Library gate machine integrated with book lending and returning function and method of use thereof

Abstract

The application discloses a library passage machine integrated with book lending and returning functions and a use method thereof. The passage machine comprises a gate blocking baffle, a book lending and returning function box, a book identification module, a face recognition and operation module, and sensors arranged on both sides of the passage. The book lending and returning function box is provided with a book inlet, and is internally provided with an upper slide plate, an L-shaped structure baffle, an electric control rotating structure, a lower slide plate, a book outlet and a book falling box. The L-shaped structure baffle is provided with an electric control blocking structure comprising two electric control baffles and corresponding openings. After the book enters the book lending and returning function box, the book slides along the upper slide plate and is blocked at an identification position. When the identification is normal and the reader confirms the lending and returning, the book is guided to enter the book falling box on the opposite side through the lower slide plate. When the identification is abnormal, the borrowing information is abnormal, the confirmation time is exceeded or the lending and returning is cancelled, the book falls back to the book falling box on the reader side. The passage management and the book lending and returning functions are integrated in the same device, the lending and returning process can be simplified, and the passage efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of library self-service borrowing and returning equipment and electronic access control gates, specifically to a library access control machine that integrates book borrowing and returning functions and its usage method. Background Technology

[0002] With the rapid development of smart library construction, self-service book lending and returning equipment and electronic access control systems have become important infrastructure for libraries to improve service efficiency and achieve intelligent management. Existing libraries typically install access control gates or turnstiles at entrances and exits to identify readers, verify permissions, and manage access. They also separately install self-service lending and returning equipment inside the library for borrowing, returning, registering information, and updating status. While this independent deployment model can achieve access control and book lending and returning management separately, the two are structurally and functionally separated, failing to form an integrated collaborative processing mechanism. Readers still need to switch between the turnstiles and the lending and returning equipment when entering and exiting the library, which is insufficient to meet the requirements of smart libraries for efficient service and optimized workflow.

[0003] Analysis reveals several shortcomings in existing technologies. Firstly, from the reader's perspective, borrowing and returning books typically involves repetitive steps such as "entry verification – borrowing / returning operation – exit verification" or "entry / exit verification – access to self-service borrowing / returning equipment – ​​re-verification through access control." These numerous steps negatively impact efficiency and the borrowing experience, hindering rapid borrowing and returning. Secondly, from a library management perspective, traditional self-service borrowing / returning equipment usually requires dedicated space, increasing equipment investment and maintenance costs. It also affects functional zoning, traffic flow planning, and the overall layout of the library, making it difficult to achieve a good balance between collection security, convenient borrowing / returning, and handling of anomalies. Furthermore, existing libraries often employ multiple book management solutions, including magnetic stripe recognition, RFID, and visual recognition. Traditional equipment has limited compatibility with different technological scenarios, making it difficult to meet the actual needs of upgrading older libraries and operating multiple systems in parallel. Therefore, there is an urgent need to propose a technical solution that can integrate access management with book borrowing and returning functions, while taking into account access efficiency, book theft prevention, space utilization, and compatibility with multiple identification schemes. Summary of the Invention

[0004] To address the aforementioned deficiencies in existing technologies, this invention provides a library access control system that integrates book borrowing and returning functions, along with its usage method. This system integrates access control and book borrowing / returning functions into a single device, allowing readers to complete book borrowing and returning operations simultaneously with identity verification, thereby simplifying the borrowing and returning process and improving library operational efficiency.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: A library access control system integrating book borrowing and returning functions includes: a turnstile barrier, disposed in the access area, for controlling reader passage; a book borrowing and returning function box, disposed on one side of the turnstile barrier, the book borrowing and returning function box having a book inlet, and internally having an upper slide plate, an L-shaped baffle, an electrically controlled rotating structure, a lower slide plate, a book outlet, and a book drop box; wherein the book inlet, upper slide plate, lower slide plate, book outlet, and book drop box are correspondingly disposed on both sides of the book borrowing and returning function box; a book recognition module, disposed in the book borrowing and returning function box, for recognizing books inserted into the book borrowing and returning function box; a face recognition and operation module, disposed on the upper part of the book borrowing and returning function box, for collecting and verifying reader identity information and providing book borrowing and returning confirmation operation; sensors, disposed on both sides of the access area, for detecting whether readers are carrying books; wherein the L-shaped baffle is composed of two baffles disposed at an angle, wherein... The unit is equipped with the aforementioned electrically controlled rotating structure, and the L-shaped baffle is equipped with an electrically controlled blocking structure. The electrically controlled blocking structure includes two electrically controlled baffles and openings corresponding to the two electrically controlled baffles. In the initial state, both the electrically controlled rotating structure and the electrically controlled baffles are locked. After the book enters the borrowing and returning function box through the book inlet, it slides down the upper slide plate and is blocked by the electrically controlled baffles at the recognition position. After the book recognition module completes the book recognition, if the reader confirms the borrowing or returning, the electrically controlled baffle on the book inlet side is unlocked. Under the action of the book's gravity, the electrically controlled baffle rotates to make way for the corresponding opening on the same side, allowing the book to pass through the opening on the other side, be guided by the sliding slide plate, and enter the opposite book box through the book outlet. In the event of abnormal book recognition, abnormal borrowing information, reader confirmation of timeout, or cancellation of borrowing or returning, the electrically controlled rotating structure is unlocked, and the L-shaped baffle rotates as a whole under the action of the book's gravity, causing the book to fall back into the reader's side book box.

[0006] Preferably, the book recognition module includes a wide-angle camera, which is oriented towards the book recognition location to collect image information of the book.

[0007] Preferably, the book recognition module further includes a flash, which is positioned near the wide-angle camera to provide supplemental lighting for the book during the book recognition process, thereby improving the accuracy of image recognition.

[0008] Preferably, the book identification module further includes an RFID identification device and / or a magnetic stripe identification device for identifying the RFID information and / or magnetic stripe information of books, so as to be compatible with book management using radio frequency schemes, magnetic stripe schemes and visual recognition schemes.

[0009] Preferably, the L-shaped baffle returns to its initial position by its own weight after the book falls back into the reader's side book box; or, the L-shaped baffle returns to its initial position by a return spring; the electronically controlled baffle returns to its initial position by a return spring after the book passes through the opening.

[0010] Preferably, the book borrowing and returning function box is equipped with a small fan and / or ultraviolet lamp module on the inner side near the book inlet, for dust removal and / or disinfection of the books entering the book borrowing and returning function box.

[0011] Preferably, the upper slide plate and / or the lower slide plate have a preset tilt angle, and the bearing surface that the book contacts during the sliding process is provided with damping ball bearings; the book box body has an inclined structure inside and a rubber buffer bottom surface at the bottom.

[0012] On the other hand, the present invention also discloses a method for using a library access control machine based on the above-mentioned integrated book borrowing and returning functions, characterized by comprising the following steps: S1 verifies reader permissions through facial recognition and operation modules, and uses sensors set on both sides of the aisle to detect whether the reader is carrying books; S2, if the sensor does not detect a book, the gate barrier will be opened after identity verification, allowing the reader to pass directly; if the sensor detects a book, the borrowing and returning identification mode will be entered, and the reader will be guided to insert the books one by one into the book inlet of the borrowing and returning function box. S3, after the book enters the borrowing and returning function box through the book inlet, it slides down the upper slide plate and is blocked by the electronically controlled baffle at the recognition position. The book information is obtained through the book recognition module, and the reader is prompted to confirm the borrowing and returning through the face recognition and operation module. S4. When the book is recognized normally and the reader confirms the borrowing and returning, the electronically controlled baffle on the book entry side is unlocked. Under the action of the book's gravity, the electronically controlled baffle rotates to the corresponding opening on the same side to make way, so that the book passes through the opening on the other side and is guided by the sliding slide plate, and then enters the opposite book box through the book exit. At the same time, the corresponding borrowing status or return status is synchronized to the library management system according to the reader's direction of entering and leaving the library. After the identity verification is passed, the gate barrier is opened, and the reader can take the book after passing through. S5, in the event of abnormal book recognition, abnormal borrowing information, reader confirmation timeout or cancellation of borrowing / return, the electronically controlled rotating structure is unlocked, and the L-shaped structure baffle rotates as a whole under the weight of the book, causing the book to fall back to the reader's side book box, where the reader can retrieve the book.

[0013] Preferably, in step S2, the reader is guided to insert a book through voice broadcast and / or a touch screen in the face recognition and operation module.

[0014] Preferably, when an overdue payment is detected for a book, a payment QR code is displayed on the touch screen, and the book return registration can only be completed after the payment is made.

[0015] Compared with the prior art, the advantages of the present invention are as follows: (1) This invention sets up a book borrowing and returning function box on one side of the gate barrier, and integrates an upper slide plate, an L-shaped structure baffle, an electrically controlled rotating structure, a lower slide plate, a book recognition module, and a face recognition and operation module in the book borrowing and returning function box. This allows readers to complete the book borrowing and returning operation while verifying their identity through the channel machine, thereby integrating the traditionally separately set access control verification and book borrowing and returning process into one, significantly simplifying the operation steps for readers to enter and exit the library, and improving borrowing efficiency and passage efficiency.

[0016] (2) This invention does not require separate configuration of traditional self-service borrowing and returning equipment, which can effectively save library space, optimize the functional zoning of the library and the reader's passage, and reduce equipment investment and operation and management costs. In addition, this invention is compatible with wide-angle cameras, RFID identification devices and / or magnetic strip identification devices through the book identification module, and can be adapted to multiple book management solutions such as visual recognition, radio frequency identification and magnetic strip identification at the same time. It is particularly suitable for the upgrading and renovation of old libraries and application scenarios where multiple identification methods coexist.

[0017] (3) The present invention utilizes an electrically controlled baffle and an electrically controlled rotating structure to achieve dual-path control of the book being output to the opposite side of the book box and falling back to the reader's side of the book box. This not only takes into account the convenience of borrowing and returning books and the anti-theft management of books, but also helps to improve the reliability and flexibility of the book processing process. Furthermore, the transmission and control structure of the present invention is relatively simple. The L-shaped baffle and the electrically controlled baffle can complete the action and reset by means of the book's gravity and the reset structure. It has the advantages of low failure rate, quick troubleshooting and maintenance and good energy saving effect. Therefore, it has good promotion and application value. Attached Figure Description

[0018] Figure 1 This is a front view of the library access control machine with integrated book borrowing and returning functions according to the present invention; Figure 2 This is a schematic diagram of the overall structure of the library access control machine with integrated book borrowing and returning functions according to the present invention; Figure 3 This is a schematic diagram of the overall structure of the library access control machine with integrated book borrowing and returning functions of the present invention from another angle. Figure 4 This is another schematic diagram of the overall structure of the library access control machine with integrated book borrowing and returning functions according to the present invention. Figure 5 This is a schematic diagram of the internal structure of the book borrowing and returning function box of the present invention; Figure 6This is a schematic diagram of the internal structure of the book borrowing and returning function box of the present invention from another angle; Figure 7 This is a schematic diagram of the book borrowing and returning function box of the present invention, showing the book entering the opposite side. Figure 8 This is a schematic diagram of the book borrowing and returning function box of the present invention, showing the books falling back to the same side. Figure 9 This is a flowchart illustrating the usage method of the library access control machine with integrated book borrowing and returning functions according to the present invention.

[0019] Explanation of reference numerals in the attached diagram: 1-gate barrier; 2-book borrowing and returning function box; 21-book inlet; 22-upper slide plate; 23-L-shaped structure barrier; 24-electrically controlled rotating structure; 25-lower slide plate; 26-book outlet; 27-book drop box; 28-electrically controlled barrier structure; 29-damping ball bearing; 281-electrically controlled barrier; 282-opening; 3-book recognition module; 31-wide-angle camera; 32-flash light; 4-face recognition and operation module. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the present invention.

[0021] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0022] like Figure 1-8 As shown, this embodiment discloses a library access control machine integrating book borrowing and returning functions, including: A turnstile barrier 1 is installed in the passage area to control reader access. The turnstile barrier 1 can take the form of a barrier component in an existing access control machine or turnstile. Its main function is to open the passage after identity verification and to remain blocked when identity verification fails or the device is in a pending inspection state, thereby realizing the basic management function of reader access.

[0023] The book borrowing and returning function box 2 is located on one side of the gate barrier 1. The box 2 has a book inlet 21 and internally includes an upper slide plate 22, an L-shaped baffle 23, an electrically controlled rotating structure 24, a lower slide plate 25, a book outlet 26, and a book drop box 27. The book inlet 21, upper slide plate 22, lower slide plate 25, book outlet 26, and book drop box 27 are respectively positioned on both sides of the box 2. As the main structure for book borrowing and returning, the box 2 forms a book insertion path on one side and a book output path on the other. Readers can directly insert books through the inlet 21 when approaching the gate. The books are identified, sorted, and output within the box, eliminating the need to go to a separate borrowing and returning device, thus shortening the operation path and reducing space occupation.

[0024] The book recognition module 3 is located inside the book borrowing and returning function box 2 and is used to recognize books inserted into the box 2. The book recognition module 3 is positioned near the recognition location where the book passes, and is used to acquire book information after a book is temporarily stopped, and send the recognition result to the backend system for subsequent book borrowing, returning, anomaly detection, and status synchronization processing.

[0025] The face recognition and operation module 4 is located on the upper part of the book borrowing and returning function box 2. It is used to collect and verify the reader's identity information and provide book borrowing and returning confirmation operations. The face recognition and operation module 4 is positioned within the reader's operating height range, which makes it convenient for readers to directly verify their identity and confirm borrowing and returning when they are close to the access control machine. This allows access management and borrowing and returning operations to be completed on the same device, improving the continuity and convenience of operation.

[0026] Sensors, positioned on both sides of the passageway, detect whether readers are carrying books. These sensors can be placed at detection points before readers enter the passageway to pre-determine whether they are carrying books, thus switching between a no-book passage and a book borrowing / returning identification process. This reduces unnecessary identification steps and improves equipment operating efficiency. Specifically, the sensors may include RFID sensors and magnetic strip sensors deployed on both sides of the passageway, accommodating different book management schemes, ensuring the reliability of both no-book passage and book-carrying identification processes, improving passage efficiency, and reducing errors.

[0027] The L-shaped baffle 23 consists of two baffles arranged at an angle, with an electrically controlled rotating structure 24 in the middle. An electrically controlled blocking structure 28 is also provided on the L-shaped baffle 23. The electrically controlled blocking structure 28 includes two electrically controlled baffles 281 and openings 282 corresponding to the two electrically controlled baffles 281. The L-shaped baffle 23 forms the central guide and diversion structure inside the book lending and returning function box 2. The two baffles arranged at an angle can respectively receive books sliding from different sides. The electrically controlled rotating structure 24 at its center is used to lock or unlock the L-shaped baffle 23 to rotate as a whole under specific conditions. Specifically, the electrically controlled rotating structure 24 can be locked or unlocked by using an electric stop in conjunction with a limiting structure. For example, the electrically controlled rotating structure 24 may include a rotating shaft connected to the L-shaped baffle 23 and an electric stop cooperating with the rotating shaft. In the locked state, the electric stop cooperates with the limiting structure on the L-shaped baffle 23 to restrict the L-shaped baffle 23 from rotating around the rotating shaft. In the unlocked state, the electric stop disengages from its cooperating position, and the L-shaped baffle 23 can rotate as a whole under the weight of the book, thereby causing the book to fall back into the reader's side-fall book box 27. It should be noted that the locking and unlocking methods of the electrically controlled rotating structure 24 are not limited to the above forms. As long as the overall rotation state of the L-shaped baffle 23 can be controlled, it can be applied to this invention. The electrically controlled blocking structure 28 is used to temporarily stop the book before the book recognition is completed, and when the borrowing and returning conditions are met, the electrically controlled baffle 281 rotates to allow the book to continue sliding, thereby realizing the diversion of books in different states. Similarly, the electronically controlled baffle 281 in the electronically controlled barrier structure 28 can also be controlled by an electric stop to lock or unlock, but the specific driving or locking method is not limited to the above method.

[0028] like Figure 5-8As shown, in the initial state, both the electrically controlled rotating structure 24 and the electrically controlled baffle 281 are locked. After the book enters the borrowing and returning function box 2 through the book inlet 21, it slides down the upper slide plate 22 and is blocked by the electrically controlled baffle 281 at the recognition position. After the book recognition module 3 completes the book recognition, if the reader confirms the borrowing or returning, the electrically controlled baffle 281 on the book inlet side is unlocked. Under the action of the book's gravity, the electrically controlled baffle 281 rotates to make way for the corresponding opening 282 on the same side, allowing the book to pass through the opening 282 on the other side, be guided by the sliding slide plate 25, and enter the opposite book drop box 27 through the book outlet 26. In the case of abnormal book recognition, abnormal borrowing information, reader confirmation timeout, or cancellation of borrowing or returning, the electrically controlled rotating structure 24 is unlocked, and the L-shaped structure baffle 23 rotates as a whole under the action of the book's gravity, causing the book to fall back to the reader's side book drop box 27. Through the above structure and working process, the book borrowing and returning function box 2 can realize the output of the opposite side during normal borrowing and returning and the return of the same side in abnormal situations in the same set of channel equipment. This allows readers to complete the borrowing and returning operation quickly when entering and leaving the library, and also makes it easy to immediately retrieve the books for inspection or reprocessing when abnormalities are identified or confirmation fails, thus taking into account both the convenience of borrowing and returning and the reliability of book management.

[0029] Furthermore, the book recognition module 3 includes a wide-angle camera 31, which faces the book recognition location to collect image information of the book. The wide-angle camera 31 can be positioned above the inside of the book borrowing / returning cabinet 2, allowing its shooting angle to cover the book at the recognition location from top to bottom. This enables the acquisition of image information of the book cover, spine, or other external features even when the book is blocked by the electronically controlled baffle 281, facilitating subsequent image recognition and information comparison. In addition, the book recognition module 3 also includes a flash 32, positioned near the wide-angle camera 31, to provide supplemental lighting for the book during recognition, thereby improving image recognition accuracy. The flash 32 provides stable illumination in situations with insufficient light inside the cabinet or significant reflections and shadows on the book surface, enabling the wide-angle camera 31 to obtain clearer image information and thus improving the recognition stability of the book recognition module 3 in different environments.

[0030] In addition, the book identification module 3 may also include an RFID identification device and / or a magnetic stripe identification device for identifying the RFID information and / or magnetic stripe information of books, to ensure compatibility with RFID, magnetic stripe, and visual recognition solutions for book management. The RFID identification device and / or magnetic stripe identification device can be installed inside the L-shaped baffle 23, allowing the corresponding RFID or magnetic stripe information to be read when a book is positioned at the identification location or along the guide path of the L-shaped baffle 23. This enables a combined use of image recognition, RFID, and magnetic stripe recognition, meeting the compatibility requirements of different library management systems.

[0031] Furthermore, after the book falls back to the reader's side book box 27, the L-shaped baffle 23 returns to its initial position using its own gravity; or, the L-shaped baffle 23 returns to its initial position via a return spring. When returning to its initial position using its own gravity, the center of gravity of the L-shaped baffle 23 can be offset below the rotation center, allowing it to automatically return to its initial position under its own gravity's restoring torque after rotation. Alternatively, a return spring can be used to apply a restoring force to the L-shaped baffle 23, allowing it to return to its initial standby state after completing the same-side book retraction, ready for the next book processing. The electronically controlled baffle 281 returns to its initial position via a return spring after the book passes through the opening 282. After completing the opposite-side release, the electronically controlled baffle 281 can rotate back to its blocking position under the action of the return spring, ensuring that the next book can be stably stopped at the identification position upon entry.

[0032] Furthermore, the book lending and returning cabinet 2 is equipped with a small fan and / or ultraviolet lamp module on the inner side near the book inlet 21 for dust removal and / or disinfection of books entering the cabinet. After entering the cabinet through the book inlet 21, the books pass through the area where the small fan and / or ultraviolet lamp module is located. The small fan blows away dust adhering to the book surface, reducing dust brought into the cabinet during subsequent sliding, identification, and lending / returning processes. The ultraviolet lamp module disinfects the book surface, thereby improving the hygiene management level during book circulation. The small fan and ultraviolet lamp module can be installed individually or in combination to meet the actual needs of different libraries for book cleaning and disinfection.

[0033] In this embodiment, the upper slide plate 22 and / or the lower slide plate 25 have a preset tilt angle, and the bearing surface that the book contacts during sliding is provided with damping coated balls 29, which can reduce frictional resistance and reduce sliding speed during the book's sliding process, preventing the book from rushing down quickly, bumping, or getting stuck. The book drop box 27 has an inclined structure inside and a rubber buffer bottom surface to absorb the impact when the book falls, reduce book damage, and improve the convenience for readers to retrieve the book.

[0034] like Figure 9 As shown, another embodiment of the present invention also discloses a method for using a library access control machine based on the above-described integrated book borrowing and returning function, comprising the following steps: S1 verifies reader permissions through facial recognition and operation module 4, and uses sensors located on both sides of the passage to detect whether the reader is carrying books. Facial recognition and operation module 4 can collect and verify the reader's identity when the reader approaches the passage machine. At the same time, the sensors located on both sides of the passage can pre-detect whether the reader is carrying books, so that the system can determine whether the reader is in a normal passage state or a book borrowing / returning state before entering the passage, thereby reducing irrelevant identification steps and improving passage efficiency.

[0035] S2, if the sensor does not detect a book, the gate barrier 1 opens after identity verification, allowing the reader to pass directly. If the sensor detects a book, the system enters the book borrowing / returning recognition mode and guides the reader to insert the book one by one into the book inlet 21 of the book borrowing / returning function box 2. In the state of passing without books, the access control machine only performs identity verification and access control functions. However, after detecting a book, the system can guide the reader to insert the book one by one through facial recognition and the display interface and / or voice prompts in the operation module 4, thereby avoiding recognition confusion caused by multiple books entering at the same time and improving the accuracy of book borrowing and returning processing.

[0036] S3. After the book enters the borrowing and returning function box 2 through the book inlet 21, it slides down the upper slide plate 22 and is blocked by the electronically controlled baffle 281 at the identification position. The book identification module 3 obtains the book information and prompts the reader to confirm the borrowing and returning through facial recognition and operation module 4. After the book stops at the identification position, the book identification module 3 can perform image recognition, RFID recognition and / or magnetic stripe recognition on the book and feed back the recognition results to the reader. The reader then confirms the borrowing and returning operation on the operation interface, thereby ensuring that the book information corresponds to the reader's identity.

[0037] S4, with book recognition normal and reader confirmation of borrowing / returning, the electronically controlled barrier 281 on the book entry side is unlocked. Under the weight of the book, the barrier 281 rotates to make way for the corresponding opening 282 on the same side, allowing the book to pass through the opening 282 on the other side and be guided by the sliding guide plate 25 before entering the opposite book drop box 27 through the exit port 26. Simultaneously, the borrowing or returning status is synchronized with the library management system based on the reader's entry / exit direction. After identity verification, the gate barrier 1 is opened, allowing the reader to pass and retrieve the book. In this process, the book output direction and the reader's passage direction are coordinated, enabling the reader to retrieve the borrowed / returned book on the opposite side after passing through the gate, thus achieving integrated operation of identity verification, book recognition, status synchronization, and book retrieval.

[0038] In case of abnormal book recognition, abnormal borrowing information, reader confirmation of timeout, or cancellation of borrowing / return, the electronically controlled rotating structure 24 is unlocked, and the L-shaped baffle 23 rotates under the weight of the book, causing the book to fall back to the reader's side of the book box 27 for the reader to retrieve. This process prevents abnormal books from being mistakenly sent to the opposite side, instead returning them directly to the reader's current side. This allows the reader to recheck book information, re-operate, or seek assistance from the administrator, thereby improving the reliability and convenience of book borrowing and returning.

[0039] Furthermore, in step S2, the reader is guided to insert books through voice prompts and / or the touch screen in the face recognition and operation module 4. After the reader enters the book borrowing and returning recognition mode, the access control machine can prompt the reader to insert books one by one, pay attention to the insertion direction, or wait for the recognition to complete through voice prompts. At the same time, it can also display corresponding text instructions, graphic information, or operation steps on the touch screen in the face recognition and operation module 4, so that the reader can intuitively understand the book insertion method and the current processing status during the borrowing and returning process, reduce misoperation, and improve the smoothness of the borrowing and returning process.

[0040] In addition, when an overdue fee is detected for a book, a payment QR code is displayed on the touch screen. The book return registration can only be completed after the payment is made. That is, when the book recognition module 3 and the back-end system identify that there is an overdue fee for the corresponding borrowing record of the book, the touch screen in the face recognition and operation module 4 can automatically switch to the payment prompt interface and display the payment QR code. After the reader completes the payment, the system will continue to perform the book return status update and registration process. This allows the overdue fee payment and book return process to be completed on the same device, avoiding readers having to go to other terminals to make payments, and improving the integrity and convenience of the book return process.

[0041] In practical applications, this library access control system, which integrates book borrowing and returning functions, not only performs reader identification, book identification, borrowing and returning registration, and book output or return processing, but also has good emergency response capabilities and flexibility in troubleshooting. When the book borrowing and returning function unit 2 malfunctions, is not powered on, or the venue enters an emergency evacuation state, the access control system can still rely on the turnstile barrier 1 to achieve basic personnel access management, avoiding the impact on personnel passage efficiency due to abnormal book borrowing and returning functions, thereby improving the reliability and applicability of the equipment in actual venue operation.

[0042] The library access control system in this embodiment offers flexible deployment options, allowing for independent, combined, or distributed deployments based on library size, reader traffic, and borrowing needs. In an independent deployment scenario, this system can replace traditional single-function access control systems at library entrances and exits, enabling readers to borrow and return books simultaneously with identity verification. This is suitable for integrated scenarios with high borrowing frequency and a desire to optimize access and return processes. In a combined deployment scenario, this system can also be used in conjunction with regular access control systems. For example, in public libraries, university libraries, or future learning centers, the number and ratio of integrated access control systems to regular access control systems can be flexibly configured based on borrowing and traffic volume at different times, thus controlling investment costs while meeting both rapid borrowing and return needs and general access requirements. In a distributed deployment scenario, this system can also be placed in reading corners, learning spaces, or small libraries, providing each area with independent borrowing, return, and access management capabilities. This facilitates unified and standardized management while reducing the space occupied by traditional self-service borrowing and return equipment.

[0043] Furthermore, this access control system is also suitable for upgrading and renovating older libraries. For locations already equipped with access control systems, gate systems, or turnstiles, a book borrowing and returning function cabinet 2 can be added to one side of the existing equipment, thus expanding the book borrowing and returning functions while preserving as much of the original access control equipment as possible. When the original equipment lacks facial recognition and display operation capabilities, a facial recognition and operation module 4 can be added to achieve identity verification, borrowing and returning confirmation, and information interaction functions. Regarding system integration, the back-end management and control system of the book borrowing and returning function cabinet 2 can interface with the existing access control system to achieve linked personnel access control. It can also interface with the library management system to achieve linked functions such as borrowing, returning, status updates, and anomaly handling. Through these methods, the existing equipment can be reused and upgraded at a relatively low cost, improving the economy and ease of implementation of intelligent transformation for older libraries.

[0044] In summary, this invention provides a library access control system integrating book borrowing and returning functions and its usage method. By setting up a book borrowing and returning function box 2 on one side of the gate barrier 1, and within the box 2 are a book inlet 21, an upper slide plate 22, an L-shaped baffle 23, an electrically controlled rotating structure 24, a lower slide plate 25, a book outlet 26, a book drop box 27, and an electrically controlled barrier structure 28, and in conjunction with a book recognition module 3 and a face recognition and operation module 4, books entering the box 2 can be identified, confirmed, and either output to the opposite side or returned to the reader's side. Simultaneously, readers can complete identity verification and book borrowing / returning operations during passage. This technical solution not only effectively simplifies the repetitive operation process caused by the separation of access control verification and book borrowing / returning in traditional libraries, improving book borrowing and returning efficiency and personnel passage efficiency, but also reduces the need for independent self-service borrowing and returning equipment, saving venue space, optimizing reader flow, and ensuring the accuracy of book recognition, book protection, and reliability of abnormal return handling. Furthermore, this invention is compatible with various book management methods such as visual recognition, radio frequency identification, and magnetic stripe recognition, making it suitable for the construction, renovation, and upgrading of different types of libraries. It is of positive significance for promoting the integrated development of smart library access equipment and book lending and returning equipment, improving the level of intelligent library management, and enhancing application flexibility.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Under the concept of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A library access control system integrating book borrowing and returning functions, characterized in that, include: A turnstile barrier (1) is installed in the passage area to control the passage of readers; The book borrowing and returning function box (2) is located on one side of the gate barrier (1). The book borrowing and returning function box (2) is provided with a book inlet (21) and has an upper slide plate (22), an L-shaped structure baffle (23), an electrically controlled rotating structure (24), a lower slide plate (25), a book outlet (26), and a book drop box (27) inside. The book inlet (21), upper slide plate (22), lower slide plate (25), book outlet (26), and book drop box (27) are respectively located on both sides of the book borrowing and returning function box (2). The book recognition module (3) is located inside the book borrowing and returning function box (2) and is used to recognize the books inserted into the book borrowing and returning function box (2); The face recognition and operation module (4) is located on the upper part of the book borrowing and returning function box (2) and is used to collect and verify the reader's identity information and provide book borrowing and returning confirmation operation. Sensors, located on both sides of the aisle, are used to detect whether readers are carrying books; The L-shaped baffle (23) is composed of two baffles arranged at an angle, and the central part is provided with the electrically controlled rotating structure (24). The L-shaped baffle (23) is provided with an electrically controlled blocking structure (28). The electrically controlled blocking structure (28) includes two electrically controlled baffles (281) and an opening (282) corresponding to the two electrically controlled baffles (281). In the initial state, the electrically controlled rotating structure (24) and the electrically controlled baffle (281) are both locked. After the book enters the borrowing and returning function box (2) through the book inlet (21), it slides down along the upper slide plate (22) and is blocked by the electrically controlled baffle (281) at the recognition position. After the book recognition module (3) completes the book recognition, the electrically controlled baffle (281) on the book inlet side is unlocked when the reader confirms the borrowing and returning. The electrically controlled baffle (281) is then unlocked under the influence of the book's gravity. The book rotates down to make way for the corresponding opening (282) on the same side, allowing the book to pass through the opening (282) on the other side and be guided by the sliding slide plate (25) before entering the opposite book box (27) through the book outlet (26). In the event of abnormal book recognition, abnormal borrowing information, or reader confirmation of timeout or cancellation of borrowing or returning, the electronically controlled rotating structure (24) is unlocked, and the L-shaped structure baffle (23) rotates as a whole under the action of the book's gravity, causing the book to fall back to the reader's side book box (27).

2. The library access control machine with integrated book borrowing and returning functions according to claim 1, characterized in that, The book recognition module (3) includes a wide-angle camera (31) which faces the book recognition location and is used to collect image information of the book.

3. The library access control machine with integrated book borrowing and returning functions according to claim 2, characterized in that, The book recognition module (3) also includes a flash (32), which is located near the wide-angle camera (31) and is used to provide supplementary lighting for the book during the book recognition process to improve the accuracy of image recognition.

4. The library access control machine with integrated book borrowing and returning functions according to claim 2, characterized in that, The book identification module (3) also includes an RFID identification device and / or a magnetic stripe identification device for identifying the RFID information and / or magnetic stripe information of books, so as to be compatible with the book management of radio frequency schemes, magnetic stripe schemes and visual recognition schemes.

5. The library access control machine with integrated book borrowing and returning functions according to claim 1, characterized in that, The L-shaped baffle (23) returns to its initial position by its own weight after the book falls back to the reader's side book box (27); or, the L-shaped baffle (23) returns to its initial position by a reset spring; the electronically controlled baffle (281) returns to its initial position by a reset spring after the book passes through the opening (282).

6. The library access control machine with integrated book borrowing and returning functions according to claim 1, characterized in that, The book borrowing and returning function box (2) is equipped with a small fan and / or ultraviolet lamp module on the inner side near the book inlet (21) for dust removal and / or disinfection of books entering the book borrowing and returning function box (2).

7. The library access control machine with integrated book borrowing and returning functions according to claim 1, characterized in that, The upper slide plate (22) and / or the lower slide plate (25) have a preset tilt angle, and the bearing surface that the book contacts during the sliding process is provided with damping covered ball bearings (29); the book box body (27) has an inclined structure inside and a rubber buffer bottom surface at the bottom.

8. A method of using a library access control machine with integrated book borrowing and returning functions as described in any one of claims 1-7, characterized in that, Includes the following steps: S1, verify the reader's rights through face recognition and operation module (4), and use sensors set on both sides of the channel to detect whether the reader is carrying books; S2, if the sensor does not detect a book, the gate barrier (1) will be opened after the identity verification is passed, allowing the reader to pass directly; if the sensor detects a book, the borrowing and returning identification mode will be entered, and the reader will be guided to insert the books one by one into the book inlet (21) of the borrowing and returning function box (2). S3, after the book enters the book borrowing and returning function box (2) through the book inlet (21), it slides down along the upper slide plate (22) and is blocked at the recognition position by the electronic control baffle (281). The book information is obtained through the book recognition module (3), and the reader is prompted to confirm the borrowing and returning through the face recognition and operation module (4). S4, when the book is recognized normally and the reader confirms the borrowing and returning, the electronic control baffle (281) on the book entry side is unlocked. The electronic control baffle (281) rotates to the corresponding opening (282) on the same side under the action of the book's gravity, so that the book passes through the opening (282) on the other side and is guided by the sliding slide plate (25) before entering the opposite book box (27) through the book exit (26). At the same time, the corresponding borrowing status or returning status is synchronized to the library management system according to the reader's direction of entering and leaving the library. After the identity verification is passed, the gate barrier (1) is opened, and the reader can take the book after passing through. S5, in the event of abnormal book recognition, abnormal borrowing information, reader confirmation timeout or cancellation of borrowing and returning, the electronically controlled rotating structure (24) is unlocked, and the L-shaped structure baffle (23) rotates as a whole under the action of the book's gravity, so that the book falls back to the reader's side book box (27) and is retrieved by the reader.

9. The method of use according to claim 8, characterized in that, In step S2, the reader is guided to insert a book through voice broadcast and / or the touch screen in the face recognition and operation module (4).

10. The method of use according to claim 9, characterized in that, In step S4, when it is detected that a book is overdue and requires payment, a payment QR code is displayed on the touch screen. The book return registration can only be completed after the payment is made.

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