JP3012790B2 - Recording editing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a monitoring device using a television camera. In particular, it is suitable for use in monitoring the operation status of production facilities and distribution facilities.

[0002]

2. Description of the Related Art It is widely practiced to use a television camera as a subject to be monitored and detect an abnormality of the subject. For example, to discover abnormalities that occur on a production line,
The present applicant has proposed a recording editing method and apparatus disclosed in Japanese Patent Application Laid-Open No. 2-16891. To briefly explain this proposal, television cameras as imaging devices are installed at a plurality of locations on a production line, and the images are simultaneously displayed on one screen. Further, this video is recorded by the first recording device.

When an abnormality on the production line is detected and an abnormality signal automatically generated is sent to this device, the video information recorded on the first recording device is rewound for a predetermined time, The video up to the time of detection of the abnormal signal is reproduced. This video is recorded on the second recording device. Therefore, the monitor of the production line can immediately perform an operation of projecting only a video that has been retroactive for a certain period of time from the time when the abnormal signal is generated on the screen and analyzing the cause of the abnormal occurrence.

[0004] Alternatively, in the monitoring device disclosed in Japanese Patent Application Laid-Open No. 1-251458, two first recording devices are used, an abnormal signal is detected, and one of the first recording devices becomes the second recording device. Even when dubbing is being performed, the other first recording device continues to photograph the monitored object.

[0005] In particular, Japanese Patent Application Laid-Open No. 2-168 by the present applicant.
The proposal disclosed in Japanese Patent Publication No. 91 can compare conditions at a plurality of locations on the same screen at the same time, and is therefore excellent for analyzing an abnormality occurring on a production line which is generally caused by a plurality of factors. ing. This conventional example will be described with reference to FIG. FIG. 11 is an overall configuration diagram of a conventional example. Imaging device 1 ₁ to 1 ₄ are imaging the image of the four places. These images are edited by the four-screen unit 6 so that they can be simultaneously reproduced on the same screen, and are recorded in the first recording device 2. When an abnormal signal is sent from the line controller 8 to the control device 4 as the external input signal 5, the first recording device 2 rewinds the video tape for a predetermined time according to the time information from the control device 4, The contents are dubbed to the second recording device 3.
The observer reproduces the video information recorded on the second recording device 3 and displays it on the monitor 13 to analyze the abnormality of the monitored object.

[0006]

As described above, it is useful to be able to simultaneously display images at a plurality of places on the same screen and to analyze abnormalities on a production line. Can not be monitored. That is, the same workpiece one flowing on the production line, always with a time difference to pass through the front of the imaging apparatus 1 ₁ to 1 _4. Therefore, in the method of capturing images of a plurality of places at the same time as shown in the conventional example, it takes a lot of trouble to sequentially track and monitor one work flowing on the manufacturing line.

An example in which one and the same moving workpiece is continuously monitored using the conventional example will be described with reference to FIG. FIG. 12 is a conceptual diagram showing a shooting state of a moving workpiece using the conventional apparatus. In FIG. 12, the work is, for example, fireworks. The content recorded on the first recording device 2 is represented by an image A
ＤD. Time from the image of the workpiece captured in the imaging apparatus 1 ₁ to the image of the workpiece is captured in the imaging apparatus 1 ₂ is T [alpha. Time from the image of the workpiece captured in the imaging apparatus 1 ₂ to image the workpiece is captured in the imaging device 1 ₃ is a T [beta. Time from the image of the workpiece captured in the imaging device 1 ₃ to the image of the workpiece is captured in the imaging device 1 ₄ is Tiganma. Image A is frame 5, image B is frame 16, image C is frame 20, image D is frame 24.
Each frame has a work image. Imaging device 1
Distance ₁ to 1 _4, i.e. the observation point P, Q, R, as S moves away, Tiarufa～tiganma increases.

Therefore, when it is desired to compare the images at the observation points P, Q, R, and S with each other, the frames in which the images A to D are photographed are searched and printed or stored in the image memory. Need to expand. If the fireworks as the work are fired repeatedly, it is necessary to repeat this operation.

Such an operation requires a long search time, edit time, and other work, and is not suitable for use in a production line or the like where it is important to immediately respond to the occurrence of an abnormality.

The present invention has been made in view of such a background, and it is an object of the present invention to provide a recording editing apparatus capable of monitoring monitored objects located at distant positions in time series on the same screen. Aim. SUMMARY OF THE INVENTION It is an object of the present invention to provide a recording editing apparatus capable of detecting a failure of a monitored object at an early stage.

[0011]

According to the present invention, there are provided a plurality of image pickup devices arranged at a plurality of places for picking up an image of a subject, and a first method for individually recording output signals generated by each of the plurality of image pickup devices. The recording editing device includes a recording device and a second recording device that edits a plurality of reproduction output signals reproduced and output by the first recording device into one image and records the image.

Here, the feature of the present invention resides in that a means for shifting the recording start timing of the output signal generated by each of the plurality of imaging devices by a predetermined time is provided.

[0013] With this, for example, it is possible to pay attention to one and the same work flowing on the manufacturing line and follow up the work in time sequence, which is useful for the observer to analyze the failure location. Video information can be obtained.

[0014] The shifting means may include means for starting recording in accordance with a preset recording start timing. Alternatively, the subject may be provided with a sign, and the means for starting may include means for starting recording according to an output signal from a sensor recognizing the sign.

For example, when the movement pattern of the work on the production line is constant, the recording start timing of the output signal of each imaging device can be set from outside by a monitor or the like in advance. Also, when the movement pattern of the work is indefinite, a mark is given to the work,
Recording may be started when the workpiece enters the field of view of the imaging device using a sensor that can recognize the sign.

It is preferable that the apparatus further comprises means for reproducing the video information recorded on the first recording device having different recording start timings, with their start positions aligned.

The video information recorded by the first recording device has a different recording start position. By playing back the different video start positions at the same time, editing this into one image and recording it on the second recording device, the observer can view the image at different times displayed on one screen. Since the occurred phenomena can be monitored at the same time, video information that is extremely useful for the observer to analyze the failure can be obtained.

[0018]

Embodiments of the present invention will be described with reference to FIG. FIG. 1 is an overall configuration diagram of an embodiment of the present invention.

The present invention, four observation point P to image the workpiece 10 as a subject, Q, R, the imaging apparatus ₁ 1 to 1 ₄ arranged in S, the respective image pickup device ₁ 1 to 1 ₄ are generated Recording device 2 for individually recording output signals to be recorded
₂₁ to ₂₄ and (video tape recorder), the second recording device 3 (video tape recorder the first recording device ₂₁ to ₂₄ is recorded edit four reproduced output signal to be reproduced output one image ).

[0020] Here, it is an aspect of the present invention, control means for shifting the first recording start timing of the recording apparatus 21 _{to 24} of the output signal the imaging devices 1 ₁ to 1 ₄ are generated a predetermined time It is provided in the device 14.

[0021] further comprises means for reproducing aligning its starting position recording start timing respectively different first recorder 2 ₁ video information recorded in the 21 _{to 24} to the controller 14.

[0022]

【Example】

(First Embodiment) A first embodiment of the present invention will be described with reference to FIGS. FIG. 2 is a flowchart showing the operation of the first embodiment of the present invention. FIG. 3 is a conceptual diagram showing a photographing state of a workpiece according to the first embodiment of the present invention. FIG. 4 is a conceptual diagram showing a recording situation of the second recording device 3. FIG. 5 is a time chart showing the operation of the first embodiment of the present invention.

[0023] a movement pattern is substantially constant workpiece 10, when the timing at which the front of each imaging apparatus 1 ₁ to 1 ₄ and a work 10 passes can be pre-estimated, the control unit 14, via the input device 12 each first recorder 2 ₁ -
By setting the 2 ₄ recording start timing, to monitor the work 10 chronologically continuously, it can be displayed on the same screen of the monitor 13.

As shown in FIG. 2, the first recording device 2 ₁ starts recording at the timing when the work 10 passes in front of the imaging device 1 ₁ (S1). After elapse of Tα time (S2),
The first recording device 2 ₂ starts recording (S3). After Tβ time (S4), the first recording device 2 ₃ starts recording (S5). After the Tγ time (S6), the first recording device 2 ₄ starts recording (S7).

[0025] Thus, as shown in FIG. 3, the image of the desired workpiece 10 to first frame A~D being recorded in the first recording device 21 _{to 24} is taken. Subsequently, the first recording device ₂₁ to ₂₄ of the video tape is played unwound simultaneously to the starting point. As shown in FIG.
These images A to D are edited by the four-screen unit 6 so that they can be displayed on the same screen, and the edited video is recorded on the second recording device 3.

FIG. 5 shows the above operation as a time chart. The recording time is the first recording device 2 ₄
There is a minimum, the time required for dubbing to the second recording apparatus 3 is within the recording time of the first recording apparatus 2 _4.

The recording start timing, the rewinding time, and other time information required for time control are supplied from the control device 14.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 6 is a view showing a movement pattern of a work in the second embodiment of the present invention.
FIG. 7 is a time chart showing the operation of the second embodiment of the present invention. As shown in FIG. 6, when the work 10 has two routes and the movement pattern is irregular, and it is difficult to set the recording start timing in advance, the work 10 should be distinguished from other works. grant labels that can performs the recording start of the first recording device ₂₁ to ₂₄ by which the sensor 20 to 25 is recognized. FIG. 7 shows a time chart in this case. 7, the workpiece 10 by the output signals of the sensors 20 to 25 when passing through the "root 2", the first recording device ₂₁ to ₂₄ indicates a state in which performing recording start. To give a specific example of a sign and a sensor, a plate of a color different from the color originally possessed by the work 10 is attached to the work 10 as a sign, and the sensors 20 to 25 are attached to the work 10 using a sensor capable of distinguishing colors. The presence or absence of the attached plate is detected.

Next, an application example of the present invention will be described with reference to FIGS. FIG. 8 is a conceptual diagram of a pudding production line. FIG. 9 is a diagram showing the time relationship between the point of interest of the observer and each photographing point. FIG. 10 is a conceptual diagram of an image displayed on the monitor 13. When a defect occurs in the punching section 35,
Investigate the timing of related parts to find out the cause. Here, as shown in the first embodiment of the present invention, the movement pattern of the work is constant, and the recording start timing can be set in advance. As shown in FIG.
In order to track the image of the same work, the seal portion 34
The image of (1) requires rewinding for 10 seconds from the image of the punching unit 35. The image of the second filling section 33 needs to be rewound for 15 seconds from the image of the sealing section 34. The image of the forming section 31 needs to be rewound for 20 seconds from the image of the second filling section 33.

Based on these facts, each of the first recording devices 21 to ₁
Recording start timing of 2 ₄ is input to the controller 14 via the input device 12 is calculated. As a result, as shown in FIG. 10, the same work is formed on the same screen by the forming unit 31, the second filling unit 33, the sealing unit 34, and the punching unit 35, respectively.
The situation that is being processed in is displayed. As a result, the observer was able to find an abnormality in the molding unit 31.

Although the embodiment of the recording editing apparatus used in the present invention has been described above, the apparatus used in the present invention is not limited to the one shown in this embodiment.
For example, a video disk, an IC memory, or the like may be used instead of a video tape recorder as a recording device.

[0032]

As described above, according to the present invention,
It is possible to monitor objects to be monitored at positions separated in time series on the same screen. Thereby, the failure of the monitored object can be detected early.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the first embodiment of the present invention.

FIG. 3 is a conceptual diagram showing a shooting state of a workpiece according to the first embodiment of the present invention.

FIG. 4 is a conceptual diagram showing a recording situation of a second recording device.

FIG. 5 is a time chart showing the operation of the first embodiment of the present invention.

FIG. 6 is a view showing a movement pattern of a workpiece according to a second embodiment of the present invention.

FIG. 7 is a time chart showing the operation of the second embodiment of the present invention.

FIG. 8 is a conceptual diagram of a pudding production line.

FIG. 9 is a diagram showing a time relationship between a point of interest of a monitor and each photographing point.

FIG. 10 is a conceptual diagram of an image displayed on a monitor.

FIG. 11 is an overall configuration diagram of a conventional example.

FIG. 12 is a conceptual diagram showing a shooting state of a moving workpiece using a conventional apparatus.

[Explanation of symbols]

1 ₁ to 1 ₄ imaging device 2, 2 21 _{to 24} the first recording device 3 a second recording device 4,14 controller 5 external input signal 6 4 screen unit 8 line controller 9 tape ends alarm 10 workpiece 11 the imaging apparatus Connector 12 Input device 13 Monitor 20-25 Sensor 30 Heater 31 Molding part 32 First filling part 33 Second filling part 34 Seal part 35 Punching part P, Q, R, S Observation point

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04N 5/91-5/956 H04N 7/18

Claims (3)

(57) [Claims] 1. A plurality of imaging devices arranged at a plurality of locations for imaging a subject, a first recording device for individually recording output signals generated by each of the plurality of imaging devices,
In a recording editing device including a second recording device that edits and records a plurality of reproduction output signals reproduced and output by the first recording device into one image, the recording start timing of the first recording device is Each different
And the video signal recorded on the first recording device is shifted to its starting position.
A recording editing device, comprising: means for aligning and playing back images . 2. The first recording device, wherein
2. The recording editing apparatus according to claim 1, wherein a recording start timing is set . Wherein the object labeling is assigned to the first in accordance with output signals from the recognizing sensor previous SL-labeled
2. The recording editing apparatus according to claim 1, further comprising means for starting recording in said recording apparatus.