JPS6216693A - Monitoring device for moving object - Google Patents

Abstract

PURPOSE:To display a moving long size object on a screen for comparatively long time by displaying simultaneously continuous plural pictures stored at a memory device at a different area on the screen of a display device. CONSTITUTION:A light emitter 18 is emitted by the signal of a control part 17 and the video of an object can be obtained by a television camera 12. The signal is A/D-converted and is written to a prescribed area on a memory 19 and is displayed at the prescribed area on the screen of a monitor 13. Generally, so that the object extending in a transverse direction is displayed, it is displayed by using one of parts divided equally in a longitudinal direction. After an object 11 is moved by a prescribed distance, an another picture is displayed in the same manner at another area on the monitor 13. Thus, the screen of the monitor 13 is, for example, divided into three parts and continuous different picture is displayed on each of parts respectively. Thereby, a continuous long size object can be displayed for comparatively long time and checking can be easily and precisely performed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a moving object monitoring device that continuously monitors a moving object, and is particularly suitable for monitoring the condition of a long object. It is related to the device.

[Prior art and its problems]

In order to monitor a moving object while it is still in motion, a method is used to display this as a still image and check it on a monitor. In this system, a video signal obtained by capturing images of a moving object at predetermined intervals is digitized and written into a memory, and the signal read from the memory is displayed on a monitor as a still image. The AD-converted video signals are sequentially written into the memory. This allows the moving image to become a still image that changes at regular intervals.

FIG. 2 shows a method of monitoring using still images as described above. In FIG. 2, the object 21 moves from right to left, and in FIG.
3 is displayed as a still image. After the object 21 has moved a predetermined distance, another portion of the object 21 is displayed as a still image on the monitor 23, as shown in FIG. 20. This process is repeated to check the objects 21 one after another.

However, when an object moves at high speed, the display interval becomes short, and instantaneous images are displayed intermittently. This makes checking difficult and causes problems such as eye fatigue.

[Purpose of the invention]

The present invention solves the above-mentioned problems and provides a moving object monitoring device that can extend the screen display time. It is particularly suitable for monitoring objects that are continuous for a long time, such as checking the marking status of electric wires. The aim is to obtain suitable equipment.

[Means for solving problems]

The present invention achieves the above object by sequentially displaying a plurality of still images on one monitor to extend the display time.

That is, a moving object monitoring device using an image processing device that obtains a still image of a moving object by light emission from a light source is provided with a storage device for simultaneously recording a plurality of images, and continuous images recorded in the storage device are provided. is characterized in that it is displayed simultaneously on different areas of the screen of the display device.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing an implementation sequence of the present invention.

The object 11 is being moved from right to left by a feeding device 14. The rotating shaft of the feeding device 140 is connected to the rotational position sensor 15 . The position control unit 16 generates a pulse signal at a specified position according to the signal from the position sensor 15, and controls the control unit 1.
7. The control unit 17 controls the operation of the device, and controls the operation of the light emitter 18 and the like. The memory 19 stores video signals from the television camera 12, and writing and the like are controlled by a memory controller 20. The video signal recorded in the memory 19 is displayed on the monitor 13.

Here, a plurality of image areas are allocated to the memory 19), and a plurality of images are recorded in each area. Then, the plurality of images are displayed simultaneously on the monitor 13.

Next, the operation of the moving object monitoring device of the present invention will be explained.

The light emitter 18 emits light in response to a signal from the control section 17 . At this time, a video signal of the object 11 is obtained by the television camera 12, and this video signal is AD converted and written into a predetermined area of the memory 19 as a digital signal. This signal is read out and displayed on a predetermined area of the screen of the monitor 13. Since it is common to display objects that are long in the horizontal direction,
The screen will be divided vertically into equal parts and displayed on one of them. After the object 11 has moved a predetermined distance, another image is similarly displayed in another area of the monitor 13. In this way, in the row shown in FIG. 1, the screen of the monitor 13 is divided into three parts, each of which displays a different continuous image. In this case, the next image will be written to the foremost image storage area of the memory 19.

As described above, the video signals in the memory 19 are sequentially rewritten, and the display on the monitor 13 changes accordingly.
Each image will continue to be displayed for a period of time corresponding to the overall period.

If the moving speed of the object is the length t in the longitudinal direction of the object displayed on the S1 screen, then if the light is emitted at a time interval of t/S, continuous images will be displayed on the divided screen with the seams aligned. Is displayed.

〔Effect of the invention〕

According to the present invention, since a long moving object can be displayed on the screen for a relatively long time, checking can be performed easily and accurately.

This also has the advantage of reducing eye fatigue for the person checking.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing an embodiment of the present invention, and FIG. 2 (g) and FIG. 20 are explanatory diagrams showing a conventional moving object monitoring device. 11, 21...object, 12.22...
...TV camera. 13.23...monitor, 17...curvature...
·control? 5.

Claims (1)

[Claims] A moving object monitoring device using an image processing device that obtains a still image of a moving object by emitting light from a light source, comprising a storage device for simultaneously recording a plurality of images, and displaying consecutive images recorded in the storage device. A moving object monitoring device characterized by displaying images simultaneously on different areas of the screen of the device.