CN109461064A - A kind of educational information resource recommender system - Google Patents
A kind of educational information resource recommender system Download PDFInfo
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Abstract
The invention discloses a kind of educational information resource recommender systems, the recommender system includes RFID card piece, user terminal, access point apparatus, subscriber information server, education resource service device, user terminal accesses campus network by access point apparatus, establishes connection respectively at subscriber information server and education resource service device via campus network.The recommender system can construct the interest model of learner, and recommend qualified resource for it according to the acquisition of knowledge degree and learning style of learner.Recommender system also can construct resource model, and its is actively recommended to qualified learner, to realize the bi-directional matching of learner and resource according to information such as the complexities, knowledge point contents, medium type of resource.
Description
Technical field
The present invention relates to a kind of resource recommendation system, in particular to a kind of educational information resource recommender system.
Background technique
With the fast development of information technology and network technology, the smart electronics such as computer and intelligent mobile phone are set
Standby popularity rate is also quickly improving.Learner can pass through interconnection using its intelligent electronic device carried anywhere or anytime
Net obtains the information needed for it.In the remote teaching of higher education, personalized Course Recommendation System has been obtained more wide
General application, and have been achieved for preferable effect.But current remote teaching is limited by equipment, place, can only set
Learning tasks are completed in the classroom for being equipped with remote teaching apparatus, belong to fixed location, set time, fixed mode remote teaching.
Currently, computer technology has striden into cybertimes via the single machine epoch, Move Mode is entered from fixed mode,
Also the technological accumulation and inheritance carried out whenever and wherever possible is provided for study.Mobile learning can satisfy the need that learner learns whenever and wherever possible
It asks, while there is also a distinct issues.Learner is easy when moving by external influence, they can not be for a long time
Keep the concentration of attention.In view of the above problems, learning to remind if learner can be given in reasonable time and place, will learn
The continuity and systematicness of mobile learning can be promoted to learner on the move by practising resource active push, and then promote movement
Learning effect.In addition, existing pushing learning resource method is lack of pertinence, it cannot be according to the learning demand and interest of learner
Personalized education resource is pushed, is unable to improve experience, the excitation learning interest of learner, learner's Experience Degree is poor.
Therefore, how to realize the personalized recommendation of educational information resource, and learner can be allowed to pass through hand-held mobile
Equipment realizes mobile study, and mode that is further abundant and promoting higher education and effect have become urgently to be solved ask
Topic.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of educational information resource recommender system, which can
According to the acquisition of knowledge degree and learning style of learner, the interest model of learner is constructed, and eligible for its recommendation
Resource.Recommender system also can construct resource mould according to information such as the complexities, knowledge point contents, medium type of resource
Type, and its is actively recommended to qualified learner, to realize the bi-directional matching of learner and resource.In addition, this is
System can also meet the needs of learner learns on the move, receive the education informations money of recommendation at any time in the process of moving
Source, the arrival pattern of resource, which can be, to be played a kind of sound, or shows a piece of news on the screen etc..
The technical solution for solving above-mentioned technical problem is:
A kind of educational information resource recommender system, the recommender system include RFID card piece, user terminal, access point apparatus,
Subscriber information server, education resource service device, it is characterised in that:
User terminal accesses campus network by access point apparatus, via campus network respectively at subscriber information server and education
Resource Server establishes connection；
User terminal includes radio frequency unit, processor unit, storage unit, human-machine interface unit, wireless communication unit, short
Believe transmission unit, USB unit, ether net unit and peripheral circuit unit, wherein radio frequency unit, storage unit, man-machine interface
Unit, wireless communication unit, short message transmission unit, USB unit, ether net unit and peripheral circuit unit respectively with processor
Unit is connected；
Radio frequency unit, using FM1702SL radio frequency chip, which is connected with processor unit, will be from RFID card
The information that piece is read is sent to processor unit；
USB unit, using EZ-USB chip AN2131Q, which connect with processor unit, receives from processing
The data of device unit；
Ether net unit, using chip DM9000A and network connector chip HR911105A, the ether net unit and place
The connection of device unit is managed, the data from processor unit are received；
Storage unit is connect with processor unit, receives the data from processor unit, which is divided into data
Store two parts with program, pin-saving chip uses large capacity nonvolatile memory, and capacity is 2048K × 8, it is internal by
Lithium battery and the SRAM and voltage monitoring circuit of standard composition, program storage chip use capacity to deposit for the Flash of 64K × 8
Store up chip；
Human-machine interface unit is connect with processor unit, forwards operational order, human-machine interface unit packet to processor unit
Include keyboard interface socket, LCD display module interface socket and the phase inverter with Schmidt trigger；
Peripheral circuit unit is connect with processor unit, in the peripheral circuit unit include reset circuit, crystal oscillating circuit with
And power circuit；
Short message transmission unit is connect with processor unit, which uses double frequency gsm module TC35i；
Wireless communication module is connect with processor unit, which uses monolithic radio frequency transceiving chip
NRF24L01。
Preferably, the processor unit uses ARM embedded processing chip LPC2210.
Preferably, the information carried in the RFID card piece includes the number of learner, grade, major name.
Educational information resource recommender system of the invention, can be realized the personalized recommendation of educational information resource, with " document
Select to read and thesis writing " for this online course resource, resource is screened according to learner's demand and its learning characteristic
With learner is presented to after filtering.After learner inputs keyword, the resource that learner's demand is best suitable in resources bank is discharged to
First, other resources successively come subsequent corresponding position according to matching degree.When the demand label of resource tag and learner
When matching, it is also to be best suitable for the resource of learner's demand that resource at this time, which is optimal resource, these resources are pressed matching degree
Sequence from high to low is presented to learner.Learner can choose screening item to the preference of resource according to oneself simultaneously
Part again screens resource, at this time resource carry out dynamic update present, recommender system can according to the selection of learner come
Carry out the push of education informations resource.
Detailed description of the invention
Fig. 1 is the network topology structure schematic diagram of this resource recommendation system；
Fig. 2 is the structural schematic diagram of user terminal in this resource recommendation system；
Fig. 3 is the circuit diagram of radio frequency unit in user terminal；
Fig. 4 is the circuit diagram of storage unit in user terminal；
Fig. 5 is the circuit diagram of human-machine interface unit in user terminal；
Fig. 6 is the circuit diagram of USB unit in user terminal；
Fig. 7 is the circuit diagram of ether net unit in user terminal；
Fig. 8 is the circuit diagram of short message transmission unit in user terminal；
Fig. 9 is the circuit diagram of wireless communication unit in user terminal；
Figure 10 is the circuit diagram of peripheral circuit unit in user terminal.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The network topology structure schematic diagram of this resource recommendation system is as shown in Figure 1.The resource recommendation system includes RFID card
Piece, user terminal, access point apparatus, subscriber information server, education resource service device.It is written with learner's in RFID card piece
Relevant information, the information carried in RFID card piece includes the information such as number, grade, the major name of learner, every learner
Information be all relatively independent unique, if RFID card piece loss can arrive school Educational Affairs Office and be made up.Every learner
Possess the removable user terminal carried, user terminal can be by wired or wirelessly establish with access device
Connection, and campus network is accessed after completing authentication, learner can customize education resource by user terminal, check clothes
Business device information, the individualized education resource for receiving push.
When in use, first by RFID card piece close to user terminal, user terminal reads in RFID card piece to learner
Learner information is uploaded to by subscriber information server by the access point apparatus connected after habit person's information and carries out authentication.It learns
The function that habit person may be implemented by user terminal includes checking resource, being searched according to resource type, keyword, duration and size etc.
Suo Ziyuan.
Subscriber information server is placed in the network center of school, is substantially also a server, and main function is
Authentication service, the search service of information of learner's identity information are provided, save educational resource institute on subscriber information server
The historical informations such as the information such as number, geographical location, the IP of corresponding server and the learning records of learner.
Table 1
The registration information of learner is preserved on subscriber information server, registration information is needed to be manually entered for the first time, be carried out
Setting, subsequent user can also be with manual modification.The essential information of learner include: user name, password, name, gender, profession,
Grade etc., the customized information of learner include: including learning preference, media preferences (video, animation, audio, image, text
This), learning objective (basic learning, Applied Learning, enquiry learning), learning motivation (aid growth, perceptual demand, interest drive,
Utilitarian target) and education resource duration preference (0-15,15-30,30-45,45 or more).Independent learner and interdependent sexology
The different characteristics of habit person in the study is more as shown in table 1.
Subscriber information server receives the search content of learner, and carries out to search result combination user personalized information
Sequence, and user terminal is returned result to, it is shown on the subscriber terminal according to sequence and matching degree.Learner can be with
Educational resource is downloaded as needed, collect, is shared, is recorded in addition, learner can check in subscriber information server
Study historical record, including 1) education resource content and relevant information, 2) learning track: the end PC, user terminal, when 3) learning
Between；4) to the operation of education resource (browsing, is shared at downloading)；5) the study duration of education resource (is used and accounts for the hundred of time overall length
Divide than indicating)；6) learner can check learning path；7) learner can continue last time study；8) learner can check
Unfinished learning tasks；9) learner can score and evaluate to resource.
The personalized push study of educational resource is carried out except through moveable user terminal, learner can also pass through
Traditional mode, that is, arrive e-learning classroom and log in learning system and learnt, and Resource Manager and back-stage management person can also
Educational information resource is regularly updated and the maintenance of system with the computer by connection campus network.Resource Manager
(have the permission generally teacher or resource provider) when uploading teaching resource, the resource information packet of required offer
It includes: 1) resource essential information: resource ID, founder ID, title, size (duration), label, affiliated chapters and sections etc.；2) medium type:
Video, animation, audio, image, text etc.；3) hierarchical resource: basis, reinforcement, expansion etc.；4) complexity: it is difficult, in, easily；5)
Resource class: video, audio, document, operation etc.；6) shape of tree, record screen formula, discussion type of interaction: are said.Resource Manager may be used also
It is audited with the resource to upload according to corresponding standard, is modified to information resources.Back-stage management person can be to user
Information is managed, such as user's addition, deletion, modification (class of subscriber and permission), and carries out education resource management, such as
Resource is uploaded, deletes, is modified.
The recommender system can predict user preference, correlative factor according to learner's preference prediction algorithm and correlative factor
Including user's learning records, learning path, interest information, check the customized informations such as resource type.The way of recommendation is divided into non-
Property recommendation and two kinds of personalized recommendation, wherein impersonal theory is recommended to be suitable for the first learner for using system, recommends newest
Resource, most hot resource, personalized recommendation include: 1) primary mode in this mode according to test result be different levels
Learner provides corresponding resource class: a.60 dividing below, provides basic type and medium-sized resource；B.60-80 divide, mention
For the resource of plain edition and expanding type；C.80 more than dividing, the resource of expanding type is provided；2) fine mode judges that learner is current
Learning state (test result)；Recommend respective resources (needing proposed algorithm) according to factors such as study preference, learning states；It is right
Learner's cluster with identical study preference；Same asset is recommended to fellow users according to collaborative filtering；Recommendation is provided
Source is ranked up.
The user that the educational resource of recommendation can be sent to learner by campus network in wireless or wired mode is whole
End.
The structural schematic diagram of user terminal is as shown in Figure 2 in this resource recommendation system.User terminal includes radio frequency unit, place
Manage device unit, storage unit, human-machine interface unit, wireless communication unit, short message transmission unit, USB unit, ether net unit with
And peripheral circuit unit, wherein radio frequency unit, storage unit, human-machine interface unit, wireless communication unit, short message transmission unit,
USB unit, ether net unit and peripheral circuit unit are connected with processor unit respectively.User terminal can pass through channel radio
Letter unit wirelessly establishes connection with access point apparatus, can also pass through ether net unit by wired mode and connect
Enter point device and establish connection, by accessing campus network, therefrom obtains the educational resource information recommended according to individual demand.Study
Whether the study schedule information of person has educational resource information update or downloading the information such as to finish, and will be sent in the form of short message
Onto the mobile phone of learner, the phone number of learner can be configured and change in the user terminal.In user terminal
Processor unit uses ARM embedded processing chip LPC2210.
The circuit diagram of radio frequency unit is as shown in figure 3, using FM1702SL as RF identification chip in user terminal.
1702 SL of FM is the non-contact card card reading special chip based on IS014443 standard.When FM1702SL radio frequency chip to such
When RFID card piece sends frequency electromagnetic waves, the LC series resonant circuit inside card will generate resonance, and capacitor will build up on charge.When
When stored charge is more than 2V, operating voltage can be provided for card circuit, realized wireless between the data and card reader in card
Transmission.Transmitter part inside FM1702SL, which does not need increase active circuit, can directly drive the antenna of operation short distance,
Receiver part provides a reliable and effective demodulation and decoding circuitry, the transponder signal compatible for IS014443A.
The circuit diagram of storage unit is as shown in figure 4, storage chip U3 is non-volatile using large capacity in user terminal
Memory, capacity are 2048K × 8 ,+5V power supply.Its inside is the SRAM and voltage monitoring electricity by lithium battery and standard
Road composition.It has 20 bit address buses, its address bus is divided into low 15 and high 6 two parts, low 15 ground by we
Location by processor unit address bus it is low 15 output, high 6 data/address bus by processor unit by setting latch
It is exported after function.Storage chip U4 uses Flash memory chip.It is a kind of to use capacity made of CMOS technology for 64K × 8
Position 32 pins it is quick read, can the erasable read-only memory removed of fast programming, the write-in of firmware program is on programmable device
Carry out, chip work normally when should forbid being written, chip write enabled pin WE should connect high level.In order to make program
Memory is chosen always in system operation, chip enable CE pin should be grounded.
The circuit diagram of human-machine interface unit such as Fig. 5 in user terminal, it mainly includes keyboard interface socket P9 and LCD
Display module interface socket P2 and phase inverter U15 with Schmidt trigger.In order to utilize the I/O for making full use of control unit
Pin simplifies key polling routine, and the interface mode of keyboard (not shown) uses independent mode, and each independent key is with one-to-one
Mode be directly connected in the I/O input line of control unit, each input pin connects a pull-up resistor, makes the defeated of keyboard
Enter for low level it is effective.
The model YM12864F, YM12864F of LCD display module (not shown) are that 128 × 64 lattice graphics lcds are shown
Module, its included T6963CLCD controller and T6A39, T6A40LCD driver, the external display memory (SRAM) of 8KB,
The inside character generator CGROM of 128 characters has figure, character, figure and character mixing three kinds of display patterns and 6 × 8
With 8 × 8 two kinds of display fonts.YM12864F can be powered using negative supply and+5V, can also be powered using single+5V.Using
Negative supply and+5V can adjust the contrast that LCD is shown when powering by potentiometer Rp4.Adjustable resistance R52 is used to adjust aobvious
Show the backlight illumination of module.
In user terminal USB unit circuit diagram as shown in fig. 6, it mainly by chips such as U1, U7, U8, U9, U10
With sockets and the wire jumper such as J1, J2, J3, J5 and S4 plucking number sign switch composition.U1 is EZ-USB chip AN2131Q, it is entire electricity
The core on road, there is 80 pins, the crystal oscillator of external 12MHz, and portion arrives 24HMz by frequency multiplier circuit frequency multiplication in the chip, USBD- with
USBD+ pin is connected with the D+ of Type B USB socket J1 with D- respectively by two resistance R5, R6.PA2/OE#,PA3/CS#,PA4/
6 pins such as FWR#, PA5/FRD#, PC6/WR#, PC7/RD# are multifunctional pins, must be connected using pin when the second function
Pull-up resistor, leg signal is invalid when ensuring not control signal output.WAKEUP# pin connect pull down resistor be in order to prevent into
Enter suspended state, it is ensured that EZ-USB can be run always.
The circuit diagram of ether net unit is as shown in fig. 7, ether net unit is ground using DAVICOM company in user terminal
A three-in-one network chip DM9000A of hair, the chip package is small, so it is few to occupy plank space.Ethernet chip and net
It needs to be connected by network isolation transformer among network connector, main function is stopping direct current, logical exchange, is avoided on twisted pair
DC level interference DM9000A normal work.The included isolation transformation of the network connector HR911105A selected in this system
Device, to simplify the design of circuit.
The circuit diagram of short message transmission unit is as shown in figure 8, SMS transmission module is public using Siemens in user terminal
The double frequency gsm module TC35i of department, short message transmission platform is introduced into system can be timely using this general form of short message
The multidate information of educational resource is sent to learner.
The circuit diagram of wireless communication unit is as shown in figure 9, NRF24L01 is the production of Nordic company in user terminal
A new single chip radio-frequency receiving-transmitting device, work in 2.4GHz-2.5GHz ISM band.Built-in frequency synthesizer, power are put
Functional modules such as big device, crystal oscillator, modulator, and merged enhanced Shock Burst technology, wherein output power and
Communication channel can be configured by program.NRF24L01 is low in energy consumption, when with the power emission of -6dBm, operating current also only
There is 9mA；When reception, operating current only has 12.3mA, and a variety of low-power working modes (power-down mode and idle mode) make energy conservation
Design is more convenient.
The circuit diagram of peripheral circuit unit is as shown in Figure 10 in user terminal.Peripheral circuit include reset circuit (a),
Crystal oscillating circuit (b), power circuit (c).Reset circuit is the essential a part of hardware system, and system is in the process of running
Due to will cause program fleet or crash by the interference of power supply noise radio frequency etc., exported in the reset of processor unit
Pin terminates a capacitor and constitutes electrification reset circuit to ground, while adding a control switch to constitute between reset pin and ground
Manual reset circuit.The clock source of processor unit is configured to external high-speed clock signal source, by the external crystal-controlled oscillation of 8MHz with two
Load capacitance C5, C6 of a 20pF constitutes clock circuit together, provides accurate master clock for system.The power supply of power circuit and
Decoupling capacitor and filter capacitor are all added between ground, D7 and D8 are respectively 3.3V and 2.5V power supply indicator.
This control unit uses the MAX3000A series CPLD chip of altera corp, and MAX3000A series CPLD is high property
Energy, low cost programmable logical device (PLD), it uses MAX architecture, has and carries out 3.3V in system by jtag interface
The ability of programming.Highdensity PLD, with 600 to 10,000 available door.Logical time delay between pin is 4.5ns, mostly electric
Crimping mouth, can make device Core Operational in 3.3V and I/O pin is compatible with 5V, 3.3V, 2.5V logic level, pin number
Range is from 44 to 256.It uses CMOS EEPROM technique, and programmed and erased number is up to 100 times.With programmable encrypted bits,
Design in chip can be encrypted, prevent others from reading the design data in chip easily.
The circuit diagram of human-machine interface unit is as shown in Figure 5 in this resource recommendation system.It mainly includes keyboard interface
Socket P9 and LCD display module interface socket P2 and phase inverter U15 with Schmidt trigger.Control is made full use of in order to utilize
The I/O pin of unit processed, simplifies key polling routine, and the interface mode of keyboard (not shown) uses independent mode, each independence
Key is directly connected in a manner of one-to-one in the I/O input line of control unit, and each input pin connects a pull-up electricity
Resistance, keeps the input low level of keyboard effective.
The model YM12864F, YM12864F of LCD display module (not shown) are that 128 × 64 lattice graphics lcds are shown
Module, its included T6963CLCD controller and T6A39, T6A40LCD driver, the external display memory (SRAM) of 8KB,
The inside character generator CGROM of 128 characters has figure, character, figure and character mixing three kinds of display patterns and 6 × 8
With 8 × 8 two kinds of display fonts.YM12864F can be powered using negative supply and+5V, can also be powered using single+5V.Using
Negative supply and+5V can adjust the contrast that LCD is shown when powering by potentiometer Rp4.Adjustable resistance R52 is used to adjust aobvious
Show the backlight illumination of module.
The circuit diagram of USB unit is as shown in Figure 6 in this resource recommendation system.It is mainly by U1, U7, U8, U9, U10
The equal sockets such as chips and J1, J2, J3, J5 and wire jumper and S4 plucking number sign switch composition.U1 is EZ-USB chip AN2131Q, it is
The core of entire circuit, there is 80 pins, the crystal oscillator of external 12MHz, and portion is by frequency multiplier circuit frequency multiplication to 24HMz in the chip,
USBD- with USBD+ pin is connected with the D+ of Type B USB socket J1 with D- respectively by two resistance R5, R6.PA2/OE#,PA3/
6 pins such as CS#, PA4/FWR#, PA5/FRD#, PC6/WR#, PC7/RD# are multifunctional pins, use pin when the second function
Pull-up resistor must be connected, leg signal is invalid when ensuring not control signal output.WAKEUP# pin connect pull down resistor be for
It prevents from entering suspended state, it is ensured that EZ-USB can run always.
The circuit diagram of galvanometer control unit is as shown in Figure 7 in this resource recommendation system.Galvanometer control unit circuit is
The key component for realizing high quality laser marking is simulation galvanometer control unit used in the previous laser marking machine.
In the present system, turned using the difference that the difference chip AM26C31 of TI (Texas Instrument) company carries out four road signals
It changes, thus differential signal required for obtaining.In pin definitions corresponding to the galvanometer control unit interface that this system uses, when
Clock signal wire, synchronous signal line, X passage data line, Y channel data line correspond respectively to (CLK+, CLK-), (SYN+, SYN-),
(CHANNEL_X+,CHANNEL_X-),(CHANNEL_Y+,CHANNEL_Y-).It follows that four road signal wires of control unit
Be by accessing galvanometer control unit after difference again, therefore control unit cannot directly with the interface phase of galvanometer control unit
Even, but after needing an external difference channel to be converted CLK, SYN, CHANNEL_X, CHANNEL_Y become difference letter
Number (CLK+, CLK-), (SYN+, SYN-), (CHANNEL_X+, CHANNEL_X-), (CHANNEL_Y+, CHANNEL_Y-) are controlled
The operating of damping mirror control unit.AM26C31 chip includes No. 4 difference channels, can just carry out difference to 4 road signals, so
A piece of AM26C31 need to only be used.Clock cable, synchronous signal line, Y channel data signal line, X passage data signal line
PA4, PA5, PA6, PA7 in control unit are met respectively, and the differential signal after AM26C31 is converted accesses DB15 connector, should
DB15 connector is the signal input of galvanometer control unit.
The circuit diagram of ether net unit is as shown in Figure 8 in this resource recommendation system.Ether net unit uses DAVICOM
A three-in-one network chip DM9000A of company's research and development, the chip package is small, so it is few to occupy plank space.Ether steel wire rack
It needs to be connected by network isolation transformer among piece and network connector, main function is stopping direct current, logical exchange, is avoided double
The normal work of DC level interference DM9000A on twisted wire.The network connector HR911105A that is selected in this system it is included every
From transformer, to simplify the design of circuit.
The circuit diagram of peripheral circuit unit is as shown in figure 9, peripheral circuit includes resetting electricity in this resource recommendation system
Road (a), crystal oscillating circuit (b), power circuit (c), jtag circuit (d).Reset circuit is hardware system essential one
Point, system in the process of running due to will cause program fleet or crash by the interference of power supply noise radio frequency etc.,
The reset output pin of control unit terminates a capacitor and constitutes electrification reset circuit to ground, while between reset pin and ground
A control switch is added to constitute manual reset circuit.The clock source of resource recommendation system is configured to external high-speed clock signal source,
Clock circuit is constituted together with load capacitance C5, C6 of two 20pF by the external crystal-controlled oscillation of 8MHz, provides accurate master for system
Clock.Decoupling capacitor and filter capacitor are all added between the power supply and ground of power circuit, D7 and D8 are respectively 3.3V and 2.5V electricity
Source indicator light.In order to which the debugging of system is convenient, it is therefore necessary to be connected to debugging interface, which can be carried out simulation hardware, there is 5 marks
Calibration signal is JTCK, JTMS, JNTRST, JTDL, JTDO respectively, which passes through the JTAG of 20 needles, can direct and J-
LINK or U-LINK are connected, and can carry out in-circuit emulation, program downloading etc. to system by computer in this way.
In addition to the implementation, the present invention can also have other embodiment, all to use equivalent substitution or equivalent transformation shape
At technical solution, be all fallen within scope of the present invention.
Protection scope of the present invention is not limited to the above embodiments, it is clear that those skilled in the art can be to this hair
It is bright to carry out various changes and deformation without departing from scope and spirit of the present invention.If these changes and deformation belong to power of the present invention
In the range of benefit requirement and its equivalent technologies, then including the intent of the present invention also includes these changes and deforms.
Claims (2)
1. a kind of educational information resource recommender system, which includes RFID card piece, user terminal, access point apparatus, use
Family information server, education resource service device, it is characterised in that:
User terminal accesses campus network by access point apparatus, via campus network respectively at subscriber information server and educational resource
Server establishes connection, and campus network is accessed after completing authentication, learner by user terminal customize education resource,
The individualized education resource checked server info, receive push, the authentication specifically include user terminal and read RFID
After learner information in card, learner information is uploaded to by subscriber information server by the access point apparatus of connection and is carried out
Authentication；
User terminal includes radio frequency unit, processor unit, storage unit, human-machine interface unit, wireless communication unit, short message hair
Send unit, USB unit, ether net unit and peripheral circuit unit, wherein radio frequency unit, storage unit, human-machine interface unit,
Wireless communication unit, short message transmission unit, USB unit, ether net unit and peripheral circuit unit respectively with processor unit
It is connected；
Radio frequency unit, using FM1702SL radio frequency chip, which is connected with processor unit, will read from RFID card piece
The information taken is sent to processor unit；
USB unit, using EZ-USB chip AN2131Q, which connect with processor unit, receives and comes from processor list
The data of member；
Ether net unit, using chip DM9000A and network connector chip HR911105A, the ether net unit and processor
Unit connection, receives the data from processor unit；
Storage unit is connect with processor unit, receives the data from processor unit, which is divided into data and journey
Sequence stores two parts, and pin-saving chip uses large capacity nonvolatile memory, and capacity is 2048K × 8, internal by lithium electricity
The SRAM and voltage monitoring circuit of pond and standard composition, program storage chip use capacity to store core for the Flash of 64K × 8
Piece；
Human-machine interface unit is connect with processor unit, forwards operational order to processor unit, human-machine interface unit includes key
Disk interface socket, LCD display module interface socket and the phase inverter with Schmidt trigger；
Peripheral circuit unit is connect with processor unit, includes reset circuit, crystal oscillating circuit and electricity in the peripheral circuit unit
Source circuit；
Short message transmission unit is connect with processor unit, which uses double frequency gsm module TC35i；
Wireless communication module is connect with processor unit, which uses monolithic radio frequency transceiving chip NRF24L01；
Wherein, the information carried in RFID card piece includes the number of learner, grade, major name, and every learner
Information is all relatively independent unique；
Subscriber information server is placed in the network center of school, for providing authentication service, the information of learner's identity information
Search service, number, geographical location, the IP information of server corresponding to educational resource are saved on subscriber information server,
And the learning records historical information of learner.
2. recommender system according to claim 1, it is characterised in that: the processor unit uses ARM embedded processing
Chip LPC2210.
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| CN201811582101.9A CN109461064A (en) | 2018-12-24 | 2018-12-24 | A kind of educational information resource recommender system |
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| CN201811582101.9A CN109461064A (en) | 2018-12-24 | 2018-12-24 | A kind of educational information resource recommender system |
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| CN201811582101.9A Pending CN109461064A (en) | 2018-12-24 | 2018-12-24 | A kind of educational information resource recommender system |
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| CN117934224A (en) * | 2024-01-19 | 2024-04-26 | 惠州市东耀教育投资有限公司 | Online teaching system based on big data |
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| CN107800801A (en) * | 2017-11-07 | 2018-03-13 | 上海电机学院 | A kind of pushing learning resource method and system for learning preference based on user |
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