CN104021803B - Library's CD intelligent access device - Google Patents

Abstract

The invention relates to an intelligent CD access device for a library, which comprises a master station layer, a slave station layer communicated with the master station layer, and a CD access control layer connected with the slave station layer circuit; Described master station layer is provided with master station PC, and the database that is connected with described master station PC; Described slave station layer is provided with some single-chip microcomputer systems, each described single-chip microcomputer system and described The master station PC is connected through the bus; the optical disc access control layer includes several optical disc storage cabinets, and each of the optical disc storage cabinets is respectively connected with each single-chip microcomputer system through a circuit. The invention makes the CD storage in the library rational and easy to manage and maintain, can reduce the workload of administrators, is convenient and reliable, and has strong feasibility.

Description

Library disc intelligent access device

technical field

The invention relates to an optical disc access device, in particular to an optical disc intelligent access device used in a school library.

Background technique

With the continuous development of science and technology, more and more books in the school library are equipped with CDs for students to learn and refer to. However, with the increasing number of CDs in the library, effective management of them has become a problem that must be solved. Due to the gradual increase in the number of CDs in the library, when students need to borrow CD-ROM materials corresponding to a certain reference book, because there is no professional CD-ROM quick access device, it takes time and effort for the administrator to find CD-ROMs, and a lot of manpower and material resources are wasted. Slowed down the overall borrowing speed of the library.

Contents of the invention

The object of the present invention is to provide an intelligent access device for optical discs in libraries, which can rationalize the storage of optical discs in libraries and is easy to manage and maintain, can reduce the workload of administrators, is convenient, reliable and highly feasible.

In order to achieve the above object, the present invention provides an intelligent access device for optical discs in libraries, which includes a master station layer, a slave station layer communicated with the master station layer, and an optical disc connected to the slave station layer circuit Access control layer; the master station layer is provided with master station PC (PersonalComputer, personal computer), and the database connected with the described master station PC; the described slave station layer is provided with some single-chip microcomputer systems, Each of the single-chip microcomputer systems is connected to the master station PC through a bus; the optical disc access control layer includes a number of optical disc storage cabinets, and each of the optical disc storage cabinets is respectively connected to each single-chip microcomputer system through a circuit .

RS232 or RS485 master-slave communication is used for communication between each of the single-chip microcomputer systems and the master station PC.

The optical disc storage cabinet includes: several drawer compartments, and drawers corresponding to each of the drawer compartments.

The drawer box includes: first slide rails respectively arranged on the inner side walls of both sides of the drawer box; a stepper motor fixedly arranged in the middle of the bottom plate of the drawer box, and the stepper motor is provided with a gear , the stepping motor is connected to the corresponding single-chip microcomputer system through a circuit; the proximity switch is arranged on one side wall of the drawer, and the setting height of the proximity switch is located between the stepping motor and the first slide rail Between, the proximity switch is connected with the corresponding single-chip microcomputer system through a circuit.

The drawer includes: a disc placement plate, which is arranged in the drawer; a gear-type guide rail, which is arranged under the disc placement plate, and meshes with the gear of the stepping motor; the second Slide rails, which are respectively arranged on the two side walls of the drawer, and each second slide rail is respectively matched with the first slide rail, so that the drawer can be connected from the drawer through the first slide rail and the second slide rail. drawn out from the grid; two through holes are respectively provided at both ends of one side wall of the drawer, and are located at the same height as the proximity switch, and the side wall of the drawer provided with the through holes is set The side walls of the drawer compartments with proximity switches are located on the same side.

The opening area of the through hole is larger than the probe area of the proximity switch.

The guide rail is made of iron or stainless steel.

The drawer also includes a handle, which is arranged on the front panel of the drawer.

The disc placement plate includes: several disc partitions, which are evenly spaced on the disc placement plate, and disc placement holes for placing discs are formed between two adjacent disc partitions; several indicator lights, each The indicator lights are correspondingly arranged in each disc placement hole, and the indicator lights are connected with the corresponding single-chip microcomputer system through a circuit.

The library optical disc intelligent access device provided by the present invention stores each optical disc in a specific location, and establishes specific storage location data through the database. The barcode information inquires the specific storage location information of the CD in the database, and sends the storage location information to the corresponding single-chip microcomputer system, which controls the stepping motor, indicator light and Close the switch and other components, open the drawer and quickly find the CD storage location. The invention makes the CD storage in the library rational and easy to manage and maintain, can reduce the workload of administrators, is convenient and reliable, and has strong feasibility.

Description of drawings

Fig. 1 is the control structural diagram of library CD intelligent access device among the present invention;

Fig. 2 is the structural representation of the optical disc storage cabinet among the present invention;

Fig. 3 is a schematic diagram of the front structure of the drawer grid in the present invention;

Fig. 4 is a schematic diagram of the side structure of the drawer grid in the present invention;

Fig. 5 is a schematic diagram of the front structure of the drawer in the present invention;

Fig. 6 is a top view structural schematic diagram of the drawer in the present invention;

Fig. 7 is a schematic diagram of the side structure of the drawer in the present invention.

detailed description

A preferred embodiment of the present invention will be described in detail below with reference to FIG. 1 to FIG. 7 .

As shown in Figure 1, it is the overall control structural diagram of the optical disc intelligent access device provided by the present invention, which includes a master station layer 1, a slave station layer 2 connected with the master station layer 1, and a The optical disc access control layer 3 connected to the slave station layer 2; the master station layer 1 is provided with a master station PC11, and a database 12 connected to the master station PC11; the slave station Layer 2 is provided with several single-chip microcomputer systems 21, each of said single-chip microcomputer systems 21 is connected to said master station PC11 through a bus, and adopts RS232 or RS485 master-slave communication mode to communicate; said optical disc access control layer 3 Contains a number of optical disc storage cabinets 4, and each of the optical disc storage cabinets 4 is respectively connected to each single-chip microcomputer system 21 through a circuit.

As shown in Fig. 2, described CD storage cabinet 4 comprises: several drawer compartments 41, and drawers 42 correspondingly arranged in each described drawer compartment 41 respectively; As shown in Fig. 3 and Fig. 4, described The drawer grid 41 includes: the first slide rails 411 respectively arranged on the inner side walls of both sides of the drawer grid 41, the stepper motor 31 fixedly arranged in the middle of the bottom plate of the drawer grid 41, and the Proximity switch 33 on wherein one side wall; Wherein, described stepping motor 31 is provided with gear, and this stepping motor 31 is connected with corresponding single-chip microcomputer system 21 by circuit; As shown in Figure 4, described approaching The installation height of the switch 33 is located between the stepper motor 31 and the first slide rail 411 , and the proximity switch is connected with the corresponding single-chip microcomputer system 21 through a circuit.

As shown in Figures 5 and 7, the drawer 42 includes: a disc placement plate 421, which is arranged in the drawer 42; a gear-type guide rail 424, which is arranged under the disc placement plate 421, and Engaged with the gear of the stepping motor 31, the guide rail 424 is made of a material with certain hardness and strength such as iron or stainless steel; the second slide rail 423 is respectively arranged on both sides of the drawer 42 On the outer side wall, each second slide rail 423 is matched with the first slide rail 411 respectively, so that the drawer 42 can be drawn out from the drawer grid 41 through the first slide rail 411 and the second slide rail 423; Holes 425 are respectively arranged at both ends of one side wall of the drawer 42, and are located at the same height as the proximity switch 33, and the opening area of the through hole 425 is larger than the probe area of the proximity switch 33, The side wall of the drawer 42 provided with the through hole 425 is located on the same side as the side wall of the drawer grid 41 provided with the proximity switch 33, and the proximity switch 33 is used to detect the distance between it and the two through holes 425 distance, so as to monitor the distance that the drawer 42 is pulled out or closed; the handle 422 is arranged on the front panel of the drawer 42 .

As shown in Figure 6, the disc placement plate 421 includes: a number of disc spacers 4212, which are evenly spaced on the disc placement plate 421, and a disc space can be placed between two adjacent disc spacers 4212. The disc placement hole 4211; several indicator lights 32, each indicator light 32 is correspondingly arranged in each disc placement hole 4211, that is, one indicator light corresponds to indicate the position of a disc, and the said indicator light 32 and the corresponding single-chip microcomputer system 21 pass through circuit connection.

The library optical disc intelligent access device provided by the present invention queries the specific information and storage location of the optical disc through the master station layer 1, and controls the optical disc access control layer 3 by the slave station layer 2 to automatically access the optical disc. Its specific working principle And the working process is described below. Enter the relevant information of each CD in the database 12 in advance, including the name of the CD, the title of the book supporting it, and the barcode of the CD, etc., and correspondingly establish the storage location information of the CD, including which CD storage cabinet 4 the CD is specifically stored in , which drawer 42 is located in the optical disc storage cabinet 4, and finally inquires which optical disc placement hole 4211 the optical disc is located in the drawer 42. When a student in the library borrowed or returned the CD, the administrator used the CD information to inquire about the specific storage location of the CD in the database 12 through the master station PC11 in the master station floor 1, according to the location of the CD storage cabinet 4 inquired. location, the master station PC11 transmits the inquired specific storage location information of the optical disc to the corresponding single-chip microcomputer system 21 in the slave station layer 2 through RS485 or RS232.

When the corresponding single-chip microcomputer system 21 in the station floor 2 receives the relevant optical disc storage position information, it controls the corresponding stepping motor 31 to start according to the received position information of the specific drawer 42, and the stepping motor 31 drives its The gear rotates, and during the rotation, the drawer 42 is pulled out from the drawer grid 41 through engagement with the gear guide rail 424 , thereby opening the drawer 42 where the optical disc is located. At this time, the single-chip microcomputer system 21 controls the indicator light 32 arranged in the optical disc placement hole 4211 to turn on according to the received position information of the specific disc placement hole 4211, so that the librarian can easily find the optical disc according to the indicator light 32 storage location, and remove or replace it. During this process, the proximity switch 33 calculates the sliding distance required for the drawer 42 to be pulled out according to the distance between the proximity switch 33 and the two through holes 425, and according to the position information of the specific disc placement hole 4211, and is specifically controlled by the single-chip microcomputer system 21. The rotation time and number of rotations of the stepper motor 31 make the drawer 42 drawn out and opened to an appropriate distance.

After the disc access is completed, the administrator sends a completion signal to the corresponding single-chip microcomputer system 21 through the master station PC11 in the master station layer 1, so that the single-chip microcomputer system 21 controls the indicator light 32 in the corresponding disc placement hole 4211 to turn off, and controls the corresponding The stepper motor 31 starts, and the drawer 42 is closed by the meshing of its gear and the geared guide rail 424. During this process, the proximity switch 33 calculates the distance required to slide when the drawer 42 is closed according to the distance between the proximity switch 33 and the two through holes 425, and specifically controls the rotation time and rotation circle of the stepping motor 31 through the single-chip microcomputer system 21. number, so that the drawer 42 is fully closed.

The library optical disk intelligent access device provided by the invention makes the storage of optical disks in the library rational and easy to manage and maintain, can reduce the workload of administrators, is convenient and reliable, and has strong feasibility.

Although the content of the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as limiting the present invention. Various modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the above disclosure. Therefore, the protection scope of the present invention should be defined by the appended claims.

Claims (7)

1. A library optical disc intelligent access device, characterized in that it comprises: a master station layer (1), a slave station layer (2) connected to the master station layer (1), and a disc access control layer (3) connected to the circuit from the station layer (2); The master station layer (1) is provided with a master station PC (11), and a database (12) connected to the master station PC (11); The slave station layer (2) is provided with several single-chip microcomputer systems (21), and each of the single-chip microcomputer systems (21) is connected to the master station PC (11) through a bus; The optical disc access control layer (3) includes a plurality of optical disc storage cabinets (4), and each of the optical disc storage cabinets (4) is respectively connected to each single-chip microcomputer system (21) through a circuit; Wherein, the optical disc storage cabinet (4) includes: several drawer compartments (41), and drawers (42) correspondingly arranged in each of the drawer compartments (41); Described drawer lattice (41) comprises: The first slide rails (411), which are respectively arranged on the inner side walls of both sides of the drawer (41); A stepping motor (31), which is fixedly arranged in the middle of the bottom plate of the drawer (41); the stepping motor (31) is provided with a gear, which is connected to the corresponding single-chip microcomputer system (21) through a circuit; Proximity switch (33), which is set on one side wall of the drawer (41); the setting height of the proximity switch (33) is between the stepper motor (31) and the first slide rail (411), which is connected with the corresponding single-chip microcomputer system (21) through a circuit. 2. The library optical disc intelligent access device according to claim 1, characterized in that, each said single-chip microcomputer system (21) and said master station PC (11) adopt RS232 or RS485 master-slave Communication mode for communication. 3. The library optical disc intelligent access device according to claim 1, characterized in that, the drawer (42) includes: A disc placement plate (421), which is arranged in the drawer (42); A gear-type guide rail (424), which is arranged under the disc placement plate (421) and meshes with the gear of the stepping motor (31); The second slide rails (423) are respectively arranged on the two side outer walls of the drawer (42), and each second slide rail (423) is respectively matched with the first slide rail (411), The drawer (42) is pulled out from the drawer grid (41) through the first slide rail (411) and the second slide rail (423); Two through holes (425), which are respectively provided at both ends of one of the side walls of the drawer (42), and are located at the same height as the proximity switch (33), are provided with through holes (425) The side wall of the drawer (42) is located on the same side as the side wall of the drawer grid (41) provided with the proximity switch (33). 4. The intelligent CD access device for libraries according to claim 3, characterized in that the opening area of the through hole (425) is larger than the probe area of the proximity switch (33). 5. The intelligent CD access device for libraries according to claim 3, characterized in that, the guide rail (424) is made of iron or stainless steel. 6. The intelligent CD access device for libraries according to claim 3, characterized in that, the drawer (42) further comprises a handle (422), which is arranged on the front panel of the drawer (42). 7. The library optical disc intelligent access device according to claim 3, characterized in that, said optical disc placement plate (421) comprises: A plurality of disc spacers (4212) are evenly spaced on the disc placement plate (421), and disc placement holes (4211) for placing discs are formed between two adjacent disc spacers (4212); A plurality of indicator lights (32), each indicator light (32) is correspondingly arranged in each disc placement hole (4211), and the indicator lights (32) are connected with the corresponding single-chip microcomputer system (21) through a circuit.