JP2009173364A - Failure diagnostic system of passenger conveyer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and surely diagnose various defects of a passenger conveyor including the defective speed of a handrail belt. <P>SOLUTION: A radio IC tag 10 is installed on the handrail belt 2 at any position, and a tag reader 11 is installed on the handrail belt 2 near a circulation path. When the radio IC tag 10 approaches the tag reader 11 by the circulating movement of the handrail belt 2, data is read from the radio IC tag 10 by the tag reader 11. The data reading operation by the tag reader 11 is monitored by a diagnostic device 12, and based on the result of the monitoring, the defect of an escalator is diagnosed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an abnormality diagnosis system for diagnosing abnormality of passenger conveyors such as escalators and moving walkways.

  Passenger conveyors such as escalators and moving walkways are configured to convey passengers by circulating and moving a number of endlessly connected steps and handrail belts while being synchronized with each other by driving a motor. In this type of passenger conveyor, it is important to operate with sufficient safety of passengers. For example, if an abnormality occurs due to aging of the product, this abnormality is It is required to detect it promptly and take some measures.

For example, if the handrail belt is worn or stretched due to deterioration over time, or if a mechanism that transmits the driving force of the motor to the handrail belt is defective, the abnormality appears as vibration of the handrail belt, It may appear as a phenomenon of synchronization with the step due to an abnormal belt speed. As a method for diagnosing such an abnormality of the handrail belt, conventionally, as disclosed in Patent Document 1, for example, a plurality of reflectors that reflect light are arranged at predetermined intervals on the inner surface side of the handrail belt. In addition, a photoelectric sensor is installed in the vicinity of the circulation movement path of the handrail belt, and the handrail based on the pulse signal output from the photoelectric sensor in response to the plurality of reflectors sequentially passing in the vicinity of the photoelectric sensor due to the circulation movement of the handrail belt. A method has been proposed in which the moving speed of the belt is obtained, and when the moving speed of the handrail belt decreases by a predetermined value or more, an abnormality is displayed on the display device and a notification is given to the central management center.
Japanese Patent Laid-Open No. 10-36052

  However, in the conventional technique disclosed in Patent Document 1, reflected light from a plurality of reflectors arranged on the handrail belt is detected by a photoelectric sensor to obtain the moving speed of the handrail belt. If dirt is attached to the surface and light cannot be normally reflected, it is impossible to correctly diagnose an abnormal speed of the handrail belt. Further, in order to guarantee a correct diagnosis, it is necessary for maintenance personnel to periodically perform cleaning work to remove dirt from a large number of reflectors, which causes a problem that maintenance work becomes complicated.

  The present invention was devised to solve the problems of the prior art as described above, and is capable of easily and reliably diagnosing various abnormalities of the passenger conveyor including an abnormality in the speed of the handrail belt. It aims at providing the abnormality diagnosis system of a conveyor.

  In the abnormality diagnosis system according to the present invention, an information storage medium is installed at an arbitrary position on the handrail belt, and a reader is installed in the vicinity of the circulation path of the handrail belt, and the information storage medium approaches the reader due to the circulation movement of the handrail belt. In addition, data can be read from the information storage medium in a non-contact manner by the reader. The diagnosis device monitors the data reading operation from the information storage medium by the reading device, and diagnoses the abnormality of the passenger conveyor based on the monitoring result.

  According to the present invention, even if the handrail belt is contaminated, the circulation movement of the handrail belt can be properly monitored by the diagnostic device, and the passenger conveyor including the speed abnormality of the handrail belt can be monitored. It is possible to easily and reliably diagnose various abnormalities.

  Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. In the following embodiments, an escalator in which a large number of steps move diagonally across the upper and lower floors is exemplified as a passenger conveyor to be diagnosed. The present invention can also be effectively applied to a case where a moving sidewalk that moves in the horizontal direction is an object of diagnosis.

[First Embodiment]
First, a first embodiment of the present invention will be described.

  FIG. 1 is a schematic diagram illustrating an outline of an escalator that is a diagnosis target of the abnormality diagnosis system of the present embodiment. The escalator to be diagnosed is installed, for example, between the upper floor and the lower floor of the building, and a number of steps 1 and handrail belts 2 connected without gaps are circulated while being synchronized with each other to circulate passengers. It is transported over the upper and lower floors.

  A number of steps 1 are connected to each other by an endless chain 3 and are arranged in a truss, which is a main frame that supports the load of the escalator. Inside the truss, a driving sprocket 4 and a driven sprocket 5 on the lower floor side are respectively arranged on the upper floor side, and a chain 3 for connecting a number of steps 1 between the driving sprocket 4 and the driven sprocket 5. Is wrapped around. The drive sprocket 4 is connected to a drive device 6 having a motor, a speed reducer, etc., and the drive sprocket 4 is rotated by the drive of the drive device 6, and the drive force is transmitted to the chain 3 meshing with the drive sprocket 4. Thus, a large number of steps 1 connected by the chain 3 circulate between the upper floor entrance and the lower floor entrance along a guide rail (not shown).

  In addition, a pair of balustrades 7 are erected along the moving direction of Step 1 at positions facing both the left and right side surfaces of Step 1, and passengers on Step 1 so as to go around the balustrade 7 A handrail belt 2 to be gripped is attached. The handrail belt 2 is transmitted to the handrail belt driving device 8 via the driving sprocket 4 from the above-described driving device 6, for example, so that the upper floor side entrance and the lower floor side are synchronized with step 1. Cycle between the entrances and exits.

  The abnormality diagnosis system of this embodiment is for diagnosing an abnormality of an escalator configured as described above. A wireless IC (integrated circuit) tag 10 serving as an information storage medium at an arbitrary position of the handrail belt 2, a handrail belt A tag reader 11 as a reading device is installed in the vicinity of the two circulation movement paths, and the data reading operation from the wireless IC tag 10 by the tag reader 11 is monitored by the diagnosis device 12 to diagnose an abnormality of the escalator.

  In the wireless IC tag 10, unique data about the handrail belt 2 on which the wireless IC tag 10 is installed, specifically, for example, data such as a manufacturing lot number of the handrail belt 2 is written. The data written in the wireless IC tag 10 is read by the tag reader 11 when the wireless IC tag 10 approaches the tag reader 11 by the circular movement of the handrail belt 2.

  The tag reader 11 is installed in the vicinity of the circulation path of the handrail belt 2 in a state of being fixed to, for example, a truss, and performs short-range wireless communication with the wireless IC tag 10 to be written into the wireless IC tag 10. Read data. A method of wireless communication between the tag reader 11 and the wireless IC tag 10 is not particularly limited, and various methods such as an electromagnetic induction method and a microwave method can be adopted. Here, since the wireless IC tag 10 is installed on the handrail belt 2 and circulates together with the handrail belt 2, the data reading operation from the wireless IC tag 10 by the tag reader 20 is performed every time the handrail belt 1 makes one turn. become. The tag reader 11 desirably has a function of not only reading data from the wireless IC tag 10 but also writing data to the wireless IC tag 10. If the tag reader 11 also has a data writing function, the diagnostic result by the diagnostic device 12 can be updated and stored in the wireless IC tag 10 as needed, and used as useful information for subsequent abnormality diagnosis. can do.

  The diagnostic device 12 monitors the data reading operation from the wireless IC tag 10 by the tag reader 11 and diagnoses an abnormality of the escalator based on the monitoring result. Specifically, the diagnostic device 12 monitors, for example, the data reading interval from the wireless IC tag 10 by the tag reader 11, and this data reading interval is stored in advance in a normal handrail belt circulation required time (handrail belt). 2), it is possible to diagnose whether or not a speed abnormality due to elongation or slippage has occurred in the handrail belt 2. Further, the diagnostic device 12 calculates the moving speed of the handrail belt 2 from the data reading interval from the wireless IC tag 10 by the tag reader 11, and the calculated moving speed of the handrail belt 2 is stored in advance in the normal time. Compared to the speed (rated speed), it may be diagnosed whether or not a speed abnormality due to elongation or slippage has occurred in the handrail belt 2. Further, the diagnostic device 12 accumulates the number of times of data reading from the wireless IC tag 10 by the tag reader 11, and grasps the number of times the escalator is driven, that is, how many times the step 1 and the handrail belt 2 have rotated, It is also possible to determine the degree of consumption of each product in the escalator.

  FIG. 2 is a block diagram illustrating an example of a functional configuration realized in the diagnostic device 12. As shown in FIG. 2, the diagnostic device 12 includes a calculation unit 121, a timer 122, a comparison determination unit 123, a memory 124, and a display unit 125 as a functional configuration for diagnosing an escalator abnormality.

  Every time data is read from the wireless IC tag 10 by the tag reader 11, the read data (specific data of the handrail belt 2) is input to the calculation unit 121. The calculation unit 121 measures the data input interval from the tag reader 11, that is, the data reading interval from the wireless IC tag 10 by the tag reader 11 based on the time counted by the timer 122, and the measured data reading interval The information is output to the comparison / determination unit 123 together with the unique data of the handrail belt 2. In addition, the calculation unit 121 calculates the moving speed of the handrail belt 2 from the measured data reading interval and the moving distance of one turn of the handrail belt 2 that is a known value, and calculates information on the calculated moving speed. You may make it output to the comparison determination part 123 with the specific data of the belt 2. FIG.

  When the information of the data reading interval by the tag reader 11 measured by the calculation unit 121 is input to the comparison determination unit 123, the data reading interval by the tag reader 11 is circulated in the normal handrail belt circulation stored in the memory 124 in advance. Compared with the required time (time required for the handrail belt 2 to make one revolution), it is diagnosed whether or not a speed abnormality due to elongation or slippage has occurred in the handrail belt 2. When the information on the moving speed of the handrail belt 2 is input from the computing unit 121, the comparison / determination unit 123 uses the moving speed of the handrail belt 2 as a normal moving speed stored in the memory 124 in advance. Compared with (rated speed), it is diagnosed whether or not a speed abnormality caused by elongation or slippage has occurred in the handrail belt 2. Then, the comparison / determination unit 123 causes the display unit 125 to display a diagnosis result indicating whether or not a speed abnormality has occurred in the handrail belt 2 in association with the unique data of the handrail belt 2.

  In addition, the calculation unit 121 accumulates the number of times of data reading from the wireless IC tag 10 by the tag reader 11, and grasps the number of times the escalator is driven, that is, how many times the step 1 and the handrail belt 2 have been rotated. Information on the number of times the escalator is driven may be output to the comparison determination unit 123. In this case, the comparison / determination unit 123 refers to the maintenance information of each escalator product stored in advance in the memory 124 based on the information on the number of times the escalator is driven, which is input from the calculation unit 121. The degree of wear is determined. Then, when there is an article whose consumption level is severe and it is determined that the replacement time is near, the comparison / determination unit 123 displays the article name on the display unit 125 together with information on the number of times the escalator is driven.

  As described above in detail with reference to specific examples, according to the abnormality diagnosis system of the present embodiment, the operation of reading data of the wireless IC tag 10 installed on the handrail belt 2 by the tag reader 11 is performed. It is possible to reliably diagnose abnormal speed of the handrail belt 2 and the degree of wear of each escalator, etc., by using a simple method such as monitoring by an error. Accurate diagnosis can be performed without causing any inconvenience.

  Further, according to the abnormality diagnosis system of the present embodiment, by displaying the diagnosis result by the diagnostic device 12 on the display unit 125, it is possible to allow the maintenance worker to accurately and reliably grasp the presence or absence of an escalator, and to perform maintenance work. The workability of maintenance work by personnel can be greatly improved.

  Further, according to the abnormality diagnosis system of the present embodiment, by providing the tag reader 11 with a data writing function, the diagnosis result by the diagnosis device 12 can be updated and stored in the wireless IC tag 10 as needed. The information of the diagnosis result can be used as useful information in the subsequent abnormality diagnosis.

[Second Embodiment]
Next, a second embodiment of the present invention will be described.

  FIG. 3 is a schematic diagram for explaining the outline of the abnormality diagnosis system of the second embodiment. In this embodiment, as shown in FIG. 3, tag readers 11 a, 11 b, 11 c... Are installed at a plurality of locations in the circulation movement path of the handrail belt 2, and the handrail belt 2 is moved along with the circulation movement of the handrail belt 2. Are sequentially read by the plurality of tag readers 11a, 11b, 11c,... And the data reading operation by the tag readers 11a, 11b, 11c,. It is characterized by doing so.

  The plurality of tag readers 11a, 11b, 11c,... Are arranged along the circulation path of the handrail belt 2 so that the interval between adjacent tag readers is constant. The plurality of tag readers 11 a, 11 b, 11 c... Read data from the wireless IC tag and output it to the diagnostic device 12 when the wireless IC tag 10 approaches due to the circular movement of the handrail belt 2. To do. Therefore, the diagnostic device 12 includes a timing at which the wireless IC tag 10 approaches the tag reader 11a due to the circular movement of the handrail belt 2, a timing at which the wireless IC tag 10 approaches the tag reader 11b, and a timing at which the wireless IC tag 10 approaches the tag reader 11c. ..., the unique data of the handrail belt 2 respectively stored in the wireless IC tag 10 is sequentially input. Here, since the interval between the adjacent tag readers (distance between the installation positions) is a known constant value, the diagnostic device 12 can determine the time interval during which data is input and the interval between the adjacent tag readers (distance). Therefore, the moving speed of the handrail belt 2 can be calculated quickly, that is, without waiting until the handrail belt 2 makes one round, and a speed abnormality of the handrail belt 2 can be diagnosed more quickly.

  In addition, when a local abnormality occurs in the movement of the handrail belt 2 due to, for example, a foreign object being caught, the diagnostic device 10 is only used when the wireless IC tag 10 passes through the portion where the foreign object is caught. Therefore, the diagnostic device 10 can identify a location where a foreign object is caught by detecting this timing shift.

  As described above, according to the abnormality diagnosis system of the present embodiment, the tag readers 11a, 11b, 11c,... Are installed at a plurality of locations in the circulation movement path of the handrail belt 2, and the tag readers 11a, 11b, 11c,. Because the data reading operation from the wireless IC tag 10 is monitored by the diagnostic device 12, it is possible to diagnose the speed abnormality of the handrail belt 2 more quickly, and the foreign matter on the handrail belt 2 The occurrence location can be specified when the occurrence of biting occurs.

[Third Embodiment]
Next, a third embodiment of the present invention will be described.

  FIG. 4 is a schematic diagram for explaining the outline of the abnormality diagnosis system of the third embodiment. The escalator to be diagnosed is provided with handrail belts 2 on the right side and the left side in the moving direction of step 1, but in this embodiment, as shown in FIG. 4, it is located on the right side of step 1. The wireless IC tag 10R is installed on the handrail belt 2R, the wireless IC tag 10L is installed on the handrail belt 2L located on the left side of Step 1, and the tag reader 11R and the circulation path of the handrail belt 2L are in the vicinity of the circulation path of the handrail belt 2R. The tag readers 11L are respectively installed, and the diagnostic device 12 monitors the data reading operation from the wireless IC tag 10R by the tag reader 11R and the data reading operation from the wireless IC tag 10L by the tag reader 11L.

  As described in the first embodiment, the diagnostic device 12 monitors the data reading operation from the wireless IC tag 10R by the tag reader 11R, thereby diagnosing an abnormality in the speed of the handrail belt 2R located on the right side of Step 1. Further, by monitoring the data reading operation from the wireless IC tag 10L like the tag reader 11L, it is possible to diagnose an abnormality in the speed of the handrail belt 2L located on the left side of Step 1. Furthermore, the diagnostic device 12 can also diagnose a synchronization shift between the handrail belt 2R and the handrail belt 2L by comparing the data reading interval by the tag reader 11R and the data reading interval by the tag reader 11L.

  That is, if a difference in relative moving speed occurs between the handrail belts 2R, 2L due to one-side extension of the left and right handrail belts 2R, 2L in step 1, the data reading interval from the wireless IC tag 10R by the tag reader 11R is determined. A deviation occurs in the data reading interval from the wireless IC tag 10L by the tag reader 11L. Therefore, the diagnostic device 12 compares the data reading interval by the tag reader 11R and the data reading interval by the tag reader 11L, and if there is a deviation between them, a synchronization deviation occurs between the handrail belt 2R and the handrail belt 2L. Can be determined.

  As described above, according to the abnormality diagnosis system of the present embodiment, the wireless IC tag 10R is installed on the handrail belt 2R located on the right side of Step 1, and the wireless IC tag 10L is installed on the handrail belt 2L located on the left side of Step 1. At the same time, the tag reader 11R is installed near the circulation movement path of the handrail belt 2R, and the tag reader 11L is installed near the circulation movement path of the handrail belt 2L, and the data reading operation from the wireless IC tag 10R by the tag reader 11R and the wireless by the tag reader 11L are performed. Since the data reading operation from the IC tag 10L is monitored by the diagnostic device 12, the abnormality of each of the handrail belts 2R, 2L can be individually diagnosed, and the interlocking abnormality of the handrail belts 2R, 2L can be detected. It is possible to diagnose a certain synchronization shift.

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described.

  FIG. 5 is a schematic diagram for explaining the outline of the abnormality diagnosis system of the fourth embodiment. In this embodiment, as shown in FIG. 5, in addition to installing the wireless IC tag 10 on the handrail belt 2 and the tag reader 11 in the vicinity of the circulation movement path of the handrail belt 2, a number of step 1 connected endlessly. The second wireless IC tag 13 is installed in at least one of them, the second tag reader 14 is installed in the vicinity of the circulation movement path in step 1, and the data reading operation from the wireless IC tag 10 by the tag reader 11 is performed. The data reading operation from the second wireless IC tag 13 by the second tag reader 14 is monitored by the diagnostic device 12.

  The second wireless IC tag 13 is written with unique data for step 1 where the second wireless IC tag 13 is installed, specifically, for example, data such as the manufacturing lot number of step 1. The data written in the second wireless IC tag 13 is read by the second tag reader 14 when the second wireless IC tag 13 approaches the second tag reader 14 due to the circular movement in step 1. .

  The second tag reader 14 is installed in the vicinity of the circulation movement path in Step 1 in a state fixed to, for example, a truss or the like. When the second wireless IC tag 13 approaches, the second tag reader 14 is connected to the second wireless IC tag 13. Short-distance wireless communication is performed between them, and the data written in the second wireless IC tag 13 is read. The second tag reader 14 also has a data writing function similar to the tag reader 11 so that the diagnostic result by the diagnostic device 12 can be updated and stored in the second wireless IC tag 13 as needed. It can be used as useful information for subsequent diagnosis of abnormalities.

  As described in the first embodiment, the diagnostic device 12 can diagnose a speed abnormality of the handrail belt 2 by monitoring the data reading operation from the wireless IC tag 10 by the tag reader 11, By monitoring the data reading operation from the second wireless IC tag 13 by the second tag reader 14, the speed abnormality in Step 1 can be diagnosed by the same method as the abnormality diagnosis of the handrail belt 2. Further, the diagnostic device 12 can diagnose a synchronization shift in the circular movement of the handrail belt 12 and step 1 by comparing the data reading interval by the tag reader 11 and the data reading interval by the second tag reader 14.

  That is, as described in the first embodiment, the handrail belt 2 transmits the driving force from the driving device 6 that drives step 1 to the handrail belt driving device 8 via the driving sprocket 4, thereby causing step 1. The handrail belt 2 itself is stretched, the chain 3 connecting a number of steps 1 is stretched, and the handrail belt drive device 8 is in trouble. A relative moving speed difference is generated between the handrail belt 2 and step 1, and a synchronization shift occurs. When a synchronization shift occurs between the handrail belt 2 and step 1, there is a shift between the data reading interval from the wireless IC tag 10 by the tag reader 11 and the data reading interval from the second wireless IC tag 13 by the second tag reader 14. Arise. Therefore, the diagnostic device 12 compares the data reading interval by the tag reader 11 with the data reading interval by the second tag reader 14, and if there is a deviation between them, the synchronization deviation between the handrail belt and step 1 is lost. It can be determined that it has occurred.

  As described above, according to the abnormality diagnosis system of the present embodiment, the data reading operation by the tag reader 11 from the wireless IC tag 10 installed on the handrail belt 2 and the second wireless IC tag 13 installed in step 1 are performed. Since the data reading operation by the second tag reader 14 is monitored by the diagnostic device 12, the abnormality of the handrail belt 2 and the abnormality of step 1 can be individually diagnosed, and the handrail belt 2 and step 1 can be individually diagnosed. It is also possible to diagnose a synchronization shift in the cyclic movement with the.

[Fifth Embodiment]
Next, a fifth embodiment of the present invention will be described.

  FIG. 6 is a schematic diagram for explaining the outline of the abnormality diagnosis system of the fifth embodiment. In the present embodiment, as shown in FIG. 6, in addition to installing the wireless IC tag 10 on the handrail belt 2 and the tag reader 11 in the vicinity of the circulation movement path of the handrail belt 2, the drive sprocket 4 rotated by the drive device 6. A third wireless IC tag 15 is installed at an arbitrary position on the outer peripheral side, a third tag reader 16 is installed in the vicinity of the drive sprocket 4, and a data reading operation from the wireless IC tag 10 by the tag reader 11 is performed. The diagnostic device 12 monitors the data reading operation from the third wireless IC tag 15 by the third tag reader 16.

  The third wireless IC tag 15 is written with unique data about the drive sprocket 4 on which the third wireless IC tag 15 is installed, specifically, for example, data such as the manufacturing lot number of the drive sprocket 4. The data written in the third wireless IC tag 15 is read by the third tag reader 16 when the third wireless IC tag 15 approaches the third tag reader 16 by the rotation of the drive sprocket 4.

  The third tag reader 16 is installed in the vicinity of the drive sprocket 4 in a state of being fixed to, for example, a truss or the like, and when the third wireless IC tag 15 approaches, the third tag reader 16 is in contact with the third wireless IC tag 15. Short-distance wireless communication is performed, and data written in the third wireless IC tag 15 is read. Note that the third tag reader 16 also has a data writing function like the tag reader 11 so that the diagnostic result by the diagnostic device 12 can be updated and stored in the third wireless IC tag 15 as needed. It can be used as useful information for subsequent diagnosis of abnormalities.

  As described in the first embodiment, the diagnostic device 12 can diagnose a speed abnormality of the handrail belt 2 by monitoring the data reading operation from the wireless IC tag 10 by the tag reader 11, By monitoring the data reading operation from the third wireless IC tag 15 by the third tag reader 16, it is possible to diagnose an abnormality of the driving device 6 by the same method as the abnormality diagnosis of the handrail belt 2. Further, the diagnostic device 12 can diagnose an abnormality of the handrail belt driving device 8 by comparing the data reading interval by the tag reader 11 and the data reading interval by the third tag reader 16.

  That is, the handrail belt driving device 8 is configured to drive the handrail belt 2 by the driving force of the driving device 6 being transmitted through the driving sprocket 4 as described above, and the handrail driven by the handrail belt driving device 8. The movement of the belt 2 and the rotation of the driving sprocket 4 that transmits the driving force to the handrail belt driving device 8 are interlocked. However, when an abnormality such as slip occurs in the handrail belt driving device 8, there is a shift in the interlock between the movement of the handrail belt 2 and the rotation of the drive sprocket 4. This appears as a deviation in regularity between the data reading interval from the tag 10 and the data reading interval from the third wireless IC tag 15 by the third tag reader 16. Therefore, the diagnostic device 12 monitors the data reading interval by the tag reader 11 and the data reading interval by the third tag reader 16, and if there is a deviation in regularity between them, the handrail belt driving device 8 is It can be determined that an abnormality has occurred.

  As described above, according to the abnormality diagnosis system of the present embodiment, the data reading operation by the tag reader 11 from the wireless IC tag 10 installed on the handrail belt 2 and the third wireless IC tag 15 installed on the drive sprocket 4 are used. Since the data reading operation by the third tag reader 16 is monitored by the diagnostic device 12, the abnormality of the handrail belt 2 and the abnormality of the driving device 6 can be individually diagnosed and the handrail belt 2 is driven. It is also possible to diagnose an abnormality of the handrail belt drive device 8 that performs the operation.

[Sixth Embodiment]
Next, a sixth embodiment of the present invention will be described.

  FIG. 7 is a block diagram showing the functional connection of each component constituting the abnormality diagnosis system of the sixth embodiment. In the present embodiment, as shown in FIG. 7, a communication unit 126 is added as a functional configuration of the diagnostic device 12, and a diagnosis result by the diagnostic device 12 is remotely installed via a data communication line DT at a remote monitoring center. It is characterized in that it can be transmitted to the monitoring device 20.

  In the first to fifth embodiments described above, the diagnostic device 12 displays the diagnosis result on the display unit 125, so that when the maintenance worker performs maintenance, the display unit 125 is referred to determine whether there is an escalator abnormality. We explained that it is possible to grasp the situation, but if the escalator abnormality can be diagnosed by remote monitoring, and if a maintenance worker goes to the site when an abnormality is found, the maintenance work can be performed. It is thought that it will become more efficient. Therefore, in the present embodiment, the diagnostic device 12 is provided with a communication unit 126 that performs data communication using the data communication line DT with the remote monitoring device 20 installed in the remote monitoring center, and the diagnosis by the diagnostic device 12 is performed. The result can be transmitted to the remote monitoring device 20.

  In the present embodiment, the diagnostic device 12 operates in response to an operation command from the remote monitoring device 20, for example, and performs an escalator abnormality diagnosis as described in the first to fifth embodiments. Then, the diagnosis result is transmitted from the communication unit 126 to the remote monitoring device 20 via the data communication line DT. In addition, the diagnosis of the escalator and the transmission of the diagnosis result by the diagnostic device 12 may be performed not only in the form of a response to the operation command from the remote monitoring device 20, but also periodically at a predetermined time, Moreover, you may make it carry out according to operation of a local manager or a maintenance worker.

  The remote monitoring device 20 installed in the remote monitoring center displays the diagnosis result on, for example, a monitor when the result of the abnormality diagnosis of the escalator is transmitted from the communication unit 126 of the diagnosis device 12 via the data communication line DT. Or anomaly is reported to the monitoring center monitor. Thus, if an abnormality occurs in the escalator to be monitored, the monitoring person at the monitoring center can accurately and reliably grasp the abnormality, and can quickly arrange a maintenance worker.

  As described above, according to the abnormality diagnosis system of the present embodiment, the diagnosis result of the diagnosis device 12 can be transmitted from the communication unit 126 to the remote monitoring device 20 installed in the remote monitoring center via the data communication line DT. As a result, it is possible to diagnose an escalator abnormality by remote monitoring, and to realize further efficiency of maintenance work.

  As described above, the first to sixth embodiments have been specifically described as specific examples of the abnormality diagnosis system to which the present invention is applied. However, the present invention is arbitrarily combined with the technical matters described in the above embodiments. It is also possible to implement. Further, the technical scope of the present invention is not limited to the technical matters disclosed in the description of each of the above embodiments, and is naturally derived in view of general technical common sense based on the above disclosed contents. Modifications and application examples are also included.

The schematic diagram explaining the outline | summary of the escalator used as the diagnostic object of the abnormality diagnosis system of 1st Embodiment. The block diagram which shows an example of the functional structure implement | achieved inside a diagnostic apparatus. The schematic diagram explaining the outline | summary of the abnormality diagnosis system of 2nd Embodiment. The schematic diagram explaining the outline | summary of the abnormality diagnosis system of 3rd Embodiment. The schematic diagram explaining the outline | summary of the abnormality diagnosis system of 4th Embodiment. The schematic diagram explaining the outline | summary of the abnormality diagnosis system of 5th Embodiment. The block diagram which shows the functional connection of each component which comprises the abnormality diagnosis system of 6th Embodiment.

Explanation of symbols

1 Step 2 Handrail belt 4 Drive sprocket (Rotating body)
6 Driving device 8 Belt driving device 10 Wireless IC tag (information storage medium)
11 Tag reader (reading device)
12 diagnostic device 13 second wireless IC tag (second information storage medium)
14 Second tag reader (second reading device)
15 Third wireless IC tag (third information storage medium)
16 Third tag reader (third reading device)
DESCRIPTION OF SYMBOLS 20 Remote monitoring apparatus 121 Operation part 122 Timer 123 Comparison determination part 124 Memory 125 Display part 126 Communication part DT Data communication line

Claims (11)

An abnormality diagnosis system for a passenger conveyor that circulates and moves a number of steps connected endlessly and a handrail belt in synchronization with each other,
An information storage medium installed at an arbitrary position on the handrail belt;
A reader installed near the circulation path of the handrail belt and reading data from the information storage medium in a non-contact manner when the information storage medium approaches due to the circulation movement of the handrail belt;
An abnormality diagnosis system comprising: a diagnosis device that monitors a data reading operation from the information storage medium by the reading device and diagnoses an abnormality of a passenger conveyor based on a monitoring result of the data reading operation.   The diagnostic device stores a handrail belt circulation time required for the handrail belt to make one turn when a passenger conveyor is normal, and compares a data reading interval by the reader with the handrail belt circulation time. The abnormality diagnosis system according to claim 1, wherein an abnormality of the handrail belt is diagnosed.   The diagnostic device stores a moving speed of the handrail belt when a passenger conveyor is normal, calculates a moving speed of the handrail belt from a data reading interval by the reading device, and stores the calculated moving speed as a storage speed. The abnormality diagnosis system according to claim 1, wherein an abnormality of the handrail belt is diagnosed by comparing with a moving speed. The information storage medium is respectively installed on both the handrail belt located on the right side of the step and the handrail belt located on the left side of the step,
The reading devices are respectively installed near both the circulation movement path of the handrail belt located on the right side of the step and the vicinity of the circulation movement path of the handrail belt located on the left side of the step,
The diagnostic device includes a data reading interval by a reader installed in the vicinity of the circulation path of the handrail belt located on the right side of the step and a reading installed in the vicinity of the circulation path of the handrail belt located on the left side of the step. The abnormality diagnosis system according to any one of claims 1 to 3, wherein an abnormality of the handrail belt is diagnosed by comparing with a data reading interval by an apparatus.   5. The abnormality diagnosis system according to claim 1, wherein the reader is installed at a plurality of locations in a circulation movement path of the handrail belt.   The abnormality diagnosis system according to any one of claims 1 to 5, wherein the diagnosis device determines a degree of consumption of a passenger conveyor from the number of times of reading data from the information storage medium by the reader. In the information storage medium, unique data of the handrail belt is written,
The abnormality according to any one of claims 1 to 6, wherein the diagnostic device includes a display unit that displays unique data of the handrail belt read from the information storage medium by the reading device. Diagnostic system.   The abnormality diagnosis system according to claim 1, wherein the reading device has a data writing function for writing a diagnosis result by the diagnosis device to the information storage medium.   The diagnostic apparatus has a communication function of performing data communication with a remote monitoring apparatus installed in a remote place using a communication line and transmitting a diagnosis result to the remote monitoring apparatus. Item 9. The abnormality diagnosis system according to any one of Items 1 to 8. A second information storage medium installed in at least one of the multiple steps;
A second reading device installed in the vicinity of the circulation movement path of the step and reading data from the second information storage medium in a non-contact manner when the second information storage medium approaches by the circulation movement of the step; Prepared,
The diagnostic device compares a data reading interval by the reading device with a data reading interval by the second reading device, and diagnoses a synchronization shift in the circular movement of the handrail belt and the step. The abnormality diagnosis system according to any one of claims 1 to 9. A third information storage medium installed at an arbitrary position in the rotating body that rotates by driving the motor and transmits the driving force of the motor to the handrail belt drive driving device;
A third reading device that is installed in the vicinity of the rotating body and reads data from the third information storage medium in a non-contact manner when the third information storage medium approaches due to the rotation of the rotating body;
The diagnostic device diagnoses an abnormality of the handrail belt driving device based on a data reading interval by the reading device and a data reading interval by the third reading device. The abnormality diagnosis system according to any one of the above.

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