CN208521292U - A kind of RFID card reader - Google Patents
A kind of RFID card reader Download PDFInfo
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- CN208521292U CN208521292U CN201821239268.0U CN201821239268U CN208521292U CN 208521292 U CN208521292 U CN 208521292U CN 201821239268 U CN201821239268 U CN 201821239268U CN 208521292 U CN208521292 U CN 208521292U
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Abstract
The utility model relates to a kind of RFID card reader, including mainboard and read head of swiping the card, the mainboard and read head split settings of swiping the card, and the mainboard with swipe the card read head and connected by conducting wire；When read head of swiping the card damages, directly read head of swiping the card can be replaced, without being replaced to entire RFID card reader, to reduce cost, more conducively promoted the use of；It only needs to reserve on elevator push button plate simultaneously to open up the hole that can wear conducting wire, read head of then swiping the card is by being pasted and fixed on the outside of elevator push button plate, and installation is fixed and disassembly is more convenient；The mainboard is equipped with CPU microcontroller, RFID high frequency card reading module, RS485 serial communication modular, buzzer module and power module, the input terminal of the output end connection CPU microcontroller of the RFID high frequency card reading module, the power module is for being powered each module；Anneta module, the input terminal of the output end connection RFID high frequency card reading module of the Anneta module are equipped with inside the read head of swiping the card.
Description
Technical field
The utility model relates to card reader technical fields, and in particular to a kind of RFID card reader.
Background technique
The characteristics of residential quarters is that user concentrates, capacity is big, unified security management, and most of income is not high,
Therefore community security system must satisfy the requirement of " safe and reliable, economical and effective, centralized management ", although having currently on the market each
The security product of kind of various kinds, but really meet cell feature, the product that suitable cell uses and few.It is most of to use camera shooting
Head is monitored cell as the safety defense monitoring system of front end, and such mode can not carry out effectively the invasion of unauthorized person
Primary prevention and control, can only be after occurring illegal invasion by transferring video recording using camera, the case where to understand at that time.
With being continuously increased for residential building, the estate management of cell just seems increasingly important, wherein visitor's registration and value
The management method that class guards the gate has been not suitable for the fast, convenient and safe demand of modern management.In order to adapt to modern society's residential property
The demand of management has invented a kind of elevator card-punching system: only with this building floor elevator card user just can directly into
The respective storey in the building Ru Zhe most directly limits the random disengaging of nonnative personnel, and the personnel in addition taking elevator are few, both
The electricity charge are saved, and save elevator maintenance expense, and maintain the health in elevator.
RFID is the english abbreviation of radio frequency identification.For popular, RFID card reader is a kind of energy read electronic label data
Automatic identification equipment.RFID radio frequency is a kind of contactless automatic identification technology, it passes through radiofrequency signal automatic identification mesh
Mark object is simultaneously swapped with the data in target object；In identification field, there is high capacity, high security, high interference immunity
Property, it is swift to operate the features such as non-contact IC card technology be valued by the people.Card reader based on radio frequency identification (RFID) is
Connect the intermediate bridge of subscriber card and application program.RFID card reader, which is applied to elevator card system, may be implemented to passive RFID
The reading of elevator card obtains the floor data information in passive RFID elevator card, limits the random disengaging of nonnative personnel, still
Existing RFID card reader is all integration apparatus, when RFID card reader some position damage when, need again by elevator by
The line and RFID card reader overall pulling down of button and host computer and RFID card reader, repair replacement, for user,
Not only maintenance replacement cost is high, and installs and remove all inconveniences；Existing RFID card reader is generally used and is fastened on simultaneously
On elevator push button plate, need to open up the hole to match with RFID card reader shape on elevator push button plate, since RFID is read
The model and size of card device are different, therefore cause unnecessary trouble for installation.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of RFID card reader, to solve in the prior art ask
Topic.
A kind of RFID card reader of the utility model, including mainboard and read head of swiping the card, the mainboard and read head fission of swiping the card are set
Set, and the mainboard with swipe the card read head and connected by conducting wire；
The mainboard is equipped with CPU microcontroller, RFID high frequency card reading module, RS485 serial communication modular, buzzer mould
Block and power module,
The CPU microcontroller is for executing the action command sent from host computer, and control and passive RFID elevator
The communication process of card；
The RFID high frequency card reading module activates passive RFID elevator for generating high-frequency emission energy, by Anneta module
Block and provide energy for it, then transmitting signal is modulated, for sending data to passive RFID elevator card, is connect simultaneously
The radiofrequency signal from passive RFID elevator card is received and reconciles, by the related passive RFID electricity of data information in passive RFID elevator card
It is for processing that the upper other relevant informations of ladder card are transmitted to CPU microprocessor；
The RS485 serial communication modular between CPU microprocessor and host computer for communicating；
The buzzer is used for the prompt being registrated successfully to effective passive RFID elevator card, and to invalid passive
The alarm of RFID elevator card registration failure；
The input terminal of the output end connection CPU microcontroller of the RFID high frequency card reading module；The CPU microcontroller
Output end is separately connected the input terminal of RS485 serial communication modular and buzzer module, the output end difference of the power module
It connect, is used for the input terminal of CPU microcontroller, RFID high frequency card reading module, RS485 serial communication modular and buzzer module
Each module is powered；
Anneta module is equipped with inside the read head of swiping the card, the Anneta module is used for activation and will be in passive RFID elevator card
Data information transfer to RFID high frequency card reading module；The output end of the Anneta module connects the defeated of RFID high frequency card reading module
Enter end.
Preferably, it is fixed with several strong magnetic screws on the mainboard, can directly adsorb the behaviour after elevator push button backboard
Make in case.
Preferably, the CPU microcontroller is a STM32F101C6-8 chip, pin PA9 and the RFID high frequency
The end RXDA of card reading module is connected, and pin PA10 is connected by resistance R18 with the end TXDA of the RFID high frequency card reading module, institute
The pin PB0 for stating STM32F101C6-8 chip is connected with the end EN of the RFID high frequency card reading module, the STM32F101C6-
The pin PB6 of 8 chips is connected with the buzzer module, the pin PA1 and the RS485 of the STM32F101C6-8 chip
The end DE of serial communication modular is connected with the end RE, and the pin PA2 of the STM32F101C6-8 chip and the RS485 serial ports are logical
Believe that the end D of module is connected, the pin PA3 of the STM32F101C6-8 chip passes through resistance R10 and the RS485 serial communication
The end R of module is connected, external power supply input terminal pin VDD, pin VDDA and the pin VBAT of the STM32F101C6-8 chip
It is connected with the end the VDD3 output end of power module.
Preferably, the RFID high frequency card reading module includes high frequency card reading chip U3, resistance R16, capacitor C13, capacitor
C14, capacitor C15, capacitor C16, capacitor C20, capacitor C21, capacitor C22, capacitor C23 and key S1, the high frequency card reading chip
The model RLM200 of U3, the end EN of the high frequency card reading chip U3 are connected with the pin PB0 of STM32F101C6-8 chip, institute
The end BUZ for stating high frequency card reading chip U3 is connected with LED light D3, and another 1 foot of the LED light D3 is connected with resistance R16, the high frequency
The end TXDA of card reading chip U3 is connected with 1 foot of resistance R18, the end RXDA of the high frequency card reading chip U3 and STM32F101C6-
The pin PA9 of 8 chips is connected, and the end TRIG of the high frequency card reading chip U3 is connected with the 1st foot and capacitor C14 of key S1, institute
The end VCC for stating high frequency card reading chip U3 is connected with capacitor C13, VCC and capacitor C15, the end GND of the high frequency card reading chip U3 with
Capacitor C13, capacitor C15 are connected with GND, and the end ATN of the high frequency card reading chip U3 is connected with the 1st foot of Anneta module J4.
Preferably, the RS485 serial communication modular includes RS485 communication chip U2, resistance R10, resistance R11, resistance
It is R6, resistance R7, resistance R8, resistance R9, resistance R12, resistance R13, resistance R14, resistance R15, LED light TXD, LED light RXD, anti-
To diode BD2, backward dioded BD3 and backward dioded BD4, the model VP3082 of the RS485 communication chip U2, institute
The end R for stating RS485 communication chip U2 is connected with resistance R10 and LED light RXD, another 1 foot and the resistance R7 phase of the LED light RXD
Even, another 1 foot of the resistance R10 is connected with the pin PA3 of STM32F101C6-8 chip, the DE of the RS485 communication chip U2
End and the end RE are connected with the pin PA1 of resistance R11 and STM32F101C6-8 chip, the end D of the RS485 communication chip U2
It is connected with the pin PA2 of STM32F101C6-8 chip and LED light TXD, another 1 foot of the LED light TXD is connected with resistance R6, institute
The end A for stating RS485 communication chip U2 is connected with resistance R8 and resistance R12, another 1 foot and backward dioded of the resistance R12
BD2, backward dioded BD3 are connected with resistance R15, another 1 pin and backward dioded BD2, backward dioded of the resistance R13
BD4 is connected with resistance R14, and another 1 foot of the resistance R14 is connected with RS485 interface, another 1 foot and RS485 of the resistance R15
Interface is connected, and the 3rd foot of the RS485 interface is connected with GND, and the 4th foot of the RS485 interface is connect with VIN.
Preferably, the LED indication module for showing the working condition of RFID card reader is additionally provided on the mainboard.
Preferably, it is additionally provided with debugger J3 and debugging interface line circuit J1 on the mainboard, the 1st of the debugger J3 the
Foot is connected with resistance R27, and another 1 foot of the resistance R27 is connected with the pin PA10 of resistance R24 and STM32F101C6-8 chip,
The 2nd foot of the debugger J3 is connected with the pin PA9 of STM32F101C6-8 chip, the 3rd foot and VCC of the debugger J3
Be connected, the 4th foot of the debugger J3 is connected with GND, the 1st foot and the 2nd foot of the debugging interface line circuit J1 with
VDD3 is connected, the 3rd foot of the debugging interface line circuit J1, the 5th foot, the 7th foot, the 9th foot and the 13rd foot respectively one by one with
Pin PB4, pin PA15, pin PA13, the pin PA14 of STM32F101C6-8 chip are connected with pin PB3, and the debugging connects
The 11st foot of mouth line circuit J1 is connected by resistance R3 with GND.
Preferably, be additionally provided with toggle switch SW1 on the mainboard, the 1st foot of the toggle switch SW1 with
The pin PB15 of STM32F101C6-8 chip is connected, the 2nd foot of the toggle switch SW1 and drawing for STM32F101C6-8 chip
Foot PB14 is connected, and the 3rd foot of the toggle switch SW1 is connected with the pin PB13 of STM32F101C6-8 chip, and the dial-up is opened
The 4th foot for closing SW1 is connected with the 1st foot of the RS485 interface of RS485 serial communication modular, the 5th foot of the toggle switch SW1
It is connected by resistance R1 with the 2nd foot of the RS485 interface of RS485 serial communication modular.
Structure more than, make the utility model has the following beneficial effects:
1, mainboard described in the utility model and read head split settings of swiping the card, and the mainboard and read head of swiping the card pass through conducting wire
Connection；The mainboard and read head split settings of swiping the card can directly replace read head of swiping the card when read head of swiping the card damages,
Without being replaced to entire RFID card reader, to reduce cost, more conducively promote the use of；It only needs to press in elevator simultaneously
Reserved in keypad and open up the hole that can wear conducting wire, read head of then swiping the card by being pasted and fixed on the outside of elevator push button plate,
Installation is fixed and disassembly is more convenient.
2, the 5th foot of toggle switch SW1 described in the utility model passes through resistance R1 and RS485 serial communication modular
2nd foot of RS485 interface is connected, and the resistance R1 is that it is anti-that signal can be effectively prevented when communication cable is longer in build-out resistor
String, the decline of communication quality caused by avoiding data from stealthily substituting.
3, it is fixed with several strong magnetic screws on mainboard described in the utility model, can directly adsorb elevator push button backboard
In control box afterwards, install simple and convenient.
Detailed description of the invention
By referring to the drawings to the description of the utility model embodiment, above-mentioned and other mesh of the utility model
, feature and advantage will be apparent from, in the accompanying drawings:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural block diagram of the utility model；
Fig. 3 is the circuit diagram of CPU microcontroller and peripheral circuit in the utility model；
Fig. 4 is the circuit diagram of RFID high frequency card reading module and Anneta module in the utility model；
Fig. 5 is the circuit diagram of buzzer module in the utility model；
Fig. 6 is the circuit diagram of RS485 serial communication modular in the utility model；
Fig. 7 is the circuit diagram of power module in the utility model；
Fig. 8 is the circuit diagram of debugger and debugging interface line circuit in the utility model；
Fig. 9 is the circuit diagram of toggle switch in the utility model.
In figure: 1, mainboard；2, it swipes the card read head；3, conducting wire.
Specific embodiment
Hereinafter reference will be made to the drawings is more fully described the various embodiments of the utility model.
Described embodiment is only the utility model a part of the embodiment, instead of all the embodiments.Based on this reality
With the embodiment in novel, those of ordinary skill in the art without making creative work it is obtained it is all its
His embodiment, belongs to the range that the utility model is protected.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；It can be and be directly connected to, can also be connected by intermediary brief introduction,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The specific meaning of language in the present invention.
A kind of RFID card reader, including mainboard 1 and read head 2 of swiping the card, the mainboard 1 and swipe the card 2 split settings of read head, and institute
It states mainboard 1 and read head 2 of swiping the card is connected by conducting wire 3；The mainboard 1 and 2 split settings of read head of swiping the card, when swiping the card, read head 2 is damaged
When, directly read head 2 of swiping the card can be replaced, without being replaced to entire RFID card reader, to reduce cost, more
Conducive to popularization and use；It only needs to reserve on elevator push button plate simultaneously to open up the hole that can wear conducting wire 3, reading of then swiping the card
First 2 by being pasted and fixed on the outside of elevator push button plate, and installation is fixed and disassembly is more convenient；The mainboard 1 is equipped with CPU micro-control
Device, RFID high frequency card reading module, RS485 serial communication modular, buzzer module and power module processed, the CPU microcontroller
For executing the action command sent from host computer, and the communication process of control and passive RFID elevator card；The RFID high
Frequency card reading module activates passive RFID elevator card by Anneta module and provides energy for it for generating high-frequency emission energy,
Then transmitting signal is modulated, for sending data to passive RFID elevator card, while receives and reconciling from passive
The radiofrequency signal of RFID elevator card, by other correlations are believed on the related passive RFID elevator card of data information in passive RFID elevator card
It is for processing that breath is transmitted to CPU microprocessor；The RS485 serial communication modular be used for CPU microprocessor and host computer it
Between communicated；The buzzer is used for the prompt being registrated successfully to effective passive RFID elevator card, and to invalid nothing
The alarm of source RFID elevator card registration failure；The input of the output end connection CPU microcontroller of the RFID high frequency card reading module
End；The output end of the CPU microcontroller is separately connected the input terminal of RS485 serial communication modular and buzzer module, described
The output end of power module respectively with CPU microcontroller, RFID high frequency card reading module, RS485 serial communication modular and buzzer
The input terminal of module connects, for being powered to each module；Anneta module, the antenna are equipped with inside the read head 2 of swiping the card
Module is for activating and by the data information transfer in passive RFID elevator card to RFID high frequency card reading module；The Anneta module
Output end connection RFID high frequency card reading module input terminal；Several strong magnetic screws are fixed on the mainboard 1, it is specific real
Shi Shi is generally respectively provided with 1 at four angles of mainboard 1, and in the control box after can directly adsorbing elevator push button backboard, installation is simple
It is convenient.
The CPU microcontroller is a STM32F101C6-8 chip, pin PA9 and the RFID high frequency card reading module
The end RXDA be connected, passive RFID elevator card and energy is provided for activating by Anneta module for it, then to emitting signal
It is modulated, for sending data to passive RFID elevator card, pin PA10 passes through resistance R18 and the RFID high frequency card reading
The end TXDA of module is connected, for by other correlations are believed on the related passive RFID elevator card of data information in passive RFID elevator card
It is for processing that breath is transmitted to CPU microprocessor；The pin PB0 of the STM32F101C6-8 chip and the RFID high frequency card reading
The end EN of module is connected, for controlling the register in read-write RFID high frequency card reading module；The STM32F101C6-8 chip
Pin PB6 is connected with the buzzer module, for being read out correct prompt to effective passive RFID elevator card, and
Invalid passive RFID elevator card is alarmed；The pin PA1 of the STM32F101C6-8 chip and the RS485 serial ports are logical
The end DE of letter module is connected with the end RE, the pin PA2 of the STM32F101C6-8 chip and the RS485 serial communication modular
The end D be connected, the pin PA3 of the STM32F101C6-8 chip passes through the R of resistance R10 and the RS485 serial communication modular
End is connected, as the transmitting terminal and receiving end of RFID card reader and external host computer serial communication, for CPU microprocessor with
It is communicated between host computer；External power supply input terminal pin VDD, the pin VDDA of the STM32F101C6-8 chip and draw
Foot VBAT is connected with the end the VDD3 output end of power module.
Toggle switch SW1, the 1st foot and STM32F101C6-8 core of the toggle switch SW1 are additionally provided on the mainboard 1
The pin PB15 of piece is connected, and the 2nd foot of the toggle switch SW1 is connected with the pin PB14 of STM32F101C6-8 chip, described
The 3rd foot of toggle switch SW1 is connected with the pin PB13 of STM32F101C6-8 chip, the 4th foot of the toggle switch SW1 with
1st foot of the RS485 interface of RS485 serial communication modular is connected, the 5th foot of the toggle switch SW1 by resistance R1 with
2nd foot of the RS485 interface of RS485 serial communication modular is connected, and the toggle switch SW1 in 2 different RS485 for connecing
It is switched between mouthful, the resistance R1 is that build-out resistor can be effectively prevented signal and play a reversed role, keep away when communication cable is longer
Exempt from the decline of communication quality caused by data are stealthily substituted.
The RFID high frequency card reading module includes high frequency card reading chip U3, resistance R16, capacitor C13, capacitor C14, capacitor
C15, capacitor C16, capacitor C20, capacitor C21, capacitor C22, capacitor C23 and key S1, the model of the high frequency card reading chip U3
The end EN for RLM200, the high frequency card reading chip U3 is connected with the pin PB0 of STM32F101C6-8 chip, is used for
STM32F101C6-8 chip controls read and write the register in RFID high frequency card reading module；The end BUZ of the high frequency card reading chip U3
It is connected with LED light D3, another 1 foot of the LED light D3 is connected with resistance R16, for prompting the on-off of high frequency card reading chip U3；Institute
The end TXDA for stating high frequency card reading chip U3 is connected with 1 foot of resistance R18, the end RXDA of the high frequency card reading chip U3 with
The pin PA9 of STM32F101C6-8 chip is connected, the end TRIG of the high frequency card reading chip U3 and the 1st foot and electricity of key S1
Hold C14 to be connected, the end VCC of the high frequency card reading chip U3 is connected with capacitor C13, VCC and capacitor C15, the high frequency card reading core
The end GND of piece U3 is connected with capacitor C13, capacitor C15 and GND, and the end ATN of the high frequency card reading chip U3 is with Anneta module J4's
1st foot is connected；The RFID high frequency card reading module activates passive RFID electricity for generating high-frequency emission energy, by Anneta module
Ladder blocks and provides energy for it, is then modulated to transmitting signal, for sending data to passive RFID elevator card, simultaneously
The radiofrequency signal from passive RFID elevator card is received and reconciles, by the related passive RFID of data information in passive RFID elevator card
It is for processing to be transmitted to CPU microprocessor for other relevant informations on elevator card；
The LED indication module for showing the working condition of RFID card reader is additionally provided on the mainboard 1；The mainboard 1
On be additionally provided with debugger J3 and debugging interface line circuit J1, the 1st foot of the debugger J3 is connected with resistance R27, the electricity
Resistance R27 another 1 foot be connected with the pin PA10 of resistance R24 and STM32F101C6-8 chip, the 2nd foot of the debugger J3 and
The pin PA9 of STM32F101C6-8 chip is connected, and the 3rd foot of the debugger J3 is connected with VCC, and the 4th of the debugger J3 the
Foot is connected with GND, and the debugger J3 is for the communication between CPU microcontroller and RFID high frequency card reading module；The debugging
The 1st foot and the 2nd foot of interface circuit circuit J1 is connected with VDD3, the 3rd foot of the debugging interface line circuit J1, the 5th foot,
7th foot, the 9th foot and the 13rd foot respectively one by one with the pin PB4 of STM32F101C6-8 chip, pin PA15, pin PA13, draw
Foot PA14 is connected with pin PB3, and the 11st foot of the debugging interface line circuit J1 is connected by resistance R3 with GND, the tune
Examination interface circuit circuit J1 is for downloading program into CPU microcontroller.
The RS485 serial communication modular includes RS485 communication chip U2, resistance R10, resistance R11, resistance R6, resistance
R7, resistance R8, resistance R9, resistance R12, resistance R13, resistance R14, resistance R15, LED light TXD, LED light RXD, backward dioded
The model VP3082, the RS485 of BD2, backward dioded BD3 and backward dioded BD4, the RS485 communication chip U2
The end R of communication chip U2 is connected with resistance R10 and LED light RXD, and another 1 foot of the LED light RXD is connected with resistance R7, for pair
The VCC power supply for whether connecting 5V is prompted, if connecting, LED light RXD green light is lighted, if nothing, LED light RXD green light is not shown
Show；
Another 1 foot of the resistance R10 is connected with the pin PA3 of STM32F101C6-8 chip, the RS485 communication chip
The end DE and the end RE of U2 is connected with the pin PA1 of resistance R11 and STM32F101C6-8 chip, the RS485 communication chip U2
The end D be connected with the pin PA2 of STM32F101C6-8 chip and LED light TXD, another 1 foot and the resistance R6 phase of the LED light TXD
Even, for whether, to connecting the VDD3 power supply of 3.3V and prompting, if connecting, LED light RXD red light to be lighted, if nothing, LED
Lamp RXD red light is not shown；The end A of the RS485 communication chip U2 is connected with resistance R8 and resistance R12, and the resistance R12's is another
1 foot is connected with backward dioded BD2, backward dioded BD3 and resistance R15, another 1 pin of the resistance R13 and reversed two pole
Pipe BD2, backward dioded BD4 are connected with resistance R14, and another 1 foot of the resistance R14 is connected with RS485 interface, the resistance
Another 1 foot of R15 is connected with RS485 interface, and the 3rd foot of the RS485 interface is connected with GND, the 4th foot of the RS485 interface
It is connect with VIN；The RS485 serial communication modular between CPU microprocessor and host computer for communicating.
Working principle: after passive RFID elevator card enters the radiofrequency field of RFID reader, the induced electricity that is obtained by its antenna
Power supply of the booster circuit as passive RFID elevator card chip is flowed through, while the induced current of information is passed through into radio-frequency front-end electricity
Road examine to obtain digital signal be sent into logic control circuit carry out information processing, the information of required reply then from memory obtain via
Logic control circuit sends RF front-end circuit back to, sends back to RFID reader finally by antenna, on the one hand, passive RFID elevator
Card wants start-up circuit need of work by obtaining enough energy in the antenna electromagnetic field that Anneta module generates in reader；Separately
On the one hand, antenna determines communication channel and communication modes between passive RFID elevator card and reader.
The electronic tag for preserving the floor number identification data of user is set in passive RFID elevator card, runs host computer, to
Slave computer RFID card reader sends card reading order, after slave computer RFID card reader receives card reading order, in double meter of Anneta module
Passive RFID elevator card detected, when there is passive RFID elevator card to enter in the reading range of RFID card reader, if nothing
Source RFID elevator card is effectively to block, then the floor of the user, buzzer prompt are registered in the CPU microcontroller of RFID card reader
One sound indicates to be registrated successfully, while can execute the operation of elevator operation；If not effectively card is then reported by buzzer module
It is alert, while result is shown by LED indication module.
There are room number, floor number and relevant information in passive RFID elevator card, as long as people carry this passive RFID
Elevator card does not need by floor button, to remove the operation for pressing floor key from again in elevator, and carriage automatically selects passive RFID elevator
Corresponding place floor in card, efficiently boarding experience more convenient to people, while non-cell and building can be effectively prevented
The personnel of floor enter in this building, it is often more important that and nonnative personnel cannot arbitrarily take elevator and enter in floor, this reduces
The generation of cell thievery ensure that the stable of cell, ensure that the property safety of owners；The utility model can have
Effect, the discrepancy access for easily and safely controlling personnel in building have the characteristics that high reliablity, strong security, convenient and efficient.
The power module includes that power supply and power management module exist respectively in order to improve the stability of input/output terminal
The input terminal and output end of power supply and power management module have mounted capacitor, as shown in Figure 7；The VIN of power supply terminates the electricity into 24V
It presses, LED light PWR is bright in power supply, whole system starting, after the pressure stabilizing of power supply, by the electricity of the end the VCC output 5V of power supply
Pressure, the end VCC of power supply are connected with the end VCC of power management module, and the end VCC of power management module inputs 5V voltage, via electricity
After the processing of source control module, by the voltage of its end VDD3 output 3.3V, each module on mainboard 1 is powered.
Specific implementation: increase RFID card reader in existing elevator, first dismantle elevator push button plate, by elevator push button
Control box exposure after backboard, then carries out magnetic force with control box by 4 be fixed on mainboard 1 strong magnetic screws and fixes, pacify
It fills simple and convenient；Swipe the card one end of read head 2 is fixedly connected with conducting wire, and the other end of conducting wire is fixed with plug wire head, and plug wire head is direct
It is plugged in the end ANT of the RFID high frequency card reading module of mainboard 1；The plug wire head for read head 2 of swiping the card is worn and is reserved on elevator push button plate
Then the hole opened up is fixed on the outside of elevator push button plate read head 2 is swiped the card by 3M glue, at this time again by plug wire head with
The end ANT of the RFID high frequency card reading module of mainboard 1 is connected, and completes the assembling to RFID card reader and to read head 2 of swiping the card
Hereafter RS485 interface is connected host computer by cable, that is, completes the integral installation to RFID card reader by installation, easy to operate
It is convenient.
Finally, it should be noted that obviously, above-described embodiment is merely examples for clearly illustrating the present invention,
And it does not limit the embodiments.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.And thus
Changes and variations that derived from still in the protection scope of the utility model among.
Claims (8)
1. a kind of RFID card reader, it is characterised in that: including mainboard and read head of swiping the card, the mainboard and read head fission of swiping the card are set
Set, and the mainboard with swipe the card read head and connected by conducting wire；
The mainboard be equipped with CPU microcontroller, RFID high frequency card reading module, RS485 serial communication modular, buzzer module and
Power module；
The CPU microcontroller is for executing the action command sent from host computer, and control and passive RFID elevator card
Communication process；
The RFID high frequency card reading module activates passive RFID elevator card simultaneously for generating high-frequency emission energy, by Anneta module
Energy is provided for it, then transmitting signal is modulated, for sending data to passive RFID elevator card, while being received simultaneously
The radiofrequency signal from passive RFID elevator card is reconciled, by the related passive RFID elevator card of data information in passive RFID elevator card
It is for processing that upper other relevant informations are transmitted to CPU microprocessor；
The RS485 serial communication modular between CPU microprocessor and host computer for communicating；
The buzzer is used for the prompt being registrated successfully to effective passive RFID elevator card, and to invalid passive RFID electricity
The alarm of terraced card registration failure；
The input terminal of the output end connection CPU microcontroller of the RFID high frequency card reading module；The output of the CPU microcontroller
End is separately connected the input terminal of RS485 serial communication modular and buzzer module, the output end of the power module respectively with CPU
Microcontroller, RFID high frequency card reading module, RS485 serial communication modular are connected with the input terminal of buzzer module, for each
Module is powered；
Described swipe the card is equipped with Anneta module inside read head, and the Anneta module is for activating and by the number in passive RFID elevator card
It is believed that breath is transmitted to RFID high frequency card reading module；The input of the output end connection RFID high frequency card reading module of the Anneta module
End.
2. a kind of RFID card reader according to claim 1, it is characterised in that: it is strong to be fixed with several on the mainboard
Magnetic screw.
3. a kind of RFID card reader according to claim 1, it is characterised in that: the CPU microcontroller is one
STM32F101C6-8 chip, pin PA9 are connected with the end RXDA of the RFID high frequency card reading module, and pin PA10 passes through resistance
R18 is connected with the end TXDA of the RFID high frequency card reading module, the pin PB0 of the STM32F101C6-8 chip with it is described
The end EN of RFID high frequency card reading module is connected, the pin PB6 of the STM32F101C6-8 chip and the buzzer module phase
Even, the pin PA1 of the STM32F101C6-8 chip is connected with the end DE of the RS485 serial communication modular and the end RE, described
The pin PA2 of STM32F101C6-8 chip is connected with the end D of the RS485 serial communication modular, the STM32F101C6-8
The pin PA3 of chip is connected by resistance R10 with the end R of the RS485 serial communication modular, the STM32F101C6-8 core
External power supply input terminal pin VDD, pin VDDA and the pin VBAT of piece are connected with the end the VDD3 output end of power module.
4. a kind of RFID card reader according to claim 1, it is characterised in that: the RFID high frequency card reading module includes height
Frequency card reading chip U3, resistance R16, capacitor C13, capacitor C14, capacitor C15, capacitor C16, capacitor C20, capacitor C21, capacitor C22,
The model RLM200 of capacitor C23 and key S1, the high frequency card reading chip U3, the end EN of the high frequency card reading chip U3 with
The pin PB0 of STM32F101C6-8 chip is connected, and the end BUZ of the high frequency card reading chip U3 is connected with LED light D3, the LED
Another 1 foot of lamp D3 is connected with resistance R16, and the end TXDA of the high frequency card reading chip U3 is connected with 1 foot of resistance R18, the height
The end RXDA of frequency card reading chip U3 is connected with the pin PA9 of STM32F101C6-8 chip, the TRIG of the high frequency card reading chip U3
End is connected with the 1st foot and capacitor C14 of key S1, the end VCC of the high frequency card reading chip U3 and capacitor C13, VCC and capacitor
C15 is connected, and the end GND of the high frequency card reading chip U3 is connected with capacitor C13, capacitor C15 and GND, the high frequency card reading chip
The end ATN of U3 is connected with the 1st foot of Anneta module J4.
5. a kind of RFID card reader according to claim 1, it is characterised in that: the RS485 serial communication modular includes
RS485 communication chip U2, resistance R10, resistance R11, resistance R6, resistance R7, resistance R8, resistance R9, resistance R12, resistance R13,
Resistance R14, resistance R15, LED light TXD, LED light RXD, backward dioded BD2, backward dioded BD3 and backward dioded BD4,
The end R of the model VP3082, the RS485 communication chip U2 of the RS485 communication chip U2 and resistance R10 and LED light RXD
It is connected, another 1 foot of the LED light RXD is connected with resistance R7, another 1 foot and the STM32F101C6-8 chip of the resistance R10
Pin PA3 is connected, and the end DE and the end RE of the RS485 communication chip U2 is drawn with resistance R11 and STM32F101C6-8 chip
Foot PA1 is connected, and the end D of the RS485 communication chip U2 is connected with the pin PA2 of STM32F101C6-8 chip and LED light TXD,
Another 1 foot of the LED light TXD is connected with resistance R6, the end A and the resistance R8 and resistance R12 phase of the RS485 communication chip U2
Even, another 1 foot of the resistance R12 is connected with backward dioded BD2, backward dioded BD3 and resistance R15, the resistance R13's
Another 1 pin is connected with backward dioded BD2, backward dioded BD4 and resistance R14, and another 1 foot of the resistance R14 connects with RS485
Mouth is connected, and another 1 foot of the resistance R15 is connected with RS485 interface, and the 3rd foot of the RS485 interface is connected with GND, described
4th foot of RS485 interface is connect with VIN.
6. a kind of RFID card reader according to claim 1, it is characterised in that: be additionally provided on the mainboard for showing
The LED indication module of the working condition of RFID card reader.
7. a kind of RFID card reader according to claim 1, it is characterised in that: be additionally provided on the mainboard debugger J3 and
Debugging interface line circuit J1, the 1st foot of the debugger J3 are connected with resistance R27, another 1 foot and resistance of the resistance R27
The pin PA10 of R24 with STM32F101C6-8 chip is connected, the 2nd foot and the STM32F101C6-8 chip of the debugger J3
Pin PA9 is connected, and the 3rd foot of the debugger J3 is connected with VCC, and the 4th foot of the debugger J3 is connected with GND, the tune
The 1st foot and the 2nd foot for trying interface circuit circuit J1 are connected with VDD3, the 3rd foot of the debugging interface line circuit J1, the 5th
Foot, the 7th foot, the 9th foot and the 13rd foot respectively one by one with the pin PB4 of STM32F101C6-8 chip, pin PA15, pin PA13,
Pin PA14 is connected with pin PB3, and the 11st foot of the debugging interface line circuit J1 is connected by resistance R3 with GND.
8. a kind of RFID card reader according to claim 1, it is characterised in that: be additionally provided with toggle switch on the mainboard
The 1st foot of SW1, the toggle switch SW1 are connected with the pin PB15 of STM32F101C6-8 chip, the toggle switch SW1's
2nd foot is connected with the pin PB14 of STM32F101C6-8 chip, the 3rd foot and STM32F101C6-8 of the toggle switch SW1
The pin PB13 of chip is connected, and the 1st of the RS485 interface of the 4th foot and RS485 serial communication modular of the toggle switch SW1 the
Foot is connected, the 2nd foot that the 5th foot of the toggle switch SW1 passes through resistance R1 and the RS485 interface of RS485 serial communication modular
It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821239268.0U CN208521292U (en) | 2018-08-02 | 2018-08-02 | A kind of RFID card reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821239268.0U CN208521292U (en) | 2018-08-02 | 2018-08-02 | A kind of RFID card reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208521292U true CN208521292U (en) | 2019-02-19 |
Family
ID=65333229
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821239268.0U Expired - Fee Related CN208521292U (en) | 2018-08-02 | 2018-08-02 | A kind of RFID card reader |
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| Country | Link |
|---|---|
| CN (1) | CN208521292U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111079458A (en) * | 2019-12-13 | 2020-04-28 | 安徽九陆生物科技有限公司 | IC card swiping system |
-
2018
- 2018-08-02 CN CN201821239268.0U patent/CN208521292U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111079458A (en) * | 2019-12-13 | 2020-04-28 | 安徽九陆生物科技有限公司 | IC card swiping system |
| CN111079458B (en) * | 2019-12-13 | 2023-06-06 | 安徽九陆生物科技有限公司 | IC card swiping system |
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