Passenger conveyor inspection device and passenger conveyor inspection method

Abstract

To provide a passenger conveyor inspection device by which a maintenance person can quickly grasp abnormality in all steps.SOLUTION: A passenger conveyor inspection device includes: a detection unit for detecting abnormality relating to each of a plurality of steps based on sensor information acquired by a sensor during a predetermined period in which at least one cycle of the plurality of steps is performed; a generation unit for identifying a step in which abnormality is detected by the detection unit based on an image photographed by an imaging device during the predetermined period of each of the plurality of steps and generating inspection result information obtained by associating abnormality information showing the abnormality with step information showing the step in which the abnormality is detected among arrangement information where step information showing each of the plurality of steps is arranged; and an output unit for outputting the inspection result information generated by the generation unit.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention generally relates to technology for assisting inspection of passenger conveyors. [Background technology]

[0002] During passenger conveyor maintenance work, when replacing steps, the steps are removed and reinstalled by removing and reinstalling the bolts that secure the steps to the chain (step fixing bolts). The main inspection check items include rust, distortion, dirt, damage, and abnormal noises on the steps, as well as whether the step fixing bolts have been tightened. Traditionally, these inspections have been carried out visually. The person in charge of the work enters the results of the inspection into an inspection record sheet each time an inspection is carried out, and based on the record sheet, identifies the location of any steps that are found to be abnormal and require reinspection. However, as the number of units and models to be maintained increases, the risk of inspection defects tends to increase.

[0003] Recently, an abnormality detection system for a passenger conveyor has been disclosed that identifies the position of a step where an abnormality is detected during operation of the passenger conveyor and issues an alarm (see Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-099314 Summary of the Invention [Problem to be solved by the invention]

[0005] In the technology described in Patent Document 1, when an abnormality in a step is detected, the abnormal step position is identified from the reference step position and an alarm is issued, so that the maintenance personnel can grasp the abnormality for each step. However, with the technology described in Patent Document 1, it is difficult for the maintenance personnel to grasp the degree of abnormality and where the abnormality is located.

[0006] The present invention has been made in consideration of the above points, and aims to propose a passenger conveyor inspection device etc. that allows maintenance personnel to properly grasp abnormalities in all steps. [Means for solving the problem]

[0007] In order to solve this problem, the present invention provides a passenger conveyor inspection device for inspecting a passenger conveyor having a plurality of steps that rotate in a circular motion, the passenger conveyor inspection device comprising: a detection unit that detects an abnormality relating to each of the plurality of steps based on sensor information acquired by a sensor during a predetermined period in which the plurality of steps rotate at least once; a generation unit that identifies a step in which an abnormality has been detected by the detection unit based on images of each of the plurality of steps taken by an imaging device during the predetermined period, and generates inspection result information in which anomaly information indicating the abnormality is associated with step information indicating the step in which the abnormality was detected among arrangement information in which step information indicating each of the plurality of steps is arranged; and an output unit that outputs the inspection result information generated by the generation unit.

[0008] In the above configuration, abnormality information indicating detected abnormalities is output in association with the placement information, so that, for example, a maintenance worker can check the positional relationship of abnormalities for all steps and properly grasp the extent of the abnormalities and where the abnormalities are located. [Effects of the Invention]

[0009] According to the present invention, a highly convenient passenger conveyor inspection device can be realized. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a diagram showing an example of a passenger conveyor inspection system according to a first embodiment. [Figure 2] FIG. 2 is a diagram showing an example of a fixture according to the first embodiment. [Figure 3]FIG. 2 is a diagram showing an example of an image according to the first embodiment. [Figure 4] 1 is a diagram showing an example of the configuration of a passenger conveyor inspection system according to a first embodiment. [Figure 5] FIG. 10 is a diagram showing an example of a processing flow of the photographing terminal according to the first embodiment. [Figure 6] FIG. 4 is a diagram illustrating an example of an inspection process according to the first embodiment. [Figure 7] FIG. 10 is a diagram illustrating an example of an additional confirmation process according to the first exemplary embodiment. [Figure 8] 5A and 5B are diagrams showing examples of step arrangement information and inspection result information according to the first embodiment. [Figure 9] FIG. 4 is a diagram showing an example of a reference step according to the first embodiment. [Figure 10] FIG. 4 is a diagram showing an example of inspection record information according to the first embodiment. [Figure 11] FIG. 10 is a diagram showing an example of an inspection screen according to the first embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] (I) First embodiment An embodiment of the present invention will be described in detail below, but the present invention is not limited to the embodiment.

[0012] The passenger conveyor inspection system of this embodiment is a system that inspects for abnormalities related to steps in a passenger conveyor that has multiple steps that can be connected to a circulating chain. Here, an abnormality is an abnormality that requires inspection, and includes abnormalities that affect the operation of the passenger conveyor and abnormalities that do not affect the operation of the passenger conveyor. Examples of abnormalities include improper fastening of step fixing bolts that secure each step to the chain, rust on each step, distortion on each step, dirt on each step, breakage on each step, and abnormal noise from each step. For example, this passenger conveyor inspection system assigns identification numbers to images that indicate steps extracted from images captured by a photographing terminal, generates a step layout map that shows the overall connection relationship of the steps, and outputs the step layout map with the inspection results for each step associated with it.

[0013] According to the above configuration, for example, a maintenance person such as a worker or a work manager can confirm the inspection points and the inspection order based on the step layout map.

[0014] Next, an embodiment of the present invention will be described with reference to the drawings. The following description and drawings are examples for explaining the present invention, and some omissions and simplifications have been made as appropriate for clarity of explanation. The present invention can be implemented in various other forms. Unless otherwise specified, each component may be singular or plural.

[0015] In the following description, identical elements in the drawings are given the same numbers, and descriptions thereof are omitted as appropriate. When describing elements of the same type without distinguishing between them, the common portion (the portion excluding the branch number) of the reference sign including the branch number may be used, and when describing elements of the same type while distinguishing between them, the reference sign including the branch number may be used. For example, when describing an inspection status image without distinguishing between them, it may be written as "inspection status image 1102," and when describing individual inspection status images while distinguishing between them, it may be written as "inspection status image 1102-1," "inspection status image 1102-2," etc.

[0016] The designations "first," "second," "third," etc. in this specification are used to identify components and do not necessarily limit the number or order. Furthermore, numbers used to identify components are used in different contexts, and numbers used in one context do not necessarily indicate the same configuration in another context. Furthermore, this does not prevent a component identified by a certain number from also serving the function of a component identified by another number.

[0017] Fig. 1 is a diagram showing an example of a passenger conveyor inspection system 100. The passenger conveyor inspection system 100 will be described using Figs. 1 to 3 as appropriate. The passenger conveyor may be an escalator, a moving walkway, or the like, and the following description will be given taking an escalator 110 as an example of the passenger conveyor.

[0018] As shown in Figure 1, escalator 110 is composed of escalator body 111, escalator guide section 112 to which handrails and the like are attached, steps 113 connected to a rotating body such as a chain, and control panel 114 that controls the rotating body.

[0019] Here, inspection of the fasteners (step fixing bolts and washers) that fix the steps 113 to the rotating body is carried out by utilizing the property that the steps 113 are visible when folded back. More specifically, an image capturing terminal 117 is installed in an inspection opening (first inspection hatch) in the lower boarding / alighting section 115 of the escalator 110 or an inspection opening (second inspection hatch) in the upper boarding / alighting section 116 of the escalator 110, and the image of the fasteners is captured by the image capturing terminal 117.

[0020] FIG. 2 is a diagram showing an example of a fixing device (a step fixing bolt 201 and a red washer 202).

[0021] The first state 210 shows the red washer 202 before the step fixing bolt 201 has been completely tightened. In the first state 210, the three tongues of the red washer 202 are parallel to the x and y directions (for example, horizontal), and the surface is metallic in color. In contrast, the second state 220 shows the red washer 202 after the step fixing bolt 201 has been completely tightened. A maintenance worker bends one of the three tongues of the red washer 202 in a direction parallel to the z direction (for example, vertical), thereby revealing the red color 203 painted on the back surface of the red washer 202.

[0022] In this embodiment, since the bent tongue of the red washer 202 (indicated by the red color 203) confirms that the step fixing bolt 201 is properly installed, it is preferable that the bent tongue be the tongue that is most easily visible to a maintenance worker. Here, the washer inserted into the step fixing bolt 201 is not limited to the red washer 202. For example, the back surface of the washer may be a predetermined color (e.g., green, a color not found in the components of the step 113). Also, for example, the number of tongues (bent portions) of the washer is not limited to three, but may be one, or two or more. Also, for example, the red washer 202 may not be provided. In this case, for example, part or all of the step fixing bolt 201 is colored a predetermined color (e.g., red).

[0023] FIG. 3 is a diagram showing an example of an image (image 300) of a fixture (step fixing bolt 201 and red washer 202) photographed by the photographing terminal 117.

[0024] Since step 113 is fixed with two step fixing bolts 201 on the left and right, image 300 includes fixture image 301 corresponding to the fixture on the left side of step 113 (left side of the drawing) and fixture image 302 corresponding to the fixture on the right side of step 113 (right side of the drawing).

[0025] It is possible to photograph two fixing devices using one photographing terminal 117, but depending on the performance of the photographing terminal 117, if it is difficult for the camera of one photographing terminal 117 to fit two fixing devices into one screen (same angle of view) due to viewing angle issues, it is also possible to photograph the left and right fixing devices simultaneously using two photographing terminals 117.

[0026] Fig. 4 is a diagram showing an example of the configuration of passenger conveyor inspection system 100. As shown in Fig. 4, passenger conveyor inspection system 100 includes an image capturing terminal 117 and a storage device 400. Image capturing terminal 117 and storage device 400 are connected to each other via a network 401 so as to be able to communicate with each other.

[0027] The photographing terminal 117 is an example of a passenger conveyor inspection device. The photographing terminal 117 may be a smartphone, tablet terminal, laptop computer, or the like, which has an imaging function, an information processing function, and a display function, or may be realized by combining an imaging means such as a digital camera or a digital video camera, an information processing means such as a processor, and a display means such as a display. For example, the photographing terminal 117 includes a processor 410, a main memory device 420, an auxiliary memory device 430, an input device 440, an output device 450, a communication device 460, and an photographing device 470.

[0028] The storage device 400 is a hard disk drive (HDD), a solid state drive (SSD), or the like that stores data. The storage device 400 may be included in the photographing terminal 117, may be connected to the photographing terminal 117 without going through the network 401, or may not be provided at all. If the storage device 400 is not provided, the data is stored in the auxiliary storage device 430.

[0029] The processor 410 is a device that performs arithmetic processing. The processor 410 is, for example, a CPU (Central Processing Unit), an MPU (Micro Processing Unit), a GPU (Graphics Processing Unit), an AI (Artificial Intelligence) chip, etc. The main memory device 420 is a device that stores programs, data, etc. The main memory device 420 is, for example, a ROM (Read Only Memory), a RAM (Random Access Memory), etc. The ROM is, for example, an SRAM (Static Random Access Memory), an NVRAM (Non Volatile RAM), a Mask ROM (Mask Read Only Memory), a PROM (Programmable ROM), etc. The RAM is, for example, a DRAM (Dynamic Random Access Memory).

[0030] The auxiliary storage device 430 is a HDD, a flash memory, an optical storage device, etc. Examples of optical storage devices include a CD (Compact Disc) and a DVD (Digital Versatile Disc). Programs, data, etc. stored in the auxiliary storage device 430 are loaded into the main storage device 420 as needed. The input device 440 is a user interface for inputting various types of information. Examples of the input device 440 include a device for accepting information from a user (such as a keyboard, a mouse, a card reader, or a touch panel), and a sensor for acquiring external information. Examples of the sensor include a camera, a sound sensor (vibration sensor), a LiDAR (Light Detection and Ranging), a magnetic sensor, an acceleration sensor, a tilt sensor, and a gyro sensor. The output device 450 is a user interface for outputting various types of information (such as display output, audio output, or print output). Examples of the output device 450 include a display device for visualizing various types of information, an audio output device (speaker), a printer, etc. Examples of the display device include an LCD (Liquid Crystal Display), a graphics card, etc.

[0031] The communication device 460 is a communication interface that communicates with other devices via a communication medium. The communication device 460 is, for example, a network interface card (NIC), a wireless communication module, a universal serial interface (USB) module, a serial communication module, etc. The communication device 460 can also function as an input device that receives information from other devices (e.g., sensors) that are communicatively connected. The communication device 460 can also function as an output device that transmits information to other devices that are communicatively connected. The imaging device 470 includes an imaging lens, an imaging element, etc., and converts an optical image formed by the imaging lens into an electrical signal using the imaging element. The imaging device 470 is configured with a complementary metal oxide semiconductor (CMOS) sensor, a charge coupled device (CCD) sensor, etc.

[0032] Here, the functions of the photographing terminal 117 (detection unit 421, generation unit 422, input unit 423, output unit 424, drive unit 425, etc.) may be realized, for example, by the processor 410 reading a program stored in the auxiliary storage device 430 into the main storage device 420 and executing it (software), or may be realized by hardware such as a dedicated circuit, or may be realized by a combination of software and hardware. Note that one function of the photographing terminal 117 may be divided into multiple functions, or multiple functions may be integrated into one function. Also, some of the functions of the photographing terminal 117 may be provided as separate functions, or may be included in other functions. Also, some of the functions of the photographing terminal 117 may be realized by another computer that can communicate with the photographing terminal 117.

[0033] The detection unit 421 detects an abnormality related to each step 113 based on information acquired by the input device 440, for example, during a predetermined period in which each step 113 has driven at least one revolution. The generation unit 422 identifies the step 113 in which the detection unit 421 detected an abnormality, for example, based on images captured by the imaging device 470 during the predetermined period, and generates inspection result information in which anomaly information indicating the abnormality is associated with step information indicating the step 113 in which the abnormality was detected, among step arrangement information in which step information indicating each step 113 is arranged. The input unit 423 inputs, for example, implementation information indicating that an action has been taken to address the abnormality related to the step 113. The output unit 424 outputs, for example, the inspection result information generated by the generation unit 422. The drive unit 425 sequentially drives the steps 113 in which the detection unit 421 detected an abnormality to the inspection hatch, for example, based on the inspection result information generated by the generation unit 422.

[0034] 5 is a diagram showing an example of a processing flow of the photographing terminal 117. The storage device 400 connected to the photographing terminal 117 includes a maintenance DB 500. The maintenance DB 500 stores information indicating a plan for the checking work (work plan information), inspection record information (for example, information that accumulates inspection result information 509 indicating the results of the inspection), etc.

[0035] The detection unit 421 performs processing related to image capture in the image capture device 470 to acquire video 501. The detection unit 421 performs image processing on the video 501 to acquire still images 502. The detection unit 421 performs subsequent processing on the acquired still images 502 in order.

[0036] The detection unit 421 extracts an image showing a fastener from the still image 502 (a fastening inspection image 503 used to determine whether the fastening state of the fastener is good or bad). The detection unit 421 also determines whether a step 113 has been detected from the still image 502 (step determination 504). If the detection unit 421 detects a step 113, it extracts (detects) the red color 203 of the red washer 202 from the fastening inspection image 503 showing the fastener for fixing the step 113, and determines whether the fastening state of the step fixing bolt 201 is good or bad (red color determination 505). For example, the detection unit 421 determines that a step fixing bolt 201 in which the red color 203 is detected is properly installed (pass 506), and determines that a step fixing bolt 201 in which the red color 203 is not detected is not properly installed (fail 507).

[0037] When the detection unit 421 detects a step 113, the generation unit 422 assigns an identification number to the still image 502 that shows the step 113, and generates step arrangement information 508. The generation unit 422 then records the result of the pass / fail judgment made by the detection unit 421 in the step arrangement information 508 for each step 113, and generates inspection result information 509. The detection unit 421 also detects any abnormalities related to the step 113 other than the fastener abnormality, and records these in the step arrangement information 508 for each step 113. That is, in addition to the pass / fail judgment result, the inspection result information 509 also records information on other check items during the inspection of the step 113, such as rust, distortion, dirt, damage, and abnormal noise of the step 113. The detection (inspection) of an abnormality related to the step 113 will be described later using FIGS. 6 and 7. The step arrangement information 508 and the inspection result information 509 will be described later using FIG. 8.

[0038] In response to the maintenance worker's operation of input device 440, input unit 423 inputs an inspection instruction to inspect step 113 in which an abnormality has been detected by detection unit 421, or inputs implementation information indicating that detection unit 421 has implemented measures to address the abnormality. Output unit 424 outputs inspection result information 509 to output device 450, overlays inspection result information 509 on an image of the actual escalator showing escalator 110 and outputs the same to output device 450, or stores inspection result information 509 in maintenance DB 500. When an inspection instruction is input by input unit 423, drive unit 425 instructs escalator 110 (control panel 114) to move circulating steps 113 to a position where the abnormality detected by detection unit 421 can be inspected.

[0039] 6 and 7 are diagrams showing an example of a process (inspection process) relating to the inspection of the escalator 110. The inspection process will be described below.

[0040] In S601, the photographing terminal 117 marks the start position of the inspection. For example, the photographing terminal 117 sets step 113, where photographing starts, as a reference step and marks the reference step so that it can be identified when photographing. Marking methods include marking the step 113 with an easily peelable sticker or a pen that can erase the mark, or using a scratch or the like that can identify the step 113 as a mark. The reference step will be described later using FIG. 9.

[0041] In S602, the photographing terminal 117 starts photographing based on an instruction to start photographing from the maintenance worker. For example, the maintenance worker sets the photographing conditions of the photographing terminal 117, such as the camera's viewing angle, resolution, frame rate, focus, etc., which are optimal conditions for photographing the fixture and the related check items, and presses the recording start button on the photographing terminal 117.

[0042] In S603, the maintenance person operates the control panel 114, the maintenance person terminal (not shown), or the photographing terminal 117, and rotates the escalator 110 approximately one revolution while photographing is being performed by the photographing terminal 117.

[0043] In S604, the photographing terminal 117 ends photographing based on an instruction to end photographing from the maintenance worker. For example, the maintenance worker starts the rotation of the escalator 110 starting from the reference step, and when the maintenance worker confirms that the reference step is again displayed on the photographing screen, he presses the recording end button on the photographing terminal 117. Note that the photographing terminal 117 may automatically end photographing based on the detection of the reference step.

[0044] The photographing terminal 117 stores the photographed video 501 in the auxiliary storage device 430. The photographing terminal 117 also acquires sound in addition to the video 501, and stores sound data of the acquired sound in the auxiliary storage device 430.

[0045] In S605, the photographing terminal 117 acquires still images 502. For example, the photographing terminal 117 divides the video 501 of one rotation of the escalator 110 into still images 502. If the video 501 is shot at 30 frames per second, 1,800 still images 502 divided into 1,800 pieces are obtained by shooting for one minute.

[0046] In S606, the photographing terminal 117 extracts, by image processing, a still image 502 (fastening inspection image 503) that shows a fixing tool that is present between steps 113 and 113. Note that the fastening inspection image 503 can be extracted, for example, by detecting it using difference information between the still image 502 and a reference image prepared in advance (for example, a still image that shows the step fixing bolt 201 and / or a still image that does not show the step fixing bolt 201).

[0047] In S607, the photographing terminal 117 generates step arrangement information 508. For example, the photographing terminal 117 sequentially assigns an identification number to each extracted still image 502 (step image) showing a step 113, and confirms that identification numbers have been assigned to all of the steps 113 in one revolution. Thereafter, the photographing terminal 117 generates step arrangement information 508 indicating the connection relationship for each step 113, with the reference step as the starting position. Note that methods for extracting step images include, for example, detecting the step images using difference information between the still image 502 and a previously prepared reference image (a still image showing the step 113 and / or a still image not showing the step 113), detecting the step images using a break in the demarcation of the step 113, and the like.

[0048] Additionally, step arrangement information 508 may be provided for each model of escalator 110 and stored in auxiliary storage device 430 before the inspection process.

[0049] In S608, the photographing terminal 117 detects an abnormality related to the step 113. For example, the photographing terminal 117 determines whether the step fixing bolt 201 has been left tightened based on the detection of the red washer 202. As described above, the red washer 202 is bent by the maintenance worker after the step fixing bolt 201 has been tightened as proof that the inspection has been confirmed, and therefore, it is possible to determine whether the step fixing bolt 201 has been left tightened by detecting the red washer 202.

[0050] In this embodiment, the photographing terminal 117 determines that the tightening work was performed normally for a step fixing bolt 201 for which the red washer 202 could be detected, and determines that there is an abnormality in the tightening work for some reason for a step fixing bolt 201 for which the red washer 202 could not be detected. For example, if the photographing terminal 117 determines that there is an abnormality in the tightening work at a predetermined step 113 based on the fastening inspection image 503, it generates inspection result information 509 in which abnormality information indicating that there is an abnormality in the tightening work at that step 113 is associated with step information indicating that step 113 in the step arrangement information 508.

[0051] Furthermore, for example, the photographing terminal 117 detects abnormalities such as rust on the step 113, distortion on the step 113, dirt on the step 113, and damage to the step 113 (scratches on the step 113, cracks on the step 113) from the step image. More specifically, the photographing terminal 117 detects rust on the step 113, distortion on the step 113, dirt on the step 113, and damage to the step 113 by calculating the difference between a step image (still image 502) of the step 113 photographed during inspection and a still image of a normal step 113 prepared in advance that is free of rust, distortion, dirt, and damage. For example, when the photographing terminal 117 detects rust on the step 113, distortion on the step 113, dirt on the step 113, or damage to the step 113 based on a predetermined step image, it generates inspection result information 509 in which abnormality information indicating that the step 113 has rust, distortion, dirt, or damage is associated with step information indicating the step 113 in the step arrangement information 508.

[0052] In S609, the photographing terminal 117 determines whether or not abnormality detection has been performed for all steps 113. If the photographing terminal 117 determines that abnormality detection has been performed for all steps 113, it moves the process to S610, and if the photographing terminal 117 determines that abnormality detection has not been performed for all steps 113 (there are unprocessed steps 113), it moves the process to S608.

[0053] Furthermore, in addition to or instead of detecting the abnormality described above, the photographing terminal 117 may detect abnormal sounds related to the step 113 based on the still image 502 and sound data. For example, when the photographing terminal 117 detects an abnormal sound based on the difference between sound data of the step 113 acquired during inspection and normal sound data generated when the step 113 rotates normally, the photographing terminal 117 identifies the step 113 to which the abnormal sound was closest based on the still image 502, and determines that the abnormal sound is related to the identified step 113. When the photographing terminal 117 detects an abnormal sound from the step 113, it generates inspection result information 509 in which anomaly information indicating that an abnormal sound is caused by the step 113 is associated with step information indicating the step 113 in the step arrangement information 508.

[0054] In S610, an additional confirmation process is performed, which will be described later with reference to FIG.

[0055] In S611, the photographing terminal 117 stores the inspection record information including part or all of the inspection result information 509 when the additional confirmation process was performed in the maintenance DB 500, and ends the inspection process. The inspection record information will be described later with reference to FIG. 10.

[0056] FIG. 7 is a diagram illustrating an example of the additional confirmation process.

[0057] In S701, the photographing terminal 117 displays an inspection screen on the output device 450. For example, the photographing terminal 117 generates an inspection screen for supporting confirmation of anomalies and responses to the anomalies, based on the inspection result information 509 and the two-dimensional and three-dimensional design information of the actual escalator 110. The inspection screen will be described later with reference to FIG.

[0058] In S702, the maintenance worker aligns the position of the step 113 with the position of the actual step image on the inspection screen. For example, in order to align the reference step of the escalator 110 with the photographing position, the maintenance worker circulates the step 113 of the escalator 110, stops the reference step at the photographing position, and then inputs via the inspection screen that the positions have been aligned (for example, by pressing the SET button 1111 described below).

[0059] In S703, the photographing terminal 117 stops the step 113 in which the abnormality was detected at the photographing position. For example, when an input to confirm the abnormality is received via the inspection screen (for example, the NEXT button 1116 described below is pressed), the photographing terminal 117 moves the step 113 in a circular motion in a predetermined direction and stops the step 113 in which the abnormality was detected at the photographing position. Note that when the photographing terminal 117 detects the reference step again (when the reference step has gone around once), it ends the additional confirmation process.

[0060] In S704, the maintenance person checks whether there is an abnormality in the fixing device, more specifically, visually checks from the photographing position to see if the red washer 202 is bent and whether there is any looseness in the step fixing bolt 201. If it is confirmed that there is no abnormality in the fixing device, the process of S705 is carried out, and if it is confirmed that there is an abnormality in the fixing device, the process of S707 is carried out.

[0061] In S705, the maintenance person checks for any abnormalities such as rust, distortion, dirt, damage, or abnormal noises in step 113, and determines whether or not to take action to address the abnormality. If it is determined that action should be taken to address the abnormality, the process of S706 is carried out, and if it is determined that action should not be taken to address the abnormality, the process of S709 is carried out.

[0062] In S706, the maintenance technician performs work to deal with the abnormality. For example, if the part in step 113 is found to have scratches, cracks, or the like, the maintenance technician replaces the part, or if an abnormal noise is detected in step 113, the maintenance technician performs acoustic analysis and replaces a drive system part. The maintenance technician may operate the imaging terminal 117 to send a notification message indicating that work to deal with the abnormality is required to the maintenance technician terminals carried by other maintenance technicians (information sharing).

[0063] In S707, the maintenance person retightens the step fixing bolt 201 and visually checks the fastening state of the step fixing bolt 201. In addition, the photographing terminal 117 may detect the red washer 202 as a double check.

[0064] In S708, the photographing terminal 117 updates the inspection result information 509. For example, when a maintenance person inputs implementation information indicating that an action has been taken to address the abnormality, such as by replacing a part in step 113, the photographing terminal 117 deletes the abnormality information indicating the abnormality that is associated with the step information indicating that step 113. Also, for example, when a maintenance person inputs implementation information indicating that a step fixing bolt 201 has been retightened, the photographing terminal 117 deletes the abnormality information indicating an abnormality in the tightening work that is associated with the step information indicating the step 113 fastened by that step fixing bolt 201.

[0065] In S709, the photographing terminal 117 determines whether or not all abnormalities have been checked (whether or not the process has ended). If the photographing terminal 117 determines that all abnormalities have been checked, it ends the additional checking process, and if it determines that all abnormalities have not been checked (there are unchecked abnormalities), it moves the process to S703.

[0066] FIG. 8 is a diagram showing an example of the step arrangement information 508 (step arrangement map 810) and an example of the inspection result information 509 (inspection result map 820).

[0067] In the step layout map 810, step frames 811 are arranged to indicate the connection relationships of the steps 113 provided on the escalator 110. More specifically, the step layout map 810 is divided into a front side 812 made up of step frames 811 indicating steps 113 where users can get on and off, and a back side 813 made up of step frames 811 indicating steps 113 where users cannot get on or off. In S607 described above, the step frame 811 indicating the reference step is determined as the reference step frame 814, and identification numbers ("1", "2", "3", ...) are assigned sequentially starting from the reference step.

[0068] Furthermore, if an abnormality related to step 113 is detected in S608 described above, an inspection result map 820 is generated based on the step layout map 810. Step frames 811 indicating steps 113 in which an abnormality was detected are associated with abnormality information according to the importance of the inspection. For example, a first color 821 (e.g., "red," indicating an emergency response) is added to step frames 811 indicating steps 113 in an emergency-level state requiring immediate inspection and response, and a second color 822 (e.g., "yellow," indicating a warning) is added to step frames 811 indicating steps 113 in a warning-level state with a lower urgency. A third color (e.g., "blue," indicating normal) may be added to step frames 811 indicating steps 113 in a normal-level state in which no abnormality has been detected, and a fourth color (e.g., "green," indicating caution) may be added to step frames 811 indicating steps 113 in a caution-level state. In addition to or instead of colors, the abnormality information may include a number or identification code indicating the inspection status, a message indicating the type or nature of the abnormality, or the like.

[0069] FIG. 9 is a diagram showing an example of a reference step (reference step 900).

[0070] As shown in FIG. 9 , a yellow-painted demarcation 902 is provided on a tread 901 of step 113. For example, step 113 is determined as a reference step 900 when there is a mark 903 such as noticeable dirt or dirt on tread 901, or a mark 904 such as peeling paint or dirt on demarcation 902. Alternatively, the mark may be, for example, a mark 905 in a color (e.g., red) different from the color of demarcation 902 that is permanently painted on an inconspicuous edge of demarcation 902. Alternatively, the mark may be, for example, a mark written with an erasable pen or a sticker that can be easily attached and removed, which may be used temporarily for inspection.

[0071] FIG. 10 is a diagram showing an example of inspection record information (inspection record table 1000).

[0072] As shown in Figure 10, the inspection record sheet 1000 has the following basic information for the inspection: a number 1001 that identifies the inspection of the escalator 110, a model number 1002 of the model of the escalator 110, an installation location 1003 of the escalator 110, an inspection date 1004, and a type of work 1005.

[0073] The red washer 1006 includes information indicating the results of a pass / fail judgment on the fastening state of the step fixing bolt 201 after the inspection of the step 113, as well as the captured image (fastening inspection image 503) actually used for the pass / fail judgment. The rust 1007 includes information on the results of the rust inspection on the tread 901 of the step 113. The distortion 1008 includes information on the results of the distortion inspection on the step 113. The demarcation 1009 includes information on the results of the inspection on the dirt and damage of the demarcation 902. The dust 1010 includes information on the results of the inspection on the dirt and dust on the step 113 and the dirt and dust inspection on the space between the steps 113. The abnormal noise 1011 includes information on the results of the inspection on the abnormal noise when a specific step 113 makes an abnormal noise while the escalator 110 is rotating. The notes 1012 record anything that the maintenance worker notices during the inspection other than the inspection items.

[0074] Although not shown, information relating to abnormalities in each step 113 of the inspection record sheet 1000 can be referenced via each step frame 811 on the inspection result map 820. In addition, the tightness of the bolts that secure the components in each step 113 is also listed as an inspection item, and it is expected that the number of inspection items will increase as necessary from the perspective of prioritizing safety inspections.

[0075] 11 is a diagram showing an example of an inspection screen (inspection screen 1100). The inspection screen 1100 is displayed on the photographing terminal 117.

[0076] The inspection screen 1100 includes an actual escalator image 1101 showing the escalator 110, an inspection status image 1102 showing the inspection status of each step 113 of the escalator 110, and a group of buttons for instructing the rotational movement of the escalator 110. The group of buttons includes a SET button 1111, an UP button 1112, a DOWN button 1113, a STOP button 1114, a MOVE button 1115, a NEXT button 1116, and the like.

[0077] Here, if an abnormality related to step 113 is detected, the inspection status image 1102 includes at least one of a color-coded display of the importance of the inspection, a display of the actual captured image in which the abnormality was detected, and a display of the status (inspection result) of step 113.

[0078] For example, inspection status image 1102-1 indicates that there is an abnormality in the demarcation of step 113. Inspection status image 1102-2 indicates that there is an abnormality in the fixture of step 113. Inspection status image 1102-3 indicates that there is an abnormality in damage to step 113.

[0079] In an inspection using the photographing terminal 117, first, in order to synchronize the reference step with the actual step image of the escalator image 1101, the maintenance person moves the reference step circularly to the photographing position and then presses the SET button 1111. Then, after an abnormality is detected, the maintenance person presses the NEXT button 1116 to move the step 113 in which the abnormality was detected circularly to the photographing position, checks the step 113, takes measures to address the abnormality as necessary, and inputs the results.

[0080] The maintenance worker can check the steps 113 that require inspection and re-inspection from the actual escalator image 1101, and circulate the steps 113 of the escalator 110 to a safe position where they can be removed. For such circulating movement, the UP button 1112 or DOWN button 1113 is designated depending on the direction of rotation, and the step 113 is rotated using the MOVE button 1115. When the step 113 has been moved to the desired position, the circulating movement of the step 113 is stopped using the STOP button 1114.

[0081] When a plurality of maintenance personnel work together, the inspection screen 1100 may be shared, and maintenance personnel A may provide maintenance personnel B with necessary information and instructions.

[0082] According to this embodiment, inspection of the passenger conveyor can be appropriately supported.

[0083] (II) Supplementary Note The above-described embodiment includes, for example, the following contents.

[0084] In the above-described embodiment, the present invention is described as being applied to a passenger conveyor inspection device, but the present invention is not limited to this and can be widely applied to various other systems, devices, methods, and programs.

[0085] In the above-described embodiments, some or all of the programs may be installed from a program source into a device such as a computer that implements the photographing terminal. The program source may be, for example, a program distribution server connected via a network or a computer-readable recording medium (e.g., a non-transitory recording medium). In the above description, two or more programs may be implemented as one program, or one program may be implemented as two or more programs.

[0086] Furthermore, in the above-described embodiments, the configuration of each table is an example, and one table may be divided into two or more tables, or all or part of two or more tables may be one table.

[0087] Furthermore, in the above-described embodiment, the screens shown and described are merely examples, and any design may be used as long as the information received is the same.

[0088] Furthermore, the screens shown and described in the above-described embodiment are merely examples, and any design may be used as long as the information presented is the same.

[0089] In the above-described embodiment, the output of information is not limited to display on a display screen, but may be audio output from a speaker, output to a file, printed on paper or the like by a printer, projected onto a screen or the like by a projector, or in other forms.

[0090] In addition, in the above description, information such as programs, tables, files, etc. that realize each function can be stored in a storage device such as a memory, a hard disk, or an SSD (Solid State Drive), or in a recording medium such as an IC card, an SD card, or a DVD.

[0091] The above-described embodiment has the following characteristic configurations, for example.

[0092] (1) A passenger conveyor inspection device (e.g., a photographing terminal 117) for inspecting a passenger conveyor (e.g., an escalator 110) having a plurality of steps (e.g., step 113) that are driven in a circular motion includes a detection unit (e.g., a detection unit 421, a circuit) that detects abnormalities (e.g., rust, distortion, dirt, damage, and abnormal sounds) related to each of the plurality of steps based on sensor information acquired by a sensor (e.g., an imaging device 470, an input device 440, and a sensor that can communicate with the photographing terminal 117) during a predetermined period in which the plurality of steps are driven at least once, and a detection unit (e.g., a detection unit 421, a circuit) that detects abnormalities (e.g., rust, distortion, dirt, damage, and abnormal sounds) related to each of the plurality of steps based on images (e.g., a video 501 and a still image 502) taken by the photographing device (e.g., the photographing device 470) during the predetermined period. and generates inspection result information (e.g., inspection result information 509, inspection result map 820) in which step information indicating the step in which the abnormality was detected (e.g., first color 821, second color 822, number or identification code indicating the inspection status, wording indicating the type or content of the abnormality) is associated with step information indicating the step in which the abnormality was detected among arrangement information (e.g., step arrangement information 508, step arrangement map 810) in which step information indicating each of the plurality of steps (e.g., step information indicating step 113, step frame 811) is arranged, and an output unit (e.g., output unit 424, circuit) that outputs the inspection result information generated by the generation unit.

[0093] In the above configuration, abnormality information indicating detected abnormalities is output in association with the placement information, so that, for example, a maintenance worker can check the positional relationship of abnormalities for all steps and properly grasp the extent of the abnormalities and where the abnormalities are located.

[0094] (2) The passenger conveyor inspection device is equipped with an input unit (e.g., input unit 423, circuit) that can input information, and the generation unit deletes the abnormality information indicating the abnormality that is associated with the step information indicating the specified step based on implementation information indicating that a response to the abnormality related to the specified step input by the input unit has been implemented (e.g., see S708).

[0095] According to the above configuration, for example, a maintenance worker can input implementation information indicating that a response has been taken to a detected abnormality, which will delete the abnormality information indicating that abnormality, allowing the maintenance worker to easily check for unaddressed abnormalities and obtain inspection result information as inspection record information.

[0096] (3) The output unit displays an image showing the passenger conveyor (e.g., an actual escalator image 1101 showing the escalator 110) on a display (e.g., the output device 450), and when the detection unit detects an abnormality related to a specified step, it displays an image showing the abnormality (e.g., an inspection status image 1102) superimposed on the image showing the specified step (e.g., the actual step image) on the display (e.g., see Figure 11).

[0097] According to the above configuration, for example, a maintenance person can grasp abnormalities related to the steps in accordance with the actual passenger conveyor, and therefore inspection can be carried out quickly.

[0098] (4) The photographing device is installed at an inspection hatch (e.g., a first inspection hatch, a second inspection hatch) of the passenger conveyor, and the passenger conveyor inspection device is equipped with a drive unit (e.g., drive unit 425, circuit) that can sequentially drive steps in which an abnormality has been detected by the detection unit to the inspection hatch based on the inspection result information.

[0099] According to the above configuration, for example, a step in which an abnormality is detected is moved to an inspection hatch, allowing a maintenance worker to quickly carry out an inspection.

[0100] (5) When the detection unit detects an abnormality related to a specified step, the generation unit associates importance information indicating the importance of inspection for the abnormality (e.g., emergency response level, warning level, caution level, normal level) with step information indicating the specified step.

[0101] According to the above configuration, since importance information indicating the importance of the inspection is associated with the step information, for example, a maintenance worker can carry out the inspection taking the importance into consideration.

[0102] Furthermore, the above-described configurations may be modified, rearranged, combined, or omitted as appropriate within the scope of the present invention.

[0103] It should be understood that items included in a list in the format "at least one of A, B, and C" can mean (A), (B), (C), (A and B), (A and C), (B and C), or (A, B, and C). Similarly, items listed in the format "at least one of A, B, or C" can mean (A), (B), (C), (A and B), (A and C), (B and C), or (A, B, and C). [Explanation of symbols]

[0104] 421...detection unit, 422...generation unit, 423...input unit, 424...output unit, 425...drive unit.

Claims

1. A passenger conveyor inspection device for inspecting a passenger conveyor having a plurality of circularly driven steps, a detection unit that detects an abnormality related to each of the plurality of steps based on sensor information acquired by a sensor during a predetermined period in which the plurality of steps are driven at least once; a generation unit that identifies a step in which an abnormality has been detected by the detection unit based on images of each of the plurality of steps taken by an imaging device during the predetermined period, and generates an inspection result map in which anomaly information indicating the abnormality is associated with step information indicating the step in which the abnormality has been detected in a step layout map in which step information indicating each of the plurality of steps is arranged; and an output unit that outputs the inspection result map generated by the generation unit; Equipped with when the detection unit detects an abnormality related to a predetermined step, the generation unit associates importance information indicating the importance of an inspection for the abnormality with step information indicating the predetermined step; the step layout map indicates a connection relationship of step information of steps provided on the passenger conveyor; For each step, the step information includes information indicating a front side where a user can get on and off and a back side where a user cannot get on and off, In the inspection result map, the anomaly information is associated with step information of the predetermined step in which the anomaly was detected, among step information on the front side and the back side of each step shown in the step layout map, according to the importance represented by the importance information associated with the step information. Passenger conveyor inspection device.

2. An input unit capable of inputting information, the generation unit deletes the anomaly information indicating the anomaly that is associated with the step information indicating the predetermined step, based on implementation information indicating that a response to the anomaly related to the predetermined step has been implemented, which is input by the input unit.

2. The passenger conveyor inspection device according to claim 1.

3. the output unit displays an image showing the passenger conveyor on a display, and when the detection unit detects an abnormality related to a predetermined step, displays an image showing the abnormality superimposed on the image showing the predetermined step on the display.

3. The passenger conveyor inspection device according to claim 2.

4. the photographing device is installed at an inspection hatch of the passenger conveyor, A drive unit is provided that can sequentially drive steps in which an abnormality has been detected by the detection unit to the inspection hatch based on the inspection result map.

3. The passenger conveyor inspection device according to claim 2.

5. 1. A passenger conveyor inspection method for inspecting a passenger conveyor having a plurality of circularly driven steps, comprising: a detection unit detecting an abnormality related to each of the plurality of steps based on sensor information acquired by a sensor during a predetermined period in which the plurality of steps are driven at least once; a generation unit identifies a step in which an abnormality has been detected by the detection unit based on images of each of the plurality of steps taken by an imaging device during the predetermined period, and generates an inspection result map in which anomaly information indicating the abnormality is associated with step information indicating the step in which the abnormality has been detected in a step arrangement map in which step information indicating each of the plurality of steps is arranged; an output unit that outputs the inspection result map generated by the generation unit; Including, when the detection unit detects an abnormality related to a predetermined step, the generation unit associates importance information indicating the importance of an inspection for the abnormality with step information indicating the predetermined step; the step layout map indicates a connection relationship of step information of steps provided on the passenger conveyor; For each step, the step information includes information indicating a front side where a user can get on and off and a back side where a user cannot get on and off, In the inspection result map, the anomaly information is associated with step information of the predetermined step in which the anomaly was detected, among step information on the front side and the back side of each step shown in the step layout map, according to the importance represented by the importance information associated with the step information. Passenger conveyor inspection method.

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