CN109949432A - A kind of student's special electronic attendance system and method based on radio-frequency technique - Google Patents
A kind of student's special electronic attendance system and method based on radio-frequency technique Download PDFInfo
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Abstract
The invention belongs to student attendance technical fields, disclose a kind of student's special electronic attendance system and method based on radio-frequency technique, system includes: that radio-frequency card identification module, data acquisition module, central control module, attendance data processing module, statistical module, record check module, data memory module, reminding module, display module.Information in campus card RFID label tag is divided into without password by radio-frequency card identification module, needs password authentification, password is needed to add three Permission Levels of appearance or fingerprint authentication by the present invention; password authentification is not necessarily in some occasions; some occasions need to reinforce password authentification; while being that campus card keeps this convenient and efficient advantage, the privacy and interests of card master are further protected；Meanwhile will not be led to system abnormity because of file is small by attendance data processing module, guarantee the normal operation of system. more；Improve the query performance of attendance data.
Description
Technical field
The invention belongs to student attendance technical field more particularly to a kind of student's special electronic attendances based on radio-frequency technique
System and method.
Background technique
With the rapid development of modernization construction, along with the fast development of modern science and technology, college teaching system changes
The deep development of leather, major universities and colleges, which gradually set up, has student resource curricula-variable, automatic curriculum scheduling, automatic testing arrangement, autonomous selection specially
Educational administration management system with the characteristics of industry, elective, experiment reservation, achievement audit, credit system etc., be mainly used for management student from
Enter to acquire the overall process of graduation, including student status management, teaching programme, give a course/row's class, curricula-variable, score management, experiment management, finish
Multiple links such as industry design；Attendance checking system is built, grasps really attending class situation for Faculty and Students in time, classroom uses and becomes
The problems such as student caused by emotionally condition, and interim tune class is absent from school provides higher better service support for teaching.It is examined in educational administration
The function of electronics class board is extended in the identity recognition terminal frequently used, what the replacement of solution class's board, classroom used can not lead in time
It accuses, cumbersome school timetable printing and distribution, the safety management in vacation school classroom, year after year printing and stickup of examination hall information etc.
The problems such as.However, the authentication recognition methods for the campus card that existing student's special electronic attendance uses is fairly simple, regardless of needing
Password will be inputted by not needing progress cipher authentication, and authentication information is not detailed enough, so many students' unions allow classmate to hold
The campus card of oneself takes one's test for oneself or attendance；Meanwhile existing attendance data be well over the limitation of system and cause be
System is abnormal, and attendance data query performance is poor.
In school, teaching management work is very important a job, it is responsible for the daily teaching arrangement of entire school,
Student status management of student etc..It is all manually to be operated in the past.As school size expands, the management workload in Educational Affairs Office is big
It is big to aggravate.With the development of computer application, educational administration worker wants to transfer to calculate by most of cumbersome work in a hurry
Machine processing, to mitigate artificial pressure and improve working efficiency, and the universal production for more accelerating educational administration management system of computer
It is raw.
When using computer teaching management educational administration, school, due to dividing many institutes in school again, it is arranged again in institute more
Not, excessive branch will increase total Educational Affairs Office of school by being managed in single school's educational administration management system for a system
Workload is easy to appear some mistakes.How educational administration's data management of each institute to be managed independently by each institute, and with
The total teaching management primary server of school carries out information interchange, becomes problem to be solved.
In conclusion problem of the existing technology is:
(1) the authentication recognition methods for the campus card that existing student's special electronic attendance uses is fairly simple, regardless of needing
Password will be inputted by not needing progress cipher authentication, and authentication information is not detailed enough, so many students' unions allow classmate to hold
The campus card of oneself takes one's test for oneself or attendance；RFID system often will appear the collision problem of internal system, cause system
It is not sufficiently stable.
(2) existing attendance data is well over the limitation of system and leads to system abnormity, and attendance data query performance is poor, mesh
The preceding attendance storage system safety used is lower, it is easy to be broken into and be modified or deleted, cause losing for data
It becomes estranged and stores the inaccuracy of information.
(3) regulation module in center used at present needs to handle multiple nodes, and the intensity of load of server is larger,
It is cumbersome to the realization of scheduling of resource task, inconvenience is brought to the analysis of subsequent data.
Summary of the invention
In view of the problems of the existing technology, student's special electronic attendance based on radio-frequency technique that the present invention provides a kind of
System and method.
The invention is realized in this way a kind of student's special electronic attendance checking system control method based on radio-frequency technique, packet
It includes:
Step 1: reader identification campus card RFID label tag signal is utilized by radio-frequency card identification module；It is adopted by data
Collection module is converted into digital information for campus card RFID label tag signal is acquired using card reader；Radio-frequency card identification module is using random
It postpones algorithm and identifies campus card RFID label tag signal, randem delay algorithm are as follows:
The when a length of fixed length T for completing once to communicate if not colliding0, T0=TA+TS, wherein TAFor for anti-collision algorithm
Duration, TSFor other communication times；
Input load G is T0The average arrival number of radio-frequency card in duration；
Handling capacity S is T0Radio-frequency card successfully completes the average time of communication in duration；
Average response time τ is certain a period of time interior all radio-frequency cards for completing communication mean residence time in system；
Input load G can be greater than 1, and when certain input load is excessive, system will be in an unsure state, handling capacity
It reduces instead, and S≤1, under the limiting case of S=1, radio-frequency card identifies completion one by one, it is clear that G >=S,
It in the state of stabilization, communicates successfully, handling capacity S and the relationship of input load G are
Assuming that the number of average retransmission is indicated with Nr, then average response time
τ=T0+T0/2+Nr·[(K/2)·TA+T0/ 2]=T0{1.5+Nr·[(K/2)·TA/T0+1/2)]}；
When K is very big, Nr is unrelated with K, then
1+Nr=G/S；
Step 2: central control module is dispatched attendance data processing module and is carried out using data processing software to attendance data
Arrangement processing；It is counted using data processing software to each student attendance data by statistical module, generates each student
Spot-check the Attendance Sheet in period；Check that module inquires student attendance recording data information using search program by record；
Data processing software carries out in arrangement processing attendance data, receives attendance data and safeguards more new command；
Subscriber identity information is obtained according to the maintenance more new command and needs to safeguard the dimension table of the dimension table updated
Information；
According to the pre-set dimension table configuration information of the dimension table acquisition of information；Wherein, the dimension table matches confidence
With the purpose database that source database, the dimension table needs where the dimension table that needs to safeguard and update are synchronous in breath
And dimension table operation permission information；
According to the subscriber identity information and the dimension table operation permission information, judge that the subscriber identity information is
It is no to meet the dimension table operation permission information；
If the subscriber identity information meets the dimension table operation permission information, need to safeguard the dimension updated to described
Table is updated operation；
The dimension table being updated after operating is synchronized to the purpose database；
The dimension table operation permission information includes: the User Identity with dimension table operating right；
It is described to judge whether the subscriber identity information meets the dimension table operation permission information, comprising:
Judge the subscriber identity information whether in the User Identity with dimension table operating right；
The maintenance more new command is to increase content instruction, change content instruction or deletion content instruction；
Before being updated operation to the dimension table for needing maintenance to update, comprising:
It according to the maintenance more new command, determines and needs to safeguard the field updated, and get the needs maintenance and update
Field identification；
Pre-set field configuration information is got according to the field identification and the dimension table configuration information；Its
In, the field configuration information includes the field contents ordering rule, field ordering information, field restrictive condition of the field；
It is described to need to safeguard that the dimension table updated carries out more to described if the maintenance more new command is to increase content instruction
New operation, comprising:
Obtain the corresponding batch data content of the increase content instruction；
According to the batch data content, increase field contents in one or more fields in the dimension table；
According to the field contents ordering rule, the field contents are ranked up；
According to the field ordering information, each field in dimension table is ranked up；
It is described to need to safeguard that the dimension table updated carries out more to described if the maintenance more new command is change content instruction
New operation, comprising:
Obtain the corresponding batch data content of the change content instruction；
According to the batch data content, field contents are changed in one or more fields in the dimension table；
It is described to need to safeguard that the dimension table updated carries out more to described if the maintenance more new command is to delete content instruction
New operation, comprising:
Field contents are deleted in one or more fields in the dimension table；
Further include:
Judge whether each field after the increase field contents, change field contents or deletion field contents meets
The field restrictive condition；
If there is field to be unsatisfactory for the field restrictive condition, prompt information is generated；The prompt information is for prompting to be discontented with
The Field Count of the foot field restrictive condition, and prompt the field relevant information for being unsatisfactory for the field restrictive condition；The word
Section relevant information includes the field identification or field name of the field；
Step 3: storage operation is carried out to student attendance data using memory by data memory module；Pass through prompting
Data absent from duty and warning message are sent to student corresponding with student's student number according to student's student number using push products by module
In client；
Step 4: the attendance data information of student is shown using display screen by display module.
Further, in step 3；Data memory module carries out encryption storage to storing data using data encryption algorithm, adds
Close algorithm are as follows:
Be arranged represent the algebraci closed field of domain K asK*=K/ { 0 } is multiplicative group, and component is the non-zero entry in K
Element, if algebraci closed fieldAffine plane beThat is:Then
Known algebraci closed fieldOn affine plane curve be by irreducible polynomialIn zero point
The set of composition, i.e.,
Known C is affine plane curve, P=(x, a y) point on curve thus, if the conditions are met
Then P=(x, y) is the singular point on C, then curve C is singular curve, on the contrary, if the arbitrary point on curve is equal
It is not able to satisfy above-mentioned condition, this curve is nonsingular curve；
If E meets following equations
E:y2+a1+xy+a3Y=x3+a2x+a4x+a6
Assuming that P=(x, y) is a point on E, and meet x, y ∈ K, then P is the rational point of K；
The point group E (K) being then made of the point on elliptic curve can be described with following formula:
E (K)={ (x, y): x, y ∈ K, E (x, y)=0 } ∪ { 0 }
The discrimination formula of elliptic curve E can be described as follows in network storage:
In formula, only as δ=0, which is singular curve；
When E carries out isomorphism, property is constant, therefore can use its simple types and calculated, and as standard type is encrypted
Journey is respectively depicted as:
If Char (K) ≠ 2,3: y2=x3+a4x+a6
If Char (K)=2, and the y of j ≠ 02+ xy=x3+a2x2+a6
If Char (K)=2, and j=0 y2+a3Y=x3+a4x+a6
If Char (K)=3, and the y of j ≠ 02=x3+x2+a6
If Char (K)=3, and the y of j ≠ 02=x3+x2+a6。
Further, radio-frequency card identification module recognition methods includes:
(1) holder's personal information is inputted into RFID system principal database, and information privacy grading is set respectively
Password is set, then will be in reservoir of the personal information by recognizer write-in campus card RFID label tag；
(2) after campus card after holder holds information storage enters recognizer induction range, recognizer is sent out to campus card
Card image is read in the request of inspection electrical verification magnetic wave, and the demodulation of campus card RFID chip examines electromagnetic wave to receive request and reads card image
Instruction after, by card image be attached to RFID chip reflection inspection electromagnetic wave in, recognizer receives reflected electromagnetism
By demodulation recognition card image after wave, and the information of itself and RFID system principal database is compared into verification, if verifying
Being sent by then recognizer to campus card examines electromagnetic wave request to read personal information；If verification does not pass through, RFID system master
Machine record sincerity, which records and controls alarm device, to be sounded an alarm；
(3) after the demodulation of campus card RFID chip examines electromagnetic wave to receive the instruction that personal information is read in request, if recognizer
The personal information that request is read does not need password, then RFID chip adds recognizer in the inspection electromagnetic wave of reflection and requests to read
The personal information taken；If the personal information that recognizer request is read needs password or appearance, fingerprint comparative certification, RFID chip
The information that additional request is verified in electromagnetic wave is examined in reflection；
(4) recognizer distinguishes the additional information of RFID chip by demodulation after receiving reflected electromagnetic wave, if reading
To required personal information, then the information of itself and RFID system principal database is compared into verification；If reading request
Password or appearance, the checking request of fingerprint are verified, then recognizer sends checking request to RFID system host；
(5) after RFID system host receives checking request, control is sent to user terminal or video camera, fingerprint acquisition device
The information of itself and RFID system host data base is simultaneously compared verification by signal, acquisition password or head portrait, finger print information；
(6) if all comparison is errorless for the information of required comparison verification, verification passes through, and identification process terminates；If required right
Have more than one than the information of verification and the information of RFID system host data base is inconsistent, then verifies and do not pass through, RFID system
Host is written into sincere record and controls alarm device and sounds an alarm；
The personal information includes photo, name, gender, department, profession, class, student number, ID card No./attendance note
Record, test result and cheating situation sincerity record
Further, attendance data processing module processing method includes:
S1, attendance data library system are established with one day attendance data for time dimension, preset quantity for storing
Attendance data file, the corresponding reduce node of each attendance data file, and different attendance data files correspond to different
Reduce node；
S2 evenly distributes daily attendance data at random to the reduce node of preset quantity, and by preset quantity
Each reduce node will be under corresponding time dimension in the corresponding attendance data file of the attendance data that received insertion；
S3 will be described after receiving the attendance data inquiry request including time dimension information and query object information
Attendance data inquiry request is distributed to each reduce node, with by each reduce node from the corresponding time dimension of attendance data file
The attendance data of the query object information is inquired in attendance data under degree.
Further, step S2 includes:
Daily attendance data is evenly divided into the attendance data subset of preset quantity at random；
The summation of the size of an attendance data subset and the size of an attendance data file is obtained, described in analysis
Whether summation is less than or equal to preset threshold；
If the summation is less than or equal to the preset threshold, each attendance data subset is randomly assigned to present count
The reduce node of amount, and by each reduce node that the attendance data insertion of the attendance data subset received is corresponding
In attendance data file under corresponding time dimension；
If the summation is greater than the preset threshold, prompting message is sent to scheduled terminal, is increased with reminding
The quantity of reduce node simultaneously redistributes attendance data to reduce node；Or the automatic quantity for increasing reduce node,
To redistribute attendance data to reduce node.
Another object of the present invention is to provide student's special electronic attendance checking system described in a kind of realize based on radio-frequency technique
The computer program of control method.
Another object of the present invention is to provide a kind of terminal, and it is described based on radio-frequency technique that the terminal at least carries realization
The controller of student's special electronic attendance checking system control method.
Another object of the present invention is to provide a kind of computer readable storage medium, including instruction, when its on computers
When operation, so that computer executes student's special electronic attendance checking system control method based on radio-frequency technique.
Another object of the present invention is to provide student's special electronic attendance checking system based on radio-frequency technique described in a kind of implementation
Student's special electronic attendance checking system based on radio-frequency technique of control method, student's special electronic based on radio-frequency technique are examined
Diligent system includes:
Radio-frequency card identification module, connect with data acquisition module, for being believed by reader identification campus card RFID label tag
Number；
Data acquisition module is connect with radio-frequency card identification module, central control module, for will acquire school by card reader
Garden card RFID label tag signal is converted into digital information；
Central control module, with radio-frequency card identification module, data acquisition module, attendance data processing module, statistical module,
Record checks module, data memory module, reminding module, display module connection, for controlling modules just by single-chip microcontroller
Often work；
Attendance data processing module, connect with central control module, for by data processing software to attendance data into
Row arrangement processing；
Statistical module is connect with central control module, for by data processing software to each student attendance data into
Row statistics generates the Attendance Sheet that each student spot-check the period；
Record checks module, connect with central control module, records data for inquiring student attendance by search program
Information；
Data memory module is connect with central control module, for being stored by memory to student attendance data
Operation；
Reminding module is connect with central control module, for by push products according to student's student number by data absent from duty and
Warning message is sent in student client corresponding with student's student number；
Display module is connect with central control module, for showing the attendance data information of student by display screen.
Another object of the present invention is to a kind of student attendance equipment, the student attendance equipment at least carries the base
In student's special electronic attendance checking system of radio-frequency technique.
Advantages of the present invention and good effect are as follows:
(1) present invention is verified by radio-frequency card identification module using double-point information, is first verified card image, is effectively prevented puppet
It makes card, report the loss card, securely and reliably, then verify personal information, confirmation is that card master holds card, effectively prevent privacy leakage；It is a verifying
When people's information, in addition to verifying the conventional informations such as traditional name, gender, the photo of card master can be also verified, to ensure being card
Master holds card in person, further enhances the reliability of this method；Radio-frequency card identification module is realized using randem delay algorithm
The anticollision problem of RFID system, improves the stability of system.
(2) security classification classifying system is used, the information in campus card RFID label tag is divided into without password, needs password
It verifies, password is needed to add three Permission Levels of appearance or fingerprint authentication, be not necessarily to password authentification in some occasions, some occasions need
Reinforce password authentification, while being that campus card keeps this convenient and efficient advantage, further protects the privacy and interests of card master；
Attendance data file is created to store attendance data by attendance data processing module, and makes each attendance data file pair
A reduce node is answered, then attendance data library system evenly distributes daily attendance data at random gives reduce node, most
Corresponding time dimension in the corresponding attendance data file of the attendance data insertion for being eventually assigned to itself by reduce node
Under, attendance data library of the present invention system stores attendance data without using the dynamic partition of Hive table, therefore will not generate Hive table
The corresponding file of bottom guarantee the normal operation of system to will not lead to system abnormity because file is small more；It will be daily
Attendance data evenly distributed at random to the reduce node of preset quantity, every reduce node only handles examining corresponding to it
The attendance data being inserted into diligent data file, and the data volume of every reduce node processing is in the same size, so that attendance number
According to being evenly distributed, the query performance of attendance data is improved.
(3) regulation module in center uses LBFA algorithm, greatly reduces the complexity to the processing of multiple node parameters, meets
Real time resources scheduler task of the central regulation module under magnanimity node condition, analyzed for subsequent data provide it is advantageous
It supports.
Data processing software of the present invention carries out in arrangement processing attendance data, receives attendance data and safeguards more new command；
Subscriber identity information is obtained according to the maintenance more new command and needs to safeguard the dimension table of the dimension table updated
Information；
According to the pre-set dimension table configuration information of the dimension table acquisition of information；Wherein, the dimension table matches confidence
With the purpose database that source database, the dimension table needs where the dimension table that needs to safeguard and update are synchronous in breath
And dimension table operation permission information；
According to the subscriber identity information and the dimension table operation permission information, judge that the subscriber identity information is
It is no to meet the dimension table operation permission information；
If the subscriber identity information meets the dimension table operation permission information, need to safeguard the dimension updated to described
Table is updated operation；
The dimension table being updated after operating is synchronized to the purpose database；It can get accurately processing information, be
It is postorder that offer guarantee is provided.
Detailed description of the invention
Fig. 1 is student's special electronic attendance checking system structural block diagram provided in an embodiment of the present invention based on radio-frequency technique.
In figure: 1, radio-frequency card identification module；2, data acquisition module；3, central control module；4, attendance data handles mould
Block；5, statistical module；6, record checks module；7, data memory module；8, reminding module；9, display module.
Fig. 2 is student's special electronic attendance checking system control method process provided in an embodiment of the present invention based on radio-frequency technique
Figure.
Specific embodiment
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and cooperate attached drawing
Detailed description are as follows.
Structure of the invention is explained in detail with reference to the accompanying drawing.
As shown in Figure 1, student's special electronic attendance checking system provided by the invention based on radio-frequency technique includes: that radio-frequency card is known
Other module 1, data acquisition module 2, central control module 3, attendance data processing module 4, statistical module 5, record check module
6, data memory module 7, reminding module 8, display module 9.
Radio-frequency card identification module 1 is connect with data acquisition module 2, for passing through reader identification campus card RFID label tag
Signal；
Data acquisition module 2 is connect with radio-frequency card identification module 1, central control module 3, for that will be adopted by card reader
Collection campus card RFID label tag signal is converted into digital information；
Central control module 3, with radio-frequency card identification module 1, data acquisition module 2, attendance data processing module 4, statistics
Module 5, record check that module 6, data memory module 7, reminding module 8, display module 9 connect, for being controlled by single-chip microcontroller
Modules work normally；
Attendance data processing module 4 is connect with central control module 3, for passing through data processing software to attendance data
Carry out arrangement processing；
Statistical module 5 is connect with central control module 3, for passing through data processing software to each student attendance data
It is counted, generates the Attendance Sheet that each student spot-check the period；
Record checks module 6, connect with central control module 3, records number for inquiring student attendance by search program
It is believed that breath；
Data memory module 7 is connect with central control module 3, for being deposited by memory to student attendance data
Storage operation；
Reminding module 8 is connect with central control module 3, for by push products according to student's student number by data absent from duty
It is sent in student client corresponding with student's student number with warning message；
Display module 9 is connect with central control module 3, for showing the attendance data information of student by display screen.
1 recognition methods of radio-frequency card identification module provided by the invention is as follows:
(1) holder's personal information is inputted into RFID system principal database, and information privacy grading is set respectively
Password is set, then will be in reservoir of the personal information by recognizer write-in campus card RFID label tag；
(2) after campus card after holder holds information storage enters recognizer induction range, recognizer is sent out to campus card
Card image is read in the request of inspection electrical verification magnetic wave, and the demodulation of campus card RFID chip examines electromagnetic wave to receive request and reads card image
Instruction after, by card image be attached to RFID chip reflection inspection electromagnetic wave in, recognizer receives reflected electromagnetism
By demodulation recognition card image after wave, and the information of itself and RFID system principal database is compared into verification, if verifying
Being sent by then recognizer to campus card examines electromagnetic wave request to read personal information；If verification does not pass through, RFID system master
Machine record sincerity, which records and controls alarm device, to be sounded an alarm；
(3) after the demodulation of campus card RFID chip examines electromagnetic wave to receive the instruction that personal information is read in request, if recognizer
The personal information that request is read does not need password, then RFID chip adds recognizer in the inspection electromagnetic wave of reflection and requests to read
The personal information taken；If the personal information that recognizer request is read needs password or appearance, fingerprint comparative certification, RFID chip
The information that additional request is verified in electromagnetic wave is examined in reflection；
(4) recognizer distinguishes the additional information of RFID chip by demodulation after receiving reflected electromagnetic wave, if reading
To required personal information, then the information of itself and RFID system principal database is compared into verification；If reading request
Password or appearance, the checking request of fingerprint are verified, then recognizer sends checking request to RFID system host；
(5) after RFID system host receives checking request, control is sent to user terminal or video camera, fingerprint acquisition device
The information of itself and RFID system host data base is simultaneously compared verification by signal, acquisition password or head portrait, finger print information；
(6) if all comparison is errorless for the information of required comparison verification, verification passes through, and identification process terminates；If required right
Have more than one than the information of verification and the information of RFID system host data base is inconsistent, then verifies and do not pass through, RFID system
Host is written into sincere record and controls alarm device and sounds an alarm.
Personal information provided by the invention includes photo, name, gender, department, profession, class, student number, identification card number
Code/attendance record, test result and cheating situation sincerity record
4 processing method of attendance data processing module provided by the invention is as follows:
S1, attendance data library system are established with one day attendance data for time dimension, preset quantity for storing
Attendance data file, the corresponding reduce node of each attendance data file, and different attendance data files correspond to different
Reduce node；
S2 evenly distributes daily attendance data at random to the reduce node of preset quantity, and by preset quantity
Each reduce node will be under corresponding time dimension in the corresponding attendance data file of the attendance data that received insertion；
S3 will be described after receiving the attendance data inquiry request including time dimension information and query object information
Attendance data inquiry request is distributed to each reduce node, with by each reduce node from the corresponding time dimension of attendance data file
The attendance data of the query object information is inquired in attendance data under degree.
Step S2 provided by the invention includes:
Daily attendance data is evenly divided into the attendance data subset of preset quantity at random；
The summation of the size of an attendance data subset and the size of an attendance data file is obtained, described in analysis
Whether summation is less than or equal to preset threshold；
If the summation is less than or equal to the preset threshold, each attendance data subset is randomly assigned to present count
The reduce node of amount, and by each reduce node that the attendance data insertion of the attendance data subset received is corresponding
In attendance data file under corresponding time dimension；
If the summation is greater than the preset threshold, prompting message is sent to scheduled terminal, is increased with reminding
The quantity of reduce node simultaneously redistributes attendance data to reduce node；Or the automatic quantity for increasing reduce node,
To redistribute attendance data to reduce node.
Such as Fig. 2, student's special electronic attendance checking system control method provided in an embodiment of the present invention based on radio-frequency technique, packet
It includes:
S101: reader identification campus card RFID label tag signal is utilized by radio-frequency card identification module；It is acquired by data
Module is converted into digital information for campus card RFID label tag signal is acquired using card reader；
S102: it is whole to attendance data progress using data processing software that central control module dispatches attendance data processing module
Reason processing；It is counted using data processing software to each student attendance data by statistical module, generates each student and take out
Look into the Attendance Sheet in period；Check that module inquires student attendance recording data information using search program by record；
S103: storage operation is carried out to student attendance data using memory by data memory module；By reminding mould
Data absent from duty and warning message are sent to student visitor corresponding with student's student number according to student's student number using push products by block
In the end of family；
S104: the attendance data information of student is shown using display screen by display module.
Below with reference to concrete analysis, the invention will be further described.
Student's special electronic attendance checking system control method provided in an embodiment of the present invention based on radio-frequency technique, comprising:
Step 1: reader identification campus card RFID label tag signal is utilized by radio-frequency card identification module；It is adopted by data
Collection module is converted into digital information for campus card RFID label tag signal is acquired using card reader；Radio-frequency card identification module is using random
It postpones algorithm and identifies campus card RFID label tag signal, randem delay algorithm are as follows:
The when a length of fixed length T for completing once to communicate if not colliding0, T0=TA+TS, wherein TAFor for anti-collision algorithm
Duration, TSFor other communication times；
Input load G is T0The average arrival number of radio-frequency card in duration；
Handling capacity S is T0Radio-frequency card successfully completes the average time of communication in duration；
Average response time τ is certain a period of time interior all radio-frequency cards for completing communication mean residence time in system；
Input load G can be greater than 1, and when certain input load is excessive, system will be in an unsure state, handling capacity
It reduces instead, and S≤1, under the limiting case of S=1, radio-frequency card identifies completion one by one, it is clear that G >=S,
It in the state of stabilization, communicates successfully, handling capacity S and the relationship of input load G are
Assuming that the number of average retransmission is indicated with Nr, then average response time
τ=T0+T0/2+Nr·[(K/2)·TA+T0/ 2]=T0{1.5+Nr·[(K/2)·TA/T0+1/2)]}；
When K is very big, Nr is unrelated with K, then
1+Nr=G/S；
Step 2: central control module is dispatched attendance data processing module and is carried out using data processing software to attendance data
Arrangement processing；It is counted using data processing software to each student attendance data by statistical module, generates each student
Spot-check the Attendance Sheet in period；Check that module inquires student attendance recording data information using search program by record；
Data processing software carries out in arrangement processing attendance data, receives attendance data and safeguards more new command；
Subscriber identity information is obtained according to the maintenance more new command and needs to safeguard the dimension table of the dimension table updated
Information；
According to the pre-set dimension table configuration information of the dimension table acquisition of information；Wherein, the dimension table matches confidence
With the purpose database that source database, the dimension table needs where the dimension table that needs to safeguard and update are synchronous in breath
And dimension table operation permission information；
According to the subscriber identity information and the dimension table operation permission information, judge that the subscriber identity information is
It is no to meet the dimension table operation permission information；
If the subscriber identity information meets the dimension table operation permission information, need to safeguard the dimension updated to described
Table is updated operation；
The dimension table being updated after operating is synchronized to the purpose database；
The dimension table operation permission information includes: the User Identity with dimension table operating right；
It is described to judge whether the subscriber identity information meets the dimension table operation permission information, comprising:
Judge the subscriber identity information whether in the User Identity with dimension table operating right；
The maintenance more new command is to increase content instruction, change content instruction or deletion content instruction；
Before being updated operation to the dimension table for needing maintenance to update, comprising:
It according to the maintenance more new command, determines and needs to safeguard the field updated, and get the needs maintenance and update
Field identification；
Pre-set field configuration information is got according to the field identification and the dimension table configuration information；Its
In, the field configuration information includes the field contents ordering rule, field ordering information, field restrictive condition of the field；
It is described to need to safeguard that the dimension table updated carries out more to described if the maintenance more new command is to increase content instruction
New operation, comprising:
Obtain the corresponding batch data content of the increase content instruction；
According to the batch data content, increase field contents in one or more fields in the dimension table；
According to the field contents ordering rule, the field contents are ranked up；
According to the field ordering information, each field in dimension table is ranked up；
It is described to need to safeguard that the dimension table updated carries out more to described if the maintenance more new command is change content instruction
New operation, comprising:
Obtain the corresponding batch data content of the change content instruction；
According to the batch data content, field contents are changed in one or more fields in the dimension table；
It is described to need to safeguard that the dimension table updated carries out more to described if the maintenance more new command is to delete content instruction
New operation, comprising:
Field contents are deleted in one or more fields in the dimension table；
Further include:
Judge whether each field after the increase field contents, change field contents or deletion field contents meets
The field restrictive condition；
If there is field to be unsatisfactory for the field restrictive condition, prompt information is generated；The prompt information is for prompting to be discontented with
The Field Count of the foot field restrictive condition, and prompt the field relevant information for being unsatisfactory for the field restrictive condition；The word
Section relevant information includes the field identification or field name of the field；
Step 3: storage operation is carried out to student attendance data using memory by data memory module；Pass through prompting
Data absent from duty and warning message are sent to student corresponding with student's student number according to student's student number using push products by module
In client；
Step 4: the attendance data information of student is shown using display screen by display module.
Data memory module provided in an embodiment of the present invention carries out encryption storage to storing data using data encryption algorithm,
Encryption Algorithm are as follows:
Be arranged represent the algebraci closed field of domain K asK*=K/ { 0 } is multiplicative group, and component is the non-zero entry in K
Element, if algebraci closed fieldAffine plane beThat is:Then
Known algebraci closed fieldOn affine plane curve be by irreducible polynomialIn zero point group
At set, i.e.,
Known C is affine plane curve, P=(x, a y) point on curve thus, if the conditions are met
Then P=(x, y) is the singular point on C, then curve C is singular curve, on the contrary, if the arbitrary point on curve is equal
It is not able to satisfy above-mentioned condition, this curve is nonsingular curve；
If E meets following equations
E:y2+a1+xy+a3Y=x3+a2x+a4x+a6
Assuming that P=(x, y) is a point on E, and meet x, y ∈ K, then P is the rational point of K；
The point group E (K) being then made of the point on elliptic curve can be described with following formula:
E (K)={ (x, y): x, y ∈ K, E (x, y)=0 } ∪ { 0 }
The discrimination formula of elliptic curve E can be described as follows in network storage:
In formula, only as δ=0, which is singular curve；
When E carries out isomorphism, property is constant, therefore can use its simple types and calculated, and as standard type is encrypted
Journey is respectively depicted as:
If Char (K) ≠ 2,3: y2=x3+a4x+a6
If Char (K)=2, and the y of j ≠ 02+ xy=x3+a2x2+a6
If Char (K)=2, and j=0 y2+a3Y=x3+a4x+a6
If Char (K)=3, and the y of j ≠ 02=x3+x2+a6
If Char (K)=3, and the y of j ≠ 02=x3+x2+a6。
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real
It is existing.When using entirely or partly realizing in the form of a computer program product, the computer program product include one or
Multiple computer instructions.When loading on computers or executing the computer program instructions, entirely or partly generate according to
Process described in the embodiment of the present invention or function.The computer can be general purpose computer, special purpose computer, computer network
Network or other programmable devices.The computer instruction may be stored in a computer readable storage medium, or from one
Computer readable storage medium is transmitted to another computer readable storage medium, for example, the computer instruction can be from one
A web-site, computer, server or data center pass through wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)
Or wireless (such as infrared, wireless, microwave etc.) mode is carried out to another web-site, computer, server or data center
Transmission).The computer-readable storage medium can be any usable medium or include one that computer can access
The data storage devices such as a or multiple usable mediums integrated server, data center.The usable medium can be magnetic Jie
Matter, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium (such as solid state hard disk Solid
State Disk (SSD)) etc..
The above is only the preferred embodiments of the present invention, and is not intended to limit the present invention in any form,
Any simple modification made to the above embodiment according to the technical essence of the invention, equivalent variations and modification, belong to
In the range of technical solution of the present invention.
Claims (10)
1. a kind of student's special electronic attendance checking system control method based on radio-frequency technique, which is characterized in that described to be based on radio frequency
Student's special electronic attendance checking system control method of technology includes:
Step 1: reader identification campus card RFID label tag signal is utilized by radio-frequency card identification module；Pass through data acquisition module
Block is converted into digital information for campus card RFID label tag signal is acquired using card reader；Radio-frequency card identification module is postponed using random
Algorithm identifies campus card RFID label tag signal, randem delay algorithm are as follows:
The when a length of fixed length T for completing once to communicate if not colliding0, T0=TA+TS, wherein TAFor for anti-collision algorithm when
It is long, TSFor other communication times；
Input load G is T0The average arrival number of radio-frequency card in duration；
Handling capacity S is T0Radio-frequency card successfully completes the average time of communication in duration；
Average response time τ is certain a period of time interior all radio-frequency cards for completing communication mean residence time in system；
Input load G can be greater than 1, and when certain input load is excessive, system will be in an unsure state, and handling capacity is instead
It reduces, and S≤1, under the limiting case of S=l, radio-frequency card identifies completion one by one, it is clear that G >=S, in stabilization
In the state of, it communicates successfully, handling capacity S and the relationship of input load G are
Assuming that the number of average retransmission is indicated with Nr, then average response time
τ=T0+T0/2+Nr·[(K/2)·TA+T0/2]
=T0{1.5+Nr·[(K/2)·TA/T0+1/2)]}；
When K is very big, Nr is unrelated with K, then
1+Nr=G/S；
Step 2: central control module scheduling attendance data processing module arranges attendance data using data processing software
Processing；It is counted using data processing software to each student attendance data by statistical module, generates each student's selective examination
The Attendance Sheet in period；Check that module inquires student attendance recording data information using search program by record；
Data processing software carries out in arrangement processing attendance data, receives attendance data and safeguards more new command；
Subscriber identity information is obtained according to the maintenance more new command and needs to safeguard the dimension table information of the dimension table updated；
According to the pre-set dimension table configuration information of the dimension table acquisition of information；Wherein, in the dimension table configuration information
With the source database needed to safeguard where the dimension table updated, the dimension table need synchronous purpose database and
Dimension table operation permission information；
According to the subscriber identity information and the dimension table operation permission information, judge whether the subscriber identity information is full
The foot dimension table operation permission information；
If the subscriber identity information meets the dimension table operation permission information, to it is described need safeguard update dimension table into
Row updates operation；
The dimension table being updated after operating is synchronized to the purpose database；
The dimension table operation permission information includes: the User Identity with dimension table operating right；
It is described to judge whether the subscriber identity information meets the dimension table operation permission information, comprising:
Judge the subscriber identity information whether in the User Identity with dimension table operating right；
The maintenance more new command is to increase content instruction, change content instruction or deletion content instruction；
Before being updated operation to the dimension table for needing maintenance to update, comprising:
It according to the maintenance more new command, determines and needs to safeguard the field updated, and get the needs and safeguard the word updated
Segment identification；
Pre-set field configuration information is got according to the field identification and the dimension table configuration information；Wherein,
The field configuration information includes the field contents ordering rule, field ordering information, field restrictive condition of the field；
It is described to need to safeguard that the dimension table updated is updated behaviour to described if the maintenance more new command is to increase content instruction
Make, comprising:
Obtain the corresponding batch data content of the increase content instruction；
According to the batch data content, increase field contents in one or more fields in the dimension table；
According to the field contents ordering rule, the field contents are ranked up；
According to the field ordering information, each field in dimension table is ranked up；
It is described to need to safeguard that the dimension table updated is updated behaviour to described if the maintenance more new command is change content instruction
Make, comprising:
Obtain the corresponding batch data content of the change content instruction；
According to the batch data content, field contents are changed in one or more fields in the dimension table；
It is described to need to safeguard that the dimension table updated is updated behaviour to described if the maintenance more new command is to delete content instruction
Make, comprising:
Field contents are deleted in one or more fields in the dimension table；
Further include:
It is described whether each field after judging the increase field contents, changing field contents or deletion field contents meets
Field restrictive condition；
If there is field to be unsatisfactory for the field restrictive condition, prompt information is generated；The prompt information is unsatisfactory for institute for prompting
The Field Count of field restrictive condition is stated, and prompts the field relevant information for being unsatisfactory for the field restrictive condition；The field phase
Close the field identification or field name that information includes the field；
Step 3: storage operation is carried out to student attendance data using memory by data memory module；Pass through reminding module
Data absent from duty and warning message are sent to by student client corresponding with student's student number according to student's student number using push products
In end；
Step 4: the attendance data information of student is shown using display screen by display module.
2. student's special electronic attendance checking system control method based on radio-frequency technique as described in claim 1, which is characterized in that
In step 3；Data memory module carries out encryption storage, Encryption Algorithm to storing data using data encryption algorithm are as follows:
Be arranged represent the algebraci closed field of domain K asK*=K/ { 0 } is multiplicative group, and component is the nonzero element in K, if
Algebraci closed fieldAffine plane beThat is:Then
Known algebraci closed fieldOn affine plane curve be by irreducible polynomialIn zero point composition
Set, i.e.,
Known C is affine plane curve, P=(x, a y) point on curve thus, if the conditions are met
Then P=(x, y) is the singular point on C, then curve C is singular curve, on the contrary, if the arbitrary point on curve cannot
Meet above-mentioned condition, this curve is nonsingular curve；
If E meets following equations
E:y2+a1+xy+a3Y=x3+a2x+a4x+a6
Assuming that P=(x, y) is a point on E, and meet x, y ∈ K, then P is the rational point of K；Then by elliptic curve
The point group E (K) of point composition can be described with following formula:
E (K)={ (x, y): x, y ∈ K, E (x, y)=0 } ∪ { 0 }
The discrimination formula of elliptic curve E can be described as follows in network storage:
In formula, only as δ=0, which is singular curve；
When E carries out isomorphism, property is constant, therefore can use its simple types and calculated, as standard type ciphering process, point
It does not describe are as follows:
If Char (K) ≠ 2,3: y2=x3+a4x+a6
If Char (K)=2, and the y of j ≠ 02+ xy=x3+a2x2+a6
If Char (K)=2, and j=0 y2+a3Y=x3+a4x+a6
If Char (K)=3, and the y of j ≠ 02=x3+x2+a6
If Char (K)=3, and the y of j ≠ 02=x3+x2+a6。
3. student's special electronic attendance checking system control method based on radio-frequency technique as described in claim 1, which is characterized in that
Radio-frequency card identification module recognition methods includes:
(1) holder's personal information is inputted into RFID system principal database, and information privacy grading is respectively set close
Code, then will be in reservoir of the personal information by recognizer write-in campus card RFID label tag；
(2) after campus card after holder holds information storage enters recognizer induction range, recognizer sends to campus card and examines
Card image is read in the request of electrical verification magnetic wave, and the demodulation of campus card RFID chip examines electromagnetic wave to receive the finger that card image is read in request
After order, card image is attached in the inspection electromagnetic wave of RFID chip reflection, after recognizer receives reflected electromagnetic wave
Card image is distinguished by demodulation, and the information of itself and RFID system principal database is compared into verification, is passed through if verifying
Then recognizer is sent to campus card examines electromagnetic wave request to read personal information；If verification does not pass through, RFID system host note
Record sincerity, which records and controls alarm device, to be sounded an alarm；
(3) after the demodulation of campus card RFID chip examines electromagnetic wave to receive the instruction that personal information is read in request, if recognizer is requested
The personal information of reading does not need password, then RFID chip adds recognizer in the inspection electromagnetic wave of reflection and requests reading
Personal information；If the personal information that recognizer request is read needs password or appearance, fingerprint comparative certification, RFID chip is anti-
That penetrates examines the information that additional request is verified in electromagnetic wave；
(4) recognizer passes through the additional information that RFID chip is distinguished in demodulation after receiving reflected electromagnetic wave, if reading institute
The information of itself and RFID system principal database is then compared verification by the personal information needed；If reading requests verification
Password or appearance, the checking request of fingerprint, then recognizer sends checking request to RFID system host；
(5) after RFID system host receives checking request, control letter is sent to user terminal or video camera, fingerprint acquisition device
Number, it acquires password or head portrait, finger print information and the information of itself and RFID system host data base is compared into verification；
(6) if all comparison is errorless for the information of required comparison verification, verification passes through, and identification process terminates；If required comparison core
Real information has more than one and the information of RFID system host data base is inconsistent, then verifies and do not pass through, RFID system host
It is written into sincere record and controls alarm device and sound an alarm；
The personal information includes photo, name, gender, department, profession, class, student number, ID card No./attendance record, survey
Test result and cheating situation sincerity record.
4. student's special electronic attendance checking system control method based on radio-frequency technique as described in claim 1, which is characterized in that
Attendance data processing module processing method includes:
S1, attendance data library system establish the attendance for storing preset quantity with one day attendance data for time dimension
Data file, the corresponding reduce node of each attendance data file, and different attendance data files correspond to different
Reduce node；
S2 evenly distributes daily attendance data at random to the reduce node of preset quantity, and by each of preset quantity
Reduce node will be under corresponding time dimension in the corresponding attendance data file of the attendance data that received insertion；
S3, after receiving the attendance data inquiry request including time dimension information and query object information, by the attendance
Data inquiry request is distributed to each reduce node, with by each reduce node under the corresponding time dimension of attendance data file
Attendance data in inquire the attendance data of the query object information.
5. student's special electronic attendance checking system control method based on radio-frequency technique as claimed in claim 4, which is characterized in that
Step S2 includes:
Daily attendance data is evenly divided into the attendance data subset of preset quantity at random；
The summation for obtaining the size of an attendance data subset and the size of an attendance data file, analyzes the summation
Whether preset threshold is less than or equal to；
If the summation is less than or equal to the preset threshold, each attendance data subset is randomly assigned to preset quantity
Reduce node, and attendance by each reduce node that the attendance data insertion of the attendance data subset received is corresponding
In data file under corresponding time dimension；
If the summation is greater than the preset threshold, prompting message is sent to scheduled terminal, increases reduce section to remind
The quantity of point simultaneously redistributes attendance data to reduce node；Or the automatic quantity for increasing reduce node, to divide again
With attendance data to reduce node.
6. a kind of student's special electronic attendance checking system control realized described in Claims 1 to 5 any one based on radio-frequency technique
The computer program of method.
7. a kind of terminal, which is characterized in that the terminal at least carries and is based on penetrating described in realization Claims 1 to 5 any one
The controller of student's special electronic attendance checking system control method of frequency technology.
8. a kind of computer readable storage medium, including instruction, when run on a computer, so that computer is executed as weighed
Benefit requires student's special electronic attendance checking system control method described in 1-5 any one based on radio-frequency technique.
9. student's special electronic attendance checking system controlling party based on radio-frequency technique described in a kind of implementation claim 1-5 any one
Student's special electronic attendance checking system based on radio-frequency technique of method, which is characterized in that the student based on radio-frequency technique is dedicated
Electronic attendance system includes:
Radio-frequency card identification module, connect with data acquisition module, for passing through reader identification campus card RFID label tag signal；
Data acquisition module is connect with radio-frequency card identification module, central control module, for that will acquire campus card by card reader
RFID label tag signal is converted into digital information；
Central control module, with radio-frequency card identification module, data acquisition module, attendance data processing module, statistical module, record
Module, data memory module, reminding module, display module connection are checked, for controlling the normal work of modules by single-chip microcontroller
Make；
Attendance data processing module, connect with central control module, whole for being carried out by data processing software to attendance data
Reason processing；
Statistical module is connect with central control module, for being united by data processing software to each student attendance data
Meter generates the Attendance Sheet that each student spot-check the period；
Record checks module, connect with central control module, for inquiring student attendance recording data information by search program；
Data memory module is connect with central control module, for carrying out storage operation to student attendance data by memory；
Reminding module is connect with central control module, for by push products according to student's student number by data absent from duty and warning
Information is sent in student client corresponding with student's student number；
Display module is connect with central control module, for showing the attendance data information of student by display screen.
10. a kind of student attendance equipment, which is characterized in that the student attendance equipment at least carries base as claimed in claim 9
In student's special electronic attendance checking system of radio-frequency technique.
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