Optical disc library and control method thereof

Abstract

The present invention provides an optical disk library and a control method. The optical disk library comprises: a shell, whose width dimension is the sum of the width dimensions of at least two standard cabinets, whose depth dimension is the depth dimension of a standard cabinet, and whose height dimension is the height dimension of a standard cabinet; a plurality of disk magazine racks arranged in the shell along the width direction of the shell, and the disk magazine racks are arranged to move in a controlled manner along the width direction of the shell, so that effective space can be left between each two adjacent disk magazine racks arranged face to face to form a manipulator corridor; a manipulator is arranged to move in a controlled manner along the width direction, the depth direction and the height direction to allow the manipulator to move to a designated position of any manipulator corridor. Compared with the optical disk library in the prior art, the optical disk library can accommodate more disk magazine racks and increase the number of effective optical disks per unit cabinet.

Description

Technical Field

[0001] The present invention relates to the technical field of data storage, and in particular to an optical disk library and a control method thereof. Background Art

[0002] Large optical disk libraries usually adopt modular structure design, which is convenient for maintenance and use. In order to adapt to the standardized deployment of data centers, the cabinet external dimensions of large optical disk libraries should usually comply with the requirements of 19-inch standard cabinets.

[0003] like Figure 1 As shown in FIG. 1 , the optical disk library consists of three parts: the medium storage part, the robot 1 and the optical disk. The robot is used to load the optical disk medium into the optical drive in the optical disk group and unload and put the optical disk back after completing the read and write operation. Figure 2 As shown, the medium storage part is composed of a CD case, a CD case compartment and a shelf for accommodating the CD case compartment. The CD case is referred to as the tray 2, which can accommodate multiple CDs. The CD case compartment is referred to as the tray 3, which is used to accommodate multiple layers and columns of disc cases. The tray 2 can be inserted into the storage compartment of the tray 3 and locked, and can be unlocked and taken out from the tray 3 when needed. The shelf for accommodating multiple vertically arranged trays is called the tray rack 4, and the tray 3 can be pushed into the tray rack 4 from the front end and locked, and can be unlocked and pulled out from the tray rack 4 when needed. Under the size constraints of the standard cabinet, the most effective placement method is to arrange two tray racks face to face on both sides of the cabinet, leaving a space in the middle for the robot to move horizontally back and forth, which is called the robot corridor here.

[0004] A standard cabinet can accommodate up to two rows of tray racks and a robot corridor between the two rows of tray racks. The width of the two rows of tray racks plus the width of the robot corridor occupy most of the effective width of the entire cabinet. The remaining space on both sides is not wide enough to place more tray racks, so it can only be wasted. The placement efficiency has been maximized and no essential improvement can be made. Summary of the invention

[0005] An object of the present invention is to provide an optical disk library that can accommodate more disk magazine racks under the premise that multiple cabinets are arranged in a row.

[0006] Another object of the present invention is to further increase the number of effective optical disks per cabinet.

[0007] In particular, the present invention provides an optical disk library, comprising:

[0008] A shell, the width of which is the sum of the widths of at least two standard cabinets, the depth of which is the depth of one of the standard cabinets, and the height of which is the height of one of the standard cabinets;

[0009] A plurality of magazine racks are arranged in the shell along the width direction of the shell, and the magazine racks are configured to be controlled to move along the width direction of the shell so that effective space can be left between every two adjacent magazine racks that are arranged face to face to form a robot corridor;

[0010] The manipulator is configured to move in a controlled manner along the width direction, the depth direction and the height direction to allow the manipulator to move to a designated position of any manipulator corridor.

[0011] Optionally, each of the disk bin racks is provided with a plurality of disk bins stacked along its height direction, and each of the disk bins is arranged with a plurality of columns and layers of stacked disk boxes, and the tray of each of the disk boxes can be operably pulled out by the robot along the front opening direction of the disk bin.

[0012] Optionally, the first disk magazine rack and the 2N disk magazine rack located at both ends of the shell in the width direction are fixed to the two ends of the shell, and the front opening directions of the disk magazines in the first disk magazine rack and the 2N disk magazine rack are both toward the center of the shell, where N≥1 and is a positive integer.

[0013] Optionally, a front opening of a disk magazine in a second disk magazine rack adjacent to the first disk magazine rack faces the first disk magazine rack, so that the first disk magazine rack and the second disk magazine rack form a face-to-face arrangement structure;

[0014] The front opening of the magazine in the 2N-1 magazine shelf adjacent to the 2N magazine shelf faces the 2N magazine shelf, so that the 2N magazine shelf and the 2N-1 magazine shelf form a face-to-face arrangement structure.

[0015] Optionally, the disk magazine rack includes the first disk magazine rack, the second disk magazine rack, the third disk magazine rack, the fourth disk magazine rack, ..., the 2N-3 disk magazine rack, the 2N-2 disk magazine rack, the 2N-1 disk magazine rack and the 2N disk magazine rack, which are sequentially arranged along the width direction of the housing;

[0016] The first magazine rack and the second magazine rack form a first face-to-face magazine rack group, the third magazine rack and the fourth magazine rack form a second face-to-face magazine rack group, ..., the 2N-3 magazine rack and the 2N-2 magazine rack form an N-1 face-to-face magazine rack group, the 2N-1 magazine rack and the 2N magazine rack form an N face-to-face magazine rack group;

[0017] A face-to-face arrangement structure is formed between the two bin racks of each face-to-face bin group.

[0018] Optionally, the second disk magazine rack and the third disk magazine rack form a back-to-back arrangement structure that is close to each other and cannot be separated, and can be operably moved along the width direction of the shell to make room for effective space between the first disk magazine rack and the second disk magazine rack, thereby forming the robot corridor.

[0019] Optionally, the second disk magazine rack and the third disk magazine rack form a first back-to-back disk magazine rack group, the fourth disk magazine rack and the fifth disk magazine rack form a second back-to-back disk magazine rack group, ..., the 2N-2 disk magazine rack and the 2N-1 disk magazine rack form an N-1th back-to-back disk magazine rack group;

[0020] A back-to-back arrangement structure is formed between the two disk magazine racks of each group of back-to-back disk magazine racks, and any group of the back-to-back disk magazine racks is configured to be operably movable along the width direction of the housing;

[0021] When the i-th back-to-back magazine rack group moves along the width direction of the housing, an effective space is dynamically made available between two magazine racks in the i-th face-to-face magazine rack group to form the robot corridor, wherein i≥1;

[0022] Optionally, when the i-th back-to-back magazine rack group moves along the width direction of the housing toward the first magazine rack, an effective space is dynamically made available between two magazine racks in the i+1-th face-to-face magazine rack group to form the robot corridor, wherein i≥1;

[0023] Optionally, only one robot corridor is formed at a time.

[0024] Optionally, the manipulator comprises:

[0025] a transverse guide rail, allowing the manipulator to move along the width direction of the housing;

[0026] a longitudinal guide rail, allowing the manipulator to move along the depth direction of the housing;

[0027] The lifting guide rail allows the manipulator to move along the height direction of the shell.

[0028] Optionally, a predetermined space is reserved at the top of the shell in the height direction, between the end of the disk magazine rack in the depth direction and the back of the shell, to allow the manipulator to be controlled to move to the top along the height direction, move to the designated position along the depth direction, and then move along the width direction, thereby enabling the manipulator to cross from one manipulator corridor to another.

[0029] In particular, the present invention also provides a control method for the optical disk library as described above, which comprises the following steps in sequence:

[0030] Controlling the mechanical arm of the optical disc library to move along the height direction of the housing of the optical disc library to rise to the top of the optical disc library, and to move along the depth direction of the housing to the back of the optical disc library;

[0031] Controlling a plurality of back-to-back magazine rack groups to move along the width direction of the housing so that two facing magazine racks of the original robot corridor come together, and separating another designated group of two facing magazine racks to form another robot corridor;

[0032] Controlling the manipulator to move along the width direction of the shell to a newly formed manipulator corridor position;

[0033] The robot is controlled to move along the depth direction and the height direction of the shell to a designated disk box position in a designated disk bin.

[0034] Compared with the solution in the prior art that a standard cabinet can only accommodate two rows of disk magazine racks and a robot corridor between the two rows of disk magazine racks, in the present application, by making the robot corridor dynamically movable, the disk magazine racks of the optical disk library with multiple standard cabinet widths can share one robot corridor, and the more disk magazine racks arranged in a row, the higher the number of effective optical disks per unit cabinet width of the optical disk library can be. The unit cabinet width refers to the width of a standard cabinet.

[0035] Furthermore, by moving the back-to-back disk magazine rack groups, effective space is made between the two disk magazine racks in the face-to-face disk magazine rack groups to form a robot corridor. Moreover, in the present application, only one robot corridor is formed at the same time. When the robot corridor is formed, two disk magazine racks in one group of face-to-face disk magazine rack groups must be close together, while two disk magazine racks in another group of face-to-face disk magazine rack groups are separated or opened. In other words, multiple disk magazine racks share one robot, and a robot corridor can be dynamically formed at the same time, so that more effective space can be generated to accommodate more disk magazine racks. In other words, two relationships are formed between the disk magazine racks, close together to make effective space for other optical disc racks, or open to form a robot corridor.

[0036] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0038] Figure 1A schematic top view of a prior art optical disc library is shown;

[0039] Figure 2 A schematic structural diagram of a prior art optical disc library (part of the housing and part of the disc bin are hidden);

[0040] Figure 3 A schematic structural diagram of an optical disc library according to an embodiment of the present invention is shown;

[0041] Figure 4 A schematic top view of an optical disc library according to an embodiment of the present invention is shown;

[0042] Figure 5 Another schematic top view of an optical disc library according to an embodiment of the present invention is shown;

[0043] Figure 6 Another schematic top view of an optical disc library according to an embodiment of the present invention is shown;

[0044] Figure 7 Another schematic top view of an optical disc library according to an embodiment of the present invention is shown;

[0045] Figure 8 A schematic flow chart of a control method for an optical disc library according to an embodiment of the present invention is shown;

[0046] In the figure: 1-manipulator, 11-transverse guide rail, 12-longitudinal guide rail, 13-lifting guide rail, 2-disc tray, 3-disc magazine, 4-disc magazine rack, 41-first disc magazine rack, 42-second disc magazine rack, 43-third disc magazine rack, 44-fourth disc magazine rack, 45-fifth disc magazine rack, 46-sixth disc magazine rack, 5-manipulator corridor, 6-shell, DETAILED DESCRIPTION

[0047] In the prior art, a standard cabinet can accommodate two disk magazine racks 4 and one robot corridor 5, wherein the required width of the robot corridor 5 is greater than the width of one disk magazine rack 4 and less than the width of two disk magazine racks 4. However, there is still extra space in the width direction of the existing standard cabinet, but this extra space cannot accommodate another disk magazine rack 4, so there is a certain amount of space waste. In this case, the present application proposes the following solution:

[0048] Embodiment 1:

[0049] Figure 3 A schematic structural diagram of an optical disc library according to an embodiment of the present invention is shown. Figure 4 FIG. 2 shows a schematic top view of an optical disk library according to an embodiment of the present invention. Figure 3 and Figure 4As shown, the optical disk library includes a shell 6, a plurality of disk magazine racks, and a manipulator 1. The width dimension of the shell 6 is the sum of the width dimensions of two standard cabinets, the depth dimension of the shell 6 is the depth dimension of a standard cabinet, and the height dimension of the shell 6 is the height dimension of a standard cabinet. A plurality of disk magazine racks 4 are arranged in the shell 6 along the width direction of the shell 6, and the disk magazine racks 4 are configured to be dynamically movable along the width direction of the shell 6, so that effective space can be left between every two adjacent disk magazine racks 4 arranged face to face to form a manipulator corridor 5. The manipulator 1 is configured to be controlled to move along the width direction, depth direction, and height direction to allow the manipulator 1 to move to a specified position of any manipulator corridor 5.

[0050] Figure 3 A schematic three-dimensional diagram of an optical disk library according to an embodiment of the present invention is shown. Figure 3 In the illustrated embodiment, the optical disc library has a width of two standard cabinets and can accommodate six disc magazine racks 4 and a robot corridor 5. Obviously, compared with the prior art in which two standard cabinets can only accommodate four disc magazine racks 4, the number of optical discs that the optical disc library can accommodate is significantly more than what two disc magazine racks 4 can accommodate.

[0051] See also Figure 2 The structure of the disk magazine rack 4 is consistent with that of the disk magazine rack 4 in the prior art. Each disk magazine rack 4 is provided with a plurality of disk magazines 3 stacked along its height direction. Each disk magazine 3 is arranged with a plurality of rows and layers of stacked disk boxes. The tray of each disk box can be operated by the robot 1 to be pulled out along the front opening direction of the disk magazine.

[0052] See also Figure 3 The manipulator 1 includes a transverse guide rail 11, a longitudinal guide rail 12 and a lifting guide rail 13. The transverse guide rail 11 allows the manipulator 1 to move along the width direction of the shell 6. The longitudinal guide rail 12 allows the manipulator 1 to move along the depth direction of the shell 6. The lifting guide rail 13 allows the manipulator 1 to move along the height direction of the shell 6. It is defined that the height direction of the disk magazine rack 4 has a top and a bottom, the depth direction of the disk magazine rack 4 has a front and a back, and the width direction of the disk magazine rack 4 has a left and a right. Similarly, the top, bottom, front, back, left and right sides of the shell 6 are defined.

[0053] The height of the magazine rack 4 is lower than the height of the shell 6, so that a space for the robot 1 to move is allowed between the top of the magazine rack 4 and the top of the shell 6, and a predetermined space for the robot 1 to move is left between the back of the magazine rack 4 and the back of the shell 6, wherein the back of the magazine rack 4 is the end of the magazine rack 4 in the depth direction. The robot 1 can be controlled to move in the height direction to the space between the top of the magazine rack 4 and the top of the shell 6, then move in the depth direction to the predetermined space, and finally move in the width direction to the target position corresponding to the designated optical disc, so that the robot 1 can cross from one robot corridor 5 to another robot corridor 5.

[0054] See also Figures 4 to 7 The optical disk library includes six magazine racks 4, which are the first magazine rack 41, the second magazine rack 42, the third magazine rack 43, the fourth magazine rack 44, the fifth magazine rack 45 and the sixth magazine rack 46 from left to right. The first magazine rack 41 is fixed on the left side of the housing 6 in the figure, and the sixth magazine rack 46 is fixed on the right side of the housing 6. The front opening directions of the magazines in the first magazine rack 41 and the sixth magazine rack 46 are both facing the center of the housing 6. The front opening of the second magazine rack 42 faces the first magazine rack 41, so that the first magazine rack 41 and the second magazine rack 42 form a face-to-face arrangement structure. The front opening of the third magazine rack 43 faces the fourth magazine rack 44, and the front opening of the fourth magazine rack 44 faces the third magazine rack 43, so that the third magazine rack 43 and the fourth magazine rack 44 form a face-to-face arrangement structure. The front opening of the fifth magazine rack 45 faces the sixth magazine rack 46, so that the fifth magazine rack 45 and the sixth magazine rack 46 form a face-to-face arrangement structure. That is, in the face-to-face arrangement structure, the front openings of the two magazine racks face each other. Therefore, the six magazine racks form three face-to-face magazine groups, namely, the first face-to-face magazine group formed by the first magazine rack 41 and the second magazine rack 42, the second face-to-face magazine group formed by the third magazine rack 43 and the fourth magazine rack 44, and the third face-to-face magazine group formed by the fifth magazine rack 45 and the sixth magazine rack 46.

[0055] Among them, the second magazine rack 42 and the third magazine rack 43 form a back-to-back arrangement structure that is close to each other and cannot be separated, and the fourth magazine rack 44 and the fifth magazine rack 45 form a back-to-back arrangement structure that is close to each other and cannot be separated. Therefore, the six magazine racks form two groups of back-to-back magazine racks, namely, the second magazine rack 42 and the third magazine rack 43 together form a first back-to-back magazine rack group, and the fourth magazine rack 44 and the fifth magazine rack 45 form a second back-to-back magazine rack group. Any group of back-to-back magazine rack groups is configured to be operably moved along the width direction of the housing 6.

[0056] When the first back-to-back magazine rack group moves toward the right side in the figure along the width direction, that is, when it moves toward the direction close to the sixth magazine rack 46, it can dynamically make an effective space between the two magazine racks in the first face-to-face magazine rack group, thereby forming a robot corridor 5. When the first back-to-back magazine rack group moves toward the left side in the figure along the width direction, that is, when it moves toward the direction close to the first magazine rack 41, it can dynamically make an effective space between the two magazine racks in the second face-to-face magazine rack group, thereby forming a robot corridor 5.

[0057] When the second back-to-back magazine rack group moves to the right in the figure along the width direction, an effective space can be dynamically made available between the two magazine racks in the second face-to-face magazine rack group, thereby forming a robot corridor 5. When the second back-to-back magazine rack group moves to the left in the figure along the width direction, an effective space can be dynamically made available between the two magazine racks in the third face-to-face magazine rack group, thereby forming a robot corridor 5.

[0058] Among them, only one robot corridor 5 is formed at the same time.

[0059] The robot 1 can cross from any robot corridor 5 to any other robot corridor 5, such as Figures 4 to 7 As shown, the robot 1 crosses from the robot corridor 5 between the first disk magazine rack 41 and the second disk magazine rack 42 to the robot corridor 5 between the third disk magazine rack 43 and the fourth disk magazine rack 44: the robot 1 first moves from the robot corridor 5 between the first disk magazine rack 41 and the second disk magazine rack 42 along the height direction to the space between the top of the disk magazine rack and the top of the shell 6, then moves along the depth direction to the predetermined space between the back of the disk magazine rack and the back of the shell 6, and finally moves along the width direction to the target position corresponding to the designated optical disk, thereby completing the purpose of crossing from one robot corridor 5 to another robot corridor 5. The purpose of crossing from any robot corridor 5 to any other robot corridor 5 can be achieved according to actual needs.

[0060] When the robot 1 receives a control instruction to cross from one robot corridor 5 to another robot corridor 5, when the robot 1 leaves the original robot corridor 5, after leaving the original robot corridor 5, the purpose of giving way to another robot corridor 5 can be achieved by moving the back-to-back tray shelf group. After giving way to the other robot corridor 5, the robot 1 continues to move until it moves to the other robot corridor 5. That is to say, the back-to-back tray shelf group is movable.

[0061] Compared with the solution in the prior art that a standard cabinet can only accommodate two rows of disk magazine racks and a manipulator corridor 5 located between the two rows of disk magazine racks, in the present application, by making the manipulator corridor 5 dynamically movable, the disk magazine racks of the optical disk library with multiple standard cabinet widths can share one manipulator corridor 5, and the more the number of disk magazine racks arranged in a row, the higher the number of effective optical disks per unit cabinet width of the optical disk library can be. The unit cabinet width refers to the width of a standard cabinet.

[0062] Furthermore, by moving the back-to-back disk magazine rack groups, effective space is made between the two disk magazine racks in the face-to-face disk magazine rack groups, forming a robot corridor 5. Moreover, in the present application, only one robot corridor 5 is formed at the same time. When the robot corridor 5 is formed, two disk magazine racks in one group of face-to-face disk magazine rack groups must be close together, and two disk magazine racks in another group of face-to-face disk magazine rack groups must be separated or opened. In other words, multiple disk magazine racks share one robot 1, and a robot corridor 5 can be dynamically formed at the same time, so that more effective space can be generated to accommodate more disk magazine racks. In other words, two relationships are formed between the disk magazine racks, close together to make effective space for other optical disc racks, or open to form a robot corridor 5.

[0063] Therefore, in the embodiment of the present invention, by closing the manipulator corridor 5 that has no operation requirement temporarily, more magazine racks can be put in under the given chassis width limitation. By moving the corresponding magazine racks, the manipulator corridor 5 required for operation can be dynamically created for the manipulator 1.

[0064] Accordingly, if Figure 8 As shown, the present invention also provides a control method for the above optical disk library, which comprises:

[0065] Step S100, controlling the robot arm of the optical disk library to move along the height direction of the housing of the optical disk library to rise to the top of the optical disk library, and to move along the depth direction of the housing to the back of the optical disk library;

[0066] Step S200, controlling a plurality of back-to-back magazine rack groups to move along the width direction of the housing, so that two facing magazine racks of the original robot corridor are brought together, and another designated group of two facing magazine racks are separated to form another robot corridor;

[0067] Step S300, controlling the manipulator to move along the width direction of the shell to a newly formed manipulator corridor position;

[0068] Step S400, controlling the robot to move along the depth direction and height direction of the housing to a designated disk box position in a designated disk bin;

[0069] Step S500, the control method is used to control the movement of the robot and the disk magazine rack to achieve the purpose of any robot corridor crossing to any other dynamically formed robot corridor.

[0070] Embodiment 2:

[0071] The difference between the second embodiment and the first embodiment is that the width dimension of the optical disk library is the sum of the width dimensions of three standard cabinets. In this case, the optical disk library can accommodate eight disk magazine racks, which is significantly more than the number of optical disks that can be accommodated by two disk magazine racks, compared with the prior art in which three standard cabinets can only accommodate six disk magazine racks.

[0072] Accordingly, the optical disk library includes eight magazine racks, which are the first magazine rack, the second magazine rack, the third magazine rack, ..., the 2N-3rd magazine rack, the 2N-2nd magazine rack, the 2N-1st magazine rack and the 2Nth magazine rack from left to right, wherein N=4.

[0073] The first bin rack and the second bin rack form a first face-to-face bin rack group, the third bin rack and the fourth bin rack form a second face-to-face bin rack group, ..., the 2N-3 bin rack and the 2N-2 bin rack form an N-1 face-to-face bin rack group, the 2N-1 bin rack and the 2N bin rack form an N face-to-face bin rack group. A face-to-face arrangement structure is formed between the two bin racks in each face-to-face bin group.

[0074] The second and third magazine racks form a first back-to-back magazine rack group, the fourth and fifth magazine racks form a second back-to-back magazine rack group, ..., the 2N-2nd and 2N-1st magazine racks form an N-1st back-to-back magazine rack group. The two magazine racks in each back-to-back magazine rack group form a back-to-back arrangement structure that is closely attached to each other and cannot be separated, and can be operated to move along the width direction of the housing.

[0075] When the i-th back-to-back magazine rack group moves along the width direction of the shell toward the 2N-th magazine rack, an effective space is dynamically left between two magazine racks in the i-th face-to-face magazine rack group to form a robot corridor, wherein i≥1;

[0076] When the i-th back-to-back magazine rack group moves along the width direction of the shell toward the first magazine rack, effective space is dynamically made available between two magazine racks in the i+1-th face-to-face magazine rack group to form a robot corridor, where i≥1.

[0077] In other embodiments, the width dimension of the optical disk library is the sum of width dimensions of three, four or more standard cabinets, and N may be 5, 6 or other larger positive integers.

[0078] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. An optical disk library, characterized in that: include: A shell, the width of which is the sum of the widths of at least two standard cabinets, the depth of which is the depth of one of the standard cabinets, and the height of which is the height of one of the standard cabinets; A plurality of magazine racks are arranged in the shell along the width direction of the shell, and the magazine racks are configured to be controlled to move along the width direction of the shell so that effective space can be left between every two adjacent magazine racks that are arranged face to face to form a robot corridor; A manipulator, configured to be controlled to move along the width direction, the depth direction and the height direction, so as to allow the manipulator to move to a designated position of any manipulator corridor; The first disk magazine rack and the 2Nth disk magazine rack located at both ends of the shell in the width direction are fixed to both ends of the shell, and the front opening directions of the disk magazines in the first disk magazine rack and the 2Nth disk magazine rack are both toward the center of the shell, wherein N ≥ 1 and is a positive integer; The front opening of the disk magazine in the second disk magazine rack adjacent to the first disk magazine rack faces the first disk magazine rack, so that the first disk magazine rack and the second disk magazine rack form a face-to-face arrangement structure; The front opening of the magazine in the 2N-1 magazine shelf adjacent to the 2N magazine shelf faces the 2N magazine shelf, so that the 2N magazine shelf and the 2N-1 magazine shelf form a face-to-face arrangement structure.

2. The optical disk library according to claim 1, characterized in that: Each of the disk bin racks is provided with a plurality of disk bins stacked along its height direction, and a plurality of columns and layers of stacked disk boxes are arranged in each of the disk bins. The tray of each of the disk boxes can be operably pulled out by the robot along the front opening direction of the disk bin.

3. The optical disk library according to claim 1, characterized in that: The magazine racks include the first magazine rack, the second magazine rack, the third magazine rack, the fourth magazine rack, ..., the 2N-3rd magazine rack, the 2N-2nd magazine rack, the 2N-1st magazine rack and the 2Nth magazine rack, which are sequentially arranged along the width direction of the housing; The first magazine rack and the second magazine rack form a first face-to-face magazine rack group, the third magazine rack and the fourth magazine rack form a second face-to-face magazine rack group, ..., the 2N-3 magazine rack and the 2N-2 magazine rack form an N-1 face-to-face magazine rack group, the 2N-1 magazine rack and the 2N magazine rack form an N face-to-face magazine rack group; A face-to-face arrangement structure is formed between the two bin racks of each face-to-face bin group.

4. The optical disk library according to claim 3, characterized in that: The second disk magazine rack and the third disk magazine rack form a back-to-back arrangement structure that is closely attached to each other and cannot be separated, and can be operably moved along the width direction of the shell to make room for effective space between the first disk magazine rack and the second disk magazine rack, thereby forming the robot corridor.

5. The optical disk library according to claim 4, characterized in that: The second disk magazine rack and the third disk magazine rack form a first back-to-back disk magazine rack group, the fourth disk magazine rack and the fifth disk magazine rack form a second back-to-back disk magazine rack group, ..., the 2N-2 disk magazine rack and the 2N-1 disk magazine rack form an N-1th back-to-back disk magazine rack group; A back-to-back arrangement structure is formed between the two disk magazine racks of each group of back-to-back disk magazine racks, and any group of the back-to-back disk magazine racks is configured to be operably movable along the width direction of the housing; When the i-th back-to-back magazine rack group moves along the width direction of the shell toward the 2N-th magazine rack, effective space is dynamically made available between two magazine racks in the i-th face-to-face magazine rack group to form the robot corridor, wherein i≥1.

6. The optical disk library according to claim 5, characterized in that: When the i-th back-to-back magazine rack group moves along the width direction of the shell toward the first magazine rack, effective space is dynamically made available between two magazine racks in the i+1-th face-to-face magazine rack group to form the robot corridor, where i≥1.

7. The optical disk library according to claim 6, characterized in that: Only one robot corridor is formed at a time.

8. The optical disk library according to claim 1, characterized in that: The manipulator comprises: a transverse guide rail, allowing the manipulator to move along the width direction of the housing; a longitudinal guide rail, allowing the manipulator to move along the depth direction of the housing; The lifting guide rail allows the manipulator to move along the height direction of the shell.

9. The optical disk library according to claim 8, characterized in that: A predetermined space is reserved at the top of the shell in the height direction, between the end of the disk magazine rack in the depth direction and the back of the shell, to allow the manipulator to be controlled to move to the top along the height direction, move to the predetermined space along the depth direction, and then move along the width direction, so as to enable the manipulator to cross from one manipulator corridor to another.

10. A control method for an optical disk library according to any one of claims 1 to 9, characterized in that: The following steps are included in sequence: Controlling the mechanical arm of the optical disc library to move along the height direction of the housing of the optical disc library to rise to the top of the optical disc library, and to move along the depth direction of the housing to the back of the optical disc library; Controlling a plurality of back-to-back magazine rack groups to move along the width direction of the housing so that two facing magazine racks of the original robot corridor come together, and separating another designated group of two facing magazine racks to form another robot corridor; Controlling the manipulator to move along the width direction of the shell to a newly formed manipulator corridor position; The robot is controlled to move along the depth direction and the height direction of the shell to a designated disk box position in a designated disk bin.

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