JPH0421291A - Monitor for camera picture - Google Patents

Abstract

PURPOSE:To display an installation location of a camera onto a monitor or the like based on discrimination of a code signal by sending a video signal from a camera installed in an exit or entrance or the like together with a code signal representing the installation location of the camera so as to discriminate the code signal. CONSTITUTION:When a call button or the like of an operation section 2 provided in a section such as an interphone section is operated by a visitor or the like at first, a camera 1 is started by a signal from a control section 5 based on the operation to pick up the visitor or the like. The video signal from the camera 1 is sent via a mixer section 4 and inputted to a changeover section 6. A discrimination section 9 compares a code from a code generating section 3 inputted from the changeover section 6 with a camera code stored in a storage section 8 and discriminates the matched camera code and a control section 12 reads a display data such as 'front gatedoor' stored in the storage section 8. The display data is applied to a display signal generating section 10 to be a display signal.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a camera image monitoring device, and more particularly, to something that displays where an image displayed on the monitor device is an image taken by a camera installed.

[Prior Art] There is a system in which a house or the like has a plurality of entrances and exits, each of which is equipped with a door camera, and images from these cameras are appropriately switched and displayed on a monitor device. In such devices, the location of the camera installed in the image on the monitor device can be determined based on the background of the image, for example. , I accidentally misunderstood,
Appropriate responses may be missed. Therefore, when an image is displayed on a monitor, it would be possible to prevent such mistakes by displaying which camera the image was taken from, and the emergence of such a device has been desired.

[Problems to be Solved by the Invention] The present invention has been made in view of the above points, and it generates a signal that specifies the installation location for each camera, sends it together with the video signal from the camera, and uses this specified signal. The present invention provides a monitor device that performs identification on the monitor device side and displays which camera image it is based on this identification.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention includes a plurality of cameras that are activated by a predetermined operation by a visitor, etc., to image the visitor, etc., and output a video signal, and a plurality of cameras, which are activated by a predetermined operation by a visitor, etc., and output a video signal; A code generator that generates a code for specifying the location where the camera is installed, in a device consisting of a switching unit that switches to input the video signal based on the signal, and a monitor device that displays the video signal from the switching unit. a storage unit that stores a code for each camera installation location and display data corresponding to this code; and a determination unit that compares the code from the code generation unit with the code stored in the storage unit and determines a matching code. a display signal generation section that generates a display signal based on display data corresponding to the determined code; a display section that displays the signal from the display signal generation section; the storage section, the discrimination section, and the display signal generation section. and a control section that controls a display section.

[Operations] With the above configuration, in the camera image monitoring device according to the present invention, a video signal from a camera installed at an entrance or the like is sent together with a code signal indicating the installation location of this camera. This code signal is determined, and based on this determination, the location where the camera is installed is displayed on a monitor device or the like.

[Example] Hereinafter, an example of a camera image monitoring device according to the present invention will be described in detail based on the drawings.

FIG. 1 is a block diagram of essential parts of an embodiment of a camera image monitoring device according to the present invention. In the figure, l denotes a camera, which is installed, for example, at an entrance such as an entrance, and images a nuclear visitor and outputs a video signal. Reference numeral 2 denotes an operation section, which is installed, for example, as part of an intercom device near the camera 1, and is operated when a visitor or the like announces a visit. Reference numeral 3 denotes a code generation section, which is installed alongside the camera 1 and generates a code for specifying the camera 1. A mixing section 4 mixes the video signal from the camera 1 and the code signal from the code generation section 3. Reference numeral 5 denotes a control section which issues a control signal based on a signal generated by the operation of the operating section 2, and instructs the camera 1 to start up and the code generating section 3 to generate a code signal. A is a camera unit composed of the camera 1 to the control unit 5, which is located at multiple locations (A
In addition to B and C, etc.). Reference numeral 6 denotes a switching section which responds to the video signal from the camera section A etc. and performs switching so that this video signal is input. A monitor 7 displays an image of a video signal from a camera unit A or the like via a switching unit 6. Reference numeral 8 denotes a storage unit that stores the camera code specified for each camera 1, etc., and also stores data for displaying, for example, "down entrance" or "back entrance" etc. in the camera code corresponding to each camera. Memorize each time. 9
is a discrimination section which compares the code generated by the code generation section 3 and inputted through the mixing section 4 and the switching section 6 with the camera code stored in the storage section 8, and discriminates a matching camera code. IO is a display signal generation unit that reads display data corresponding to the camera code determined by the determination unit 9 from the storage unit 8 via the control unit 12 and generates a display signal.
11 is a display unit, for example, an LED (light emitting diode)
etc., and the control unit 1 displays “Go down to the entrance” or “Back exit j” according to the signal from the display signal generation unit 10.
Reference numeral 2 controls each section on the monitor side, which is the switching section 6 to the display section 11.

FIG. 2 is a partial block diagram of the monitor side of another embodiment of the camera image monitoring device according to the present invention.

In the figure, reference numeral 21 denotes a storage unit that stores the camera code specified for each camera 1, etc., as well as audio data such as a chime, etc. Audio data for announcing "I'm here" etc. is stored for each camera code corresponding to each camera. Reference numeral 22 denotes a discriminating unit which stores codes generated in the code generating unit 3 and input via the mixing unit 4 and the switching unit 6 into the storage unit 2.
1, compare it with the stored camera code and determine which camera code matches. Reference numeral 23 denotes an audio synthesis unit, which sends audio data corresponding to the camera code determined by the determination unit 22 to the control unit 25.
It is read out from the storage unit 21 via the storage unit 21 and synthesized into an audio signal. 24 is an audio output unit that outputs the signal from the audio synthesis unit 23 as sound through a speaker or the like. The control section 25 controls each section on the monitor side. The parts with other numbers are the same as those in FIG. 1, so explanations will be omitted.

FIG. 3 is a partial block diagram on the monitor side of another embodiment of the camera image monitoring device according to the present invention. In the figure, 31 is a storage unit that stores the camera code specified for each camera 1, etc., and is superimposed on the video signal from the camera, for example, a color subcarrier signal (3 , 58 MHz) or not.
It is stored in correspondence with the camera code of the set camera. 3
Reference numeral 2 denotes a determining unit that compares the code generated by the code generating unit 3 and input via the mixing unit 4 and the switching unit 6 with the camera code stored in the storage unit 31, and determines a matching camera code. Reference numeral 33 denotes a color/monochrome control section which reads a color/monochrome control signal corresponding to the camera code discriminated by the discrimination section 22 from the storage section 31 via the control section 34, and based on this signal, controls the color/monochrome control signal from the switching section 6. The monitor 7, which performs control such as removing or not removing the color subcarrier signal from the video signal, displays an image of the black and white video signal or the color video signal inputted via the color/monochrome control section 33.

Next, the operation of the camera image monitoring device according to the present invention will be explained. In FIG. 1, the display unit 11 displays where the image on the monitor 7 is taken from the camera.
First, when a visitor or the like operates, for example, a call button or the like on the operation unit 2 provided on the intercom unit or the like,
The camera 1 is activated in response to a signal from the control unit 5 based on this operation, and images a visitor or the like. The video signal from the camera 1 is sent out via the mixing section 4 and input to the switching section 6. On the other hand, by the operation of the operation section 2, the code generation section 3
generates a code indicating the installation location of camera 1, and
The signal is mixed with the video signal from the camera 1 and transmitted to the switching unit 6. Now, the switching unit 6 detects the video signal input from the camera 1, performs switching in response to this detection, and inputs the video signal from the camera 1. This switching section 6
The video signal switched is sent to the monitor 7 and displayed on a screen of a cathode ray tube or the like. Further, the code from the code generation unit 3 input via the switching unit 6 is compared with the camera code stored in the storage unit 8 by the determination unit 9, a matching camera code is determined, and based on this determination, the control unit 12 reads display data such as "front entrance j" stored in the storage section 8. Then, this display data is applied to the display signal generation section 10 to become a display signal, and the display section 11
In addition to this, the display is performed by, for example, lighting up an LED or the like that displays "front entrance".

Further, in FIG. 2, the location where the camera is installed is notified by the speaker of the audio output section 24 or the like. That is, the discrimination section 22 compares the code from the code generation section 3 superimposed on the video signal with the camera code stored in the storage section 21, discriminates the matching camera code, and corresponds to the discriminated camera code. For example, voice data such as "There is a visitor at the front entrance" is sent to the storage section 2 via the control section 25.
Then, this audio data is applied to the audio synthesis section 23 to synthesize it into an audio signal, and output it to the audio output section 24. For example, following a chime sound such as "Bing Pong", the above-mentioned "Come down and come to the entrance" sound is output. Outputs a sound such as "Desu".

In Figure 3, for example, the image from camera unit A is a color image and the image from camera unit B is a black and white image, and by displaying the image on the monitor in color or black and white, it is possible to determine which camera the image is from. This makes it possible to distinguish between the two. First, the determination unit 32 compares the code from the code generation unit 3 superimposed on the video signal with the camera code stored in the storage unit 31, and determines the matching camera code.
The control unit 34 reads out the color/monochrome control signal corresponding to the determined camera code from the storage unit 31, and the color/monochrome control unit 33 controls the camera 1 etc. if the read signal is a color side door signal. Outputs the color video signal as it is, projects a color image on the monitor 7,
In addition, if the read signal is a black and white control signal, the color subcarrier signal of the video signal from the camera 1 etc. is based on a clock signal etc. generated from the synchronization signal of the input video signal. This is removed using a reference signal so that the image displayed on the monitor 7 is not colored.

Although the display section 11 has been described as being composed of LEDs, etc., the display signal generation section 10 generates a character signal, synthesizes this character signal with a video signal, and displays it in the image on the monitor 7. You can do it like this.

[Effects of the Invention] As explained above, in the camera image monitoring device according to the present invention, the image displayed on the monitor is determined by the location of the camera installed in the vicinity of the monitor. The display section installed in the front entrance will display "Omote Entrance j, etc.," or these characters will be displayed superimposed on the monitor image, or the speaker will say "A visitor to the front entrance -
This is clearly indicated by outputting a sound such as "". Therefore,
For example, there is no need to stare blankly at the monitor, misunderstand where a visitor has come from, or lack promptness in response, and there is no confusion for those who are not used to using this device.

[Brief explanation of the drawing]

Fig. 1 is a main part block diagram of one embodiment of the camera image monitoring device according to the present invention, Fig. 2 is a partial block diagram of the monitor side of another embodiment of the same camera image monitoring device, and Fig. 3 is a partial block diagram on the monitor side of another embodiment of the same camera image monitor device. In the figure, 1 is a camera, 2 is an operation section, 3 is a code generation section, and 4
5.12.25 and 34 are control units; L6 is a switching unit; 7 is a monitor; 8.21 and 31 are storage units; 9.
22 and 32 are discrimination sections, 10 is a display signal component, 11
23 is a display unit, 23 is a speech synthesis unit, 24 is an audio output unit, 33
is the color/monochrome control section. Patent applicant Fujitsu General Ltd. Figure 2 Figure 3

Claims (3)

[Claims] (1) A plurality of cameras that are activated by a predetermined operation by a visitor, etc. to image the visitor, etc. and output a video signal, a switching unit that switches to input the video signal based on the video signal from the camera, and a switching unit. a code generating section that generates a code for specifying the location where the camera is installed, a code for each location where the camera is installed, and a display corresponding to this code; a storage unit that stores data; a determination unit that compares the code from the code generation unit with the code stored in the storage unit and determines a matching code; a display signal generation unit that generates;
1. A camera image monitoring device comprising: a display unit that displays a signal from a display signal generation unit; and a control unit that controls the storage unit, determination unit, display signal generation unit, and display unit. (2) The storage section stores a code for each camera installation location and audio data corresponding to this code, and synthesizes an audio signal based on the audio data corresponding to the code discriminated by the discrimination section. 2. The camera image monitoring device according to claim 1, further comprising an audio output unit that outputs the audio signal from the audio synthesis unit as a sound. (3) The storage unit stores a code for each camera installation location and a color/black-and-white control signal corresponding to the set code, and based on the color/black-and-white control signal corresponding to the code determined by the discrimination unit. A color/monochrome control section is provided for controlling whether or not to remove the color subcarrier signal from the video signal from the switching section, and the monitor device displays the video signal via the color/monochrome control section. A camera image monitoring device according to claim 1, characterized in that it is configured as follows.