JP2012017167A - Crime prevention system for elevator and elevator control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crime prevention system for an elevator that can set a proper level by dynamically changing a crime prevention alarm level even in an elevator used by various kinds of unspecified people, and to provide an elevator control method.SOLUTION: The system includes a display part 102 that is installed near a door of the elevator that is supposed to be opened. Based on the image of a person who goes into the elevator, when there is only an person, an advertisement image determined according to facial recognition is displayed in the display part, and when there are persons, an alarm image which is an image in the elevator is displayed on the display part 102.

Description

  The present invention relates to an elevator security system and an elevator control method, and more particularly, to a technique for appropriately setting a security alert level.

  There is a problem that crimes and mischief are likely to occur inside the elevator car because the door is closed and isolated from the outside when the door of the car is closed. As invention which made it a subject to control a crime and mischief, there exists a thing of patent document 1, for example.

  In the invention described in Patent Document 1, an image display device is installed in a car, and a front face image when entering the device and a real-time image from the back when the door is closed are superimposed and displayed. It is thought that it is an idea that aims at a psychological suppression effect by showing that an action is recorded as a video to an elevator passenger who intends to commit a crime or mischief.

  However, installing a video display device in the car can increase the added value while increasing the cost. Even with the same elevator, some passengers are relatively safe and may not require strict security alerts. In such a case, only the disadvantage of cost increase remains. Moreover, even if it is comparatively safe and it is not necessary to strictly guard crime prevention, if a warning video is shown, the user will feel discomfort during daily use.

  Elevators are usually installed in common spaces in residential apartments and commercial buildings, and are often used by unspecified persons. In such a place, the display of the advertisement video may realize high added value of the elevator. For example, Japanese Patent Application Laid-Open No. 2004-151867 discloses prior art related to display of advertisement video.

Japanese Patent Laid-Open No. 2006-235311 JP 2008-127147 A

  Conventional elevator crime prevention systems that limit users or install crime prevention operation time zones are limited in application to condominiums and the like that allow users to be identified. There is a problem that it cannot be applied to elevators in facilities where an unspecified number of people come and go.

  The present invention has been made in view of the above circumstances, and can be set to an appropriate level by dynamically changing the security alert level even in an elevator used by an unspecified number of people. An object is to provide an elevator crime prevention system and an elevator control method.

  In order to achieve the above object, the present invention provides, as a first aspect, a display device installed in the vicinity of an elevator entrance to be opened next, and a person getting in from the entrance to the entrance of the elevator to be opened next Imaging means for picking up an image of the image, and an advertisement image determined based on face recognition when the number of persons is one by analyzing the image picked up by the imaging means when the number of persons is two or more. There is provided a security system for an elevator, characterized by comprising control means for controlling the display device to display a warning image that is an image inside the elevator imaged by the means.

  Further, the present invention provides, as a second aspect, a control device, a display device installed in the vicinity of the elevator opening to be opened next, and a person who gets into the elevator opening to be opened next from the boarding opening. An elevator control method having an image pickup means for picking up an image, wherein the control device analyzes the image picked up by the image pickup means, and the face recognition when the number of persons as a result of the analysis is one And a control step of controlling the display device to display a warning image that is an image in an elevator imaged by the imaging means when there are two or more advertisement images determined based on An elevator control method is provided.

  According to the present invention, it is possible to provide an elevator crime prevention system and an elevator control method capable of dynamically changing the security alert level to an appropriate level even in an elevator used by an unspecified number of persons. Is possible.

It is a figure which shows the hardware constitutions of embodiment of this invention. It is a figure which shows the function structure of embodiment of this invention. It is a flowchart which shows the procedure of the initial setting process of a crime prevention alert level in embodiment of this invention. It is a flowchart which shows the procedure of the dynamic change process of the crime prevention alert level at the time of operation | movement in embodiment of this invention. It is a figure which shows an example of the warning image | video in embodiment of this invention. It is a figure which shows the hardware constitutions of other embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Constitution)
FIG. 1 shows a hardware configuration of an elevator crime prevention system according to this embodiment.
FIG. 1 is a view showing the interior of an elevator car 1 looking down from above. The passenger car 1 is provided with a boarding port 2 for passengers to enter at least one side surface. An operation panel 3 is installed beside the entry port 2. The operation panel 3 has a button for operating the elevator and an emergency stop button for notifying an administrator or the like of an abnormality.

  The car 1 is further provided with an imaging unit 103 at a position where it can face the boarding port 2 from the inside and image a person boarding from the boarding port 2. The position and direction in which the imaging unit 103 is installed may be any as long as it can sufficiently capture a human face. For example, it is installed at a position about the height of an adult's head on the wall surface on the opposite side of the entry port 2, or at a corner position surrounded by three surfaces, the upper surface, the back surface, and the side surface. The direction is the direction facing the boarding port to be opened next (in FIG. 1, since there is only one boarding port, it is “boarding port 2” in FIG. 1).

  The video (still image or moving image) captured by the imaging unit 103 is input to the operation panel 3 connected by wire or wirelessly.

In FIG. 2, the function structure of the crime prevention system of the elevator of this embodiment is shown.
The operation panel 3 includes a control unit 101, a display unit 102, a voice detection sensor 104, and a braking unit 105.

  The control unit 101 is realized by an arithmetic device whose operation is controlled by a software program, and dynamically changes the security warning level of this elevator security system based on the video imaged by the imaging unit 103. Control and so on. Further, the control unit 101 performs face recognition or image recognition processing based on the video imaged by the imaging unit 103.

  The display unit 102 is realized by a liquid crystal display device or the like, and displays an advertisement video or a warning video described later under the control of the control unit 101. The display unit 102 may be implemented in the form of being installed outside the operation panel 3 (for example, a space above the entrance 2). In other words, the installation position of the display unit 102 is in the vicinity of the next entrance to be opened (in FIG. 1, there is only one entrance, so FIG. 1 is “entrance 2”). . Usually, since passengers of an elevator ride in the direction of the boarding gate to be opened next, when the display unit 102 is installed in the vicinity of the boarding port to be opened next, the display image of the display unit 102 is naturally seen by the passenger, and advertisement When the video is displayed, the advertising effect is high, and when the warning video is displayed, the crime suppressing effect is high.

The voice detection sensor 104 detects an abnormal voice such as a person's scream or a sound that breaks an object, or a voice such as a conversation between persons, and inputs the detection result to the control unit 101.
The braking unit 105 urgently stops the car 1 according to the control of the control unit 101.

  The elevator crime prevention system according to the present embodiment performs the following processing in the above configuration to achieve the object of the present embodiment. The processing according to the present embodiment is roughly divided into two types: a security warning level initial setting process and a security warning level dynamic change process in an elevator operation. Each will be described below.

(Initial setting process of security alert level)
FIG. 3 shows the procedure of this processing.
This process is automatically executed according to the frequency at which the administrator wants to dynamically optimize the security alert level, such as once every few hours.

When this process is started, the control unit 101 changes the security alert level according to the set “installation location” (step S101. Note that the level is raised, lowered, no change, and a specific level is set. For the sake of convenience, all the operations related to setting the security alert level are expressed as “change” for the sake of convenience).
The security warning level is low when people getting on and off can be specified to some extent, such as residential apartments, and the security warning level is low for buildings where a large number of unspecified persons enter and exit (for example, multi-purpose buildings with multiple izakayas) Make it high.
The security warning level is dynamically changed according to the “installation location” in the urban condominiums that are frequently used by SOHO residents during the daytime on weekdays and residents who live on nighttime holidays. It is convenient. In this case, the “installation location” setting may be changed according to time.

Next, the control unit 101 changes the security alert level in accordance with the set “car specification” (step S102).
For example, the security alarm level is lowered for a car that can carry many people, and the security alarm level is increased for a small number of people (e.g., eight passengers or less). That is, the security alert level is changed according to the maximum number of passengers in the car. This is because in the case of a narrow car, it is difficult to leave even if it feels dangerous.

Next, the control unit 101 changes the security alert level according to the current time when this process is performed (step S103).
It is better to increase the security alert level during night hours.

  Next, when someone has boarded the car 1, the control unit 101 transitions to a security warning level dynamic change process during elevator operation. If there is no boarding, the control unit 101 ends the process (steps S104 and 105).

(Dynamic change processing of security alert level during elevator operation)
FIG. 4 shows the procedure of this processing.
This process is automatically executed when it is detected that someone has entered the car 1 (for example, the opening operation of the boarding port 2 is detected).

  When this process is started, the control unit 101 first determines whether or not the security alert level is higher than a predetermined level (step S201). Since the security warning level is changed by the initial setting process executed according to the time, if the security warning level is sufficiently high, a warning video is immediately displayed on the display unit 102 (Yes in step S201).

When the security alert level is equal to or lower than a predetermined level, the following security alert level is dynamically changed.
First, the control unit 101 performs image recognition (or face recognition) of the video imaged by the imaging unit 103, and determines whether there is one passenger (step S202).
If there is only one person, an advertisement video is displayed (step S207). If there are two or more persons, in principle, for example, when one male gets into a place where one female is on board, a warning video is displayed. (Steps S203 to S206).

  Even if there are two or more passengers, if there are two passengers and there is a conversation between them, the advertisement is displayed as an acquaintance. Note that the voice detection sensor 104 picks up the conversation and notifies the control unit 101 that there is a conversation. Even if the passenger is only a woman, the advertisement is displayed on the assumption that it is safe. Whether or not the passenger is a woman is determined by face recognition.

  Note that the control unit 101 performs face recognition at the stage of step S202, but if face recognition cannot be performed due to wearing a hat or the like, an image that appears to be a person is followed by image recognition. A person who wears sunglasses or the like in an elevator is treated as a semi-suspicious person.

(Advertisement video)
The advertisement image displayed in step S207 displays an appropriate advertisement based on the parameters (gender, age, etc.) determined by the control unit 101 recognizing the face of the person in the car 1.
Since the advertisement video is thus determined based on information obtained by performing face recognition on the video imaged by the imaging unit 103, the advertising effect can be enhanced.

(Warning video)
FIG. 5 shows a display example of the warning video of this embodiment.
The alert video displayed in step S206 is dynamically displayed in accordance with the security alert level. When the security alert level is low, the real-time boarding status 110 is displayed (FIG. 5A). When the security alert level becomes high, the image data 120 from the front imaged at the time of boarding is displayed in an overlapping manner on the real-time boarding situation 110 (FIG. 5B). The real-time boarding situation 110 is an image in which a normal person shows the back of the head, but the face image data 120 of the front is pasted on the head.

According to the present embodiment described above, an appropriate level can be set by dynamically changing the security warning level even in an elevator used by an unspecified number of persons.
Therefore, since the image | video which suppresses a crime etc. can be displayed according to the crime prevention alert level which changes dynamically, the crime prevention suppression corresponding appropriately to the condition in an elevator is attained.
In particular, when the number of passengers is one or the like, an advertisement is displayed, and it becomes possible to reduce discomfort during daily use. This discomfort is an uncomfortable feeling caused by showing an excessive warning video.
Further, when the security warning level is relatively high, the front image of the person imaged by the imaging unit 103 facing the entrance 2 is displayed together with the simultaneous video in the car 1, so that the crime prevention effect is further enhanced. be able to.

(Security processing)
Furthermore, in this embodiment, when the security alarm level is high, when the voice detection sensor 104 detects a female scream (detected in a frequency band), the control unit 101 controls the braking unit 105 to immediately Stop the elevator on the first floor and contact emergency contact.
Therefore, even when a crime occurs, the elevator according to the present embodiment automatically takes countermeasures regardless of the operation of the passenger, such as pressing the emergency contact button, so that the crime can be kept light.

(If there are multiple entrances)
With reference to FIG. 6, a supplementary description will be given of the configuration when there are a plurality of elevator entrances. FIG. 6 shows a hardware configuration of the embodiment in such a case, and as shown in the figure, the car 1 has two entrances, an entrance 2a and an entrance 2b.

  The embodiment of FIG. 6 includes imaging units 103a and 103b and display units 102a and 102b corresponding to the respective entrances. And these are controlled so that the imaging part (or display part) corresponding to the boarding opening opened next performs an imaging operation (or display operation).

  A specific example will be described as follows. Assuming that the boarding port to be opened next is the boarding port 2a at a certain point in time, the imaging unit 103a operates to capture an image of a person who enters the boarding port 2a facing the boarding port 2a. The advertisement video based on the information obtained by recognizing the image captured here and the warning video are displayed on the display unit corresponding to the next entrance (which can be either the entrance 2a or 2b). Is done. Here, it is assumed that the entrance 2b opens next. Then, on the display unit 102b, which is a display unit corresponding to the boarding port 2b, an advertisement video and a warning video based on information obtained by recognizing the video captured when the boarding port 2a is opened are displayed. .

  Here, the warning video is a real-time boarding situation 110 captured by the imaging unit 103b corresponding to the entrance 2b. When the security warning level is high, the image data 120 from the front of the passenger based on the video imaged by the imaging unit 103a is displayed in the real-time boarding situation 110 in an overlapping manner.

  By performing such control, even in an elevator having a plurality of boarding openings, the effect of maintaining an appropriate security alert level can be obtained as in the case of an elevator with a single boarding entrance.

DESCRIPTION OF SYMBOLS 1 Boarding car 2 Boarding port 3 Operation panel 101 Control part 102 Display part 103 Imaging part 104 Voice detection sensor 105 Braking part

Claims (5)

  An elevator crime prevention system having a display device installed in the vicinity of an elevator entrance to be opened next, based on a face recognition in the case of one person based on an image of a person entering the elevator A crime prevention system for an elevator, wherein a warning image, which is an image in the elevator, is displayed on the display device when two or more people are in the image. A display device installed near the entrance of the elevator to be opened next;
An imaging means for capturing an image of a person who enters the entrance of the elevator to be opened and faces through the entrance;
An advertisement image determined based on face recognition when the number of persons is one by analyzing the image captured by the image capturing means is an image in the elevator imaged by the image capturing means when there are two or more people. Control means for controlling the display device to display a certain warning image;
An elevator crime prevention system characterized by comprising: The control means includes
In accordance with a security warning level that varies depending on time, when the security warning level is equal to or higher than a predetermined level and the control means performs control to display the warning video on the display device,
3. The elevator crime prevention system according to claim 2, wherein control is performed to display a face image of each person imaged by the imaging means in association with a corresponding person in the video together with a video in the elevator. Provided with a voice detection sensor that detects a voice representing an emergency and inputs the detection to the control means,
4. The elevator crime prevention system according to claim 2, wherein the control means performs control to stop the elevator at the nearest floor when the voice detection sensor inputs that a voice representing an emergency situation has been detected. . Control of an elevator having a control device, a display device installed in the vicinity of the entrance of the elevator to be opened next, and an imaging means for taking an image of a person who enters the entrance of the elevator to be opened next and faces from the entrance A method,
The control device is
Analyzing the video imaged by the imaging means;
As a result of the analysis, when the number of persons is one, the display device displays an advertisement image determined based on face recognition and a warning image that is an image in an elevator imaged by the imaging means when the number is two or more. The method of controlling the elevator characterized by including the step of performing control to display on the elevator.

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