JP2008050138A - Elevator control device - Google Patents

Abstract

To provide an elevator control device capable of safely and smoothly performing opening / closing control of a car door and a landing door.
An object of the present invention is to provide a photographing device 2 that is opposed to an elevator car door and is installed at an upper rear portion of the elevator car, and an elevator car door that is obtained from an image photographed by the photographing device 2. And passenger detection means 4 for outputting a door open signal when there is a passenger in a predetermined range when the landing door is opened, and a door close signal when there is no passenger in the predetermined range, and this passenger Door opening / closing control means 5 for controlling the opening of the elevator car door and the landing door by the door opening signal from the detection means 4 and for closing the elevator car door and the landing door by the door closing signal from the passenger detection means 4. This can be achieved by an elevator control device comprising:
[Selection] Figure 1

Description

  The present invention relates to an elevator control device, and more particularly to an elevator control device suitable for opening and closing an elevator car door and a landing door by detecting passengers in the elevator car and a landing.

  In this type of elevator control device, the opening / closing time and opening / closing speed of the elevator car door and landing door are made constant regardless of the type of passengers such as adults, children, elderly people, healthy people, and physical disabilities. Therefore, when children, elderly people, healthy people, and disabilities are passengers, the elevator car door and landing door opening and closing times and opening speeds are too fast, causing fear to the passengers. Alternatively, the car door and the landing door may be closed while getting on and off the car, causing a sense of danger. In addition, when a healthy person rushing to the destination floor is a passenger of an elevator, the opening / closing time of the car door and the landing door expires, or the car door and the landing door are closed by pressing the car close button. Otherwise, the car will not run, and the passenger may be frustrated.

Therefore, a plurality of phototubes are provided at the entrance of the elevator, and the moving speed (traveling speed) of the passenger is detected by using the difference in blocking time when the passenger crosses the light beam emitted from these phototubes. By detecting the height of the passenger by crossing the light beam emitted from a plurality of installed phototubes, the opening / closing time and opening / closing speed of the elevator car door and landing door can be adjusted for adults, children, elderly people, There has been proposed an elevator control device that can be varied according to the type of passenger such as a normal person or a physical disability (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 5-278777

  However, in the elevator control device described in the above-mentioned Japanese Patent Application Laid-Open No. 5-278777, since the photoelectric tube is used, the detection range is narrow, particularly when a plurality of passengers get on and off in a dumpling state, There is a problem that the moving speed (traveling speed) and the height of passengers are not detected correctly, and it is necessary to install multiple phototubes at the entrance of the elevator. There was a problem that.

  The present invention was made from the above-described prior art, and its main purpose is to safely open and close elevator car doors and landing doors using images taken by a photographing device without using a phototube. An elevator control apparatus is provided.

  A further object of the present invention is to provide an elevator control device that performs optimal door opening / closing control according to the type of passenger using an image photographed by a photographing device.

  In order to achieve the above main object, the present invention is directed to an imaging device installed opposite to an elevator car door and in the upper rear part of the elevator car, and an image taken by the imaging device. It is determined whether or not there is a passenger in a predetermined range when the car door and the landing door are opened, and if there is a passenger, a door open signal is output, and if there is no passenger in the predetermined range, a door close signal is output. A passenger detection means for outputting each, a door opening signal from the passenger detection means to control the opening of the elevator car door and the landing door, and a door closing signal from the passenger detection means to the elevator car door and the landing door. It is characterized by comprising at least door opening / closing control means for controlling the closing of the door.

  Furthermore, the present invention is characterized in that the predetermined range includes an area of a sill that guides a lower end portion of an elevator car door and a landing door.

  In order to achieve the above-mentioned further object, the present invention was photographed with a plurality of photographing devices installed on the rear upper part of the elevator car facing the elevator car door and the photographing device. From the image, it is determined whether or not there are passengers in a predetermined range when the elevator car door and the landing door are opened. If there are passengers, a door open signal is displayed. If there are no passengers in the predetermined range, the doors are displayed. Passenger detecting means for outputting a closing signal, and opening control of the elevator car door and landing door by the door opening signal from the passenger detecting means, and the elevator car door by the door closing signal from the passenger detecting means. And door opening / closing control means for closing the landing door, and image processing means for detecting the position, walking speed and height of the passenger from the image photographed by the photographing device; Passenger who determines the passenger type based on the position, walking speed and height of the passenger detected by the image processing means and outputs a speed command signal for instructing the door opening / closing speed according to the passenger type to the door opening / closing control means It is characterized by comprising at least determination means.

  Further, the present invention is characterized in that the predetermined range is an area in the vicinity of the car inner door, an area in the vicinity of the landing side door, an elevator car door, and a sill area that guides the lower end of the landing door.

  According to the present invention, when the passenger is in a predetermined range near the door, the opening / closing control of the car door and the landing door is safely and smoothly performed so as not to close the car door and the landing door of the elevator. An elevator control device is obtained.

  Furthermore, according to the present invention, by changing the door opening / closing speed of the elevator car door and the landing door in accordance with the moving speed of the passenger, the door closing is performed for passengers such as elderly persons and sick persons whose moving speed (walking speed) is slow. By reducing the speed, an elevator control device can be obtained that can improve the safety of passengers such as elderly people and sick people.

  Hereinafter, an embodiment example of an elevator control device according to the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is a block diagram showing a main configuration of an elevator control device according to an embodiment of the present invention. FIG. 2 is a flowchart for explaining the operation of the elevator control apparatus according to the embodiment of the present invention. FIG. 3 is a block diagram showing a main configuration of an elevator control device according to another embodiment of the present invention. FIG. 4 is a flowchart for explaining the operation of the elevator control apparatus according to another embodiment of the present invention.

  An elevator control device according to an embodiment of the present invention shown in FIG. 1 includes a photographing device 2 composed of a security camera installed on the rear upper part in an elevator car 1 so as to face an elevator car door 3, and this When there is a passenger in a predetermined range C when the elevator car door 3 and the landing door 3A are opened from the image captured by the imaging device 2, a door open signal (passenger presence signal) is set and the predetermined range C is set. When there is no passenger, the passenger detection means 4 outputs a door closing signal (no passenger signal), and the elevator car door 3 and the landing door 3A by the door opening signal (passenger presence signal) from the passenger detection means 4. Door opening / closing control for controlling the elevator car door 3 and landing door 3A to be closed by a door closing signal (passenger no signal) from the passenger detection means 4 The stage 5 includes at least. Here, the predetermined range C is set to a range including a sill area (hereinafter referred to as a C area) that guides the lower ends of the elevator car door 3 and the landing door 3A. In FIG. 1, reference numerals 8, 8 </ b> A, and 8 </ b> B represent passengers who use the elevator car 1.

  In the elevator car 1 or hall, to give voice announcements to passengers 8, 8A, 8B regarding guidance regarding elevator use, such as “Please leave the car door 3 and the landing door 3A”. Broadcasting apparatus (not shown) is installed. The detection of the presence or absence of a passenger by the passenger detection means 4 is detected by a change in luminance of an image transmitted from the photographing apparatus 2.

  The operation of the elevator control device according to an embodiment of the above configuration will be described with reference to FIG.

  First, as shown in step SA1 of FIG. 2, when the car 1 reaches the destination floor (stops at the destination floor), the car door 3 and the landing door 3A are opened (door) as shown in step SA2 of FIG. Open).

As shown in step SA2 of FIG. 2, when the car door 3 and the landing door 3A are opened,
Proceeding to step SA3 in FIG. 2, passengers 8, 8A and 8B are started to get on and off, and their boarding and exiting operations are photographed by photographing device 2 (starting of getting on and off), and the images photographed by photographing device 2 are passenger detection Input (transmitted) to the means 4.

  In the passenger detection means 4, when an image photographed by the photographing device 2 is input (received), as shown in step SA4 in FIG. 2, a coordinate axis is assigned to the image, and a C area is set. It is determined whether or not there are passengers in the C area, that is, whether or not there are passengers in the C area (C area detection).

  If it is determined in step SA4 in FIG. 2 that there are no passengers in area C, when a door closing signal (no passenger signal) is output from the passenger detection means 4 to the door opening / closing control means 5, the door opening / closing control means. 5, the elevator car door 3 and the landing door 3A are controlled to be closed, and the elevator car door 3 and the landing door 3A are closed at a high speed as shown in step SA7 in FIG.

  If it is determined in step SA4 in FIG. 2 that there are passengers in area C, the process proceeds to step SA5 in FIG. 2 to determine whether passengers are staying in area C, that is, passengers staying in area C. Is determined (C area retention).

  If it is determined in step SA5 in FIG. 2 that the passenger is staying in the area C, the process proceeds to step SA6 in FIG. 2, and an announcement command is output from the passenger detection means 4 to a broadcasting device (not shown). Then, for example, a broadcast saying “Please leave the car door 3 and the landing door 3A” is performed, and the passengers 8, 8A, 8B are urged to prevent staying in the C area and the passenger detection means 4 The door opening / closing control means 5 outputs the door opening signal (passenger presence signal) until the passengers 8, 8A, 8B disappear from the C area. The car 1 is kept on standby at the destination floor with the door 3A opened until the passengers 8, 8A, 8B disappear from the C area.

  In step SA5 of FIG. 2, when it is determined that the passenger does not stay in the area C, a door closing signal (passenger no signal) is output from the passenger detection means 4 to the door opening / closing control means 5. The door opening / closing control means 5 controls closing of the elevator car door 3 and the landing door 3A, and as shown in step SA7 in FIG. 2, the elevator car door 3 and the landing door 3A are closed at high speed.

  As described above, according to the elevator control device of the above-described embodiment, the presence / absence of passengers in the area C is determined based on the image captured by the imaging device 2, and the elevator car door 3 and the landing door 3A are opened and closed. Since the operation is performed, it is possible to prevent the passengers 8, 8A and 8B from being caught between the car door 3 and the landing door 3A, thereby improving the safety of the elevator and smoothly opening and closing the car door 3 and the landing door 3A. Can be done. In addition, according to the elevator control device of the above-described embodiment, in the case of an elevator with a security camera, the security camera can be used as the imaging device 2, so that it is necessary to newly install the imaging device 2. No cost can be achieved.

  Next, an elevator control apparatus according to another embodiment of the present invention shown in FIG. 3 is provided with a plurality of stereo cameras that are opposed to an elevator car door and that are installed on the rear upper part of the elevator car. When there is a passenger in a predetermined range when the elevator car door and the landing door are opened from the imaging devices 2A and 2B and images captured by the imaging devices 2A and 2B, a door opening signal is output and the predetermined range When there are no passengers, the passenger detection means 4 for outputting a door closing signal, the elevator car door and the landing door are controlled to open by the door opening signal from the passenger detection means 4, and the passenger detection means Photographed by the door opening / closing control means 5 for controlling the elevator car door 3 and the landing door 3A to be closed by the door closing signal 4 and the photographing devices 2A and 2B. The image processing means 6 for detecting the position, walking speed and height of the passengers 8, 8A and 8B from the image, and the passenger based on the position, walking speed and height of the passengers 8, 8A and 8B detected by the image processing means 6 Passenger determination means 7 for determining a type and outputting a speed command signal for instructing a door opening / closing speed according to the passenger type to the door opening / closing control means 5 is provided. Here, the predetermined range is an area A (hereinafter referred to as A area) in the vicinity of the car door 3 on the car 1 side, an area B (hereinafter referred to as B area) in the vicinity of the landing door 3A on the landing side, It is set in a range including a sill area C (hereinafter referred to as C area) for guiding the lower ends of the elevator car door 3 and the landing door 3A. In FIG. 3, reference numerals 8, 8 </ b> A, and 8 </ b> B represent passengers who use the elevator car 1.

  In the elevator control device shown in FIG. 3, as in the elevator control device shown in FIG. 1, the detection of the presence or absence of passengers by the passenger detection means 4 is detected by the change in luminance of the images transmitted from the photographing devices 2A and 2B. It is. Also, at the elevator car 1 or the landing, a voice announcement is given to the passengers 8, 8A, 8B regarding guidance regarding the use of the elevator, for example, “Please leave the car door 3 and the landing door 3A”. A broadcasting device (not shown) for performing is installed.

  When the images taken by the photographing devices 2A and 2B are input, the image processing means 6 measures the distance information and height information to the object and the time information of the distance information to the object according to the principle of stereo measurement. By calculating the moving speed based on the displacement amount, the position, walking speed and height of the passengers 8, 8A and 8B are detected, and the position, walking speed and height data of the passengers 8, 8A and 8B are detected by the passenger judging means 7. It is configured to output to. Passenger determination means 7 compares the position, walking speed, or height data of passengers 8, 8A, 8B output from image processing means 6 with respective threshold values stored in advance, so that adults, children, elderly people Etc., and the door opening / closing speed corresponding to the passenger type is commanded.

  The operation of the elevator control device according to another embodiment of the above configuration will be described with reference to FIG.

  First, as shown in step S1 of FIG. 4, when the car 1 reaches the destination floor (stops at the destination floor), the car door 3 and the landing door 3A are opened (door) as shown in step S2 of FIG. Open).

  As shown in step S2 of FIG. 4, when the car door 3 and the landing door 3A are opened, the process proceeds to step S3 of FIG. The images taken by the photographing devices 2A and 2B are input (transmitted) to the passenger detection means 4.

  In the passenger detection means 4, when the images taken by the photographing devices 2A and 2B are inputted (received), as shown in step S4 of FIG. And the C area are set, and whether or not there are passengers in the A area and the B area, that is, the presence or absence of passengers in the A area and the B area is determined (A and B area detection).

  If it is determined in step S4 in FIG. 4 that there are no passengers in area A and area B, the process proceeds to step S12 in FIG. A closing signal (no passenger signal) is output. Then, when a door closing signal (no passenger signal) is input to the door opening / closing control means 5, the door opening / closing control means 5 controls the closing of the elevator car door 3 and the landing door 3A, and step S13 in FIG. As shown, the elevator car door 3 and the landing door 3A are closed at a normal speed.

  If it is determined in step S4 in FIG. 4 that there are passengers in area A and area B, the process proceeds to step S5 in FIG. 4 to determine whether there are passengers in area C, that is, in area C. The presence or absence of a passenger is determined (C area detection).

  If it is determined in step S5 in FIG. 4 that there is no passenger in the area C, the process proceeds to step S12 in FIG. No signal) is output. When the door closing signal (no passenger signal) is input to the door opening / closing control means 5, the door opening / closing control means 5 controls the elevator car door 3 and the landing door 3A to be closed, and step S13 in FIG. As shown, the elevator car door 3 and the landing door 3A are closed at a normal speed.

  If it is determined in step S5 in FIG. 4 that there are passengers in area C, the process proceeds to step S6 in FIG. 4 to determine whether or not passengers are staying in area C, that is, passengers in area C. The presence or absence of staying is determined (C area staying).

  If it is determined in step S6 in FIG. 2 that the passenger is staying in the area C, the process proceeds to step S7 in FIG. 4, and an announcement command is output from the passenger detection means 4 to a broadcasting device (not shown). For example, a broadcast message “Please leave the car door 3 and the landing door 3A” is given to the passengers 8, 8A, 8B to prevent them from staying in the area C, and the passengers 8, 8A. , 8B is output from the passenger detection means 4 to the door opening / closing control means 5 until the door opening / closing control means 5 is output until the door opening / closing control means 5 stops the elevator car door 3 and the landing. The car 1 is kept on the destination floor while the door 3A remains open until the door 3A is no longer in the area C.

  If it is determined in step S6 in FIG. 4 that the passenger is not staying in the area C, the process proceeds to step S8 in FIG. 4 to determine the height of the passenger. For example, the passenger determination means 7 compares the height data of the passengers 8, 8A, 8B output from the image processing means 6 with the threshold value stored in the passenger determination means 7 in advance, so that passengers who are adults or children Determine the type.

  If it is determined in step S8 in FIG. 4 that the height is low, it is determined that the passenger is a child, and the process proceeds to step S11 in FIG. 4, where the elevator car door 3 and the landing door 3A are closed at a low speed. . If it is determined in step S8 in FIG. 4 that the height is high, the process proceeds to step S9 in FIG. 4 to determine the passenger moving speed (passenger walking speed determination).

  If it is determined in step S9 in FIG. 4 that the moving speed of the passenger is slow, it is determined that the passenger is an elderly person or a disabled person, and the process proceeds to step S11 in FIG. 4 to move the elevator car door 3 and the landing door. 3A is closed at low speed. Further, if it is determined in step S9 in FIG. 4 that the moving speed of the passenger is fast, it is determined that the passenger is an adult healthy person, and the process proceeds to step S10 in FIG. 4 to move the elevator car door 3 and the landing door. 3A is closed at high speed.

  As described above, according to the elevator control device of the other embodiment, the door is detected by detecting the walking speed and height of the passengers 8, 8A, 8B from the images obtained by the plurality of imaging devices 2A, 2B. Since the opening / closing speed of the vehicle is made variable, optimal door opening / closing control according to the walking speed and height of the passengers 8, 8A, 8B can be performed.

It is a block diagram which shows the principal part structure of the elevator control apparatus which concerns on one Embodiment of this invention. It is a flowchart explaining operation | movement of the elevator control apparatus which concerns on one Embodiment of this invention. It is a block diagram which shows the principal part structure of the elevator control apparatus which concerns on other embodiment of this invention. It is a flowchart explaining operation | movement of the elevator control apparatus which concerns on other embodiment of this invention.

DESCRIPTION OF SYMBOLS 1 Passenger car 2, 2A, 2B Image pick-up device 3 Car door 3A Landing door 4 Passenger detection means 5 Door open / close control means 6 Image processing means 7 Passenger judgment means 8, 8A, 8B Passenger

Claims (4)

  A photographing device installed opposite the elevator car door and in the upper rear part of the elevator car, and a predetermined range when the elevator car door and the landing door are opened from the image photographed by this photographing device Passenger detection means for outputting a door open signal when there is a passenger and a door close signal when there is no passenger in the predetermined range, and this passenger detection means Door opening / closing control means for controlling the opening of the elevator car door and the landing door according to the door opening signal from the passenger detection means, and for closing the elevator car door and the landing door according to the door closing signal from the passenger detection means. An elevator control device characterized by   2. The elevator control apparatus according to claim 1, wherein the predetermined range includes an area of a sill that guides a lower end portion of an elevator car door and a landing door.   When the elevator car door and the landing door are opened from the images taken by this camera and the multiple imaging devices installed in the upper rear of the elevator car facing the elevator car door Passenger detection means for determining whether or not there are passengers in the predetermined range and outputting a door open signal when there are passengers, and a door close signal when there are no passengers in the predetermined range, and this Door opening / closing control means for controlling the opening of the elevator car door and the landing door by the door opening signal from the passenger detection means, and for closing the elevator car door and the landing door by the door closing signal from the passenger detection means; Image processing means for detecting a passenger's position, walking speed and height from an image photographed by the photographing device, and the position and step of the passenger detected by the image processing means. Passenger determination means for determining a passenger type based on speed and height and outputting a speed command signal for instructing a door opening / closing speed according to the passenger type to the door opening / closing control means is provided. Elevator control device. 4. The elevator control according to claim 3, wherein the predetermined range is an area in the vicinity of a car inner door, an area in the vicinity of a landing side door, an elevator car door, and a sill area that guides a lower end of the landing door. apparatus.

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