Operation assisting system of elevator and operation assisting method

Abstract

The present application provides a work assisting system and a work assisting method for an elevator. The present application provides a system for grasping the opening and closing state of a landing door of an elevator and issuing a warning to a worker. The work assisting system for an elevator of the present application is provided with an image acquisition device (12) for taking an image and an information processing terminal (13) for processing the image. The information processing terminal (13) analyzes the image taken by the image acquisition device (12) through an analysis section (132). A determination section (133) recognizes the landing door (10) from the analyzed image data, determines that the luminance of the analyzed image data changes after the worker (16) unlocks the landing door (10) from the elevator hall (22) side based on the upward movement and the downward movement of the analyzed image data, determines that the worker (16) opens the landing door (10) from the elevator hall (22) side in the case where the luminance decreases, and issues a warning from a sound section (134).

Description

TECHNICAL FIELD

[0001] The present application relates to a work assisting system of an elevator and a work assisting method for assisting a maintenance work of an elevator. BACKGROUND

[0002] An elevator is configured to suspend a main rope on a hoisting machine provided in an upper portion or a lower portion of a hoistway, and to suspend an elevator car at one end side of the main rope and a counterweight at the other end side, and to drive the hoisting machine to wind up the main rope, whereby the elevator car and the counterweight are hoisted in a bucket fashion in the hoistway.

[0003] A maintenance work of an elevator is periodically performed. The maintenance work of the elevator is performed for the purpose of approaching a device provided at a top portion in the hoistway or a control panel provided at a lower portion, and the like, and a worker needs to ride on the elevator car. When the worker rides on the elevator car, after confirming the car position by opening a landing door, a safety rope for preventing falling is installed, and further a wearable camera is used to leave a use history. The inside of the hoistway is dark, and thus it is difficult to confirm the car position. If the worker rides in a state where the car position is not sufficiently confirmed, there is a possibility of falling, and thus a means for reminding the worker is needed.

[0004] As a means for reminding a worker of warning, there is, for example, the technology described in Patent Literature 1. In Patent Literature 1, a technology is disclosed in which an electric station monitoring device that collects opening / closing states or operation / non-operation states related to a plurality of electrical devices, generates opening / closing state / operation / non-operation state information, a server that generates charge / discharge information related to the electrical devices based on the opening / closing state / operation / non-operation state information acquired from the electric station monitoring device, and a camera that generates a warning image indicating a charge state of the electrical devices photographed by the camera based on the charge / discharge information acquired from the server, and causes the warning image to be displayed on a wearable terminal worn by a worker are provided.

[0005] In the maintenance work of the elevator, when the worker rides on the top of the elevator car, a procedure of opening a landing door from the elevator hall side is generated, and when the worker descends from the top of the elevator car to the elevator hall, a procedure of opening a landing door from the hoistway side is generated.

[0006] In the case where the camera photographs the procedure of opening the landing door from the elevator hall side, the camera photographs a dark place from a bright place. On the other hand, in the case where the camera photographs the procedure of opening the landing door from the hoistway side, the camera photographs a bright place from a dark place. In this way, in the maintenance work of the elevator, the environment in which the camera photographs changes.

[0007] In the technology described in Patent Document 1, the image data captured by the camera is processed to recognize the electrical equipment, but there is no consideration of processing the image data to recognize the object in the case of an environmental change from a bright place to a dim place or from a dim place to a bright place.

[0008] Therefore, in the technology described in Patent Document 1, it is difficult to determine the opening and closing state of the landing door, and it is not suitable for maintenance work of the elevator. In addition, there is no consideration of giving a warning to the worker in the state where the landing door is open.

[0009] Patent Document 1: Japanese Patent Application Publication No. 2019-187146 SUMMARY

[0010] An object of the present application is to provide an elevator work assistance system and a work assistance method that grasp the opening and closing state of the landing door of the elevator and give a warning to the worker.

[0011] To achieve the object, the present application provides an elevator work assistance system that assists in maintenance work of an elevator, the elevator work assistance system including: an image acquisition device configured to capture an image; and an information processing device configured to process the image, the information processing device analyzing the image captured by the image acquisition device, recognizing a landing door based on image data obtained by the analysis, determining that a worker has unlocked the landing door from an elevator hall side based on upward movement and downward movement of the image data obtained by the analysis after the worker has unlocked the landing door from the elevator hall side, determining that the worker has opened the landing door from the elevator hall side in a case where the brightness of the image data obtained by the analysis has changed and the brightness has decreased, and giving a warning.

[0012] According to the present application, it is possible to provide an elevator work assistance system and a work assistance method that grasp the opening and closing state of the landing door of the elevator and give a warning to the worker. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a schematic configuration view of an elevator related to Embodiment 1 of the present application.

[0014] Figure 2 is a schematic configuration view of a work assistance system 100 of an elevator related to Embodiment 1 of the present application.

[0015] Figure 3 is a view showing the internal structure of Figure 2 .

[0016] Figure 4 is a worker action flowchart showing the steps for working above the car 2 of the elevator 1.

[0017] Figure 5 is a flowchart showing the processing contents of the work assisting system 100 of the elevator according to Embodiment 1 of the present application.

[0018] Figure 6 is a view showing the state in which the worker 16 moves in front of the landing door 10 of the elevator lobby 22.

[0019] Figure 7 is a view showing the state in which the worker 16 looks upward in the vicinity of the landing door in order to unlock the landing door 10 by the dedicated key.

[0020] Figure 8 is a view showing the state in which the worker 16 looks forward after unlocking the landing door 10 by the dedicated key.

[0021] Figure 9 is a view showing the state in which the worker 16 opens the landing door 10 and emits the sound alert 21 (warning) from the sound section 134.

[0022] Figure 10 is a flowchart showing the contents of the automatic recording of the work assisting system 100 of the elevator according to Embodiment 2 of the present application.

[0023] Figure 11 is a view showing the state in which the worker 16 gets on the car 2 from above.

[0024] Figure 12 is a view showing the state in which the worker 16 moves from above the car 2 to the elevator lobby.

[0025] Explanation of Reference Numerals

[0026] 1...elevator, 2...car, 3...hoistway, 4...suspender, 5...hoisting machine, 6...control panel, 7...counterweight, 8...bumper, 9...pit, 10...landing door, 11...top equipment, 12...image taking device, 13...information processing terminal, 14...Internet, 15...data server, 16...worker, 17...safety guard, 18...car top plate, 19...image taking range, 21...sound alert, 22...elevator lobby, 100...work assisting system of elevator, 121...operation section, 122...image taking section, 123...communication section, 131...communication section, 132...analysis section, 133...determination section, 134...sound section, 135...control section. DETAILED DESCRIPTION

[0027] Hereinafter, the embodiments of the present application will be described with reference to the drawings. The same reference numerals are applied to the same constituent elements, and the same description will not be repeated.

[0028] The various constituent elements of the present application do not necessarily need to exist independently, and one constituent element can be composed of a plurality of components, a plurality of constituent elements can be composed of one component, one constituent element can be a part of another constituent element, a part of one constituent element can be duplicated with a part of another constituent element, and the like.

[0029] [Embodiment 1]

[0030] Figure 1 is a schematic configuration diagram of an elevator of Embodiment 1 of the present application. The elevator 1 is configured of a car 2, a hoistway 3 in which the car 2 ascends and descends, a hoist machine 5 that drives a hoisting rope 4, a control panel 6 that controls the elevator, a counterweight 7 that is connected to the car 2 by the hoisting rope 4, a pit 9 in which a buffer 8 that sets the car 2 and the counterweight 7 is provided, a landing door 10 of an elevator hall provided at each floor, a head device 11 of a pulley, and the like.

[0031] Next, an operation assisting system of the elevator that assists a maintenance operation of the elevator performed by an operation staff is described. Figure 2 is a schematic configuration diagram of an operation assisting system 100 of the elevator related to Embodiment 1 of the present application.

[0032] The operation assisting system 100 of the elevator is configured of an image acquisition device 12 that captures an image, an information processing terminal 13 (information processing device) that processes and saves the image acquired by the image acquisition device 12, and a data server 15 that is connected to the information processing terminal 13 through the Internet 14.

[0033] The image acquisition device 12 is, for example, a wearable camera or a smartphone, and is used by an operation staff 16 wearing it on the head (a helmet).

[0034] The information processing terminal 13 is connected to the image acquisition device 12 by wired or wireless means. The information processing terminal 13 is connected to the data server 15 through the Internet 14.

[0035] In the data server 15, image data obtained by analyzing a previously captured image and a result of determination are saved.

[0036] Figure 3 is a diagram showing the internal structure of Figure 2 . The image acquisition device 12 is configured of an operation section 121 for the operation of the operation staff, an image acquisition section 122 for acquiring an image, and a communication section 123 for communication with the information processing terminal 13. In addition, although not shown, a central processing device and a storage device that stores a program for controlling each device are provided in the image acquisition device 12, and the central processing device executes each process according to the program stored in the storage device in accordance with the operation of the operation section 121.

[0037] The information processing terminal 13 is configured of a communication section 131 for connecting with the image taking apparatus 12 or the Internet 14, an analysis section 132 for analyzing the image transmitted from the image taking apparatus 12 all the time, a determination section 133 for determining the image data analyzed by the analysis section 132, a sound section 134 for giving a warning according to the result of the determination section 133, and a control section 135 for remotely operating the image taking apparatus 12 according to the result of the determination section 133. The analysis section 132, the determination section 133, and the control section 135 are provided with a central processing device, a storage device storing a program for controlling each device, and the central processing device executes each process according to the program stored in the storage device.

[0038] The work assisting system of the elevator turns on the power supply via the operation section 121, and when the image taking apparatus 12 is activated, the information processing terminal 13 is also activated and starts the communication all the time. The image taken by the image taking apparatus 12 is transmitted to the information processing terminal 13 and analyzed by the analysis section 132.

[0039] Next, the steps for working above the car 2 are explained. Figure 4 is a workman movement flowchart showing the steps for working above the car 2 of the elevator 1.

[0040] The workman 16 (refer to Figure 6 ) goes to the site where the planned work is performed, and prepares the image taking apparatus 12 and the information processing terminal 13 at the site. The workman 16 wears the image taking apparatus 12 on the head (helmet) and installs the information processing terminal 13 on the upper body. The installation method is fixed by a clip or the like (step S10).

[0041] After the installation is completed, the workman 16 turns on the power supply of the image taking apparatus 12. When the power supply is turned on to the image taking apparatus 12, the information processing terminal 13 is activated at the same time and starts the communication (step Sll).

[0042] After the power supply of the image taking apparatus 12 is turned on, the workman 16 moves to the front of the landing door 10 of the elevator 1 where the work is performed (step S12).

[0043] The workman 16 inserts a dedicated key into a keyhole provided at the upper portion of the landing door 10 and unlocks the landing door 10 in order to unlock the landing door 10 (step S13).

[0044] After the landing door 10 is unlocked, the workman 16 confirms whether it is a position to board the car 2, and if it is the position to board the car 2, the landing door 10 is fully opened and a safety rope is installed at an arbitrary position above the car 2, and the workman 16 boards above the car 2 (step S14).

[0045] After the worker 16 has completely boarded the car 2, the worker 16 locks the landing door 10 from above the car 2 (the side of the hoistway 3) to prevent intrusion by a third party (step S15).

[0046] The worker 16 performs the work planned above the car 2 (step S16).

[0047] The worker 16 ends the work planned above the car 2 (step S17).

[0048] After the work is ended, the worker 16 unlocks from above the car 2 (the side of the hoistway 3) and opens the landing door 10 (step S18).

[0049] The worker 16 moves from above the car 2 to the elevator lobby (step S19).

[0050] The worker 16 closes the landing door 10 and locks from the side of the elevator lobby (step S20).

[0051] After the work planned is completed, the worker 16 turns off the power of the image acquisition device 12 (step S21).

[0052] Through the above procedure, the worker 16 performs the maintenance work of the elevator.

[0053] Next, the use Figures 5 to 9 The process for giving a warning to the worker 16 when the worker 16 performs the maintenance work of the elevator will be described.

[0054] Figure 5 is a flowchart showing the contents of the process of the work assistance system 100 of the elevator according to Embodiment 1 of the present application. Figure 6 is a view showing the state of the worker 16 moving in front of the landing door 10 of the elevator lobby 22. Figure 7 is a view showing the state of the worker 16 looking upward near the landing door 10 in order to unlock the landing door 10 with the dedicated key. Figure 8 is a view showing the state of the worker 16 looking forward after unlocking the landing door 10 with the dedicated key. Figure 9 is a view showing the state of the worker 16 opening the landing door 10 and giving a sound alert 21 (warning) from the sound portion 134.

[0055] When the worker 16 completes the preparation of the image acquisition device 12 and the information processing terminal 13 (step S10 of Figure 4 ), the worker 16 turns on the power of the image acquisition device 12. When the power is turned on to the image acquisition device 12, the information processing terminal 13 is simultaneously activated and starts communication (step S11).

[0056] The image acquisition device 12 continuously sends the captured images to the information processing terminal 13 (step S102).

[0057] The analysis unit 132 of the information processing terminal 13 analyzes the saturation, brightness, and image elements based on the received image (step S103). The analysis unit 132 sends the image data obtained from the image analysis to the determination unit 133.

[0058] The determination unit 133 compares the image data related to saturation, brightness, and image elements analyzed by the analysis unit 132 with the work plan and the image data related to saturation, brightness, and image elements at the site stored in the data server 15, and estimates the location of the photographed landing door 10 (the location where the operator 16 is located) (step S104). For example, the data server 15 stores work plans indicating the content of maintenance work or the location of the building where maintenance work is performed, as well as image data obtained by analyzing the saturation, brightness, and image elements of the customer's site based on pre-captured images. When the operator 16 takes a picture of the site, the determination unit 133 compares the image data analyzed by the analysis unit 132 with the image data stored in the data server 15, and estimates the location (floor) in front of the landing door where the operator 16 is located based on the comparison result. With this configuration, the sound unit 134 does not issue warnings when not needed. The analysis unit 132 always sends the analysis results (image data) to the determination unit 133.

[0059] like Figure 6 As shown, when the operator 16, equipped with the image acquisition device 12 and the information processing terminal 13, moves to the landing door 10 in the elevator lobby 22, the determination unit 133 compares the image data acquired by the image acquisition device 12 and analyzed by the analysis unit 132 with the image data stored in the data server 15 to determine whether the landing door 10 has been identified (step S105). The landing door 10 referred to here is a landing door located in the determined area. If the landing door 10 is identified (yes in step S105), the process proceeds to step S106. If the landing door 10 is not identified (no in step S105), the operation of step S105 is repeated.

[0060] Next, the determination unit 133 determines whether the operator 16 is facing upwards (step S106). For example... Figure 7As shown, when worker 16 approaches landing door 10, worker 16 faces upwards in order to unlock landing door 10 with a special key. When worker 16 faces upwards, the image captured by image acquisition device 12 flows upwards, and the image data analyzed by analysis unit 132 also flows downwards. Therefore, determination unit 133 detects that the image data is flowing upwards and determines that worker 16 is facing upwards (yes in step S106), proceeding to step S107. If the image data is not flowing upwards (no in step S106), determination unit 133 repeats the operation of step S106.

[0061] Additionally, when it is determined that the worker 16 is facing upwards, an inertial sensor (detection unit) such as an accelerometer or gyroscope can be included in the image acquisition device 12, and the worker 16 can be determined to be facing upwards based on the result of the inertial sensor. To improve detection accuracy, it is preferable to include multiple inertial sensors such as accelerometers and gyroscopes in the image acquisition device 12, but one is also acceptable.

[0062] Next, the determination unit 133 determines whether the operator 16 is facing forward (step S107). For example... Figure 8 As shown, after unlocking the landing door 10 with a special key, the operator 16 faces forward. If the operator 16 faces forward, the image captured by the image acquisition device 12 flows downward, and the image data analyzed by the analysis unit 132 also flows downward. Therefore, the determination unit 133 detects that the image data is flowing downward and determines that the operator 16 is facing forward (yes in step S107), proceeding to step S108. In steps S106 and S107, the determination unit 133 analyzes the image data and determines, based on the movement of the image data (upward movement and downward movement), that the operator 16 unlocked the landing door 10 from the elevator hall 22 side.

[0063] When the landing door 10 is unlocked using a dedicated key, a portion of the landing door 10 opens. If the image data does not flow downwards (No in step S107), the analysis unit 132 repeats the operation of step S107. Alternatively, when it is determined that the worker 16 is facing forward, an inertial sensor (detection unit) such as an accelerometer or gyroscope can be included in the image acquisition device 12, and the worker 16 is determined to be facing forward based on the result of this inertial sensor. To improve detection accuracy, multiple inertial sensors such as accelerometers and gyroscopes are preferably included in the image acquisition device 12, but a single one is also acceptable.

[0064] Next, the determination section 133 determines whether the image taken by the image taking device 12 is darkened, and whether the brightness of the image data analyzed by the analysis section 132 is partially decreased (darkened) (step S108). When the operator 16 opens the landing door 10, the inside of the hoistway 3 enters the image taking range 19, and the image taken by the image taking device 12 is darkened, and the brightness of the image data analyzed by the analysis section 132 is partially decreased (= darkened). The determination section 133 proceeds to step S109 if it determines that the brightness of the image data is partially decreased (Yes in step S108). The determination section 133 repeats the process of step S108 if it determines that the brightness of the image data is not changed (No in step S108).

[0065] Next, the determination section 133 determines whether the image taken by the image taking device 12 is darkened, and whether the brightness of the image data analyzed by the analysis section 132 is partially decreased (darkened) (step S108). When the operator 16 opens the landing door 10, the inside of the hoistway 3 enters the image taking range 19, and the image taken by the image taking device 12 is darkened, and the brightness of the image data analyzed by the analysis section 132 is partially decreased (= darkened). The determination section 133 proceeds to step S109 if it determines that the brightness of the image data is partially decreased (Yes in step S108). The determination section 133 repeats the process of step S108 if it determines that the brightness of the image data is not changed (No in step S108). Figure 9 As shown in FIG. 6, when the operator 16 slowly opens the landing door 10, the image taken in the image taking range 19 is darkened slowly.

[0066] In a case where the image taken by the image taking device 12 is darkened slowly, and the brightness of the image data analyzed by the analysis section 132 is changed, and the brightness is decreased slowly (Yes in step S109), the determination section 133 presumes that the operator 16 has opened the landing door 10 from the elevator hall (landing) side, and the sound alarm 21 is emitted from the sound section 134 in order to perform safety confirmation to the operator 16. The content of the warning can be, for example, a warning with a voice such as "Please confirm whether the car has arrived" or a warning with a sound of a buzzer or the like.

[0067] It is preferable that the operator 16 opens the landing door 10 slowly. In a case where the operator 16 opens the landing door 10 quickly, the determination section 133 can also emit a warning from the sound section 134. The content of the warning can be, for example, a warning with a voice such as "Please open the door slowly" or a warning with a sound of a buzzer or the like.

[0068] The determination section 133 repeats the process of step S109 if it determines that the brightness of the image data is not changed (No in step S109).

[0069] According to Embodiment 1, it is determined whether the landing door 10 is opened based on the change in the brightness of the image data taken by the image taking device 12, and the operator 16 is warned in a case where the landing door 10 is opened, so it is possible to ensure the safety of the operator 16 at the time of maintenance work of the elevator.

[0070] [Embodiment 2]

[0071] Next, the brightness of the image data taken by the image taking device 12 is analyzed by the analysis section 132 (step S201). The determination section 133 determines whether the image taken by the image taking device 12 is darkened, and whether the brightness of the image data analyzed by the analysis section 132 is partially decreased (darkened) (step S202). When the operator 16 opens the landing door 10, the inside of the hoistway 3 enters the image taking range 19, and the image taken by the image taking device 12 is darkened, and the brightness of the image data analyzed by the analysis section 132 is partially decreased (= darkened). The determination section 133 proceeds to step S203 if it determines that the brightness of the image data is partially decreased (Yes in step S202). The determination section 133 repeats the process of step S202 if it determines that the brightness of the image data is not changed (No in step S202). Figures 10 to 12 Embodiment 2 of the present application will be described.Figure 10 is a flowchart showing the contents of automatic recording of the work assistance system 100 of the elevator according to Embodiment 2. The same reference numerals are assigned to the same structures as those of Embodiment 1, and detailed description thereof is omitted.

[0072] As explained in Embodiment 1, the worker 16 wears the image taking device 12 on the head (helmet) and installs the information processing terminal 13 on the upper body. The maintenance work of the elevator needs to be reserved as the recorded data, but if the worker 16 forgets the operation of starting the recording of the image taking device 12, the contents of the maintenance work cannot be recorded. In addition, if the worker forgets the operation of stopping the recording, unnecessary recorded data can be accumulated. Therefore, in Embodiment 2, the operation of starting / stopping the recording of the image taking device 12 is automatically performed.

[0073] When the worker 16 completes the preparation of the image taking device 12 and the information processing terminal 13 (step S10 of Figure 4 ), the worker 16 turns on the power of the image taking device 12. When the power is turned on to the image taking device 12, the information processing terminal 13 is simultaneously activated and starts the communication (step S201).

[0074] The image taking device 12 always transmits the taken image to the information processing terminal 13 (step S202).

[0075] The analysis section 132 of the information processing terminal 13 analyzes the saturation, the brightness, and the image elements from the received image (step S203). The analysis section 132 transmits the image data obtained by analyzing the image to the determination section 133.

[0076] The determination section 133 compares the image data related to the saturation, the brightness, and the image elements analyzed by the analysis section 132 and the image data related to the saturation, the brightness, and the image elements of the site corresponding to the work plan saved in the data server 15, and estimates the site where the worker 16 is present (step S204).

[0077] In addition, the processes from step S201 to step S204 are the same as those of steps S11 to S104 of Figure 5 .

[0078] Next, the determination section 133 determines whether the brightness of the entire image data decreases and the linear portion increases (step S205). The determination of step S205 is explained using FIG. 8. Figure 11

[0079] Figure 11 ​is a graph indicating a state in which the worker 16 is on the top of the car 2. When the worker 16 opens the landing door 10 from the elevator lobby 22 side, the brightness in the image-capturing range 19 of the image-capturing device 12 gradually decreases. Further, if the landing door 10 is fully opened, the entire image captured by the image-capturing device 12 becomes dark, and the brightness of the entire image data analyzed by the analysis section 132 decreases. Furthermore, the sling 4 that is hooked to the car 2, the safety guard 17 provided above the car 2 to prevent the worker from falling, the guide rail (not shown) that guides the lift of the car 2, and the like are present above the car 2, and the image-capturing device 12 captures images of these. The sling 4, the safety guard 17, and the guide rail are linearly arranged. The analysis section 132 analyzes the images in which the sling 4, the safety guard 17, and the guide rail are captured, and detects the linear component 23. In the detection of the linear component 23, it is not necessary that the linear component be the entire sling 4, safety guard 17, and guide rail, but it is sufficient that at least a part of the linear component be detected.

[0080] When the brightness of the entire image data decreases and the detected linear component 23 increases (YES in step S205), the determination section 133 determines that the worker 16 is present in the lift passage 3, and transmits an instruction to start recording to the control section 135. The control section 135 receives the instruction to start recording from the determination section 133, and starts recording by the image-capturing device 12 via the operation section 121 of the image-capturing device 12 (step S206). When the brightness of the entire image data does not change (NO in step S205), the determination section 133 repeats the process of step S205.

[0081] When the maintenance work of the elevator is completed, the worker 16 moves from above the landing door 10 to the elevator lobby 22. Figure 12 is a graph indicating a state in which the worker 16 moves from above the car 2 to the elevator lobby.

[0082] When the maintenance work of the elevator is completed, the worker 16 moves from above the car 2 to the elevator lobby.

[0083] In the analysis section 132, the image data analyzed by analyzing the image captured by the image pickup device 12 is analyzed, and in the case where the brightness of the analyzed image data is rising, the determination section 133 determines that the worker 16 has opened the landing door 10 from the side of the hoistway 3. Further, in the case where the determination section 133 determines that the brightness of the entire image data is rising and the straight line component 23 is decreasing (YES in step S207), it is determined that the worker 16 has moved from the hoistway 3 to the lobby 22, and the control section 135 is sent an instruction to stop the recording. The control section 135 receives the instruction to stop the recording from the determination section 133, and causes the image pickup device 12 to stop the recording via the operation section 121 of the image pickup device 12 (step S208). In the case where the determination section 133 determines that the brightness of the entire image data is not changing (NO in step S205), the processing of step S207 is repeated. That is, the image pickup device 12 continues the recording.

[0084] The image captured by the image pickup device 12 is forwarded to the data server 15, and registered as a log of the work plan database.

[0085] In the embodiment 2, the recording of the image pickup device 12 is started / stopped in the case where the brightness of the image data is changing from a bright state to a dark state and the brightness of the image data is changing from a dark state to a bright state.

[0086] According to the embodiment 2, the image pickup device 12 automatically starts the recording in accordance with the action of the worker 16, and thus it is possible to suppress the forgetting of the recording of the maintenance work of the elevator. Further, since the image pickup device 12 automatically stops the recording in accordance with the action of the worker 16, it is possible to suppress the accumulation of unnecessary recording data.

[0087] Further, the present application is not limited to the described embodiments, but includes various modifications. For example, the described embodiments are examples in which the description is explained in detail in order to easily understand the present application, and are not limited to necessarily having all the structures explained. The structures can be appropriately combined, or the order of the processing can be changed, or omitted without performing the predetermined processing, or appropriately changed, within the scope of not changing the gist of the present application.

Claims

1. An operation assisting system of an elevator that assists a maintenance work of the elevator, characterized by comprising: an image taking device that takes an image; and an information processing device that processes the image, wherein the information processing device analyzes the image taken by the image taking device, recognizes a landing door based on image data analyzed, determines that a worker has unlocked the landing door from a hall side after a movement in an upward direction and a movement in a downward direction of the image data analyzed, determines that the worker has opened the landing door from the hall side when a luminance of the image data analyzed has changed, and issues a warning.

2. The operation assisting system of the elevator according to claim 1, characterized in that the information processing device analyzes the image taken by the image taking device, determines that a worker has opened a landing door from a hoistway side when a luminance of image data analyzed has changed.

3. The operation assisting system of the elevator according to claim 2, characterized in that the information processing device analyzes the image taken by the image taking device, detects at least any one of a linear component of a safety guard provided above a car, a sling that suspends the car, and a guide rail that guides a movement of the car, determines that the worker is in the hoistway when the luminance has decreased and a detection amount of the linear component has increased, and transmits an instruction to start recording to the image taking device.

4. The operation assisting system of the elevator according to claim 3, characterized in that the information processing device determines that the worker has moved from the hoistway to the hall when the luminance has increased and the detection amount of the linear component has decreased, and transmits an instruction to stop recording to the image taking device.

5. The operation assisting system of the elevator according to claim 1, characterized by comprising a data server that stores image data obtained by analyzing an image taken in advance, wherein the information processing device analyzes the image taken by the image taking device, compares the image data analyzed with the image data stored in the data server, and estimates a location of the landing door based on a result of the comparison.

6. An operation assisting method of an elevator that assists a maintenance work of the elevator, characterized by comprising: analyzing an image taken, recognizing a landing door based on image data analyzed, determining that a worker has unlocked the landing door from a hall side after a movement in an upward direction and a movement in a downward direction of the image data analyzed, determining that the worker has opened the landing door from the hall side when a luminance of the image data analyzed has changed, and issuing a warning. ​ ​ ​ ​ ​ ​ ​ ​ ​

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