JPH07111070A - Video control system - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a video control system that operates in accordance with a reproduced image with a simple configuration at low cost. [Structure] A part of a video signal including image information of a plurality of frames is replaced with control data corresponding to an operation command at a timing to be generated, and this is recorded by a VTR 22. The recorded video signal is reproduced by the reproducing device, and the control data therein is detected by the control circuit 33. The control circuit 33 sends this control data to the control target 5
Supply to 0. As a result, the control target 50 operates in accordance with the reproduced image or music. The control target 50 may be anything that conforms to the control data, and may be, for example, lighting equipment or a movable display for exhibition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video control system suitable for performing various controls in accordance with a reproduced image of a video tape recorder (VTR).

[0002]

2. Description of the Related Art Conventionally, there has been known a system for controlling the brightness of lighting, the operation of a display (for example, a doll, etc.) in accordance with an image or music to be reproduced in a show or various events. .

[0003]

However, there is a problem in that such a system is generally large-scaled and the device itself is expensive (several million yen) due to a special situation for an event. The present invention has been made in view of the above-described problems, and an object thereof is to provide a video control system that is a simple and inexpensive system and is suitable for home use.

[0004]

In order to solve the above-mentioned problem, according to the invention described in claim 1, a part of a video signal including image information of a plurality of frames is converted into control data corresponding to an event command. , And a recording means for recording the video signal replaced by the replacing means. According to a second aspect of the invention, in the first aspect of the invention, the control data is a control command to a control target that operates in synchronization with a reproduction progress state of the video signal.

According to a third aspect of the present invention, a detecting means for detecting predetermined control data from a video signal including image information of a plurality of frames, and the control data when the control data is detected by the detecting means. Extraction means for extracting and outputting data from the video signal. According to a fourth aspect of the present invention, in the third aspect of the invention, means for sequentially sampling and holding image signals of a plurality of frames is provided, and when the control data is detected by the detection means, the video before the detection is detected. The feature is that the signal is held and output. According to a fifth aspect of the invention, in the fourth aspect of the invention, the control data is a control command to a control target that operates in synchronization with a reproduction progress state of the video signal.
According to a sixth aspect of the present invention, in the fifth aspect of the present invention, display means for performing display based on the video signal from which the control data is extracted by the extraction means, and behavior of a person who views the display by the display means. Behavior detecting means for detecting the action, outputting the data corresponding to the action, storing means for storing beforehand the data corresponding to the action to be originally performed, and reading the data stored by the storing means to detect the action. When the comparison by the comparison means is inconsistent, the notification means for notifying the fact is provided. According to the invention described in claim 7, in the invention described in claim 6, the reading control of the video signal including the image information of the plurality of frames is performed based on the data output by the action detecting means. I am trying.

[0006]

According to the first aspect of the invention, the control data corresponding to the event command can be replaced with a part of the video signal at the timing of generation and recorded. According to the second aspect of the present invention, it is possible to record the control data for causing the controlled object to perform the operation in harmony with the reproduction progress state in the video signal.

According to the third aspect of the invention, the video signal, a part of which is replaced with the control data, can be output at the timing at which it should be generated. According to the invention described in claim 4, since the video signal corresponding to the recording location of the control data is not output and is held immediately before the detection of the control data, the display based on the video signal of the control data is suddenly disturbed. You can get rid of things. According to the invention described in claim 5, it is possible to extract, from the video signal, control data for causing the controlled object to perform an operation in harmony with the reproduction progress state. According to the invention described in claim 6, when the person who views the display by the display means does not take an appropriate action with respect to the reproduction progress state, the fact is notified by the notification means. Claim 7
According to the invention described in, in response to the behavior of the viewer,
It is possible to find the beginning of the image information to be transferred next and control the reproduction state.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1A is a block diagram showing the configuration of the recording device 10 in the video control system according to the present invention. In this figure, 11 is an input terminal,
Video signal reproduced by VTR 21 (for example, NTS
C color method). The video signal supplied to the input terminal 11 is displayed on the monitor 23 and confirmed by the operator, converted into a digital signal by an A / D converter (not shown), and sequentially written in the memory 12 at a predetermined timing. It is supposed to be.

Reference numeral 13 denotes a control circuit, which is a CPU (Central
Processing Unit), a ROM for storing programs for controlling the operation of this CPU, etc.
Of the FDD (Floppy Disk Drive) 14 and the keyboard 15 as well as controlling the addressing, data transfer / replacement, and the like. Here, the replacement means of the present application is configured by the memory 12 and the control circuit 13. The FDD 14 stores a data file in which control data for instructing the operation of a control target (described later) is filed, and the operator's keyboard 15
Is read out as appropriate.

The data read from the memory 12 is re-converted into a video signal by a D / A converter (not shown) and recorded by the VTR 22 as, for example, a cassette video tape. Here, the VTRs 21 and 22 are of the type commonly used at home. The data file is not limited to the FDD 14,
Alternatively, it may be configured to be supplied from an external device via RS-232C.

Next, the structure of the reproducing apparatus 30 in the video control system according to the present invention will be described with reference to FIG. In this figure, 31 is an input terminal for inputting a video signal reproduced by an ordinary VTR (not shown). Here, this video signal is VTR2.
2 is the signal recorded. The video signal supplied to the input terminal 31 is converted into a digital signal by an A / D converter (not shown) and sequentially written in the memory 32 at a predetermined timing. Reference numeral 33 denotes a control circuit, which is composed of a CPU, a ROM for storing programs for controlling the operation of the CPU, and the like.
Controls the detection of whether or not the identification mark is present in the video signal stored in the memory, the addressing of this memory, the transfer / replacement of data, and the like. Reference numeral 34 is an FDD that stores a file to be described later in advance. Then, the data read from the memory 32 is re-converted into a video signal by a D / A converter (not shown) and displayed on the monitor 42. As the monitor 42, for example, a projector, a CRT, or the like is selected according to the usage state.

On the other hand, reference numeral 50 is a controlled object which performs various operations corresponding to the control data. In the present application, for example, the following is assumed as the control target 50. Display Displays used for exhibitions and various events, in particular, those with various movable mechanisms such as dolls and models. In order to raise the attention of the audience, it is desirable to be able to perform detailed movements. Surrounding room environment Brightness / color of lighting, rotation speed / direction of mirror ball, etc. It mainly changes the atmosphere of the surrounding environment. Simulator For vehicle learning, emergency simulation training, reactor operation, etc. That is, the control target 50 may be anything that performs some operation in accordance with the reproduced image (or music) or that needs to perform some operation. In this case, the reproduction apparatus as a whole may be regarded as the control target 50 (described later).

Next, the operation of the embodiment having the above configuration will be described. First, the operation of the recording device 10 shown in FIG. 1A will be described.

In the recording device 10, the video signal supplied to the input terminal 11 is converted into a digital signal, sequentially written in the memory 12, read out after a predetermined time elapses, and reconverted into an analog signal. After that, it is recorded by the VTR 22.

Now, the operator operates the keyboard 15 to read a desired data file from the FDD 14 and store it in the control circuit 13, and at the same time, input terminal 11
While confirming the display based on the video signal supplied to the monitor 23 on the monitor 23, the control object waits for the timing to perform the operation. Then, when this timing is reached, the operator performs a key input operation to that effect. By this operation, the recording device 10 performs the following operation.

That is, the identification mark indicating the beginning of writing of the control data is written in the portion corresponding to the first horizontal line of the first field in the image corresponding to the timing at which the controlled object should operate. Subsequently, data indicating the contents of the control data to be written next is written in the first and third horizontal lines of the first field of this image. As this data, for example, parity for an error correction code, data for interpreting written control data, data indicating a format format of the similarly written control data, and the like can be considered. Further, it may be the control data itself. Control data is sequentially written in the portion corresponding to the subsequent odd horizontal lines in the first field.
More preferably, the same data as in the first field should be written in even-numbered horizontal lines of the second field of this image. This means that noise resistance is enhanced by writing data using multiple fields. Then, an identification mark indicating that fact is written in the last portion where the control data is written.

In this embodiment, the control data is written in the horizontal line, but the control data writing location is not limited to a particular location in the present invention. For example, the writing location of the control data may be a vertical line, or a specific line with a predetermined interval, for example, the first, eleventh, twenty-first, thirty-first, ... Horizontal line. In the configuration in which the lines are written at predetermined intervals, the writing density of the control data is sparse, but when this recording tape is reproduced by a normal VTR, there is an advantage that the reproduced image is less deteriorated. Further, if the above-mentioned identification mark can be surely detected on the reproducing apparatus side, which will be described later, the identification mark indicating the beginning of writing is not limited to the first horizontal line, but the most of the images corresponding to the timing. It is also possible to detect an inconspicuous part and write in this part.

As described above, the video signal in which a part of the horizontal line is rewritten is reconverted into an analog signal,
Recorded by VTR 22. According to the recording device 10, the control data for causing the controlled object to perform an operation suitable for the image (music) of the video signal is recorded by replacing a part of the video signal. The video signal and the control data of the image are recorded in the video signal thus recorded, but the control device extracts and outputs the control data from the video signal by the reproducing apparatus shown in FIG. 1B.

Next, the operation of the reproducing apparatus 30 will be described. In the recording device 30, after the video signal supplied to the input terminal 31 is converted into a digital signal,
It is sequentially written in the memory 32.

Here, the control circuit 33 detects whether or not the video signal sequentially stored in the memory 32 has an identification mark indicating the beginning of writing of the control data.
If the control circuit 33 does not detect the presence of the identification mark, the control circuit 33 sequentially reads the video signals written in the memory 32, reconverts them into analog video signals, and outputs them.
As a result, the read video signal is displayed on the monitor 42 based on the video signal.

On the other hand, when the control circuit 33 detects the presence of the identification mark, the control circuit 33 suspends the reading from the memory 32 at the image immediately before the image in which the identification mark is written. Next, the control circuit 33 extracts the data indicating the content of the control data and the control data following the identification mark from the video signal. Next, the control circuit 33
Supplies the control data to the control target 50 (correcting the control data from the data indicating the control content if necessary).
Then, when the identification mark indicating the tail of the writing of the control data is detected, the reading of the memory 32 is restarted from the image next to the image in which the identification mark is written.

As a result, the display on the monitor 42 is temporarily stopped until the identification mark indicating the tail end of the writing of the control data is detected while the image immediately preceding the image of the identification mark indicating the beginning of the writing of the control data remains. To do. That is, the image in which the control data is written is not output. This is because if the image is output as it is, the line corresponding to the rewritten portion is disturbed, which may give the viewer an unpleasant feeling. In this case, if the influence is small, the video signal may not be output only during the reproduction period of the signal in which the control data is written, instead of temporarily stopping the screen.

Now, the controlled object 50 operates based on the control data extracted by the control circuit 33. For example, when the controlled object 50 is an exhibition display, the operation is performed in accordance with the reproduced image, the tone of music, and the tempo. Thereby, the attention of the audience can be increased. Further, when the controlled object 50 is an indoor environment lighting facility, the brightness and the color of the irradiation light change in accordance with the reproduced image, the tone of music, and the tempo. This is extremely suitable for creating a mood such as karaoke.

As described above, the control circuit 33 has the input terminal 3
While the video signal is being supplied to 1, the identification mark is detected in the memory 32, and such an operation is repeated each time the identification mark indicating the head of writing the control data is detected. The output video signal is displayed as an image on the monitor 42,
The operation of the controlled object 50 is controlled based on the control data extracted from the video signal. Therefore, according to the reproducing device 30, the operation of the controlled object 50 is appropriately performed on the image on the monitor 42, that is, the reproduced image.

The VTR used in the recording device 10 and the reproducing device 30 may be a home-use VTR widely used in the past, and the control circuit 1
Since a general-purpose computer such as a personal computer can be used for 3, 33, this video control system can be configured easily and inexpensively.

In order to prevent the video signal stored in the VTR 22 from being reproduced and output without going through the control data extracting mechanism, some measure is taken, for example, control data writing is shown when recording the control data. It is desirable to take measures in advance by inserting a signal and notifying the operator of that fact to prevent trouble. Furthermore, it is better to write the control data in a format that takes this into consideration.

In the above-described embodiment, the recording device and the reproducing device have different configurations for the sake of explanation, but they may have a shared configuration. In this case, the control to be performed by the control circuit for recording / reproducing can be performed by reading the corresponding programs. As the reproducing apparatus, as shown in FIG. 2, a dedicated VTR for reproducing the video signal recorded by the VTR 22 may be incorporated in the apparatus shown in FIG. 1B.

Next, referring to FIG. 3, the simulator 70
An example of a configuration incorporating the reproducing apparatus of this embodiment will be described below. The difference between this figure and the reproducing apparatus shown in FIG. 1B is that the video signal supplied to the memory 32 is supplied from the disk reproducer 61, and the read control of this disk reproducer 61 is a control circuit. 33 and the point where data is supplied from the controlled object 50 to the control circuit 33. The same parts as those in this figure and FIG. 1B are designated by the same reference numerals, and the description thereof will be omitted. Also, F
The DD 34 stores a teacher signal indicating a correct response in a file.

The disc player 61 is a magneto-optical disc player capable of random access and having a high access speed. A video signal of a training image is recorded on this magneto-optical disk, a part of which is shown in FIG.
It is replaced with the control data described above by the recording device shown in FIG. In this case, the control data is data for instructing the control target 50 to perform an operation for raising the atmosphere of the training image.

The controlled object 50 also detects the behavior of the learner and supplies this detection signal to the control circuit 33. Based on this detection signal, the control circuit 33 controls the disc player 6
1 (for example, access or playback speed) is controlled to display a training image according to the behavior of the learner, and the detection signal is compared with the teacher signal stored in the FDD 34. The disc player 61 determines whether the behavior of the learner is correct or incorrect and based on the result of the determination.
Cue and playback control in. Further, the control circuit 33 creates a display screen of the judgment result and superimposes it on the training image to notify the learner of the correctness / property of the action. The control circuit 33 is supposed to read the data corresponding to the cue to the disc player 61 from the FDD 34.

According to this structure, the lesson video is displayed on the monitor 42, and the instructor takes some action while watching this image. The detection signal corresponding to this action is supplied to the control circuit 33 by the controlled object 50. Then, the control circuit 33 compares the detection signal with the teacher signal showing an original correct response to determine whether the learner's behavior is correct or appropriate for the reproduced image. It is possible to determine. Further, by controlling the reading of the disc player 61, it is possible to find the next training image to be transferred according to the learner's action and display the lesson image at a playback speed according to the learner's action. It will be possible. As a result, for example, when the simulator is used for car training, if the trainee operates the steering wheel excessively, the trainer will cue to the screen showing the accident and display the video, or the accelerator of the trainee will be opened. It is possible to display the training video at a playback speed according to the degree.

[0032]

The invention described above has the following effects. The control data corresponding to the event command can be replaced with a part of the video signal and recorded at a timing when it should be generated. Therefore, since the conventional home video device can be used for reproducing and recording the video signal, the present invention can be constructed inexpensively and easily by the addition of the minimum number (claim 1). Control data for causing the controlled object to perform a harmonious operation with respect to the reproduced image can be recorded in the video signal (claim 2).
A video signal, part of which is replaced with control data,
It can be output at the timing when it should occur. Therefore, similarly to the invention described in claim 1, since the conventional home video device can be used for the reproduction and recording of the video signal, the present invention can be constructed inexpensively and easily by adding the minimum reduction. Yes (Claim 3). Since the video signal corresponding to the recording location of the control data is not output and is held immediately before the detection of the control data, it is possible to prevent the display based on the video signal of the control data from being suddenly disturbed (claim 4). . It is possible to extract from the video signal control data that causes the controlled object to perform a harmonious operation on the reproduced image. When the person who views the display by the display means does not take an appropriate action on the reproduced image, it is possible to notify that effect (claim 6). Corresponding to the behavior of the viewer,
It is possible to perform cueing to a video to be read and read control (claim 7).

[Brief description of drawings]

FIG. 1A is a block diagram showing a configuration of a recording device in a video control system of an embodiment according to the present invention, and FIG. 1B is a block diagram showing a configuration of a reproducing device in the embodiment. .

FIG. 2 is a block diagram showing an example of a reproducing apparatus of the video control system according to the present invention.

FIG. 3 is a block diagram showing a configuration when a reproducing apparatus of the video control system according to the present invention is used as a simulator.

[Explanation of symbols]

22 ... VTR (recording means) 12, 32 ... memory, 13, 33 ... control circuit (replacement means, detection means, extraction means, sample hold means, notification means, comparison means) 34 ... FDD (storage means) ) 42 ... Monitor (display means) 50 ... Control object (control object, action detection means)

Claims (7)

[Claims] 1. A replacement means for replacing a part of a video signal containing image information of a plurality of frames with control data corresponding to an event command at a timing to be generated, and a video signal replaced by the replacement means is recorded. A video control system, comprising: 2. The video control system according to claim 1, wherein the control data is a control command to a control target that operates in synchronization with a reproduction progress state of the video signal. 3. A detection means for detecting predetermined control data from a video signal containing image information of a plurality of frames, and when the control data is detected by the detection means, the control data is extracted from the video signal. A video control system, comprising: 4. A means for sequentially sampling and holding image signals of a plurality of frames is provided, and when the control data is detected by the detecting means, the video signal before detection is held and output. Item 3. The video control system according to Item 3. 5. The video control system according to claim 3, wherein the control data is a control command to a control target which operates in synchronization with a reproduction progress state of the video signal. 6. Display means for displaying based on the video signal from which the control data is extracted by the extracting means, and a behavior of a person who views the display by the display means is detected,
An action detection unit that outputs data corresponding to the action, a storage unit that stores in advance data corresponding to the action that should be originally performed, and data that is stored by the storage unit is read and output by the action detection unit. 6. The apparatus according to claim 5, further comprising: comparing means for comparing with the data, and notifying means for notifying that the comparison by the comparing means does not match.
The described video control system. 7. The video control system according to claim 6, wherein read control of the video signal including the image information of the plurality of frames is performed based on the data output by the action detecting means.