JPH10218517A - Elevator image monitor system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator image monitor system for clearly image a criminal. SOLUTION: An elevator image monitor system involves a television camera 12 at an elevator hall 2 and passive sensors 31 and 32 near the doorway of a car 1. The direction and shooting area of the camera 12 is controlled with a controller 30 corresponding to the detection by the sensors 31 and 32 to record images in the hall 2 with a video recorder 22. At the occurrence of a crime, the images in the recorder 22 are collated with those recorded with another video recorder 21 by means of another television camera 11 arranged inside the car 1 to form clear images.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator image monitoring system, and more particularly to an elevator image monitoring system for monitoring crime occurring in a car.

[0002]

2. Description of the Related Art In general, an elevator car is easily closed by a crime against a user because the elevator car is closed during driving. An elevator image monitoring system is provided as a means of preventing crime.However, in the conventional elevator image monitoring system, a TV camera is mounted in the elevator car, and the elevator car is monitored by a TV monitor provided in a management room or a hall. The situation inside was monitored by a manager or other users, and in the case of a high-rise apartment house, residents in the vicinity could be monitored. However, the installation of the TV camera in the car is limited by the ceiling, so it is impossible to avoid the blind spot of the TV camera in a narrow car. Was not able to catch the face of the criminal, and often was not a decisive factor in the criminal arrest. Therefore, a monitoring system using a convex mirror as disclosed in JP-A-3-243581 is also introduced.

[0003]

However, the conventional elevator image monitoring system can eliminate the blind spot of the television camera by installing a convex mirror or using a wide-angle lens as described above. The criminal's face cannot be clearly recorded because the criminal's face is hidden behind the victim because of being inside, or the image is distorted because it is shot at a wide angle, In many cases, an effective image cannot be recorded.

An object of the present invention is to provide an elevator image monitoring system capable of obtaining a clear image of a criminal.

[0005]

In order to achieve the above object, the present invention provides an elevator image monitoring system for arranging a photographing device and a recording device in a car of an elevator, and photographing and recording the situation in the car. , A photographing device for photographing a pedestrian is provided at a landing of an elevator, and a recording device for recording an image of the photographing device is provided.

As described above, in the elevator image monitoring system of the present invention, since the photographing device and the recording device are arranged at the landing near the car, the appearance of the pedestrian approaching the elevator landing can be clearly grasped. In the event of a crime, even if the image of the recording device that recorded the image in the car was unclear or if the criminal could not catch the criminal's face behind the victim, By collating the image of the pedestrian at the landing with the image of the recording device, it is possible to obtain, from the images of the pedestrian at the landing, a clearly captured image that can identify the criminal.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of an elevator image monitoring system according to an embodiment of the present invention. A television camera 11 as a photographing device installed in the elevator car 1 is connected to a video deck 21 as a recording device via a signal line 51, and an image of the car 1 photographed by the television camera 11 is recorded on the video deck. 21 is recorded. A television camera 12 as a photographing device is also installed at the elevator landing 2, and the television camera 12 is connected to the VCR 22 via a signal line 52, and an image of the elevator landing 2 taken by the television camera 12. Is recorded on the video deck 22. At the landing 2, a plurality of passive sensors 31, 32, which are detectors, are arranged at predetermined intervals toward the entrance of the car 1, and these passive sensors 31, 32 are connected to the control device 30 via a transmission line 53. Have been. The control device 30 is connected to the television camera 12 via the transmission line 54 and controls the direction of the television camera 12 according to the passive sensors 31 and 32 that have detected the positions of the pedestrians 41 to 43 so as to shoot. ing.

FIG. 2 is a flowchart showing a method of controlling the orientation of the television camera 12 performed by the control device 30.
The control device 30 constantly determines the presence / absence of the detection signals of the passive sensors 31 and 32. In step S1, the passive sensor 31 does not detect, and in step S2, the passive sensor 32 does not detect. If so, in step S5, the direction of the television camera 12 is controlled to an angle at which the pedestrian 43 farther than the passive sensor 32 in FIG. Now, when the pedestrian approaches the car 1 and comes to the position of the pedestrian 42 shown in FIG. 1, the passive sensor 32 detects in step S2.
At 4, the television camera 12 controls the angle so that the pedestrian 42 near the passive sensor 32 can be photographed. Further, when the passive sensor 31 detects the pedestrian 41 in step S1, the television camera 12 is controlled to an angle such that the pedestrian 41 near the passive sensor 31 can be photographed in step S3. Therefore, car 1
TV camera 1 by clearly capturing the pedestrian before riding
2 and can be recorded on the VCR 22 via the signal line 52.

When a large number of pedestrians receive the passive sensors 31 and 3
If both of them are being detected, it is determined that the detection of the passive sensor 31 near the landing in step S1 is prioritized, and the direction of the television camera 12 is controlled so that the pedestrian 41 near the landing is photographed. I am trying to do it.
In this way, since the direction of the television camera 12 can be changed in conjunction with the position of the pedestrian 41 from the pedestrian 43 who approaches the elevator platform 2 and uses the elevator, the appearance of the pedestrian is clearly shown. The image can be captured and recorded on the VCR 22.

On the other hand, the inside of the car 1 is photographed by a television camera 11, and the image is recorded on a video deck 21.

Therefore, when a crime occurs in the car 1, the image recorded on the VCR 21 as a recording device is reproduced and examined, but the image is unclear or the criminal is the victim. Even if it is not possible to catch the criminal's face because of the shadow of the criminal, the image can be collated with the image of the VCR 22 which is the recording device of the television camera 12 which is the photographing device for photographing the pedestrian at the platform 2. TV camera 1
In the photographing by No. 2, since the pedestrian at the landing is clearly photographed, a clear image from which the culprit can be identified can be obtained.

In the present embodiment, the television camera 12 for photographing the hall 2 is installed only on the floor serving as the exterior entrance of the building, but it may be installed on the halls on all floors. The number of passive sensors 31 and 32 for detecting the position of the pedestrian and controlling the direction of the television camera 12 is not limited to two, and at least one passive sensor may be provided. Furthermore, if the landing 2 is wide and it is difficult to capture the pedestrian's appearance only by controlling the direction of the TV camera 12, if the control of enlarging or reducing the shooting range of the TV camera 12 is performed based on the detection positions of the passive sensors 31, 32, The image of the pedestrian can be clearly recorded. Further, the images of the television cameras 11 and 12 may be transmitted to a monitoring center for centrally monitoring equipment in a building located at a location remote from the building using a telephone line or the like.

[0013]

As described above, in the elevator image monitoring system of the present invention, at least one detector is provided at the landing near the entrance of the car, and at the landing in accordance with the detector that has detected a pedestrian. The direction of the photographing device such as a television camera provided was controlled, and the photographed image was recorded on a recording device such as a VCR, so that the appearance of pedestrians using the elevator approaching the elevator platform was clearly identified. The image of the recording device that recorded the image in the car at the time of the crime was unclear or the criminal could catch the criminal's face in the shadow of the victim Even if it is not necessary, a clear image that can identify the culprit can be obtained by collating with the image of the recording device of the photographing device that photographed the pedestrian at the landing.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an elevator image monitoring system according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a control method of a television camera installed at a landing of the elevator image monitoring system shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Riding car 2 Platform 11 and 12 TV camera 21 and 22 VCR 30 Control device 31 and 32 Passive sensor

Claims (3)

[Claims] 1. An elevator image monitoring system for arranging a photographing device and a recording device in a car of an elevator and photographing and recording the situation in the car, comprising: a photographing device for photographing a pedestrian at a platform of the elevator; An elevator image monitoring system, comprising: a recording device provided for recording an image of the photographing device. 2. The control device according to claim 1, wherein a plurality of detectors for detecting a pedestrian are arranged at the landing, and a direction and a photographing range of the photographing device are controlled in conjunction with the detectors. An elevator image monitoring system, comprising: 3. The apparatus according to claim 1, wherein a plurality of detectors are arranged at predetermined intervals at the landing to detect a pedestrian approaching the car, and the photographing is performed in conjunction with the detectors. An elevator image monitoring system, comprising a control device for controlling a direction of the device and a photographing range.