JP6402578B2 - Elevator system - Google Patents

Description

  The present invention relates to an elevator system including an object detection unit that detects an object in the vicinity of a door, and more specifically to an elevator system capable of displaying a detected object.

  In an elevator system, in order to prevent an object from being caught in a door or door pocket during opening and closing operations, when an object such as an obstacle is detected near the door, the door is reversed or the opening and closing operation is stopped. Proposed.

  For example, in Patent Document 1, when an object is detected, the door is reversed or opened and opened, and the abnormality is notified to the passenger by voice.

JP 2009-298491 A

  However, even if the passenger can recognize that an abnormality has occurred, it is difficult to know what caused the door to reverse or stop. In particular, when the object that is pinched is a thin string-like body such as a lead for pets, or when a passenger or the like is too close to or touching the door, it is difficult to notice the cause. In addition, when the passenger or the car in the opposite direction to the door is in a congested state, the vicinity of the door cannot be visually recognized, and the cause of the abnormality is often unknown.

  Under such circumstances, it is difficult for the passenger to remove the cause of the abnormality, and the passenger may be anxious.

  An object of the present invention is to provide an elevator system that displays image information including a detected object when an object near the door is detected during a door opening operation or a door closing operation.

The elevator system according to the present invention is:
Door control means for controlling the opening and closing of the car door;
Object detection means for detecting an object in the vicinity of the door;
An elevator system comprising:
Imaging means for imaging the vicinity of the door;
Display means installed in the car and displaying image information imaged by the imaging means;
Display control means for displaying image information including the object on the display means when an object is detected by the object detection means during the door opening or closing operation by the door control means;
Have

  According to the present invention, when an object is detected in the vicinity of the door during the door opening operation or the door closing operation, image information in the vicinity of the door including the object is displayed. Therefore, the passenger can directly and visually grasp the cause of the abnormality. Since the passenger can quickly and easily remove the cause of the reverse or stop of the door, the passenger can get on safely and the elevator system can be efficiently operated.

FIG. 1 is an explanatory diagram of an elevator system according to an embodiment of the present invention, and is a view of a door side as seen from the inside of a car. FIG. 2 is a diagram showing an example of image information of the display unit according to the embodiment of the present invention. FIG. 3 is a functional block diagram of the car-side control device according to the embodiment of the present invention. FIG. 4 is a flowchart showing image switching display processing when an object is detected in the vicinity of the door by the object detection means. FIG. 5 is a diagram showing an example of image information of a display unit according to another embodiment of the present invention. FIG. 6 is a diagram showing an example of image information of a display unit according to another embodiment of the present invention.

  Hereinafter, an elevator system 10 according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is an explanatory view with reference to a door 21 in a closed state from the inside of a car 20 according to an embodiment of the present invention. The arrow in the figure indicates the opening direction of the door 21.

  As shown in FIG. 1, the car 20 is provided with a door 21 at the entrance to the car 20. In the vicinity of the door 21, a destination floor (not shown) is selected and the door 21 is opened and closed. An operation button, a display means 36, and an imaging means 34 for taking an image or video in the vicinity of the door 21 are arranged. In addition, an object detection unit 37 that detects an object in the vicinity of the door 21 is disposed in the vicinity of the door 21 or the door 21. Examples of detected objects include string-like bodies such as passenger hands and feet, luggage, and pet leads.

  The display unit 36 can be exemplified by a liquid crystal display panel that can display image information captured by the imaging unit 34. The display means 36 may display car information such as the ascending / descending direction, position, and stop floor of the car 20 in a normal operation state. In addition, it can also serve as an operation button by making the display means 36 into a touch panel type. Of course, the display means 36 may be configured not to display anything in a normal operation state, or to display facilities in the building, for example, information on the dining room floor.

  The imaging means 34 can be exemplified by a camera equipped with a CCD element or a CMOS element capable of taking an image or video. More preferably, the imaging unit 34 can capture a video. The imaging means indicated by reference numeral 34a in FIG. 1 images the vicinity of the butted portion of the door 21. For example, in FIG. 1, it arrange | positions in the center upper part where the door 21 in the cage | basket 20 faces, and can image | photograph the slide transition path of the door 21 to close shown by the area | region S. FIG. Although the illustrated door 21 is double-opened, in the case of a single-open door, the imaging means 34 may be capable of photographing the vicinity in the closing direction. In addition, the image pickup means indicated by reference numeral 34b in FIG. 1 can take images of the areas S1 and S1 in the vicinity of the door pocket of the door 21, respectively.

  FIG. 2 shows a state in which an example of the image information 50 captured by the imaging unit 34 (34a) is displayed on the display unit 36. Referring to FIG. 2, the sills 12 and 22 of the door 21 are photographed from above by the imaging means 34a and straddle the sill 12 on the landing 11 side on the upper side and the sill 22 on the car 20 side on the lower side in the figure. It can be seen that a string-like body is reflected in the center of the object 40. FIG. 2 is an enlarged view of a part of the captured image information 50 displayed on the display means 36.

  As the object detection means 37, a laser type sensor 37a that detects an object by irradiating a laser or the like in the vertical direction at the center where the door 21 abuts, and an object orthogonal to the sills 12 and 22 by binarization or the like by image analysis An image-type sensor to be detected can be exemplified. Further, as the object detection means 37, a sensor 37b that irradiates a laser, an infrared beam, or the like in the vicinity of the door pocket of the door 21 or an overlapping portion of the door 21 and detects an object such as a user approaching the door 21 can be exemplified. Furthermore, the object detection means 37 may be a pressure-sensitive sensor that senses that an object has contacted the door 21.

  For example, it is preferable to use the sensor 37a in combination with the imaging unit 34a disposed at the center upper portion where the door 21 abuts, and the sensor 37b in combination with the imaging unit 34b that images the door pocket.

  Further, the door detection means 38 (see FIG. 3) detects that the door opening operation and the door closing operation are completed, that is, that the door 21 is closed to a predetermined position. As the door detection means 38, a contact-type gate switch can be illustrated.

  The raising / lowering control of the car 20 is performed by an operation control device (not shown). And various control of the car 20 is performed by the car side control apparatus 30 mounted in the car 20 by connection with the operation control apparatus. FIG. 3 is a functional block diagram of the car-side control device 30. The car-side control device 30 is realized by a CPU, a memory, a buffer, various programs recorded in these, and in FIG. 3, among the functional blocks related to typical functions realized by linking them, the present invention Only functional blocks related to are drawn. It should be understood that these functional blocks can be realized by hardware only, software only, or a combination thereof.

  As shown in FIG. 3, the car-side control device 30 can be configured around door control means 32 that controls the opening and closing of the door 21.

  The door 21 is opened / closed, reversed, stopped, and the like by a motor 33 that operates according to a command from the door control means 32.

  The door control means 32 is connected to the imaging means 34 described above. The image pickup means 34 starts taking an image or video from the start or start of the door opening operation or door closing operation by the door control means 32, and takes the image until the door opening operation or door closing operation is completed or slightly after completion. It is preferable to set to continue. Note that at least the object detection unit 37 may capture an image or video as the image information at the moment when the object is detected or during the detection.

Image information captured by the imaging unit 34 is transmitted to the display control unit 35, and the image information is stored (temporarily stored) in a storage unit 35a linked to the display control unit 35.
The display control unit 35 can display the image information stored in the storage unit 35 a on the display unit 36. The display control unit 35 displays the image information on the display unit 36 while the object detection unit 37 detects the object 40 or after the object 40 is no longer detected, for a predetermined time (for example, 3 seconds). Can be. Meanwhile, the passenger can refer to the display means 36 to recognize what was the cause of the abnormality.

  During normal operation, the display control unit 35 may display the above-described car information on the display unit 36.

  Further, an object detection unit 37 and a door detection unit 38 are connected to the door control unit 32.

  When the object detection unit 37 detects an abnormality such as detecting an object in the vicinity of the door 21 during the door opening or closing operation, the door control unit 32 receives the signal and reverses the door 21. Operate or stop. Moreover, it is detected by the door detection means 38 that the door 21 is completely opened or closed, and the door control means 32 allows the operation control device to allow the car 20 to move up and down.

  FIG. 4 shows image switching in the case where an abnormality is detected by the object detection means 37 during the door opening operation or the door closing operation in the elevator system 10 configured as described above, that is, when the object 40 is detected in the vicinity of the door 21. It is a flowchart which shows a display process. This process is executed when the car 20 has landed and the door control unit 32 has started the door opening operation or the door control unit 32 has started the door closing operation.

  Prior to the start of the door opening operation or the door closing operation, the display control means 35 displays the car information on the display means 36. The display control means 35 may display the stop means, the door opening operation or the door closing operation as car information on the display means 36 when the car 20 is landed. .

  When the door opening operation or the door closing operation is started (step S <b> 11), the imaging unit 34 starts capturing an image and transmits the image to the display control unit 35. Then, the display control unit 35 stores (temporarily stores) the received image in the storage unit 35a. The object detection unit 37 detects the presence or absence of the object 40 in the vicinity of the door 21. For example, when the sensor 37a which detects the object of the center part which the door 21 mentioned above collides is employ | adopted as the object detection means 37, the presence or absence of the object 40 is detected by the sensor 37a. Moreover, when the sensor 37b which detects the object of the vicinity of the door pocket of the door 21 mentioned above or the overlapping part of the door 21 is employ | adopted as the object detection means 37, the approach and pinching of the object to the door pocket of the door 21 are detected.

  When the object detection unit 37 detects the object 40 (YES in step S12), the door control unit 32 performs the reversing operation or stop of the door 21, and the display control unit 35 is stored in the storage unit 35a. The image information including the object 40 in which the object 40 is detected is acquired with reference to the time stamp of the image information and the like, and the display image on the display means 36 is switched from the car information to the imaged image information (step S13). . Thereby, the image information including the object 40 is displayed on the display means 36 as shown in FIG.

  In this flowchart, since YES in step S12 and step S13 are repeated while the object detection unit 37 is detecting the object 40, the image information captured repeatedly by the imaging unit 34 and stored in the storage unit 35a is almost real time. Is displayed on the display means 36.

  The passenger can refer to the image information (FIG. 2) displayed on the display means 36 to recognize what caused the door 21 to reverse or stop, and easily remove the object 40. Can do.

  Thereafter, when the object detection unit 37 does not detect the object 40 (NO in step S12), the display control unit 35 returns the image displayed on the display unit 36 from the image information to the car information (step S14). Of course, after step S11, if the object 40 is not detected in step S12, the display control means 35 continues to display the car information on the display means 36.

  The above steps are repeated until the door detection means 38 detects that the door opening operation or the door closing operation has been completed (NO in step S15).

  When the door detection means 38 detects the completion of the door opening operation (YES in step S15), a signal to that effect is transmitted from the car-side control device 30, allowing the operation control device to move up and down the car 20, and display control. The means 35 stops imaging by the imaging means 34. Then, in the door opening operation or door closing operation performed later, the flowchart of the image switching display process is executed in the same manner as described above.

  The image information stored in the storage unit 35a can be deleted after the image switching display process is completed, or can be stored for a certain period or according to the capacity of the storage unit 35a.

  As described above, according to the present invention, when the object 40 is detected in the vicinity of the door 21 during the door opening operation or the door closing operation, the image information in the vicinity of the door 21 including the object 40 is displayed. Thus, the passenger can directly recognize the situation and grasp the cause. Moreover, the cause 40 can be quickly removed by grasping the cause. For this reason, the passenger does not become anxious without knowing the cause of the abnormality. And the safety of the elevator system 10 is improved by the prompt action, and the operation of the car 20 can be resumed promptly, so that the operation efficiency of the elevator system 10 can be improved.

  The above description is for explaining the present invention, and should not be construed as limiting the invention described in the claims or limiting the scope thereof. Further, the configuration of each part of the present invention is not limited to the above-described embodiment, and various modifications can be made within the technical scope described in the claims.

  For example, in the flowchart described above, the image information is displayed on the display unit 36 only while the object detection unit 37 detects the object 40, but the object 40 is included for a predetermined time after the object 40 is no longer detected. Image information may be displayed. Further, when displaying the image information on the display means 36, the image information 50 is displayed in a partial area of the car information 52 by picture-in-picture, as shown in FIG. The car information may be displayed in a part of the area.

  Furthermore, the display means 36 performs image processing on the received image information, and highlights and displays the detected image of the object 40 or displays it in a processed state, so that the object 40 can be quickly and reliably recognized by the passenger. Can be made.

  As shown in FIG. 6, the display control means 35 displays characters 54 or symbols side by side or superimposed on the image information 50 displayed on the display means 36 by superimposition or the like, thereby prompting attention. Good. In addition, alerting may be urged by sound output together with image display.

  If the display control means 35 has an image analysis function and the displayed object 40 can be specified, what the object 40 is may be displayed. In addition, when the object detection unit 37 can identify the cause of the abnormality such as the object 40 being caught or the door 21 being too close to the door 21, the obstacle is removed from the door 21. You may make it alert by the display of the character to which it leaves | separates, a design, audio | voice output, etc.

  Further, when the display control means 35 has an image analysis function, the display control means 35 can also serve as the object detection means 37. That is, the display control means 35 analyzes the image of the imaging means 34 and detects the presence or absence of the object 40, thereby making it unnecessary to detect the article by the sensor.

  In the above embodiment, the imaging unit 34 captures only the vicinity of the door 21, but a security camera in the car 20 is adopted as the imaging unit 34, and the display control unit 35 is a display unit in a normal operation state. An image of the security camera may be displayed in real time on 36, and when the object 40 is detected, only the vicinity of the object 40 may be enlarged and displayed on the display means 36. Further, both the security camera in the car 20 and the imaging means 34 for photographing the object 40 are provided, and the display control means 35 displays an image or video of the security camera in a normal operation state, and the object 40 is detected. In this case, the image information of the imaging means 34 may be switched and displayed.

  In addition, when the display means is also installed at the landing, not only the display means 36 in the car 20 but also the same image or video can be displayed as image information on the display means on the landing side. Thereby, not only the passenger in the car 20 but the user of the hall can recognize the abnormality at the time of the door opening operation or the door closing operation. For example, when getting out of the car 20, when a string-like body such as a pet lead is hung in the door 21 and the like, the cause can be recognized and alerted.

DESCRIPTION OF SYMBOLS 10 Elevator system 20 Car 21 Door 30 Car side control apparatus 32 Door control means 34 Imaging means 35 Display control means 36 Display means 37 Object detection means

Claims (4)

Door control means for controlling the opening and closing of the car door;
Object detection means for detecting an object in the vicinity of the door;
An elevator system comprising:
First imaging means for imaging the car;
Second imaging means for imaging the door sill disposed on the door;
Display means installed in the car and displaying image information imaged by the first imaging means or the second imaging means;
In a normal operation state, the crime prevention image in the car imaged by the first imaging means is displayed on the display means,
When an object is detected by the object detection means during the door opening operation or the door closing operation by the door control means, the display of the display means is captured from the security image by the second imaging means. display control means for obtaining switching Rikawa the image information including the object,
An elevator system comprising: The display control means enlarges only the vicinity of the object to display image information including the object imaged by the second imaging means while the object detection means is detecting the object. Displayed on the display means, or displayed on the display means by arranging characters and designs in superimpose on the image information including the object imaged by the second imaging means,
The elevator system according to claim 1. The door control means performs the reversing operation of the door when an object is detected by the object detection means during the door opening operation or the door closing operation,
Said display control means, until said reversing operation of the door is completed, the image information including the pre-Symbol object displayed on said display means,
The elevator system according to claim 1. The display control means is connected to a storage means for storing captured image information. When the image information stored in the storage means is displayed on the display means, not the entire surface of the display means, but a picture-in-picture. Displaying the image information in a partial area of the car information or displaying the car information in a partial area of the image information ,
The elevator system according to any one of claims 1 to 3.

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