JPH08172619A - Itv equipment - Google Patents

Abstract

PURPOSE: To provide an ITV equipment by which a composite signal and an information signal are sent through one transmission line. CONSTITUTION: A control section 28 of a transmission section 30 of the ITV equipment side receives a video signal picked up by a camera section 1 and sensing information representing an operating state of the camera section 1 and a turning base 3 or a connected sensor. Character data or graphic data corresponding to the operating state or the sensing information are selected from a database 25 and a composite section 30 composes the data to a prescribed location of the video signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ITV device, and more particularly to a transmission section for sending a signal to the outside.

[0002]

2. Description of the Related Art Generally, ITV is used for various purposes,
For example, it is used for monitoring people entering and exiting the gates of factories, monitoring inside supermarkets, monitoring windows at financial institutions, monitoring inside tunnels, etc.

FIG. 5 is a schematic configuration diagram of a conventional ITV system. The ITV device side includes a camera unit, a swivel base 3, and a transmission unit 5. The camera unit 1 includes a zoom lens, and outputs a captured video as a composite video signal (hereinafter simply referred to as a video signal). The swivel base 3 uses the vertical angle of the camera 1 and the rotation angle of its own as position information, and also inputs a composite video signal, a zoom signal, etc. from the camera unit 1 and outputs them to the transmission unit 5.

In addition to the video signal, the transmission section 5 has an operation state signal indicating the operation state of the camera section 1 and the swivel base 3 or a detection signal of various externally connected sensors (hereinafter collectively referred to as an information signal). , The video signal is transmitted to the monitoring side via the transmission line 6a, the information signal is transmitted to the monitoring side via the transmission line 6b, and the control signal from the monitoring side is transmitted to the transmission section via the transmission line 6c. This ITV device is, for example, an unmanned trolley,
Prepared for gates, ceilings, etc.

Next, the structure of the monitoring side will be described. The monitoring side
The transmission unit 9, the monitor 11, the controller 13, the computer 15, the synthesis unit 17, and the like.

The transmission unit 9 is connected to the transmission lines 6a, 6b and 6c, the video signal is output to the synthesizing unit 17 and the information signal is output to the computer 15, and the control signal from the controller 13 is transmitted from the transmission line 6c. To transmit.

The controller 13 sends a control signal for controlling zooming of the swivel 3 and the camera section 1 through the transmission section 9 through a dedicated transmission line 6c based on an instruction from the operator. The computer 15 inputs an information signal via the transmission unit 9, selects a character or a figure based on the information signal from the database, and outputs it to the synthesizing unit 17, for example, a turning angle, a moving distance, a zoom ratio, When the detection of the subject is input as an information signal, the computer 15 selects and outputs the character data corresponding to this information.

Further, in the case of a system which conveys the meaning of an information signal by a plurality of color-painted figures instead of characters, the color-painted figure corresponding to the information signal is selected.

The synthesizing unit 17 inputs a video signal (hereinafter referred to as a composite signal) from the transmitting unit 5 and character data or graphic data from the computer 15 and synthesizes them to display the character or graphic on the end side of the monitor. Was there.

[0010]

However, in the conventional ITV system, in the ITV device on the imaging side,
Since the composite signal and the information signal are sent to the monitoring side through their respective dedicated cables, there has been a problem that separate transmission lines are required respectively.

On the monitor side, character data or graphic data corresponding to this information signal is selected, combined into a composite signal, and displayed on a monitor. For this reason, there is a problem that a processing unit is required to synthesize a character or a graphic on the monitoring side.

The present invention has been made to solve the above problems, and an object thereof is to obtain an ITV device capable of transmitting a composite signal and an information signal with a single transmission line.

[0013]

An ITV apparatus according to the present invention is equipped with a camera for converting an imaged image of a subject into a video signal and outputting the video signal on a swivel base. ITV that transmits the detection information of the existing sensor
In the device, a transmission unit that outputs a drive signal to a camera and a swivel base, selects character data or a graphic corresponding to an operating state or a detection state from a database, and synthesizes the character data or the graphic data at a predetermined position of a video signal. It is equipped with.

In addition, the transmission unit measures time after detecting a horizontal synchronizing signal portion of the video signal, and when this time reaches a set time, synthesizes any data into the video signal as a predetermined portion. Is.

Further, the transmission section drives the camera and the swivel base on the basis of the control signal sent through the first transmission line, and outputs the combined video signal to the outside through the second transmission line. To be sent to.

[0016]

In the ITV device of the present invention, the transmission unit outputs a drive signal to the camera and the swivel base for driving, and at the same time, a video signal picked up by the camera and an operating state of the camera and the swivel base or a sensor connected thereto. The character data or figure data corresponding to the operating state or the detecting state is selected from the database, and the character data or figure data is combined with a predetermined portion of the video signal.

Further, the transmission section measures time after detecting the horizontal synchronizing signal portion of the video signal, and when this time reaches a set time, as a predetermined portion, any data is combined with the video signal. The video signal is a video including a video signal captured by the camera and character data or graphic data.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic configuration diagram of an ITV device of this embodiment. In the figure, 1 to 3 are the same as above.
Reference numeral 20 is a transmission unit. The transmission unit 20 includes an input processing unit 21,
The output processing unit 23, the database 25, the receiving unit 26, the control unit 28, the synthesizing unit 30, and the transmitting unit 32 are included.

The input processing section 21 inputs sensor signals from various sensors, position information of the swivel base 3, zoom signals of the zoom lens of the camera section 1, etc., and controls these signals (hereinafter referred to as information signals). Let 28 know.

The output processing section 23 outputs a drive signal for driving the swivel base 3 and the zoom lens based on the control signal from the control section 28.

The database 25 stores a plurality of character data or graphic data corresponding to information signals.

The receiving unit 26 receives and shapes the control signal from the monitoring side, and outputs it to the control unit 28. The control unit 28
Character data or graphic data in the database corresponding to the information signal from the input processing unit 21 is selected and output to the synthesizing unit 30.

The synthesizing unit 30 inputs a video signal, detects a horizontal synchronizing signal (hereinafter simply referred to as a synchronizing signal), measures a predetermined time, and synthesizes character data or graphic data from the control unit 28 into the video signal. And output from the transmission unit 32 to the monitoring side.

FIG. 2 is a schematic configuration diagram in which the present ITV device is connected to the monitoring side. As shown in the figure, the ITV device side and the monitoring side have no information signal transmission line 6b, and are connected by two transmission lines of a transmission line 6a and a transmission line 6c, and the monitoring side has a transmission unit 9 and a controller. 13 and the monitor 11 only.

Next, the operation will be described with reference to FIGS. FIG. 3 is a flow chart for explaining the operation of the embodiment.

The control unit 28 reads the information signal from the input processing unit 21 in accordance with the operation of the ITV device (S301),
Character data or graphic data (hereinafter referred to as information data) corresponding to the information signal is selected from the database 25 and output to the synthesizing unit 30 (S303). Next, the synthesizing unit 30
Inputs a composite signal, which is a video signal, from the camera unit 1 (S305), and determines whether or not a sync signal (which is a horizontal sync signal) of this composite signal is detected (S).
307). Next, the time t is measured (S309), and it is determined whether or not the measured time t reaches a predetermined time to (S311). When the time to is reached, the time t is reached (a) in FIG. As shown in, the information data passed from the control unit 28 is combined into a composite signal (S31).
3).

As shown in FIG. 4A, the character data or the graphic data is synthesized directly on the composite signal. This is because, for example, in the case of adopting the multiplexing method of placing on the composite signal, a multiplexing circuit for placing on the composite signal is required, and the monitoring side needs a means for separating this time. .

Next, it is determined whether or not one screen worth has been combined (S315). If one screen worth has not been combined, control is transferred to step S305 and the same processing as above is executed.

That is, the synthesizing process is performed for each composite corresponding to the scanning line.

If it is determined that one screen has been combined, it is determined whether the power is off (S317). If not, the control is moved to step S301 and the same processing as above is executed.

Therefore, since both the composite signal and the information data are sent to the monitoring side from the transmission line for the composited signal, as shown in FIG. Since the character or graphic is displayed at the position corresponding to the time to, it is not necessary to provide a processing unit for synthesizing on the monitoring side as in the conventional case.

In the above embodiment, the transmission section 20 on the ITV device side is explained outside the swivel base, but the transmission section of this embodiment may be provided inside the swivel base.

[0033]

As described above, according to the present invention, the transmission section on the ITV device side inputs the video signal picked up by the camera, the operating state of the camera and the swivel base, or the detection information of the connected sensor, By synthesizing character data or graphic data corresponding to the operating state or the detection information at a predetermined position of the video signal, the video signal and the detection information or the operating state can be transmitted by one transmission line. And I
The effect that the number of lines with the TV device side can be reduced is obtained.

Further, since the ITV side synthesizes the character data or the graphic data into the video signal, it is not necessary to carry out the processing for synthesizing on the monitoring side, so that the configuration on the monitoring side becomes simple. The effect is obtained.

Further, the transmitting unit measures time after detecting the horizontal synchronizing signal portion of the video signal, and when this time reaches the set time, as a predetermined portion, one of the data is combined with the video signal. , The video signal is a video image including the video signal captured by the camera and the character data or the graphic data. By changing the set time, the character or the graphic can be displayed at any position, and the detection information or the operation state can be displayed. The effect of not requiring a line for transmitting the signal is obtained.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of an ITV device of the present invention.

FIG. 2 is a schematic configuration diagram in which the ITV device of the present invention is connected to a monitoring side.

FIG. 3 is a flowchart illustrating the operation of the embodiment.

FIG. 4 is an explanatory diagram illustrating a composite signal and a monitor screen according to the present embodiment.

FIG. 5 is a schematic configuration diagram of a conventional ITV system.

[Explanation of symbols]

 1 camera part 3 swivel base 11 monitor 20 transmission part 25 database 28 control part 30 composition part

Claims (2)

[Claims] 1. An ITV device for mounting a camera for converting an imaged image of a subject into a composite video signal and outputting the composite video signal, and transmitting an operating state of the camera and the swivel base or detection information of a sensor connected thereto. In, while outputting a drive signal to the camera and the swivel, select the character data or graphics corresponding to the operating state or the detection state from the database, the character data or graphic data at a predetermined location of the composite video signal. An ITV device having a transmission unit for combining. 2. The transmitting unit measures time after detecting a horizontal synchronizing signal portion of the composite video signal, and when the time reaches a set time, the data of any one of the composite data is used as the predetermined portion. The ITV device according to claim 1, wherein the ITV device is synthesized with a video signal.