WO2020179011A1 - Elevator control system to prevent automatic operation during maintenance work in elevator shaft - Google Patents

Elevator control system to prevent automatic operation during maintenance work in elevator shaft Download PDF

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Publication number
WO2020179011A1
WO2020179011A1 PCT/JP2019/008851 JP2019008851W WO2020179011A1 WO 2020179011 A1 WO2020179011 A1 WO 2020179011A1 JP 2019008851 W JP2019008851 W JP 2019008851W WO 2020179011 A1 WO2020179011 A1 WO 2020179011A1
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WO
WIPO (PCT)
Prior art keywords
elevator
hoistway
control system
unit
operation mode
Prior art date
Application number
PCT/JP2019/008851
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French (fr)
Japanese (ja)
Inventor
正博 檜森
Original Assignee
三菱電機ビルテクノサービス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機ビルテクノサービス株式会社 filed Critical 三菱電機ビルテクノサービス株式会社
Priority to CN201980089572.2A priority Critical patent/CN113329963B/en
Priority to JP2019541823A priority patent/JP6791395B1/en
Priority to PCT/JP2019/008851 priority patent/WO2020179011A1/en
Publication of WO2020179011A1 publication Critical patent/WO2020179011A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators

Definitions

  • the present invention relates to an elevator control system.
  • Patent Document 1 discloses an example of an elevator.
  • the diagnostic operation command device for the elevator causes the control device to perform automatic diagnostic operation of the elevator.
  • the connection between the control device and the diagnostic operation command device is cut off when the maintenance operation switch is turned on.
  • the operation of the control device of Patent Document 1 is based on the operation of the maintenance operation switch by the maintenance personnel.
  • the maintenance operation switch may be opened during the maintenance work due to an operation error of the maintenance personnel.
  • the maintenance personnel may continue the maintenance work without noticing that the maintenance operation switch is not turned on.
  • An object of the present invention is to provide an elevator control system that does not automatically operate when maintenance work is being performed on a hoistway.
  • the elevator control system a switching unit that switches the operation mode of the elevator including the automatic operation mode in the operation mode, the illuminance sensor provided in the elevator hoistway, based on the illuminance measured by the illuminance sensor, A suppression unit that outputs a suppression signal that suppresses switching to the automatic operation mode to the switching unit.
  • An elevator control system includes a switching unit that switches an operation mode of an elevator including an automatic operation mode as an operation mode, an image sensor that captures an image of an interior of an elevator hoistway, and an image captured by the image sensor.
  • a video processing unit that detects the entrance and exit of maintenance personnel to and from the hoistway, and a counting unit that counts the number of maintenance personnel who are performing maintenance work on the hoistway based on the information of the entrance and exit detected by the video processing unit.
  • a suppression unit that outputs a suppression signal that suppresses switching to the automatic operation mode to the switching unit based on the number of people counted by the counting unit.
  • the control system includes a switching unit and a suppressing unit.
  • the switching unit switches the operation mode of the elevator.
  • the elevator includes an automatic operation mode as an operation mode.
  • the suppression unit outputs, to the switching unit, a suppression signal that suppresses switching to the automatic operation mode based on the hoistway information acquired by the sensor.
  • the control system does not allow the elevator to operate automatically when maintenance work is being performed on the hoistway.
  • FIG. 7 is a flowchart showing an example of the operation of the control system according to the second embodiment.
  • FIG. 6 is a diagram showing a hardware configuration of a main part of the control system according to the second embodiment.
  • FIG. 1 is a configuration diagram of a control system according to the first embodiment.
  • the elevator 1 is provided in a building.
  • the building has multiple floors.
  • the hoistway 2 penetrates each of a plurality of floors of a building.
  • each of the plurality of landings 3 is provided on each of the plurality of floors of the building.
  • a hall entrance/exit 4 is provided in each of the plurality of halls 3.
  • the landing doorway 4 is an opening leading to the hoistway 2.
  • the entrance/exit 4 is an example of an entrance/exit of the hoistway 2.
  • the pit 5 is provided at the lower end of the hoistway 2.
  • the elevator 1 includes a hoist 6, a main rope 7, a car 8, and a counterweight 9.
  • the hoisting machine 6 is provided, for example, in the upper part of the hoistway 2.
  • the hoisting machine 6 is a device that generates a driving force.
  • the main rope 7 is wound around the hoisting machine 6.
  • the main rope 7 is a device that moves by a driving force generated by the hoisting machine 6.
  • One end of the main rope 7 is provided in the car 8, for example.
  • the other end of the main rope 7 is provided on, for example, a counterweight 9.
  • the car 8 is provided in the hoistway 2.
  • the car 8 is a device that transports a user or the like between a plurality of floors of a building by following the movement of the main rope 7 and traveling vertically inside the hoistway 2.
  • the car 8 includes a car door 10.
  • the car door 10 is a device that opens and closes when the car 8 is stopped on any of a plurality of floors so that a user or the like can get on and off the car 8.
  • the counterweight 9 is provided in the hoistway 2.
  • the counterweight 9 is a device for balancing the load due to the weight of the car 8 applied to one side of the hoisting machine 6 through the main rope 7 and the load applied to the other side of the hoisting machine 6 through the main rope 7.
  • the elevator 1 has a plurality of landing doors 11.
  • Each of the plurality of hall doors 11 is provided at each hall entrance/exit 4 of the plurality of halls 3.
  • Each of the plurality of landing doors 11 is a device that opens and closes in conjunction with the car door 10 when the car 8 is stopped on the floor on which the landing door 11 is provided.
  • Elevator 1 is equipped with a control system 12.
  • the control system 12 includes a control panel 13 and an automatic operation suppression device 14.
  • the control panel 13 controls the operation of the elevator 1.
  • the operation of the elevator 1 includes, for example, traveling of the car 8.
  • the control panel 13 includes a switching unit 15.
  • the switching unit 15 is a unit that switches the operation mode of the elevator 1.
  • the operation mode of the elevator 1 includes an automatic operation mode and a manual operation mode. In the automatic operation mode, the car 8 is run and stopped without the operation of the maintenance staff 16.
  • the automatic operation mode includes, for example, a normal operation mode or an automatic diagnosis operation mode.
  • traveling and stopping of the car 8 are performed by the operation of the maintenance staff 16.
  • the manual operation mode includes, for example, an operation mode during maintenance work.
  • the operation mode may be switched by, for example, the operation of a changeover switch (not shown) by the maintenance staff 16.
  • the automatic driving suppression device 14 includes an illuminance sensor 17 and a suppression unit 18.
  • Illuminance sensor 17 is provided in hoistway 2.
  • the illuminance sensor 17 is a device for measuring illuminance.
  • the illuminance sensor 17 has a measurement surface for measuring illuminance.
  • the measurement surface of the illuminance sensor 17 is directed to a place where maintenance work is performed inside the hoistway 2.
  • the illuminance sensor 17 is provided on the inner wall of the hoistway 2, for example. In this example, the measurement surface of the illuminance sensor 17 faces the pit 5.
  • the suppression unit 18 is connected to the illuminance sensor 17 so as to obtain information on the measured illuminance.
  • the suppression unit 18 is an arithmetic unit such as a microcomputer.
  • the suppression unit 18 is connected to the control panel 13 so that the suppression signal can be output to the switching unit 15 based on the illuminance measured by the illuminance sensor 17.
  • the suppression signal is a signal that suppresses switching to the automatic operation mode.
  • the maintenance staff 16 performs maintenance work in the pit 5 inside the hoistway 2.
  • the maintenance work is, for example, an inspection of the maintenance target device 19.
  • the maintenance target device 19 is a device that is a target of maintenance work in the hoistway 2.
  • the maintenance target device 19 is provided in the hoistway 2.
  • the maintenance target device 19 is, for example, a seismograph, a tensioning wheel of a compensation rope or a governor rope, or a shock absorber.
  • the maintenance staff 16 switches the operation mode of the elevator 1 to the operation mode at the time of inspection.
  • the maintenance staff 16 opens the hall door 11 of the hall 3 on the lowest floor.
  • the maintenance staff 16 turns on the portable lighting device 20, for example. In this example, the lighting device 20 is not connected to the elevator 1.
  • the maintenance staff 16 illuminates the inside of the hoistway 2 with the lighting device 20.
  • the maintenance staff 16 gets off from the entrance/exit 4 to the pit 5.
  • the maintenance staff 16 secures the illuminance required for the maintenance work by the lighting device 20.
  • the illuminance sensor 17 of the automatic driving restraint device 14 measures the illuminance.
  • the suppression unit 18 acquires the measured illuminance value from the illuminance sensor 17.
  • the suppression unit 18 compares the acquired illuminance value with a preset threshold value.
  • the threshold value is, for example, a value set as a lower limit value of the illuminance required for maintenance work.
  • the suppression unit 18 determines that the maintenance work is being performed by the maintenance staff 16 when the acquired illuminance value exceeds the threshold value.
  • the suppression unit 18 outputs a suppression signal to the switching unit 15 of the control panel 13.
  • the control panel 13 receives the suppression signal.
  • the switching unit 15 of the control panel 13 does not switch the operation mode to the automatic operation mode while receiving the suppression signal. For example, if the maintenance worker 16 performs an operation of switching to the normal operation mode during this period, the switching unit 15 does not switch to the automatic operation mode by the operation.
  • the control panel 13 receives a control signal for switching to the operation mode at the time of automatic diagnosis due to an earthquake that occurs during this period, the switching unit 15 does not switch to the automatic operation mode by the control signal.
  • the maintenance staff 16 performs maintenance work in the pit 5.
  • the maintenance staff 16 returns to the hall 3 from the hall entrance/exit 4 after the maintenance work.
  • the maintenance worker 16 turns off the lighting device 20.
  • the illuminance sensor 17 measures the illuminance.
  • the suppression unit 18 acquires the measured illuminance value from the illuminance sensor 17.
  • the suppression unit 18 compares the acquired illuminance value with a preset threshold value. When the acquired illuminance value does not exceed the threshold value, the suppression unit 18 determines that the maintenance worker 16 is not performing maintenance work.
  • the suppression unit 18 does not output a suppression signal to the control panel 13 when it is determined that maintenance work has not been performed. Further, the suppression unit 18 may determine that the maintenance work by the maintenance staff 16 has not been performed when the acquired illuminance value does not exceed the threshold value for a predetermined time.
  • the maintenance staff 16 performs an operation to switch the operation mode of the elevator 1 to the normal operation mode.
  • the switching unit 15 of the control panel 13 switches to the normal operation mode by the operation of the maintenance staff 16.
  • the control system 12 includes a switching unit 15, an illuminance sensor 17, and a suppressing unit 18.
  • the switching unit 15 switches the operation mode of the elevator 1.
  • the elevator 1 includes an automatic operation mode as an operation mode.
  • the illuminance sensor 17 is provided in the hoistway 2 of the elevator 1.
  • the suppression unit 18 outputs a suppression signal to the switching unit 15 based on the illuminance measured by the illuminance sensor 17.
  • the suppression signal is a signal that suppresses switching to the automatic operation mode.
  • the workability of maintenance work is affected by the illuminance. For this reason, the illuminance of the hoistway 2 is ensured while the maintenance work is being performed.
  • the suppression unit 18 outputs the suppression signal to the switching unit 15 based on the illuminance of the hoistway 2.
  • the control system 12 does not automatically operate the elevator 1 when maintenance work is being performed on the hoistway 2. Since the control system 12 includes the illuminance sensor 17, even when the maintenance staff 16 performs maintenance work using the lighting device 20 that is not connected to the elevator 1, the control system 12 automatically operates the elevator 1 during maintenance work. Can be suppressed.
  • the suppression unit 18 also outputs a suppression signal when the illuminance measured by the illuminance sensor 17 exceeds a preset threshold value.
  • the suppression unit 18 switches whether to output a suppression signal by comparing the current value of the illuminance measured by the illuminance sensor 17 with the threshold value. Therefore, the suppression unit 18 can be easily configured. Further, when the state in which the value of the illuminance acquired by the suppression unit 18 does not exceed the threshold value continues for a predetermined time, it may be determined that the maintenance work by the maintenance staff 16 has not been performed. At this time, for example, even when the illumination is temporarily turned off during maintenance work, the suppression unit 18 does not immediately stop outputting the suppression signal.
  • the illumination is temporarily turned off, for example, when the maintenance staff 16 turns off the illumination by the illumination device 20 by an erroneous operation, or when the illumination by the illumination device 20 is turned off due to a lamp burnout or the like. Including. This improves safety in maintenance work.
  • the illuminance sensor 17 may be provided adjacent to the entrance of the hoistway 2.
  • the illuminance sensor 17 is provided, for example, below the entrance.
  • the maintenance staff 16 passes through the doorway at the start and end of the work regardless of the content of the work in the maintenance work on the hoistway 2. At this time, when the illuminance required for the passage of the entrance / exit is secured, the switching of the operation mode of the elevator 1 to the automatic operation mode is suppressed. Therefore, the control system 12 can suppress the automatic operation of the elevator 1 during the maintenance work regardless of the content of the work.
  • the illuminance sensor 17 may be provided below the car 8 of the elevator 1. Alternatively, the illuminance sensor 17 may be provided below the counterweight 9 of the elevator 1. The illuminance sensor 17 may be provided below both the car 8 and the counterweight 9 of the elevator 1.
  • the area of the pit 5 is not occupied by the device of the control system 12.
  • the introduction of the control system 12 does not impair the workability of maintenance work.
  • the car 8 and the counterweight 9 are arranged above the working range of the maintenance staff 16 who is working in the pit 5. Therefore, the illuminance sensor 17 is not easily hidden by the hands of the maintenance staff 16 who is performing maintenance work.
  • the illuminance sensor 17 may be provided above the car 8 of the elevator 1.
  • the illuminance sensor 17 may be provided on the ceiling of the hoistway.
  • the maintenance worker 16 may perform maintenance work on, for example, a car 8 inside the hoistway 2.
  • the maintenance target device 19 is provided, for example, on the car 8 inside the hoistway 2, the ceiling of the hoistway 2, or the inner wall of the hoistway 2.
  • the maintenance target device 19 is, for example, the control panel 13, the hoisting machine 6, the speed governor, or a device on the car 8.
  • the measurement surface of the illuminance sensor 17 is directed to the space above the car 8, for example.
  • the control system 12 does not automatically operate the elevator 1 when maintenance work is being performed on the car 8.
  • the illuminance sensor 17 may be provided in the maintenance target device 19 inside the hoistway 2.
  • the control system 12 can more reliably suppress the automatic operation of the elevator 1 during the maintenance work.
  • the elevator 1 may be, for example, a see-through elevator.
  • a see-through elevator In the see-through elevator, light from the outside of the hoistway 2 enters.
  • the illuminance in the hoistway 2 changes due to the change of light from the outside with time.
  • the suppression unit 18 may switch the output of the suppression signal by another method of comparing the magnitude of the current value of the illuminance measured by the illuminance sensor 17 with the threshold value. For example, the suppression unit 18 starts outputting a suppression signal when the amount of positive change in illuminance measured by the illuminance sensor 17 exceeds a preset threshold value. The suppression unit 18 ends the output of the suppression signal when the absolute value of the amount of negative change in illuminance measured by the illuminance sensor 17 exceeds a preset threshold value.
  • the threshold value is set to, for example, the value of the amount of change in illuminance that is increased by lighting the lighting device 20.
  • part or all of the automatic driving suppression device 14 may be part of the control panel 13, for example.
  • the switching unit 15 may be provided in a device outside the control panel 13.
  • the control system 12 may also include a plurality of illuminance sensors 17.
  • the suppression unit 18 may output the suppression signal based on the calculated value calculated from the illuminance measured by each of the plurality of illuminance sensors 17.
  • the calculated value is, for example, an average value of illuminance measured by each of the plurality of illuminance sensors 17, or a maximum value of illuminance measured by each of the plurality of illuminance sensors 17.
  • the lighting device 20 is a portable lighting device 20
  • the lighting device 20 is permanently installed in the pit 5 or outside the car 8 in advance for maintenance work. It may be an inspection light.
  • Embodiment 2 In the second embodiment, points different from the example disclosed in the first embodiment will be described in detail. As for the features not described in the second embodiment, any of the features disclosed in the first embodiment may be adopted.
  • FIG. 2 is a configuration diagram of a control system according to the second embodiment.
  • the automatic driving suppression device 14 includes a video sensor 21, a video processing unit 22, a counting unit 23, and a suppression unit 18.
  • the image sensor 21 is provided, for example, in the hoistway 2.
  • the image sensor 21 is a device that captures an image inside the hoistway 2.
  • the image sensor 21 is, for example, a camera.
  • the image sensor 21 has a photographing surface for photographing an image.
  • the imaging surface of the image sensor 21 is directed to a place where maintenance work is performed inside the hoistway 2.
  • the image sensor 21 is provided on the inner wall of the hoistway 2, for example.
  • the image sensor 21 is provided above the hall entrance/exit 4, for example. In this example, the shooting surface of the image sensor 21 is directed to the pit 5.
  • the video processing unit 22 is connected to the video sensor 21 so as to be able to acquire information on the captured video.
  • the image processing unit 22 is a device that detects the entry and exit of the maintenance staff 16 into the hoistway 2 by performing image processing on the image captured by the image sensor 21.
  • the counting unit 23 is connected to the video processing unit 22 so as to be able to acquire information on the detected entrance and exit.
  • the counting unit 23 is a device that counts the number of maintenance personnel 16 performing maintenance work on the hoistway 2 based on the acquired entry / exit information.
  • the counting unit 23 stores the number of maintenance personnel 16. When the maintenance work is not performed, the number of the maintenance personnel 16 stored in the counting unit 23 is zero.
  • the suppression unit 18 is connected to the counting unit 23 so that the information of the counted number of people can be acquired.
  • the suppression unit 18 is connected to the control panel 13 so that the suppression signal can be output to the switching unit 15 based on the number of people counted in the counting unit 23.
  • the maintenance worker 16 performs maintenance work in the pit 5 inside the hoistway 2.
  • the maintenance staff 16 switches the operation mode of the elevator 1 to the operation mode at the time of inspection.
  • the maintenance staff 16 opens the hall door 11 of the hall 3 on the lowest floor.
  • the maintenance staff 16 turns on the lighting device 20 provided in the hoistway 2, for example.
  • the maintenance staff 16 illuminates the inside of the hoistway 2 with the lighting device 20.
  • the maintenance staff 16 gets off from the entrance/exit 4 to the pit 5.
  • the maintenance staff 16 secures the illuminance required for the maintenance work by the lighting device 20.
  • the image sensor 21 of the automatic driving suppression device 14 captures the image of the pit 5.
  • the video processing unit 22 acquires information on the captured video from the video sensor 21.
  • the image processing unit 22 detects the movement of the maintenance staff 16 by performing image processing on the acquired image.
  • the image processing unit 22 detects the maintenance personnel 16 who enters the hoistway 2 through the hall entrance/exit 4.
  • the video processing unit 22 outputs the incoming/outgoing information representing the detection result to the counting unit 23.
  • the entry / exit information includes, for example, the number of maintenance personnel 16 who have detected a movement entering the hoistway 2.
  • the counting unit 23 acquires the detected entry/exit information from the video processing unit 22.
  • the counting unit 23 adds the number of maintenance personnel 16 whose movement into the hoistway 2 has been detected to the stored number of maintenance personnel 16.
  • the suppression unit 18 acquires the number of maintenance personnel 16 stored in the counting unit 23. The suppression unit 18 determines whether the acquired number of people is zero. When the acquired number of people is not 0, the suppression unit 18 determines that the maintenance worker 16 is performing maintenance work. When the suppression unit 18 determines that maintenance work is being performed, the suppression unit 18 outputs a suppression signal to the switching unit 15 of the control panel 13.
  • the control panel 13 receives the control signal.
  • the switching unit 15 of the control panel 13 does not switch the operation mode to the automatic operation mode while receiving the suppression signal.
  • the maintenance staff 16 performs maintenance work in the pit 5.
  • the maintenance staff 16 returns to the hall 3 from the hall entrance/exit 4 after the maintenance work.
  • the image sensor 21 captures an image of the pit 5.
  • the video processing unit 22 acquires information on the captured video from the video sensor 21.
  • the image processing unit 22 detects the movement of the maintenance staff 16 by performing image processing on the acquired image.
  • the video processing unit 22 detects the maintenance staff 16 exiting the hoistway 2 through the landing entrance / exit 4.
  • the video processing unit 22 outputs the incoming/outgoing information representing the detection result to the counting unit 23.
  • the entry / exit information includes, for example, the number of maintenance personnel 16 whose movements exiting the hoistway 2 have been detected.
  • the counting unit 23 acquires the detected entry/exit information from the video processing unit 22.
  • the counting unit 23 subtracts the number of maintenance personnel 16 whose movements from the hoistway 2 are detected from the number of memorized maintenance personnel 16.
  • the suppression unit 18 acquires the number of maintenance personnel 16 stored in the counting unit 23. The suppression unit 18 determines whether the acquired number of people is zero. When the acquired number of people is 0, the suppression unit 18 determines that the maintenance staff 16 is not performing maintenance work. The suppression unit 18 does not output a suppression signal to the control panel 13 when it is determined that maintenance work has not been performed.
  • the maintenance worker 16 turns off the lighting device 20.
  • the maintenance staff 16 performs an operation of switching the operation mode of the elevator 1 to the normal operation mode.
  • the switching unit 15 of the control panel 13 switches to the normal operation mode by the operation of the maintenance staff 16.
  • FIG. 3 is a flowchart showing an example of the operation of the control system according to the second embodiment.
  • step S1 the image sensor 21 captures an image of the inside of the hoistway 2. Then, the operation of the control system 12 proceeds to step S2.
  • step S2 the image processing unit 22 detects the entry and exit of the maintenance staff 16 into the hoistway 2 by performing image processing on the captured image. After that, the video processing unit 22 determines whether the entry / exit of the maintenance staff 16 is detected. If the determination result is Yes, the operation of the control system 12 proceeds to step S3. If the determination result is No, the operation of the control system 12 proceeds to step S4.
  • step S3 the counting unit 23 adds or subtracts the number of maintenance personnel 16 whose entry / exit is detected to the number of memorized maintenance personnel 16. After that, the operation of the control system 12 proceeds to step S4.
  • step S4 the suppression unit 18 determines whether the number of maintenance personnel 16 stored in the counting unit 23 is zero. If the determination result is Yes, the operation of the control system 12 proceeds to step S1. If the determination result is No, the operation of the control system 12 proceeds to step S5.
  • step S5 the suppression unit 18 outputs a suppression signal to the switching unit 15. After that, the operation of the control system 12 proceeds to step S1.
  • the control system 12 includes the switching unit 15, the video sensor 21, the video processing unit 22, the counting unit 23, and the suppressing unit 18.
  • the switching unit 15 switches the operation mode of the elevator 1.
  • the elevator 1 includes an automatic operation mode as an operation mode.
  • the image sensor 21 captures an image inside the hoistway 2 of the elevator 1.
  • the image processing unit 22 detects whether the maintenance worker 16 enters or leaves the hoistway 2 based on the image captured by the image sensor 21.
  • the counting unit 23 counts the number of maintenance personnel 16 performing maintenance work on the hoistway 2 based on the entry / exit information detected by the video processing unit 22.
  • the suppression unit 18 outputs a suppression signal to the switching unit 15 based on the number of people counted by the counting unit 23.
  • the suppression signal is a signal that suppresses switching to the automatic operation mode.
  • the maintenance staff 16 goes in and out of the hoistway 2 at the start and end of the work regardless of the content of the work.
  • the entrance and exit of the maintenance staff 16 to the hoistway 2 is detected by the image sensor 21 and the image processing unit 22.
  • the suppression unit 18 outputs the suppression signal to the switching unit 15 based on the number of people counted by the counting unit 23.
  • the control system 12 does not automatically operate the elevator 1 when maintenance work is being performed on the hoistway 2.
  • the maintenance staff 16 enters and exits the hoistway 2 from outside the hoistway 2.
  • the illuminance outside the hoistway 2 is often higher than the illuminance inside the hoistway 2.
  • the control system 12 can detect the entry and exit of the maintenance staff 16. Further, inside the hoistway 2, there is a possibility that other moving objects such as small animals such as the maintenance personnel 16 may enter. Here, small animals do not enter or leave the entrance or exit of the hoistway 2 at the start or end of maintenance work. Therefore, even when other moving objects of the maintenance staff 16 are inside the hoistway 2, an error in counting the number of maintenance staff 16 performing maintenance work is suppressed.
  • the image sensor 21 is provided above the entrance of the hoistway 2.
  • the image sensor 21 takes an image of the maintenance personnel 16 who goes in and out of the hoistway 2 from above. Therefore, even when a plurality of maintenance personnel 16 enter and exit at the same time, it is possible to prevent any one of the plurality of maintenance personnel 16 from being hidden from the image sensor 21 by the other maintenance personnel 16.
  • control system 12 may include an illuminance sensor 17.
  • the illuminance sensor 17 is provided in the hoistway 2 of the elevator 1.
  • the suppression unit 18 outputs a suppression signal to the switching unit 15 based on the illuminance measured by the illuminance sensor 17.
  • the illuminance sensor 17 may be, for example, a camera.
  • the control system 12 may include a camera that also serves as the illuminance sensor 17 and the image sensor 21.
  • the control system 12 may switch either the illuminance sensor 17 or the video sensor 21.
  • the suppression unit 18 when the illuminance of the hoistway 2 is high even if the lighting device 20 is not turned on, the suppression unit 18 outputs a suppression signal based on the information of the hoistway 2 acquired by the video sensor 21. May be good.
  • the suppression unit 18 may output the suppression signal based on the information of the hoistway 2 acquired by the illuminance sensor 17. In this way, the suppression unit 18 may switch the determination method based on a situation such as the illuminance of the hoistway 2 when the lighting device 20 is not lit. This suppresses erroneous detection of whether maintenance work is in progress.
  • FIG. 4 is a diagram showing a hardware configuration of a main part of the control system according to the second embodiment.
  • Each function of the control system 12 can be realized by a processing circuit.
  • the processing circuit includes at least one processor 12b and at least one memory 12c.
  • the processing circuit may include at least one dedicated hardware 12a with or as a substitute for the processor 12b and the memory 12c.
  • each function of the control system 12 is realized by software, firmware, or a combination of software and firmware. At least one of the software and firmware is written as a program. The program is stored in the memory 12c. The processor 12b realizes each function of the control system 12 by reading and executing the program stored in the memory 12c.
  • the processor 12b is also referred to as a CPU (Central Processing Unit), a processing device, an arithmetic unit, a microprocessor, a microcomputer, and a DSP.
  • the memory 12c is composed of a nonvolatile or volatile semiconductor memory such as a RAM, a ROM, a flash memory, an EPROM, an EEPROM, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, a DVD, or the like.
  • the processing circuit includes the dedicated hardware 12a
  • the processing circuit is realized by, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof.
  • Each function of the control system 12 can be realized by a processing circuit. Alternatively, each function of the control system 12 can be collectively realized by a processing circuit. Part of each function of the control system 12 may be realized by dedicated hardware 12a, and the other part may be realized by software or firmware. Thus, the processing circuit implements each function of the control system 12 by the hardware 12a, software, firmware, or a combination thereof.
  • control system according to the present invention can be applied to an elevator.

Abstract

The purpose of the present invention is to provide an elevator control system to prevent automatic operation during maintenance work in an elevator shaft. A control system (12) comprises a switch unit (15), a sensor, and a control unit (18). The switch unit (15) switches the operation mode of an elevator (1). The elevator (1) operation modes include an automatic operation mode. The sensor acquires elevator shaft (2) information from light inside the elevator shaft (2). The control unit (18) outputs, to the switch unit (15), a control signal to prevent switching to the automatic operation mode on the basis of the elevator shaft (2) information acquired by the sensor.

Description

昇降路で保守作業が行われているときに自動運転させないエレベーターの制御システムElevator control system that does not automatically operate when maintenance work is being performed on the hoistway
　本発明は、エレベーターの制御システムに関する。 The present invention relates to an elevator control system.
　特許文献１は、エレベーターの例を開示する。当該エレベーターの診断運転指令装置は、制御装置にエレベーターの自動診断運転を行わせる。制御装置と診断運転指令装置との接続は、保守運転スイッチが投入されたときに遮断される。 Patent Document 1 discloses an example of an elevator. The diagnostic operation command device for the elevator causes the control device to perform automatic diagnostic operation of the elevator. The connection between the control device and the diagnostic operation command device is cut off when the maintenance operation switch is turned on.
日本特開平５－１６２９４１号公報Japanese Patent Application Laid-Open No. 5-162941
　特許文献１の制御装置の動作は、保守員による保守運転スイッチの操作に基づく。しかしながら、保守員の操作ミスなどにより、保守作業中に保守運転スイッチが開放される可能性がある。このとき、保守員は、保守運転スイッチが投入されていないことに気づかないまま保守作業を継続してしまう可能性がある。 The operation of the control device of Patent Document 1 is based on the operation of the maintenance operation switch by the maintenance personnel. However, there is a possibility that the maintenance operation switch may be opened during the maintenance work due to an operation error of the maintenance personnel. At this time, the maintenance personnel may continue the maintenance work without noticing that the maintenance operation switch is not turned on.
　本発明は、このような課題を解決するためになされた。本発明の目的は、昇降路で保守作業が行われているときに自動運転させないエレベーターの制御システムを提供することである。 The present invention has been made to solve such a problem. An object of the present invention is to provide an elevator control system that does not automatically operate when maintenance work is being performed on a hoistway.
　本発明に係るエレベーターの制御システムは、自動運転モードを運転モードに含むエレベーターの運転モードを切り替える切替え部と、エレベーターの昇降路に設けられる照度センサーと、照度センサーに測定される照度に基づいて、自動運転モードへの切替えを抑制する抑制信号を切替え部に出力する抑制部と、を備える。 The elevator control system according to the present invention, a switching unit that switches the operation mode of the elevator including the automatic operation mode in the operation mode, the illuminance sensor provided in the elevator hoistway, based on the illuminance measured by the illuminance sensor, A suppression unit that outputs a suppression signal that suppresses switching to the automatic operation mode to the switching unit.
　本発明に係るエレベーターの制御システムは、自動運転モードを運転モードに含むエレベーターの運転モードを切り替える切替え部と、エレベーターの昇降路の内部の映像を撮影する映像センサーと、映像センサーに撮影される映像に基づいて昇降路への保守員の出入りを検出する映像処理部と、映像処理部に検出される出入りの情報に基づいて昇降路において保守作業を行っている保守員の人数を計数する計数部と、計数部に計数される人数に基づいて、自動運転モードへの切替えを抑制する抑制信号を切替え部に出力する抑制部と、を備える。 An elevator control system according to the present invention includes a switching unit that switches an operation mode of an elevator including an automatic operation mode as an operation mode, an image sensor that captures an image of an interior of an elevator hoistway, and an image captured by the image sensor. A video processing unit that detects the entrance and exit of maintenance personnel to and from the hoistway, and a counting unit that counts the number of maintenance personnel who are performing maintenance work on the hoistway based on the information of the entrance and exit detected by the video processing unit. And a suppression unit that outputs a suppression signal that suppresses switching to the automatic operation mode to the switching unit based on the number of people counted by the counting unit.
　本発明によれば、制御システムは、切替え部と、抑制部と、を備える。切替え部は、エレベーターの運転モードを切り替える。エレベーターは、自動運転モードを運転モードに含む。抑制部は、センサーが取得する昇降路の情報に基づいて、自動運転モードへの切替えを抑制する抑制信号を切替え部に出力する。これにより、制御システムは、昇降路で保守作業が行われているときにエレベーターの自動運転をさせない。 According to the present invention, the control system includes a switching unit and a suppressing unit. The switching unit switches the operation mode of the elevator. The elevator includes an automatic operation mode as an operation mode. The suppression unit outputs, to the switching unit, a suppression signal that suppresses switching to the automatic operation mode based on the hoistway information acquired by the sensor. As a result, the control system does not allow the elevator to operate automatically when maintenance work is being performed on the hoistway.
実施の形態１に係る制御システムの構成図である。It is a block diagram of a control system according to the first embodiment. 実施の形態２に係る制御システムの構成図である。It is a block diagram of the control system which concerns on Embodiment 2. FIG. 実施の形態２に係る制御システムの動作の例を示すフローチャートである。7 is a flowchart showing an example of the operation of the control system according to the second embodiment. 実施の形態２に係る制御システムの主要部のハードウェア構成を示す図である。FIG. 6 is a diagram showing a hardware configuration of a main part of the control system according to the second embodiment.
　本発明を実施するための形態について添付の図面を参照しながら説明する。各図において、同一または相当する部分には同一の符号を付して、重複する説明は適宜に簡略化または省略する。 A mode for carrying out the present invention will be described with reference to the accompanying drawings. In each drawing, the same or corresponding parts are designated by the same reference numerals, and the overlapping description is appropriately simplified or omitted.
　実施の形態１．
　図１は、実施の形態１に係る制御システムの構成図である。 Embodiment 1.
FIG. 1 is a configuration diagram of a control system according to the first embodiment.
　図１において、エレベーター１は、建築物に設けられる。建築物は、複数の階床を有する。エレベーター１において、昇降路２は、建築物の複数の階床の各々を貫く。エレベーター１において、複数の乗場３の各々は、建築物の複数の階床の各々に設けられる。複数の乗場３の各々において、乗場出入口４が設けられる。乗場出入口４は、昇降路２に通じる開口である。乗場出入口４は、昇降路２の出入口の例である。エレベーター１において、ピット５は、昇降路２の下端に設けられる。 In FIG. 1, the elevator 1 is provided in a building. The building has multiple floors. In the elevator 1, the hoistway 2 penetrates each of a plurality of floors of a building. In the elevator 1, each of the plurality of landings 3 is provided on each of the plurality of floors of the building. A hall entrance/exit 4 is provided in each of the plurality of halls 3. The landing doorway 4 is an opening leading to the hoistway 2. The entrance/exit 4 is an example of an entrance/exit of the hoistway 2. In the elevator 1, the pit 5 is provided at the lower end of the hoistway 2.
　エレベーター１は、巻上機６と、主ロープ７と、かご８と、釣合い錘９と、を備える。巻上機６は、例えば昇降路２の上部に設けられる。巻上機６は、駆動力を発生させる装置である。主ロープ７は、巻上機６に巻きかけられる。主ロープ７は、巻上機６が発生させる駆動力によって移動する機器である。主ロープ７の一端は、例えばかご８に設けられる。主ロープ７の他端は、例えば釣合い錘９に設けられる。かご８は、昇降路２に設けられる。かご８は、主ロープ７の移動に追従して昇降路２の内部を鉛直方向に走行することで、建築物の複数の階床の間で利用者などを輸送する装置である。かご８は、かご扉１０を備える。かご扉１０は、利用者などがかご８に乗降しうるようにかご８が複数の階のいずれかに停止しているときに開閉する装置である。釣合い錘９は、昇降路２に設けられる。釣合い錘９は、主ロープ７を通じて巻上機６の一側にかかるかご８の重量による負荷と、主ロープ７を通じて巻上機６の他側にかかる負荷と、の釣り合いを取る装置である。 The elevator 1 includes a hoist 6, a main rope 7, a car 8, and a counterweight 9. The hoisting machine 6 is provided, for example, in the upper part of the hoistway 2. The hoisting machine 6 is a device that generates a driving force. The main rope 7 is wound around the hoisting machine 6. The main rope 7 is a device that moves by a driving force generated by the hoisting machine 6. One end of the main rope 7 is provided in the car 8, for example. The other end of the main rope 7 is provided on, for example, a counterweight 9. The car 8 is provided in the hoistway 2. The car 8 is a device that transports a user or the like between a plurality of floors of a building by following the movement of the main rope 7 and traveling vertically inside the hoistway 2. The car 8 includes a car door 10. The car door 10 is a device that opens and closes when the car 8 is stopped on any of a plurality of floors so that a user or the like can get on and off the car 8. The counterweight 9 is provided in the hoistway 2. The counterweight 9 is a device for balancing the load due to the weight of the car 8 applied to one side of the hoisting machine 6 through the main rope 7 and the load applied to the other side of the hoisting machine 6 through the main rope 7.
　エレベーター１は、複数の乗場扉１１を備える。複数の乗場扉１１の各々は、複数の乗場３の各々の乗場出入口４に設けられる。複数の乗場扉１１の各々は、当該乗場扉１１が設けられる階床にかご８が停止しているときにかご扉１０に連動して開閉する装置である。 The elevator 1 has a plurality of landing doors 11. Each of the plurality of hall doors 11 is provided at each hall entrance/exit 4 of the plurality of halls 3. Each of the plurality of landing doors 11 is a device that opens and closes in conjunction with the car door 10 when the car 8 is stopped on the floor on which the landing door 11 is provided.
　エレベーター１は、制御システム１２を備える。制御システム１２は、制御盤１３と、自動運転抑制装置１４と、を備える。 Elevator 1 is equipped with a control system 12. The control system 12 includes a control panel 13 and an automatic operation suppression device 14.
　制御盤１３は、エレベーター１の動作を制御する。エレベーター１の動作は、例えばかご８の走行を含む。制御盤１３は、切替え部１５を備える。切替え部１５は、エレベーター１の運転モードを切り替える部分である。エレベーター１の運転モードは、自動運転モードおよび手動運転モードを含む。自動運転モードにおいて、かご８の走行および停止は、保守員１６の操作を要することなく行われる。自動運転モードは、例えば通常時の運転モード、または自動診断時の運転モードなどを含む。手動運転モードにおいて、かご８の走行および停止は、保守員１６の操作によって行われる。手動運転モードは、例えば保守作業時の運転モードなどを含む。運転モードは、例えば保守員１６による図示されない切替えスイッチの操作によって切り替えられてもよい。 The control panel 13 controls the operation of the elevator 1. The operation of the elevator 1 includes, for example, traveling of the car 8. The control panel 13 includes a switching unit 15. The switching unit 15 is a unit that switches the operation mode of the elevator 1. The operation mode of the elevator 1 includes an automatic operation mode and a manual operation mode. In the automatic operation mode, the car 8 is run and stopped without the operation of the maintenance staff 16. The automatic operation mode includes, for example, a normal operation mode or an automatic diagnosis operation mode. In the manual operation mode, traveling and stopping of the car 8 are performed by the operation of the maintenance staff 16. The manual operation mode includes, for example, an operation mode during maintenance work. The operation mode may be switched by, for example, the operation of a changeover switch (not shown) by the maintenance staff 16.
　自動運転抑制装置１４は、照度センサー１７と、抑制部１８と、を備える。 The automatic driving suppression device 14 includes an illuminance sensor 17 and a suppression unit 18.
　照度センサー１７は、昇降路２に設けられる。照度センサー１７は、照度を測定する装置である。照度センサー１７は、照度を測定する測定面を有する。照度センサー１７の測定面は、昇降路２の内部の保守作業が行われる場所に向けられる。照度センサー１７は、例えば昇降路２の内壁に設けられる。この例において、照度センサー１７の測定面は、ピット５に向けられる。 Illuminance sensor 17 is provided in hoistway 2. The illuminance sensor 17 is a device for measuring illuminance. The illuminance sensor 17 has a measurement surface for measuring illuminance. The measurement surface of the illuminance sensor 17 is directed to a place where maintenance work is performed inside the hoistway 2. The illuminance sensor 17 is provided on the inner wall of the hoistway 2, for example. In this example, the measurement surface of the illuminance sensor 17 faces the pit 5.
　抑制部１８は、測定された照度の情報を取得しうるように、照度センサー１７に接続される。抑制部１８は、例えばマイクロコンピューターなどの演算装置である。抑制部１８は、照度センサー１７に測定される照度に基づいて抑制信号を切替え部１５に出力しうるように、制御盤１３に接続される。抑制信号は、自動運転モードへの切替えを抑制する信号である。 The suppression unit 18 is connected to the illuminance sensor 17 so as to obtain information on the measured illuminance. The suppression unit 18 is an arithmetic unit such as a microcomputer. The suppression unit 18 is connected to the control panel 13 so that the suppression signal can be output to the switching unit 15 based on the illuminance measured by the illuminance sensor 17. The suppression signal is a signal that suppresses switching to the automatic operation mode.
　続いて、実施の形態１に係る制御システム１２の機能を説明する。 Next, the function of the control system 12 according to the first embodiment will be described.
　この例において、保守員１６は、昇降路２の内部のピット５において保守作業を行う。保守作業は、例えば保守対象装置１９の点検である。保守対象装置１９は、昇降路２における保守作業の対象となる装置である。保守対象装置１９は、昇降路２に設けられる。保守対象装置１９は、例えば地震計、コンペンセーションロープまたは調速器ロープの張り車、もしくは緩衝器などである。 In this example, the maintenance staff 16 performs maintenance work in the pit 5 inside the hoistway 2. The maintenance work is, for example, an inspection of the maintenance target device 19. The maintenance target device 19 is a device that is a target of maintenance work in the hoistway 2. The maintenance target device 19 is provided in the hoistway 2. The maintenance target device 19 is, for example, a seismograph, a tensioning wheel of a compensation rope or a governor rope, or a shock absorber.
　保守員１６は、エレベーター１の運転モードを点検時の運転モードに切り替える。保守員１６は、最下階の乗場３の乗場扉１１を開放する。保守員１６は、例えば可搬式の照明装置２０を点灯する。この例において、照明装置２０は、エレベーター１に接続されていない。保守員１６は、照明装置２０によって昇降路２の内部を照らす。保守員１６は、乗場出入口４からピット５に降りる。保守員１６は、照明装置２０によって、保守作業に必要な照度を確保する。 The maintenance staff 16 switches the operation mode of the elevator 1 to the operation mode at the time of inspection. The maintenance staff 16 opens the hall door 11 of the hall 3 on the lowest floor. The maintenance staff 16 turns on the portable lighting device 20, for example. In this example, the lighting device 20 is not connected to the elevator 1. The maintenance staff 16 illuminates the inside of the hoistway 2 with the lighting device 20. The maintenance staff 16 gets off from the entrance/exit 4 to the pit 5. The maintenance staff 16 secures the illuminance required for the maintenance work by the lighting device 20.
　自動運転抑制装置１４の照度センサー１７は、照度を測定する。 The illuminance sensor 17 of the automatic driving restraint device 14 measures the illuminance.
　抑制部１８は、測定された照度の値を照度センサー１７から取得する。抑制部１８は、取得した照度の値を予め設定された閾値と比較する。当該閾値は、例えば保守作業に必要な照度の下限値として設定される値である。抑制部１８は、取得した照度の値が当該閾値を超えている場合に、保守員１６による保守作業が行われていると判定する。抑制部１８は、保守作業が行われていると判定するときに、抑制信号を制御盤１３の切替え部１５に出力する。 The suppression unit 18 acquires the measured illuminance value from the illuminance sensor 17. The suppression unit 18 compares the acquired illuminance value with a preset threshold value. The threshold value is, for example, a value set as a lower limit value of the illuminance required for maintenance work. The suppression unit 18 determines that the maintenance work is being performed by the maintenance staff 16 when the acquired illuminance value exceeds the threshold value. When the suppression unit 18 determines that maintenance work is being performed, the suppression unit 18 outputs a suppression signal to the switching unit 15 of the control panel 13.
　制御盤１３は、抑制信号を受信する。制御盤１３の切替え部１５は、抑制信号を受信しているときに、自動運転モードへの運転モードの切替えを行わない。例えば、この間に保守員１６による通常時の運転モードへの切替えの操作があった場合に、切替え部１５は、当該操作によって自動運転モードへの切替えを行わない。あるいは、この間に発生する地震などによって自動診断時の運転モードへの切替えの制御信号を制御盤１３が受信した場合に、切替え部１５は、当該制御信号によって自動運転モードへの切替えを行わない。 The control panel 13 receives the suppression signal. The switching unit 15 of the control panel 13 does not switch the operation mode to the automatic operation mode while receiving the suppression signal. For example, if the maintenance worker 16 performs an operation of switching to the normal operation mode during this period, the switching unit 15 does not switch to the automatic operation mode by the operation. Alternatively, when the control panel 13 receives a control signal for switching to the operation mode at the time of automatic diagnosis due to an earthquake that occurs during this period, the switching unit 15 does not switch to the automatic operation mode by the control signal.
　保守員１６は、ピット５において保守作業を行う。保守員１６は、保守作業の後に、乗場出入口４から乗場３に戻る。保守員１６は、照明装置２０を消灯する。 The maintenance staff 16 performs maintenance work in the pit 5. The maintenance staff 16 returns to the hall 3 from the hall entrance/exit 4 after the maintenance work. The maintenance worker 16 turns off the lighting device 20.
　照度センサー１７は、照度を測定する。 The illuminance sensor 17 measures the illuminance.
　抑制部１８は、測定された照度の値を照度センサー１７から取得する。抑制部１８は、取得した照度の値を予め設定された閾値と比較する。抑制部１８は、取得した照度の値が当該閾値を超えていない場合に、保守員１６による保守作業が行われていないと判定する。抑制部１８は、保守作業が行われていないと判定するときに、抑制信号を制御盤１３に出力しない。また、抑制部１８は、取得した照度の値が当該閾値を超えていない状態が所定時間継続した場合に、保守員１６による保守作業が行われていないと判定してもよい。 The suppression unit 18 acquires the measured illuminance value from the illuminance sensor 17. The suppression unit 18 compares the acquired illuminance value with a preset threshold value. When the acquired illuminance value does not exceed the threshold value, the suppression unit 18 determines that the maintenance worker 16 is not performing maintenance work. The suppression unit 18 does not output a suppression signal to the control panel 13 when it is determined that maintenance work has not been performed. Further, the suppression unit 18 may determine that the maintenance work by the maintenance staff 16 has not been performed when the acquired illuminance value does not exceed the threshold value for a predetermined time.
　保守員１６は、エレベーター１の運転モードを通常時の運転モードに切り替える操作を行う。 The maintenance staff 16 performs an operation to switch the operation mode of the elevator 1 to the normal operation mode.
　制御盤１３の切替え部１５は、保守員１６の操作によって通常時の運転モードへの切替えを行う。 The switching unit 15 of the control panel 13 switches to the normal operation mode by the operation of the maintenance staff 16.
　以上に説明したように、実施の形態１に係る制御システム１２は、切替え部１５と、照度センサー１７と、抑制部１８と、を備える。切替え部１５は、エレベーター１の運転モードを切り替える。エレベーター１は、自動運転モードを運転モードに含む。照度センサー１７は、エレベーター１の昇降路２に設けられる。抑制部１８は、照度センサー１７に測定される照度に基づいて、抑制信号を切替え部１５に出力する。抑制信号は、自動運転モードへの切替えを抑制する信号である。 As described above, the control system 12 according to the first embodiment includes a switching unit 15, an illuminance sensor 17, and a suppressing unit 18. The switching unit 15 switches the operation mode of the elevator 1. The elevator 1 includes an automatic operation mode as an operation mode. The illuminance sensor 17 is provided in the hoistway 2 of the elevator 1. The suppression unit 18 outputs a suppression signal to the switching unit 15 based on the illuminance measured by the illuminance sensor 17. The suppression signal is a signal that suppresses switching to the automatic operation mode.
　保守作業の作業性は、照度に影響される。このため、昇降路２の照度は、保守作業が行われている間、保守作業に必要な照度が確保される。抑制部１８による切替え部１５への抑制信号の出力は、昇降路２の照度に基づいて行われる。これにより、制御システム１２は、昇降路２で保守作業が行われているときにエレベーター１の自動運転をさせない。制御システム１２が照度センサー１７を備えるので、保守員１６がエレベーター１に接続されていない照明装置２０を用いて保守作業を行う場合においても、制御システム１２は、保守作業中のエレベーター１の自動運転を抑制できる。 The workability of maintenance work is affected by the illuminance. For this reason, the illuminance of the hoistway 2 is ensured while the maintenance work is being performed. The suppression unit 18 outputs the suppression signal to the switching unit 15 based on the illuminance of the hoistway 2. As a result, the control system 12 does not automatically operate the elevator 1 when maintenance work is being performed on the hoistway 2. Since the control system 12 includes the illuminance sensor 17, even when the maintenance staff 16 performs maintenance work using the lighting device 20 that is not connected to the elevator 1, the control system 12 automatically operates the elevator 1 during maintenance work. Can be suppressed.
　また、抑制部１８は、照度センサー１７に測定される照度が予め設定された閾値を超えているときに抑制信号を出力する。 The suppression unit 18 also outputs a suppression signal when the illuminance measured by the illuminance sensor 17 exceeds a preset threshold value.
　これにより、保守作業に必要な閾値より高い照度が昇降路２において確保されているときに、エレベーター１の運転モードの自動運転モードへの切替えが抑制される。また、抑制部１８は、照度センサー１７に測定される照度の現在値と閾値との大小比較によって抑制信号の出力の有無を切り替える。このため、抑制部１８を簡易に構成できる。また、抑制部１８が取得した照度の値が当該閾値を超えていない状態が所定時間継続した場合に、保守員１６による保守作業は、行われていないと判定してもよい。このとき、例えば保守作業中において一時的に照明が消えた場合にも、抑制部１８は、抑制信号の出力を即時に停止しない。ここで、一時的に照明が消えた場合は、例えば保守員１６が照明装置２０による照明を誤操作により消してしまった場合、およびランプ切れなどにより照明装置２０による照明が消えてしまった場合などを含む。これにより、保守作業における安全性が向上する。 As a result, when the illuminance higher than the threshold value required for maintenance work is secured in the hoistway 2, the switching of the operation mode of the elevator 1 to the automatic operation mode is suppressed. Further, the suppression unit 18 switches whether to output a suppression signal by comparing the current value of the illuminance measured by the illuminance sensor 17 with the threshold value. Therefore, the suppression unit 18 can be easily configured. Further, when the state in which the value of the illuminance acquired by the suppression unit 18 does not exceed the threshold value continues for a predetermined time, it may be determined that the maintenance work by the maintenance staff 16 has not been performed. At this time, for example, even when the illumination is temporarily turned off during maintenance work, the suppression unit 18 does not immediately stop outputting the suppression signal. Here, when the illumination is temporarily turned off, for example, when the maintenance staff 16 turns off the illumination by the illumination device 20 by an erroneous operation, or when the illumination by the illumination device 20 is turned off due to a lamp burnout or the like. Including. This improves safety in maintenance work.
　なお、照度センサー１７は、昇降路２の出入口に隣接して設けられてもよい。照度センサー１７は、例えば出入口の下方に設けられる。 The illuminance sensor 17 may be provided adjacent to the entrance of the hoistway 2. The illuminance sensor 17 is provided, for example, below the entrance.
　保守員１６は、昇降路２での保守作業において、作業の内容に関わらず作業の開始時と終了時とに出入口を通行する。このとき、出入口の通行に必要な照度が確保されている場合に、エレベーター１の運転モードの自動運転モードへの切替えが抑制される。このため、制御システム１２は、作業の内容に関わらず、保守作業中のエレベーター１の自動運転を抑制できる。 The maintenance staff 16 passes through the doorway at the start and end of the work regardless of the content of the work in the maintenance work on the hoistway 2. At this time, when the illuminance required for the passage of the entrance / exit is secured, the switching of the operation mode of the elevator 1 to the automatic operation mode is suppressed. Therefore, the control system 12 can suppress the automatic operation of the elevator 1 during the maintenance work regardless of the content of the work.
　また、照度センサー１７は、エレベーター１のかご８の下部に設けられてもよい。あるいは、照度センサー１７は、エレベーター１の釣合い錘９の下部に設けられてもよい。照度センサー１７は、エレベーター１のかご８および釣合い錘９の両方の下部に設けられてもよい。 Also, the illuminance sensor 17 may be provided below the car 8 of the elevator 1. Alternatively, the illuminance sensor 17 may be provided below the counterweight 9 of the elevator 1. The illuminance sensor 17 may be provided below both the car 8 and the counterweight 9 of the elevator 1.
　制御システム１２において、ピット５に別途機器を設ける必要がない。このため、ピット５の面積が制御システム１２の機器に占有されない。これにより、制御システム１２の導入によって保守作業の作業性が損なわれない。また、かご８および釣合い錘９は、ピット５において作業中の保守員１６の作業範囲より上方に配置される。このため、照度センサー１７は、保守作業を行っている保守員１６の手などによって隠されにくい。 In the control system 12, there is no need to install a separate device in the pit 5. Therefore, the area of the pit 5 is not occupied by the device of the control system 12. As a result, the introduction of the control system 12 does not impair the workability of maintenance work. Further, the car 8 and the counterweight 9 are arranged above the working range of the maintenance staff 16 who is working in the pit 5. Therefore, the illuminance sensor 17 is not easily hidden by the hands of the maintenance staff 16 who is performing maintenance work.
　また、照度センサー１７は、エレベーター１のかご８の上部に設けられてもよい。また、照度センサー１７は、昇降路の天井部に設けられてもよい。 Also, the illuminance sensor 17 may be provided above the car 8 of the elevator 1. The illuminance sensor 17 may be provided on the ceiling of the hoistway.
　保守員１６は、例えば昇降路２の内部のかご８の上において保守作業を行ってもよい。保守対象装置１９は、例えば昇降路２の内部のかご８の上、昇降路２の天井部または昇降路２の内壁などに設けられる。保守対象装置１９は、例えば制御盤１３、巻上機６、または調速機、もしくはかご８の上の機器などである。この例において、照度センサー１７の測定面は、例えばかご８の上の空間に向けられる。これにより、制御システム１２は、かご８の上で保守作業が行われているときにエレベーター１の自動運転をさせない。 The maintenance worker 16 may perform maintenance work on, for example, a car 8 inside the hoistway 2. The maintenance target device 19 is provided, for example, on the car 8 inside the hoistway 2, the ceiling of the hoistway 2, or the inner wall of the hoistway 2. The maintenance target device 19 is, for example, the control panel 13, the hoisting machine 6, the speed governor, or a device on the car 8. In this example, the measurement surface of the illuminance sensor 17 is directed to the space above the car 8, for example. As a result, the control system 12 does not automatically operate the elevator 1 when maintenance work is being performed on the car 8.
　また、照度センサー１７は、昇降路２の内部の保守対象装置１９に設けられてもよい。 Further, the illuminance sensor 17 may be provided in the maintenance target device 19 inside the hoistway 2.
　このとき、保守対象装置１９の保守作業に必要な照度が確保されている場合に、エレベーター１の運転モードの自動運転モードへの切替えが抑制される。このため、制御システム１２は、より確実に保守作業中のエレベーター１の自動運転を抑制できる。 At this time, when the illuminance required for the maintenance work of the maintenance target device 19 is secured, the switching of the operation mode of the elevator 1 to the automatic operation mode is suppressed. Therefore, the control system 12 can more reliably suppress the automatic operation of the elevator 1 during the maintenance work.
　また、エレベーター１は、例えばシースルーエレベーターであってもよい。シースルーエレベーターにおいて、昇降路２の外部からの光が差し込む。例えば外部からの光の時刻による変化によって、昇降路２における照度は変化する。 Further, the elevator 1 may be, for example, a see-through elevator. In the see-through elevator, light from the outside of the hoistway 2 enters. For example, the illuminance in the hoistway 2 changes due to the change of light from the outside with time.
　ここで、抑制部１８は、照度センサー１７に測定される照度の現在値と閾値との大小比較の他の方法によって抑制信号の出力の有無を切り替えてもよい。例えば、抑制部１８は、照度センサー１７に測定される照度の正の変化量が予め設定された閾値を超えるときに抑制信号の出力を開始する。抑制部１８は、照度センサー１７に測定される照度の負の変化量の絶対値が予め設定された閾値を超えるときに抑制信号の出力を終了する。 Here, the suppression unit 18 may switch the output of the suppression signal by another method of comparing the magnitude of the current value of the illuminance measured by the illuminance sensor 17 with the threshold value. For example, the suppression unit 18 starts outputting a suppression signal when the amount of positive change in illuminance measured by the illuminance sensor 17 exceeds a preset threshold value. The suppression unit 18 ends the output of the suppression signal when the absolute value of the amount of negative change in illuminance measured by the illuminance sensor 17 exceeds a preset threshold value.
　当該閾値は、例えば照明装置２０の点灯によって高くなる照度の変化量の値に設定される。これにより、外部からの光が取り入れられることによって照度が経時変化する昇降路２においても、保守作業に用いられる照明装置２０の点灯が検知される。これにより、制御システム１２は、保守作業中のエレベーター１の自動運転を抑制できる。 The threshold value is set to, for example, the value of the amount of change in illuminance that is increased by lighting the lighting device 20. As a result, the lighting of the lighting device 20 used for maintenance work is detected even in the hoistway 2 where the illuminance changes with time due to the intake of light from the outside. As a result, the control system 12 can suppress the automatic operation of the elevator 1 during maintenance work.
　また、自動運転抑制装置１４の一部または全部は、例えば制御盤１３の一部であってもよい。切替え部１５は、制御盤１３の外部の装置に設けられてもよい。 Further, part or all of the automatic driving suppression device 14 may be part of the control panel 13, for example. The switching unit 15 may be provided in a device outside the control panel 13.
　また、制御システム１２は、複数の照度センサー１７を備えてもよい。このとき、抑制部１８は、複数の照度センサー１７の各々に測定される照度から算出される算出値に基づいて抑制信号を出力してもよい。当該算出値は、例えば複数の照度センサー１７の各々に測定される照度の平均値、または複数の照度センサー１７の各々に測定される照度の最大値などである。また、本実施の形態において照明装置２０が可搬式の照明装置２０である場合を例に説明したが、照明装置２０は、保守作業のため予めピット５の内やかご８の外部に常設された点検灯であってもよい。 The control system 12 may also include a plurality of illuminance sensors 17. At this time, the suppression unit 18 may output the suppression signal based on the calculated value calculated from the illuminance measured by each of the plurality of illuminance sensors 17. The calculated value is, for example, an average value of illuminance measured by each of the plurality of illuminance sensors 17, or a maximum value of illuminance measured by each of the plurality of illuminance sensors 17. Further, although a case has been described with the present embodiment as an example where the lighting device 20 is a portable lighting device 20, the lighting device 20 is permanently installed in the pit 5 or outside the car 8 in advance for maintenance work. It may be an inspection light.
　実施の形態２．
　実施の形態２では、実施の形態１で開示された例と相違する点について詳しく説明する。実施の形態２で説明しない特徴については、実施の形態１で開示された例のいずれの特徴が採用されてもよい。 Embodiment 2.
In the second embodiment, points different from the example disclosed in the first embodiment will be described in detail. As for the features not described in the second embodiment, any of the features disclosed in the first embodiment may be adopted.
　図２は、実施の形態２に係る制御システムの構成図である。 2 is a configuration diagram of a control system according to the second embodiment.
　自動運転抑制装置１４は、映像センサー２１と、映像処理部２２と、計数部２３と、抑制部１８と、を備える。 The automatic driving suppression device 14 includes a video sensor 21, a video processing unit 22, a counting unit 23, and a suppression unit 18.
　映像センサー２１は、例えば昇降路２に設けられる。映像センサー２１は、昇降路２の内部の映像を撮影する装置である。映像センサー２１は、例えばカメラである。映像センサー２１は、映像を撮影する撮影面を有する。映像センサー２１の撮影面は、昇降路２の内部の保守作業が行われる場所に向けられる。映像センサー２１は、例えば昇降路２の内壁に設けられる。映像センサー２１は、例えば乗場出入口４の上方に設けられる。この例において、映像センサー２１の撮影面は、ピット５に向けられる。 The image sensor 21 is provided, for example, in the hoistway 2. The image sensor 21 is a device that captures an image inside the hoistway 2. The image sensor 21 is, for example, a camera. The image sensor 21 has a photographing surface for photographing an image. The imaging surface of the image sensor 21 is directed to a place where maintenance work is performed inside the hoistway 2. The image sensor 21 is provided on the inner wall of the hoistway 2, for example. The image sensor 21 is provided above the hall entrance/exit 4, for example. In this example, the shooting surface of the image sensor 21 is directed to the pit 5.
　映像処理部２２は、撮影された映像の情報を取得しうるように、映像センサー２１に接続される。映像処理部２２は、映像センサー２１に撮影される映像を画像処理することによって昇降路２への保守員１６の出入りを検出する装置である。 The video processing unit 22 is connected to the video sensor 21 so as to be able to acquire information on the captured video. The image processing unit 22 is a device that detects the entry and exit of the maintenance staff 16 into the hoistway 2 by performing image processing on the image captured by the image sensor 21.
　計数部２３は、検出された出入りの情報を取得しうるように、映像処理部２２に接続される。計数部２３は、取得した出入りの情報に基づいて昇降路２において保守作業を行っている保守員１６の人数を計数する装置である。計数部２３は、保守員１６の人数を記憶する。保守作業が行われていないときに、計数部２３が記憶している保守員１６の人数は、０である。 The counting unit 23 is connected to the video processing unit 22 so as to be able to acquire information on the detected entrance and exit. The counting unit 23 is a device that counts the number of maintenance personnel 16 performing maintenance work on the hoistway 2 based on the acquired entry / exit information. The counting unit 23 stores the number of maintenance personnel 16. When the maintenance work is not performed, the number of the maintenance personnel 16 stored in the counting unit 23 is zero.
　抑制部１８は、計数された人数の情報を取得しうるように、計数部２３に接続される。抑制部１８は、計数部２３に数えられる人数に基づいて抑制信号を切替え部１５に出力しうるように、制御盤１３に接続される。 The suppression unit 18 is connected to the counting unit 23 so that the information of the counted number of people can be acquired. The suppression unit 18 is connected to the control panel 13 so that the suppression signal can be output to the switching unit 15 based on the number of people counted in the counting unit 23.
　続いて、実施の形態２に係る制御システム１２の機能を説明する。 Next, the function of the control system 12 according to the second embodiment will be described.
　この例において、保守員１６は、昇降路２の内部のピット５において保守作業を行う。 In this example, the maintenance worker 16 performs maintenance work in the pit 5 inside the hoistway 2.
　保守員１６は、エレベーター１の運転モードを点検時の運転モードに切り替える。保守員１６は、最下階の乗場３の乗場扉１１を開放する。保守員１６は、例えば昇降路２に設けられる照明装置２０を点灯する。保守員１６は、照明装置２０によって昇降路２の内部を照らす。保守員１６は、乗場出入口４からピット５に降りる。保守員１６は、照明装置２０によって、保守作業に必要な照度を確保する。 The maintenance staff 16 switches the operation mode of the elevator 1 to the operation mode at the time of inspection. The maintenance staff 16 opens the hall door 11 of the hall 3 on the lowest floor. The maintenance staff 16 turns on the lighting device 20 provided in the hoistway 2, for example. The maintenance staff 16 illuminates the inside of the hoistway 2 with the lighting device 20. The maintenance staff 16 gets off from the entrance/exit 4 to the pit 5. The maintenance staff 16 secures the illuminance required for the maintenance work by the lighting device 20.
　自動運転抑制装置１４の映像センサー２１は、ピット５の映像を撮影する。 The image sensor 21 of the automatic driving suppression device 14 captures the image of the pit 5.
　映像処理部２２は、撮影された映像の情報を映像センサー２１から取得する。映像処理部２２は、取得した映像を画像処理することによって保守員１６の動きを検出する。映像処理部２２は、乗場出入口４を通じて昇降路２に入る保守員１６を検出する。映像処理部２２は、検出結果を表す出入りの情報を計数部２３に出力する。出入りの情報は、例えば昇降路２に入る動きが検出された保守員１６の人数を含む。 The video processing unit 22 acquires information on the captured video from the video sensor 21. The image processing unit 22 detects the movement of the maintenance staff 16 by performing image processing on the acquired image. The image processing unit 22 detects the maintenance personnel 16 who enters the hoistway 2 through the hall entrance/exit 4. The video processing unit 22 outputs the incoming/outgoing information representing the detection result to the counting unit 23. The entry / exit information includes, for example, the number of maintenance personnel 16 who have detected a movement entering the hoistway 2.
　計数部２３は、検出された出入りの情報を映像処理部２２から取得する。計数部２３は、昇降路２に入る動きが検出された保守員１６の人数を、記憶している保守員１６の人数に加算する。 The counting unit 23 acquires the detected entry/exit information from the video processing unit 22. The counting unit 23 adds the number of maintenance personnel 16 whose movement into the hoistway 2 has been detected to the stored number of maintenance personnel 16.
　抑制部１８は、計数部２３が記憶している保守員１６の人数を取得する。抑制部１８は、取得した人数が０であるかを判定する。抑制部１８は、取得した人数が０でない場合に、保守員１６による保守作業が行われていると判定する。抑制部１８は、保守作業が行われていると判定するときに、抑制信号を制御盤１３の切替え部１５に出力する。 The suppression unit 18 acquires the number of maintenance personnel 16 stored in the counting unit 23. The suppression unit 18 determines whether the acquired number of people is zero. When the acquired number of people is not 0, the suppression unit 18 determines that the maintenance worker 16 is performing maintenance work. When the suppression unit 18 determines that maintenance work is being performed, the suppression unit 18 outputs a suppression signal to the switching unit 15 of the control panel 13.
　制御盤１３は、制御信号を受信する。制御盤１３の切替え部１５は、抑制信号を受信しているときに、自動運転モードへの運転モードの切替えを行わない。 The control panel 13 receives the control signal. The switching unit 15 of the control panel 13 does not switch the operation mode to the automatic operation mode while receiving the suppression signal.
　保守員１６は、ピット５において保守作業を行う。保守員１６は、保守作業の後に、乗場出入口４から乗場３に戻る。 The maintenance staff 16 performs maintenance work in the pit 5. The maintenance staff 16 returns to the hall 3 from the hall entrance/exit 4 after the maintenance work.
　映像センサー２１は、ピット５の映像を撮影する。 The image sensor 21 captures an image of the pit 5.
　映像処理部２２は、撮影された映像の情報を映像センサー２１から取得する。映像処理部２２は、取得した映像を画像処理することによって保守員１６の動きを検出する。映像処理部２２は、乗場出入口４を通じて昇降路２から出る保守員１６を検出する。映像処理部２２は、検出結果を表す出入りの情報を計数部２３に出力する。出入りの情報は、例えば昇降路２から出る動きが検出された保守員１６の人数を含む。 The video processing unit 22 acquires information on the captured video from the video sensor 21. The image processing unit 22 detects the movement of the maintenance staff 16 by performing image processing on the acquired image. The video processing unit 22 detects the maintenance staff 16 exiting the hoistway 2 through the landing entrance / exit 4. The video processing unit 22 outputs the incoming/outgoing information representing the detection result to the counting unit 23. The entry / exit information includes, for example, the number of maintenance personnel 16 whose movements exiting the hoistway 2 have been detected.
　計数部２３は、検出された出入りの情報を映像処理部２２から取得する。計数部２３は、昇降路２から出る動きが検出された保守員１６の人数を、記憶している保守員１６の人数から減算する。 The counting unit 23 acquires the detected entry/exit information from the video processing unit 22. The counting unit 23 subtracts the number of maintenance personnel 16 whose movements from the hoistway 2 are detected from the number of memorized maintenance personnel 16.
　抑制部１８は、計数部２３が記憶している保守員１６の人数を取得する。抑制部１８は、取得した人数が０であるかを判定する。抑制部１８は、取得した人数が０である場合に、保守員１６による保守作業が行われていないと判定する。抑制部１８は、保守作業が行われていないと判定するときに、抑制信号を制御盤１３に出力しない。 The suppression unit 18 acquires the number of maintenance personnel 16 stored in the counting unit 23. The suppression unit 18 determines whether the acquired number of people is zero. When the acquired number of people is 0, the suppression unit 18 determines that the maintenance staff 16 is not performing maintenance work. The suppression unit 18 does not output a suppression signal to the control panel 13 when it is determined that maintenance work has not been performed.
　保守員１６は、照明装置２０を消灯する。保守員１６は、エレベーター１の運転モードを通常時の運転モードに切り替える操作を行う。 The maintenance worker 16 turns off the lighting device 20. The maintenance staff 16 performs an operation of switching the operation mode of the elevator 1 to the normal operation mode.
　制御盤１３の切替え部１５は、保守員１６の操作によって通常時の運転モードへの切替えを行う。 The switching unit 15 of the control panel 13 switches to the normal operation mode by the operation of the maintenance staff 16.
　続いて、図３を用いて制御システム１２の動作の例を説明する。
　図３は、実施の形態２に係る制御システムの動作の例を示すフローチャートである。 Subsequently, an example of the operation of the control system 12 will be described with reference to FIG.
FIG. 3 is a flowchart showing an example of the operation of the control system according to the second embodiment.
　ステップＳ１において、映像センサー２１は、昇降路２の内部の映像を撮影する。その後、制御システム１２の動作は、ステップＳ２に進む。 In step S1, the image sensor 21 captures an image of the inside of the hoistway 2. Then, the operation of the control system 12 proceeds to step S2.
　ステップＳ２において、映像処理部２２は、撮影された映像を画像処理することによって、昇降路２への保守員１６の出入りを検出する。その後、映像処理部２２は、保守員１６の出入りが検出されたかを判定する。判定結果がＹｅｓの場合に、制御システム１２の動作は、ステップＳ３に進む。判定結果がＮｏの場合に、制御システム１２の動作は、ステップＳ４に進む。 In step S2, the image processing unit 22 detects the entry and exit of the maintenance staff 16 into the hoistway 2 by performing image processing on the captured image. After that, the video processing unit 22 determines whether the entry / exit of the maintenance staff 16 is detected. If the determination result is Yes, the operation of the control system 12 proceeds to step S3. If the determination result is No, the operation of the control system 12 proceeds to step S4.
　ステップＳ３において、計数部２３は、出入が検出された保守員１６の人数を、記憶している保守員１６の人数に対して加減算する。その後、制御システム１２の動作は、ステップＳ４に進む。 In step S3, the counting unit 23 adds or subtracts the number of maintenance personnel 16 whose entry / exit is detected to the number of memorized maintenance personnel 16. After that, the operation of the control system 12 proceeds to step S4.
　ステップＳ４において、抑制部１８は、計数部２３が記憶している保守員１６の人数が０であるかを判定する。判定結果がＹｅｓの場合に、制御システム１２の動作は、ステップＳ１に進む。判定結果がＮｏの場合に、制御システム１２の動作は、ステップＳ５に進む。 In step S4, the suppression unit 18 determines whether the number of maintenance personnel 16 stored in the counting unit 23 is zero. If the determination result is Yes, the operation of the control system 12 proceeds to step S1. If the determination result is No, the operation of the control system 12 proceeds to step S5.
　ステップＳ５において、抑制部１８は、抑制信号を切替え部１５に出力する。その後、制御システム１２の動作は、ステップＳ１に進む。 In step S5, the suppression unit 18 outputs a suppression signal to the switching unit 15. After that, the operation of the control system 12 proceeds to step S1.
　以上に説明したように、実施の形態２に係る制御システム１２は、切替え部１５と、映像センサー２１と、映像処理部２２と、計数部２３と、抑制部１８と、を備える。切替え部１５は、エレベーター１の運転モードを切り替える。エレベーター１は、自動運転モードを運転モードに含む。映像センサー２１は、エレベーター１の昇降路２の内部の映像を撮影する。映像処理部２２は、映像センサー２１に撮影される映像に基づいて昇降路２への保守員１６の出入りを検出する。計数部２３は、映像処理部２２に検出される出入りの情報に基づいて昇降路２において保守作業を行っている保守員１６の人数を計数する。抑制部１８が、計数部２３に計数される人数に基づいて、抑制信号を切替え部１５に出力する。抑制信号は、自動運転モードへの切替えを抑制する信号である。 As described above, the control system 12 according to the second embodiment includes the switching unit 15, the video sensor 21, the video processing unit 22, the counting unit 23, and the suppressing unit 18. The switching unit 15 switches the operation mode of the elevator 1. The elevator 1 includes an automatic operation mode as an operation mode. The image sensor 21 captures an image inside the hoistway 2 of the elevator 1. The image processing unit 22 detects whether the maintenance worker 16 enters or leaves the hoistway 2 based on the image captured by the image sensor 21. The counting unit 23 counts the number of maintenance personnel 16 performing maintenance work on the hoistway 2 based on the entry / exit information detected by the video processing unit 22. The suppression unit 18 outputs a suppression signal to the switching unit 15 based on the number of people counted by the counting unit 23. The suppression signal is a signal that suppresses switching to the automatic operation mode.
　保守員１６は、昇降路２での保守作業において、作業の内容に関わらず作業の開始時と終了時とに昇降路２に出入りする。保守員１６の昇降路２への出入りは、映像センサー２１および映像処理部２２によって検出される。抑制部１８による切替え部１５への抑制信号の出力は、計数部２３が計数する人数に基づいて行われる。これにより、制御システム１２は、昇降路２で保守作業が行われているときにエレベーター１の自動運転をさせない。保守員１６は、昇降路２の外部から昇降路２に出入りする。昇降路２の外部の照度は、昇降路２の内部の照度より高いことが多い。このため、昇降路２の内部の照度が映像の撮影に適さないほど低い場合においても、制御システム１２は、保守員１６の出入を検出できる。また、昇降路２の内部において、例えば小動物などの保守員１６の他の動くものが侵入する可能性がある。ここで、小動物は、保守作業の開始時または終了時に昇降路２の出入口から出入りしない。このため、保守員１６の他の動くものが昇降路２の内部にある場合においても、保守作業を行っている保守員１６の人数の計数の誤りが抑制される。 In the maintenance work on the hoistway 2, the maintenance staff 16 goes in and out of the hoistway 2 at the start and end of the work regardless of the content of the work. The entrance and exit of the maintenance staff 16 to the hoistway 2 is detected by the image sensor 21 and the image processing unit 22. The suppression unit 18 outputs the suppression signal to the switching unit 15 based on the number of people counted by the counting unit 23. As a result, the control system 12 does not automatically operate the elevator 1 when maintenance work is being performed on the hoistway 2. The maintenance staff 16 enters and exits the hoistway 2 from outside the hoistway 2. The illuminance outside the hoistway 2 is often higher than the illuminance inside the hoistway 2. Therefore, even when the illuminance inside the hoistway 2 is so low that it is not suitable for shooting an image, the control system 12 can detect the entry and exit of the maintenance staff 16. Further, inside the hoistway 2, there is a possibility that other moving objects such as small animals such as the maintenance personnel 16 may enter. Here, small animals do not enter or leave the entrance or exit of the hoistway 2 at the start or end of maintenance work. Therefore, even when other moving objects of the maintenance staff 16 are inside the hoistway 2, an error in counting the number of maintenance staff 16 performing maintenance work is suppressed.
　また、映像センサー２１は、昇降路２の出入口の上方に設けられる。 Also, the image sensor 21 is provided above the entrance of the hoistway 2.
　映像センサー２１は、昇降路２に出入りする保守員１６を上方から撮影する。このため、複数の保守員１６が同時に出入りする場合においても、複数の保守員１６のいずれかが他の保守員１６によって映像センサー２１から隠されることが抑制される。 The image sensor 21 takes an image of the maintenance personnel 16 who goes in and out of the hoistway 2 from above. Therefore, even when a plurality of maintenance personnel 16 enter and exit at the same time, it is possible to prevent any one of the plurality of maintenance personnel 16 from being hidden from the image sensor 21 by the other maintenance personnel 16.
　なお、制御システム１２は、照度センサー１７を備えてもよい。照度センサー１７は、エレベーター１の昇降路２に設けられる。このとき、抑制部１８は、照度センサー１７に測定される照度に基づいて、抑制信号を切替え部１５に出力する。なお、照度センサー１７は、例えばカメラであってもよい。制御システム１２は、照度センサー１７および映像センサー２１を兼ねるカメラを備えてもよい。 Note that the control system 12 may include an illuminance sensor 17. The illuminance sensor 17 is provided in the hoistway 2 of the elevator 1. At this time, the suppression unit 18 outputs a suppression signal to the switching unit 15 based on the illuminance measured by the illuminance sensor 17. The illuminance sensor 17 may be, for example, a camera. The control system 12 may include a camera that also serves as the illuminance sensor 17 and the image sensor 21.
　制御システム１２は、照度センサー１７または映像センサー２１のいずれかを切り替えてもよい。例えばシースルーエレベーターにおいて、照明装置２０が点灯していなくても昇降路２の照度が高い場合に、抑制部１８は、映像センサー２１が取得する昇降路２の情報に基づいて抑制信号を出力してもよい。例えば昇降路２の照度が点灯していなければ昇降路２の照度が低い場合に、抑制部１８は、照度センサー１７が取得する昇降路２の情報に基づいて抑制信号を出力してもよい。このように、抑制部１８は、例えば照明装置２０が点灯していない場合の昇降路２の照度などの状況に基づいて判定方法を切り替えてもよい。これにより、保守作業中か否かの誤検出が抑制される。 The control system 12 may switch either the illuminance sensor 17 or the video sensor 21. For example, in a see-through elevator, when the illuminance of the hoistway 2 is high even if the lighting device 20 is not turned on, the suppression unit 18 outputs a suppression signal based on the information of the hoistway 2 acquired by the video sensor 21. May be good. For example, if the illuminance of the hoistway 2 is not lit and the illuminance of the hoistway 2 is low, the suppression unit 18 may output the suppression signal based on the information of the hoistway 2 acquired by the illuminance sensor 17. In this way, the suppression unit 18 may switch the determination method based on a situation such as the illuminance of the hoistway 2 when the lighting device 20 is not lit. This suppresses erroneous detection of whether maintenance work is in progress.
　続いて、図４を用いて制御システム１２のハードウェア構成の例について説明する。
　図４は、実施の形態２に係る制御システムの主要部のハードウェア構成を示す図である。 Subsequently, an example of the hardware configuration of the control system 12 will be described with reference to FIG.
FIG. 4 is a diagram showing a hardware configuration of a main part of the control system according to the second embodiment.
　制御システム１２の各機能は、処理回路により実現し得る。処理回路は、少なくとも１つのプロセッサ１２ｂと少なくとも１つのメモリ１２ｃとを備える。処理回路は、プロセッサ１２ｂおよびメモリ１２ｃと共に、あるいはそれらの代用として、少なくとも１つの専用のハードウェア１２ａを備えてもよい。 Each function of the control system 12 can be realized by a processing circuit. The processing circuit includes at least one processor 12b and at least one memory 12c. The processing circuit may include at least one dedicated hardware 12a with or as a substitute for the processor 12b and the memory 12c.
　処理回路がプロセッサ１２ｂとメモリ１２ｃとを備える場合、制御システム１２の各機能は、ソフトウェア、ファームウェア、またはソフトウェアとファームウェアとの組み合わせで実現される。ソフトウェアおよびファームウェアの少なくとも一方は、プログラムとして記述される。そのプログラムはメモリ１２ｃに格納される。プロセッサ１２ｂは、メモリ１２ｃに記憶されたプログラムを読み出して実行することにより、制御システム１２の各機能を実現する。 When the processing circuit includes the processor 12b and the memory 12c, each function of the control system 12 is realized by software, firmware, or a combination of software and firmware. At least one of the software and firmware is written as a program. The program is stored in the memory 12c. The processor 12b realizes each function of the control system 12 by reading and executing the program stored in the memory 12c.
　プロセッサ１２ｂは、ＣＰＵ（Ｃｅｎｔｒａｌ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ）、処理装置、演算装置、マイクロプロセッサ、マイクロコンピューター、ＤＳＰともいう。メモリ１２ｃは、例えば、ＲＡＭ、ＲＯＭ、フラッシュメモリ、ＥＰＲＯＭ、ＥＥＰＲＯＭ等の、不揮発性または揮発性の半導体メモリ、磁気ディスク、フレキシブルディスク、光ディスク、コンパクトディスク、ミニディスク、ＤＶＤ等により構成される。 The processor 12b is also referred to as a CPU (Central Processing Unit), a processing device, an arithmetic unit, a microprocessor, a microcomputer, and a DSP. The memory 12c is composed of a nonvolatile or volatile semiconductor memory such as a RAM, a ROM, a flash memory, an EPROM, an EEPROM, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, a DVD, or the like.
　処理回路が専用のハードウェア１２ａを備える場合、処理回路は、例えば、単一回路、複合回路、プログラム化したプロセッサ、並列プログラム化したプロセッサ、ＡＳＩＣ、ＦＰＧＡ、またはこれらの組み合わせで実現される。 When the processing circuit includes the dedicated hardware 12a, the processing circuit is realized by, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof.
　制御システム１２の各機能は、それぞれ処理回路で実現することができる。あるいは、制御システム１２の各機能は、まとめて処理回路で実現することもできる。制御システム１２の各機能について、一部を専用のハードウェア１２ａで実現し、他部をソフトウェアまたはファームウェアで実現してもよい。このように、処理回路は、ハードウェア１２ａ、ソフトウェア、ファームウェア、またはこれらの組み合わせで制御システム１２の各機能を実現する。 Each function of the control system 12 can be realized by a processing circuit. Alternatively, each function of the control system 12 can be collectively realized by a processing circuit. Part of each function of the control system 12 may be realized by dedicated hardware 12a, and the other part may be realized by software or firmware. Thus, the processing circuit implements each function of the control system 12 by the hardware 12a, software, firmware, or a combination thereof.
　本発明に係る制御システムは、エレベーターに適用できる。 The control system according to the present invention can be applied to an elevator.
　１　エレベーター、　２　昇降路、　３　乗場、　４　乗場出入口、　５　ピット、　６　巻上機、　７　主ロープ、　８　かご、　９　釣合い錘、　１０　かご扉、　１１　乗場扉、　１２　制御システム、　１３　制御盤、　１４　自動運転抑制装置、　１５　切替え部、　１６　保守員、　１７　照度センサー、　１８　抑制部、　１９　保守対象装置、　２０　照明装置、　２１　映像センサー、　２２　映像処理部、　２３　計数部、　１２ａ　ハードウェア、　１２ｂ　プロセッサ、　１２ｃ　メモリ 1 elevator, 2 hoistway, 3 hall, 4 hallway entrance, 5 pit, 6 hoisting machine, 7 main rope, 8 car, 9 counterweight, 10 car door, 11 landing door, 12 control system, 13 control panel, 14 Automatic operation suppression device, 15 switching unit, 16 maintenance personnel, 17 illuminance sensor, 18 suppression unit, 19 maintenance target device, 20 lighting device, 21 video sensor, 22 video processing unit, 23 counting unit, 12a hardware, 12b processor, 12c memory

Claims (10)

  1. 　自動運転モードを運転モードに含むエレベーターの前記運転モードを切り替える切替え部と、
    　前記エレベーターの昇降路に設けられる照度センサーと、
    　前記照度センサーに測定される照度に基づいて、前記自動運転モードへの切替えを抑制する抑制信号を前記切替え部に出力する抑制部と、
    　を備えるエレベーターの制御システム。     A switching unit that switches the operation mode of the elevator including the automatic operation mode in the operation mode,
    An illuminance sensor provided on the hoistway of the elevator and
    Based on the illuminance measured by the illuminance sensor, a suppression unit that outputs a suppression signal for suppressing switching to the automatic operation mode to the switching unit,
    Elevator control system equipped with.
  2. 　前記照度センサーは、前記昇降路の出入口に隣接して設けられる
    　請求項１に記載のエレベーターの制御システム。     The elevator control system according to claim 1, wherein the illuminance sensor is provided adjacent to an entrance of the hoistway.
  3. 　前記照度センサーは、前記エレベーターのかごまたは釣合い錘の少なくとも一方の下部に設けられる
    　請求項１に記載のエレベーターの制御システム。     The elevator control system according to claim 1, wherein the illuminance sensor is provided in a lower portion of at least one of a car and a counterweight of the elevator.
  4. 　前記照度センサーは、前記エレベーターのかごの上部に設けられる
    　請求項１に記載のエレベーターの制御システム。     The elevator control system according to claim 1, wherein the illuminance sensor is provided on an upper portion of a car of the elevator.
  5. 　前記照度センサーは、前記昇降路の内部の保守対象装置に設けられる
    　請求項１に記載のエレベーターの制御システム。     The elevator control system according to claim 1, wherein the illuminance sensor is provided in a maintenance target device inside the hoistway.
  6. 　前記抑制部は、前記照度センサーに測定される照度が予め設定された閾値を超えているときに前記抑制信号を出力する
    　請求項１から請求項５のいずれか一項に記載のエレベーターの制御システム。     The control system for an elevator according to any one of claims 1 to 5, wherein the suppression unit outputs the suppression signal when the illuminance measured by the illuminance sensor exceeds a preset threshold value. ..
  7. 　前記抑制部は、前記照度センサーに測定される照度の正の変化量が予め設定された閾値を超えるときに前記抑制信号の出力を開始し、前記照度センサーに測定される照度の負の変化量の絶対値が予め設定された閾値を超えるときに前記抑制信号の出力を終了する
    　請求項１から請求項５のいずれか一項に記載のエレベーターの制御システム。     The suppression unit starts the output of the suppression signal when the positive change amount of the illuminance measured by the illuminance sensor exceeds a preset threshold value, and the negative change amount of the illuminance measured by the illuminance sensor. The elevator control system according to any one of claims 1 to 5, wherein the output of the suppression signal is ended when the absolute value of the above exceeds a preset threshold value.
  8. 　前記昇降路の内部の映像を撮影する映像センサーと、
    　前記映像センサーに撮影される映像に基づいて前記昇降路への保守員の出入りを検出する映像処理部と、
    　前記映像処理部に検出される出入りの情報に基づいて前記昇降路において保守作業を行っている保守員の人数を計数する計数部と、
    　を備え、
    　前記抑制部は、前記計数部に計数される人数に基づいて、前記抑制信号を出力する
    　請求項１から請求項７のいずれか一項に記載のエレベーターの制御システム。     An image sensor for taking an image of the inside of the hoistway,
    An image processing unit that detects the entry and exit of maintenance personnel to the hoistway based on the image captured by the image sensor, and
    A counting unit that counts the number of maintenance personnel performing maintenance work on the hoistway based on the entry / exit information detected by the video processing unit.
    Equipped with
    The elevator control system according to any one of claims 1 to 7, wherein the suppression unit outputs the suppression signal based on the number of persons counted by the counting unit.
  9. 　自動運転モードを運転モードに含むエレベーターの前記運転モードを切り替える切替え部と、
    　前記エレベーターの昇降路の内部の映像を撮影する映像センサーと、
    　前記映像センサーに撮影される映像に基づいて前記昇降路への保守員の出入りを検出する映像処理部と、
    　前記映像処理部に検出される出入りの情報に基づいて前記昇降路において保守作業を行っている保守員の人数を計数する計数部と、
    　前記計数部に計数される人数に基づいて、前記自動運転モードへの切替えを抑制する抑制信号を前記切替え部に出力する抑制部と、
    　を備えるエレベーターの制御システム。     A switching unit that switches the operation mode of the elevator that includes the automatic operation mode as the operation mode, and
    An image sensor for taking an image of the inside of the elevator hoistway,
    An image processing unit that detects the entry and exit of maintenance personnel to the hoistway based on the image captured by the image sensor, and
    A counting unit that counts the number of maintenance personnel performing maintenance work on the hoistway based on the entry / exit information detected by the video processing unit.
    A suppression unit that outputs a suppression signal that suppresses switching to the automatic operation mode to the switching unit based on the number of people counted in the counting unit.
    Elevator control system equipped with.
  10. 　前記映像センサーは、前記昇降路の出入口の上方に設けられる
    　請求項８または請求項９に記載のエレベーターの制御システム。     The elevator control system according to claim 8 or 9, wherein the image sensor is provided above the entrance / exit of the hoistway.
PCT/JP2019/008851 2019-03-06 2019-03-06 Elevator control system to prevent automatic operation during maintenance work in elevator shaft WO2020179011A1 (en)

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CN201980089572.2A CN113329963B (en) 2019-03-06 2019-03-06 Control system for elevator not automatically operating when maintenance work is performed in hoistway
JP2019541823A JP6791395B1 (en) 2019-03-06 2019-03-06 Elevator control system that does not automatically operate when maintenance work is being performed on the hoistway
PCT/JP2019/008851 WO2020179011A1 (en) 2019-03-06 2019-03-06 Elevator control system to prevent automatic operation during maintenance work in elevator shaft

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