CN113015685B - Monitoring device for detecting contamination of a security camera of an elevator, determination device and elevator system - Google Patents

Monitoring device for detecting contamination of a security camera of an elevator, determination device and elevator system Download PDF

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Publication number
CN113015685B
CN113015685B CN201880099450.7A CN201880099450A CN113015685B CN 113015685 B CN113015685 B CN 113015685B CN 201880099450 A CN201880099450 A CN 201880099450A CN 113015685 B CN113015685 B CN 113015685B
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China
Prior art keywords
image
car
elevator
security camera
information
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CN201880099450.7A
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CN113015685A (en
Inventor
滨田恭平
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Mitsubishi Electric Building Solutions Corp
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Mitsubishi Electric Building Solutions Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02Cages, i.e. cars
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B3/00Applications of devices for indicating or signalling operating conditions of elevators
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/18Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

Provided is an elevator monitoring device capable of detecting and preventing contamination of a camera while ensuring privacy of a user. The elevator monitoring device comprises: an operation mode setting unit that sets an operation mode of the elevator; and an image information acquisition unit that acquires information on an image of a security camera when no person is in the elevator car in a state in which the operation mode setting unit sets the operation mode of the elevator to an image acquisition mode for detecting contamination of the security camera provided in the elevator car.

Description

Monitoring device for detecting contamination of a security camera of an elevator, determination device and elevator system
Technical Field
The present invention relates to a monitoring device, a determination device, and an elevator system for detecting contamination of a security camera of an elevator.
Background
Patent document 1 discloses a video recording apparatus. According to the video recording device, the contamination of the security camera of the elevator can be detected from the information of the image of the security camera.
Prior art literature
Patent literature
Patent document 1: japanese patent application laid-open No. 2017-183916
Disclosure of Invention
Problems to be solved by the invention
However, in the video recording apparatus described in patent document 1, an image of a user inside the car may be included in an image used when contamination of the security camera is detected. Therefore, the privacy of the user may not be ensured.
The present invention has been made to solve the above-described problems. The purpose of the present invention is to provide a monitoring device, a determination device, and an elevator system that can detect and prevent contamination of a camera while ensuring privacy of a user.
Means for solving the problems
The elevator monitoring device of the invention comprises: an operation mode setting unit that sets an operation mode of the elevator; and an image information acquisition unit that determines whether or not an image information acquisition condition is satisfied when an operation mode of the elevator is set to an image acquisition mode for detecting contamination of a security camera provided in a car of the elevator, and acquires information of an image of the security camera when no person is in the car in a state in which the elevator is controlled so that the image information acquisition condition is satisfied based on a promotion instruction output when the image information acquisition condition is not satisfied.
The elevator judging device of the invention comprises a judging part, when the elevator operation mode is an image acquisition mode and the monitoring device obtains the information of the image of the prevention camera when no person is in the elevator, the judging part judges the pollution condition of the prevention camera according to the information of the image.
The elevator system of the present invention comprises: an operation mode setting unit that sets an operation mode of the elevator; an image information acquisition unit that determines whether or not an image information acquisition condition is satisfied when an operation mode of the elevator is set to an image acquisition mode for detecting contamination of a security camera provided in a car of the elevator, and acquires information of an image of the security camera when no person is in the car in a state in which the image information acquisition condition is satisfied by controlling the elevator based on a promotion instruction output when the image information acquisition condition is not satisfied; and a determination unit that determines a contamination condition of the camera based on information of an image of the security camera when the image acquisition unit acquires the information of the image of the security camera when no person is present in the elevator when the operation mode of the elevator is an image acquisition mode.
Effects of the invention
According to these inventions, when the operation mode of the elevator is the image acquisition mode, an image of the security camera when no person is inside the car is acquired. Therefore, the contamination of the camera can be detected and prevented while ensuring the privacy of the user.
Drawings
Fig. 1 is a block diagram of an elevator system to which the monitoring device for an elevator in embodiment 1 is applied.
Fig. 2 is a block diagram of an elevator system to which the monitoring device of the elevator in embodiment 1 is applied.
Fig. 3 is a flowchart for explaining an outline of the operation of the elevator monitoring device in embodiment 1.
Fig. 4 is a flowchart for explaining an outline of the operation of the determination device of the elevator in embodiment 1.
Fig. 5 is a flowchart for explaining an outline of the operation of the information center device of the elevator in embodiment 1.
Fig. 6 is a hardware configuration diagram of the elevator monitoring device in embodiment 1.
Detailed Description
The manner in which the invention can be practiced is illustrated in the accompanying drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals. The repeated explanation of this portion is appropriately simplified or omitted.
Embodiment 1
Fig. 1 is a block diagram of an elevator system to which the monitoring device for an elevator in embodiment 1 is applied.
In the elevator system of fig. 1, a hoistway 1 penetrates floors of a building, not shown. The machine room 2 is disposed directly above the hoistway 1. The plurality of landing 3 are provided on each floor of the building. The plurality of landings 3 are respectively opposed to the hoistway 1.
The hoisting machine 4 is provided in the machine room 2. The main rope 5 is wound around the hoisting machine 4.
The car 6 is provided inside the hoistway 1. The car 6 is suspended on one side of the main rope 5. The counterweight 7 is provided inside the hoistway 1. The counterweight 7 is suspended from the other side of the main ropes 5.
The plurality of landing doors 8 are provided at the entrances and exits of the plurality of landing stations 3, respectively. The car door 9 is provided at an entrance of the car 6.
The lighting device 10 is provided on the ceiling of the car 6. The lighting device 10 is provided so as to emit light toward the inside of the car 6 when lit. The lighting device 10 is turned off when the stop of the elevator continues for a predetermined time or longer. The scale device 11 is provided in the car 6. The scale device 11 is provided so as to be able to detect a load applied to the car 6. The security camera 12 is provided in the car 6. The security camera 12 is provided so as to be able to photograph the inside of the car 6.
For example, the control device 13 is provided in the machine room 2. The control device 13 is electrically connected to the hoisting machine 4 and the equipment of the car 6. The control device 13 is arranged to be able to control the elevator as a whole.
The monitoring device 14 is provided in the machine room 2. The monitoring device 14 is electrically connected to the control device 13. The monitoring device 14 is arranged to be able to monitor the status of the elevator on the basis of information from the control device 13.
For example, the determination device 15 is provided at a location separated from a building in which an elevator is provided. For example, the determination device 15 is provided in a maintenance company of an elevator. For example, the function of the determination device 15 may be provided in the monitoring device 14.
The information center device 16 is provided at a location separated from a building in which an elevator is provided. For example, the information center device 16 is provided in a maintenance company of an elevator. The information center device 16 is provided so as to be able to grasp the state of the elevator based on information from the monitoring device 14 and the determination device 15.
Next, the monitoring device 14 and the determination device 15 will be described with reference to fig. 2.
Fig. 2 is a block diagram of a monitoring device and a determination device for an elevator in embodiment 1.
As shown in fig. 2, the monitoring device 14 includes an operation mode setting unit 14a and an image information acquiring unit 14b.
The operation mode setting unit 14a sets an operation mode of the elevator. The image information acquisition unit 14b determines whether the operation mode setting unit 14a sets the operation mode of the elevator to an image acquisition mode for detecting contamination of the security camera 12.
When the operation mode setting unit 14a sets the operation mode of the elevator to the image acquisition mode at the time of remote spot inspection, the image information acquisition unit 14b determines whether or not an image information acquisition condition for acquiring information for detecting an image for preventing contamination of the camera 12 is satisfied.
For example, when no person is present in the car 6, the image information acquisition unit 14b determines that the image information acquisition condition is satisfied. For example, when no person is present in the car 6 when the lighting device 10 of the car 6 is turned on, the image information acquisition unit 14b determines that the image information acquisition condition is satisfied. For example, when the illumination device 10 of the car 6 is turned on and no person is present in the car 6 when the door of the car 6 is closed, the image information acquisition unit 14b determines that the image information acquisition condition is satisfied. For example, when the door of the car 6 is closed and the lighting device 10 of the car 6 is turned on and no person is present in the car 6 when the car 6 is stopped, the image information acquisition unit 14b determines that the image information acquisition condition is satisfied. For example, when the door of the car 6 is closed and the lighting device 10 of the car 6 is turned on and no person is present in the car 6 when the car 6 stops at a predetermined specific floor, the image information acquisition unit 14b determines that the image information acquisition condition is satisfied.
When the image information acquisition condition is satisfied, the image information acquisition unit 14b acquires information of the image of the security camera 12. The image information acquiring unit 14b transmits the information of the image to the determination device 15.
As shown in fig. 2, the determination device 15 includes a determination unit 15a.
The determination unit 15a determines the contamination of the security camera 12 based on the information of the image from the monitoring device 14.
For example, the determination unit 15a determines the contamination situation of the security camera 12 based on, for example, the comparison result between the information of the reference image of the security camera 12 when no person is present in the car 6 and the information of the image acquired by the monitoring device 14 when the operation mode of the elevator is the image acquisition mode, in a state where the security camera 12 is not contaminated and the image information acquisition condition is satisfied. At this time, the determination unit 15a digitizes the image information and then determines that contamination of the camera 12 is prevented.
When the monitoring device 14 acquires information of an image of the security camera 12 when no person is inside the car 6 when the operation mode of the elevator is the image acquisition mode, the determination unit 15a determines a failure of the security camera 12 based on the information of the image. For example, when most of the information of the image is information indicating black, the determination unit 15a determines to prevent the camera 12 from malfunctioning.
Next, an outline of the operation of the monitoring device 14 will be described with reference to fig. 3.
Fig. 3 is a flowchart for explaining an outline of the operation of the elevator monitoring device in embodiment 1.
In step 1, the monitoring device 14 determines whether or not the current time is a period in which the operation mode of the elevator is set to the image acquisition mode.
In the case where the current time in step S1 is not a time period in which the operation mode of the elevator is set to the image acquisition mode, the monitoring device 14 performs the operation in step S1. In the case where the current time in step S1 is a time period in which the operation mode of the elevator is set to the image acquisition mode, the monitoring device 14 performs the operation of step S2.
In step S2, the monitoring device 14 sets the operation mode of the elevator to the image acquisition mode. In setting the image acquisition mode, the monitoring device 14 may output a promotion instruction to the control device 13 to promote establishment of the image information acquisition condition. For example, in the setting of the image acquisition mode, when the image information acquisition condition described above includes the lighting device 10 of the car 6 being turned on, the monitoring device 14 determines whether the lighting device 10 of the car 6 is turned on or off. When it is determined that the lighting device 10 of the car 6 is turned off in this determination, the monitoring device 14 outputs a promotion instruction for turning on the lighting device 10 of the car 6 to the control device 13. For example, in the setting of the image acquisition mode, when the image information acquisition condition described above includes the door of the car 6 being closed, the monitoring device 14 determines whether the door of the car 6 is closed or opened. When it is determined that the door of the car 6 is open in this determination, the monitoring device 14 outputs a promotion instruction for closing the door of the car 6 to the control device 13. For example, in the setting of the image acquisition mode, when the image information acquisition condition includes stopping at a predetermined specific floor, the monitoring device 14 determines whether or not the car 6 is stopped at the predetermined specific floor. When it is determined that the car 6 has not stopped at the predetermined specific floor in this determination, the monitoring device 14 outputs a promotion command for moving the car 6 to the predetermined specific floor to the control device 13. Then, the monitoring device 14 performs the operation of step S3. In step S3, the monitoring device 14 determines whether or not the image information acquisition condition is satisfied.
When the image information acquisition condition is not satisfied in step S3, the monitoring device 14 performs the operation of step S1. When the time period for setting to the image acquisition mode in step 1 has elapsed while the image information acquisition condition is not satisfied, the image acquisition mode setting operation may be temporarily suspended, for example, the image acquisition mode setting operation may be restarted in the same time period on the next day. In the case where the image information acquisition condition is not satisfied in step S3, the monitoring device 14 may output a promotion instruction to the control device 13 to promote satisfaction of the image information acquisition condition. When the image information acquisition condition is satisfied in step S3, the monitoring device 14 performs the operation of step S4.
In step S4, the monitoring device 14 acquires information about the image of the security camera 12. Then, the monitoring device 14 performs the operation of step S5. In step S5, the monitoring device 14 transmits information of the image to the determination device 15. Then, the monitoring device 14 ends the operation.
Next, an outline of the operation of the determination device 15 will be described with reference to fig. 4.
Fig. 4 is a flowchart for explaining an outline of the operation of the determination device of the elevator in embodiment 1.
In step S11, the determination device 15 determines whether or not information of an image from the monitoring device 14 is received. When the image from the monitoring device 14 is not received in step S11, the determination device 15 performs the operation of step S11. When the image from the monitoring device 14 is received in step S11, the determination device 15 performs the operation of step S12.
In step S12, the determination device 15 determines whether or not the security camera 12 has failed based on the information of the image.
In the case where the camera 12 is prevented from malfunctioning in step S12, the determination device 15 performs the operation of step S13. In step S13, the determination means 15 determines whether the security camera 12 is contaminated or not based on the information of the image.
In the case where the camera 12 is prevented from being contaminated in step S13, the determination device 15 performs the operation of step S14. In step S14, the determination device 15 transmits information indicating that the camera 12 is prevented from being contaminated and has not failed to the information center device 16. Then, the determination device 15 ends the operation.
In the case where the camera 12 is prevented from malfunctioning in step S12, the determination device 15 performs the operation of step S15. In step S15, the determination device 15 transmits information indicating that the camera 12 is prevented from malfunctioning to the information center device 16. Then, the determination device 15 ends the operation.
In the case where the camera 12 is prevented from being contaminated in step S13, the determination device 15 performs the operation of step S16. In step S16, the determination device 15 transmits information indicating that the camera 12 is protected from contamination to the information center device 16. Then, the determination device 15 ends the operation.
Next, an outline of the operation of the information center device 16 will be described with reference to fig. 5.
Fig. 5 is a flowchart for explaining an outline of the operation of the information center device of the elevator in embodiment 1.
In step S21, the information center apparatus 16 determines whether or not information from the determination apparatus 15 is received. If the information from the determination device 15 is not received in step S21, the information center device 16 performs the operation of step S21. When the information from the determination device 15 is received in step S21, the information center device 16 performs the operation of step S22.
In step S22, the information center apparatus 16 determines whether or not the security camera 12 has failed based on the information.
In the case where the camera 12 is prevented from malfunctioning in step S22, the determination device 15 performs the operation of step S23. In step S23, the information center apparatus 16 determines whether the security camera 12 is contaminated or not based on the information.
In the case where the camera 12 is prevented from being contaminated in step S23, the information center apparatus 16 performs the operation of step S24. In step S24, the information center device 16 registers information indicating that the camera 12 is prevented from being contaminated and from malfunctioning as the maintenance history of the elevator. Then, the information center device 16 ends the operation.
In the case where the camera 12 is prevented from malfunctioning in step S22, the information center apparatus 16 performs the operation of step S25. In step S25, the information center device 16 registers information indicating that the security camera 12 has failed as the maintenance history of the elevator. At this time, the information center device 16 transmits information indicating that the security camera 12 has failed to a portable terminal of a maintainer located near the building where the elevator is installed. Then, the information center device 16 ends the operation.
In the case where the camera 12 is prevented from being contaminated in step S23, the information center apparatus 16 performs the operation of step S26. In step S26, the information center apparatus 16 registers information indicating that the security camera 12 is contaminated as the maintenance history of the elevator. At this time, the information center device 16 transmits information indicating that the security camera 12 is contaminated to a portable terminal of a maintainer located near the building where the elevator is installed. Then, the information center device 16 ends the operation.
According to embodiment 1 described above, when the operation mode of the elevator is the image acquisition mode, the image of the security camera 12 is acquired when no person is present in the car 6. Therefore, contamination of the camera 12 can be detected and prevented while ensuring privacy. Further, it is sufficient to determine whether or not the inside of the car 6 is unmanned based on the detection result of the scale device 11. Further, it may be determined that no person is present in the car 6 when there is no car call.
For example, the monitoring device 14 acquires information of the image of the security camera 12 when no person is present in the car 6 when the lighting device 10 is turned on. Therefore, information for preventing the image of the camera 12 can be acquired in a state where the interior of the car 6 is brighter. As a result, contamination of the security camera 12 can be detected more reliably.
For example, when the door of the car 6 is closed, the monitoring device 14 acquires information of the image of the security camera 12 when the lighting device 10 is turned on and the inside of the car 6 is unmanned. Therefore, the conditions for acquiring the image information of the security camera 12 can be matched, and the image information of the security camera 12 can be acquired in a state where the interior of the car 6 is brighter. As a result, contamination of the security camera 12 can be detected more reliably.
For example, when the car 6 is stopped, the monitoring device 14 acquires information of an image of the security camera 12 when the door of the car 6 is closed, the lighting device 10 is turned on, and the inside of the car 6 is unmanned. Therefore, it is possible to prevent light from entering from the security window provided in the car 6 from varying, to make the conditions uniform when the information of the image of the security camera 12 is acquired, and to acquire the information of the image of the security camera 12 when the inside of the car 6 is in a brighter state. As a result, contamination of the security camera 12 can be detected more reliably.
For example, when the car 6 is stopped at a predetermined specific floor, the monitoring device 14 acquires information on the image of the security camera 12 when the door of the car 6 is closed, the lighting device 10 is turned on, and no person is present in the car 6. Therefore, it is possible to prevent light from entering from the security window provided in the car 6 from varying, to make the conditions uniform when the information of the image of the security camera 12 is acquired, and to acquire the information of the image of the security camera 12 when the inside of the car 6 is in a brighter state. As a result, contamination of the security camera 12 can be detected more reliably.
The determination device 15 determines the contamination of the security camera 12 based on the information of the image from the security camera 12. Therefore, contamination of the camera 12 can be detected and prevented while ensuring privacy.
Specifically, the determination device 15 determines the contamination of the security camera 12 based on the result of comparison between the information of the reference image of the security camera 12 when the security camera 12 is not contaminated and no person is present in the car 6 and the information of the image acquired by the monitoring device 14 when the operation mode of the elevator is the image acquisition mode. Therefore, contamination of the security camera 12 can be detected more reliably.
The determination device 15 also determines that contamination of the camera 12 is prevented after digitizing the image information. Therefore, contamination of the security camera 12 can be quantitatively detected while ensuring privacy reliably.
Further, the determination means 15 determines a malfunction of the security camera 12 based on information of the image from the security camera 12. Thus, contamination and malfunction of the camera 12 can be discriminated and prevented for detection.
The determination device 15 transmits information of the determination result of the state of the security camera 12 to the outside. Therefore, the maintenance person or the like can be appropriately informed of the state of the security camera 12. As a result, an appropriate maintenance work can be performed on the security camera 12.
The function of the determination device 15 may be provided adjacent to the monitoring device 14. The function of the determination device 15 may be provided in the information center device 16. In this case, the contamination of the camera 12 can be detected and prevented while ensuring privacy.
Further, the determination device 15 may directly transmit information of the determination result of the state of the security camera 12 to the portable terminal of the maintainer. In this case, the security camera 12 can be appropriately maintained.
The monitoring device 14, the determination device 15, and the elevator system according to embodiment 1 may be applied to an elevator without the machine room 2. In this case, the contamination of the camera 12 can be detected and prevented while ensuring the privacy of the user.
Next, an example of the monitoring device 14 will be described with reference to fig. 6.
Fig. 6 is a hardware configuration diagram of the elevator monitoring device in embodiment 1.
The functions of the monitoring device 14 can be realized by a processing circuit. For example, the processing circuit has at least 1 processor 17a and at least 1 memory 17b. For example, the processing circuitry has at least 1 dedicated hardware 18.
In the case of a processing circuit having at least 1 processor 17a and at least 1 memory 17b, the functions of the monitoring device 14 are implemented by software, firmware or a combination of software and firmware. At least one of the software and the firmware is described as a program. At least one of the software and firmware is stored in at least 1 memory 17b. At least 1 processor 17a realizes each function of the monitoring device 14 by reading out and executing programs stored in at least 1 memory 17b. At least 1 processor 17a is also called central processing unit, arithmetic unit, microprocessor, microcomputer, DSP. For example, at least 1 memory 17b is a nonvolatile or volatile semiconductor memory such as RAM, ROM, flash memory, EPROM, EEPROM, etc., a magnetic disk, a floppy disk, an optical disk, a high-density disk, a mini disk, a DVD, etc.
In the case of a processing circuit having at least 1 dedicated hardware 18, the processing circuit is implemented, for example, by a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof. For example, each function of the monitoring device 14 is realized by a processing circuit. For example, the functions of the monitoring device 14 are unified by a processing circuit.
With respect to each function of the monitoring device 14, one part may be realized by dedicated hardware 18, and the other part may be realized by software or firmware. For example, the functions of the operation mode setting unit 14a may be realized by a processing circuit that is dedicated hardware 18, and the functions other than the functions of the operation mode setting unit 14a may be realized by at least 1 processor 17a reading and executing a program stored in at least 1 memory 17b.
Thus, the processing circuitry implements the functions of the monitoring device 14 through hardware 18, software, firmware, or a combination thereof.
Although not shown, the functions of the control device 13 may be realized by the same processing circuit as that for realizing the functions of the monitoring device 14. The respective functions of the determination device 15 may be realized by the same processing circuit as that for realizing the respective functions of the monitoring device 14. The functions of the information center device 16 may be realized by the same processing circuit as the processing circuit that realizes the functions of the monitoring device 14.
Industrial applicability
As described above, the monitoring device, the determination device, and the elevator system of the present invention can be used for detecting a system for preventing contamination of a camera.
Description of the reference numerals
1: a hoistway; 2: a machine room; 3: a landing; 4: a traction machine; 5: a main rope; 6: a car; 7: a counterweight; 8: landing door; 9: a car door; 10: a lighting device; 11: a scale device; 12: the camera is prevented; 13: a control device; 14: a monitoring device; 14a: an operation mode setting unit; 14b: an image information acquisition unit; 15: a judging device; 15a: a determination unit; 16: an information center device; 17a: a processor; 17b: a memory; 18: hardware.

Claims (11)

1. A monitoring device, the monitoring device comprising:
an operation mode setting unit that sets an operation mode of the elevator; and
an image information acquisition unit that, when an operation mode of the elevator is set to an image acquisition mode for detecting contamination of a security camera provided in a car of the elevator, determines whether an image information acquisition condition is satisfied, outputs a promotion instruction when the image information acquisition condition is not satisfied, and acquires information of an image of the security camera when no person is present in the car in a state in which the image information acquisition condition is satisfied by controlling the elevator based on the outputted promotion instruction,
wherein controlling the elevator to establish the image information acquisition condition according to the promotion instruction includes: the lighting device of the car is turned on, the door of the car is closed, the car is stopped or the car is stopped at a predetermined specific floor.
2. The monitoring device according to claim 1, wherein,
the image information acquisition unit acquires information on an image of the security camera when no person is present in the car when the illumination device of the car is on.
3. The monitoring device according to claim 1, wherein,
the image information acquisition unit acquires information on an image of the security camera when the illumination device of the car is on and the inside of the car is unmanned when the door of the car is closed.
4. The monitoring device according to claim 1, wherein,
the image information acquisition unit acquires information on an image of the security camera when the door of the car is closed, the illumination device of the car is on, and no person is in the car when the car is stopped.
5. The monitoring device according to claim 1, wherein,
the image information acquisition unit acquires information on an image of the security camera when the door of the car is closed, the illumination device of the car is on, and no person is in the car when the car is stopped at a predetermined specific floor.
6. A judging device, wherein,
the determination device includes a determination unit that determines a contamination condition of the security camera based on information of an image of the security camera when the monitoring device according to any one of claims 1 to 5 acquires the information of the image of the security camera when no person is present in the elevator when the operation mode of the elevator is an image acquisition mode.
7. The decision device according to claim 6, wherein,
the determination unit determines the contamination of the security camera based on a result of comparing information of a reference image of the security camera when the security camera is not contaminated and no person is in the car with information of an image acquired by the monitoring device when the operation mode of the elevator is an image acquisition mode.
8. The determination device according to claim 6 or 7, wherein,
the determination unit determines the contamination of the security camera after digitizing the image information.
9. The determination device according to claim 6 or 7, wherein,
when the elevator operation mode is an image acquisition mode, the determination unit determines a failure of the security camera based on information of an image of the security camera when the monitoring device acquires the information of the image of the security camera when no person is present in the elevator.
10. The determination device according to claim 6 or 7, wherein,
the determination unit transmits information of a determination result of the state of the security camera to the outside.
11. An elevator system, the elevator system having:
an operation mode setting unit that sets an operation mode of the elevator;
an image information acquisition unit that, when an operation mode of the elevator is set to an image acquisition mode for detecting contamination of a security camera provided in a car of the elevator, determines whether an image information acquisition condition is satisfied, outputs a promotion instruction when the image information acquisition condition is not satisfied, and acquires information of an image of the security camera when no person is in the car in a state where the image information acquisition condition is satisfied by controlling the elevator based on the outputted promotion instruction; and
a determination unit configured to determine a contamination condition of the security camera based on information of an image of the security camera when the image information acquisition unit acquires the information of the image of the security camera when no person is present in the elevator when the operation mode of the elevator is an image acquisition mode,
wherein controlling the elevator to establish the image information acquisition condition according to the promotion instruction includes: the lighting device of the car is turned on, the door of the car is closed, the car is stopped or the car is stopped at a predetermined specific floor.
CN201880099450.7A 2018-12-11 2018-12-11 Monitoring device for detecting contamination of a security camera of an elevator, determination device and elevator system Active CN113015685B (en)

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CN113015685B true CN113015685B (en) 2023-08-11

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