JPH0716470U - Recording and analysis device for sudden phenomena - Google Patents

Abstract

(57) [Summary] [Purpose] When video signals from a video camera or the like are continuously recorded in a VTR, and when a sudden phenomenon occurs, only the necessary parts before and after the sudden phenomenon occur are recorded in the VTR for recording and the sudden occurrence. This is to analyze the phenomenon. [Structure] While a continuous recording VTR is operating, a VTR recording operation is stopped when a predetermined time elapses after the occurrence of a sudden phenomenon, and after stop, it is rewound to a predetermined time before the sudden phenomenon occurs,
Continuous recording VTR that starts playback operation at the same time as rewinding,
The recording / reproducing VTR comprises a separate storage recording VTR which starts the recording operation of the signal before and after the occurrence of the sudden phenomenon when the rewinding of the VTR is completed, and a monitor for analyzing the sudden phenomenon.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the field of recording / analyzing devices for sudden phenomena.

[0002]

[Prior art]

 Conventionally, there has been an analysis device that uses an optical disk to search in memory by using an optical disk to analyze sudden phenomena during FA equipment, clinical medicine, food manufacturing, and automatic food packaging processes. Contrary to the advantage of being fast, there was a defect that the device was expensive.

[0003]

[Problems to be solved by the present invention]

 In the conventional device, since expensive equipment is used for assembly, the entire equipment becomes expensive, and it is difficult to introduce and use it in the above fields.

However, the apparatus for recording and analyzing a sudden phenomenon of the present invention records a video signal of a video camera or the like on a VTR and analyzes it by capturing it on a monitor.

Further, the present invention provides a mechanism that allows a commercially available VTR to be set as it is, and allows purchasers to replace VTRs that are extremely frequently used by themselves, further simplifying the components of the mechanism to reduce the cost. I was able to make it.

[0006]

[Means for Solving the Problems]

 The present invention is a unit for recording a video signal of a video camera or the like on a VTR and capturing the recorded video on a monitor for analysis.

The video signal to be monitored by the start is recorded on the VTR for continuous recording while adding a real-time display, and during the recording, when an external trigger signal is sent to notify the control unit of the occurrence of the sudden phenomenon, the sudden trigger occurs. Continuous recording is stopped for a predetermined time after the phenomenon occurs, and after the stop, the VTR is rewound from the occurrence time of the sudden phenomenon to the predetermined time after the occurrence and from the occurrence time to the recording recording of the predetermined time before the occurrence. When the VTR catches the sudden phenomenon, and before and after the unexpected phenomenon occurs, the separately-stored recording VTR that is in the stopped state is started simultaneously with the stop of the VTR. A recording / analyzing device for an unexpected phenomenon, characterized in that a recording record for a predetermined time is stored, and the recording recorded by the VTR is captured and analyzed by a monitor. .

[0008]

[Action]

 The operation of the present invention will be described below.

The installation of the device of the present invention is widely used in FA equipment, medical-related, food-related, etc. In the field of food packaging, for example, during the process of being packaged for a long time in various types of packaging processes to be a finished product. It is used to check where the position where the sudden phenomenon occurred.

First of all, the video signal monitored by the video camera is recorded on the VTR for continuous recording, and the video signal of the video camera or the like is recorded by adding a real time display of day, hour, minute, second and total of 8 digits. .

At the time of the above recording, when an external trigger signal of a signal for notifying the controller of the occurrence of the sudden phenomenon comes, the VTR continues and stops the continuous recording for a predetermined time set in advance. When stopped, the recording is rewound from a predetermined time after the occurrence to a predetermined time before the occurrence, starting from the time of occurrence of the sudden phenomenon. At the same time as it is rewound, the continuous recording VTR activates the analog switch of the recording signal switching unit connected to the central processing unit to transmit the recording signal and start recording the monitoring video from the camera. At the same time, separate storage recording VTRs start the recording operation of the video signal for a predetermined time before the occurrence of the sudden phenomenon and for a predetermined time after the occurrence. It stops when the operation ends.

Therefore, when the continuous recording VTR is rewound for the predetermined time before the occurrence of the predetermined sudden phenomenon, the storage recording VTR is stopped. The predetermined time before and after the occurrence of the above-mentioned sudden phenomenon can be set from 1 second, but since it is meaningless for VTR control, it is set to 10 seconds to 300 seconds, for example.

By the above operation steps, the sudden phenomenon recorded in the VTR is captured and analyzed on the monitor.

As described above, when the continuous recording VTR is near the tape end (about 5 minutes before), the VTR control unit gives a rewinding instruction. As a result, the continuous recording VTR starts recording the surveillance video after a few minutes of the instruction to rewind (a time sufficient for the rewind to be completed).

A data set such as time and time (T1, T2) model is set by a push switch, and its confirmation means is displayed in a menu on the monitor.

Furthermore, during the rewinding time of the continuous recording VTR, in order not to overlook a sudden phenomenon that has occurred, it is also possible to use an auxiliary backup recording VTR for backup until the end of the rewinding.

[0017]

【Example】

 An embodiment of the present invention will be described below.

Reference numeral 1 denotes a continuous recording VTR having a remote control light receiving unit 2 built therein, 3 denotes a storage recording VTR having a remote control light receiving unit 2 built therein, and 4 denotes a backup recording VTR having a remote control light receiving unit 2 built therein. Reference numeral 5 is a VTR control unit connected to the central processing unit 6, and this unit controls each function of the above-mentioned VTRs 1, 3, 4 such as pause, recording, fast forward, stop, rewind, and reproduction, and each VTR. The semiconductor switch 7 is provided. Reference numeral 8 denotes a recording signal switching unit, which has an analog switch 9 for switching. Reference numeral 10 is a camera, and 11 is a time adding unit that connects the camera 10 and the central processing unit 6, and is also connected to the recording signal switching unit 8 described above. Reference numeral 12 is a time calculation unit connected to the central processing unit 6, and 13 is a stored signal switching unit having an analog switch 14 connected to the central processing unit 6. The switching unit 13 is connected to each of the VTR1, VTR3 and VTR4. The storage recording VTR 3 is connected to the CRT (monitor) 15.

[0019]

【effect】

 (1) The present invention records a video signal to be monitored on a VTR for continuous recording, and when an external trigger signal for notifying the control unit of the occurrence of a sudden phenomenon is received during recording, a predetermined preset value is set from the time when the sudden phenomenon occurs. After that, the continuous recording is stopped for a later time, and after the set time described above, it is rewound from the time when the sudden phenomenon occurs to a predetermined time before the sudden occurrence occurs, and when returning, the VTR starts the playback operation. At the same time as it enters, a separate storage recording VTR is operated to record the recorded recording video for a predetermined time after and before the occurrence of the sudden phenomenon that was recorded and recorded in the continuous VTR, and the recorded video is displayed on the monitor. Since it is grasped and analyzed, it has the advantage that the cause of the sudden phenomenon can be analyzed very easily and reliably.

(2) Further, the present invention has a mechanism in which a commercially available VTR for home use can be used as it is without modification, so that the purchaser can replace the VTR by himself, and therefore the seller does not need maintenance. It has the advantage of two birds with one stone. Further, since the constituent members of the mechanism are simplified, it has an advantage that it can be manufactured at low cost.

[Brief description of drawings]

FIG. 1 is a block diagram showing a device for recording and analyzing a sudden phenomenon according to the present invention.

[Explanation of symbols]

1 ... Continuous recording VTR 2 ... Remote control light receiving unit 3 ... Saving recording VTR 4 ... Backup recording VTR 5 ... VTR control unit 6 ... Central processing unit 7 ... Semiconductor Switch 8 ... Recording signal switching unit 9, 14 ... Analog switch 10 ... Camera 11 ... Time addition unit 12 ... Time calculation unit 1
3 ... Save signal switching unit

Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI Technical display location H04N 7/18 U 7734-5C H04N 5/91 K

Claims (1)

[Scope of utility model registration request] 1. A unit for recording a video signal of a video camera or the like on a VTR, capturing the recorded video on a monitor and analyzing the video, and continuously monitoring the video signal by adding a real-time display. When recording to the VTR for recording, and during the recording, an external trigger signal is sent to notify the control unit of the occurrence of the sudden phenomenon, continuous recording is stopped for a predetermined time after the sudden phenomenon occurs, and after the stop, the VTR suddenly occurs. From the time of occurrence to the predetermined time after the occurrence and from the time of occurrence to the recording and recording for a predetermined time before the occurrence and stop, and at the same time when the VTR is stopped The VTR is started to save the recording record of the VTR captured at the time of the occurrence of the sudden phenomenon, before and after the occurrence of the sudden phenomenon, and by the VTR. A recording / analyzing device for sudden phenomena, which is characterized by capturing the recorded image on the monitor for analysis.