JP2019202860A - Attention attracting system for elevator - Google Patents

Abstract

To appropriately attract the attention of a user who will get on a car together with an object so as to in advance prevent collision of the object when the user gets on the car.SOLUTION: The attention attracting system for an elevator includes imaging means for photographing a predetermined range from the vicinity of a car door toward a landing direction when a car arrives at a landing, user detection means for detecting the presence/absence of a user who will get on the car by using a photographed image, door control means for controlling door opening/closing operation based on the detection result, determination means for determining whether or not a user will get on the car together with an object when the user who will get on the car is detected and determining whether or not the collision of the object is predicted when the user gets on the car in the case where it is determined that the user will get on the car together with the object, and warning means for outputting warning with respect to the user in the case where it is determined that the collision of the object is predicted when the user gets on the car.SELECTED DRAWING: Figure 1

Description

  Embodiments of the present invention relate to an elevator alert system.

  2. Description of the Related Art Conventionally, there has been known a technique for improving the safety of a user at the time of boarding by detecting a user riding in a car and controlling the opening / closing operation of a door. For example, in the technique described in Patent Document 1, when a car arrives at a landing, a predetermined range is photographed from the vicinity of the door of the car to the direction of the landing with a camera installed on the curtain board of the car. The presence / absence of a user who intends to get on the vehicle is detected using an image captured by the camera. And when the user with a willingness to board is detected, the opening of the car door is maintained or the closing door is opened again to prevent the user from being caught.

  However, if a user getting in the car is trying to get in with the object, such as putting a load on the carriage, pushing a stroller, or using a wheelchair, the object There is a concern of colliding with items around the door. When such an object collision occurs, the protection circuit may be activated to stop the operation of the elevator, which takes time until the operation can be resumed, causing a reduction in service quality.

Japanese Patent No. 6092433

  The problem to be solved by the present invention is to provide a warning system for an elevator that appropriately prevents a user from colliding with an object when getting on the vehicle by appropriately giving a warning to a user who tries to get on the car with the object. It is to be.

  The elevator alert system according to the embodiment includes an imaging unit, a user detection unit, a door control unit, a determination unit, and a warning unit. The imaging means photographs a predetermined range from the vicinity of the door of the car toward the landing when the car arrives at the landing. The user detection means detects the presence / absence of a user who intends to get on board using the video imaged by the imaging means. The door control means controls the opening / closing operation of the door based on the detection result of the user detection means. When the user detecting means detects a user who intends to get on, the determining means determines whether or not the user is going to get on with an object using the video, and the user When it is determined that the vehicle is about to get on with the object, it is further determined whether or not a collision of the object is predicted when the user gets on the vehicle. The warning means outputs a warning to the user when it is determined that a collision of the object is predicted when getting on.

FIG. 1 is a block diagram illustrating a configuration example of an elevator alert system according to the first embodiment. FIG. 2 is a diagram showing a state of the elevator hall. FIG. 3 is a diagram illustrating an example of a method for predicting an object collision. FIG. 4 is a diagram illustrating an example of a method for predicting an object collision. FIG. 5 is a flowchart illustrating an operation example of the elevator alert system according to the first embodiment. FIG. 6 is a block diagram illustrating a configuration example of an elevator alert system according to the second embodiment. FIG. 7 is a flowchart illustrating an operation example of the elevator alert system according to the second embodiment.

  Hereinafter, an elevator alert system according to an embodiment will be described in detail with reference to the accompanying drawings. In the alert system according to the present embodiment, a user who rides in a car is trying to get on the vehicle with an object such as putting a load on the carriage, pushing a stroller, or using a wheelchair. In this case, it is determined whether or not an object collision is predicted when boarding, and if an object collision is predicted, a warning is issued to the user to alert the user. Prevent object collisions.

  In the present embodiment, by applying the boarding detection technology disclosed in Patent Document 1, whether or not a user getting on the car is going to get on with an object, or if getting on with an object It is determined whether or not an object collision is predicted when boarding. The boarding detection technology disclosed in Patent Document 1 is to shoot a predetermined range from the vicinity of the car door to the boarding direction with the camera installed on the car screen when the car arrives at the boarding place. The presence / absence of a user who intends to get on the vehicle is detected using an image captured by the camera. In this embodiment, when a user who intends to get on is detected, whether or not the user is going to get on with an object, and if the user is about to get on with an object, the collision of the object occurs when getting on. It is further determined using the video image | photographed with the above-mentioned camera whether it is predicted. And when the collision of an object is estimated, the warning with respect to a user is output.

<First Embodiment>
FIG. 1 is a block diagram illustrating a configuration example of an elevator alert system 1 according to the first embodiment, and FIG. 2 is a diagram illustrating a state of an elevator hall 20. As shown in FIG. 1, an elevator alert system 1 according to this embodiment includes a camera 2 (imaging means), a video analysis device 10, a door control device 3 (door control means), and a warning device 4 (warning). Means) and a projector 5 (video projection means).

  For example, as shown in FIG. 2, the camera 2 is installed on a curtain plate or the like above the entrance 31 of the car 30 with the lens portion facing the landing 20. When the car 30 arrives at each floor and the door is opened, the camera 2 photographs a predetermined imaging range 21 from the vicinity of the door of the car 30 toward the landing 20. The video shot by the camera 2 is sent to the video analysis device 10 and the projector 5.

  The video analysis apparatus 10 includes an image processing processor, analyzes video captured by the camera 2, and acquires various types of information. The image processor is, for example, a general-purpose processor that operates according to a software program, an ASIC (Application Specific Integrated Circuit) or an FPGA (Field-Programmable Gate Array) designed according to the purpose. The video analysis apparatus 10 includes a user detection unit 11 and a determination unit 12 as functional components realized by an image processor.

  The user detection unit 11 detects the presence / absence of a user who intends to get on board using the video of the hall 20 photographed by the camera 2. The user detection unit 11 can detect the presence or absence of a user who intends to get on the vehicle by a method similar to the method disclosed in Patent Document 1, for example. That is, for example, the user detection unit 11 analyzes a video captured by the camera 2 to detect a block with motion, and among these blocks with motion, the block closest to the entrance 31 of the car 30 is detected by the user. Estimated position. Then, when the estimated position of the user is moving toward the entrance / exit 31 of the car 30, it is determined that there is a user who is willing to board. When the user detection unit 11 detects a user who intends to get on, a user detection signal is sent to the door control device 3.

  When a user who is willing to board is detected by the user detection unit 11, the determination unit 12 uses the video of the hall 20 photographed by the camera 2 so that the user places a load on a carriage, for example. It is determined whether or not the user is going to get on with an object such as a person pushing a stroller or using a wheelchair. For example, when the feature of an object such as a cart, a stroller, or a wheelchair on which a load is loaded is extracted from the video of the hall 20 photographed by the camera 2, and the determination unit 12 is moving with the user, It is determined that a user who intends to get on board is going to get on with an object. FIG. 2 illustrates a state in which a user 40 who intends to get on the vehicle tries to get on the car 30 with the load 42 on the carriage 41.

  Further, when the determination unit 12 determines that the user 40 who intends to get on board is going to get on with an object (for example, the carriage 41 or the luggage 42), the video of the hall 20 taken by the camera 2 is further displayed. It is used to determine whether or not an object collision is predicted when boarding. Details of a specific example of a method for predicting an object collision will be described later. If the user 40 who intends to get on the vehicle tries to get on with the object and the determination unit 12 determines that the collision of the object is predicted when the user 40 gets on the vehicle, the collision prediction signal is output from the warning device 4 and It is sent to the projector 5.

  The door control device 3 controls the opening / closing operation of the door of the car 30. For example, the door control device 3 opens and closes the door when the car 30 arrives at the landing 20, and controls the opening and closing operation of the door so that the door is closed when a predetermined predetermined door opening time elapses. When the user detection signal is received from the user detection unit 11 of the video analysis device 10 before the closing operation is started, the door is kept open. The door control device 3 also includes a user detection unit of the video analysis device 10 after the door opening time has elapsed and the door closing operation has been started and before the door is completely closed and the car 30 starts. When the user detection signal is received from 11, the door is opened again (reopened). Thereby, it is possible to prevent the door 40 from being caught when the user 40 gets on the car 30.

  When the warning device 4 receives a collision prediction signal from the determination unit 12 of the video analysis device 10, the warning device 4 issues a warning to the user 40 who is about to get on the car 30 with an object (for example, the carriage 41 or the luggage 42). Output. The warning to the user 40 is performed by, for example, outputting a warning announcement such as “There is a risk of collision of luggage. Thereby, it is possible to alert the user 40 who tries to get on the car 30 with an object so as not to cause a collision of the object when getting on. The warning to the user 40 may be performed by sounding a buzzer, turning on a warning light, displaying a warning message, or the like, instead of outputting a warning announcement, or combining these to give a warning to the user 40. May be.

  When the projector 5 receives a collision prediction signal from the determination unit 12 of the video analysis device 10, the projector 5 displays a video (navigation path) that represents a moving route that allows the user 40 to get on the car 30 without causing an object collision. The line 23) is projected and displayed on the floor of the hall 20. For example, as shown in FIG. 2, the projector 5 is installed together with the camera 2 on a curtain plate or the like above the entrance 31 of the car 30. When the projector 5 receives the collision prediction signal from the determination unit 12 of the video analysis device 10, the projector 5 uses the video imaged by the camera 2 and the center position in the width direction of the entrance / exit 31 of the car 30 from the center position in the width direction of the object. The navigation line 23 representing the movement route is projected and displayed on the floor surface of the hall 20. Thereby, the user 40 can be made to recognize the movement path | route which does not produce the collision of an object, and the collision of the object at the time of boarding can be prevented more effectively.

  Here, a specific example of a method by which the determination unit 12 of the video analysis apparatus 10 predicts an object collision will be described with reference to FIGS. 3 and 4. 3 and 4 are diagrams illustrating an example of a method for predicting the collision of an object. FIG. 3 illustrates a state in which the vicinity of the entrance / exit 31 of the car 30 is viewed from above, and FIG. The state which looked at the entrance 31 from the hall 20 side is shown.

  When the determination unit 12 determines that the user 40 who intends to get on the vehicle is going to get on with an object (for example, a carriage 41 or a baggage 42), the determination unit 12 first uses the image of the hall 20 captured by the camera 2. Then, the width W1 of the object (the luggage 42 in FIG. 3) is calculated. Then, based on the result of comparing the calculated width W1 of the object with the first threshold value, it is determined whether or not a collision of the object is predicted at the time of boarding. For example, if the calculated width W1 of the object is equal to or larger than the first threshold, the determination unit 12 determines that the collision of the object is predicted at the time of boarding. Here, for example, the first threshold value is set to a value obtained by subtracting a predetermined gap required when an object passes from the width W2 of the entrance 31 of the car 30. When the width W2 of the entrance 31 differs depending on the landing 20, the first threshold value is also set to a different value.

  When the collision of the object is not predicted by the above-described method, that is, when the width W1 of the object is less than the first threshold, the determination unit 12 next uses the video of the hall 20 captured by the camera 2 to In FIG. 3, the position P1 and the orientation θ of the object in the determination area 22 when the luggage 42) enters the predetermined determination area 22 are detected. The determination area 22 is set in the vicinity of the entrance 31 of the car 30 in the imaging range 21 of the camera 2. The position P1 of the object is, for example, the center position in the width direction of the object, and the direction θ of the object represents a deviation angle from the state when the state facing the entrance 31 of the car 30 is 0.

  Then, the determination unit 12 determines whether or not the collision of the object is predicted when the user gets on the basis of the width W1 of the object and the position P1 and the direction θ of the object in the determination area 22. For example, the determination unit 12 estimates a position P <b> 2 where the object (the center in the width direction) passes through the doorway 31 of the car 30 on boarding from the position P <b> 1 and the direction θ of the object in the determination area 22. Then, the distance X between the estimated position P2 and the end of the entrance / exit 31 is obtained. If the length twice as long as the distance X is equal to or less than the width W1 of the object, the collision of the object is predicted at the time of boarding. judge.

  In addition, when the collision of the object is not predicted by the above-described method, the determination unit 12, that is, the object width W1 is less than the first threshold, and the length twice the distance X is less than the object width W1. In this case, the height H1 of the object (the luggage 42 in FIG. 3) is calculated using the video of the hall 20 taken by the camera 2. Then, based on the result of comparing the calculated height H1 of the object with the second threshold value, it is determined whether or not the collision of the object is predicted at the time of boarding. For example, if the calculated height H1 of the object is equal to or greater than the second threshold value, the determination unit 12 determines that the collision of the object is predicted when boarding. Here, for example, the second threshold value is set to a value obtained by subtracting a predetermined gap required when an object passes from the height H2 of the entrance 31 of the car 30. When the height H2 of the entrance 31 differs depending on the landing 20, the second threshold value is also set to a different value.

  When the determination unit 12 determines that an object collision is predicted by the above method, a warning announcement for the user 40 is output from the hall speaker 6 by the warning device 4 and the floor surface of the hall 20 is projected by the projector 5. The navigation line 23 is projected and displayed. The projected display of the navigation line 23 is an effective function mainly when the collision in the width direction of the object is predicted. Therefore, the collision of the object is detected when the height H1 of the object is equal to or greater than the second threshold value. If predicted, the projection display of the navigation line 23 may not be performed.

  Next, the operation of the elevator alert system 1 according to the present embodiment will be described with reference to FIG. FIG. 5 is a flowchart showing an operation example of the elevator alert system 1 according to the present embodiment, and shows a process after the user 40 with the intention to get on is detected by the user detection unit 11 of the video analysis device 10. The flow is shown.

  When the user 40 who is willing to board is detected by the user detection unit 11, the determination unit 12 of the video analysis device 10 first uses the video of the hall 20 captured by the camera 2 to determine whether the user 40 is For example, it is determined whether or not the user intends to get on with the object such as placing the luggage 42 on the carriage 41, pushing a stroller, or using a wheelchair (step S101). And if the user 40 is not going to board with an object (step S101: No), a process will be complete | finished as it is. On the other hand, when it is determined that the user 40 is about to get on with the object (step S101: Yes), the determination unit 12 then uses the video of the hall 20 photographed by the camera 2 to determine the width of the object. W1 is calculated (step S102), and based on the result of comparing the calculated width W1 of the object with the first threshold value, it is determined whether or not the collision of the object is predicted when getting on (step S103).

  Here, when it is determined that the collision of the object is predicted during the boarding (step S103: Yes), the determination unit 12 sends a collision prediction signal to the warning device 4 and the projector 5. As a result, a warning announcement is output from the hall speaker 6 by the warning device 4 (step S108), and the navigation line 23 representing the travel route on which the projector 5 gets on without causing an object collision is displayed on the floor surface of the hall 20. Are projected and displayed (step S109), and a series of processing ends.

  On the other hand, when it is determined in step S103 that the collision of the object is not predicted (step S103: No), the determination unit 12 next uses the video of the hall 20 photographed by the camera 2 and uses the image in the determination area 22. The position P1 and direction θ of the object are detected (step S104). Based on the object width W1 calculated in step S102 and the position P1 and the orientation θ of the object in the determination area 22, the determination unit 12 determines whether or not an object collision is predicted when the user gets on the vehicle. Determination is made (step S105).

  Here, when it is determined that a collision of an object is predicted during the boarding (step S105: Yes), the determination unit 12 sends a collision prediction signal to the warning device 4 and the projector 5. As a result, a warning announcement is output from the hall speaker 6 by the warning device 4 (step S108), and the navigation line 23 representing the travel route on which the projector 5 gets on without causing an object collision is displayed on the floor surface of the hall 20. Are projected and displayed (step S109), and a series of processing ends.

  On the other hand, when it is determined in step S105 that the collision of the object is not predicted (step S105: No), the determination unit 12 next uses the video of the hall 20 photographed by the camera 2 to determine the height H1 of the object. It is calculated (step S106), and based on the result of comparing the calculated object height H1 with the second threshold value, it is determined whether or not a collision of the object is predicted upon boarding (step S107).

  Here, when it is determined that the collision of the object is predicted during the boarding (step S107: Yes), the determination unit 12 sends a collision prediction signal to the warning device 4 and the projector 5. As a result, a warning announcement is output from the hall speaker 6 by the warning device 4 (step S108), and the navigation line 23 representing the travel route on which the projector 5 gets on without causing an object collision is displayed on the floor surface of the hall 20. Are projected and displayed (step S109), and a series of processing ends. On the other hand, when it is determined that the collision of the object is not predicted (step S107: No), the processing is ended as it is.

  As described above in detail with reference to specific examples, the elevator alert system 1 according to the present embodiment, when there is a user 40 who wants to get on the car 30 with an object, It is determined whether or not an object collision is predicted when the user gets on the vehicle. If an object collision is predicted, a warning to the user 40 is output. Therefore, according to the elevator alert system 1 according to the present embodiment, it is possible to appropriately alert the user 40 who tries to get on the car 30 with an object, and to prevent the object from colliding with the object. Can be prevented.

  Further, according to the elevator alert system 1 according to the present embodiment, when it is determined that a collision of an object is predicted at the time of boarding, a navigation line representing a travel route on which the user gets on without causing a collision of the object 23 is projected and displayed on the floor surface of the hall 20, so that the user 40 can recognize the movement path that does not cause the collision of the object, and the collision of the object at the time of boarding can be more effectively prevented. Can do.

Second Embodiment
Next, a second embodiment will be described. In the present embodiment, an image of a predetermined period including the time when the collision of the object is detected when the collision of the object is detected using the image captured by the camera 2 and the collision of the object is detected is detected. At the same time, when the user 40 gets out of the car 30, the warning for the user 40 is output again. Since other functions and operations are the same as those in the first embodiment described above, the same components as those in the first embodiment are denoted by the same reference numerals, and redundant descriptions are omitted as appropriate. Only the characteristic features of the embodiment will be described.

  FIG. 6 is a block diagram illustrating a configuration example of an elevator alert system 1 ′ according to the second embodiment. In the present embodiment, a collision detection unit 13 (collision detection means) is added as a functional component of the video analysis device 10 ′ in addition to the user detection unit 11 and the determination unit 12 common to the first embodiment. ing. In addition, the elevator alert system 1 ′ according to the present embodiment includes a storage device 7 (video storage unit) for storing video, and allows the user 40 to register a destination floor in the car 30. A car operation panel 8 to be operated is connected to the warning device 4 '.

  In the elevator alerting system 1 ′ according to the present embodiment, an object collision is predicted when the user 40 gets on the car 30, similarly to the elevator alerting system 1 according to the first embodiment described above. The user 40 is alerted by outputting a warning to the user 40 or projecting and displaying the navigation line 23. However, in spite of such measures, there may be a case where an object collides during actual boarding. Therefore, in the present embodiment, the collision detection unit 13 is added to the video analysis device 10 ′, and when a collision of an object occurs when getting on, the collision detection unit 13 of the video analysis device 10 ′ is captured by the camera 2. By analyzing the video, it is possible to detect the collision of the object when riding. When the collision detection unit 13 detects a collision of an object, a collision detection signal is sent to the warning device 4 ′, and a time stamp of a video in which the collision of the object is detected (a time stamp indicating a time when the collision of the object occurs) Is notified to the storage apparatus 7.

  The storage device 7 is a large-capacity data storage device such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive), for example, and video captured by the camera 2 is input directly or via the video analysis device 10 ′. It is comprised so that. When the storage device 7 is notified of the time stamp of the video in which the collision of the object is detected from the collision detection unit 13 of the video analysis device 10 ′, the storage device 7 is predetermined before and after the video shot by the camera 2 including the time stamp. Save the video for the period. The video stored in the storage device 7 can be used, for example, as information for specifying an inspection location when a maintenance worker performs maintenance and inspection work for an elevator.

  In this embodiment, when a collision of an object is detected by the collision detection unit 13 of the video analysis device 10 ′, a video of a predetermined period including the time when the collision of the object is detected is stored in the storage device 7. However, instead of this, it may be configured to transmit an image of a predetermined period including the time when the collision of the object is detected to an external device such as a monitoring device installed in a remote monitoring center, for example. .

  Further, in the elevator alert system 1 ′ according to the present embodiment, when the warning device 4 ′ receives a collision detection signal from the collision detection unit 13 of the video analysis device 10 ′, for example, an operation of the car operation panel 8 is performed. The destination floor of the user 40 is detected based on the signal. The warning device 4 ′ outputs a warning again to the user 40 when the car 30 arrives at the destination floor of the user 40 and the user 40 gets out of the car 30. The warning to the user 40 is performed by, for example, outputting a voice announcement from a speaker installed in the car 30 such as “There is a danger of a luggage collision. Be careful when getting off.” Thereby, it is possible to alert the user 40 who collided with the object when getting on the vehicle so as not to cause collision of the object when getting off.

  Next, the operation of the elevator alert system 1 'according to the present embodiment will be described with reference to FIG. FIG. 7 is a flowchart showing an operation example of the elevator alert system 1 ′ according to the present embodiment, and after the processing at the time of boarding (the processing shown in the flowchart of FIG. 5) similar to the first embodiment is completed. The flow of processing performed is shown.

  In the present embodiment, after the warning output to the user 40 and the projection display of the navigation line 23 are performed, the collision detection unit 13 of the video analysis device 10 ′ uses the video taken by the camera 2 to get an object on board It is determined whether or not a collision has occurred (step S201). And if the object has not collided at the time of boarding (step S201: No), a process will be complete | finished as it is. On the other hand, when a collision of an object is detected during boarding (step S201: Yes), the collision detection unit 13 stores a time stamp (a time stamp indicating a time when the collision of the object has occurred) of a video in which the collision of the object is detected. The device 7 is notified. As a result, among the images captured by the camera 2, images for a predetermined period before and after the time when the collision of the object is detected are stored in the storage device 7 (step S202).

  Moreover, the collision detection part 13 sends a collision detection signal to warning device 4 ', when the collision of an object is detected (step S201: Yes). Upon receiving the collision detection signal from the collision detection unit 13, the warning device 4 'detects the destination floor of the user 40 based on the operation signal from the car operation panel 8, for example (step S203). Then, the warning device 4 ′ determines whether or not the car 30 has arrived at the destination floor of the user 40 (step S204), and when the car 30 arrives at the destination floor of the user 40 (step S204: Yes). ), A warning announcement is output from the speaker in the car 30 (step S205), and the series of processing ends.

  As described above, the elevator alert system 1 ′ according to the present embodiment allows the user 40's destination floor to be detected when an object collision is detected when the user 40 is about to get on with the object. When the user 40 gets off at the destination floor, a warning for the user 40 is output again. Therefore, according to the elevator alert system 1 'according to the present embodiment, it is possible to alert the user 40 who collided with an object when getting on the vehicle so as not to cause another collision of the object when getting off the vehicle.

  In addition, according to the elevator alert system 1 ′ according to the present embodiment, since an image of a predetermined period including a time when an object collision is detected is stored in the storage device 7, for example, a maintenance worker By checking the video stored in the storage device 7 when the elevator maintenance inspection work is performed, the inspection location can be easily specified.

  According to at least one of the embodiments described above, it is possible to appropriately alert a user who tries to get on the car with the object, thereby preventing the object from colliding with the object.

  As mentioned above, although embodiment of this invention was described, the above-mentioned embodiment is shown as an example and is not intending limiting the range of invention. The above-described embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

  1 (1 ') alerting system, 2 camera (imaging means), 3 door control device (door control means), 4 (4') warning device (warning means), 5 projector (video projection means), 7 storage device ( (Video storage means), 10 (10 ′) video analysis device, 11 user detection unit (user detection unit), 12 determination unit (determination unit), 13 collision detection unit (collision detection unit), 20 landing, 22 determination area , 23 Navigation line (video showing the movement route), 30 car.

The elevator alert system according to the embodiment includes an imaging unit, a user detection unit, a door control unit, a determination unit, and a warning unit. The imaging means photographs a predetermined range from the vicinity of the door of the car toward the landing when the car arrives at the landing. The user detection means detects the presence / absence of a user who intends to get on board using the video imaged by the imaging means. The door control means controls the opening / closing operation of the door based on the detection result of the user detection means. When the user detecting means detects a user who intends to get on, the determining means determines whether or not the user is going to get on with an object using the video, and the user When it is determined that the vehicle is about to get on with the object, it is further determined whether or not a collision of the object is predicted when the user gets on the vehicle. The warning means outputs a warning to the user when it is determined that a collision of the object is predicted when getting on. The determination means is that when the feature of the object is extracted from the video and it is determined that the object is moving with the user, the user is going to get on with the object. judge.

Claims (7)

Imaging means for photographing a predetermined range from the vicinity of the door of the car toward the hall when the car arrives at the hall;
User detection means for detecting the presence or absence of a user who intends to get on board using the video imaged by the imaging means;
Door control means for controlling the opening and closing operation of the door based on the detection result of the user detection means;
When a user who intends to get on is detected by the user detecting means, the video is used to determine whether or not the user is going to get on with the object, and the user is accompanied by the object. A determination means for determining whether or not a collision of the object is predicted at the time of boarding,
A warning system for an elevator, comprising: warning means for outputting a warning to the user when it is determined that a collision of the object is predicted upon boarding.   The determination means calculates the width of the object using the video, and based on the result of comparing the calculated width of the object with a first threshold value, whether or not a collision of the object is predicted when riding The elevator alert system according to claim 1, wherein:   The determination means calculates the width of the object using the video, detects the position and orientation of the object in the determination area when the object enters a predetermined determination area, and detects the detected object The elevator attention according to claim 1 or 2, wherein it is determined whether or not a collision of the object is predicted at the time of boarding based on the position and orientation of the object and the calculated width of the object. Arousal system.   The determination means calculates the height of the object using the video, and predicts a collision of the object when riding based on a result of comparing the calculated height of the object with a second threshold value. The elevator alerting system according to any one of claims 1 to 3, wherein it is determined whether or not.   Video projection means for projecting and displaying on the floor of the hall a video representing a travel route on which the vehicle travels without causing a collision of the object when it is determined that the collision of the object is predicted during the boarding; The elevator alerting system according to any one of claims 1 to 4, further comprising: Using the video, further comprising a collision detection means for detecting a collision of the object,
The elevator warning system according to any one of claims 1 to 5, wherein the warning means outputs a warning again when the user gets off when the collision of the object is detected. .   The elevator alerting system according to claim 6, further comprising video storage means for storing a video of a predetermined period including a time when the collision of the object is detected among the videos.

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