JPH1083487A - Intruder detecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect a person staying near to a window surface part outside an intrusion inhibited area more than a prescribed time as a intruding slated person. SOLUTION: This device is constructed so that monitoring is performed by a black-and-white monitor camera 4 capable of shooting only a portion provided within the intrusion inhibited area which has the transparent window surface 3 as a part and irradiated with infrared rays. In this case, an infrared rays irradiator 13 for irradiating the infrared rays along by near to the transparent window surface 3 part at the outside of the intrusion prohibited area 2 is provided. Then, the person irradiated with the infrared rays in shot by the black-and-white monitor camera 4 and the presence of a shot person is detected by picture processing, and then, if it is judged that he is in a prescribed time staying state, that person is judged to be an intruder.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intruder detecting device for detecting a person trying to enter a prohibited area.

[0002]

2. Description of the Related Art A conventional intruder detection apparatus is configured such that a surveillance camera is installed in a no-entry area and a warning is issued when a person enters the no-entry area and this is photographed by the surveillance camera. . This will be described with reference to FIG.

FIG. 5 is a front view showing a surveillance camera portion installed in an intrusion prohibition area in a conventional intrusion detection device, and 17 is installed on a ceiling portion in a depth direction of a room so as to photograph the entire room obliquely. A surveillance camera that shoots on a normal color screen when the lights are on, automatically switches to a black and white screen when the lights are off, and can shoot black and white areas that are irradiated with infrared light, and 18 turns off the lights This is a whole room infrared irradiator that automatically irradiates infrared rays when the monitoring camera 17 switches to black and white photography.

FIG. 6 is an explanatory view showing an intruder detecting device by the surveillance camera. 6 is a process for capturing an image of a person in a video from the surveillance camera 17 by image processing and detecting that a crime is being committed. Device, 15 is a perpetrator, 19 is a monitoring room in which lighting is turned on or off, 21 is a monitoring camera 1
Normally, the entire monitoring room 19 is photographed in the photographing range 7. Reference numeral 22 denotes a night monitoring area where infrared rays from the whole room infrared irradiator 18 are radiated, 23 denotes a valuables storage provided in the monitoring room 19, and 24 denotes a processing device that is the offender 1
5 is a threatening utterance device that utters a content for urging the criminal to stop when he / she captures the number 5.

The surveillance camera 17 is provided so as to photograph the entrance and exit of the no-entry zone. The surveillance camera 17 produces a color image while the illumination of the surveillance room 19 is turned on, and a monochrome image while the illumination of the surveillance room 19 is turned off. It is automatically switched to take an image, and at the same time, the whole room infrared irradiator 18 is also configured to start infrared irradiation. When the perpetrator 15 enters the monitoring room 19, the perpetrator 15 is photographed in a color image in the daytime and a black and white video in the night, and the photographed image is processed by the processing device 6 to determine whether the perpetrator 15 is present. An intruder detection device has been proposed in which the intimidating voice device 24 issues an alarm to stop the crime if the device is in a stagnant state for a predetermined time thereafter.

[0006]

However, all of the conventional intruder detection devices capture the intruder after it has entered and issue an alarm, and the intruder quickly detects the purpose of intrusion (for example, stealing). If achieved, it is difficult to prevent this, and in such a case, there is a problem that the intruder detection device cannot perform its original function.

Further, even when a pedestrian outside the intrusion prohibited area or a security officer in the intrusion prohibited area passes through the window, the surveillance camera captures the signal and issues an alarm even if the person is not an intruder. In addition, it is necessary to confirm that the detected person such as an administrator is not an intruder.

The present invention has been made in view of such a conventional example. A first object of the present invention is to detect a person who stays for a predetermined time or more near a window outside an intrusion prohibited area as an intruder. It is an object of the present invention to provide an intruder detection device capable of performing such operations. A second object is to provide an intruder detecting device capable of detecting a person who has been stagnating for a predetermined time or more in a place set as a crime precaution area in a no-entry area as a perpetrator.

[0009]

The first object of the present invention is to provide an intruder detection device for monitoring by a camera provided inside an intrusion prohibited area partially having a window surface. Providing an illumination light irradiator that irradiates illumination light along the vicinity of the window surface, a person illuminated with the illumination light is photographed by the camera, and the presence or absence of the photographed person is detected by image processing. This can be achieved by providing a processing device that determines that the person is a prospective intruder when it is determined that the person is in a stagnant state for a predetermined time.

A second object of the present invention is to provide an intruder detection device for monitoring with a camera provided inside an intrusion prohibited area, wherein the detecting device illuminates a place set as a crime prevention area in the intrusion prohibited area. An illumination light irradiator for irradiating light is provided, a person illuminated with the illumination light is photographed by the camera, and the presence or absence of the photographed person is detected by image processing, and thereafter, it is determined that the person is in a stagnant state for a predetermined time. When done
This is achieved by providing a processing device that determines the person as the offender.

[0011]

Embodiments of the present invention will be described below.

FIGS. 1 and 2 show a first embodiment of the present invention.
FIG. 1 is a side view showing an intruder detection device according to the first embodiment of the present invention, and FIG. 2 is a plan view of the intruder detection device shown in FIG.

In these figures, parts that are the same as or equivalent to the parts shown in FIG.

1 is outside the no-go area, which is outside at night, and 2
Is a darkened room that is turned off at night,
Reference numeral 3 denotes a transparent window surface provided on a part of a side wall portion of the intrusion prohibited area 2 and 4 denotes a transparent window surface provided on a ceiling portion in the depth direction of the intrusion prohibited area 2 so as to photograph the entire transparent window surface 3 from an oblique direction. A black-and-white surveillance camera capable of photographing only a portion irradiated with infrared light inside and outside the dark room, 5 is a photographing range of the black-and-white surveillance camera 4, and 6 is a presence or absence of a person in the guard area photographed by the black-and-white surveillance camera 4. A processing device that detects by image processing and determines that there is an intruder or a perpetrator if there is a stagnation in the security area for a specified period of time. 7 is an intruder who is approaching the window, and 8 is outside the intrusion prohibited area. 1 passerby, 10
Is an outdoor infrared irradiator that is installed outside the window surface 3 and irradiates infrared rays in parallel to the window side surface, 11 is an intrusion warning area that is an infrared irradiation range of the outdoor infrared irradiator 10, and 12 is a processing device to enter. This is a threat utterance device that prompts the user to stop the intrusion when a person is detected.

A first embodiment of the intruder detecting device will be described.

When there is no person near the window 3, the black-and-white surveillance camera 4 is in a state where only the inside of the intrusion guard area 11 is imaged brightly. When a person is present in the intrusion guard area 11, infrared light strikes and is captured by the black-and-white surveillance camera 4, and the image is sent to the processing device 6. Measure the stagnation time,
Specified time, for example, intrusion alert area 1 where the possibility of intrusion is high
If a stagnation is detected for one minute or more in Step 1, the intruder 7 is determined to be an intruder, and appropriate content is uttered from the threatening and speaking device 12 so as to stop the intrusion.

FIGS. 3 and 4 show a second embodiment of the present invention.
FIG. 3 is a side view showing an intruder detection device according to a second embodiment of the present invention, and FIG. 4 is a plan view of the intruder detection device shown in FIG.

In these figures, the same or equivalent parts as those shown in FIGS. 1, 2, and 6 are denoted by the same reference numerals, and description thereof is omitted.

In the figure, reference numeral 9 denotes a valuables storage provided in the intrusion prohibited area 2, 13 denotes an indoor infrared irradiator for irradiating infrared rays near the valuables storage 9, and 14 irradiates infrared rays from the indoor infrared irradiator 13. The crime guard area 15 being set is a crime enforcer.

A second embodiment of the intruder detecting device will be described.

When there is no person in the vicinity of the valuables storage 9, the black-and-white surveillance camera 4 is in a state where only the crime prevention area 14 of the indoor infrared irradiator 13 is brightly photographed.
When a person enters the criminal security zone 14, infrared light strikes and is captured by the black-and-white surveillance camera 4, the image is sent to the processing device 6, the relevant person is detected by image processing, and furthermore, The stagnation time is measured, and if a stagnation is detected for more than one minute in the crime-prevention area 14 where the probability of a crime is large, for example, the crime is determined to be the offender 15 and the threatening voice device 16 appropriately stops the crime. Utter the appropriate content.

When the processing apparatus 6 of the above embodiment has been stagnated in the intrusion warning area 11 for a predetermined time, the processing apparatus 6 determines that the person is a prospective intruder 7 and provides an appropriate guidance to stop the intrusion from the intimidating voice emitting device 12. Function (A) to be implemented and crime detection area 1
If the person is stagnated for a predetermined period of time in
And the function (B) of performing appropriate guidance to stop the crime from the intimidating voice emitting device 16 is provided. However, the function (A) or the function (B) alone may be provided.
It has both the function (A) and the function (B), and depending on the size of the person photographed in the processing device 6, the intruder 7 or the offender 1
It may have a function of judging five.

In the above embodiment, the infrared illuminator 10 and the black-and-white surveillance camera 4 are used. However, it is possible to photograph only the illuminating light illuminated by the illuminating light illuminator and the illuminating light illuminated portion in the screen. A configuration using a simple camera may be used.

[0024]

As described above, according to the present invention, there is provided an intruder detecting apparatus for monitoring by a camera provided in an intrusion prohibited area partially having a transparent window surface.
According to the invention, an illumination light irradiator that irradiates illumination light along the transparent window surface outside the intrusion prohibited area is provided, and a person irradiated with the illumination light is photographed by the camera, and photographed. The presence or absence of a person is detected by image processing, and only when the person has been stagnated for a predetermined period of time, the person is determined to be an intruder, and appropriate guidance can be provided to prevent intrusion.

According to the second aspect of the present invention, there is provided an illumination light irradiator for irradiating illumination light along the vicinity of the valuables storage section inside the intrusion prohibited area, and a person illuminated with the illumination light is provided with the camera. In addition, the presence or absence of a photographed person is detected by image processing, and thereafter, when it is determined that the person is in a stagnant state for a predetermined time, the person is determined to be a perpetrator and appropriate to prevent the perpetrator. Guidance can be provided.

[Brief description of the drawings]

FIG. 1 is a side view showing an intruder detection device according to a first embodiment.

FIG. 2 is a plan view of the intruder detection device shown in FIG.

FIG. 3 is a side view showing an intruder detection device according to a second embodiment.

FIG. 4 is a plan view of the intruder detection device shown in FIG. 3;

FIG. 5 is a front view showing a conventional surveillance camera part.

FIG. 6 is an explanatory diagram showing a conventional intruder detection device using a monitoring camera.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outside the no-go area 2 Inside the no-go area 3 Transparent window 4 Black-and-white surveillance camera 6 Processing device 7 Expected intruder 8 Passenger 10 Outdoor infrared irradiator 11 Intrusion guard area 13 Indoor infrared irradiator 14 Crime guard area 15 Criminal offender

Claims (2)

[Claims] 1. An intruder detection device for monitoring by a camera provided inside an intrusion prohibited area partially having a window surface, wherein illumination light is emitted along the vicinity of the window surface outside the intrusion prohibited area. Providing an illumination light irradiator, the person irradiated with the illumination light is photographed by the camera, and,
An intruder detection device, comprising: a processing device that detects the presence or absence of a photographed person by image processing and, when it is determined that the person is in a stagnant state for a predetermined period of time, determines that the person is an intruder. 2. An intruder detection device for monitoring with a camera provided inside an intrusion prohibited area, wherein the detection device emits illumination light to a place set as a crime prevention area in the intrusion prohibited area. Providing a light irradiator, the person irradiated with the illumination light is photographed by the camera, and, by detecting the presence or absence of the photographed person by image processing, when it is determined that it is in a stagnant state for a predetermined time, An intruder detection device provided with a processing device for judging a person as an offender.