JP2010013254A - Control device of passenger conveyer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively prevent inadvertent restarting of a passenger conveyer caused by remote operation. <P>SOLUTION: After emergency stop of an escalator, when an external command signal for instructing to start the escalator is transmitted from a remote monitor 30 at a remote place, a control part 24 checks an abnormal code output from a safety circuit 22 at the time of the emergency stop against a first code group and a second code group and determines the type of abnormality which has caused the emergency stop of the escalator. If the abnormality having caused the emergency stop of the escalator is a kind of abnormality which requires sufficient confirmation of the situation on site as the status is difficult to be correctly confirmed at the remote place, the external command signal from the remote monitor 30 is cancelled so as not to restart the escalator. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a control device that controls the operation of passenger conveyors such as escalators and moving walkways.

  Passenger conveyors such as escalators and moving walkways are generally provided with a safety circuit that makes an emergency stop of the operation of the passenger conveyor when an abnormality occurs. When the safety circuit is activated and the passenger conveyor comes to an emergency stop, the operator on the passenger conveyor installation site or a maintenance company maintenance worker confirms the abnormal state, and if there is no problem even after restarting, the operation panel The passenger switch is restarted by operating a start switch provided on the vehicle.

However, passenger conveyors are often installed as equipment that is responsible for the main flow lines in facilities such as department stores, supermarkets, and railway stations. Will be spent. Therefore, in recent years, it is possible to check the state of the passenger conveyor from a remote monitoring center or the like, and if there is no problem even if it is restarted immediately, the passenger conveyor can be restarted by operation from a remote location. By doing so, an attempt has been made to shorten the service stop time. For example, Patent Document 1 describes that the passenger conveyor and its surroundings are photographed with a monitoring camera, and when it is confirmed that there is no person, activation control of the passenger conveyor can be performed from a remote monitoring center. Has been.
JP-A-10-236757

  However, when checking the state of the passenger conveyor at a remote location, it is difficult to accurately grasp the details of the abnormality compared to checking at the site, and the passenger conveyor is inadvertently restarted due to an incorrect judgment There is a concern to let you. Moreover, even if there is no intention to restart the passenger conveyor, there is a concern that the passenger conveyor may be inadvertently restarted due to an erroneous operation.

  The present invention was devised in view of the above circumstances, and provides a passenger conveyor control device that can effectively prevent an inadvertent restart of the passenger conveyor due to an operation from a remote location. The purpose is that.

  The control device for a passenger conveyor according to the present invention stops the operation of the passenger conveyor when an abnormality occurs, and outputs a safety circuit that outputs an abnormality code indicating the content of the abnormality that has occurred, and a command signal from an external device at a remote location An external command input means, and a storage unit for storing an abnormality code output from the safety circuit when an abnormality occurs, and when the external command input means inputs a command signal instructing activation of the passenger conveyor from an external device, The abnormal code stored in the storage unit is collated with a predetermined first code group and second code group, and if the abnormal code stored in the storage unit belongs to the first code group, it responds to a command signal from an external device Control means for permitting activation of the passenger conveyor and invalidating the command signal from the external device when the abnormal code stored in the storage unit belongs to the second code group.

  According to the passenger conveyor control device of the present invention, the abnormality classification that causes the passenger conveyor to stop by judging the abnormality code is judged, and the abnormality is a kind of abnormality that requires a sufficient status confirmation at the site, for example. Therefore, it is possible to invalidate the command signal for instructing passenger conveyor activation from an external device at a remote location. Can be prevented.

  Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. In the following embodiments, as an example of a passenger conveyor, an escalator in which a large number of steps move obliquely across the upper and lower floors is illustrated, but of course, the present invention has a large number of steps (step boards) continuously horizontal. The present invention can also be applied effectively when a moving sidewalk that moves in a direction is a control target.

[First Embodiment]
FIG. 1 is a diagram showing a schematic configuration of an escalator control device to which the present invention is applied. As shown in FIG. 1, the escalator to be controlled is supported by a truss 3 that is fastened to an upper floor beam 1 and a lower floor beam 2 and is laid between upper and lower floors. An escalator driving device 4 is installed in the truss 3 on the upper floor beam 1 side. The drive device 4 drives the drive sprocket 6 via the drive chain 5. A driven sprocket 7 that is paired with the driving sprocket 6 is provided in the truss 3 on the lower floor beam 2 side, and a step chain 8 is wound between the driving sprocket 6 and the driven sprocket 7. ing. A number of steps 9 are connected to the step chain 8, and the drive sprocket 6 is rotated by the driving device 4, so that the step chain 8 circulates between the drive sprocket 6 and the driven sprocket 7, and a number of steps. 9 has a structure that circulates between an upper floor entrance and a lower floor entrance along a guide rail (not shown).

  Further, a balustrade 12 including a deck board 10 and a balustrade panel 11 is erected on both the left and right sides of the step 9 that circulates, and a handrail belt 13 is attached to the outer periphery of the balustrade panel 11. The handrail belt 13 is a handrail gripped by a passenger boarded on the step 9. For example, the driving force of the driving device 4 described above is transmitted, so that the periphery of the balustrade panel 11 is synchronized with the movement of the step 9. Go around.

  An operation panel 14 is installed on the deck board 10 on the upper floor and the lower floor. An operation switch for starting / stopping the escalator and a buzzer for starting / stopping operation are provided on the operation panel 14. Various operation switches 15 such as a buzzer switch for sounding, which are operated by an escalator administrator or maintenance worker, are provided. Also, various parts of the escalator to be controlled are installed with various safety devices 16 for detecting an abnormality occurring in the escalator and stopping the operation of the escalator, and various sensors 17 for detecting the operating state of the escalator. ing. The operation switch 15 of the operation panel 14, various safety devices 16, and various sensors 17 are connected to the control panel 20.

  The control panel 20 is provided with an operation circuit 21, a safety circuit 22, an external interface circuit 23, and a control unit 24. The control panel 20 is connected to a remote monitoring device 30 installed in a remote monitoring center via a communication network CN, and can transmit and receive data to and from the remote monitoring device 30. ing.

  The operation circuit 21 supplies power to the motor in the drive device 4 in response to an operation input from the operation switch 15 of the operation panel 14 or an external command signal from a remote monitoring device 30 installed in a remote monitoring center. To control the escalator ascending / descending / stopping. In addition, the operation circuit 21 performs an emergency stop control of the escalator when a stop output is given from the safety circuit 22.

  When any one of the various safety devices 16 provided in each part of the escalator detects an abnormality, the safety circuit 22 gives a stop output to the operation circuit 21 to stop the escalator in an emergency. In addition, when any of the various safety devices 16 detects an abnormality, the safety circuit 22 identifies the safety circuit operation signal indicating that the safety circuit 22 is activated and the safety device 16 that has detected the abnormality. Then, an abnormality code for enabling the contents of the abnormality to be grasped is output to the control unit 24.

  The external interface circuit 23 controls data communication with the remote monitoring device 30 via the communication network CN, and outputs data from the control unit 24 to the communication network CN and receives it by the remote monitoring device 30. In addition, the external command signal transmitted from the remote monitoring device 30 is input via the communication network CN and transmitted to the control unit 24.

  The control unit 24 comprehensively controls these operations while constantly monitoring the operation circuit 21, the safety circuit 22, and the external interface circuit 23. Specifically, the control unit 24 inputs an operation state signal from the operation circuit 21 and grasps the operation state of the escalator based on the operation state signal. In addition, when the safety circuit 22 is activated and the escalator is in an emergency stop, the control unit 24 inputs the operation signal and the abnormality code from the safety circuit 22 as described above, and also outputs the safety circuit operation signal and the abnormality code. In addition, grasp the state of abnormalities occurring in the escalator. Further, when an external command signal from the remote monitoring device 30 is input to the external interface circuit 23, the control unit 24 outputs an operation command corresponding to the external command signal to the operation circuit 21 to respond to the external command signal. In addition, the operation control is performed, and further, when the operation state of the escalator is confirmed by the sensor 17 and an abnormality is detected, the safety circuit 22 is activated to stop the operation of the escalator.

  In addition, the control unit 24 transmits monitoring data such as an escalator operating state and an abnormal state from the external interface circuit 23 to the remote monitoring device 30 via the communication network CN, and the escalator state is monitored at a remote monitoring center. You can check it. In other words, the remote monitoring device 30 installed in the remote monitoring center notifies the operating state of the escalator or the abnormal state by display or sound output based on the monitoring data transmitted from the control unit 24, The monitor at the monitoring center can confirm the state of the escalator at the site at a remote location. The monitoring center monitor inputs the necessary instructions to the remote monitoring device 30 while confirming the state of the escalator, so that an external command signal corresponding to the instructions is sent from the remote monitoring device 30 via the communication network CN. It is possible to transmit to the control panel 20 and control the operation of the escalator at a remote monitoring center.

  By the way, when the operation of the escalator can be remotely controlled from the remote monitoring center as described above, the monitor at the monitoring center mistakenly detects the remote monitoring device 30 while the escalator is in an emergency stop by the operation of the safety circuit 22. If an instruction to restart the escalator is given to the escalator, there is a concern that the escalator may be restarted carelessly, leading to an unexpected situation. Therefore, in the escalator control device of the present embodiment, when an external command signal instructing activation of the escalator is transmitted from the remote monitoring device 30 and this external command signal is input to the external interface circuit 23 of the control panel 20, The control unit 24 of the control panel 20 permits the escalator to be activated according to the external command signal from the remote monitoring device 30 according to the content of the abnormality that caused the emergency stop of the escalator, or the remote monitoring device It is determined whether the external command signal from 30 is invalid.

  Specifically, various abnormality codes that can be output from the safety circuit 22 are classified into a first code group and a second code group according to the type of abnormality, and are described in the control unit 24 of the control panel 20. The classification table 24a is provided. Here, the first code group confirms, for example, whether the emergency stop button is pressed, the skirt guard is caught, the inlet is caught, or the like, whether it is abnormal or has returned to normal. Possible types of abnormality codes are preset. On the other hand, in the second code group, for example, it is difficult to accurately check the abnormal state in a remote place such as a breakage of the drive chain 5 or a failure of a brake built in the drive device 4, and a sufficient situation at the site. An abnormal code of a type that requires confirmation is set in advance. In addition, the control unit 24 is provided with an internal memory 24b for temporarily storing an abnormal code output from the safety circuit 22 when the safety circuit 22 is activated and the escalator stops in an emergency. Then, the control unit 24 stores the abnormal code output from the safety circuit 22 in the internal memory 24b when the escalator is stopped due to the operation of the safety circuit 22, and then the external interface circuit 23 activates the escalator. When an external command signal from the remote monitoring device 30 is input, an abnormal code temporarily stored in the internal memory 24b, that is, an abnormal code representing the content of the abnormality that causes the escalator to stop urgently is read. Then, the abnormal code read from the internal memory 24b is collated with the first code group and the second code group described in the classification table 24a, and if the abnormal code belongs to the first code group, the remote monitoring device 30 The operation command corresponding to the external command signal is output to the operation circuit 21 to allow the escalator to be activated, and when it belongs to the second code group, the external command signal from the remote monitoring device 30 is invalidated and the escalator is activated. Do not.

  FIG. 2 is a block diagram showing an outline of processing in the control unit 24 as described above. Here, as an external command signal from the remote monitoring device 30, an ascending start command signal for instructing start in ascending operation, a descending start command signal for instructing start in descending operation, and a stop command for instructing stop of the escalator One of the signals is assumed to be input.

  When an ascending activation command signal or a descending activation command signal is input to the external interface circuit 23, whether the ascending activation command signal or the descending activation command signal is output is controlled by the gate G1 and the gate G2.

  When the escalator is normally stopped, that is, when the escalator is stopped by the operation of the operation switch 15 of the operation panel 14, the gate G1 permits the output of the ascending activation command signal or the descending activation command signal. On the other hand, when the escalator stops in an emergency, that is, when the escalator stops due to the operation of the safety circuit 22, the abnormal code output from the safety circuit 22 and temporarily stored in the internal memory 24b at the time of the emergency stop is stored in the classification table 24a. If it is not an abnormal code included in the second code group described in the above, the output of the ascending activation command signal or the descending activation command signal is permitted, and if it is an abnormal code included in the second code group, the ascending activation command signal Alternatively, the output of the descending start command signal is shut off.

  Further, when the escalator is normally stopped, that is, when the escalator is stopped by the operation of the operation switch 15 of the operation panel 14, the gate G2 permits the output of the ascending activation command signal or the descending activation command signal. On the other hand, when the escalator stops in an emergency, that is, when the escalator stops due to the operation of the safety circuit 22, the abnormal code output from the safety circuit 22 and temporarily stored in the internal memory 24b at the time of the emergency stop is stored in the classification table 24a. If it is an abnormal code included in the first code group described in the above, the output of the ascending activation command signal or the descending activation command signal is permitted, and if it is not the abnormal code included in the first code group, the ascending activation command signal Alternatively, the output of the descending start command signal is shut off.

  That is, in the example of FIG. 2, when the escalator stops in an emergency, it increases only when the abnormal code output from the safety circuit 22 at the time of the emergency stop belongs to the first code group and does not belong to the second code group. When the output of the start command signal or the descending start command signal is permitted and the abnormal code belongs to the second code group, or when it belongs to neither the first code group nor the second code group, the rising start command signal or The output of the descending start command signal is shut off.

  As described above in detail with reference to specific examples, according to the escalator control device of the present embodiment, after the escalator stops in an emergency, the external command that instructs the remote monitor device 30 at the remote location to start the escalator When the signal is sent, the control unit 24 collates the abnormal code output from the safety circuit 22 at the time of emergency stop with the first code group and the second code group, thereby causing an emergency stop of the escalator. I try to determine the type of anomaly. If the abnormality that caused the emergency stop of the escalator is a type of abnormality that is difficult to confirm accurately at a remote location and that requires a sufficient status confirmation at the site, a remote monitoring device The external command signal from 30 is invalidated and the escalator is not restarted. Therefore, inadvertent restart of the escalator due to an operation from a remote place can be effectively prevented.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. The escalator control device of the present embodiment is an example in which authentication processing of the source of the external command signal is performed when determining whether or not to permit escalator operation control according to the external command signal. The configuration of the escalator control device and the basic control contents are the same as those in the first embodiment described above. Therefore, only the processing by the control unit 24 characteristic of this embodiment will be described below. The description overlapping with the embodiment is omitted.

  Since the control panel 20 is connected to the communication network CN by the external interface circuit 23, an external command signal may be sent from the external device other than the remote monitoring device 30 of the monitoring center to the control panel 20 via the communication network CN. Conceivable. Here, in the monitoring center, the monitoring data from the control panel 20 is transmitted to the remote monitoring device 30 so that the state of the escalator can be confirmed to some extent. However, the state of the escalator is confirmed in other places. Since it is difficult to do so, an external command signal from an external device other than the remote monitoring device 30 is highly likely to have been sent without performing safety confirmation.

  Therefore, in the escalator control device of the present embodiment, identification data for identifying the device from which the external command signal is transmitted is added to the external command signal, and the control unit 24 of the control panel 20 controls the external command signal. The identification data of the device registered in advance as the transmission source of the device is stored, and when the external command signal from the external device is input to the external interface circuit 23, the identification data added to the external command signal is stored. It is determined whether or not the identification data matches, and if they do not match, the external command signal from the external device is invalidated regardless of the result of the abnormal code verification described in the first embodiment. ing.

  FIG. 3 is a block diagram showing an outline of processing in the control unit 24 as described above. In the example shown in FIG. 3, a gate G3 is added to the processing block of FIG. 2 described in the first embodiment, and external command signals input to the external interface circuit 23 are gates G1 and G2. In addition, whether or not output is possible is controlled not only by the gate G3. Further, the identification data of the transmission source is added to the external command signal, and the control unit 24 stores the identification data of the device registered in advance as the transmission source of the external command signal.

  The gate G3 permits the output of the external command signal when the identification data of the external command signal input to the external interface circuit 23 matches the identification data of the device registered in advance, and outputs the external command signal when they do not match. Cut off. That is, in the example of FIG. 3, even if the external command signal input to the external interface circuit 23 is an ascending activation command signal or a descending activation command signal and the output is permitted by the gate G1 and the gate G2, If the identification data added to the command signal does not match the registered identification data, the output is blocked by the gate G3, and the external command signal is invalidated.

  As described above, according to the escalator control device of the present embodiment, when the identification data added to the external command signal from the external device does not match the identification data of the device registered in advance, the external command signal is invalidated. As described above, since the operation control of the escalator according to the external command signal is not performed, it is possible to effectively prevent the inconvenience that the escalator is remotely controlled by the external command signal sent without performing the safety confirmation.

[Third Embodiment]
Next, a third embodiment of the present invention will be described. The escalator control device according to the present embodiment does not allow the start of the escalator according to the external command signal when the abnormality that causes the emergency stop of the escalator is an abnormality that has repeatedly occurred within a predetermined time. It is an example. The configuration of the escalator control device and the basic control contents are the same as those in the first embodiment described above. Therefore, only the processing by the control unit 24 characteristic of this embodiment will be described below. The description overlapping with the embodiment is omitted.

  For example, when the adjustment state of one of the safety devices 16 is not appropriate, even if the escalator is restarted after an emergency stop, the escalator may be repeatedly stopped due to the operation of the same safety device 16 thereafter. In such a case, it is not desirable to restart the escalator by remote control because sufficient confirmation of the situation at the site is required.

  Therefore, in the escalator control device according to the present embodiment, the control unit 24 of the control panel 20 stores the abnormality code output from the safety circuit 22 in the emergency stop of the escalator together with the abnormality occurrence time in the internal memory 24b for remote monitoring. When an external command signal for instructing escalator activation from the device 30 is input to the external interface circuit 23, it is determined whether or not the same abnormality code is repeatedly stored within a predetermined time with reference to the internal memory 24b. When the same abnormal code is repeatedly stored, the external command signal from the remote monitoring device 30 is invalidated regardless of the abnormal code matching result described in the first embodiment.

  FIG. 4 is a block diagram showing an outline of processing in the control unit 24 as described above. In the example shown in FIG. 4, the gate G4 is added to the processing block of FIG. 2 described in the first embodiment, and the rising activation command signal or the falling activation command signal is input to the external interface circuit 23. In this case, whether or not these ascending activation command signals or descending activation command signals can be output is controlled not only by the gates G1 and G2, but also by the gate G4.

  When the escalator stops in an emergency and an abnormal code is output from the safety circuit 22, the control unit 24 reads time data from the clock and stores it in the internal memory 24b together with the abnormal code as an abnormal history. After that, when the escalator stops in an emergency and an abnormal code is output from the safety circuit 22, the time data is sequentially stored in the internal memory 24b as an abnormal history together with the abnormal code. When an ascending activation command signal or a descending activation command signal is input to the external interface circuit 23, the latest abnormality code stored as an abnormality history in the internal memory 24b is compared with the next new abnormality code, and these The difference in the occurrence time of the error is compared with the reference time.

  The gate G4 permits the output of the rising activation command signal or the falling activation command signal when the two abnormal codes compared as described above do not match or when the difference between the abnormality occurrence times is equal to or greater than the reference time. On the other hand, when the two abnormal codes compared with each other match and the difference between the abnormality occurrence times is less than the reference time, the output of the ascending activation command signal or the descending activation command signal is cut off. That is, in the example of FIG. 4, even if the output of the rising start command signal or the falling start command signal input to the external interface circuit 23 is permitted by the gate G1 and the gate G2, the same abnormal code is less than the reference time. When repeatedly stored in the internal memory 24b for a short time, the output of the ascending activation command signal or the descending activation command signal is blocked by the gate G4, and the external command signal is invalidated.

  As described above, according to the escalator control device of the present embodiment, when an abnormality that causes an emergency stop of the escalator is an abnormality that repeatedly occurs within a predetermined time, the escalator from the remote monitoring device 30 The external command signal for instructing activation is disabled, and the escalator is not activated in response to the external command signal. Can be done.

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described. The escalator control device of this embodiment is an example in which an alarm can be output at an escalator installation site by an operation from a remote monitoring center. Since other configurations and control contents are the same as those of the above-described first embodiment, only the alarm output control characteristic of the present embodiment will be described below, and description overlapping with the first embodiment will be described. Is omitted.

  FIG. 5 is a diagram showing a schematic configuration of the escalator control device of the present embodiment. In the present embodiment, an alarm device 25 is connected to the control panel 20, and an external command signal instructing alarm output from the remote monitoring device 30 is transmitted to the control panel 20 via the communication network CN, and the external interface of the control panel 20 When the external command signal is input to the circuit 23, the control unit 24 of the control panel 20 operates the alarm device 25 to sound a buzzer sound. The control unit 24 not only receives an external command signal from the remote monitoring device 30 that instructs alarm output but also inputs an external command signal that instructs the start of the escalator to the external interface circuit 23. A buzzer sound may be generated from the alarm device 25 when the escalator activation is permitted by the input and the abnormal code verification described in the first embodiment.

  As described above, according to the escalator control device of this embodiment, an alarm can be output at an escalator installation site by an operation from a remote monitoring center. It is possible to alert a person in the surroundings when starting up, and remote control of the escalator can be performed in an appropriate state.

[Fifth Embodiment]
Next, a fifth embodiment of the present invention will be described. The escalator control device according to the present embodiment collects and stores the operation sound during operation of the escalator, and when an external command signal instructing activation of the escalator is input after the escalator has stopped in an emergency, the escalator It is judged whether the escalator operation sound at the time of emergency stop includes a predetermined device abnormal sound component. If the device abnormal sound component is included, the escalator corresponding to the external command signal This is an example in which activation of is not permitted. Since other configurations and control contents are the same as those in the first embodiment described above, only the characteristic parts of the present embodiment will be described below, and descriptions overlapping with those in the first embodiment will be omitted. .

  FIG. 6 is a diagram showing a schematic configuration of the escalator control device of the present embodiment. In the present embodiment, a sound collecting device 25 that collects the operating sound of the escalator is connected to the control panel 20. The sound collecting device 25 may be configured to be fixed in the upper truss or the lower truss and collect escalator operating sound from a fixed point, or may be installed in the step 9 together with the step 9. It may be configured to collect escalator operating sound while circulating.

  The control unit 24 of the control panel 20 records the escalator operating sound collected by the sound collecting device 25 during operation of the escalator in the internal memory 24b as needed overwriting, for example, every about 5 minutes. Then, when the safety circuit 22 is activated and the escalator is in an emergency stop, the recording of the escalator operating sound is stopped. Thereafter, when an external command signal from the remote monitoring device 30 instructing activation of the escalator is input to the external interface circuit 23, the escalator operation sound before the emergency stop stored in the internal memory 24b is analyzed, and this When the escalator operation sound includes a predetermined component abnormality sound component, the external command signal from the remote monitoring device 30 is invalidated regardless of the result of the abnormality code verification described in the first embodiment. And so on. As for the sound component of the device abnormality to be determined, the abnormal sound when the device abnormality occurs that requires the on-site situation confirmation is collected in advance and the data is stored in the internal memory 24b or the like. Save it.

  FIG. 7 is a block diagram showing an outline of processing in the control unit 24 as described above. In the example shown in FIG. 7, a gate G5 is added to the processing block of FIG. 2 described in the first embodiment, and an ascending activation command signal or a descending activation command signal is input to the external interface circuit 23. In this case, whether or not these rising activation command signals or descending activation command signals are output is controlled not only by the gates G1 and G2, but also by the gate G5.

  As a result of analyzing the escalator operating sound before the emergency stop, the gate G5 outputs an ascending start command signal or a descending start command signal if the escalator operating sound does not include a predetermined sound component of equipment abnormality. to approve. On the other hand, when the escalator operating sound includes a predetermined sound component of equipment abnormality, the output of the rising activation command signal or the falling activation command signal is cut off. That is, in the example of FIG. 7, even if the output of the rising start command signal or the lower start command signal input to the external interface circuit 23 is permitted by the gate G1 and the gate G2, the escalator operating sound before the emergency stop is generated. When a predetermined component abnormality sound component is included, the output of the ascending activation command signal or the descending activation command signal is blocked by the gate G4, and the external command signal is invalidated.

  As described above, according to the escalator control device of the present embodiment, when the escalator operation sound when the escalator stops emergency includes a predetermined device abnormality sound component, the remote monitoring device 30 The external command signal that instructs the start of the escalator is invalidated and the escalator is not activated in response to the external command signal. The confirmation can be prompted to restart the escalator in an appropriate state.

[Sixth Embodiment]
Next, a sixth embodiment of the present invention will be described. The escalator control device according to the present embodiment is an example in which abnormal reporting by a monitoring panel installed in a monitoring room of a building where an escalator is installed can be prohibited by an external command signal from the remote monitoring device 30. Since other configurations and control contents are the same as those in the first embodiment described above, only the characteristic parts of the present embodiment will be described below, and descriptions overlapping with those in the first embodiment will be omitted. .

  When monitoring the escalator on site, a monitoring panel is installed in the monitoring room of the building, and when the escalator stops in an emergency, an alarm command is output from the control panel 20 to the monitoring panel. When a warning is issued, the on-site monitor is informed of the occurrence of an abnormality. However, when an operator deliberately stops the escalator, such as when checking the operation of the safety device 16 when checking the escalator. It will be bothersome if the alarm is always issued. For this reason, normally, when checking the escalator, the operation check of the safety device 16 is performed in a state in which the alarm command is not output from the control panel 20 to the monitoring panel. In order to prevent the notification command from being output, the operator needs to open the boarding board and switch the switch of the control panel 20 installed in the truss 3, forcing the operator to perform troublesome work. It will be.

  Therefore, in the escalator control device according to the present embodiment, for example, when an operator inputs an instruction for prohibiting abnormal notification to a remote monitoring device 30 provided in a remote monitoring center using a portable terminal, the remote monitoring device 30 When an external command signal for instructing prohibition of abnormality is transmitted to the control panel 20 and this external command signal is input to the external interface circuit 23 of the control panel 20, the control unit 24 reports to the monitoring panel. The output of the command is stopped so that no abnormal alarm is issued.

  FIG. 8 is a diagram showing a schematic configuration of the escalator control device of the present embodiment. In the present embodiment, a monitoring panel 27 installed in the monitoring room is connected to the control panel 20. When an external command signal for instructing prohibition of abnormal reporting from the remote monitoring device 30 is input to the external interface circuit 23, the control unit 24 of the control panel 20 issues a warning to the monitoring panel 27 even when the escalator stops in an emergency. The report command is not output, and the abnormal reporting by the monitoring panel 27 is not performed.

  FIG. 9 is a block diagram showing an outline of processing in the control unit 24 as described above.

  As described in the first embodiment, the control unit 24 of the control panel 20 can grasp whether or not an abnormality has occurred in the escalator based on the operation signal from the safety circuit 22 or the sensor signal from the sensor 17. When an operation signal indicating the occurrence of an abnormality is input from the safety circuit 22 or when it is determined that an abnormality has occurred based on the sensor signal, an issuance for instructing an abnormality report is issued. Generate an information command. Whether or not the notification command generated by the control unit 24 is output is controlled by the gate G6.

  The gate G6 permits the control unit 24 to output a notification command to the monitoring panel 27 in a state where the remote monitoring device 30 has not transmitted an external command signal that instructs the control panel 20 to prohibit the notification. The board 27 is caused to issue an abnormality. On the other hand, when an external command signal instructing prohibition of notification from the remote monitoring device 30 is input to the external interface circuit 23 of the control panel 20, the output of the notification command generated by the control unit 24 is cut off, and the monitoring panel Anomaly reporting at 27 is prohibited.

  As described above, according to the escalator control device of the present embodiment, the safety device 16 can be controlled so that the monitoring panel 27 does not issue an abnormality by the external command signal from the remote monitoring device 30. When checking the escalator that performs the operation check, it is possible to inhibit the monitoring panel 27 from issuing an abnormality without performing troublesome work such as opening the boarding board and operating the control panel 20 by the operator. Efficiency can be improved.

[Seventh Embodiment]
Next, a seventh embodiment of the present invention will be described. The escalator control device of the present embodiment is a modification of the sixth embodiment, and the abnormal reporting by the monitoring panel 27 can be prohibited by an external command signal from the remote monitoring device 30 only during inspection of the escalator. It is an example.

  In general, the escalator inspection work is performed not only for confirming the operation of the safety device 16 but also for various items. For this reason, as described in the sixth embodiment, when an operator starts an inspection, he / she inputs an instruction for prohibiting abnormal reporting to the remote monitoring device 30 using a portable terminal, and prohibits abnormal reporting from the remote monitoring device 30. When an abnormal command is issued by the monitoring panel 27 by sending an external command signal instructing to the control panel 20, it is possible to forget to cancel the setting of the abnormal alarm prohibition at the end of the work.

  Therefore, in the escalator control device according to the present embodiment, when an external command signal instructing prohibition of abnormal reporting from the remote monitoring device 30 is input to the external interface circuit 23 of the control panel 20, the control unit 24 of the control panel 20. However, it is determined whether or not the escalator is being inspected, and the external command signal for instructing the prohibition of the abnormal notification is valid only when the escalator is being inspected and the abnormal reporting by the monitoring panel 27 is prohibited. Specifically, for example, a unique code is transmitted to the remote monitoring device 30 during the inspection of the escalator so that the remote monitoring device 30 can grasp whether the escalator is being checked. Then, when an instruction for prohibiting abnormal reporting is input by, for example, an operation of a worker's mobile terminal, the remote monitoring device 30 determines whether or not the escalator is being inspected together with an external command signal instructing prohibition of abnormal reporting. The inspection signal shown is transmitted to the control panel 20. As a result, the control panel 20 determines whether or not the escalator is being inspected based on the inspection signal from the remote monitoring device 30, and prohibits an abnormal alarm from the remote monitoring device 30 only when the escalator is being inspected. The external command signal can be made effective, and the control for prohibiting the abnormal reporting by the monitoring panel 27 can be performed.

  FIG. 10 is a block diagram showing an outline of processing in the control unit 24 as described above.

  As in the sixth embodiment, the control unit 24 of the control panel 20 receives an operation signal indicating the occurrence of an abnormality from the safety circuit 22 or determines that an abnormality has occurred based on the sensor signal. In addition, an alarm command for instructing an abnormal alarm is generated. Whether or not the notification command generated by the control unit 24 is output is controlled by the gate G6.

  The gate G6 permits the control unit 24 to output a notification command to the monitoring panel 27 in a state where the remote monitoring device 30 has not transmitted an external command signal that instructs the control panel 20 to prohibit the notification. The board 27 is caused to issue an abnormality. In addition, even when an external command signal for instructing prohibition of notification is transmitted from the remote monitoring device 30 to the control panel 20, if the inspection signal from the remote monitoring device 30 does not indicate that the inspection is in progress, the control unit 24 is allowed to output a notification command to the monitoring panel 27 and causes the monitoring panel 27 to issue an abnormality. On the other hand, when an external command signal instructing prohibition of alarm is transmitted from the remote monitoring device 30 to the control panel 20, and the inspection signal from the remote monitoring device 30 indicates that the inspection is in progress, the control unit The output of the notification command generated at 24 is cut off, and the abnormal reporting at the monitoring panel 27 is prohibited.

  As described above, according to the escalator control device of the present embodiment, since an external command signal from the remote monitoring device 30 can prohibit an abnormal alarm from the monitoring panel 27 only during escalator inspection, For example, even if an operator who checks the escalator forgets to cancel the setting of prohibition of abnormal alarm at the end of the work, it automatically returns to a state where an abnormal alarm is issued by the monitoring panel 27 after the inspection is completed. be able to.

[Eighth Embodiment]
Next, an eighth embodiment of the present invention will be described. The escalator control device according to the present embodiment is a modification of the sixth embodiment, and allows an on-site worker to easily check whether or not the abnormal reporting on the monitoring panel 27 is prohibited. is there.

  When the abnormal reporting on the monitoring panel 27 is prohibited by remote operation, as described above, for example, the remote monitoring device 30 prohibits the abnormal reporting from the remote monitoring device 30 to the control panel 20 in accordance with the operation using the portable terminal by the worker. An external command signal is sent to indicate that the external command signal has been properly transmitted according to the operator's operation. In order to prevent the abnormal notification from being correctly set, it is desirable that the worker can easily check whether the abnormal notification on the monitoring panel 27 is prohibited.

  Therefore, in the escalator control device according to the present embodiment, when an abnormal alarm is prohibited on the monitoring panel 27, an operator can add a display for displaying that fact in characters or graphics so that the worker can check it. I have to.

  FIG. 11 is a diagram showing a schematic configuration of the escalator control device of the present embodiment. In the present embodiment, the display device 28 is connected to the control panel 20, and when an external command signal instructing prohibition of abnormal reporting from the remote monitoring device 30 is input to the external interface circuit 23, the control of the control panel 20 is performed. The unit 24 displays on the display 28 that the abnormal reporting on the monitoring panel 27 is prohibited.

  FIG. 12 is a block diagram showing an outline of processing in the control unit 24 as described above.

  As in the sixth embodiment, the control unit 24 of the control panel 20 receives an operation signal indicating the occurrence of an abnormality from the safety circuit 22 or determines that an abnormality has occurred based on the sensor signal. In addition, an alarm command for instructing an abnormal alarm is generated. Whether or not the notification command generated by the control unit 24 is output is controlled by the gate G6.

  The gate G6 permits the control unit 24 to output a notification command to the monitoring panel 27 in a state where the remote monitoring device 30 has not transmitted an external command signal that instructs the control panel 20 to prohibit the notification. The board 27 is caused to issue an abnormality. On the other hand, when an external command signal instructing prohibition of notification from the remote monitoring device 30 is input to the external interface circuit 23 of the control panel 20, the output of the notification command generated by the control unit 24 is cut off, and the monitoring panel Anomaly reporting at 27 is prohibited.

  Further, when an external command signal instructing prohibition of notification from the remote monitoring device 30 is input to the external interface circuit 23 of the control panel 20, the control unit 24 is prohibited from issuing an abnormal report on the monitoring panel 27. The display 28 is activated by generating a display output for displaying the above on the display 28.

  As described above, according to the escalator control device of the present embodiment, when an abnormal alarm is prohibited on the monitoring panel 27, the fact is displayed on the display 28, so that the on-site worker can display it. By referring to the display on the device 28, it can be easily confirmed that the abnormal reporting on the monitoring panel 27 is prohibited.

  The first to eighth embodiments described above exemplify an application example of the present invention, and the technical scope of the present invention is limited to the contents described in the above embodiments. Not intended. That is, the technical scope of the present invention is not limited to the specific technical matters disclosed in the above embodiments, but includes various modifications, changes, alternative techniques, and the like that can be easily derived from this disclosure.

The figure which shows schematic structure of the escalator control apparatus to which this invention is applied. The block diagram which shows the outline | summary of the process by the control part of the escalator control apparatus of 1st Embodiment. The block diagram which shows the outline | summary of the process by the control part of the escalator control apparatus of 2nd Embodiment. The block diagram which shows the outline | summary of the process by the control part of the escalator control apparatus of 3rd Embodiment. The figure which shows schematic structure of the escalator control apparatus of 4th Embodiment. The figure which shows schematic structure of the escalator control apparatus of 5th Embodiment. The block diagram which shows the outline | summary of the process by the control part of the escalator control apparatus of 5th Embodiment. The figure which shows schematic structure of the escalator control apparatus of 6th Embodiment. The block diagram which shows the outline | summary of the process by the control part of the escalator control apparatus of 6th Embodiment. The block diagram which shows the outline | summary of the process by the control part of the escalator control apparatus of 7th Embodiment. The figure which shows schematic structure of the escalator control apparatus of 8th Embodiment. The block diagram which shows the outline | summary of the process by the control part of the escalator control apparatus of 8th Embodiment.

Explanation of symbols

16 Safety device 20 Control panel 21 Operation circuit 22 Safety circuit 23 External interface circuit (external command input means)
24 Control unit (control means)
25 Alarm device (alarm output means)
26 Sound collecting device (sound collecting means)
27 Monitoring board (reporting means)
28 Display (display means)

Claims (8)

In a passenger conveyor control device that circulates a number of steps connected endlessly and conveys passengers who have boarded the steps,
A safety circuit that stops the operation of the passenger conveyor when an abnormality occurs and outputs an abnormality code indicating the content of the abnormality that has occurred,
An external command input means for inputting a command signal from an external device at a remote location;
A storage unit that stores an abnormality code output from the safety circuit when an abnormality occurs, and when the external command input means inputs a command signal instructing activation of a passenger conveyor from the external device, the storage unit The stored abnormal code is collated with a predetermined first code group and second code group, and when the abnormal code stored in the storage unit belongs to the first code group, it responds to a command signal from the external device. And a control means for disabling a command signal from the external device when the abnormality code stored in the storage unit belongs to the second code group and the passenger conveyor is permitted to start. Conveyor control device. Identification data for identifying the external device of the transmission source is added to the command signal from the external device,
The control means determines whether or not the identification data added to the command signal matches the predetermined identification data when the external command input means inputs a command signal from the external device; 2. The passenger conveyor control device according to claim 1, wherein, if they do not match, the command signal from the external device is invalidated regardless of the result of checking the abnormal code.   The control means stores the abnormality code output from the safety circuit when an abnormality occurs in the storage unit together with the abnormality occurrence time, and the external command input means inputs a command signal instructing activation of a passenger conveyor from the external device. If the same abnormal code is repeatedly stored in the predetermined time in the storage unit, and the same abnormal code is repeatedly stored in the predetermined time, the result of checking the abnormal code 3. The passenger conveyor control device according to claim 1, wherein a command signal from the external device is invalidated regardless of whether or not. Further comprising an alarm output means for outputting an alarm,
4. The control unit according to claim 1, wherein the control unit activates the alarm output unit when the external command input unit inputs a command signal instructing alarm output from the external device. 5. The control apparatus of the passenger conveyor of description. It further comprises sound collecting means for collecting the operating sound of the passenger conveyor,
The control means stores the passenger conveyor operating sound collected by the sound collecting means in the storage unit, and the external command input means inputs a command signal instructing activation of the passenger conveyor from the external device. In addition, it is determined whether or not the passenger conveyor operating sound at the time of the occurrence of an abnormality includes a predetermined sound component of the equipment abnormality, and if the sound component of the equipment abnormality is included, the result of checking the abnormality code Regardless, the control signal for the passenger conveyor according to any one of claims 1 to 4, wherein a command signal from the external device is invalidated. It further comprises an alarm means for issuing an abnormal alarm when the passenger conveyor stops abnormally,
2. The control unit, when the external command input unit inputs a command signal for instructing prohibition of an abnormal report from the external device, prohibits the abnormal report by the report unit. The control apparatus of the passenger conveyor as described in any one of thru | or 5.   The control means determines whether or not the passenger conveyor is being inspected when the external command input means inputs a command signal for instructing prohibition of abnormal alarm from the external device, and the passenger conveyor is being inspected. 7. The passenger conveyor control device according to claim 6, wherein abnormal reporting by said reporting means is prohibited in the case of It further comprises display means for displaying that abnormal reporting by the reporting means is prohibited,
The control means prohibits the abnormal reporting by the reporting means and activates the display means when the external command input means inputs a command signal instructing prohibition of the abnormal reporting from the external device. The passenger conveyor control device according to claim 6 or 7, characterized in that

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