifier in the image at the start position and a position of the identifier in the image at the end position, and judges whether or not the movement of the step and the movement of the handrail belt are synchronized from the delay amount. A passenger conveyor system comprising:

2. The moving body has a speed sensor that detects the moving speed of the moving body itself, The moving object control unit includes: Calculating the moving speed of the handrail belt from the delay amount; comparing the moving speed of the moving body with the moving speed of the handrail belt to determine whether the movement of the steps and the movement of the handrail belt are synchronized; 2. The passenger conveyor system of claim 1.

3. In a passenger conveyor system including a passenger conveyor and a moving body, The passenger conveyor includes: A pair of left and right handrails provided in the front-back direction between one boarding / alighting entrance and the other boarding / alighting entrance; A step that moves in the front-back direction between the pair of left and right handrails; A pair of left and right handrail belts that run synchronously with the steps on the upper parts of the pair of left and right handrails; having The moving body is A mobile body that moves on the steps from one of the boarding / alighting entrances to the other of the boarding / alighting entrances; A pair of left and right cameras are provided on the moving body and capture the left and right pair of railings; A moving object control unit; having The mobile body control unit compares images captured by the pair of left and right cameras while the mobile body moves on the steps from one of the boarding / alighting entrances to the other boarding / alighting entrance with a pre-stored reference image to detect a damaged state of the balustrade. A passenger conveyor system comprising:

4. A moving body that moves in the front-rear direction on a step from one boarding / alighting entrance of the passenger conveyor to the other boarding / alighting entrance of the passenger conveyor; A pair of left and right image sensors are provided on the moving body to detect a pair of left and right identifiers provided on a pair of left and right handrail belts of the passenger conveyor, respectively; A moving object control unit; having the pair of left and right image sensors detect the position of the identifier in an image acquired at a predetermined start position while the mobile body moves on the steps from one of the boarding / alighting entrances to the other of the boarding / alighting entrances, and the position of the identifier in an image acquired at an end position that is on the other of the boarding / alighting entrances side from the start position; the moving object control unit obtains a delay amount in a front-to-rear direction between a position of the identifier in the image at the start position and a position of the identifier in the image at the end position, and judges whether or not the movement of the step and the movement of the handrail belt are synchronized from the delay amount. A moving object characterized by:

5. A moving body that moves on steps from one boarding / alighting entrance of the passenger conveyor to the other boarding / alighting entrance of the passenger conveyor; A pair of left and right cameras are provided on the moving body and photograph a pair of left and right railings; A moving object control unit; having The mobile body control unit compares images captured by the pair of left and right cameras while the mobile body moves on the steps from one of the boarding / alighting entrances to the other boarding / alighting entrance with a pre-stored reference image to detect a damaged state of the balustrade. A moving object characterized by:

Images