JP6640946B1 - Elevator control device and elevator control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator control device and an elevator control method capable of accurately preventing a door of a car of an elevator from opening during traveling. According to an embodiment, an elevator control device is connected to a moving body information acquisition unit that acquires state information of a moving body in a car of an elevator, and includes a moving body operation detection unit, a door control instruction output unit, Is provided. The moving body motion detection unit detects a moving body that collides with the car door of the car or is close to the car door, which is present in the car of the elevator, based on the information acquired from the moving body information acquiring means. . The door control instruction output unit detects a moving object that collides with the car door of the car or a moving object that is close to the car door by the moving body operation detecting unit. Output an instruction to temporarily apply force. [Selection diagram] Fig. 1

Description

  Embodiments of the present invention relate to an elevator control device and an elevator control method.

  Conventionally, in the control of an elevator, when a door opening of a predetermined distance (for example, 2 mm) is detected as a process for preventing the door opening of the car during traveling, a force of a predetermined magnitude is applied to the car door in the door closing direction. (For example, 50N) is added temporarily. By performing the processing as described above, it is possible to prevent a situation in which the car is opened and the vehicle is suddenly stopped during traveling.

JP 2008-137755 A JP 2011-63416 A

  However, when the car door is pryed open from within the car or when the door is opened due to a collision, there is a problem that the door cannot be prevented even if force is applied to the car door after the door is opened. Was.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an elevator control device and an elevator control method capable of accurately preventing a door from opening during traveling of an elevator car.

According to the embodiment for achieving the above object, the elevator control device is connected to the moving body information acquiring means for acquiring the state information of the moving body in the elevator car, the moving body operation detecting unit and the door control instruction output Unit. The moving body motion detection unit detects a moving body that moves toward the car door of the car at a moving speed equal to or higher than a predetermined value as a moving body that collides with the car door . The door control instruction output unit, when a moving body that collides with the car door is detected by the moving body operation detection unit, the car door is closed in the door closing direction in a short time equal to or less than a predetermined time when the moving body colliding with the car door is detected. Outputs an instruction to apply the maximum force that can be applied to

1 is an overall view showing a configuration of an elevator using an elevator control device according to one embodiment. 5 is a flowchart showing the operation of the elevator control device according to one embodiment. 4 is an example of imaging information captured by a monitoring camera connected to the elevator control device according to one embodiment.

<Elevator Configuration According to One Embodiment>
A configuration of an elevator according to an embodiment of the present invention will be described with reference to FIG. The elevator 1 according to the present embodiment includes a car 10 that moves up and down in a hoistway, and an elevator control device 20 that is connected to the car 10 and controls operation of devices in the elevator 1.

  The car 10 has a car door 11, a monitoring camera device 12 as a moving body information acquisition unit, a door opening / closing drive mechanism 13, and a door control device 14. The monitoring camera device 12 is installed above the car 10 and generates imaging information including state information of a moving object in the car 10 by photographing the inside of the car 10 including the vicinity of the car door 11. The door opening / closing drive mechanism 13 drives the door opening / closing of the car door 11. The door control device 14 controls the opening and closing of the car door 11 by the door opening and closing drive mechanism 13 based on an instruction from the elevator control device 20.

  The elevator control device 20 includes a moving body motion detection unit 21 and a door control instruction output unit 22. The moving body motion detection unit 21 analyzes the imaging information captured by the monitoring camera device 12 to detect a moving body that is present in the car 10 and collides with the car door 11 or is close to the car door 11. To detect. When the moving body operation detecting section 21 detects a moving body that collides with the car door 11 of the car 10 or a moving body that is close to the car door 11, the door control instruction output section 22 outputs the door to the car door 11. An instruction for temporarily applying a predetermined magnitude of force in the closing direction is output.

<Operation of Elevator According to One Embodiment>
Next, the operation of the elevator 1 according to the present embodiment will be described with reference to the flowchart of FIG. In the present embodiment, while the car 10 of the elevator 1 is traveling, the inside of the car 10 is photographed by the monitoring camera device 12, and the imaging information generated by the photographing process is acquired by the elevator control device 20. In the elevator control device 20, the imaging information acquired from the surveillance camera device 12 is analyzed by the moving object motion detection unit 21, and the moving object or the car door existing in the car 10 and colliding with the car door 11 of the car 10 A moving object close to 11 is detected.

  Here, the moving body that moves toward the car door 11 by the moving body motion detection unit 21 at a moving speed equal to or higher than a predetermined value, for example, as shown in FIG. Alternatively, if an article thrown by the user Y toward the car door 11 with a strong force is detected ("YES" in S1), the moving body is detected as a moving body that collides with the car door 11. . Then, the door control instruction output unit 22 generates an instruction for temporarily applying a predetermined magnitude of force to the car door 11 in the door closing direction, and outputs the generated instruction to the door control device 14. Here, the magnitude of the force to be applied in the door closing direction is the maximum value of the force that can be applied to the car door 11 in the door closing direction in a short period of time equal to or less than a predetermined time (S2). ).

  Further, the moving body operation detecting unit 21 detects a moving body that is close to the car door 11 based on the state information of the moving body in the car 10, for example, a moving body that is in contact with the car door as shown in FIG. 3. When a plurality of moving objects whose distance from Z or the car door is equal to or less than a predetermined value are detected (“NO” in S1 → “YES” in S3), the detected moving object moves in the door opening direction. It is further determined whether or not there is.

  Here, when it is detected that the detected moving body is moving in the door opening direction (“YES” in S4), the door control instruction output unit 22 sets the car door to the above-described maximum value. An instruction for temporarily applying a force is generated and output to the door control device (S2).

  In the door control device 14, the operation of the door opening / closing drive mechanism 13 is controlled according to the instruction transmitted from the elevator control device 20, and the above-described maximum force is applied to the car door 11 in the door closing direction.

  Further, when it is not detected that the moving body detected in step S4 is moving in the door opening direction (“NO” in S4), the door control instruction output unit 22 controls the car door 11 to An instruction for temporarily applying a force smaller than the above-described maximum value is generated and output to the door control device 14 (S5).

  In the door control device 14, the operation of the door opening / closing drive mechanism 13 is controlled in accordance with the instruction transmitted from the elevator control device 20, and a predetermined value of force is applied to the car door 11 in the door closing direction.

  According to the above-described embodiment, the door opening can be accurately prevented by estimating the possibility of the door opening occurring from the state of the moving object in the car while the car of the elevator 1 is traveling. .

  In the above-described embodiment, the timing at which the moving body and the car door 11 collide with each other based on the distance from the moving body to the car door 11 and the moving speed of the moving body detected by the moving body motion detection unit 21 of the elevator control device 20 And the door control instruction output unit 22 may output an instruction to apply a maximum force to the car door 11 in the door closing direction before the timing comes. By performing such processing, it is possible to prevent the door from being opened during traveling with higher accuracy.

  Although several embodiments of the present invention have been described, these embodiments are provided by way of example and are not intended to limit the scope of the invention. These new embodiments can be implemented in other various forms, and various omissions, replacements, and changes can be made without departing from the spirit 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 their equivalents.

DESCRIPTION OF SYMBOLS 1 ... Elevator, 10 ... Car, 11 ... Car door, 12 ... Surveillance camera device, 13 ... Door opening / closing drive mechanism, 14 ... Door control device, 20 ... Elevator control device, 21 ... Moving body motion detection part, 22 ... Door Control instruction output section

Claims (6)

Connected to moving body information acquiring means for acquiring state information of the moving body in the elevator car,
The state information of the moving body in the car is acquired from the moving body information acquiring means, and based on the acquired information, a movement of a predetermined value or more toward the car door of the car existing in the car. A moving body operation detecting unit that detects a moving body that moves at a speed as a moving body that collides with the car door,
When the moving body motion detection unit detects a moving body that collides with the car door, the car door can be added to the car door in the door closing direction in a short time not more than a predetermined time in the door closing direction. A door control instruction output unit that outputs an instruction for applying a force of a value. The moving body operation detection unit predicts the timing at which the moving body and the car door collide from the detected distance from the moving body to the car door and the moving speed of the moving body,
The door control instruction output unit outputs an instruction to apply the force of the maximum value in the door closing direction to the car door before the timing predicted by the moving body operation detection unit arrives. The elevator control device according to claim 1, wherein: Connected to moving body information acquiring means for acquiring state information of the moving body in the elevator car,
Acquiring the state information of the moving object in the car from the moving object information obtaining means, based on the acquired information, present in the car, the moving body in contact with the car door of the car, Or, a moving body operation detection unit that detects a plurality of moving bodies whose distance to the car door is equal to or less than a predetermined value as a moving body close to the car door,
When the moving body operation detecting section detects a moving body close to the car door, the car door can be added to the car door in the door closing direction in a short time not more than a predetermined time in the door closing direction. A door control instruction output section for outputting an instruction to apply a force smaller than the value;
An elevator control device comprising: The moving body operation detection unit determines whether the moving body whose distance to the car door is equal to or less than a predetermined value is moving in the door opening direction,
The door control instruction output unit, when the moving body operation detecting unit determines that a moving body whose distance to the car door is equal to or less than a predetermined value is moving in the door opening direction, 4. The elevator control apparatus according to claim 3 , wherein an instruction to apply the maximum force in a door closing direction is output. The moving body motion detection unit acquires imaging information including state information of the moving body in the car taken by the camera device as the moving body information acquiring unit, and analyzes the acquired imaging information. The elevator control device according to any one of claims 1 to 4, wherein a moving body in the car is detected . Acquiring the state information of the moving body in the car from the moving body information acquiring means for acquiring the state information of the moving body in the car of the elevator, based on the acquired information, present in the car, When a moving object moving at a moving speed equal to or more than a predetermined value toward the car door of the car is detected as a moving object that collides with the car door, the car door is moved in the door closing direction for a short time equal to or less than a predetermined time. And outputting an instruction to apply a maximum value of force that can be applied in the door closing direction to the elevator.

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