Elevator work support system and work support method

Abstract

To provide a system to grasp the opening / closing state of an elevator landing door and to issue an alarm to workers.SOLUTION: An elevator work support system of the present invention comprises a video acquisition device 12 to capture a video and an information processing terminal 13 to process the video. The information processing terminal 13 analyzes the video captured by the video acquisition device 12 using an analyzing part 132. A determination part 133 recognizes a landing door 10 from the analyzed image data and determines that a worker 16 opens the landing door 10 from the side of the elevator hall 22 and issues the alarm from a sound part 134 when the analyzed image data brightness changes and decreases after the determination part determines from the upward and the downward movements of the analyzed image data that the worker 16 unlocks the landing door 10 from the side of an elevator hall 22.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an elevator work support system and work support method for supporting maintenance work of an elevator. [Background technology]

[0002] An elevator is configured such that a main rope is hung from a hoist installed at the top or bottom of the elevator shaft, a car is hung from one end of the main rope and a counterweight is hung from the other end, and the hoist is driven to wind up the main rope, so that the car and counterweight rise and fall in the elevator shaft like a bucket.

[0003] Elevators undergo regular maintenance work. Maintenance work on elevators requires workers to get on top of the car to access the equipment located at the top of the elevator shaft and the control panel located at the bottom to perform their work. When workers get on top of the car, they must open the landing door and check the car's position, attach a safety rope to prevent falling, and also record the usage history using a wearable camera. Since it is dark inside the elevator shaft, it is difficult to check the car's position. If a worker gets on the car without fully checking the car's position, there is a risk of falling, so a means of warning the worker is required.

[0004] As a means for alerting workers, for example, there is a technology described in Patent Document 1. Patent Document 1 discloses a technology that includes an electric power station monitoring device that collects open / closed states or operating / non-operating states of a plurality of pieces of electric equipment to generate open / closed state / operating / non-operating state information, a server that generates charging / stopping information related to the electric equipment based on the open / closed state / operating / non-operating state information acquired from the electric power station monitoring device, and a camera, and generates a warning image showing the charging state of the electric equipment photographed by the camera based on the charging / stopping state information acquired from the server, and displays the warning image on a wearable device worn by the worker. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2019-187146 A Summary of the Invention [Problem to be solved by the invention]

[0006] Elevator maintenance work involves a process of opening the hall door from the elevator hall side when a worker enters the car, and a process of opening the hall door from the hoistway side when a worker descends from the car into the elevator hall.

[0007] When a camera photographs the process of opening the landing doors from the elevator hall side, the camera photographs a dark place from a bright place. On the other hand, when a camera photographs the process of opening the landing doors from the hoistway side, the camera photographs a bright place from a dark place. In this way, the environment photographed by the camera changes during elevator maintenance work.

[0008] The technology described in Patent Document 1 processes image data captured by a camera to identify electrical equipment, but does not take into consideration the processing of image data to identify objects in changing environmental conditions, such as when moving from a bright place to a dark place or from a dark place to a bright place.

[0009] For this reason, the technology described in Patent Document 1 has difficulty in determining whether the landing door is open or closed, and is not suitable for elevator maintenance work. In addition, no consideration was given to issuing a warning to an operator when the landing door is open.

[0010] An object of the present invention is to provide an elevator work support system and work support method that detects the open / closed state of an elevator hall door and issues a warning to an operator. [Means for solving the problem]

[0011] In order to achieve the above object, the present invention provides an elevator maintenance work support system, comprising: It is attached to the worker's head, The information processing device analyzes the image captured by the image capturing device, recognizes a landing door from the analyzed image data, and determines whether a worker can move from the elevator hall side to the landing door from the upward and downward movements of the analyzed image data. Insert the key into the keyhole at the top of the After determining that the door is unlocked, the brightness of the analyzed image data changes, and if the brightness decreases, it is determined that an operator is opening the landing door from the elevator hall side, and a warning is issued. Effect of the Invention

[0012] According to the present invention, it is possible to provide an elevator work support system and work support method that grasps the open / closed state of an elevator hall door and issues a warning to an operator. [Brief description of the drawings]

[0013] [Figure 1] 1 is a schematic configuration diagram of an elevator according to a first embodiment of the present invention. [Diagram 2] 1 is a schematic configuration diagram of an elevator operation support system 100 according to a first embodiment of the present invention. [Diagram 3] FIG. 3 is a diagram showing the internal structure of FIG. 2. [Figure 4] 1 is a worker action flowchart showing the procedure for working on top of the car 2 of the elevator 1. [Diagram 5] 3 is a flowchart showing the processing contents of the elevator operation support system 100 according to the first embodiment of the present invention. [Figure 6] 1 is a diagram showing a state in which a worker 16 moves in front of the landing door 10 in the elevator hall 22. FIG. [Figure 7] 13 is a diagram showing a state in which a worker 16 approaches the landing door 10 and looks up to unlock the landing door 10 with a special key. [Figure 8]1 is a diagram showing a state in which an operator 16 faces forward after unlocking the landing door 10 with a dedicated key. [Figure 9] 13 is a diagram showing a state in which an operator 16 opens the landing door 10 and an audio alert 21 (warning) is issued from an audio unit 134. FIG. [Figure 10] 10 is a flowchart showing the contents of automatic recording by the elevator work support system 100 according to the second embodiment of the present invention. [Figure 11] 1 is a diagram showing a state in which a worker 16 gets on top of the car 2. FIG. [Figure 12] 1 is a diagram showing a state in which a worker 16 moves from above the car 2 to the elevator hall. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Like elements are given like reference numerals and similar descriptions will not be repeated.

[0015] The various components of the present invention do not necessarily have to be independent entities, and it is permitted that one component is made up of multiple members, that multiple components are made up of one member, that one component is part of another component, or that part of one component overlaps with part of another component. EXAMPLES

[0016] Fig. 1 is a schematic diagram of an elevator according to a first embodiment of the present invention. The elevator 1 is composed of a car 2, a hoistway 3 along which the car 2 ascends and descends, a hoist 5 that drives a rope 4, a control panel 6 that controls the elevator, a counterweight 7 connected to the car 2 by the rope 4, a pit 9 in which a shock absorber 8 for the car 2 and the counterweight 7 is installed, a landing door 10 installed in the elevator hall on each floor, and top equipment 11 such as a pulley.

[0017] Next, an elevator work support system for supporting elevator maintenance work performed by a worker will be described. Fig. 2 is a schematic configuration diagram of an elevator work support system 100 according to a first embodiment of the present invention.

[0018] The elevator work support system 100 is composed of an image capture device 12 for capturing images, an information processing terminal 13 (information processing device) for processing and storing the images captured by the image capture device 12, and a data server 15 connected to the information processing terminal 13 via the Internet 14.

[0019] The image capture device 12 is, for example, a wearable camera or a smartphone, and is used by a worker 16 by wearing it on his / her head (helmet).

[0020] The information processing terminal 13 is connected to the image capturing device 12 by wire or wirelessly. The information processing terminal 13 is connected to a data server 15 via the Internet 14.

[0021] The data server 15 stores image data obtained by analyzing previously captured images and the results of judgment.

[0022] Fig. 3 is a diagram showing the internal structure of Fig. 2. Video acquisition device 12 is composed of an operation unit 121 operated by an operator, an image acquisition unit 122 for acquiring images, and a communication unit 123 for communicating with information processing terminal 13. Although not shown, video acquisition device 12 is provided with a central processing unit and a storage device that stores programs for controlling each device, and in response to the operation of operation unit 121, the central processing unit executes each process according to the programs stored in the storage device.

[0023] The information processing terminal 13 is composed of a communication unit 131 for connecting to the image capturing device 12 and the Internet 14, an analysis unit 132 for analyzing images constantly transmitted from the image capturing device 12, a judgment unit 133 for judging the image data analyzed by the analysis unit 132, a voice unit 134 for issuing a warning based on the result of the judgment unit 133, and a control unit 135 for remotely operating the image capturing device 12 based on the result of the judgment unit 133. The analysis unit 132, the judgment unit 133, and the control unit 135 are provided with a central processing unit and a storage device that stores programs for controlling each device, and the central processing unit executes each process according to the programs stored in the storage device.

[0024] When the elevator work support system is powered on via the operation unit 121 and the image capture device 12 starts up, the information processing terminal 13 also starts up and continuous communication begins. The image captured by the image capture device 12 is transmitted to the information processing terminal 13 and analyzed by the analysis unit 132.

[0025] Next, a procedure for working on the car 2 will be described. Fig. 4 is a worker action flowchart showing the procedure for working on the car 2 of the elevator 1.

[0026] A worker 16 (see FIG. 6) goes to the site where the planned work is to be performed and prepares the image acquisition device 12 and the information processing terminal 13 at the site. The worker 16 puts the image acquisition device 12 on his head (helmet) and attaches the information processing terminal 13 to the upper half of his body. The attachment method is to fix them with clips or the like (step S10).

[0027] After completing the installation, the worker 16 turns on the power of the image capturing device 12. When the power of the image capturing device 12 is turned on, the information processing terminal 13 is simultaneously started up and starts communication (step S11).

[0028] After turning on the power of the image capturing device 12, the worker 16 moves to the front of the landing door 10 of the elevator 1 where the work is to be performed (step S12).

[0029] To unlock the landing door 10, the worker 16 inserts a special key into a keyhole at the top of the landing door 10 to unlock it (step S13).

[0030] After unlocking the landing door 10, the worker 16 checks whether the worker is in a position to board the car 2, and if the worker is in a position to board the car 2, the worker fully opens the landing door 10, attaches a lifeline to any position above the car 2, and gets on top of the car 2 (step S14).

[0031] After the worker 16 has completely climbed onto the car 2, he / she locks the landing door 10 from above the car 2 (the elevator shaft 3 side) to prevent a third party from entering (step S15).

[0032] The worker 16 performs the work on the car 2 according to the plan (step S16).

[0033] The worker 16 finishes the planned work on the car 2 (step S17).

[0034] After completing the work, the worker 16 unlocks the car 2 from above (the elevator shaft 3 side) and opens the landing door 10 (step S18).

[0035] The worker 16 moves from the top of the elevator car 2 to the elevator hall (step S19).

[0036] The worker 16 closes the hall door 10 and locks it from the elevator hall side (step S20).

[0037] After completing the planned work, the worker 16 turns off the power to the image capturing device 12 (step S21).

[0038] Following the above steps, the worker 16 performs the elevator maintenance work.

[0039] Next, a process for warning the worker 16 when the worker 16 performs maintenance work on the elevator will be described with reference to Figs. 5 to 9.

[0040] Fig. 5 is a flowchart showing the processing contents of the elevator work support system 100 according to the first embodiment of the present invention. Fig. 6 is a diagram showing a state in which the worker 16 moves in front of the landing door 10 in the elevator hall 22. Fig. 7 is a diagram showing a state in which the worker 16 approaches the landing door 10 and faces up to unlock the landing door 10 with a dedicated key. Fig. 8 is a diagram showing a state in which the worker 16 faces forward after unlocking the landing door 10 with a dedicated key. Fig. 9 is a diagram showing a state in which the worker 16 opens the landing door 10 and issues a voice alert 21 (warning) from the audio unit 134.

[0041] When the worker 16 has completed preparation of the image capturing device 12 and the information processing terminal 13 (step S10 in FIG. 4), the worker 16 turns on the power of the image capturing device 12. When the power of the image capturing device 12 is turned on, the information processing terminal 13 also starts up at the same time and starts communication (step S11).

[0042] The image capturing device 12 constantly transmits the captured image to the information processing terminal 13 (step S102).

[0043] The analysis unit 132 of the information processing terminal 13 analyzes the saturation, brightness, and image elements of the received video (step S103). The analysis unit 132 transmits image data obtained by analyzing the video to the determination unit 133.

[0044] The determination unit 133 compares the image data regarding the saturation, brightness, and image elements analyzed by the analysis unit 132 with the work plan stored in the data server 15 and the image data regarding the saturation, brightness, and image elements of the work site, and estimates the location of the landing door 10 being photographed (the location of the worker 16) (step S104). For example, the data server 15 stores a work plan indicating the contents of the maintenance work and the location of the building where the maintenance work is performed, and image data analyzed based on the saturation, brightness, and image elements of the work site based on the image of the customer work site that has been photographed in advance. When the worker 16 photographs the work 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 from the comparison result which location (which floor) of the building the worker 16 is in front of the landing door. This configuration prevents the audio unit 134 from issuing a warning or the like in unnecessary locations. The analysis unit 132 constantly transmits the analysis result (image data) to the determination unit 133.

[0045] As shown in Fig. 6, when the worker 16 equipped with the image capturing device 12 and the information processing terminal 13 moves in front of the landing door 10 in the elevator hall 22, the determination unit 133 compares the image data captured by the image capturing device 12 and analyzed by the analysis unit 132 with the image data stored in the data server 15, and determines whether or not the landing door 10 has been recognized (step S105). Note that the landing door 10 referred to here is the landing door installed at the specified location. If the landing door 10 has been recognized (Yes in step S105), the process proceeds to step S106. If the landing door 10 has not been recognized (No in step S105), the operation of step S105 is repeated.

[0046] Next, the determination unit 133 determines whether the worker 16 has looked up (step S106). As shown in Fig. 7, when the worker 16 approaches the landing door 10, the worker 16 looks up to unlock the landing door 10 with a dedicated key. When the worker 16 looks up, the image captured by the image capture device 12 flows upward, and the image data analyzed by the analysis unit 132 also flows downward. Therefore, the determination unit 133 detects that the image data has flowed upward, determines that the worker 16 has looked up (Yes in step S106), and proceeds to step S107. When the image data does not flow upward (No in step S106), the determination unit 133 repeats the operation of step S106.

[0047] Note that when determining that the worker 16 has looked up, the image capturing device 12 may be provided with an inertial sensor (detection means) such as an acceleration sensor or a gyro sensor, and it may be determined that the worker 16 has looked up based on the results of this inertial sensor. It is preferable to provide multiple inertial sensors such as acceleration sensors and gyro sensors in the image capturing device 12 to improve detection accuracy, but it may also be provided with one sensor.

[0048] Next, the determination unit 133 determines whether the worker 16 faces forward (step S107). As shown in FIG. 8, after unlocking the landing door 10 with a dedicated key, the worker 16 faces forward. When the worker 16 faces forward, the image captured by the image capture 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 flows downward, determines that the worker 16 faces forward (Yes in step S107), and proceeds to step S108. In steps S106 and S107, the determination unit 133 analyzes the image data, and determines that the worker 16 has unlocked the landing door 10 from the elevator hall 22 side based on the movement of the image data (upward movement and downward movement).

[0049] When the landing door 10 is unlocked with a dedicated key, a part of the landing door 10 opens. If the image data does not flow downward (No in step S107), the analysis unit 132 repeats the operation of step S107. Note that, when determining that the worker 16 faces forward, the image acquisition device 12 may be provided with an inertial sensor (detection means) such as an acceleration sensor or a gyro sensor, and it may be determined that the worker 16 faces forward based on the result of this inertial sensor. It is preferable that the image acquisition device 12 is provided with a plurality of inertial sensors such as an acceleration sensor or a gyro sensor in order to improve detection accuracy, but it may also be provided with one.

[0050] Next, the determination unit 133 determines whether the image captured by the image capturing device 12 has become darker and a part of the brightness of the image data analyzed by the analysis unit 132 has decreased (become darker) (step S108). When the worker 16 opens the landing door 10, the inside of the elevator shaft 3 enters the image capturing range 19, the image captured by the image capturing device 12 becomes darker, and a part of the brightness of the image data analyzed by the analysis unit 132 decreases (=becomes darker). If the determination unit 133 determines that a part of the brightness of the image data has decreased (Yes in step S108), the process proceeds to step S109. If the determination unit 133 determines that the brightness of the image data has not changed (No in step S108), the process repeats the process of step S108.

[0051] Next, the determination unit 133 determines whether the image captured by the image capturing device 12 gradually becomes darker and the brightness of the image data analyzed by the analysis unit 132 gradually decreases (the dark portion gradually becomes larger) (step S109). As shown in Fig. 9, when the worker 16 gradually opens the landing door 10, the image captured in the image capturing range 19 gradually becomes darker.

[0052] When the image captured by the image capture device 12 gradually becomes darker and the brightness of the image data analyzed by the analysis unit 132 changes and gradually decreases (Yes in step S109), the determination unit 133 presumes that the worker 16 is opening the landing door 10 from the elevator hall (landing) side, and issues a voice alert 21 from the audio unit 134 to request the worker 16 to check for safety. The content of the warning may be, for example, a voice such as "Please check if the elevator car has arrived" or a sound such as a buzzer.

[0053] It is preferable that the speed at which the worker 16 opens the landing door 10 is slow. When the worker 16 opens the landing door 10 too quickly, the determination unit 133 may be configured to issue a warning from the audio unit 134. The content of the warning may be, for example, a voice message such as "Please open the door slowly" or a sound such as a buzzer.

[0054] If the determination unit 133 determines that there is no change in the brightness of the image data (No in step S109), the process of step S109 is repeated.

[0055] According to the first embodiment, it is determined whether the landing door 10 is open or not from a change in brightness of the image data acquired by the image acquisition device 12, and if the landing door 10 is open, a warning is given to the worker 16, thereby ensuring the safety of the worker 16 during elevator maintenance work. EXAMPLES

[0056] Next, a second embodiment of the present invention will be described with reference to Fig. 10 to Fig. 12. Fig. 10 is a flowchart showing the contents of automatic recording of an elevator operation support system 100 according to the second embodiment of the present invention. The same components as those in the first embodiment are given the same reference numerals, and detailed descriptions thereof will be omitted.

[0057] As explained in the first embodiment, the worker 16 wears the image capturing device 12 on his head (helmet) and attaches the information processing terminal 13 to the upper half of his body. The elevator maintenance work needs to be recorded as recorded data, but if the worker 16 forgets to operate the image capturing device 12 to start recording, the contents of the maintenance work cannot be recorded. Also, if the worker forgets to operate the image capturing device 12 to stop recording, unnecessary recorded data will be accumulated. Therefore, in the second embodiment, the image capturing device 12 is configured to automatically start / stop recording.

[0058] When the worker 16 has completed preparation of the image capturing device 12 and the information processing terminal 13 (step S10 in FIG. 4), the worker 16 turns on the power of the image capturing device 12. When the power of the image capturing device 12 is turned on, the information processing terminal 13 also starts up at the same time and starts communication (step S201).

[0059] The image capturing device 12 constantly transmits the captured image to the information processing terminal 13 (step S202).

[0060] The analysis unit 132 of the information processing terminal 13 analyzes the saturation, brightness, and image elements of the received video (step S203). The analysis unit 132 transmits image data obtained by analyzing the video to the determination unit 133.

[0061] The determination unit 133 compares the image data regarding saturation, brightness, and image elements analyzed by the analysis unit 132 with image data regarding saturation, brightness, and image elements of the work site corresponding to the work plan stored in the data server 15, and estimates the location of the worker 16 (step S204).

[0062] The processes from step S201 to step S204 are similar to those from step S11 to step S104 in FIG.

[0063] Next, the determination unit 133 determines whether or not the brightness of the entire image data has decreased and the number of straight line portions has increased (step S205). The determination in step S205 will be described with reference to FIG.

[0064] FIG. 11 is a diagram showing a state in which a worker 16 gets on top of the elevator car 2. When the worker 16 starts to open the landing door 10 from the elevator hall 22 side, the brightness in the image acquisition range 19 of the image acquisition device 12 gradually decreases. Then, when the landing door 10 is fully opened, the entire image captured by the image acquisition device 12 becomes dark, and the overall brightness of the image data analyzed by the analysis unit 132 decreases. Furthermore, on the elevator car 2, there are a rope 4 that holds the elevator car 2, a safety fence 17 installed on the elevator car 2 to prevent the worker from falling, a guide rail (not shown) that guides the elevator car 2 to rise and fall, and the image acquisition device 12 captures images of these. The rope 4, the safety fence 17, and the guide rail are installed linearly. The analysis unit 132 analyzes the images of the rope 4, the safety fence 17, and the guide rail to detect the linear component 23. When detecting the straight line component 23, it is not necessary to detect all straight line components of the rope 4, the safety fence 17, and the guide rail, but it is sufficient to detect at least some of the straight line components.

[0065] When the determination unit 133 determines that the brightness of the entire image data has decreased and the detected linear components 23 have increased (Yes in step S205), it determines that the worker 16 is in the elevator 3 and transmits a command to start recording to the control unit 135. The control unit 135 receives the command to start recording from the determination unit 133 and starts recording of the image capturing device 12 via the operation unit 121 of the image capturing device 12 (step S206). When the determination unit 133 determines that there is no change in the brightness of the entire image data (No in step S205), it repeats the process of step S205.

[0066] When the elevator maintenance work is completed, the worker 16 moves from above the landing door 10 to the elevator hall 22. Fig. 12 is a diagram showing the state in which the worker 16 moves from above the car 2 to the elevator hall.

[0067] When the elevator maintenance work is completed, the worker 16 unlocks the key from the hoistway 3 side and starts gradually opening the landing door 10, the brightness in the image acquisition range 19 of the image acquisition device 12 gradually increases. Then, when the landing door 10 is fully opened, the entire image captured by the image acquisition device 12 becomes brighter, and the overall brightness of the image data analyzed by the analysis unit 132 increases. Furthermore, the rope 4 hanging the car 2, the safety fence 17 above the car 2 to prevent the worker from falling, and the guide rail (not shown) that guides the car 2 as it ascends and descends move out of the image acquisition range 19 of the image acquisition device 12. The analysis unit 132 detects a decreasing amount of the straight line component 23.

[0068] The analysis unit 132 analyzes the image captured by the image capturing device 12, and when the brightness of the analyzed image data changes and the brightness increases, the determination unit 133 determines that the worker 16 is opening the landing door 10 from the hoistway 3 side. Furthermore, when the determination unit 133 determines that the brightness of the entire image data has increased and the linear component 23 has decreased (Yes in step S207), it determines that the worker 16 has moved from the hoistway 3 to the elevator hall 22, and transmits an instruction to stop recording to the control unit 135. The control unit 135 receives the instruction to stop recording from the determination unit 133 and stops recording of the image capturing device 12 via the operation unit 121 of the image capturing device 12 (step S208). When the determination unit 133 determines that the brightness of the entire image data has not changed (No in step S205), it repeats the process of step S207. That is, the image capturing device 12 continues recording.

[0069] The images captured by the image capture device 12 are transferred to the data server 15 and registered as logs in the work plan database.

[0070] In the second embodiment, when the brightness of the image data changes from a bright state to a dark state, and when the brightness of the image data changes from a dark state to a bright state, the image capture device 12 starts and stops recording.

[0071] According to the second embodiment, it is possible to prevent forgetting to record the elevator maintenance work, since the image capturing device 12 automatically starts recording in response to the action of the worker 16. Also, it is possible to prevent unnecessary recorded data from being accumulated, since the image capturing device 12 automatically stops recording in response to the action of the worker 16.

[0072] The present invention is not limited to the above-mentioned embodiment, but includes various modifications. For example, the above-mentioned embodiment has been described in detail to make the present description easier to understand, and is not necessarily limited to those having all the configurations described. As long as the gist of the invention is not changed, the configurations can be appropriately combined, the order of processing can be changed, and certain processing can be omitted. [Explanation of symbols]

[0073] 1... elevator, 2... car, 3... elevator shaft, 4... rope, 5... hoist, 6... control panel, 7... counterweight, 8... buffer, 9... pit, 10... landing door, 11... top equipment, 12... image acquisition device, 13... information processing terminal, 14... Internet, 15... data server, 16... worker, 17... safety fence, 18... car top plate, 19... image acquisition range, 21... voice alert, 22... elevator hall, 100... elevator work support system, 121... operation unit, 122... image acquisition unit, 123... communication unit, 131... communication unit, 132... analysis unit, 133... judgment unit, 134... voice unit, 135... control unit

Claims

1. In an elevator maintenance support system, The system includes an image capture device that is worn on the head of a worker and captures images, and an information processing device that processes the images, The information processing device analyzes the image captured by the image acquisition device, recognizes a landing door from the analyzed image data, and determines from upward and downward movements of the analyzed image data that a worker is inserting a key into a keyhole at the top of the landing door from the elevator hall side to unlock it.If the brightness of the analyzed image data changes and the brightness decreases, the information processing device determines that a worker is opening the landing door from the elevator hall side and issues a warning. This is an elevator work support system.

2. In claim 1, The information processing device analyzes the image captured by the image capturing device, and when the brightness of the analyzed image data changes and the brightness increases, it determines that a worker is opening the landing door from the elevator shaft side.

3. In claim 2, The information processing device analyzes the image captured by the image capturing device, and detects at least any straight line components of a safety fence installed above a car, a rope for hanging the car, and a guide rail for guiding the car to ascend and descend, An elevator work support system characterized in that, when the brightness decreases and the detection amount of the straight line component increases, it is determined that a worker is in the elevator shaft, and a command to start recording is sent to the image acquisition device.

4. In claim 3, The elevator work support system is characterized in that, when the brightness increases and the detection amount of the straight line component decreases, the information processing device determines that the worker has moved from the elevator shaft to the elevator hall, and sends a command to the image acquisition device to stop recording.

5. In claim 1, Equipped with a data server that stores image data obtained by analyzing pre-recorded images, The information processing device analyzes the image captured by the image acquisition device, compares the analyzed image data with image data stored in the data server, and estimates the location of the landing door being photographed from the comparison result.

6. An elevator work support method for supporting elevator maintenance work, comprising: An elevator work support method comprising: analyzing an image captured by an image capture device attached to the head of an operator; recognizing a landing door from the analyzed image data; determining that the operator is inserting a key into a keyhole at the top of the landing door from the elevator hall side to unlock it from the upward and downward movements of the analyzed image data; and, if the brightness of the analyzed image data changes and the brightness decreases, determining that the operator is opening the landing door from the elevator hall side and issuing a warning.

Images