JP6970005B2 - Escalator inspection device, escalator - Google Patents

Description

The present invention relates to a technique for inspecting the state of steps on an escalator.

The escalator transports users on the steps by circulating and moving a large number of steps connected in an endless manner along guide rails arranged inside the truss. When such a conveyor breaks down, it often takes time to recover, and once it breaks down, it causes annoyance to users.

For this reason, it is desired to detect the abnormality at an early stage when some abnormality appears before the failure, and to eliminate the abnormality by maintenance work so that the failure can be avoided.

As a conventional technology, a sound collector is attached to a specific step, the escalator is operated normally for one lap or more, the normal operating sound is measured in advance, and the difference from the measured operating sound is taken at the time of inspection. A technique for determining the presence or absence of an abnormality is disclosed. In addition, according to this technology, the cause of the abnormality is estimated by frequency analysis of the sound, and by synchronizing the measurement data with the step running position for inspection, the position where the abnormal sound is generated is any of the escalator. A technique for specifying the above is shown (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2012-199295

In order to detect an abnormality in a step that moves in a circular manner, the maintenance inspector needs to visually inspect and judge all the steps that make up the escalator. Therefore, it takes time to inspect all steps. In addition, when an abnormality occurs, it takes time to identify the target step, which puts pressure on the work time of other maintenance work.

In the technique according to Patent Document 1, since the operating sound is collected by the sound collector attached to the step, it is possible to measure the operating sound of the fixed device constituting the escalator. However, it is not possible to measure the operating noise of other steps that move with the step. That is, when another step is to be inspected, it is difficult to detect the abnormality.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a technique for identifying an abnormally generated step without visually recognizing it individually.

In order to solve the above problems, the typical escalator inspection device of the present invention is an escalator inspection device that identifies an abnormal part of the escalator based on the sound emitted from the escalator, and is installed at a fixed position of the escalator and operates. A sound collecting device that collects the contact sound between the roller provided on the step of the escalator and the rail of the escalator, which is sometimes periodically generated, and a sound collecting device that is out of the cycle of the contact sound collected by the sound collecting device. An operation direction operation for switching the operation direction of the escalator, a specific unit that identifies which step is abnormal based on the abnormal sound, an abnormality notification unit that notifies information of the abnormal step specified by the specific unit, and an abnormality notification unit. The sound collecting device collects the sound emitted when the escalator is operated in one direction, and the sound emitted after being switched in the opposite direction by the operating direction operation unit. The specific unit collects sound, and when abnormal sound is collected while operating in the one direction, the roller on the front wheel side of the step when traveling in the one direction is abnormal. When an abnormal sound is collected while operating in the opposite direction, it is specified that a roller different from the roller on the front wheel side of the step is abnormal .

Since it is possible to identify the step where an abnormality has occurred without visually recognizing it individually, it is possible to improve work efficiency.
Issues, configurations and effects other than those described above will be clarified by the description of the following embodiments.

It is a figure which shows the whole structure example of the escalator which concerns on embodiment, and the escalator inspection apparatus. It is a figure which shows the example of the hardware composition of a part of the control panel which concerns on embodiment. It is a figure which shows the arrangement example of the rail which guides a step, and is the figure which exemplifies the place where a sound is emitted. It is a figure which shows an example of the waveform which collected sound at the time of the escalator ascending operation. It is a figure which shows an example of the waveform which collected sound at the time of the escalator descent operation. It is a block diagram which shows an example of the structure of the control panel which concerns on embodiment. It is a flowchart which shows the operation example of embodiment.

Hereinafter, aspects of the embodiment will be described. The escalator to be inspected is a device for transporting a user who has boarded the step by circulating the step, and in the present embodiment, it will be described as a device for raising and lowering a staircase in particular. The escalator includes a horizontal escalator (so-called moving walkway), an auto slope in which the horizontal escalator is inclined, and the like, in addition to the step-shaped elevating device. Can be applied.

The escalator inspection device is a device or system that identifies an abnormal part of the escalator. In the embodiment, while operating the escalator, a plurality of sound collecting devices installed at fixed positions collect and collect the operating sound of the steps. Based on the sounded voice data, it is determined whether or not there is an abnormality in the step. When there is an abnormality in the step, the escalator inspection device of the embodiment identifies the step in which the abnormality has occurred, and identifies whether the abnormality is in the front wheel of the step or in the rear wheel. The escalator inspection device of the embodiment notifies whether the specified step or front wheel / rear wheel is abnormal.

FIG. 1 is a diagram showing a schematic structure of an escalator to be inspected and an overall configuration of an escalator inspection device. The X-axis, Y-axis, and Z-axis coordinate systems shown in FIG. 1 are the same as those shown in FIG.

The escalator 100 is supported by a truss 3 which is fastened to the upper floor beam 1 and the lower floor beam 2 and erected between the upper and lower floors. An escalator drive device 6 and a control panel 20 are installed in the upper truss 5 on the upper floor beam 1 side. The operation of the drive device 6 is controlled by the control panel 20, and the drive sprocket 9 is driven via the drive chain 8. Further, a driven sprocket 10 paired with the drive sprocket 9 is installed in the lower truss 4 on the lower floor beam 2 side, and the step chain 11 is wound between the drive sprocket 9 and the driven sprocket 10. Has been done. A large number of steps 12 are connected to the step chain 11. With this configuration, by rotating the drive sprocket 9 with the drive device 6, the step chain 11 orbits between the drive sprocket 9 and the driven sprocket 10, and a large number of steps 12 are on the upper floor side along the guide rail described later. It circulates between the entrance and exit and the entrance on the lower floor.

The step 12 has rollers for the front wheels 22 and the rear wheels 23, respectively. The front wheel 22 is located at the front portion of the step 12 when the escalator 100 is operating in an ascending operation, and is a pair of rollers on the left side (back side of the Y-axis direction paper surface) and the right side (front side of the Y-axis direction paper surface). It is composed of pairs. The rear wheel 23 is located at the rear portion of the step 12 when the escalator 100 is operating in an ascending operation, and is composed of a pair of left and right rollers. Since the traveling direction of the step 12 is reversed between the ascending operation and the descending operation of the escalator 100, the front wheel during the ascending operation becomes the rear wheel during the descending operation, and the rear wheel during the ascending operation becomes the rear wheel during the descending operation. Although it is a front wheel, the names and codes of "front wheel 22" and "rear wheel 23" are fixed as they are.

Further, a balustrade 15 composed of a deck board 13 and a balustrade panel 14 is erected on both left and right sides of the step 12 that moves in circulation, and a handrail belt 16 is attached to the outer periphery of the balustrade panel 14. The handrail belt 16 is a handrail gripped by a user on the step 12, and for example, by transmitting the driving force of the driving device 6, the handrail belt 16 moves around the balustrade panel 14 in synchronization with the movement of the step 12. Go around.

The escalator inspection device 500 of the present embodiment has a pair of upper sound collecting devices 17A and 17B in the upper truss 5, and a pair of lower sound collecting devices 18A and 18B in the lower truss 4. The upper sound collecting device 17A is a microphone installed on the left side in the upper truss 5, and collects the sound emitted in the upper truss 5 from the left side. The upper sound collecting device 17B is a microphone installed on the right side in the upper truss 5, and collects the sound emitted in the upper truss 5 from the right side. The lower sound collectors 18A and 18B are also a pair of microphones installed on the left and right sides of the lower truss 4, and the lower sound collector 18A collects the sound generated in the lower truss 4 from the left side and collects the lower sound. The sound device 18B collects sound from the right side. In the following description, the upper sound collecting devices 17A and 17B will be referred to as the upper sound collecting device 17 when it is not necessary to distinguish them or when they are generically referred to, and the lower sound collecting devices 18A and 18B need to be particularly distinguished. When there is no sound or when it is generically referred to, it is referred to as a lower sound collecting device 18.

The control panel 20 is wired to the upper sound collecting device 17 and the lower sound collecting device 18, and inputs an electric signal of the sound collected by each sound collecting device. Further, the control panel 20 can perform data communication with the control center 600 via a communication device 51A such as a router and a wide area communication network 50. The control panel 20 has a terminal for connecting to the mobile terminal 300 carried by the maintenance inspector, and can also perform data communication with the mobile terminal 300.

The mobile terminal 300 is, for example, a smartphone, a tablet-type computer, or a notebook-type computer. The mobile terminal 300 receives the operation information and the notification message of the escalator 100 collected by the control panel 20, and displays the information to notify the maintenance inspector of the status of the escalator 100, alert information, and the like.

The control center 600 is a facility that comprehensively remotely monitors and controls escalators and elevators (not shown) in each customer facility, and includes a remote monitoring device 400. The remote monitoring device 400 is connected to the wide area communication network 50 via a communication device 51B such as a router, receives operation information and notification messages of the escalator 100 from the control panel 20, and stores and displays such information. To do. When an abnormality occurs in the escalator 100, the remote monitoring device 400 notifies an operator or the like in the control center 600 of alert information. Upon receiving this notification, the operator contacts the nearby sales office of the escalator 100 and urges repairs and inspections.

FIG. 2 is a diagram showing a part of the hardware configuration of the control panel 20. The control panel 20 has a controller 201 and an operation control unit 220. The controller 201 controls each hardware operating inside the control panel 20. The controller 201 has the following configuration.

The CPU 202 (CPU: Central Processing Unit) expands the program stored in the ROM 204 (ROM: Read only memory) or the storage 205 (HDD: Hard Disk Drive) into the RAM 203 (RAM: Random access memory) and executes the calculation. It is a processing device. The CPU 202 comprehensively controls each hardware inside the controller 201 by executing a program. The RAM 203 is a volatile memory and is a work memory when the CPU 202 processes. The RAM 203 temporarily stores necessary data while the CPU 202 calculates and executes the program.

ROM 204 is a non-volatile memory and stores firmware for operation control. The storage 205 is an auxiliary storage device that non-volatilely stores a program executed by the CPU 202 and control data, and is, for example, a hard disk drive. In the present embodiment, a program that provides each function described below is introduced in advance in the storage 205. Further, the storage 205 temporarily or permanently stores the sound data collected by the upper sound collecting device 17 and the lower sound collecting device 18.

The network I / F 206 is an interface board responsible for controlling data communication performed with an external device, and in the present embodiment, it mainly controls data communication with the remote monitoring device 400 in the control center 600.

The input / output I / F 207 is an interface that is connected to the operation control unit 220 and has a terminal for inputting / outputting a control signal or the like to / from the operation control unit 220. The voice input I / F 208 is an interface having a microphone terminal connected to the upper sound collecting device 17 and the lower sound collecting device 18 by a cable, and is an electric signal of the sound collected by the upper sound collecting device 17 and the lower sound collecting device 18. Enter. The terminal connection I / F 209 is an interface that connects to the mobile terminal 300 and has a terminal compliant with, for example, a USB (Universal Serial Bus) standard. The control panel 20 is connected to the mobile terminal 300 via this terminal, and data transmission / reception is performed on both sides.

The operation control unit 220 is a device that is connected to the controller 201 via the input / output I / F 207 and controls the operation operation of the drive device 6 according to an instruction signal from the controller 201 or an operation of a switch (not shown). be. The operation control unit 220 can switch and control the stop, ascending, and descending operations according to the instruction signal from the controller 201 or the switch operation, and can also adjust the operation speed and the like. The internal configuration of the operation control unit 220 is the same as that of the previous one.

Hereinafter, a method for identifying an abnormal step will be described with reference to each figure.

FIG. 3A is a diagram showing an arrangement example of guide rails for guiding the front wheels 22 and the rear wheels 23 attached to the step 12 of the escalator 100. Further, FIGS. 3B and 3C show the locations where the contact sound (normal sound) periodically generated during the operation of the escalator 100 is shown by a broken line frame, FIG. 3B is during the ascending / descending operation, and FIG. 3C is during the descending operation. Indicates the location of the occurrence of.

The guide rail has a lower front wheel rail 24, a lower rear wheel rail 25, a front wheel holding rail 26, and a front and rear wheel shared straight rail 27 from the lower side. Further, the guide rail has an upper rear wheel rail 28, a rear wheel holding rail 29, an upper front wheel rail 30, a return front wheel straight rail 31, and a return rear wheel straight rail 32.

During the ascending operation of the step 12, the front wheel 22 and the rail when entering the front wheel holding rail 26 located on the lower side and the upper front wheel rail 30 (entrance portion into the upper truss 5) located on the upper side. It makes contact and makes a contact sound. That is, during the ascending operation, the contact sound by the front wheels 22 is periodically generated at the portion of the broken line frame shown in FIG. 3B.

On the other hand, during the descent operation of the step 12, the rear wheel 23 has a rail switching point between the front and rear wheel shared straight rail 27 and the lower rear wheel rail 25 (entrance to the lower truss 4), and a return rear wheel straight rail. A sound is emitted at the rail switching point between the 32 and the upper rear wheel rail 28. That is, during the descent operation, the contact sound by the rear wheel 23 is periodically generated at the portion of the broken line frame shown in FIG. 3C.

FIG. 4 exemplifies the sound wave collecting type when the escalator 100 is operated ascending. FIG. 4A shows the sound wave collecting type in the lower sound collecting device 18 in the normal state, and FIG. 4B shows the sound wave collecting type in the upper sound collecting device 17 in the normal time. Further, FIG. 4C shows a sound wave collecting type in the lower sound collecting device 18 when an abnormality occurs in the rear wheel 23, and FIG. 4D shows a sound wave collecting type in the upper sound collecting device 17 when an abnormality occurs in the rear wheel 23. It is a shape.

During the ascending operation of the escalator 100, the lower sound collecting device 18 periodically collects the contact sound 33 in which the front wheel 22 of the step 12 enters the front wheel holding rail 26 (see FIG. 4A and FIG. 3B). ). In the upper sound collecting device 17, the contact sound 34 in which the front wheel 22 of the step 12 enters the upper truss 5 is periodically collected (see FIG. 4B and FIG. 3B).

Here, when an abnormality has occurred in the rear wheel 23 of one step 12, the lower sound collecting device 18 has the front wheel 22 of the step 12 in which the abnormality has occurred to the front wheel holding rail 26 during the ascending operation of the escalator 100. After entering, the abnormal sound 35 by the rear wheel 23 is collected (see FIG. 4C). Further, the upper sound collecting device 17 collects the abnormal sound 35 by the rear wheels 23 after the front wheel side of the step 12 where the abnormality has occurred enters the upper truss 5 (see FIG. 4D).

In this way, when an abnormality has occurred in the rear wheel 23, the periodic sound of the step 12 in which the abnormality has occurred is collected during the ascending operation, and then the abnormal sound by the rear wheel 23 is collected. From this, the abnormal step can be identified by the following method.
(Specific method A) The reference step 12 is determined, and for example, the period from when the lower sound collecting device 18 collects the contact sound of the reference step until the lower sound collecting device 18 collects the abnormal sound. The number of times the contact sound is generated is counted. From this count number, it is possible to uniquely identify at which step from the reference step the abnormal sound is generated.
(Specific method B) In a state where the operating speed is constant, for example, when the lower sound collecting device 18 collects the sound of the reference step, the time measurement is started, and the lower sound collecting device 18 collects the abnormal sound. Time the elapsed time until. Then, the distance (= operating speed x elapsed time) from the reference step to the abnormal step is obtained, and this distance is divided by the length of one step of the step 12 in the traveling direction. It is possible to uniquely identify (at which step from the reference step the abnormal sound is generated).

By using these specific methods A and B, the escalator inspection device 500 identifies which step is abnormal based on the abnormal sound out of the cycle of the contact sound.

Further, in order to remove the influence of noise and the like, the escalator inspection device 500 is based on the time difference of the abnormal sound collected by the lower sound collecting device 18 and the upper sound collecting device 17, and these are abnormal at the same step. Determine if the sound is being collected. If it is determined that the steps are the same, the escalator inspection device 500 identifies that the steps are abnormal. Thereby, the specific accuracy can be improved.

If an abnormality occurs in the rear wheel 23 during the ascending operation of the escalator 100, the abnormal sound can be detected as described above. However, if an abnormality occurs in the front wheel 22 during ascending operation, the contact sound (normal periodic sound) output by entering the front wheel holding rail 26 or the upper truss 5 overlaps with the abnormal sound and is detected. Becomes difficult. Therefore, in the present embodiment, the sound is collected not only during the ascending operation but also during the descending operation.

FIG. 5 exemplifies the sound wave collecting type when the escalator 100 is operated downward, FIG. 5A shows the sound wave collecting type in the lower sound collecting device 18 at the normal time, and FIG. 5B shows the normal sound wave collecting type. The sound wave collecting type in the upper sound collecting device 17 at the time is shown. Further, FIG. 5C shows a sound wave collecting type in the lower sound collecting device 18 when an abnormality occurs in the front wheel 22, and FIG. 5D shows a sound wave collecting type in the upper sound collecting device 17 when an abnormality occurs in the front wheel 22. ing.

During the descent operation of the escalator 100, the lower sound collecting device 18 periodically collects the contact sound 36 in which the rear wheel 23 of the step 12 enters the lower truss 4, and the upper sound collecting device 17 has the rear wheel 23. The contact sound 37 entering the rear wheel holding rail 29 is periodically collected (FIGS. 5A, 5B, and 3C).

When an abnormality has occurred in the front wheel 22 of one step 12, the lower sound collecting device 18 collects the contact sound 36 by the rear wheel 23 of the step 12 in which the abnormality has occurred, and then the abnormal sound by the front wheel 22. Collect 38 sounds. The upper sound collecting device 17 collects the contact sound 37 by the rear wheel 23 of the step 12 in which the abnormality has occurred, and then collects the abnormal sound 38 by the front wheel 22.

In this way, by collecting the sound during the descent operation, if an abnormality has occurred in the front wheel 22, it can be identified. Further, by applying the above-mentioned specific method A or specific method B, it is possible to uniquely identify the step that is abnormal.

As described above, the abnormal sound of the rear wheel 23 can be collected by operating the rear wheel 23 ascending, and the abnormal sound of the front wheel 22 can be collected by operating the front wheel 22 as descending. At the time of inspection, the maintenance inspector switches the operation direction from one direction to the opposite direction, operates in both directions, and collects sound. Thereby, the escalator inspection device 500 can identify which roller of the front wheel 22 or the rear wheel 23 has the abnormality.

In addition to the above, it is possible to identify which of the left and right rollers is abnormal by the volume difference of the abnormal sound collected by the left and right sound collectors. That is, when the abnormal sound collected by the upper sound collecting device 17A is larger than the abnormal sound collected by the upper sound collecting device 17B, the escalator inspection device 500 considers that the roller on the left side is abnormal. If the sound collection of the upper sound collector 17B is larger, the escalator inspection device 500 considers that the roller on the right side is abnormal. The same applies to the lower sound collecting device 18A and the lower sound collecting device 18B.

FIG. 6 is a block diagram showing a configuration example of the control panel 20 of the embodiment. The control panel 20 has an initialization unit 251, an operation direction operation unit 252, a sound collection unit 253, a conversion unit 254, a specific unit 255, an abnormality notification unit 256, and a storage unit 260. The operation direction operation unit 252 is realized by the controller 201 described with reference to FIG. 2 and the operation control unit 220. The blocks other than the operation direction operation unit 252 are realized by the controller 201. That is, each block shown in FIG. 6 is realized in cooperation with each hardware by the CPU 202 expanding the program stored in advance in the storage 205 or the ROM 204 into the RAM 203 and executing the calculation.

FIG. 7 is a flowchart showing an operation example when identifying an abnormal portion of the present embodiment, and is a diagram showing a functional example and an operation example of each block shown in FIG.

The initialization unit 251 acquires the total number of steps 12 of the escalator 100, the stroke information, and the information of the reference steps (S001). The stroke information is numerical information such as the rotation speed of the drive device 6 and the drive sprocket 9, and is information that can derive the operation speed itself of the escalator 100 and the operation speed. The reference step is a reference step as described above, and a predetermined step may be used as the reference step. Alternatively, a reference step may be determined at the time of inspection and marked so that it can be distinguished from the reference step. The initialization unit 251 acquires the identification number of the reference step, the total number of steps 12, and the process information from the maintenance inspector via the mobile terminal 300, and stores them in the storage unit 260. It should be noted that these values may be stored in the storage unit 260 in advance. In this case, the operation of step S001 becomes unnecessary.

The operation direction operation unit 252 controls the operation direction so that the escalator 100 operates ascending or descending according to the operation of the changeover switch (not shown) by the maintenance inspector or the instruction message obtained from the maintenance inspector via the mobile terminal 300. (S002). Here, it is assumed that the operation is controlled so as to be ascending.

The sound collecting unit 253 turns on and controls the power of the upper sound collecting devices 17A and 17B and the lower sound collecting devices 18A and 18B to start collecting sound from each sound collecting device. In this example, the sound collecting unit 253 collects sound for one or more rounds of the escalator 100 (S003). In parallel with this, the conversion unit 254 samples the waveform signal of the obtained sound, performs quantization processing and coding processing, and converts it into digital data. The conversion unit 254 stores the converted digital data in the storage unit 260. In this way, it is possible to obtain sound data for one or more laps during ascending operation. In addition, left and right audio data can be obtained on the upper side and the lower side, respectively.

The specifying unit 255 uses the above-mentioned specific method A or the specific method B to identify the step 12 having the rear wheel abnormality from the voice data obtained on the upper side and the lower side (S004). The specific unit 255 specifies the positional relationship between the reference step and the step producing the abnormal sound (how many steps from the reference step are abnormal steps, etc.). Further, in order to prevent erroneous determination due to noise or the like, the specific unit 255 performs a matching process between the upper sound collecting data and the lower sound collecting data, and determines whether or not the abnormal sounds generated by the abnormal steps match. For matching between the upper sound collecting data and the lower sound collecting data, the total number of steps, the process information, the time difference of the abnormal sound detected by each sound collecting device, and the like are used. That is, the specific unit 255 determines whether the time obtained from the distance between both contact sound generation points (see FIG. 3) and the operation speed derived from the stroke information matches the time difference of the collected abnormal sound. By doing so, matching processing is performed.

Next, the specific unit 255 acquires sound collection data for each of the left and right sides, and identifies which of the left and right rollers is abnormal based on the volume difference of the abnormal sound (S005).

The operation direction operation unit 252 switches and controls the escalator 100 so that the escalator 100 is operated downward this time according to the operation of the changeover switch (not shown) by the maintenance inspector or the instruction from the maintenance inspector obtained via the mobile terminal 300. (S006). Then, the sound collecting unit 253, the conversion unit 254, and the specifying unit 255 perform the same processing as in steps S003 to S005 to identify the step 12 in which the front wheel is abnormal, and specify which of the left and right rollers is abnormal. (Steps S007, S008, S009).

The abnormality notification unit 256 outputs information on the step on which the abnormality has occurred and the abnormality occurrence portion (front wheel left / right, rear wheel left / right) specified by the identification unit 255 (S010). The output destination is the mobile terminal 300, but it may be output to the remote monitoring device 400 of the control center 600 via a display unit (not shown) attached to the control panel 20 or the wide area communication network 50. The mobile terminal 300 or the remote monitoring device 400 that has input this output displays the identification number of the step where the abnormality has occurred and the abnormality occurrence portion (front wheel left / right, rear wheel left / right). The abnormality notification unit 256 may display information on how many steps ahead (or what step after) the step ahead of the reference step is abnormal.

According to the embodiment of the present embodiment, the inspection time can be significantly reduced as compared with the conventional inspection by manual work or visual confirmation.

In the present embodiment, the sound collectors are provided at two locations, the lower truss 4 and the upper truss 5, but one sound collector may be fixedly installed at any one location. By installing sound collecting devices at two locations as in the present embodiment, it is possible to reduce the occurrence of false detection due to noise or the like. The installation position is not limited to the inside of the lower truss 4 and the upper truss 5. A plurality of abnormal sounds of the steps may be installed at two or more places other than the lower truss 4 and the upper truss 5 as long as they can collect the abnormal sound.

Further, in the present embodiment, in order to identify which of the left and right rollers is abnormal, sound collecting devices are provided on the left and right in the traveling direction in the lower truss 4 and on the left and right in the traveling direction in the upper truss 5, respectively. If the specification up to this point is not necessary, it is not necessary to provide it on the left and right. Further, instead of the configuration in which the sound collecting devices are provided on both the left and right sides, a sound collecting microphone having directivity capable of discriminating the difference between the left and right sounds may be used.

Further, in the present embodiment, the maintenance inspector goes to the site and performs the maintenance work on the escalator 100 while performing the above-mentioned step inspection. However, the system in the control center 600 (for example, the remote monitoring device 400) is described. ) However, it may be carried out by remote control. For example, the remote monitoring device 400 gives an instruction to execute the flowchart shown in FIG. 7 at midnight when there is no user, and the control panel 20 of the escalator 100 autonomously executes the flowchart shown in FIG. 7. The remote monitoring device 400 receives the specific result. With this implementation, it is possible to periodically and remotely check for abnormalities on the steps.

A part of the operation shown in FIG. 7 may be performed by the mobile terminal 300 or the remote monitoring device 400. In particular, the operations of the specific unit 255 and the abnormality notification unit 256 (S004, S005, S008, S009, S010) can be performed by the mobile terminal 300 or the remote monitoring device 400. Further, a part or all of the functions of the control panel 20 may be realized by an integrated circuit such as an ASIC.

As described in detail above, according to the present embodiment, it is possible to identify the step and the step constituent part where the abnormality has occurred while operating the escalator, so that the work efficiency can be improved.

The present invention is not limited to the above-described embodiment, and includes various modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations. Further, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Further, it is possible to add / delete / replace a part of the configuration of each embodiment with another configuration. Further, each of the above configurations, functions, processing units, processing means and the like may be realized by hardware by designing a part or all of them by, for example, an integrated circuit. Further, each of the above configurations, functions, and the like may be realized by software by the processor interpreting and executing a program that realizes each function. Information such as programs, tables, and files that realize each function can be placed in a memory, a recording device such as a hard disk or SSD (Solid State Drive), or a recording medium such as an IC card, SD card, or DVD.

12: Steps 17, 17A, 17B: Upper sound collecting device 18, 18A, 18B: Lower sound collecting device 20: Control panel 22: Front wheel 23: Rear wheel 100: Escalator 251: Initialization unit 252: Operation direction operation unit 253: Sound collecting unit 254: Conversion unit 255: Specific unit 256: Abnormality notification unit 260: Storage unit 300: Mobile terminal 400: Remote monitoring device 500: Escalator inspection device 600: Control center

Claims (5)

It is an escalator inspection device that identifies abnormal parts of the escalator based on the sound emitted from the escalator.
A sound collecting device installed at a fixed position of the escalator and periodically generated during operation to collect the contact sound between the roller provided on the step of the escalator and the rail of the escalator.
A specific unit that identifies which step is abnormal based on the abnormal sound that is out of the contact sound cycle and that is collected by the sound collecting device.
An abnormality notification unit that notifies information on an abnormal step specified by the specific unit, and an abnormality notification unit.
It has an operation direction operation unit that switches the operation direction of the escalator, and has.
The sound collecting device collects the sound emitted when the escalator is operated in one direction, and collects the sound emitted after being switched in the opposite direction by the operating direction operation unit.
The specific unit identifies that the roller on the front wheel side of the step when traveling in the one direction is abnormal when the abnormal sound is collected during the operation in the one direction. If an abnormal sound is collected while operating in the opposite direction, it is specified that a roller different from the roller on the front wheel side of the step is abnormal.
Escalator inspection device. It is an escalator inspection device that identifies abnormal parts of the escalator based on the sound emitted from the escalator.
A sound collecting device installed at a fixed position of the escalator and periodically generated during operation to collect the contact sound between the roller provided on the step of the escalator and the rail of the escalator.
A specific unit that identifies which step is abnormal based on the abnormal sound that is out of the contact sound cycle and that is collected by the sound collecting device.
Have a, and abnormality notification unit for notifying information of the abnormal footstep specified by the specifying unit,
The sound collecting device collects sounds on the left and right in the traveling direction of the escalator so as to be distinguishable.
The specific unit identifies which roller on the left or right of the step is abnormal according to the volume difference between the left and right in the traveling direction of the abnormal sound collected by the sound collecting device.
Escalator inspection device. The escalator inspection device according to claim 1 or 2.
There are a plurality of the sound collecting devices, and they are installed at different fixed positions in the traveling direction of the step.
The specific unit determines whether the abnormal sound collected by each sound collecting device is a sound emitted at the same step, based on the time difference of the abnormal sound collected by each sound collecting device. If the steps are the same, identify that the step is abnormal.
Escalator inspection device. It is an escalator that transports users who board the steps by circulating the steps.
A sound collecting device installed at a fixed position of the escalator and periodically generated during operation to collect the contact sound between the roller provided on the step of the escalator and the rail of the escalator.
A specific unit that identifies which step is abnormal based on the abnormal sound that is out of the contact sound cycle and that is collected by the sound collecting device.
An abnormality notification unit that notifies information on an abnormal step specified by the specific unit, and an abnormality notification unit.
It has an operation direction operation unit that switches the operation direction of the escalator, and has.
The sound collecting device collects the sound emitted when the escalator is operated in one direction, and collects the sound emitted after being switched in the opposite direction by the operating direction operation unit.
The specific unit identifies that the roller on the front wheel side of the step when traveling in the one direction is abnormal when the abnormal sound is collected during the operation in the one direction. If an abnormal sound is collected while operating in the opposite direction, it is specified that a roller different from the roller on the front wheel side of the step is abnormal.
escalator. It is an escalator that transports users who board the steps by circulating the steps.
A sound collecting device installed at a fixed position of the escalator and periodically generated during operation to collect the contact sound between the roller provided on the step of the escalator and the rail of the escalator.
A specific unit that identifies which step is abnormal based on the abnormal sound that is out of the contact sound cycle and that is collected by the sound collecting device.
Have a, and abnormality notification unit for notifying information of the abnormal footstep specified by the specifying unit,
The sound collecting device collects sounds on the left and right in the traveling direction of the escalator so as to be distinguishable.
The specific unit identifies which roller on the left or right of the step is abnormal according to the volume difference between the left and right in the traveling direction of the abnormal sound collected by the sound collecting device.
escalator.

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