CN108230582A - Library management system with warning function - Google Patents
Library management system with warning function Download PDFInfo
- Publication number
- CN108230582A CN108230582A CN201810005905.6A CN201810005905A CN108230582A CN 108230582 A CN108230582 A CN 108230582A CN 201810005905 A CN201810005905 A CN 201810005905A CN 108230582 A CN108230582 A CN 108230582A
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- Prior art keywords
- connect
- diode
- power supply
- oxide
- semiconductor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
- G07G1/00—Cash registers
- G07G1/0036—Checkout procedures
- G07G1/0045—Checkout procedures with a code reader for reading of an identifying code of the article to be registered, e.g. barcode reader or radio-frequency identity [RFID] reader
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
- G07G1/00—Cash registers
- G07G1/12—Cash registers electronically operated
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2451—Specific applications combined with EAS
- G08B13/2457—Lending systems using EAS tags wherein the tags are reusable, e.g. they can be activated and deactivated more than once, e.g. for a library
Abstract
The invention discloses a kind of library management systems with warning function, including the communication server, books statistical server, inquiry server, access control equipment, alarm, wireless transport module and self-service borrow terminal, self-service terminal of borrowing is connect by wireless transport module with the communication server, self-service terminal of borrowing includes microprocessor, borrows ticket identifier, electron scanning rifle and power-supplying circuit, borrow ticket identifier connect with microprocessor, the personal information for reading student, electron scanning rifle connect with microprocessor；Power-supplying circuit includes the first DC power supply, the second DC power supply, the first triode, the first metal-oxide-semiconductor, first resistor, second resistance, the first diode and the second diode, and the one end of the first DC power supply respectively with the source electrode of the first metal-oxide-semiconductor and first resistor is connect.The circuit structure of the present invention is relatively simple, cost is relatively low, the safety and reliability of circuit is higher.
Description
Technical field
The present invention relates to book management field, more particularly to a kind of library management system with warning function.
Background technology
Book management system be a collection that can be managed information being made of people, computer etc., transmission, processing,
The system for preserving, safeguarding and using.Utilize the behavior of information control enterprise；Enterprise is helped to realize its object of planning, modern big
The system that medium-sized enterprise utilizes one after another.Book management system integrated use management science, systematic science, operational research, statistics
With the knowledge of the subjects such as computer science.Existing book management system cost is higher, the circuit that book management system is related to
Partial structure is complex, and hardware cost is higher.And the circuit part of existing book management system lacks corresponding circuit
Defencive function, the safety and reliability for causing circuit be not high.
Invention content
The technical problem to be solved in the present invention is, for the drawbacks described above of the prior art, provide a kind of circuit structure compared with
For the library management system with warning function simple, that cost is relatively low, the safety and reliability of circuit is higher.
The technical solution adopted by the present invention to solve the technical problems is：Construct a kind of library's pipe with warning function
Reason system, including the communication server, books statistical server, inquiry server, access control equipment, alarm, wireless transport module
Terminal is borrowed with self-service, the self-service terminal of borrowing is connect by the wireless transport module with the communication server, described
Self-service terminal of borrowing includes microprocessor, borrows ticket identifier, electron scanning rifle and power-supplying circuit, described to borrow card identification
Device is connect with the microprocessor, the personal information for reading student, the electron scanning rifle connect with the microprocessor,
The information that books are borrowed described in the acquisition of the bar code on books, the power-supplying circuit and the microprocessor are borrowed for scanning
Device connects, for powering, and the books statistical server and inquiry server are connect with the communication server, the gate inhibition
Equipment is connect with the communication server, and the alarm connect with the communication server, for borrowing books not when described
Completion sends out alarm when borrowing scanning and going out in violation of rules and regulations, and the communication server is built-in with timer；
The power-supplying circuit includes the first DC power supply, the second DC power supply, the first triode, the first metal-oxide-semiconductor, the
One resistance, second resistance, the first diode and the second diode, first DC power supply respectively with first metal-oxide-semiconductor
Source electrode is connected with one end of first resistor, the other end of the first resistor grid and first with first metal-oxide-semiconductor respectively
The collector connection of triode, the drain electrode of first metal-oxide-semiconductor are connect with one end of the second resistance, the second resistance
The other end is connect with second DC power supply, the anode of first diode and the anode of the second diode with it is described micro-
The control signal output connection of processor, the cathode of first diode connect with second DC power supply, and described the
The cathode of two diodes is connect with the base stage of first triode, the emitter ground connection of first triode, and described second
The resistance value of resistance is 22k Ω.
Of the present invention in the library management system of warning function, the power-supplying circuit further includes
One capacitance, the grid of one end of first capacitance respectively with the other end of the first resistor and the first metal-oxide-semiconductor is connect, described
The other end of first capacitance is connect with the collector of first triode, and the capacitance of first capacitance is 450pF.
Of the present invention in the library management system of warning function, the power-supplying circuit further includes
Three diodes, the anode of the third diode are connect with the control signal output of the microprocessor, the three or two pole
Anode of the cathode of pipe respectively with the anode of first diode and the second diode is connect, the model of the third diode
For e-501.
Of the present invention in the library management system of warning function, the power-supplying circuit further includes
Three resistance, one end of the 3rd resistor are connect with the emitter of first triode, another termination of the 3rd resistor
Ground, the resistance value of the 3rd resistor is 18k Ω.
Of the present invention in the library management system of warning function, first triode is NPN type three
Pole pipe, first metal-oxide-semiconductor are P-channel metal-oxide-semiconductor.
Of the present invention in the library management system of warning function, the wireless transport module is bluetooth mould
Block, WIFI module, GPRS module, gsm module, CDMA module, WCDMA modules, Zigbee module or LoRa modules.
Implement the library management system with warning function of the present invention, have the advantages that：Due to being equipped with packet
It includes the communication server, books statistical server, inquiry server, access control equipment, alarm, wireless transport module and self-service borrows
Terminal, self-service terminal of borrowing include microprocessor, borrow ticket identifier, electron scanning rifle and power-supplying circuit, power supply power supply
Circuit includes the first DC power supply, the second DC power supply, the first triode, the first metal-oxide-semiconductor, first resistor, second resistance, first
Diode and the second diode, the power-supplying circuit is relative to traditional power supply circuit, and the component used is less, in this way
Hardware cost can be reduced, in addition, second resistance is used to carry out current-limiting protection, therefore circuit to the drain current of the first metal-oxide-semiconductor
Structure is relatively simple, cost is relatively low, the safety and reliability of circuit is higher.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram in the library management system one embodiment of the present invention with warning function；
Fig. 2 is the circuit diagram of power-supplying circuit in the embodiment.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
In the library management system embodiment for having warning function in the present invention, the library that should have warning function is managed
The structure diagram of reason system is as shown in Figure 1.In Fig. 1, the library management system that should have warning function includes communication service
Device 1, books statistical server 2, inquiry server 3, access control equipment 4, alarm 5, wireless transport module 6 and self-service borrow terminal
7, wherein, self-service terminal 7 of borrowing is connect by wireless transport module 6 with the communication server 1, and self-service terminal 7 of borrowing includes micro- place
Reason device 71 borrows ticket identifier 72, electron scanning rifle 73 and power-supplying circuit 74, borrows ticket identifier 72 and microprocessor 71
Connection, the personal information for reading student, electron scanning rifle 73 connect with microprocessor 71, are borrowed on books for scanning
Bar code obtains the information for borrowing books, and power-supplying circuit 74 is connect with microprocessor 71, for powering, books statistical fractals
Device 2 and inquiry server 3 are connect with the communication server 1, and access control equipment 4 is connect with the communication server 1, and student is by borrowing card
It swipes the card the access control equipment 4 in disengaging library, alarm 5 connect with the communication server 1, does not complete to borrow for ought borrow books and sweep
It retouches and sends out alarm when going out in violation of rules and regulations, self-service terminal 7 of borrowing is borrowed in confirmation after books complete to borrow scanning, can just be eliminated and be borrowed
Otherwise the books alarm gone out in violation of rules and regulations borrows books and once leaves the self-service range for borrowing the covering of terminal 7, start alarm 5 into
Row alarm.The communication server 1 is also built-in with timer 11.
When checking out, student (reader) is swiped the card by borrowing card into the access control equipment 4 in library, then by self-service
Terminal 7 or inquiry server 3 are borrowed, the books and its surplus and current state oneself wanting to borrow are inquired, are helped
Reader accurately finds the bookshelf orientation borrowed where books, and final borrow wants the books borrowed to oneself；Pass through electronics simultaneously
Scanner 73 is scanned books, borrows ticket identifier 72, is identified to borrowing card, and self-service terminal 7 of borrowing is borrowed in confirmation
It reads books to have completed to borrow after scanner uni borrows card identification, reader can take books out of in library, otherwise borrow books one
Denier leaves the self-service coverage area for borrowing terminal 7, then starts alarm 5；However books statistical server 2 is to Current Libraries institute
The books of collection and the books lent out carry out statistics again and update in real time, convenient for other people borrow.
It is when reader gives back book process：After the books lending borrowed, timer 11 starts, near the also book time
But forget that students of books sends out prompting by the form of wechat, short message or Email；When giving back, reader borrows according to self-service
It reads terminal 7 and scans books, and show the bookshelf number and specific location borrowed where books, books will be borrowed and replaced, simultaneously
Books that books statistical server 2 collects Current Libraries and the books given back carry out statistics again in real time
And update, convenient for other people borrow.
It is noted that in the present embodiment, wireless transport module 6 can be bluetooth module, WIFI module, GPRS moulds
Block, gsm module, CDMA module, WCDMA modules, Zigbee module or LoRa modules etc..By setting a variety of wireless transmission sides
Formula can meet the needs of different user, increase the flexibility used.During in particular by LoRa modules, the distance of transmission compared with
Far, and communication performance is relatively stable, suitable for the occasion higher to QoS requirement.In practical applications, user can root
According to itself needing flexibly to select corresponding wireless transmission method.
Fig. 2 is the circuit diagram of power-supplying circuit in the present embodiment, and in Fig. 2, which includes the
One DC power supply VCC, the second DC power supply VDD, the first triode Q1, the first metal-oxide-semiconductor M1, first resistor R1, second resistance R2,
First diode D1 and the second diode D2, wherein, the first DC power supply VCC source electrodes and first with the first metal-oxide-semiconductor M1 respectively
One end connection of resistance R1, the other end of first resistor R1 respectively with the grid of the first metal-oxide-semiconductor M1 and the collection of the first triode Q1
Electrode connects, and the drain electrode of the first metal-oxide-semiconductor M1 is connect with one end of second resistance R2, the other end of second resistance R2 and the second direct current
The anode of power vd D connections, the anode of the first diode D1 and the second diode D2 are defeated with the control signal of microprocessor 71
Outlet ON/OFF connections, the cathode of the first diode D1 are connect with the second DC power supply VDD, the cathode of the second diode D2 and
The base stage connection of one triode Q1, the emitter ground connection of the first triode Q1.
The power-supplying circuit 74 is relative to traditional power supply circuit, and the component used is less, and circuit structure is more
Simply, hardware cost can be reduced in this way.Second resistance R2 be current-limiting resistance, for the drain current to the first metal-oxide-semiconductor M1 into
Row current-limiting protection.It is noted that in the present embodiment, the resistance value of second resistance R2 is 22k Ω, certainly, in practical applications,
The resistance value of second resistance R2 can adjust accordingly as the case may be.
In the present embodiment, the cathode of the first diode D1 is connected whether detect load with the second DC power supply VDD
Short circuit, when short circuit occurs for load, also shorted to earth, the voltage of the anode of the first diode D1 are left for 0.7V by the first diode D1
The right side, connected the second diode D2 again between the first diode D1 and the base stage of the first triode Q1, and the second diode D2
Conduction voltage drop is 0.7V, this voltage allowed between the base stage of the first triode Q1 and emitter is less than 0.7V, the one or three pole
Pipe Q1 can not work, so that the grid voltage of the first metal-oxide-semiconductor M1 and source voltage are that the first DC power supply VCC is provided
Voltage value, i.e. VGS=0V, at this time the first metal-oxide-semiconductor M1 be not turned on.When loading normal work, the first diode D1 is in cut-off shape
State, the second diode D2 and the first triode Q1 are both turned on, and then the first metal-oxide-semiconductor M1 is also switched on, at this time the power-supplying circuit
74 be load normal power supply.
When short circuit occurs for load, the cathode voltage of the first diode D1 can remain 0.7V, the first triode Q1 always
Always it does not work, and then the first metal-oxide-semiconductor M1 has thus reached the mesh for protecting short circuit for a long time also always in cut-off state
's.The control signal output ON/OFF of microprocessor 71 can be used for the working condition of the active control power-supplying circuit 74,
During the control signal output ON/OFF output high level of microprocessor 71, which is in normal work shape
State, when the control signal output ON/OFF of microprocessor 71 exports low level, which is in standby shape
State.
It is noted that in the present embodiment, the first triode Q1 is NPN type triode, and the first metal-oxide-semiconductor M1 is P-channel
Metal-oxide-semiconductor.Certainly, in practical applications, the first triode Q1 may be PNP type triode, and the first metal-oxide-semiconductor M1 may be N
Channel MOS tube, but at this moment the structure of circuit also will accordingly change.
In the present embodiment, which further includes one end of the first capacitance C1, the first capacitance C1 respectively with
The grid of the other end of one resistance R1 and the first metal-oxide-semiconductor M1 connect, the other end of the first capacitance C1 and the collection of the first triode Q1
Electrode connects.First capacitance C1 is coupled capacitor, for preventing the interference between the first triode Q1 and the first metal-oxide-semiconductor M1, with
Further enhance the safety and reliability of circuit.It is noted that in the present embodiment, the capacitance of the first capacitance C1 is
450pF, certainly, in practical applications, the capacitance of the first capacitance C1 can adjust accordingly as the case may be.
In the present embodiment, which further includes third diode D3, the anode of third diode D3 with it is micro-
The control signal output ON/OFF connections of processor 71, the cathode of the third diode D3 anode with the first diode D1 respectively
It is connected with the anode of the second diode D2.Third diode D3 is Current Limiting Diodes, for the base stage electricity to the first triode Q1
Stream carries out current-limiting protection, further to enhance the safety and reliability of circuit.It is noted that in the present embodiment, the
The model e-501 of three diode D3, certainly, in practical applications, third diode D3 can also select other models to have
The diode of similar functions.
In the present embodiment, which further includes 3rd resistor R3, one end of 3rd resistor R3 and the one or three
The emitter connection of pole pipe Q1, the other end ground connection of 3rd resistor R3.3rd resistor R3 is current-limiting resistance, for the one or three pole
The emitter current of pipe Q1 carries out current-limiting protection, to further enhance current limitation effect.It is noted that in the present embodiment, the
The resistance value of three resistance R3 is 18k Ω, and certainly, in practical applications, the resistance value of 3rd resistor R3 can carry out as the case may be
Corresponding adjustment.
In short, in the present embodiment, the power-supplying circuit 74 relative to traditional power supply circuit, the component used compared with
Few, circuit structure is relatively simple, can reduce hardware cost in this way.In addition, current-limiting resistance is equipped in the power-supplying circuit 74,
Therefore the safety and reliability of circuit is higher.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (6)
1. a kind of library management system with warning function, which is characterized in that including the communication server, books statistical fractals
Device, inquiry server, access control equipment, alarm, wireless transport module and it is self-service borrow terminal, the self-service terminal of borrowing passes through
The wireless transport module is connect with the communication server, and the self-service terminal of borrowing includes microprocessor, borrows card identification
Device, electron scanning rifle and power-supplying circuit, the ticket identifier of borrowing are connect with the microprocessor, for reading student's
Personal information, the electron scanning rifle connect with the microprocessor, for scanning described in the bar code borrowed on books obtains
The information of books is borrowed, the power-supplying circuit is connect with the microprocessor, for powering, the books statistical server
It is connect with inquiry server with the communication server, the access control equipment is connect with the communication server, the alarm
Device connect with the communication server, for when it is described borrow books and do not complete borrow scanning and while going out in violation of rules and regulations sends out alarm,
The communication server is built-in with timer；
The power-supplying circuit includes the first DC power supply, the second DC power supply, the first triode, the first metal-oxide-semiconductor, the first electricity
Resistance, second resistance, the first diode and the second diode, first DC power supply source electrode with first metal-oxide-semiconductor respectively
Connected with one end of first resistor, the other end of the first resistor respectively with the grid of first metal-oxide-semiconductor and the one or three pole
The collector connection of pipe, the drain electrode of first metal-oxide-semiconductor connect with one end of the second resistance, the second resistance it is another
End is connect with second DC power supply, the anode of first diode and the anode of the second diode with the microprocessor
The control signal output connection of device, the cathode of first diode are connect with second DC power supply, and the described 2nd 2
The cathode of pole pipe is connect with the base stage of first triode, the emitter ground connection of first triode, the second resistance
Resistance value be 22k Ω.
2. the library management system according to claim 1 with warning function, which is characterized in that the power supply power supply
Circuit further includes the first capacitance, one end of first capacitance respectively with the other end of the first resistor and the first metal-oxide-semiconductor
Grid connects, and the other end of first capacitance is connect with the collector of first triode, the capacitance of first capacitance
It is worth for 450pF.
3. the library management system according to claim 2 with warning function, which is characterized in that the power supply power supply
Circuit further includes third diode, and the anode of the third diode is connect with the control signal output of the microprocessor,
Anode of the cathode of the third diode respectively with the anode of first diode and the second diode is connect, the third
The model e-501 of diode.
4. the library management system according to claim 3 with warning function, which is characterized in that the power supply power supply
Circuit further includes 3rd resistor, and one end of the 3rd resistor is connect with the emitter of first triode, the third electricity
The other end ground connection of resistance, the resistance value of the 3rd resistor is 18k Ω.
5. the library management system according to claim 4 with warning function, which is characterized in that the one or three pole
It manages as NPN type triode, first metal-oxide-semiconductor is P-channel metal-oxide-semiconductor.
6. the library management system with warning function according to claim 1 to 5 any one, which is characterized in that
The wireless transport module for bluetooth module, WIFI module, GPRS module, gsm module, CDMA module, WCDMA modules,
Zigbee module or LoRa modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005905.6A CN108230582A (en) | 2018-01-03 | 2018-01-03 | Library management system with warning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005905.6A CN108230582A (en) | 2018-01-03 | 2018-01-03 | Library management system with warning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108230582A true CN108230582A (en) | 2018-06-29 |
Family
ID=62645311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810005905.6A Pending CN108230582A (en) | 2018-01-03 | 2018-01-03 | Library management system with warning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108230582A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009301158A (en) * | 2008-06-11 | 2009-12-24 | Hitachi Ltd | Electronic tag having detachable antenna |
| CN104200582A (en) * | 2014-08-29 | 2014-12-10 | 韦棋 | Library self-service management system |
| CN104578382A (en) * | 2013-10-16 | 2015-04-29 | 成都凯智科技有限公司 | Small UPS (uninterrupted power supply) supplying power to video camera |
| CN104637145A (en) * | 2014-12-31 | 2015-05-20 | 天津瑞为拓新科技发展有限公司 | Self-help university library borrowing terminal based on face recognition |
| CN104835268A (en) * | 2015-04-07 | 2015-08-12 | 济南大学 | System and method for intelligent library management |
-
2018
- 2018-01-03 CN CN201810005905.6A patent/CN108230582A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009301158A (en) * | 2008-06-11 | 2009-12-24 | Hitachi Ltd | Electronic tag having detachable antenna |
| CN104578382A (en) * | 2013-10-16 | 2015-04-29 | 成都凯智科技有限公司 | Small UPS (uninterrupted power supply) supplying power to video camera |
| CN104200582A (en) * | 2014-08-29 | 2014-12-10 | 韦棋 | Library self-service management system |
| CN104637145A (en) * | 2014-12-31 | 2015-05-20 | 天津瑞为拓新科技发展有限公司 | Self-help university library borrowing terminal based on face recognition |
| CN104835268A (en) * | 2015-04-07 | 2015-08-12 | 济南大学 | System and method for intelligent library management |
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Application publication date: 20180629 |