JP5592139B2 - Medium detection device and medium storage device - Google Patents

Description

  The present invention relates to a medium detection apparatus and a medium storage apparatus for detecting a medium such as a magnetic tape magazine loaded and ejected by a medium storage apparatus such as a magnetic tape library apparatus.

  Currently, magnetic tape library devices are widely used as devices that enable computer data backup (see, for example, Patent Documents 1 and 2). In this magnetic tape library device (an example of a medium storage device), a plurality of magnetic tape magazines (hereinafter referred to as a magazine, an example of a medium) can be loaded / discharged (inserted / removed). A plurality of cells are provided in the magazine, and a magnetic tape medium (magnetic tape cartridge) is loaded / discharged (inserted / removed) in each cell. The magnetic tape medium is a cartridge in which a magnetic tape coated with a magnetic medium is stored in a cartridge. When such a magnetic tape library apparatus receives an instruction from the host apparatus, it mounts the instructed magnetic tape medium on the drive unit, and reads / writes data. Further, when the power is turned on, the magnetic tape library apparatus performs inventory processing (processing for managing information such as presence / absence of magnetic tape medium, addition, ejection, and movement). By this processing, the magnetic tape library apparatus stores which magnetic tape medium is loaded in which magazine.

JP 2006-196075 A JP 2008-287828 A

  By the way, the magnetic tape library apparatus has a function (emergency emergency) that allows the magazine to be ejected even when the power is off so that the magnetic tape medium loaded in the apparatus can be immediately taken out in an emergency (for example, when a disaster occurs). Eject mechanism).

  In addition, the inventory process described above may be performed every time the power is turned on when the number of magnetic tape media is small, but when the number of magnetic tape media is large, the time required for the inventory process becomes long, For example, there arises a problem that operations such as data reading and writing cannot be performed immediately. Therefore, in the magnetic tape library device, the loading location of the magnetic tape medium is stored immediately before the power is turned off, stored even when the power is turned off, and stored when the power is turned on next time. It has a function (inventory skip mode) that can omit the inventory process by reading the loading location.

  In the magnetic tape library apparatus having these two functions, the power is turned off while the inventory skip mode is set, and the magazine is ejected by the emergency eject mechanism while the power is off. In some cases, the magnetic tape medium is replaced and the magazine is reloaded into the apparatus. In such a case, when the power is turned on next time, the inventory process is omitted even though the loading location of the magnetic tape medium stored when the power is turned off is different from the actual loading location. A malfunction occurs. This is because the magnetic tape library apparatus cannot detect magazine ejection and reloading performed while the power is off.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a medium detection device and a medium storage device that can detect ejection and reloading of a medium performed while the medium storage device is powered off. .

  In order to achieve the above object, a medium detection device according to the present invention is a medium detection device provided in a medium storage device that loads and discharges a medium, and discharges the medium while the power of the medium storage device is off. An interlocking member that is linked to the operation and enters a predetermined state, and detects the state of the interlocking member before the medium storage device is turned off after the medium has been loaded and notifies the control means of the medium storage device Detecting notification means for detecting when the medium storage device is powered on again, detecting the state of the interlocking member and notifying the control means of the medium storage device. To do.

  The medium storage device of the present invention includes the medium detection device of the present invention and a control unit that performs comparison, determination, and control based on a notification from the medium detection device, and the control unit completes loading of the medium. After comparing the detection result notified from the medium detection device before the power of the own device is turned off and the detection result notified from the medium detection device when the power of the own device is turned on again, If the detection results match, it is determined that the medium has not been discharged while the power of the device is off. If the detection results do not match, it is determined that the medium has been discharged while the device is turned off. The control is performed according to the determination result.

  According to the present invention, it is possible to detect ejection and reloading of a medium performed while the medium storage device is powered off.

It is a figure which shows the structural example of the magnetic tape library apparatus which concerns on one Embodiment of this invention. It is a perspective view which shows the example of arrangement | positioning of the magazine detection apparatus in the magnetic tape library apparatus concerning one Embodiment of this invention. It is a figure which shows the structural example of the magazine detection apparatus which concerns on one Embodiment of this invention. It is a perspective view which shows the structural example of the rotating member of the magazine detection apparatus which concerns on one Embodiment of this invention. It is a figure which shows the example of a transition at the time of operation | movement of the magazine detection apparatus which concerns on one Embodiment of this invention. It is a figure which shows the example of a transition at the time of operation | movement of the magazine detection apparatus which concerns on one Embodiment of this invention. It is a flowchart which shows the operation example (1st Embodiment) of the magazine detection apparatus and magnetic tape library apparatus which concern on one Embodiment of this invention. It is a flowchart which shows the operation example (2nd Embodiment) of the magazine detection apparatus and magnetic tape library apparatus which concern on one Embodiment of this invention. It is a flowchart which shows the operation example (3rd Embodiment) of the magazine detection apparatus and magnetic tape library apparatus which concern on one Embodiment of this invention. It is a figure which shows the example of a transition at the time of operation | movement of the magazine detection apparatus which concerns on one Embodiment of this invention (4th Embodiment). It is a flowchart which shows the operation example (4th Embodiment) of the magazine detection apparatus and magnetic tape library apparatus which concern on one Embodiment of this invention. It is a figure which shows the example of a transition at the time of operation | movement of the magazine detection apparatus which concerns on one Embodiment of this invention. It is a figure which shows the example of a transition at the time of operation | movement of the magazine detection apparatus which concerns on one Embodiment of this invention. It is a figure which shows the structural example (5th Embodiment) of the magnetic tape library apparatus which concerns on one Embodiment of this invention. It is a perspective view which shows the example of arrangement | positioning (5th Embodiment) of the magazine detection apparatus in the magnetic tape library apparatus concerning one Embodiment of this invention. It is a figure which shows the structural example (5th Embodiment) of the magazine detection apparatus which concerns on one Embodiment of this invention. It is a figure which shows the example of a transition at the time of operation | movement of the magazine detection apparatus which concerns on one Embodiment of this invention (5th Embodiment). It is a figure which shows the example of a transition at the time of operation | movement of the magazine detection apparatus which concerns on one Embodiment of this invention (5th Embodiment). It is a figure which shows the example of a transition at the time of operation | movement of the magazine detection apparatus which concerns on one Embodiment of this invention (5th Embodiment). It is a flowchart which shows the operation example (5th Embodiment) of the magazine detection apparatus and magnetic tape library apparatus which concern on one Embodiment of this invention. It is a figure which shows the irregular transition example (5th Embodiment) at the time of operation | movement of the magazine detection apparatus which concerns on one Embodiment of this invention.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments (embodiments) for carrying out the present invention will be described in detail with reference to the accompanying drawings.

[First Embodiment]
FIG. 1 is a diagram showing a configuration example of a magnetic tape library device 1 (hereinafter also referred to as device 1) according to an embodiment of the present invention. A magnetic tape magazine (hereinafter referred to as a magazine) 5 is loaded / discharged from a magazine insertion slot 9. The mechanical switch 11 detects the presence or absence of the magazine 5 due to loading / discharging. The magazine 5 is provided with a plurality of cells, and a magnetic tape medium 6 is loaded in each cell. In FIG. 1, as an example, six magnetic tape media 6 are loaded per magazine. In FIG. 1, only one magazine 5 is shown, but a plurality of magazines 5 can be loaded. Further, the magnetic tape library apparatus 1 includes the emergency eject mechanism described above. Although not shown in FIG. 1, a power supply device that supplies electricity for operating the magnetic tape library apparatus 1 is also provided.

  After the loading of the magazine 5 is detected, the magnetic tape medium 6 is transported by the transport mechanism (accessor mechanism) 7 and loaded into the drive unit 2. The control board 3 instructs the drive 2 to read or write data based on a command received from a host device (for example, an information processing device) or the operation panel 8 connected via the interface 4. The drive unit 2 reads or writes data on the loaded magnetic tape medium 6 based on an instruction from the control board 3. The magnetic tape medium 6 from which data has been read or written is again transported by the transport mechanism 7 and returns to the original loading location in the magazine 5.

  The control board 3 is a control means for controlling the operation of the magnetic tape library apparatus 1. For example, when the power source of the magnetic tape library apparatus 1 is turned on, the control board 3 performs the above-described inventory processing for the magazine 5 loaded. Further, for example, when the control board 3 is instructed by the host apparatus or the operation panel 8 to set the above-described inventory skip mode, the control board 3 stores the loading location of the magnetic tape medium 6 in the nonvolatile memory 10 immediately before the power is turned off. Then, it is stored even when the power is turned off, and when the power is turned on next time, the stored loading location is read from the nonvolatile memory 10, thereby omitting the inventory process.

  The magnetic tape library apparatus 1 of this embodiment shown in FIG. 1 is characterized by including a magazine detection device 13. The magazine detection device 13 can detect that the magazine 5 (an example of a medium) has been ejected and reloaded when the magnetic tape library device 1 is powered off. In response to this detection result, the control board 3 performs an appropriate operation. In this embodiment (and each embodiment described later), a magnetic tape library device 1 is used as a medium storage device of the present invention that can store one or a plurality of media (for example, magazines 5) and detects discharge and reloading of the media. Explained as an example. Hereinafter, the magazine detection device 13 of the present embodiment will be described in detail.

  FIG. 2 is a perspective view showing an arrangement example of the magazine detection device 13 in the magnetic tape library device 1 of the present embodiment. As shown in FIG. 2, the magazine detection device 13 is provided, for example, inside the side surface of the magnetic tape library device 1 (shaded portion in the figure). As shown in FIG. 2, an opening is formed on the side of the space in which the magazine 5 is inserted, and the lever 23 protrudes from the opening. When the magazine 5 is loaded into the apparatus 1, the lever 23 is pushed in the loading direction (the arrow direction in the figure) by the tip portion of the magazine 5.

  FIG. 3 is a diagram illustrating a configuration example of the magazine detection device 13. FIG. 3A is a diagram (cross-sectional view) of the magazine detection device 13 viewed from directly above, and FIG. 3B is a diagram viewed from the direction of the arrow in FIG. The opening portion shown in FIG. 3B corresponds to the opening portion shown in FIG. As shown in FIGS. 3A and 3B, the magazine detection device 13 includes a shaft 20, a flag 21, a cam 22, a lever 23, a sensor 27, an elastic member (for example, a leaf spring) 24, a fastener 25, and a member 26. Have The shaft 20, the flag 21, the cam 22, and the lever 23 are rotating members that rotate in conjunction with loading and discharging of the magazine 5. Therefore, the rotating member can also be called an “interlocking member”.

  FIG. 4 is a perspective view illustrating a configuration example of the rotating member. As shown in FIG. 4, a flag 21, a cam 22, and a lever 23 are integrally or fixedly formed on a columnar shaft 20 at predetermined intervals. As described above, the lever 23 is pressed at the tip of the magazine 5 when the magazine 5 is loaded, and rotates around the shaft 20 counterclockwise, for example. The rotation of the lever 23 causes the flag 21 and the cam 22 on the same axis to rotate in the same manner. Detailed operation of the rotating member will be described later. In FIGS. 3A and 3B, the rotating member is supported by a support member (not shown). Further, in the present embodiment (and each embodiment described later), the rotating member is rotated by pressing the lever 23 directly on the magazine 5 to be loaded. However, the present invention is not limited to this. For example, a lever, gear, belt, or the like is used between the rotating member (lever 23) and the magazine 5 and the lever 23 is indirectly pressed by loading the magazine 5 so that the rotating member rotates. Good.

  As shown in FIG. 3B, a sensor 27 is provided between the flag 21 and the cam 22. The sensor 27 is also supported by a support member (not shown). The sensor 27 has a function of detecting the flag 21 when it overlaps with the flag 21 and notifying the control board 3 of the detection result (whether the flag 21 is detected) when the apparatus 1 is powered on. . Therefore, the sensor 27 can also be referred to as “detection notification means”.

  As shown in FIG. 3B, an elastic member 24 is disposed above the cam 22. As shown in FIG. 3A, the elastic member 24 is fixed by a fastener 25 on the side surface of the member 26. The member 26 is a member constituting a cell in which the magazine 5 is accommodated (loaded), but in FIG. 3, an opening portion for allowing the lever 23 to project is also constituted. The elastic member 24 is pushed up by the rotating cam 22 and then depresses the cam 22 with a force for returning to the original position.

  Next, an operation example of the magazine detection device 13 will be described with reference to FIGS.

  First, a description will be given with reference to FIG. FIG. 5A is a diagram showing a state in which the magazine 5 has been loaded into the magnetic tape library device 1 when the magazine detection device 13 is in the state of FIG. Each arrow in the figure indicates the direction in which each member operates. As shown in FIG. 5A, the front end portion of the magazine 5 to be loaded presses the B side of the lever 23 protruding from the opening portion (see FIGS. 2 and 3B). As a result, the lever 23 rotates counterclockwise. Further, as the lever 23 rotates, the shaft 20, the flag 21, and the cam 22 rotate in the same manner, and the state shown in FIG.

  FIG. 5B shows a state where the rotating cam 22 passes below the elastic member 24 and pushes up the elastic member 24. In FIG. 5B, the sensor 27 is not shown for convenience of explanation. When the loading of the magazine 5 is completed, the rotation of the rotating member further proceeds from the state shown in FIG. 5B, and the state shown in FIG.

  FIG. 5C shows a state when loading of the magazine 5 is completed. At this time, the elastic member 24 once pushed up by the cam 22 depresses the cam 22 with a force of returning to the original position (position shown in FIG. 5A). When the cam 22 receives this force, the rotating member tries to rotate, but the A side of the lever 23 hits the magazine 5 and is pressed. At this time, the flag 21 overlaps the sensor 27 as shown in FIG. The sensor 27 notifies the control board 3 of the magnetic tape library apparatus 1 of the detection result indicating that the flag 21 has been detected when the power of the apparatus 1 is on.

  FIG. 5D shows a state when the magazine 5 is ejected from the magazine loading completion state of FIG. As shown in FIG. 5D, when the magazine 5 is discharged, the A side of the lever 23 pressed against the magazine 5 rotates. As a result, the positions of the lever 23 on the A side and the B side are opposite to those in FIG. 5A (turned 180 °). However, when the magazine 5 is loaded again, the tip of the magazine 5 The lever 23 can be pressed down on the A side. Further, as shown in FIG. 5D, the flag 21 does not overlap the sensor 27 due to the rotation of the rotating member due to the magazine 5 being discharged.

  Next, a description will be given with reference to FIG. The description of FIG. 6 is basically the same as the description of FIG. 5 described above. FIG. 6E is a diagram showing a state in which the magazine 5 is loaded in the magnetic tape library device 1 when the magazine detection device 13 is in the state shown in FIG. Each arrow in the figure indicates the direction in which each member operates. As shown in FIG. 6E, the front end portion of the magazine 5 to be loaded presses the A side of the lever 23 protruding from the opening portion (see FIGS. 2 and 3B). As a result, the lever 23 rotates counterclockwise. As the lever 23 rotates, the shaft 20, the flag 21, and the cam 22 rotate in the same manner, and the state shown in FIG.

  FIG. 6F shows a state where the rotating cam 22 passes below the elastic member 24 and pushes up the elastic member 24. In FIG. 6F, illustration of the sensor 27 is omitted for convenience of explanation. When the loading of the magazine 5 is completed, the rotation of the rotating member further proceeds from the state of FIG. 6 (f), and the state of FIG. 6 (g) is obtained.

  FIG. 6G shows a state when loading of the magazine 5 is completed. At this time, the elastic member 24 once pushed up by the cam 22 depresses the cam 22 with a force to return to the original position (position shown in FIG. 6E). When the cam 22 receives this force, the rotating member tries to rotate, but the B side of the lever 23 hits the magazine 5 and is pressed. The sensor 27 notifies the control board 3 of the magnetic tape library apparatus 1 of the detection result that the flag 21 is not detected when the power of the apparatus 1 is on.

  FIG. 6 (h) shows a state where the magazine 5 is ejected from the magazine loading completion state of FIG. 6 (g). As shown in FIG. 6 (h), when the magazine 5 is discharged, the B side of the lever 23 pressed against the magazine 5 rotates. As a result, the positions of the lever 23 on the B side and the A side are opposite to those shown in FIG. 6 (e) (rotate 180 ° and return to the position shown in FIG. 5 (a)), but the magazine 5 is loaded again. When this occurs, the tip of the magazine 5 is in a state where the B side of the lever 23 can be pressed.

  Next, operation examples of the magazine detection device 13 and the magnetic tape library device 1 according to the present embodiment will be described with reference to the flowchart of FIG.

  The magazine 5 is loaded in the magnetic tape library device 1, and the power source of the device 1 is turned on (step S1). When the magazine is loaded, the magazine detection device 13 operates as described above with reference to FIGS. The power supply of the apparatus 1 is turned on after the loading of the magazine 5 is completed as shown in FIG.

  When the mechanical switch 11 detects that the magazine 5 is present in the apparatus 1, the control board 3 performs an inventory process (step S2).

  Further, the control board 3 receives the notification of the detection result from the sensor 27 and stores in the nonvolatile memory 10 that the flag 21 is detected (step S3).

  Here, it is assumed that the inventory skip mode is set in the magnetic tape library apparatus 1 and the power of the apparatus 1 is turned off (step S4).

  It is assumed that the magazine 5 is forcibly discharged by the emergency eject mechanism while the apparatus 1 is powered off (step S5). When the magazine is discharged, the magazine detection device 13 operates as described above with reference to FIG.

  Thereafter, it is assumed that the magazine 5 is reloaded in the magnetic tape library device 1 (step S6), and the power source of the device 1 is turned on (step S7). When the magazine is reloaded, the magazine detection device 13 operates as described in FIGS. 6 (e) to 6 (g). The power source of the apparatus 1 is turned on after reloading of the magazine 5 is completed as shown in FIG.

  When the presence of the reloaded magazine 5 is detected by the mechanical switch 11, the control board 3 receives a notification of the detection result from the sensor 27, and stores the detection result in the nonvolatile memory 10 before the power is turned off. It is determined whether or not the magazine 5 has been ejected while the power is turned off by comparing the detected results with each other and whether or not they match (step S8). If the two match, it is determined that the magazine was not discharged while the power was off. On the other hand, if they do not match, it is determined that the magazine has been discharged while the power is off.

  Here, since the state after the reloading is completed is FIG. 6G, the detection result notified from the sensor 27 indicates that the flag 21 is not detected. On the other hand, the detection result stored in advance in step S3 indicates that the flag 21 is detected. Therefore, the control board 3 determines that the magazine has been discharged while the power is off because the two do not match (step S9 / YES).

  Although the inventory skip mode is being set, the control board 3 performs the inventory process on the reloaded magazine 5 without omitting the inventory process, and then starts normal operations such as data reading and writing (step S10). ).

  If the magazine 1 is not discharged and reloaded in steps S6 and S7 and the apparatus 1 is turned on (step S8), the magazine detection device 13 remains in FIG. 5C. The flag 21 remains detected by the sensor 27. Therefore, the detection result notified to the control board 3 in step S9 is that the flag 21 is detected. Therefore, in this case, the detection result coincides with the detection result stored in advance in step S3. Therefore, the control board 3 determines that the magazine is not discharged while the power is off (step S9 / NO). Then, the control board 3 omits the inventory process according to the inventory skip mode being set, and immediately starts normal operations such as data reading and writing (step S11).

  As described above, according to the present embodiment, it is possible to detect magazine ejection and reloading performed while the magnetic tape library apparatus is powered off. If discharge or reloading is detected, inventory processing can be executed even if the inventory skip mode is set. If discharge or reloading is not detected, normal operation is immediately performed according to the inventory skip mode. You can start.

  In the above description, the example in which the rotating member rotates 180 ° by loading and discharging the magazine is described, but the rotation angle is not limited to this. For example, it can be realized by 90 ° rotation. Examples thereof are shown in FIGS. Each figure of Drawing 12 (a)-Drawing 13 (h) is a figure which showed a mode of rotation of a rotating member continuously. As shown in FIG. 12A, the rotating member is formed by integrating the shaft 20, the flag 21, the cam 22, and the two levers 23a and 23b. The difference from the 180 ° rotating member described above (FIG. 3) is that there are two levers that intersect at 90 °, the flag has three protrusions a, b, and c, and the cam has a square shape. It is to be configured. Further, the magazine detection device 13 is different in that it includes two sensors (27a and 27b) for detecting the flag 21. The operations of these units are the same as those described above. That is, when the magazine is loaded, the lever is pressed and the rotating member rotates 90 °, and when the magazine is ejected, the cam 22 is pressed by the elastic member 24 and the rotating member rotates 90 °.

  First, when the magazine 5 is loaded at the time of FIG. 12A, the rotating member rotates counterclockwise, and the state shown in FIG. 12B is obtained. FIG. 12B shows a state where the c portion of the flag 21 is detected by being overlapped with the sensor 27b. At this time, the cam 24 is pushed down by the elastic member 24 by the force of returning to the original state of the elastic member 24 and is going to rotate counterclockwise. However, the lever 23a does not rotate on the magazine 5 that has been loaded. When the magazine 5 is ejected in the case of FIG. 12B, the state shown in FIG.

  In the case of FIG. 12C, when the magazine 5 is loaded, the rotating member rotates counterclockwise, and the state shown in FIG. FIG. 12D shows a state where the b portion of the flag 21 overlaps the sensor 27a and is detected. At this time, the cam 24 is pushed down by the elastic member 24 by the force of returning to the original state of the elastic member 24 and is going to rotate counterclockwise. However, the lever 23b is not rotated on the magazine 5 that has been loaded. When the magazine 5 is ejected in the case of FIG. 12D, the state shown in FIG.

  When the magazine 5 is loaded at the time of FIG. 13 (e), the rotating member rotates counterclockwise, and the state shown in FIG. 13 (f) is obtained. FIG. 13 (f) shows a state in which the “a” portion of the flag 21 is detected by overlapping both the sensors 27 a and 27 b. At this time, the cam 24 is pushed down by the elastic member 24 by the force of returning to the original state of the elastic member 24 and is going to rotate counterclockwise. However, the lever 23a does not rotate on the magazine 5 that has been loaded. When the magazine 5 is ejected at the time of FIG. 13 (f), the state of FIG. 13 (g) is obtained.

  When the magazine 5 is loaded at the time of FIG. 13 (g), the rotating member rotates counterclockwise, and the state shown in FIG. 13 (h) is obtained. FIG. 13H shows a state in which no part of the flag 21 overlaps the sensors 27a and 27b and is not detected by any sensor. At this time, the cam 24 is pushed down by the elastic member 24 by the force of returning to the original state of the elastic member 24 and is going to rotate counterclockwise. However, the lever 23b is not rotated on the magazine 5 that has been loaded. When the magazine 5 is ejected in the case of FIG. 13 (h), the state shown in FIG. 12 (a) is obtained.

  Thus, in the example shown in FIGS. 12 and 13, 4 in FIGS. 12B, 12 D, 13 F, and 13 H is configured by using the flag 21 and the sensors 27 a and 27 b. One state can be detected. Therefore, the control board 3 can recognize the four states based on the notification from each sensor. The control board 3 stores the state when the magazine 5 is loaded before the power is turned off, and when the power is turned on again, does the state at that time match the state stored in advance? It is possible to detect whether the magazine 5 has been ejected or reloaded.

[Second Embodiment]
This embodiment has the same basic configuration and operation as the first embodiment, but instead of the sensor 27, a rotation detection means that can detect that the rotating member has rotated 180 ° is provided. Is different. Here, an example of rotation detection means will be described as a counter. Note that the installation location of the counter is not shown in FIG. 3 as long as it can detect the rotation of the rotating member.

  The counter counts (detects) the number of times the rotating member has rotated 180 °. For example, the state of the rotating member shown in FIG. The count number at this time is, for example, “0”. Thereafter, the rotating member is sequentially brought into the states of FIGS. 5D, 6E, 6F, and 6G by discharging and reloading the magazine 5. In the state shown in FIG. 6G, since the rotating member has rotated 180 °, the counter counts the number of 180 ° rotations as “1”. The counter has a function of setting the count number to a predetermined number (for example, “0”) in response to an instruction from the user at the start of counting (immediately before the magnetic tape library apparatus 1 is turned off). Have. The counter has a function of notifying the control board 3 of the count result (the number of counts) when the magnetic tape library apparatus 1 is powered on. Therefore, the counter can also be referred to as “detection notification means”.

  Next, an operation example of the magazine detection device 13 and the magnetic tape library device 1 of the present embodiment will be described with reference to the flowchart of FIG.

  Steps S21 to S22 are the same as steps S1 to S2 in FIG. 7 described above, and thus description thereof is omitted here.

  In response to an instruction from the user, the counter sets the count to, for example, “0” and notifies the control board. The control board 3 receives the count number notification from the counter and stores the count number “0” in the nonvolatile memory 10 (step S23).

  Steps S24 to S27 are the same as steps S4 to S7 in FIG. 7 described above, and thus description thereof is omitted here.

  When the presence of the reloaded magazine 5 is detected by the mechanical switch 11, the control board 3 is notified of the count result (count value) from the counter, and the control board 3 is nonvolatile before the power is turned off. The number of counters stored in the memory 10 is compared, and it is determined whether or not the magazine 5 has been ejected while the power is off based on whether or not the two match (step S28). If the two match, it is determined that the magazine was not discharged while the power was off. On the other hand, if they do not match, it is determined that the magazine has been discharged while the power is off.

  Steps S29 to S31 are the same as steps S9 to S11 of FIG. 7 described above, and a description thereof is omitted here.

  As described above, according to this embodiment, it is possible to detect ejection and reloading of the magazine 5 without using the sensor 27 described in the first embodiment. That is, in the first embodiment, the magazine can be detected when the magazine is discharged and reloaded an odd number of times. However, in the present embodiment, the odd number and the even number of times can be detected. The discharge and reload can be detected no matter how many times the discharge and reload are performed. In the above description, as an example, the user sets the count number “0” and uses “0” as a reference, but the user does not necessarily need to set the count number. When there is no setting by the user, the count number at that time becomes a reference. However, if the number of counts becomes too large due to detection of ejection and reloading to some extent, an operation to set the count number to a small number (eg, “0”) is required.

[Third Embodiment]
This embodiment has the same basic configuration and operation as the first embodiment, but the rotating member is linked to its own rotation in any of the extending directions of the shaft 20 (as indicated by the arrows in FIG. 4). It is different in that it moves by a predetermined distance in any of the directions shown in the drawing and a movement detection sensor that detects the movement of the rotating member instead of the sensor 27. In addition, since the installation location of the movement detection sensor may be a location where the movement of the rotating member can be detected in FIG.

  The movement of the rotating member is realized, for example, by passing the shaft further into the shaft 20 and making both the shafts have a screw structure relationship. A moving start point of the rotating member (hereinafter referred to as a reference point) is a predetermined point on the shaft 20. It is assumed that the reference point is determined in advance. When the rotating member is rotated by 180 °, for example, as shown in FIGS. 5A to 5D by loading and discharging the magazine 5, a predetermined direction (for example, shown on the left side of FIG. 4) is interlocked with the rotation. Move in the direction of the arrow) by a predetermined distance (for example, about 5 mm). Further, when the rotating member is rotated by 180 ° as shown in FIGS. 6E to 6H by reloading and re-ejecting the magazine 5, the rotating member moves in the same direction as described above in conjunction with the rotation. Move further by the distance (for example, about 5 mm). The rotating member has a function of being positioned at the reference point in response to an instruction from the user at the start of movement (immediately before the magnetic tape library apparatus 1 is turned off), for example.

  The movement detection sensor recognizes that there is a rotating member at the reference point, and then detects whether or not the rotating member has moved from the reference point. When the magnetic tape library apparatus 1 is powered on, the detection result is detected. Notify the control board 3. Therefore, the movement detection sensor can also be called “detection notification means”.

  Next, operation examples of the magazine detection device 13 and the magnetic tape library device 1 according to the present embodiment will be described with reference to the flowchart of FIG.

  Steps S41 to S42 are the same as Steps S1 to S2 in FIG. 7 described above, and a description thereof is omitted here.

  The rotating member is positioned at the reference point in response to an instruction from the user. When the movement detection sensor detects the presence of the rotating member at the reference point, it notifies the control board 3 that the rotating member has not moved. The control board 3 receives the notification of the detection result from the movement detection sensor, and stores in the nonvolatile memory 10 that the rotating member has not moved from the reference point (step S43).

  Steps S44 to S47 are the same as Steps S4 to S7 in FIG. 7 described above, and a description thereof will be omitted here.

  When the presence of the reloaded magazine 5 is detected by the mechanical switch 11, the control board 3 receives a notification of a detection result (whether the rotating member has moved from the reference point) from the movement detection sensor, and detects the detection. The result is compared with the detection result stored in the nonvolatile memory 10 before the power is turned off, and it is determined whether or not the magazine 5 has been discharged while the power is turned off based on whether or not they match (step S48). . If the two match, it is determined that the magazine was not discharged while the power was off. On the other hand, if they do not match, it is determined that the magazine has been discharged while the power is off.

  Steps S49 to S51 are the same as Steps S9 to S11 of FIG. 7 described above, and thus description thereof is omitted here.

  As described above, according to the present embodiment, similarly to the second embodiment, discharge and reloading of the magazine 5 can be detected without using the sensor 27 described in the first embodiment. In other words, even in this embodiment, it is possible to detect discharge and reloading regardless of how many times discharging and reloading are performed regardless of whether the number of times is odd or even. However, even in this embodiment, since the moving distance of the rotating member is limited, an operation for moving the rotating member to the reference point is required when ejection and reloading are detected to some extent.

[Fourth Embodiment]
In the present embodiment, a switch and a pressing detection unit are used instead of the rotating member used in the first to third embodiments. A configuration example and an operation example of the magazine detection device 13 of the present embodiment will be described with reference to FIG. Hereinafter, an example of the pressing detection unit will be described as a counter. Note that the installation location of the counter is not shown in FIG. 10 as long as it is a location where pressing of the switch can be detected.

  As shown in FIG. 10A, a switch 28 is provided on a surface perpendicular to the direction (arrow in the figure) in which the magazine 5 is inserted in the member 26 constituting the cell. In FIG. 10A, the switch 28 protrudes from the surface constituting the inner wall of the cell of the member 26. Thereafter, when the loading of the magazine 5 proceeds, the switch 28 is pressed by the front end portion of the magazine 5 as shown in FIG. When the loading of the magazine 5 is completed, as shown in FIG. 10C, the switch 28 is embedded in the member 26 (this is referred to as a pressed state). When the magazine 5 is discharged, as shown in FIG. 10 (d), the switch 28 protrudes from the surface of the member 26 again, and can be pressed by the magazine 5 inserted into the cell. Therefore, the switch 28 can also be referred to as an “interlocking member” that enters a predetermined state in conjunction with loading and discharging of the magazine 5.

  Further, in the state of FIG. 10C, the counter counts (detects) the number of times the switch 28 is depressed. For example, the state of the switch 28 shown in FIG. The count number at this time is, for example, “1”. Thereafter, the number of times is counted each time the switch 28 is depressed by the magazine 5 being discharged and reloaded. The counter has a function of setting the count number to a predetermined number (for example, “1”) in response to an instruction from the user at the start of the count (immediately before the magnetic tape library apparatus 1 is turned off). Have. The counter has a function of notifying the control board 3 of the count result (the number of counts) when the magnetic tape library apparatus 1 is powered on. Therefore, the counter can also be referred to as “detection notification means”.

  Next, an operation example of the magazine detection device 13 and the magnetic tape library device 1 of the present embodiment will be described with reference to the flowchart of FIG.

  Steps S61 to S62 are the same as Steps S1 to S2 in FIG. 7 described above, and a description thereof is omitted here.

  In response to an instruction from the user, the counter sets the count number to “1”, for example, and notifies the control board. The control board 3 receives the count number notification from the counter, and stores the count number “1” in the nonvolatile memory 10 (step S63).

  Steps S64 to S67 are the same as Steps S4 to S7 in FIG. 7 described above, and thus description thereof is omitted here.

  When the presence of the reloaded magazine 5 is detected by the mechanical switch 11, the control board 3 receives a notification of the count result (count value) from the counter, and the count result and the nonvolatile memory before the power is turned off. The count result stored in 10 is compared, and it is determined whether or not the magazine 5 has been ejected while the power is off depending on whether or not they match (step S68). If the two match, it is determined that the magazine was not discharged while the power was off. On the other hand, if they do not match, it is determined that the magazine has been discharged while the power is off.

  Steps S69 to S71 are the same as steps S9 to S11 of FIG. 7 described above, and thus description thereof is omitted here.

  As described above, according to the present embodiment, it is possible to detect discharge and reloading of the magazine 5 without using the rotating member described in the first to third embodiments. Also in this embodiment, it is possible to detect discharge and reloading regardless of how many times discharging and reloading are performed regardless of whether the number of times is odd or even. In the above description, for example, the user sets the count number “1” and uses “1” as a reference, but the user does not necessarily need to set the count number. When there is no setting by the user, the count number at that time becomes a reference. However, when the number of counts becomes too large due to detection of ejection and reloading to some extent, a reset operation is required to return the count result to a small value.

  [Fifth Embodiment]

  For example, in the first embodiment, when the magnetic tape magazine is inserted and removed many times, the flag of the interlocking member returns to the original position. Therefore, even if the magnetic tape magazine is ejected and reloaded while the power of the magnetic tape library apparatus is turned off, it may be erroneously detected that the magnetic tape magazine has not been ejected. In the present embodiment, such erroneous detection is eliminated, and the ejection of the magnetic tape magazine while the magnetic tape library apparatus is powered off can be reliably detected.

  The configuration of the magnetic tape library apparatus 1 of this embodiment will be described with reference to FIG. FIG. 14 is a cross-sectional view of the magnetic tape library device 1 as viewed from above (directly above). In FIG. 14, the same parts as those in FIG. 1 described in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 14, the magnetic tape library device 1 (hereinafter also referred to as the library device 1) of the present embodiment has a control board 3 and a power supply device 80 arranged along the left side surface of the library device 1. The power supply device 80 is a device that supplies electricity for operating the library device 1. The control device 2, the power supply device 80, and the drive unit 2 are electrically connected via a backboard. The backboard is a connector that electrically connects each device (device) in the library apparatus 1. The drive unit 2 is arranged so that the back surface thereof is located next to the power supply device 80. That is, the drive unit 2 is installed such that the entrance (extraction / extraction port) of the magnetic tape medium 6 faces the moving path of the transport mechanism (accessor mechanism) 7. This moving path is a space between the front surface and the back surface of the right side surface of the library apparatus 1. The transport mechanism 7 is movable in the direction indicated by the arrow c in the figure on the moving path. Further, the magnetic tape magazine 5 (hereinafter referred to as the magazine 5) is also loaded so that the entrance / exit of the magnetic tape medium 6 faces the moving path of the transport mechanism 7. This magazine 5 is a deep cell system, and two magnetic tape media 6 can be inserted into one cell. Since the entrance / exit of the magnetic tape medium 6 in the slot of the drive unit 2 and the entrance / exit of the magnetic tape medium 6 in each deep cell of the magazine 5 face the moving path, the transport mechanism 7 inserts and removes the magnetic tape medium from the entrance / exit. I do. Note that the magazine 5 is loaded (inserted) in the direction indicated by the arrow a in the figure at the magazine insertion slot 9 and is discharged in the direction indicated by the arrow b in the figure. Further, although not shown in FIG. 14, it is assumed that the interface 4, the nonvolatile memory 10, the mechanical switch 11, and the reverse rotation prevention ratchet 12 shown in FIG. 1 are also provided.

  The library apparatus 1 of this embodiment shown in FIG. 14 is characterized in that a magazine detection device 70 is provided inside the right side of the magazine insertion slot 9 (the back side of the operation panel 8). As shown in FIG. 14, the magazine detection device 70 is located on the moving path of the transport mechanism 7, but actually, the magazine detection device 70 is provided above the moving path, and the transport mechanism 7 is the magazine detection device. Since it can move below 70, the movement of the transport mechanism 7 is not hindered by the installation of the magazine detection device 70. Note that the installation position of the magazine detection device 70 is not limited to the position shown in FIG. The magazine detection device 70 can detect discharge and loading of the magazine 5 in the library device 1 in the same manner as the magazine detection device 13 in the first embodiment. In response to this detection result, the control board 3 performs an appropriate operation. Hereinafter, the magazine detection device 70 of the present embodiment will be described in detail.

  FIG. 15 is a perspective view showing an arrangement example of the magazine detection device 70 in the library device 1 of the present embodiment. For example, as shown in FIG. 15, the magazine detection device 70 is provided inside the right side of the magazine insertion port 9 of the library device 1 (shaded portion in the drawing). As shown in FIG. 15, an opening is formed on the side surface of the space in which the magazine 5 is inserted, and the lever 36 protrudes from the opening. Details of the lever 36 will be described later. Further, as shown in FIG. 15, a slit 51 is formed in the bracket on the right side surface of the magazine 5.

  FIG. 16 is a diagram illustrating a configuration example of the magazine detection device 70. FIG. 16A is a diagram (cross-sectional view) of the magazine detection device 70 viewed from directly above. FIG.16 (b) is the figure seen from the arrow (alpha) direction of Fig.16 (a). FIG.16 (c) is the figure seen from the arrow (beta) direction of Fig.16 (a). As illustrated in FIG. 16A, the magazine detection device 70 includes a sensor 60, a rotating member 30, and a leaf spring 40.

  The sensor 60 is provided in the vicinity of the rotating member 30 and is supported by a support member (not shown). Similar to the sensor 27 in the first embodiment, the sensor 60 detects the flag 37 when it overlaps with the flag 37 provided on the rotating member 30, and the detection result when the library apparatus 1 is powered on. It has a function of notifying the control board 3 (whether or not the flag 37 is detected). Therefore, the sensor 60 can also be referred to as “detection notification means”.

  The leaf spring 40 is provided in the vicinity of the rotating member 30 and is supported by a support member (not shown). The leaf spring 40 has a convex portion 41 formed as a substantially semicircular protrusion at the tip, and a fixed portion 42 formed at the rear end. The fixing portion 42 is fixed to a support member (not shown), and acts as a fulcrum when the rotating member 30 rotates. However, it is assumed that the leaf spring 40 is fixed at a position that does not hinder the movement of the transport mechanism 7. The convex portion 41 is a concave portion provided in the rotating member 30 by a force (working in the opposite direction of the arrow) that is pushed in the direction of the arrow by the side surface of the rotating member 30 when the rotating member 30 is rotated. It fits in either 33 or 34. By this fitting, as the state after rotation of the rotating member 30, it is possible to maintain two kinds of states, a state in which the rotating member 30 is fitted in the recessed portion 33 and a state in which the rotating member 30 is fitted in the recessed portion 34. Therefore, the leaf spring 40 can also be called “state holding means”. In this embodiment, a leaf spring is used, but other elastic members may be used.

  The rotating member 30 is supported by a support member (not shown). In the rotating member 30, the first lever 31, the second lever 36, and the flag 37 are integrally formed or fixed at predetermined intervals. In the rotating member 30, recesses 33 and 34 are formed between the first lever 31 and the second lever 36, respectively. The recesses 33 and 34 are formed integrally with the first lever 31, the second lever 36 and the flag 37. The rotating member 30 rotates clockwise and counterclockwise around the center portion 35. Details of the rotation will be described later.

  As described above, the flag 37 is detected by the sensor 60 when it is at a position overlapping the sensor 60. Therefore, in the example of FIG. 16, the flag 37 is detected by the sensor 60.

  As shown in FIG. 16C, the first lever 31 is formed in a crank shape and protrudes downward. At the tip of the first lever 31, a transport mechanism pressing portion 32 is formed integrally or fixed, and this portion is pressed by the side surface of the moving transport mechanism 7. That is, as shown in FIGS. 16A and 16B, when the transport mechanism 7 moves in the direction of the arrow c, the transport mechanism pressing portion 32 is pressed to the side surface of the transport mechanism 7. As a result, the entire rotation member 30 rotates clockwise about the center portion 35. Note that the side surface of the transport mechanism 7 shown in FIG. 16C is the same as the side surface of the transport mechanism 7 shown in FIG.

  As shown in FIGS. 16A and 16B, the tip of the second lever 36 is inserted into the side surface of the magazine 5 loaded in the library apparatus 1. A slit 51 is formed on the right side surface of the magazine 5, and the second lever 36 is inserted into the slit 51. The tip portion inserted into the slit 51 is pushed down to the side surface of the slit 51 of the magazine 5 that moves. That is, as shown in FIG. 16A, when the magazine 5 to be discharged moves in the direction of the arrow b, the tip portion inserted into the slit 51 is on the side surface (portion shown in the drawing). Pressed. As a result, the entire rotating member 30 rotates counterclockwise about the center portion 35.

  As described above, the rotating member 30 rotates in conjunction with the movement of the transport mechanism 7 and the movement of the magazine 5 (discharge operation), and thus can also be referred to as an “interlocking member”.

  The recesses 33 and 34 are formed as substantially semicircular recesses. As described above, the convex portion 41 of the leaf spring 40 is fitted into the concave portions 33 and 34. After the rotating member 30 rotates counterclockwise, the convex portion 41 fits into the concave portion 44, and after the rotating member 30 rotates clockwise, the convex portion 41 fits into the concave portion 33. Details of will be described later.

  In the example of FIG. 16, the convex portion 41 is held by the leaf spring 40 by fitting into the concave portion 33. Hereinafter, the state shown in FIG. 16 is referred to as a first state. That is, the first state is a state after the loading of the magazine 5 is completed, the tip portion of the second lever 36 is inserted into the slit 51 formed on the side surface of the magazine 5, and the flag 37 is the sensor. It is in a state where it overlaps 60 and is in a detectable position. On the other hand, the second state is a state after the magazine 5 is completely discharged (when the magazine 5 is not loaded), and is held by the leaf spring 40 when the convex portion 41 is fitted into the concave portion 34. The state is described later in detail.

  Next, an operation example of the magazine detection device 70 will be described with reference to FIGS. 17, 18, and 19.

  First, a description will be given with reference to FIG. FIG. 17A is a diagram illustrating a state of the magazine detection device 70 when the magazine 5 is not loaded in the library device 1. Before the magazine 5 is loaded, as shown in FIG. 17A, the convex portion 41 of the leaf spring 40 is held by the leaf spring 40 by fitting into the concave portion 33 of the rotating member 30. Hereinafter, the state shown in FIG. 17A is referred to as a second state. In the second state, the flag 37 does not overlap the sensor 60 and is in a position where the sensor 60 cannot be detected. In the second state, the second lever 36 is in a position where it does not contact the side surface of the magazine 5 loaded from the magazine insertion port 9.

  FIG. 17B shows a state when loading of the magazine 5 is completed. The magazine 5 is loaded (inserted) from the magazine insertion port 9 in the direction of arrow a. At this time, the rotating member 30 is arranged so that the side surface of the magazine 5 loaded does not come into contact with the second lever 36 in the second state.

  As shown in FIG. 17B, after the loading of the magazine 5 is completed, the transport mechanism 7 is moved toward the front surface of the library apparatus 1. The state at this time is shown in FIG. The transport mechanism 7 moves on the moving path in the direction of arrow c. The transport mechanism pressing portion 32 of the first lever 31 is pressed by the side surface of the transport mechanism 7 that moves. As a result, the entire rotating member 30 rotates clockwise about the center portion 35 as indicated by the arrow. By this rotation, the tip end portion of the second lever 36 moves into the slit 51 of the magazine 5, and the flag 37 moves to a position overlapping the sensor 60. Further, by this rotation, the convex portion 41 that has been fitted into the concave portion 33 is pushed out in the direction indicated by the arrow, and then is fitted into the concave portion 34 by the force of returning to the original position.

  When the convex portion 41 is fitted into the concave portion 34, the state shown in FIG. 18B, that is, the first state is maintained. The state shown in FIG. 18A is the same as the state shown in FIG. That is, in the first state, the tip of the second lever 36 is inserted into the slit 51 formed on the side surface of the magazine 5 and the position where the flag 37 overlaps the sensor 60 (the sensor 60 can detect the flag 37). ). When the power supply of the library apparatus 1 is turned on in this state, the sensor 60 notifies the control board 3 of the library apparatus 1 of the detection result indicating that the flag 37 is detected (the first state). The operation after this notification will be described later.

  FIG. 19A shows a state where the magazine 5 is discharged from the first state shown in FIG. As shown in FIG. 19A, the magazine 5 is moved in the direction of the arrow b when being ejected. Therefore, the side surface of the slit 51 shown in FIG. 19A also moves in the direction of the arrow b. Therefore, the tip end portion (the portion x in the figure) of the second lever 36 that has been inserted into the slit 51 is pushed down to the side surface of the slit 51. As a result, the entire rotation member 30 rotates counterclockwise as indicated by the arrow with the center portion 35 as the center. By this rotation, the tip end portion of the second lever 36 moves so as to be disengaged from the inside of the slit 51 of the magazine 5, and the flag 37 moves so as to deviate from the position where it overlaps the sensor 60. Further, by this rotation, the convex portion 41 that has been fitted into the concave portion 34 is pushed out in the direction indicated by the arrow, and then is fitted into the concave portion 33 by the force of returning to the original position.

  When the convex portion 41 is fitted into the concave portion 33, the state shown in FIG. 19B, that is, the second state is maintained. The state shown in FIG. 19B is the same as the state shown in FIG. That is, in the second state, the flag 37 is in a position where it does not overlap the sensor 60 (a position where the sensor 60 cannot detect the flag 37), and the tip of the second lever 36 is loaded from the magazine insertion slot 9. It is in a position where it does not come into contact with the side surface of the magazine 5 to be read. When the power of the library apparatus 1 is turned on in this state, the sensor 60 notifies the control board 3 of the library apparatus 1 of the detection result indicating that the flag 37 is not detected (the second state). The operation after this notification will be described later.

  Next, an operation example of the magazine detection device 70 and the magnetic tape library device 1 of the present embodiment will be described with reference to the flowchart of FIG.

  When the library apparatus 1 is powered on (step S81), the sensor 60 detects whether or not the flag 37 is detected, and notifies the control board 3 of the library apparatus 1 of the detection result.

  If the flag 37 is detected as a result of the detection (S82 / first state), the control board 3 omits the inventory process according to the inventory skip mode being set, and immediately performs normal operations such as data reading and writing. Start (step S84).

  If the flag 37 is not detected as a result of the detection (S82 / second state), the control board 3 starts normal operations such as reading and writing data after performing the inventory process (step S83).

  From the above, in this embodiment, the flag does not return to the original position no matter how many times the magazine is discharged and reloaded. Therefore, if the library device stores the first state before the library device is turned off, the magazine device can be ejected and reloaded any number of times while the library device is turned off. It does not return to the state of 1, but always enters the second state. This is because it is necessary to move the transport mechanism when the power is turned on to return to the first state. Therefore, according to the present embodiment, when the library apparatus is powered on again, it can be reliably detected that the magazine has been ejected.

  An irregular situation in this embodiment will be described. FIG. 21A shows a state when the magazine 5 is discharged and then returned to the first state for some reason. At this time, as shown in FIG. 21A, when the magazine 5 is loaded in the direction of the arrow a, the leading end portion of the magazine 5 presses the leading end portion of the second lever 36. As a result, the entire rotation member 30 rotates clockwise. The state at this time is shown in FIG. However, after the convex portion 41 is pushed up in the direction of the arrow by the above rotation, the force to return to the original works on the rotating member 30, so that the rotating member 30 is in the state of FIG. It will rotate counterclockwise. By this rotation, the convex portion 41 is fitted into the concave portion 34, and as a result, the first state is obtained. Therefore, even if the magazine 5 is loaded when the magazine 5 is discharged and returned to the first state for some reason, the rotating member 30 is not broken due to the magazine 5 being loaded. In this case, the control board 3 detects that the magazine has not been ejected, but even if the library apparatus 1 is used without performing inventory, the magnetic tape medium is in its original state when reading and writing. Therefore, there is no problem if the user is informed of this or inventory is performed.

  As mentioned above, although each embodiment of this invention was described, it is not limited to said each embodiment, A various deformation | transformation is possible in the range which does not deviate from the summary.

  For example, in each of the above embodiments, it is detected that a magazine (an example of a medium) is ejected and reloaded with respect to a magnetic tape library device (an example of a medium storage device). It may be detected that a magnetic tape medium (an example of a medium) is loaded / discharged from / to a magazine (an example of a medium storage device). In that case, the configuration of the magazine detection device 13 described above is mounted on the magazine itself, and operates as a magnetic tape medium detection device. As a result, it becomes possible to detect the magnetic tape medium ejected from and reloaded into the magazine. That is, the present invention provides an apparatus that can detect ejection and reloading of a medium (for example, a magazine or magnetic tape medium) with respect to a medium storage apparatus (for example, a magnetic tape library apparatus or magazine) by the above-described configuration and operation.

  Further, for example, the operation in the above-described embodiment can be executed by hardware, software, or a combined configuration of both.

  When executing processing by software, a program in which a processing sequence is recorded may be installed and executed in a memory in a computer incorporated in dedicated hardware. Or you may install and run a program in the general purpose computer which can perform various processes.

  For example, the program can be recorded in advance on a hard disk or a ROM (Read Only Memory) as a recording medium. Alternatively, the program is temporarily or permanently stored on a removable recording medium such as a CD-ROM (Compact Disc Read Only Memory), an MO (Magneto optical) disc, a DVD (Digital Versatile Disc), a magnetic disc, or a semiconductor memory. It can be stored (recorded). Such a removable recording medium can be provided as so-called package software.

  The program may be wirelessly transferred from the download site to the computer in addition to being installed on the computer from the removable recording medium as described above. Or you may wire-transfer to a computer via networks, such as LAN (Local Area Network) and the internet. The computer can receive the transferred program and install it on a recording medium such as a built-in hard disk.

  In addition to being executed in time series in accordance with the processing operations described in the above embodiment, the processing capability of the apparatus that executes the processing, or a configuration to execute in parallel or individually as necessary Is also possible.

  The present invention can be applied to an apparatus / apparatus, a system, a method, and the like that can detect that a medium or a member is ejected / reloaded to / from a storage unit.

DESCRIPTION OF SYMBOLS 1 Magnetic tape library apparatus 2 Drive part 3 Control board 4 Interface 5 Magnetic tape magazine 6 Magnetic tape medium 7 Conveyance mechanism 8 Operation panel 9 Magazine insertion slot 10 Non-volatile memory 11 Mechanical switch 12 Reverse rotation prevention ratchet 13, 70 Magazine detection apparatus 20 Axis 21 Flag 22 Cam 23 Lever 24 Elastic member 25 Fastener 26 Member 27 Sensor 28 Switch 30 Rotating member 31 First lever 32 Conveyance mechanism pressing part 33, 34 Recess 35 Central part 36 Second lever 37 Flag 40 Plate spring 41 Convex part 41 Fixing part 51 Slit 60 Sensor 80 Power supply

Claims (6)

A medium detection device provided in a medium storage device for loading and discharging a medium,
An interlocking member that interlocks with the ejection operation of the medium while the power of the medium storage device is off, and is in a predetermined state;
Detection means for detecting the state of the interlocking member and notifying the control means of the medium storage device before the medium storage device is turned off after the medium has been loaded,
The detection notification means includes
When the medium storage device is turned on again, the state of the interlocking member is detected and notified to the control means of the medium storage device ,
The interlocking member is
When the medium is ejected, the medium is pushed into the second state,
When the medium is loaded, the state does not change,
A medium detection device that is pressed by a conveying means for conveying the medium and enters a first state . A medium detection device provided in a medium storage device for loading and discharging a medium,
An interlocking member that interlocks with the ejection operation of the medium while the power of the medium storage device is off, and is in a predetermined state;
Detection means for detecting the state of the interlocking member and notifying the control means of the medium storage device before the medium storage device is turned off after the medium has been loaded,
The detection notification means includes
When the medium storage device is turned on again, the state of the interlocking member is detected and notified to the control means of the medium storage device,
The interlocking member is
It is a rotating member that is pressed and rotated by a conveying means for conveying the medium after completion of loading of the medium, and is rotated by being pressed by the medium when the medium is discharged. Medium detection device. The interlocking member is
When the medium is discharged, the medium is pressed and rotated,
The medium detecting apparatus according to claim 1 , wherein the medium detecting apparatus is a rotating member that does not rotate when the medium is loaded. Having state holding means for holding the state after the rotating member is rotated;
The rotating member is
A first lever, a second lever, and a flag;
After the loading of the medium is completed, the second lever is inserted into a slit formed on the side surface of the medium by receiving the movement of the transport means and rotating by pressing the first lever. And the first state is in a position where the flag can be detected by the detection notification means, the first state is held by the state holding means,
When the medium is discharged, the second lever inserted into the slit in response to the movement of the medium is pressed and rotated so that the second lever is not in contact with the loaded medium. And the flag is in a second state where the flag cannot be detected by the detection notification unit, and the second state is held by the state holding unit,
The detection notification means includes
3. The medium detection device according to claim 2 , wherein when the power of the medium storage device is turned on, it is detected whether or not the flag is detected and notified to the control means of the medium storage device. . The medium detection device according to any one of claims 1 to 4 ,
Control means for performing comparison, determination, and control based on notification from the medium detection device;
The control means includes
After the loading of the medium is completed and before the power of the apparatus is turned off, the detection result notified from the medium detection apparatus and when the power of the apparatus is turned on again are notified from the medium detection apparatus. Compared with the detected results,
If the detection results match, it is determined that the medium has not been discharged while the power of the device is turned off.
If the detection results do not match, it is determined that the medium has been discharged while the power of the device is turned off.
A medium storage device that performs control according to a determination result. The inventory skip mode that skips inventory processing is set before the power of the local device is turned off.
The control means includes
When it is determined that the medium has been discharged while the power is off, even if the inventory skip mode is being set, the inventory process is performed, and then control is performed to start normal operation.
6. The apparatus according to claim 5 , wherein when it is determined that the medium has not been discharged while the power is off, the inventory process is omitted according to the inventory skip mode being set and normal operation is immediately started. Medium storage device.

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