JP3344036B2 - Data recording device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention enables data indicating an operation state to be recorded at predetermined time intervals and stops the recording when an abnormal situation occurs, so that the process until the abnormal situation occurs can be verified. The present invention relates to a data recording device described above.

[0002]

2. Description of the Related Art For example, in a commercial VTR, when an abnormal situation such as a tape cut occurs, a data recording apparatus capable of verifying a process until the abnormal situation occurs is implemented.

That is, in such a data recording apparatus, the rotation state of each motor such as a reel, a capstan drum, etc., the tape tension of each part, the tape diameter of each reel, the tape transfer speed, the loading state, etc. Various detection data and various setting data such as the internal mode signal and the set tape speed are recorded at predetermined time intervals,
This recording is stopped when an abnormal situation occurs, so that the process up to the occurrence of the abnormal situation can be verified.

Therefore, in such a data recording apparatus, an actual system has been configured as shown in FIG. 3, for example. That is, in FIG.
Is written to the storage device 3 through the writer 2. The above-mentioned various data 1 are sequentially recorded in the storage device 3 at predetermined time intervals, and when the storage capacity of the storage device 3 becomes full, old data is erased and new data is written.

When the occurrence of an abnormal situation is detected by the abnormality detector 4, this detection signal is supplied to the writer 2 through a fixed delay unit 5, and the operation of the writer 2 is stopped. Thus, the storage device 3 stores data before the occurrence of the abnormal situation is detected and during a certain delay time after the detection.

Further, when a serviceman is dispatched due to the occurrence of this abnormal situation, the serviceman reads the contents of the storage device 3 using the reader 6. Then, the data is verified and the device is repaired, and the reset unit 7 is driven to reset the contents of the storage device 3 and the writer 2 is driven again. Further, the read data is taken back and used for studying prevention of the recurrence of an abnormal situation.

However, once an abnormal situation is detected in such a device, the operation of the writer 2 is stopped, and the subsequent data is no longer stored. For this reason, the operation of the device returns to normal after a minor abnormal situation occurs, and if a serious abnormal situation occurs afterwards without a service person dispatched, only the data of the previous minor abnormal situation is stored. A problem occurred in which data of a serious abnormal situation was not stored.

On the other hand, a system as shown in FIG. 4 has been devised. That is, in this system, the second storage device 8 is provided together with the storage device 3. Then, data is written in the first storage device 3 in the same manner as described above. When the occurrence of an abnormal situation is detected by the abnormality detector 4, this detection signal is supplied to the writer 2 through a fixed delay unit 5. Then, the operation of the writer 2 is stopped. At this time, information on occurrence of an abnormal situation is written in the storage device 3.

A power-on pulse generator 9 is provided. When this pulse is generated when the power is turned on, the operation of the writer 2 is restarted, and information on the occurrence of an abnormal situation in the storage device 3 is detected. The content is the second storage device 8
Will be posted to.

Therefore, according to this system, the latest data at the time of occurrence of an abnormal situation is always left in the second storage device 8. Further, this data is not erased even if power is turned on and off many times unless an abnormal situation occurs, and the problem of the system shown in FIG. 3 is solved.

However, when an abnormal situation occurs in the tape running system such as a tape cut, if the tape is not taken out before the next power-on, the abnormal situation will be detected again. For this reason, if the user turns the power on / off without noticing when the apparatus stops due to, for example, tape cutting, in the system of FIG. 4 described above, the data at the time of the second power on and thereafter is stored in the second storage. The data stored in the device 8 and for the first time, for example, when the tape is cut will be lost.

On the other hand, it is conceivable to prohibit the transfer to the second storage device 8 until it is reset by the reset unit 7, but in this case, the same problem as in FIG. 3 described above occurs.

[0013]

The problem to be solved is that any of the conventional systems may not be able to store or lose data required when an abnormal situation occurs.

[0014]

A first means according to the present invention records data 1 indicating an operation state at predetermined time intervals (writing unit 2 and storage device 3), and an abnormal situation occurs (abnormality detector 4). ), The recording is stopped, and the process up to the occurrence of the abnormal situation can be verified. In the data recording apparatus according to the first means, the first storage device 3 Data 1 indicating the operating state
Is provided, and when the occurrence of the abnormal situation is detected by the abnormality detector 4, the information of the occurrence of the abnormal situation is written into the first storage device 3, and When the operation is stopped, the timer means 10 is driven, the information of the occurrence of the abnormal situation is written in the first storage device 3 by the pulse signal from the power-on pulse generator 9, and the second storage is performed. When the information on the occurrence of the abnormal situation is not written in the device 8, the contents of the first storage device 3 are transcribed to the second storage device 8, and the elapse of the arbitrary time is measured by the timer means 10. This is a data recording device in which a reset unit 7 for resetting the second storage device 8 is driven when it is determined.

According to a second aspect of the present invention, in the data recording apparatus according to the first aspect, a writer 2 for writing the data 1 indicating the above-mentioned operation state into the storage device 3 is provided.
When the occurrence of the abnormal situation is detected by the abnormality detector 4, the operation of the writing unit 2 is stopped, the timer means 10 is driven, and the elapse of the arbitrary time is determined by the timer means 10. At the same time, the reset unit 7 for resetting the storage device is driven, and the operation of the writing unit 2 is restarted, and the timer unit 10
Stores the value at the time of occurrence of the abnormal condition of the timer device that continuously measures the operation time of the device, and determines the lapse of the arbitrary time by the difference between the current value of the timer device and the stored value. A data recording device.

[0016]

[0017]

[0018]

According to this, when an arbitrary time elapses after the occurrence of the abnormal situation, the suspension of the recording is canceled and the subsequent data recording is performed. Data is not stored, and data at the time of occurrence of a serious abnormal situation can be securely stored.

[0019]

FIG. 1 shows a system configuration of a data recording apparatus according to the present invention. In the figure, parts corresponding to the above-mentioned conventional example are denoted by the same reference numerals. In FIG. 1, the various data 1 described above is written to the storage device 3 through the writer 2. The above-mentioned various data 1 are sequentially recorded in the storage device 3 at predetermined time intervals, and when the storage capacity of the storage device 3 becomes full, old data is erased and new data is written.

When the occurrence of an abnormal situation is detected by the abnormality detector 4, this detection signal is supplied to the writer 2 through a fixed delay unit 5, and the operation of the writer 2 is stopped. Thus, the storage device 3 stores data before the occurrence of the abnormal situation is detected and during a certain delay time after the detection.

At the same time, when the occurrence of an abnormal situation is detected by the abnormality detector 4, this detection signal is sent to the timer means 1.
0 is supplied. For example, when a timer device (not shown) for continuously measuring the operation time of the device is provided, the timer means 10 stores the value of the timer device at the time of occurrence of an abnormal situation, and The lapse of time after the occurrence of the abnormal situation is determined based on the difference between the current value and the stored value.

When an elapse of an arbitrary time is determined by the timer means 10, the signal is supplied to the reset unit 7, and the reset unit 7 is driven to reset the contents of the storage device 3 and to execute the writing operation. 2 is driven again.

Therefore, in this apparatus, when the apparatus is light enough that a service person is not called even if an abnormal situation occurs, the reset unit 7 is driven after the elapse of an arbitrary time is determined by the timer means 10. You. This returns the device to its original state and continues to store data again.

When a serious abnormal situation occurs, such as when a serviceman is called, the contents of the storage device 3 are read by the dispatched serviceman using the reader 6, and the data is verified to repair the device. Done. Further, the read data is taken back and used for studying prevention of the recurrence of an abnormal situation.

That is, in this apparatus, even if an abnormal situation occurs, if the situation is mild, it is reset after an elapse of an arbitrary time, and when a service person is dispatched, the immediately preceding serious abnormal situation occurs. The data is stored,
This data can be read by a service person.

In this way, according to the above-described apparatus, when an arbitrary time elapses after the occurrence of the abnormal situation, the suspension of the recording is released and the subsequent data recording is performed. In an abnormal situation, data is not stored, and data at the time of occurrence of a serious abnormal situation can be securely stored.

In the above-mentioned apparatus, the timer means 1
The arbitrary time determined as 0 is a time sufficient for the serviceman to be called and dispatched, and a time period during which no serious abnormal situation occurs, for example, 10 minutes.
It is about 0 hours. Further, the timer means 10 is not limited to a method using a timer apparatus for continuously measuring the operation time of the above-described apparatus, and a separate time measuring means may be provided.
Further, the time may be measured only for the time during which the device is operated, or may be continuously measured.

Further, the reader 6 may not be built in the apparatus, but only the terminal is provided in the storage device 3 so that the service person can bring the reader 6 and read the data. The reset unit 7 may be provided with a mechanism that can be reset by a dispatched serviceman other than the timer unit 10. Further, the delay unit 5 may not be provided depending on the type of data to be stored.

FIG. 2 shows an example of a system corresponding to FIG. 4 described above. That is, in this system, the second storage device 8 is provided together with the storage device 3. Then, data is written in the first storage device 3 in the same manner as described above. When the occurrence of an abnormal situation is detected by the abnormality detector 4, this detection signal is supplied to the writer 2 through a fixed delay unit 5. Then, the operation of the writer 2 is stopped. At this time, information on occurrence of an abnormal situation is written in the storage device 3.

A power-on pulse generator 9 is provided. When this pulse is generated when the power is turned on, the operation of the writer 2 is restarted, the information of the occurrence of the abnormal condition of the storage device 3 is detected, and the information of the occurrence of the abnormal condition of the second storage device 8 is displayed. When the information is detected and this information is written in the storage device 3 and this information is not written in the storage device 8, the contents of the storage device 3 are transcribed to the storage device 8.

Further, when the occurrence of an abnormal situation is detected by the abnormality detector 4, this detection signal is supplied to the timer means 10. When an elapse of an arbitrary time is determined by the timer means 10, the signal is supplied to the reset unit 7, and the reset unit 7 is driven to reset the contents of the storage device 8.

Therefore, according to this system, the data at the time of the occurrence of the first abnormal situation is left in the second storage device 8, and this data is not erased by inadvertent turning on and off of the power supply, and this data is mild. In the case of an abnormal situation, it is reset after elapse of an arbitrary time. Thereby, the same operation and effect as those of the embodiment of FIG. 1 can be obtained.

The data recording device according to the present invention is:
The present invention can be applied not only to the above-described business VTR, but also to all data recording apparatuses that record data for the same purpose.

[0034]

According to the present invention, when an arbitrary time elapses from the occurrence of the abnormal situation, the suspension of the recording is canceled and the subsequent data recording is performed. In an abnormal situation, data is not stored, and data at the time of occurrence of a serious abnormal situation can be securely stored.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an example of a data recording device according to the present invention.

FIG. 2 is a configuration diagram of another example of the data recording device according to the present invention.

FIG. 3 is a configuration diagram of a conventional data recording device.

FIG. 4 is a configuration diagram of a conventional data recording device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Data 2 Writer 3 Storage device 4 Abnormality detector 5 Delay device 6 Readout device 7 Reset device 8 Storage device 9 Power-on pulse generator 10 Timer means

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G11B 15/02 G11B 20/00

Claims (2)

(57) [Claims] 1. A data recording apparatus for recording data indicating an operation state at predetermined time intervals, and stopping the recording when an abnormal situation occurs, so that a process until the abnormal situation occurs can be verified. And a writer for writing the data indicating the operation state in the first storage device is provided, and when the occurrence of the abnormal situation is detected by the abnormality detector,
After the information on the occurrence of the abnormal situation is written into the first storage device, the operation of the writer is stopped,
The timer means is driven, and information on occurrence of the abnormal situation is written in the first storage device by a pulse signal from a power-on pulse generator.
When the information of the occurrence of the abnormal situation is not written in the second storage device, the contents of the first storage device are transcribed to the second storage device, and the timer means is used for the arbitrary time. A data recording device in which a reset unit for resetting the second storage device is driven when the elapsed time is determined. 2. The data recording apparatus according to claim 1, further comprising: a writer for writing the data indicating the operation state to the storage device, wherein when an abnormality detector detects the occurrence of the abnormal situation,
When the operation of the writer is stopped, the timer is driven, and when the timer determines that the arbitrary time has elapsed, a resetter for resetting the storage device is driven, and the writing is performed. The operation of the timer is resumed, and the timer means stores the value at the time of occurrence of the abnormal condition of the timer device that continuously measures the operation time of the device, and calculates the current value of the timer device and the stored value. A data recording device wherein the elapse of the arbitrary time is determined based on the difference.