CN106127878A - A kind of portable check class attendance system and method for RFID based on all-in-one campus card - Google Patents
A kind of portable check class attendance system and method for RFID based on all-in-one campus card Download PDFInfo
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- 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
- G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
- G07C1/10—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people together with the recording, indicating or registering of other data, e.g. of signs of identity
- G07C1/12—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people together with the recording, indicating or registering of other data, e.g. of signs of identity wherein the time is indicated in figures
- G07C1/14—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people together with the recording, indicating or registering of other data, e.g. of signs of identity wherein the time is indicated in figures with apparatus adapted for use with individual cards
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- G—PHYSICS
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- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
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Abstract
The present invention relates to a kind of portable check class attendance system and method for RFID based on all-in-one campus card, including power module, input module and CPU, display module, indicating module, memory module, RFID read-write module and the low voltage detecting module being connected with power module；Campus Smart Card and radio frequency identification (RFID) technology are combined by the present invention, make full use of campus card resource, alleviate teacher's work attendance burden, in addition this system bulk is small and exquisite, easy to use, it is also possible to the usual performance according to student attendance situation every student of programming count when the end of term, save teacher's manual calculation, realize work attendance integrated with examination result, omnidistance responsible work attendance work.
Description
Technical field
The present invention relates to a kind of attendance checking system, particularly relate to a kind of all-in-one campus card RFID portable check class attendance system
And method.
Technical background
It is of common occurrence now that university students plays truant, and in order to control the rate of attending class of student, in current colleges and universities, teacher mainly uses
Artificial roll-call, the method oneself registered carry out check class attendance to student, but suffer from the drawback that
1) call the roll every time and expend certain time, occupy the classroom instruction time, and reducing roll-call, that student can be made to exist is lucky
Good fortune is psychological and cuts classes；2) partial students fish in troubled waters replacement other people answer " arriving "；3) partial students substitutes the phenomenon in other people generation " label ".
4. preventing this type of phenomenon from occurring, teacher generally requires during calling the roll that point raises one's hand the student remembeing to answer " arriving " to student,
This brings added burden for teacher.For solving above drawback, improve work attendance efficiency, simplify work attendance flow process, allow work attendance preferably superintend and direct
Promote student and arrive class on time, it is necessary to study the Time Attendance Device of a applicable University classroom.
The kind of attendance recorder is the most at present, but shortcoming is the most clearly.Patent 02159516X (multi-functional off-line fingerprint
Attendance recorder) and 201010180107 (attendance recorders) use fingerprint attendance mode, fingerprint attendance discrimination is relatively low, need to be by hands during use
Cleaning and dry, the most easily occur that None-identified is even identified as the situations such as others' fingerprint, if palm is injured in addition, palmmprint changes
None-identified, and the discrimination of module of swiping the card has reached 100%, the fingerprint identification module life-span is short compared with module life of swiping the card very in addition
Many, comprehensive use cost is higher；Patent 03100055X (number of paper card attendance devices knowledge method for distinguishing) needs to use single work attendance
Card, cost puts into high and user is inconvenient to carry；Patent 200510029805X (vocal-print attendance machine) uses sound work attendance, identifies
Rate is relatively low, and particularly when user throat is sick, sound has certain change, thus causes the situation of None-identified；Specially
Profit 2004100745025 (student's electronic attendance and real-time message send system) device is complicated, and communication cable is numerous, cost and event
Barrier rate is the highest, the carrying out by directly affecting work attendance work of once breaking down；Patent 2013103052304 (iris work attendance
Machine): need the information of typing work attendance person before use, impracticable in check class attendance；Patent 2015109620165 (a kind of based on
Degree of depth convolutional neural networks face identification method and attendance checking system) use recognition of face Work attendance method, be easily used by a person work attendance
Person's photo is cheated, it is achieved work attendance is faked.
In order to overcome the shortcoming existing for above-mentioned attendance recorder, the present invention uses campus card and radio frequency identification (RFID) etc.
Technological means, takes full advantage of campus card resource, and for University classroom work attendance feature, it is possible to make check class attendance automatization, intelligence
Can change in one.
Summary of the invention
In order to overcome the deficiency existing for existing attendance recorder, the invention provides a kind of by campus card and radio frequency identification
(RFID) technology combines and the simple in construction portable check class attendance system of portable RFID based on all-in-one campus card.
Meanwhile, present invention also offers a kind of Work attendance method utilizing said system to realize, the method speed of service is fast, can
Integrated with examination result to realize work attendance.
The technical solution used in the present invention is: be somebody's turn to do the portable check class attendance system of RFID based on all-in-one campus card, including
Power module, input module and the CPU being connected with power module, display module, indicating module, memory module,
RFID read-write module and low voltage detecting module；
CPU, is read with display module, input module, indicating module, memory module, RFID respectively by wire
Writing module and low voltage detecting module connect, and send to each module and perform order after receiving the function selecting of input module, and
Compare with the IC card information in memory module according to the IC card information that RFID read-write module reads, it is judged that the IC-card read
Information has storage record in a storage module, then attendance record counts bar corresponding to this IC-card number now, completes work attendance, and will
Work attendance information shows all work attendance information of the IC-card number simultaneously passing through this accumulative student by display module, utilizes achievement meter
Calculate rule, calculate the usual performance of this student；If the IC card information read does not finds storage record in a storage module, then
Assert that this IC-card number write memory module, for use first, is stored by this IC-card number；Meanwhile, this CPU receives
The low-voltage alarm signal that low voltage detecting module sends, and stop the work of whole system；
Display module, its signal input part is connected with the signal output part of CPU, for the shape of display system
State information, attendance record, final grade, use 32 character liquid crystal display screens；
Input module, is matrix keyboard, by input module to the selection of CPU feedback function；
Low voltage detecting module, is used for detecting supply voltage, sends low-voltage to CPU when supply voltage is low
Signal is also reported to the police by indicating module；
Indicating module, is connected with low voltage detecting module, is used for indicating working state of system, low-voltage to report to the police；
Memory module, for storing IC card information and the attendance record that student holds；
RFID read-write module, built-in oriented IC-card is launched built-in aerial and the control chip of signal, is coordinated antenna to send nothing
Line signal, reads IC card information and is stored in a storage module by corresponding card number after central processing unit for processing.
Above-mentioned CPU uses STC12C5A60S2 single-chip microcomputer or STC15F2K16S2.
Above-mentioned indicating module 1 uses NE555P timer chip to constitute bistable circuit.
A kind of Work attendance method realized by the above-mentioned portable check class attendance system of RFID based on all-in-one campus card, tool
Body comprises the steps of:
(1) when the new term begins system being initialized in per term and sets up the data base of multiple class in a storage module,
Selecting function interface after start every time, select work attendance mode of operation or examination result pattern, Checking on Work Attendance Mode is used for check class attendance,
Statistical model calculates usual performance automatically for the end of term；
(2) utilizing input module to select corresponding class, CPU sends card seeking instruction to RFID read-write module,
Detect current RFID read-write module antenna front and whether have whether IC-card and current IC-card are the Card Types that can distinguish, if
Detect that there is card and readable in current antenna front, then CPU sends to rfid interrogator and reads IC-card number instruction, reads
Judged the correctness of the IC card information obtained by CPU after taking successfully；If IC card information is correct, the most temporarily protect
Deposit this IC card information；
(3) IC card information that CPU reads according to RFID read-write module is entered with the IC card information in memory module
Row compares, it is judged that the most whether the IC card information read has storage record, if there being this IC-card in memory module
Information, then count bar corresponding to this IC card information now by attendance record, completes work attendance, and work attendance information is passed through display module
Display, simultaneously by all attendance records of the IC card information of this accumulative student, utilizes the achievement computation rule pre-entered,
Calculate the usual performance that this IC-card holder is corresponding；If the IC card information read finds correspondence the most in a storage module
Storage record, then this IC-card is for use first, this IC card information is write memory module and stores；
(4) repeat step (2) and (3), wait that next bit IC-card holder swipes the card, circulate and so forth, complete all to learn
Raw work attendance and examination result work.
Above-mentioned steps (1) carries out the self-inspection of system after powered up, CPU detects each module the most normal
Connecting and correctly work, afterwards, entered function selects interface.
In a storage module, the information of each IC-card holder takies solid for above-mentioned IC card information and attendance record Coutinuous store
Fixed byte, wherein IC card information accounts for 4 bytes, and attendance record takies remaining byte；Each byte packet position Han eight-digit binary number,
With 0, each binary digit represents that work attendance is not arrived, 1 represents that work attendance is arrived, and each byte preserves No. 8 attendance records.
Compared with prior art, RFID based on the all-in-one campus card portable check class attendance system and method tool of the present invention
Have the advantage that
1) IC-card holder's register flow path of abandoning tradition attendance recorder, the present invention is by tradition attendance recorder craft IC-card holder
Registration is changed into automatic IC-card holder registration, and when every classmate's per term swipes the card for the first time, system is automatically performed its campus card
Registration, is greatly simplified use step, is called the roll in current classroom and is converted into simple button several times, and remaining work is controlled system by device
System is automatically performed.
2) special efficient data processing algorithm, this project is that University classroom work attendance applies the process of this middle and small scale data to set
Count tailor-made algorithm, on the premise of ensureing data-handling efficiency, 32 MCU that tradition attendance recorder uses are reduced to 8
MCU, greatly reduces hardware resource cost, not only contributes to low-carbon environment-friendly, and reduces and promote the use of cost.
3) automatically examination result, usual performance according to student attendance situation every student of programming count during the end of term, saves
Teacher manually computes, it is achieved work attendance is integrated with examination result, omnidistance responsible work attendance work.
4) Campus Smart Card and radio frequency identification (RFID) technology are combined by the present invention, make full use of campus card resource, subtract
Light teacher's work attendance burden, this system bulk is small and exquisite in addition, easy to use, teacher carry with, front or the most rearmounted at school
In doorway, classroom, student swipes the card and passes through, and preferably supervises student to attend class on time.
Accompanying drawing explanation
Fig. 1 is the portable check class attendance system architecture diagram of RFID based on all-in-one campus card.
Fig. 2 is that Work attendance method performs flow chart.
Detailed description of the invention
In conjunction with drawings and Examples, technical scheme is further described.
Embodiment 1
Seeing Fig. 1, the portable check class attendance system of RFID based on all-in-one campus card of the present embodiment includes central authorities' process
Unit 6, power module 8, display module 4, input module 7, indicating module 1, memory module 5, RFID read-write module 3 and low electricity
Pressure detection module 2.
CPU 6 uses STC12C5A60S2 single-chip microcomputer, P0.0～P0.7 and P1.0～P1.2 of this single-chip microcomputer
Pin is connected with display module 4, and the display module 4 of the present embodiment is to use 32 character liquid crystal display screens, for display system
Status information, attendance record, final grade；P1.3～1.7 pins of single-chip microcomputer are connected with RFID read-write module 3, this RFID
Module for reading and writing 3 is made up of RC522 chip and external minimum system circuit, antenna, coordinates antenna to send wireless signal, reads
Corresponding card number is also stored in memory module 5 after CPU 6 processes by IC card information；The P2.0 of single-chip microcomputer～
P2.7 pin is connected with input module 7, and this input module 7 uses the matrix keyboard of 4*4, can be to the selection of singlechip feedbsck function
Information.P3.5～the P3.7 pin of single-chip microcomputer is connected with memory module 5, and this memory module 5 is that the EEPROM using 64KBit deposits
Storage chip, includes IC card numbers and the attendance record of student information for storage；The P3.2 pin of single-chip microcomputer is examined with low-voltage
Surveying module 2 to connect, this low voltage detecting module 2 uses Zener diode, audion and the common circuit of electric capacity composition, is used for
Detection supply voltage, is sent low voltage signal to CPU 6 when supply voltage is low and is reported to the police by indicating module 1.Should
Low voltage detecting module 2 is connected with indicating module 1 by wire, and it is double that this indicating module 1 uses NE555P timer chip to constitute
Steady-state circuit, is used for indicating working state of system, low-voltage to report to the police.
Above-mentioned CPU 6, display module 4, memory module 5 and RFID read-write module 3 all use 5V voltage to supply
Electricity.
Above-mentioned low voltage detecting module 2 and indicating module 1 use 9V layer-built battery to power.
The CPU 6 of the present embodiment sends to each module after receiving the function selecting of input module 7 and performs order,
And compare with the IC card information in memory module 5 according to the IC card information of RFID read-write module 3 reading, it is judged that read
Whether IC card information has storage record in memory module 5, then attendance record counts bar corresponding to this IC-card number now, complete
Work attendance, and work attendance information is shown by display module 4 all work attendance information of the IC-card number simultaneously passing through this accumulative student,
Utilize achievement computation rule, calculate the usual performance of this student；If the IC card information read does not finds in memory module 5
Storage record, then assert that this IC-card number write memory module 5, for use first, is stored by this IC-card number；Meanwhile, these central authorities
Processing unit 6 receives the low-voltage alarm signal that low voltage detecting module 2 sends, and stops the work of whole system.
The Work attendance method realized by the above-mentioned portable check class attendance system of RFID based on all-in-one campus card, sees Fig. 2, tool
Body is realized by following steps:
(1) carry out the self-inspection of system after powered up, CPU 6 detect each module and the most normally connect and correct
Work, and in per term, system initializes and sets up in memory module 5 number of these 4 classes of A, B, C, D when the new term begins
According to storehouse, selecting function interface after start, function interface includes work attendance mode of operation or examination result pattern, and Checking on Work Attendance Mode is used every time
In check class attendance, examination result pattern calculates usual performance automatically for the end of term；
(2) utilizing input module 7 to select the class B of correspondence, CPU 6 sends card seeking to RFID read-write module 3
Whether instruction, detecting current RFID read-write module 3 antenna front has whether IC-card and current IC-card are the cards that can distinguish
Type, if detecting, there is card and readable in current antenna front, then CPU 6 sends to rfid interrogator and reads IC-card number
Instruction, is judged the correctness of the IC card information obtained by CPU 6 after reading successfully；If IC card information is correct,
The most temporarily preserve this IC card information；Otherwise re-execute card seeking instruction；
(3) IC card information that CPU 6 reads according to RFID read-write module 3 and the IC-card letter in memory module 5
Breath compares, it is judged that whether the IC card information read has storage record in memory module 5, if having in memory module 5
This IC card information, then count bar corresponding to this IC card information now by attendance record, IC card information and attendance record Coutinuous store
In memory module 5, the information of each IC-card holder takies fixing byte, and wherein IC card information accounts for 4 bytes, and work attendance is remembered
Record takies remaining byte, each byte packet position Han eight-digit binary number, with 0, each binary digit represents that work attendance is not arrived, and 1 represents work attendance
Arriving, each byte preserves No. 8 attendance records, work attendance information is shown by display module 4 after completing work attendance, simultaneously by tired
All attendance records of the IC card information of this student of meter, utilize the achievement computation rule pre-entered, calculate this IC-card and hold
The usual performance that the person of having is corresponding；If the IC card information read does not finds storage record in memory module 5, then headed by this IC-card
Secondary use, stores this IC card information write memory module 5；
(4) repeat step (2) and (3), wait that next bit IC-card holder swipes the card, with this reciprocation cycle, complete all to learn
The work attendance of life, statistical work.
Above-mentioned CPU 6 can also use STC15F2K16S2 single-chip microcomputer to realize, in above-described embodiment not
The modular circuit described in detail is all can be realized by custom circuit, for low voltage detecting module 2, RFID read-write module 3, instruction
Module 1 grade can also be replaced by other circuit of the function being capable of the present invention, it is possible to realizes the function of the present invention,
It is not limited only to above-mentioned embodiment.
Claims (6)
1. the portable check class attendance system of RFID based on all-in-one campus card, it is characterised in that: include power module (8),
Input module (7) and the CPU (6) being connected with power module (8), display module (4), indicating module (1), deposit
Storage module (5), RFID read-write module (3) and low voltage detecting module (2)；
CPU (6), by wire respectively with display module (4), input module (7), indicating module (1), storage mould
Block (5), RFID read-write module (3) and low voltage detecting module (2) connect, and the function selecting receiving input module (7) is backward
Each module sends and performs order, and the IC card information read according to RFID read-write module (3) is believed with the IC-card in memory module (5)
Breath compares, it is judged that the IC card information read has storage record in memory module (5), then attendance record counts this IC
Bar corresponding to card number now, completes work attendance, and by work attendance information by display module (4) display simultaneously by this accumulative student
All work attendance information of IC-card number, utilize achievement computation rule, calculate the usual performance of this student；If the IC-card read
Information does not finds storage record in memory module (5), then assert that the write of this IC-card number, for use first, is stored by this IC-card number
Module (5) stores；Meanwhile, this CPU (6) receives the low-voltage alarm signal that low voltage detecting module (2) sends
Number, and stop the work of whole system；
Display module (4), its signal input part is connected with the signal output part of CPU (6), for display system
Status information, attendance record, final grade, use 32 character liquid crystal display screens；
Input module (7), is matrix keyboard, by input module (7) to the selection of CPU (6) feedback function；
Low voltage detecting module (2), is used for detecting supply voltage, sends low electricity to CPU (6) when supply voltage is low
Pressure signal is also reported to the police by indicating module (1)；
Indicating module (1), is connected with low voltage detecting module (2), is used for indicating working state of system, low-voltage to report to the police；
Memory module (5), for storing IC card information and the attendance record that student holds；
RFID read-write module (3), built-in oriented IC-card is launched built-in aerial and the control chip of signal, is coordinated antenna to send wireless
Signal, reads IC card information and is stored in memory module (5) by corresponding card number after CPU (6) processes.
The portable check class attendance system of RFID based on all-in-one campus card the most according to claim 1, it is characterised in that: institute
State CPU (6) and use STC12C5A60S2 single-chip microcomputer or STC15F2K16S2.
The portable check class attendance system of RFID based on all-in-one campus card the most according to claim 1, it is characterised in that: institute
Stating indicating module (1) uses NE555P timer chip to constitute bistable circuit.
4. the work attendance side realized by the portable check class attendance system of RFID based on all-in-one campus card of claim 1
Method, it is characterised in that comprise the steps of:
(1) in per term, system initializes and sets up in memory module (5) data base of multiple class when the new term begins,
Selecting function interface after start every time, select work attendance mode of operation or examination result pattern, Checking on Work Attendance Mode is used for check class attendance, system
Meter pattern calculates usual performance automatically for the end of term；
(2) utilizing input module (7) to select corresponding class, CPU (6) sends card seeking to RFID read-write module (3)
Whether instruction, detecting current RFID read-write module (3) antenna front has whether IC-card and current IC-card can be distinguished
Card Type, if detecting, there is card and readable in current antenna front, then CPU (6) sends to rfid interrogator and reads IC
Card number instructs, and is judged the correctness of the IC card information obtained after reading successfully by CPU (6)；If IC card information is correct
Errorless, the most temporarily preserve this IC card information；
(3) IC card information that CPU (6) reads according to RFID read-write module (3) and the IC-card in memory module (5)
Information compares, it is judged that whether the IC card information read has storage record in memory module (5), if memory module (5)
In have this IC card information, then attendance record is counted bar corresponding to this IC card information now, completes work attendance, and by work attendance information
Being shown by display module (4), simultaneously by all attendance records of the IC card information of this accumulative student, utilization pre-enters
Achievement computation rule, calculate the usual performance that this IC-card holder is corresponding；If the IC card information read is not in storage
Module (5) finds correspondence storage record, then this IC-card is for use first, by this IC card information write memory module (5) and
Storage；
(4) repeat step (2) and (3), wait that next bit IC-card holder swipes the card, circulate and so forth, complete whole student's
Work attendance and examination result work.
Work attendance method the most according to claim 4, it is characterised in that described step (1) is carried out after powered up system from
Inspection, is detected each module by CPU (6) and the most normally connects and correctly work, and afterwards, entered function selects interface.
Work attendance method the most according to claim 4, it is characterised in that described IC card information and attendance record are continuously stored in
In memory module (5), the information of each IC-card holder takies fixing byte, and wherein IC card information accounts for 4 bytes, and work attendance is remembered
Record takies remaining byte；Each byte packet position Han eight-digit binary number, with 0, each binary digit represents that work attendance is not arrived, 1 represents work attendance
Arriving, each byte preserves No. 8 attendance records.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106934870A (en) * | 2017-02-17 | 2017-07-07 | 安徽金猫数字科技有限公司 | A kind of voice attendance checking system |
| CN112905606A (en) * | 2021-05-07 | 2021-06-04 | 中建电子商务有限责任公司 | Attendance identification algorithm based on bitmap |
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| CN104185050A (en) * | 2014-07-30 | 2014-12-03 | 哈尔滨工业大学深圳研究生院 | OTT television based intelligent remote control system and control method thereof |
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| CN106934870A (en) * | 2017-02-17 | 2017-07-07 | 安徽金猫数字科技有限公司 | A kind of voice attendance checking system |
| CN112905606A (en) * | 2021-05-07 | 2021-06-04 | 中建电子商务有限责任公司 | Attendance identification algorithm based on bitmap |
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Application publication date: 20161116 |