JPH0828027B2 - Drive control device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive control device used for an autochanger or the like having a plurality of drive devices for recording, reproducing, erasing, etc. on a medium (recording medium).

2. Description of the Related Art FIG. 4 shows an automatic changer 42 equipped with a conventional drive control device 41.
Is provided with, for example, two drive devices 43 and 44.

In FIG. 4, the drive control device 1 selects the drive devices 43 and 44 according to the drive designation input via the input unit 45, and performs recording and reproduction on the medium (recording medium) of the selected drive devices 43 and 44. It has a control unit 46 for erasing and so on.

Here, the drive designation input via the input unit 45 is
There are two types of drive designations that are valid regardless of the usage status of the drive devices 43 and 44, and drive designation that selects unused drive devices 43 and 44 according to the usage status of the drive devices 43 and 44.

Next, the operation of the above-mentioned conventional example, particularly the operation of the control section 46, will be described with reference to FIGS.

In step 51 shown in FIG. 5, the data D indicating the drive devices 43 and 44 in use are reset (D = 0), and in step 52, drive designation information “0”, “1”,
When "4" and "5" are input, the process proceeds to step 53.

When the drive designation information “0” is input in step 52, the process proceeds from step 53 to step 60 to select the drive device (A) 43, and in the following step 61, the data D indicating the drive device (A) 43 in use is input. Set (D
= A). Next, at step 64 shown in FIG. 6, command processing such as recording, reproducing, and erasing on the medium of the drive device (A) 43 is performed.

When the drive designation information "1" is input in step 52, the process proceeds from step 53 to step 54 to step 62, and the drive device (B) 44 is selected. Subsequent steps
In 63, data D indicating the drive device (B) 44 in use
Is set (D = B), and in step 64, command processing such as recording, reproducing, and erasing of the medium of the drive device (B) 44 is performed.

That is, the drive designation information “0” and “1” are valid drive designations regardless of the usage states of the drive devices 43 and 44.

When the designation information other than the drive designation information “0” or “1” is input in step 52, the process proceeds from step 53 to step 55 to step 55, and whether the drive device (A) 43 is in use is determined by the data D. Determine.

If the drive device (A) 43 is not in use, the process proceeds from step 55 to step 56 to determine whether the drive device (B) 44 is in use. If the drive device (B) 44 is in use Is branched to step 60 and subsequent steps to select the drive device (A) 43, and if the drive device (B) 44 is not in use, the process proceeds to step 58.

If it is determined in step 55 that the drive device (A) 43 is in use, the process branches to step 57 to determine whether the drive device (B) 44 is in use. If drive device (B) 44 is in use, proceed to step 58. If drive device (B) 44 is not in use, step 62.
Then, drive device (B) 44 is selected.

That is, when the designation information other than the drive designation information “0” or “1” is input, if one of the drive devices 43 and 44 is in use, the other unused one is selected, and the drive device 43,
If both 44 are in use or not in use, proceed to step 58 and below.

In step 58, it is determined whether or not the drive designation information is "4". If YES, the process branches to step 60 and below to select the drive device (A) 43. If NO, the process proceeds to step 59 to drive. It is determined whether the designated information is "5". If it is determined in step 59 that the drive designation information is "5", the flow advances to step 62 to select the drive device (B) 44, and if NO, the flow returns to step 52.

Therefore, in the above conventional example, the drive designation information "4" and "5" are drive designations for selecting the drive devices 43 and 44 when both the drive devices 43 and 44 are in use or unused.

However, in the above-mentioned conventional drive control device, when the designation information other than the drive designation information “0” or “1” is input, when one of the drive devices 43, 44 is in use, it is not When the other of the drive units 43 and 44 is selected and both drive units 43 and 44 are in use or not in use, the drive units 43 and 44 are selected according to the designated information. appear.

Therefore, there is a problem in that the endurance times of the drive devices 43 and 44 also become uneven, and when one of the drive devices 43 and 44 reaches the usage limit, the entire autochanger 42 reaches the usage limit.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to provide a drive control device that can use a plurality of drive devices on average.

Means for Solving the Problems In order to achieve the above object, the present invention comprises means for controlling a plurality of drive devices, and means for storing the cumulative operation time of each drive device controlled by the control means. When the drive designation information for designating the drive device is input, the accumulated operation time of each drive device stored in the storage means is referred to, the drive device having the shortest accumulated operation time is selected, and the selected drive is selected. And means for controlling the device so that the control means controls it.

Effect According to the present invention, since the drive device having the shortest cumulative operation time is selected by the above-described configuration, the usage time of each drive device is not biased, so that a plurality of drive devices can be used on average.

Embodiments Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an autochanger equipped with a drive control device according to an embodiment of the present invention, and FIGS. 2 and 3 are flowcharts for explaining the operation of the drive control device of FIG. .

In FIG. 1, reference numeral 1 denotes a drive control device of the autochanger 6, and the drive control device 1 selects the drive devices 3 and 4 in accordance with a command input via the input unit 2 and drives the drive devices 3 and 4. A control unit 5 for performing recording, reproduction, erasing, etc. on the medium (not shown).

The drive control device 1 also includes a memory unit 7, and the memory unit 7 has an area for storing data D indicating the drive devices 3 and 4 in use, the drive device 3,
4 has an area for storing the cumulative operation times a and b of No. 4, an area for storing the command processing time H, and the like.
The accumulated operation time a and b is "0" when the device is shipped.
Is set to

The reference numeral 8 indicates that if valid designation information “0” or “1” is input regardless of the usage status of the drive devices 3 and 4, even if the designated drive devices 3 and 4 are in use, When the selection information is input and designation information other than the designation information “0” or “1” is input, the accumulated operation time a is referred to by referring to the accumulated operation times a and b of the drive devices 3 and 4 stored in the memory unit 7. This is a learning unit that selects a drive device.

Next, the operation of the above embodiment will be described with reference to FIGS. 2 and 3.

In step 11 shown in FIG. 2, the data D indicating the drive devices 3 and 4 in use are reset (D = 0), and in step 12, the drive designation information “0”, “1”,
When “4” and “5” are input, the process proceeds to step 13.

When the drive designation information “0” is input in step 12, the process jumps from step 13 to step 20 to select the drive device (A) 3, and in the following step 21,
Set the data D indicating the drive device 4 in use (D
= A), proceed to step 24 and below.

When information other than the drive designation information "0" is input in step 12, the process proceeds from step 13 to step 14,
It is determined whether the drive designation information “1” is input.
If YES, proceed to step 22 and drive device (B)
4 is selected, and in the following step 23, the data D indicating the drive device 44 in use is set (D = B), and the process proceeds to step 24 and thereafter.

That is, similar to the conventional example, the drive designation information “0” and “1” are valid drive designations regardless of the usage status of the drive devices 3 and 4.

If NO in step 14, that is, if information other than the drive designation information “0” or “1” is input, the process proceeds to step 15 and it is determined from the data D whether the drive device (A) 3 is in use. .

If the drive device (A) 3 is not in use, the process proceeds to step 16 to determine whether or not the drive device (B) 4 is in use. If the drive device (B) 4 is in use, step 20 and thereafter To drive device (A) 3, and if it is in use, proceed to step 18 and the following steps.

In step 15, if the drive device (A) 3 is in use, the process branches to step 17 to determine whether the drive device (B) 4 is in use, and the drive device (B)
If No. 4 is not in use, the process proceeds to step 22 and subsequent steps, and if it is in use, the process proceeds to step 18.

That is, as in the conventional example, drive designation information "0"
Or, when the designated information other than “1” is input, if one of the drive devices 3 and 4 is in use, the other unused one is selected,
If both drive devices 3 and 4 are in use or not in use, the process proceeds to step 18 and thereafter.

In steps 18 and 19, the accumulated operation times a and b of the drive devices 3 and 4 are read and compared, and the drive device (A) 3
If the operation accumulated time a of is less than or equal to the operation accumulated time b of the drive device (B) 4 (a ≦ b), the step
Go to 20 or less and select the drive device (A) 3, and the cumulative operation time b of the drive device (B) 4 becomes the drive device (A).
If it is smaller than the cumulative operation time a of 3 (b <a), the process proceeds to step 22 and thereafter to select the drive device (B) 4.

In step 24 shown in FIG. 3, the command processing time H is reset (H = 0), and the selected drive device 3,
Command processing such as recording, reproduction, and erasing on the medium of No. 4 is started, and the command processing time H is started, and when the command processing is completed, the command processing time H is ended in step 26, and the selected drive is selected. The command processing time H is added to the accumulated operation times a and b of the devices 3 and 4.
Is added (steps 27 to 29), the new drive device 3,
It is stored in the memory unit 7 as the accumulated operation times a and b of 4.

That is, according to the above embodiment, the drive devices 3, 4 are
When valid designation information other than "0" and "1" is input regardless of the usage status of the drive, the accumulated operation time a and b are calculated when both drive devices 3 and 4 are in use or unused. Since a small number of drive devices 3 and 4 are selected, it is possible to average the operation accumulated times a and b of the drive devices 3 and 4.

Therefore, even when the endurance times of the drive devices 3 and 4 are reached, there is no deviation, and the life of the autochanger 6 can be extended.

EFFECTS OF THE INVENTION As described above, according to the present invention, the accumulated operation time of each of the plurality of drive devices is stored in each of them, and the drive device having the shortest accumulated operation time is selected. Is not biased, so that a plurality of drive devices can be used on average.

[Brief description of drawings]

FIG. 1 is a block diagram showing an autochanger equipped with a drive control device according to an embodiment of the present invention, and FIGS. 2 and 3 are flowcharts for explaining the operation of the drive control device of FIG. FIG. 4 is a block diagram showing an automatic changer equipped with a conventional drive control device, and FIGS. 5 and 6 are flowcharts for explaining the operation of the drive control device of FIG. 1 ... Drive control device, 2 ... Input section, 3,4
...... Drive device, 6 ...... auto changer, 7 ...... memory section, 8 ...... learning section.

Claims (2)

[Claims] 1. When a means for controlling each of a plurality of drive devices, a means for storing an accumulated operation time of each drive device controlled by the control means, and drive designation information for designating the drive device are inputted. Means for referring to the accumulated operation time of each drive device stored in the storage means, selecting the drive device having the shortest accumulated operation time, and controlling the selected drive device to be controlled by the control means. And a drive control device having. 2. When forced drive designation information for forcibly designating a drive is input regardless of the use status of the drive device, even if the drive device designated by this forced drive designation information is in use When a drive device is selected and drive designation information other than the forced drive designation information is input, the accumulated operation time of each drive device stored in the storage means is referred to and the drive device with the shortest accumulated operation time is selected. The drive control device according to claim 1, wherein: