CN211579590U

CN211579590U - Intelligent bookshelf

Info

Publication number: CN211579590U
Application number: CN202020388628.4U
Authority: CN
Inventors: 丁振莹; 张丹伟
Original assignee: Guangxi Zhongke Zhilian Information Technology Co ltd
Current assignee: Guangxi Zhongke Zhilian Information Technology Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-09-25
Anticipated expiration: 2030-03-24

Abstract

The utility model relates to the field of bookshelves, and discloses an intelligent bookshelf, which comprises an infrared transmitter, an infrared receiver, an infrared controller, a power supply module, a reader-writer, a power divider, an antenna, a switch, an integrated machine, a video monitoring module, an upper computer and a label, wherein the infrared transmitter, the infrared receiver and the power supply module are all connected with the infrared controller, the reader-writer is respectively connected with the infrared controller, the power divider and the switch, the antenna is connected with the power divider, and the switch is respectively connected with the integrated machine, the video monitoring module and the upper computer; the power supply module comprises 220V alternating current, a first resistor, a transient voltage suppression diode, a first capacitor, a first triode, a third resistor, a second resistor, a transformer, a fourth diode, a second capacitor, a third diode, a storage battery, a switch and a voltage output end. The utility model discloses circuit structure is comparatively simple, the cost is lower, the security and the reliability of convenient maintenance, circuit are higher.

Description

Intelligent bookshelf

Technical Field

The utility model relates to a bookshelf field, in particular to intelligent bookshelf.

Background

The intelligent bookshelf is a set of high-performance real-time management system for books on shelves, realizes single-level article identification of the books on shelves by utilizing a high-frequency ISO/IEC 15693RFID technology, and can complete functions of monitoring, checking, book inquiry positioning, wrong shelf statistics and the like of library collection. The intelligent bookshelf system has the characteristics of high detection speed, accurate positioning and the like. Can be applied to the fields of book, file management and the like. Fig. 1 is a schematic circuit diagram of a power supply part of a conventional intelligent bookshelf, and it can be seen from fig. 1 that the power supply part of the conventional intelligent bookshelf uses many components and parts, has a complex circuit structure, is high in hardware cost, and is inconvenient to maintain. In addition, because the power supply part of the traditional intelligent bookshelf lacks corresponding circuit protection functions, for example: the safety and reliability of the circuit are poor due to the lack of the current-limiting protection function.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a circuit structure comparatively simple, the cost is lower, the security and the higher intelligent bookshelf of reliability of convenient maintenance, circuit.

The utility model provides a technical scheme that its technical problem adopted is: the intelligent bookshelf comprises an infrared transmitter, an infrared receiver, an infrared controller, a power supply module, a reader-writer, a power divider, an antenna, a switch, an all-in-one machine, a video monitoring module, an upper computer and a label, wherein the infrared transmitter, the infrared receiver and the power supply module are all connected with the infrared controller;

the power supply module comprises 220V alternating current, a first resistor, a transient voltage suppression diode, a first capacitor, a first triode, a third resistor, a second resistor, a transformer, a fourth diode, a second capacitor, a third diode, a storage battery, a switch and a voltage output end, one end of the 220V alternating current is connected with one end of the first resistor, the other end of the first resistor is respectively connected with the anode of the first diode and one end of the transient voltage suppression diode, the cathode of the first diode is respectively connected with one end of the first capacitor, one end of the primary coil of the transformer and one end of the second resistor, the other end of the primary coil of the transformer is connected with the collector of the first triode, the emitter of the first triode is connected with one end of the third resistor, and the other end of the second resistor is respectively connected with one end of the secondary coil of the transformer, One end of the second capacitor is connected with the anode of the third diode, the base of the first triode is connected with the cathode of the fourth diode, the anode of the fourth diode is respectively connected with the other end of the secondary coil of the transformer and the cathode of the second diode, the cathode of the third diode is respectively connected with the anode of the storage battery and one end of the switch, the other end of the switch is connected with one end of the voltage output end, and the other end of the 220V alternating current is respectively connected with the other end of the transient voltage suppression diode, the other end of the first capacitor, the other end of the third resistor, the anode of the second diode, the other end of the second capacitor, the cathode of the storage battery and the other end of the voltage output end.

In the intelligent bookshelf of the present invention, the fourth diode is E-822.

In the intelligent bookshelf, the power supply module further includes a fourth resistor, one end of the fourth resistor is connected with one end of the secondary coil of the transformer, and the other end of the fourth resistor is connected with one end of the second resistor.

In the intelligent bookshelf of the present invention, the resistance of the fourth resistor is 20k Ω.

In the intelligent bookshelf of the present invention, the first triode is an NPN-type triode.

Implement the utility model discloses an intelligent bookshelf has following beneficial effect: because the intelligent bookshelf is provided with the infrared transmitter, the infrared receiver, the infrared controller, the power supply module, the reader-writer, the power divider, the antenna, the switch, the all-in-one machine, the video monitoring module, the upper computer and the label, the power supply module comprises 220V alternating current, a first resistor, a transient voltage suppression diode, a first capacitor, a first triode, a third resistor, a second resistor, a transformer, a fourth diode, a second capacitor, a third diode, a storage battery, a switch and a voltage output end, compared with the power supply part of the traditional intelligent bookshelf, the used components are fewer, and because some components are saved, the hardware cost can be reduced, in addition, the fourth diode is used for current-limiting protection, so that the circuit structure is simple, the cost is low, the maintenance is convenient, and the safety and the reliability of the circuit are high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic circuit diagram of a power supply part of a conventional intelligent bookshelf;

fig. 2 is a schematic structural diagram of an embodiment of the intelligent bookshelf of the invention;

fig. 3 is a schematic circuit diagram of the power supply module in the embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the embodiment of the intelligent bookshelf of the present invention, a schematic structural diagram of the intelligent bookshelf is shown in fig. 2. In fig. 2, this intelligent bookshelf includes infrared transmitter 1, infrared receiver 2, infrared controller 3, power module 4, reader-writer 5, the merit is divided ware 6, antenna 7, switch 8, all-in-one 9, video monitoring module 10, host computer 11 and label (not shown in the figure), wherein, infrared transmitter 1, infrared receiver 2 and power module 4 all are connected with infrared controller 3, reader-writer 5 is connected with infrared controller 3, merit is divided ware 6 and switch 8 respectively, antenna 7 is connected with merit and is divided ware 6, switch 8 respectively with all-in-one 9, video monitoring module 10 and host computer 11 are connected, reader-writer 5 passes through radio frequency mode and label wireless connection.

The reader-writer 5 is responsible for detecting and positioning the tags, communicating with an infrared controller, collecting and feeding back infrared information of the intelligent bookshelf, reporting the infrared information to the upper computer 11, and providing the infrared information for the upper computer 11. The all-in-one machine 9 can be used for checking the existing library book of the intelligent bookshelf, the position information of the library book and the like, and can also check the recommended books of the library in real time. The video monitoring module 10 monitors the dynamic state of the intelligent bookshelf in real time, prevents books from being lost, uploads monitoring video information to the upper computer 11 in real time or at regular time, and when a reader is found not to operate the intelligent bookshelf according to requirements, dissuasion and warning can be timely made to the intelligent bookshelf. When the book is found to be lost, the clue can be found out in the first time, so that the lost book can be conveniently and timely retrieved.

The information of books is input into the label, the information of the books can be integrated into the database, and the database is convenient to call in the later period. When a reader takes a book, the infrared emitter 1 on the corresponding layer is triggered, then book information on the layer is updated, and the taken book is counted for book confidence statistics.

In this embodiment, the infrared transmitter 1, the infrared receiver 2, the infrared controller 3, the writer 5, the power divider 6, the antenna 7, the switch 8, the all-in-one machine 9, the video monitoring module 10, the upper computer 11, and the tag are all implemented by using a structure in the prior art, and the working principle thereof is also the working principle in the prior art, which is not described in detail herein.

Fig. 3 is a schematic circuit diagram of a power supply module in this embodiment, in fig. 3, the power supply module 4 includes a 220V AC power AC, a first resistor R1, a transient voltage suppression diode DW, a first diode D1, a first capacitor C1, a first transistor Q1, a third resistor R3, a second resistor R2, a transformer T, a fourth diode D4, a second diode D2, a second capacitor C2, a third diode D3, a battery E, a switch K, and a voltage output Vo, wherein one end of the 220V AC power AC is connected to one end of the first resistor R1, the other end of the first resistor R1 is connected to an anode of the first diode D1 and one end of the transient voltage suppression diode DW, a cathode of the first diode D1 is connected to one end of the first capacitor C1, one end of a primary coil of the transformer T, and one end of the second resistor R2, and the other end of the primary coil of the transformer T is connected to a collector of the first transistor Q1, an emitting electrode of the first triode Q1 is connected with one end of a third resistor R3, the other end of a second resistor R2 is respectively connected with one end of a secondary coil of the transformer T, one end of a second capacitor C2 and an anode of a third diode D3, a base electrode of the first triode Q1 is connected with a cathode of a fourth diode D4, an anode of the fourth diode D4 is respectively connected with the other end of the secondary coil of the transformer T and a cathode of the second diode D2, a cathode of the third diode D3 is respectively connected with an anode of the storage battery E and one end of a switch K, the other end of the switch K is connected with one end of the voltage output end Vo, the other end of the 220V alternating current AC is respectively connected with the other end of the transient voltage suppression diode DW, the other end of the first capacitor C1, the other end of the third resistor R3, the anode of the second diode D2, the other end of the second capacitor C2, the cathode of the storage battery E and the other end of the voltage output end Vo.

Compared with the power supply part of the traditional intelligent bookshelf in fig. 1, the power supply module 4 has the advantages of fewer used components, simpler circuit structure and convenience in maintenance, can reduce hardware cost due to the fact that some components are saved, and is used for current-limiting protection of base current of the first triode Q1, and the fourth diode D4 is a current-limiting diode. The current limiting protection principle is as follows: when the base current of the first triode Q1 is large, the base current of the first triode Q1 can be reduced by the fourth diode D4 to keep the base current in a normal working state, and the elements in the circuit are not burnt out due to too large current, so that the safety and reliability of the circuit are high. It should be noted that in the present embodiment, the fourth diode D4 has a model number E-822. Of course, in practical applications, other types of diodes with the same function may be used as the fourth diode D4.

The working principle of the power supply module 4 is as follows: after the 220V alternating current AC is subjected to voltage reduction by the first resistor R1, rectification by the first diode D1, and high-frequency interference filtering by the first capacitor C1, a half-wave pulsating voltage with a peak value of 200V and a period of 20ms is generated at the cathode of the first diode D1, the transient voltage suppression diode DW is used for eliminating a peak voltage generated by mains supply fluctuation, and the peak voltage can be clamped to a full value. During the half-wave voltage existence period, one path of the voltage is added to the base electrode of the first triode Q1 through the second resistor R2 and the secondary winding N of the transformer T, so that the first triode Q1 is conducted; the other path of the pulse voltage passes through a primary coil of a transformer T, an emitter, a collector and a third resistor R3 of a first triode Q1 to two ends of a second capacitor C2, the first triode Q1, the transformer T, the third resistor R3, a second capacitor C2 and the like to form an intermittent oscillator, and through the positive feedback effect of the transformer T, the pulse voltage induced by a secondary coil of the transformer T is rectified by a second diode D2 and then isolated by a third diode D23 to charge a storage battery E. When the mobile power supply is needed, the switch S1 is only needed to be closed, so that a stable output voltage can be generated at the voltage output end Vo.

In this embodiment, the first transistor Q1 is an NPN transistor. Of course, in practical application, the first transistor Q1 may also be a PNP transistor, but the structure of the circuit is changed accordingly.

In this embodiment, the power supply module 4 further includes a fourth resistor R4, one end of the fourth resistor R4 is connected to one end of the secondary winding of the transformer T, and the other end of the fourth resistor R4 is connected to one end of the second resistor R2. The fourth resistor R4 is a current limiting resistor for current limiting protection. The current limiting protection principle is as follows: when the current of the branch where the fourth resistor R4 is located is large, the current of the branch where the fourth resistor R4 is located can be reduced by the fourth resistor R4, so that the branch can be kept in a normal operating state, and the components in the circuit cannot be burned out due to the large current, so that the safety and reliability of the circuit are further enhanced. It should be noted that, in the present embodiment, the resistance of the fourth resistor R4 is 20k Ω. Of course, in practical applications, the resistance of the fourth resistor R4 may be increased or decreased according to specific situations.

In a word, in this embodiment, compared with the power supply part of the conventional intelligent bookshelf, the power supply module 4 has fewer components, a simpler circuit structure and convenience in maintenance, and because some components are saved, the hardware cost can be reduced. In addition, the power supply module 4 is provided with a current limiting diode, so that the safety and the reliability of the circuit are high.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent bookshelf is characterized by comprising an infrared transmitter, an infrared receiver, an infrared controller, a power supply module, a reader-writer, a power divider, an antenna, a switch, an integrated machine, a video monitoring module, an upper computer and a label, wherein the infrared transmitter, the infrared receiver and the power supply module are all connected with the infrared controller;

2. The intelligent bookshelf of claim 1, wherein the fourth diode is type E-822.

3. The intelligent bookshelf according to claim 2, wherein the power supply module further comprises a fourth resistor, one end of the fourth resistor is connected to one end of the secondary coil of the transformer, and the other end of the fourth resistor is connected to one end of the second resistor.

4. The intelligent bookshelf according to claim 3, wherein the fourth resistor has a resistance of 20k Ω.

5. The intelligent bookshelf according to any one of claims 1-4, wherein the first triode is an NPN-type triode.