JPH01125694A - Supervision camera system - Google Patents

Abstract

PURPOSE:To correctly obtain confirmation without charging an excessive burden to a guard by providing a sensor to detect abnormality in a supervising area, providing a television camera which can freely change an image pickup angle, and controlling the image pickup angle according to an abnormality detecting output. CONSTITUTION:When a minimum leaving confirming signal is inputted from a room entering/leaving control system 11, a supervising control device 6 is ready for supervision. An abnormality detecting output (a) is inputted from a sensor 2 through a sensor signal receiving circuit 7 to a processing part 8. The processing part 8 confirms from which sensor the signal (a) is outputted, television cameras 3a and 3b are turned for the sensor through a camera control device 10 by rotating rotary stands 4a and 4b. The video of the farthest camera is displayed on a monitor 5, a buzzer is sounded, and the guard is awaken. The guard is not necessary to always attend to the monitor 5, and only checking the monitor 5 when he hears the buzzer is sufficient.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a surveillance camera system that monitors a predetermined space, such as a pill room, using a television camera.

(Conventional technology and its problems) As a conventional surveillance camera system of this type, multiple television cameras are operated at all times to take pictures within a certain surveillance area.
There is a system in which a security guard checks images displayed on a plurality of monitors provided corresponding to each of the television cameras at a predetermined location such as a remote control room.

However, with the system configured above, all images from multiple monitors must be constantly monitored, which not only imposes a heavy burden on security guards, but also poses a risk of overlooking abnormalities due to carelessness. There was a problem.

(Purpose of the Invention) This invention was made in order to solve the above-mentioned problems, and it is possible to easily and accurately confirm the occurrence of an abnormality and its contents without imposing an excessive burden on security guards. The purpose is to provide a surveillance camera system that can

(Means for Achieving the Object) In order to achieve the above object, a surveillance camera system according to the present invention is provided with a sensor for detecting an abnormality within a monitoring area, and a camera that can freely change the imaging angle within the monitoring area.
A television camera is provided to detect the abnormality, and a supervisory control device controls the imaging angle of the television camera according to the abnormality detection output from the sensor, and displays the image information on the monitor.

(Embodiment) FIG. 1 is a block diagram showing the overall configuration of a surveillance camera system that is an embodiment of the present invention.

This system is for monitoring a predetermined room 1, which is a monitoring area, from a remote control room, and a plurality of sensors 2 that detect the presence of people are distributed in the room 1. . As the sensor 2, for example, an infrared sensor that senses temperature changes when the human body moves can be used.

Furthermore, first and second television cameras 3a and 3b for capturing images of the room 1 are mounted, for example, at two corner portions 1a and 1b facing each other in the room 1, respectively. Further, each television camera 3a, 3b is provided with a rotary table 4a, 4b for changing the direction thereof.

On the other hand, the above-mentioned television cameras 3a are installed in the management room.

A monitor 5 is installed to display imaging information obtained by 3b. Reference numeral 6 denotes a monitoring control device for most effectively displaying an image on the monitor 5 in response to the abnormality detection signal a output from the sensor 2, which includes a sensor signal receiving circuit 7 and a sensor signal receiving circuit. A processing unit 8 outputs a predetermined control signal based on the output, and a television camera 3
a.

a video switcher 9 which selects one of the video signals V and V2 sent from 3b and inputs it to the monitor 5; and a camera control signal C output from the processing section 8.
and a camera control device 10 that operates the rotary tables 4a and 4b based on the following.

That is, this monitoring control device 6 includes a television camera 3a,
It has a control function for switching the video of 3b and displaying it on the monitor 5, and a function for controlling the imaging angle of the television cameras 3a and 3b. Further, this monitoring control device 6 is configured to
From the entrance/exit control system 11 that automatically checks whether a person enters or leaves the room, the final exit 1i11ii! It is configured to go into standby mode only after receiving a signal.

Next, the operation of this surveillance camera system will be explained with reference to the flowchart shown in FIG.

When a final exit confirmation signal, that is, a signal indicating that no one remains in the room 1, is input from the entry/exit management system 11 to the processing unit 8 of the supervisory control device 6, the supervisory control device 6 enters the monitoring mode, and first, the step In S1, the abnormality detection output a from the sensor 2 is sampled and input to the processing unit 8 via the sensor signal receiving circuit 7. The processing unit 8 constantly monitors the sampling input abnormality detection output a (step S2).
After confirming the operation of the sensor 2, in the next step S3, it is checked whether the abnormality detection output a is emitted from one sensor 2 or from a plurality of sensors 2. If it is confirmed that the light has been emitted from one sensor 2, the processing unit 8 sends each rotating platform 4a via the camera control device 10 so that each television camera 3a, 3b faces the position of that sensor 2. , 4b (step S4). Next, in step S5, the processing unit 8 controls the video switcher 9 to input the video signal of the television camera farthest from the abnormality detection position to the monitor 5. As a result, the monitor 5 displays an image from a television camera that can capture the abnormality detection position within the widest field of view. Then, in the next step S6, the processing unit 8 activates a warning device such as a buzzer (not shown), and the security guard listens to the warning sound generated from the buzzer and watches the image on the monitor 5. Therefore, the security guard does not need to be glued to the monitor 5 at all times, and at the very least, only needs to check the image on the monitor 5 when he hears the warning sound.

On the other hand, if it is confirmed in step S3 that the abnormality detection output a is emitted from two or more sensors 2,
The processing unit 8 processes each sensor 2 that is emitting the abnormality detection output a.
The camera control device 1 controls the television cameras 3a and 3b so that each television camera 3a, 3b faces a predetermined position corresponding to the positional relationship between the
A rotation command is given to each rotary table 4a, 4b through 0. In this case, the above-mentioned predetermined position is, for example, the abnormality detection output a
When there are two sensors 2 that emit , each television camera 3a, 3b may be directed to the farthest sensor position, or both television cameras 3a, 3b may be both directed to an intermediate position between the two sensors. Can be done. Then, the process moves to step S5, in which the video signal of the television camera farthest from the above-mentioned predetermined position is selected. Note that the video from another television camera can also be displayed on the monitor 5 by manual switching by the security guard.

In the system of this embodiment, even when a plurality of television cameras 3a and 3b share images of one monitoring area, the monitor 5 is configured to select and display only the image of one of the television cameras. , only one monitor 5 is required for one monitoring area. Also 1
Since it is only necessary to have one monitor 5 correspond to one monitoring area, for example, even when monitoring a large number of rooms, it is possible to monitor them simultaneously by providing the same number of monitors 5 as the number of rooms. Even in this case, at least you only need to check the image on monitor 5 when there is an alarm, so
The burden on security guards will not be that great.

(Effects of the Invention) As explained above, according to the surveillance camera system of the present invention, the optimum image is displayed on the monitor according to the abnormality detection output from the sensor. The effect is that the occurrence of an abnormality and its details can be easily and accurately confirmed without imposing a burden.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the overall configuration of a surveillance camera system according to an embodiment of the present invention, and FIG. 2 is a flow diagram showing the operation of the system. 1... Indoor (monitoring area), 2... Sensor, 3
a, 3b...TV camera, 5...monitor, 6.
・・Monitoring control device

Claims (4)

[Claims] (1) A sensor installed within a monitoring area to detect an abnormality, a television camera that captures an image within the monitoring area while changing the imaging angle, a monitor that displays information captured by the television camera, and an abnormality detection output of the sensor. What is claimed is: 1. A surveillance camera system comprising: a surveillance control device that controls the imaging angle of the television camera in accordance with the above, and displays the imaging information on the monitor. (2) A plurality of the television cameras are provided, and the monitoring control device selects the television camera according to the abnormality detection output of the sensor and displays the imaged information on the monitor. surveillance camera system. (3) The surveillance camera system according to claim 1 or 2, further comprising an abnormality alarm device that operates in response to an abnormality detection output of the sensor. (4) The surveillance camera system according to claim 1, 2, or 3, wherein the sensor is an infrared sensor.