JP2001144705A - System for controlling video switcher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vide switcher control system which makes rearranged material allocation remain as it is in case of a failure in a video switcher and also prevents the discontinuities in of materials from taking place. SOLUTION: The video switchers 4 switches material. A video switcher controlling part communicates with the switcher 4 via a control LAN 7. A material display video switcher control button 2 rearranges and displays the materials. An operation panel controls and displays the allocation of the materials. An emergency video switcher 5 switches the materials in emergency. An emergency video switcher controlling part 6 controls the switcher 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video switcher control system, and more particularly to a video switcher control system capable of switching materials when an emergency occurs in a studio system such as a broadcasting station.

[0002]

2. Description of the Related Art In general, broadcast video equipment, particularly studio equipment for live broadcasting, uses an emergency video switcher which operates when a video switcher fails, in addition to a video switcher which normally operates.

In this case, the material rearrangement information from each video device is held in the control system of the video switcher, and the emergency video switcher does not recognize the rearrangement information.

An example of such a technique is disclosed in
An "emergency circuit" described in Japanese Patent No. 49977 is known.

[0005] This publication describes a technique for performing emergency switching to an emergency switcher by a control signal automatically transmitted from an automatic program control device.

[0006]

In the conventional video switcher control system described above, when a failure occurs in the video switcher and the user switches to an emergency video switcher, the video switcher does not correspond to the material of the video switcher. It has the disadvantage of occurring.

Further, since it is not known which material the cross point button is to be selected as an emergency video switcher, it is necessary to prepare a template such as engraving on the panel surface on the front side of the button or writing the material name. There is a disadvantage that.

[0008] An object of the present invention is to provide a video switcher which switches to an emergency video switcher in the event of a failure.
Another object of the present invention is to provide a video switcher control method that does not cause discontinuous jump of a material.

[0009]

A video switcher control method according to the present invention includes a video switcher for switching an image, and an emergency video switcher corresponding to a failure of the video switcher. When switched to a switcher, the rearranged video assignments remain as they are, and discontinuous jumps of the video do not occur.

A video switcher for switching an image; an operation panel for controlling the video switcher via a first control LAN; an emergency video switcher for switching the image during an emergency; and a second and a second emergency video switcher. And an emergency video switcher control unit connected to the operation panel via a parallel control line.

A video switcher control unit for communicating with the video switcher via the first control LAN; connecting to the video switcher control unit to rearrange and display the images; And a video display video switcher control button connected to the emergency video switcher controller via a parallel control line.

[0012] The video rearrangement information is held by both the video switcher control section and the emergency video switcher control section, and the video switcher control section and the emergency video switcher control section operate in conjunction with each other. It is characterized by.

[0013] The emergency video selection button provided on the panel surface of the operation panel also serves as a button of the emergency video switcher control unit.

An emergency video selection button provided on a panel surface of the operation panel specifies an image for controlling an emergency video switcher in advance.

[0015]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of a video switcher control system according to the present invention.

In the embodiment shown in FIG. 1, a video switcher 4 is connected to a video switcher 4 via a control LAN 7.
Control panel 1 having a video switcher control unit 3 for communicating with the video and a material display video switcher control button unit 2 for rearranging and displaying the materials, an emergency video switcher 5 for switching the materials at the time of emergency, and controlling the emergency video switcher 5 And an emergency video switcher controller 6.

Here, "material" refers to an image generation target device input to a video switcher, for example, a camera or a VT.
R, means still image equipment, etc., and "rearrange the materials" means that the material selection is the first camera, the second camera, the VT
R means that the switching order is changed to a still image device, such as still image device, first camera, VTR, and second camera. The switching order of the material, that is, the screen, can be arbitrarily set by the operation of the operator.

FIG. 2 is an explanatory view showing the operation panel surface of FIG.

Next, the operation of the present embodiment will be described in more detail with reference to FIGS.

The video switcher control section 3 of the operation panel 1 and the LAN1 terminal of the video switcher 4 are controlled by LA.
The video is synthesized and switched by communicating via N7.

Since only the emergency material selection button 14 on the front of the operation panel 1 also functions as the button of the emergency video switcher control unit 6,
The contact point of the button of the material display video switcher control button section 2 is also taken into the emergency video switcher control section 6 via the parallel control line 9, and the emergency video switcher 5 is switched via the control LAN 10 of another system.

The emergency video switcher control unit 6 outputs button tally to the material display video switcher control button unit 2 via the parallel control line 9,
The LEDs of the KEY 12, the material selection button 13, and the emergency material selection button 14 are turned on as control buttons.

Here, since the display drive of the material display 11 is performed by the video switcher control unit 3 of the operation panel 1, if the video switcher control unit 3 breaks down, even if the emergency operation is performed, the material display is normally performed. Does not appear. For this reason, the material is determined from the beginning by the emergency material selection button 14 for controlling the emergency video switcher. Therefore, it does not match the rearrangement of the materials.

The material rearrangement information is transmitted to the video switcher 4
Control L with more emergency LAN2 terminal
By transferring the information to the emergency video switcher control unit 6 using the AN 8 and the control LAN 10, the rearrangement information can be stored in both the video switcher 4 and the emergency video switcher 5.

The operation panel 1 is of a standard type. The row A of the material selection button 13 and the row B of the emergency material selection button 14 are combined or a fader lever 19 for transitioning the material is mixed with the fader lever 19 according to these instructions. Button 1 for selecting material composition mode such as, wipe, fade-in, fade-out
8, a transition designation button 16 and a memory number designation button 17 for designating a memory number of a material.

Next, the operation of material rearrangement is performed on the operation panel 1.
The video switcher control unit 3 controls the video switcher 4 to control LAN 7 with LAN 1 as a terminal.
Uses to communicate information. From video switcher 4,
A control LAN 8 using the rearranged data as the terminal of LAN 2
The control signal is transmitted to the emergency video switcher control unit 6 using the control LAN 10. The reason why the control LAN 8 and the control LAN 10 having the LAN 2 as a terminal are used is that the emergency video switcher 5 is not affected even when the control LAN 7 having the LAN 1 as a terminal goes down.

The emergency video switcher control unit 6 causes the material display 11 of the video display switcher control button unit 2 on the operation panel 1 to display on the basis of the rearrangement information. Video switcher control unit 3 for sorting information
And the emergency video switcher control unit 6 can operate in conjunction with each other.

FIG. 3 is a diagram for explaining an image synthesizing operation.

In the operation panel 1, the emergency material selection button 14 also serves as a switching button of the video switcher 4 and a switching button of the emergency video switcher 5, and a material output from the operation panel 1 via the parallel control line 9. By using the button contact (second contact) of the display video switcher control button unit 2,
The emergency video switcher 5 is switched in conjunction. However, the video switcher 4 is, for example, 4
0 material is freely assigned to 24 buttons on the operation panel surface, and the material names are displayed on the material display 11 above these buttons.

The arbitrary material “A” specified by the material selection button 13 in the row A and the arbitrary material “B” specified by the emergency material selection button 14 in the B column are combined with the WIP (wipe mode) of the mode specification button 18. , Fader lever 1
9 in the center, key ON-OFF button 1
By turning on the KEY 12 material (in this case, the NEC logo material) in step 5, the images of "A" and "B" are wiped, and the NEC logo is displayed.

As described above, in the broadcast video equipment, the video switcher 4 having the function of rearranging the materials of the operation panel 1 and the operation panel 1 serving also as the emergency video switcher 5 enable the rearranged materials even when the video switcher 4 goes down. The assignment remains.
In addition, there is no occurrence of material jumping when switching to the emergency video switcher 5.

[0033]

As described above, according to the video switcher control method of the present invention, the material rearrangement information is held by both the video switcher control unit and the emergency video switcher control unit, and the display of the material display is controlled by the emergency video switcher control. In this case, even if the video switcher breaks down, the rearranged material allocation remains as it is, and the material can be switched as before.

Also, when switching to the emergency video switcher, no material jump occurs,
This has the effect of not causing unnaturalness in the image.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a video switcher control system according to the present invention.

FIG. 2 is an explanatory diagram showing an operation panel surface of FIG. 1;

FIG. 3 is a diagram illustrating an image combining operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Operation panel 2 Material display video switcher control button part 3 Video switcher control part 4 Video switcher 5 Emergency video switcher 6 Emergency video switcher control part 7, 8 Control LAN 9 Parallel control line 10 Control LAN 11 Material display 12 KEY 13 Material selection Button 14 Emergency material selection button 15 KEY ON-OFF button 16 Transition designation button 17 Memory number designation button 18 Mode designation button 19 Fader lever

Claims (6)

[Claims] 1. A video switcher for switching an image,
An emergency video switcher corresponding to the failure of the video switcher; and when switching to the emergency video switcher when the video switcher fails, the rearranged video allocation remains as it is, and the video is discontinuous. A video switcher control method characterized by no jumps. 2. A video switcher for switching an image;
An operation panel for controlling the video switcher via a first control LAN; an emergency video switcher for switching the image at the time of emergency; controlling the emergency video switcher via second and third control LANs; An emergency video switcher control unit connected to the operation panel by a parallel control line. 3. The operation panel, comprising: a video switcher control unit that communicates with the video switcher via the first control LAN; connected to the video switcher control unit to perform rearrangement and display of the video; 3. The video switcher control system according to claim 2, further comprising: a video display video switcher control button connected to the emergency video switcher controller via a parallel control line. 4. The video rearrangement information is stored in both the video switcher control unit and the emergency video switcher control unit, and the video switcher control unit and the emergency video switcher control unit operate in conjunction with each other. 3. The method according to claim 2, wherein
Or the video switcher control method according to claim 3. 5. The video switcher control method according to claim 2, wherein an emergency video selection button provided on a panel surface of the operation panel also serves as a button of the emergency video switcher control unit. 6. The video switcher according to claim 2, wherein an emergency video selection button provided on a panel surface of the operation panel specifies a video for controlling an emergency video switcher in advance. control method.