CN207268868U - A kind of control circuit for RFID intelligent read equipment - Google Patents
A kind of control circuit for RFID intelligent read equipment Download PDFInfo
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- CN207268868U CN207268868U CN201721036127.4U CN201721036127U CN207268868U CN 207268868 U CN207268868 U CN 207268868U CN 201721036127 U CN201721036127 U CN 201721036127U CN 207268868 U CN207268868 U CN 207268868U
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Abstract
The utility model discloses a kind of control circuit for RFID intelligent read equipment, including serial communication modular, network switching circuit module, MCU module, network controller, network communication module and RFID read-write module, low frequency and high frequency and ultra-high frequency RFID label can be read while write, while the scope of read-write can be according to the actual needs into the adjustment of line range, and multiple equipment section group net operation, it can also be combined with manufacturing the status indicator lamp of equipment, reduce purchase cost, realize the concertedness, centrality and stability of work, reduce maintenance cost.
Description
Technical field
It the utility model is related to field of radio frequency identification, and in particular to a kind of control electricity for RFID intelligent read equipment
Road.
Background technology
The background of related of the utility model is illustrated below, but these explanations might not form this practicality newly
The prior art of type.
RFID is a kind of wireless communication technique, also known as radio frequency identification, can identify specific objective simultaneously by radio signals
Related data is read and write, without establishing mechanical or optical contact between identifying system and specific objective；The signal of radio is logical
The electromagnetic field for being tuned into radio frequency is crossed, data are sent out from the label being attached on article, to recognize automatically with chasing after
The track article.Some labels can be obtained by energy in identification from the electromagnetic field that identifier is sent, and battery is not required；
There is label to possess power supply in itself, and can actively send radio wave or be tuned into the electromagnetic field of radio frequency；Label contains
The information of Electronic saving, can identify within several meters, unlike bar code, RF tag need not be in identifier and regard
Within line, it can also be embedded in and be tracked within object.
And under the historical background of nowadays internet and Internet of Things, promote related sensing and the upgrading of read-write technology with
Change, RFID tag application is widely used, and has so emerged large quantities of RFID read-write equipment and matched at the same time
Equipment；RFID read-write equipment currently on the market is all the label of the single a certain type of read-write, it is impossible to reads while write low frequency
With high frequency and ultra-high frequency RFID label, the scope fixation read while write cannot be according to the actual needs into the tune of line range
Whole, equipment cannot carry out Interworking Data transmission with enterprise MES/ERP systems, multiple equipment can not networking can only isolated operation,
Cannot be with miscellaneous equipment into row data communication, such as electronic scale, sensor；Can not be with the status indicator lamp of manufacturing equipment
It is combined, be easy to cause the increase of equipment purchase cost, without operation coordination, and equipment disperses to be unable to centralized Control to deposit
Work hidden danger and unstability are being improved, is causing maintenance cost also to increase.
Therefore, the control circuit for RFID intelligent read equipment that a kind of multifunctional groups integrate is needed in the prior art.
Utility model content
The purpose of this utility model is that propose a kind of control circuit for RFID intelligent read equipment, increase work association
The same sex so that the read-write capability of energy networking and equipment variation between equipment, and reduce the safety during equipment use
Hidden danger, has saved production cost.
A kind of control circuit for RFID intelligent read equipment according to the present utility model, including：
Serial communication modular, the instruction for receiving MCU module is written and read operation, and passes through network after the completion of read-write operation
Conversion circuit module is transmitted to MCU module；
The data of serial communication modular are converted into procotol by network and are sent to MCU by network switching circuit module
Module carries out data processing；
MCU module, for controlling and managing the operation of modules, the processing of data and gives modules to send instruction
It is set to perform operation；
Network controller, for the protocol integrated test system of network service, and the control of the procotol after MCU module is handled
System；
Network communication module, receives the data command that MCU is sent and is sent out again by network communication module to network control module
It is sent to destination address；
RFID read-write module, for receiving the read write command of MCU module and feeding back to MCU module after reading and writing RFID data.
Preferably, further including tri coloured lantern module, the grade that different colours are lighted in the instruction for receiving MCU module transmission is come
The state and signal of display device operation.
Preferably, further including buzzer module, MCU module and power circuit are connected, for receiving MCU module transmission
Sounding operation is carried out after enabled instruction.
Preferably, network transformer is further included, supply network communication module after the power supply of power circuit is changed.
Preferably, power circuit is further included, for receiving power supply and conversion electric power, and all moulds in circuit in order to control
Block is powered.
Preferably, power switch is further included, for controlling the switching on and shutting down of whole circuit.
Preferably, read-write switch is further included, for controlling the read-write operation of serial communication modular and RFID read-write module.
Preferably, the serial communication modular is RS232 communication modules, for being communicated with external equipment.
Preferably, the network communication module communicates for Transmission Control Protocol, RJ45 network interface connections to interchanger, with third party
Data are communicated.
Preferably, the RFID read-write module is UHF EPC G2 reader modules, for reading and writing RFID low frequencies, height
Frequency and ultrahigh-frequency tag, and ISO-18000-6C and EPC class1 gen2.
The utility model includes serial communication modular, network switching circuit module, MCU module, network controller, network and leads to
Believe module and RFID read-write module, low frequency and high frequency and ultra-high frequency RFID label can be read while write, while the model of read-write
Enclosing can be according to the actual needs into the adjustment of line range, and multiple equipment can group net operation, moreover it is possible to with manufacturing equipment
Status indicator lamp be combined, reduce purchase cost, realize the concertedness, centrality and stability of work, reduce safeguard into
This.
Compared with prior art, the utility model is beneficial in that：1）Can group net operation between multiple equipment；2）Can
Low frequency and high frequency and ultra-high frequency RFID label are read while write, read-write capability is not single；3）It can be realized with the management system of enterprise
Data interaction；4）Multiple equipment data collection synchronous.
Brief description of the drawings
By that will become and the specific embodiment part provided, the feature and advantage of the utility model referring to the drawings
It is easier to understand, in the accompanying drawings.
Fig. 1 is the circuit diagram of the MCU module of the utility model.
Fig. 2 is the circuit diagram of the tri coloured lantern module of the utility model.
Fig. 3 is the serial communication modular of the utility model and the circuit diagram of network switching circuit module.
Fig. 4 is the circuit diagram of the network controller of the utility model.
Fig. 5 is the circuit diagram of the network transformer of the utility model.
Fig. 6 is the circuit diagram of the network communication module of the utility model.
Fig. 7 is the circuit diagram of the power circuit of the utility model.
Fig. 8 is the circuit diagram of the RFID read-write module of the utility model.
Fig. 9 is the circuit diagram of the read-write switch of the utility model.
Figure 10 is the circuit diagram of the power switch of the utility model.
Figure 11 is the circuit diagram of the buzzer module of the utility model.
Embodiment
The illustrative embodiments of the utility model are described in detail with reference to the accompanying drawings；To illustrative embodiments
Description merely for the sake of demonstration purpose, and be definitely not limitation to the utility model and its application or usage.
Existing RFID tag read-write equipment cannot read while write low frequency and high frequency and ultra-high frequency RFID label, read at the same time
The scope fixation write cannot cannot be carried out into the adjustment of line range, equipment with enterprise's MES/ERP systems according to the actual needs
Interworking Data transmits, and multiple equipment is unable to networking can only isolated operation, it is impossible to miscellaneous equipment into data communication such as electronic scale,
Sensor, it is impossible to which the status indicator lamp with manufacturing equipment is combined, therefore causes the increase of equipment purchase cost, work
Do not have as concertedness, equipment disperses to be unable to centralized Control and exist to improve work hidden danger and unstability, maintenance cost increase.
Limitation and the expansion deficiency having for the middle RFID tag read-write equipment that solves the above problems, employ a kind of use
In the control circuit of RFID intelligent read equipment, the maintenance and management efficiency of enterprise is improved, improves the production of operation employee
Efficiency, reduces the security risk during equipment use, has saved production cost for enterprise, while also improve company information
Change degree and corporate image.
Equipment joined together by the utility model uses 100*80*37.6 aluminum alloy casings, for prevent the corrosion of shell into
And influence function；Its RFID read-write module is UHF EPC G2 reader modules, for reading and writing RFID low frequencies, high frequency and superelevation
Frequency marking label, and ISO-18000-6C and EPC class1 gen2；And it is provided with SMA radio-frequency antenna interfaces；Its buzzer
Module reads RFID tag or abnormal alarm occurs；Reset switch is additionally provided with equipment, device reset can after long-press
Recover plant；The bright different lamp of mode that the tri coloured lantern module can also be read and write according to equipment；The network conversion electricity
Relay is provided with the module of road, its relay has normally-open normally-close interface, its first pin and second pin are normally opened, second pin
Normally closed with the 3rd pin, maximum is 10A by electric current；RJ45 network interfaces are provided with network communication module to be used to ensure distinct device
It can be sent entirely with networking data.
In present embodiment, the MCU module includes main control chip, the 27th resistance of model STC12C5A60S2
R27, the 15th capacitance C15, second interface end P2, the first crystal oscillator Y1, the 14th capacitance C14, the 8th capacitance C8, first switch
SW1, the 42nd resistance R42, the 25th resistance R25, first resistor R1, the 40th resistance R40, the 18th resistance R18,
19 resistance R19, the 38th resistance R38, the 39th resistance R39, second connection end mouth P2, it includes 44 pins；Institute
It is all hanging to state the first to three, six, 24 to 30,34 to 37,39 to 41,44 pins, institute
The 4th pin for stating main control chip connects one end of the 27th resistance R27 and one end of the 15th capacitance C15 respectively, and described
Another termination 5V power supplys of 27 resistance R27, the other end of the 15th capacitance C15 are then connected to the 25th resistance
The other end of R25, the 5th pin of the main control chip and the 7th pin are connected to network switching circuit module, the master control
5th pin of chip is additionally coupled to the 4th pin of second connection end mouth P2, and the 7th pin of the main control chip is additionally coupled to
The three-prong of second connection end mouth P2, the second pin of the second connection end mouth P2 connect 5V power supplys, the second connection end
The first pin ground connection of mouth P2；8th to 13 pins of the main control chip are connected to the 6th control in network controller
The pin of chip U6；One end of the first crystal oscillator Y1 of the 14th pin connection of the main control chip, the one of the first crystal oscillator Y1
End is also associated with one end of the 14th capacitance C14, the other end ground connection of the 14th capacitance C14, and the of the main control chip
15 pins connect the other end of the first crystal oscillator Y1, and the other end of the first crystal oscillator Y1 is also associated with the one of the 8th capacitance C8
End, the other end ground connection of the 8th capacitance C8；The 16th pin ground connection of the main control chip, the tenth of the main control chip the
One end of seven pins connection first switch SW1, the other end ground connection of the first switch SW1, the 18th of the main control chip the
Pin is connected to network switching circuit module, and the 19th to 22 pins of the main control chip are connected to tri coloured lantern module,
23rd pin of the main control chip connects one end of the 42nd resistance R42, and the 42nd resistance R42's is another
End is connected to one end of the 25th resistance R25, and the other end of the 42nd resistance R42 is additionally coupled to RFID read-write module
In the 4th control chip U4 the 20th pin, the one of the 31st pin connection first resistor R1 of the main control chip
End, the other end of the first resistor R1 are connected to read-write switch, and the 32nd pin of the main control chip is connected to buzzing
Device module, the 33rd pin of the main control chip connect one end of the 40th resistance R40, the 40th resistance R40's
The other end is connected to the 4th pin of the 4th control chip U4 in RFID read-write module；Draw the 38th of the main control chip
Foot connects one end of the 18th resistance R18 and one end of the 19th resistance R19, another termination of the 18th resistance R18
3.3V power supplys, another termination 5V power supplys of the 19th resistance R19；The 42nd pin connection the 3rd of the main control chip
One end of 19 resistance R39, the 43rd pin of the main control chip connect one end of the 38th resistance R38, and described the
The 17th pin of the 4th control chip U4 in the other end connection RFID read-write module of 39 resistance R39, the described 3rd
The 15th pin of the 4th control chip U4 in the other end connection RFID read-write module of 18 resistance R38；MCU module is used for
Control and manage the operation of whole RFID intelligent reads equipment；MUC modules receive instruction and are sent to after read-write switch is opened
RFID reader and serial communication module, carry out digital independent, tri coloured lantern module bright light, while buzzer are corresponded to after the completion of reading
Drive sounding；Network controller is passed to after digital independent and third party database is sent to by network communication module.
In present embodiment, the network controller uses the 6th control chip U6 of model W5500, the 6th control
Draw the seven, the 12,13,15,17,18,21,24,26,46, the 47 of coremaking piece U6
Foot is all hanging, and the first pin, second pin, the 5th pin and the 6th pin of the 6th control chip U6 are connected to network
Transformer, the 3rd pin of the 6th control chip U6 are connected to one end of the 17th capacitance C17, the 6th control chip
The 3rd pin of U6 is also grounded, and the 4th pin of the 6th control chip U6 is connected to the other end of the 17th capacitance C17, institute
The 4th pin, the 8th pin, the 11st pin and the 28th pin for stating the 6th control chip U6 all connect 3.3V power supplys, described
The 9th pin, the 14th pin, the 16th pin, the 19th pin, the 29th pin and the 4th of 6th control chip U6
18 pins are all grounded, one end of the 30th resistance R30 of the tenth pin connection of the 6th control chip U6, and the described 30th
The other end ground connection of resistance R30, the 20th pin of the 6th control chip U6 connect one end of the 29th capacitance C29,
The 22nd pin of the 6th control chip U6 connects one end of the 30th capacitance C30, the 6th control chip U6's
23rd pin connects one end of the 35th resistance R35, the other end, the 30th capacitance of the 29th capacitance C29
The other end of the other end of C30 and the 35th resistance R35 are all grounded, the 25th pin of the 6th control chip U6 and
27th pin is connected to network communication module, and the 30th pin of the 6th control chip U6 connects the second crystal oscillator Y2's
One end, the 31st pin of the 6th control chip U6 connect the other end of the second crystal oscillator Y2, the second crystal oscillator Y2's
One end is also connected with one end of the 27th capacitance C27, and the other end of the second crystal oscillator Y2 is also connected with the one of the 12nd capacitance C12
End, the other end of the 27th capacitance C27 and the 12nd capacitance C12 are all grounded, and the 3rd of the 6th control chip U6 the
12 to 37 pins are connected to MCU module, and the 32nd pin of the 6th control chip U6 is also connected with the 26th
One end of resistance R26, the 36th pin of the 6th control chip U6 are also connected with one end of the 23rd resistance R23, institute
The 37th pin for stating the 6th control chip U6 is also connected with one end of the 17th resistance R17, the 17th resistance R17,
The other end of 23 resistance R23 and the 26th resistance R26 all connects 3.3V power supplys, and the 30th of the 6th control chip U6 the
Eight pins connect one end of the 16th resistance R16, and the 39th pin of the 6th control chip U6 connects the 15th resistance
One end of R15, the 40th pin of the 6th control chip U6 connect one end of the 14th resistance R14, the 6th control
The 41st pin of chip U6 connects one end of the 13rd resistance R13, the 42nd pin of the 6th control chip U6
Connect one end of the 12nd resistance R12, the 12nd resistance R12, the 13rd resistance R13, the 14th resistance R14, the 15th
Resistance R15, the other end of the 16th resistance R16 are all grounded, the 43rd pin connection second of the 6th control chip U6
One end of 12 resistance R22, the 44th pin of the 6th control chip U6 connect one end of the 21st resistance R21,
The 45th pin of the 6th control chip U6 connects one end of the 20th resistance R20, the 20th resistance R20, the
The other end of 21 resistance R21 and the 22nd resistance R22 all connects 3.3V power supplys；After serial communication module reads data
Pass by network switching circuit module transfer to MCU module, then sent after passing to network controller processing to MCU, MUC processing
Network communication module is sent to by network controller after data.
In present embodiment, the tri coloured lantern module includes tri coloured lantern port CN2, and the tri coloured lantern port CN2 is equipped with 6
Pin, the first pin, the 3rd to the 5th pin of the tri coloured lantern port CN2 are connected to MCU module, the tri coloured lantern port
The second pin ground connection of CN2, the 6th pin of the tri coloured lantern port CN2 connect 5V power supplys；Tri coloured lantern module is by receiving MCU moulds
The lamp of different colours is lighted in the instruction that block is sent.
In present embodiment, the serial communication module includes first serial end J1 and second serial end J2, and described first
Serial ports end J1 and second serial end J2 is three pins, is connected to network switching circuit module；First serial end J1 and
Two serial ports end J2 are RS232, for what is communicated with external equipment, can also update onboard data by the module and match somebody with somebody
Put, the serial communication module passes through network by starting read-write operation after receiving the instruction of MCU module after the completion of read-write operation
Conversion circuit module is transferred to MCU module.
In present embodiment, the network switching circuit module includes relay K1, the relay has normally-open normally-close to connect
Mouthful, its first pin and second pin are normally opened, and second pin and the 3rd pin are normally closed, the first serial of the serial communication module
Three pins of end J1 are connected to one end ground connection of relay K1, the relay K1, and the other end of the relay K1 connects
The emitter of the first triode Q1 is connected to, the emitter of the first triode Q1 is also connected with the anode of the first diode D1, institute
The plus earth of the first diode D1 is stated, the collector of the first triode Q1 connects 5V power supplys, the first triode Q1's
One end of base stage connection first resistor R1, the other end of the first resistor R1 are connected to the 18th pin of main control chip；Institute
The first pin for stating the second serial end J2 of serial communication module connects the 8th pin of the first chip U1, the serial communication mould
The second pin of the second serial end J2 of block connects the 7th pin of the first chip U1, the second serial of the serial communication module
The three-prong of J2 is held to connect one end of the 32nd capacitance C32, the other end of the 32nd capacitance C32 is connected to first
The 6th pin of chip U1, the 5th pin of the first chip U1 connect one end of the 31st capacitance C31, first core
The 4th pin of piece U1 connects the other end of the 31st capacitance C31, the second electricity of the 3rd pin connection of the first chip U1
Holding one end of C2, the first pin of the first chip U1 connects the other end of the second capacitance C2, and the of the first chip U1
Two pins connect one end of the 19th capacitance C19, and the other end of the 19th capacitance C19 is connected to the one of the 6th capacitance C6
End, the other end ground connection of the 6th capacitance C6, one end also two of the 6th capacitance C6 and the to the first chip U1 the tenth
Six pins, the 16th pin of the first chip U1 also connect 5V power supplys, the 15th pin of the first chip U1, the 13rd
Pin and the 11st pin are all grounded, and the 12nd pin and the 14th pin of the first chip U1 is all hanging, and described first
The tenth pin of chip U1 is connected to one end of the 51st resistance R51, and the 9th pin of the first chip U1 is connected to
One end of 52 resistance R52, the other end of the 52nd resistance R52 and the 51st resistance R51 are connected to MCU moulds
Block；Network switching circuit module is used into procotol send the data conversion that serial communication module is read to MCU module.
In present embodiment, the buzzer module includes the 3rd triode Q3, loudspeaker SP, the 41st resistance R41, institute
The first pin of the emitter connection loudspeaker SP of the 3rd triode Q3 is stated, the second pin of the loudspeaker SP is grounded, and the described 3rd
The collector of triode Q3 connects 5V power supplys, and the base stage of the 3rd triode Q3 connects one end of the 41st resistance R41, described
The other end of 41st resistance R41 is connected to the 32nd pin of main control chip；Buzzer module is sent by receiving MCU
Instruction carry out corresponding sounding operation.
In present embodiment, the network transformer includes the second chip U2, the 28th resistance R28, the 29th electricity
Hinder R29, the 34th resistance R34, the 33rd resistance R33, the 16th capacitance C16, the electricity of the 20th capacitance C20 and the 26th
Holding C26, fourth, fifth, 12 and 13 pins of the second chip U2 are hanging, and the nine, the 11, the ten of the second chip U2
Four and 16 pin be connected to network communication module, the second chip U2 the tenth and 15 pin be connected to power supply electricity
Road, first and third pin of the second chip U2 are connected to network controller, and the first pin of the second chip U2 is also connected with
One end of 29th resistance R29, the 3rd pin of the second chip U2 are also connected with one end of the 28th resistance R28, institute
The other end for stating the 28th resistance R28 and the 29th resistance R29 all connects 3.3V power supplys；The second of the second chip U2
Pin connects one end of the 16th capacitance C16, and the 7th pin of the second chip U2 connects one end of the 20th capacitance C20,
The other end of the 16th capacitance C16 and the 20th capacitance C20 is all grounded；The 6th pin connection the of the second chip U2
One end of 33 resistance R33, the 8th pin of the second chip U2 connect one end of the 34th resistance R34, and described the
33 resistance R33 and the other end of the 34th resistance R34 are connected to one end of the 26th capacitance C26, and described second
The other end ground connection of 16 capacitance C26, the 6th pin of the second chip U2 are also connected with one end of the 18th capacitance C18, institute
The 8th pin for stating the second chip U2 is also connected with one end of the 19th capacitance C19, the 18th capacitance C18 and the 19th capacitance
The other end of C19 is connected to network controller；The voltage that network transformer is used to provide power circuit supplies after being changed
To network communication module.
In present embodiment, the read-write switch is read-write Switch main body T-SW1, the read-write Switch main body T-SW1's
First pin is connected to the other end of first resistor R1, the second pin ground connection of the read-write Switch main body T-SW1.
In present embodiment, the power switch is power switch body SW2, the first pin of power switch body SW2
5V power supplys are connect, the second pin of power switch body SW2 connects 5V1 power supplys.
In present embodiment, the RFID read-write module includes fourth chip U4, the 5th capacitance C5, the first capacitance C1, the
Nine resistance R9, the tenth resistance R10, the 11st resistance R11 and LED ports；The 3rd pin of the fourth chip U4, the five to eight
Pin, the 12nd to 14 pins, the 16th pin, the 21st to 22 pins are all hanging, the fourth chip U4's
First pin connects one end of the tenth resistance R10, and the second pin of the fourth chip U4 connects one end of the 9th resistance R9, institute
State the three-prong of the other end connection LED ports of the tenth resistance R10, the other end connection LED ports of the 9th resistance R9
The first pin, the second pin connection 3.3V power supplys of the LED ports, the 4th pin of the LED ports then connects the tenth
One end of one resistance R11, the other end ground connection of the 11st resistance R11；The the nine, the 11 and 18 of the fourth chip U4
Pin is all grounded, and the tenth pin of the fourth chip U4 connects one end of the first capacitance C1, and the first capacitance C1's is another
End then connects antenna, and the 15th pin, the 17th pin and the 20th pin of the fourth chip U4 are connected to MCU moulds
Block, the 19th pin of the fourth chip U4 connect 5V power supplys, and the 19th pin of the fourth chip U4 is also connected with the 5th electricity
Hold one end of C5, the other end ground connection of the 5th capacitance C5；RFID read-write module is used for instruction and the read-write for receiving MCU module
MCU module is fed back after low frequency and high frequency and ultra-high frequency RFID label.
In present embodiment, the power circuit includes MIN USB ends, second and third pin at the MIN USB ends hangs
Sky, the 4th pin ground connection at the MIN USB ends, first pin at the MIN USB ends connect the cathode of the 4th diode D4,
The anode of the 4th diode D4 and the 5th diode D5 all connects 5V1 power supplys, the cathode connection of the 5th diode D5
5V2 power supplys；The power circuit further includes the 5th power conversion chip U5, the GND terminations of the 5th power conversion chip U5
Ground, the input terminal of the 5th power conversion chip U5 connect one end of the 11st capacitance C11, the 11st capacitance C11's
One end is also connected with one end of the 9th capacitance C9, and the other end of the 9th capacitance C9 and the 11st capacitance C11 is all grounded, and described
One end of nine capacitance C9 also connects 5V power supplys, and the output terminal of the 5th power conversion chip U5 connects the one of the 12nd capacitance C12
End, one end of the 12nd capacitance C12 are also connected with one end of the 13rd capacitance C13, and one end of the 13rd capacitance C13 is also
Connect one end of the tenth capacitance C10, the other end of the tenth capacitance C10, the 12nd capacitance C12 and the 13rd capacitance C13 are all
Ground connection, one end of the tenth capacitance C10 is also connected with one end of the first inductance L1, another termination 3.3V of the first inductance L1
Power supply；The power circuit further includes the 3rd IC chip U3, the 3rd IC chip U3 the five, the six, nine, ten pins it is all outstanding
Sky, the 8th pin connection 5V2 power supplys of the 3rd IC chip U3, the 7th pin ground connection of the 3rd IC chip U3 are described
The the first to two pin of 3rd IC chip U3 is connected to network transformer, the three to the four pin connection of the 3rd IC chip U3
To network communication module；The first pin of the 3rd IC chip U3 is also connected with one end of the 22nd capacitance C22, and the described 3rd
The second pin of IC chip U3 is also connected with one end of the 23rd capacitance C23, and the 3rd pin of the 3rd IC chip U3 also connects
One end of the 24th capacitance C24 is connect, the 4th pin of the 3rd IC chip U3 is also connected with the one of the 25th capacitance C25
End, the 22nd capacitance C22, the 23rd capacitance C23, the 24th capacitance C24 and the 25th capacitance C25 it is another
End is all grounded；Power circuit obtains 5V DC power supplies by USB port, and by being converted to 3.3V power supplys.
In present embodiment, network communication module includes USB interface and USB LED interfaces, and the 5th of the USB interface draws
Foot and the 7th pin are all hanging, the 4th pin of the USB interface and the 8th pin connection power circuit, the USB interface
First, second and thirdth, six pins are connected to network transformer；Second, four pins of the USB LED interfaces are connected to network control
Device, the first pin of the USB LED interfaces connect one end of the 31st resistance R31, and the 3rd of the USB LED interfaces draws
Foot connects one end of the 30th resistance R30, and the other end of the 30th resistance R30 and the 31st resistance R31 all connects
3.3V power supply；Network communication module receives the instruction that MCU module is sent and sends data to destination address.
Although the utility model is described with reference to illustrative embodiments, but it is to be understood that the utility model
The embodiment be described in detail and shown in text is not limited to, in the feelings without departing from claims limited range
Under condition, those skilled in the art can make various changes to the illustrative embodiments.
Claims (10)
- A kind of 1. control circuit for RFID intelligent read equipment, it is characterised in that including：Serial communication modular, the instruction for receiving MCU module is written and read operation, and is changed after the completion of read-write operation by network Circuit module is transmitted to MCU module；The data of serial communication modular are converted into procotol by network and are sent to MCU module by network switching circuit module Carry out data processing；MCU module, for controlling and managing the operation of modules, the processing of data and sends instruction to modules and makes it Perform operation；Network controller, for the protocol integrated test system of network service, and the control of the procotol after MCU module is handled；Network communication module, receives the data command that MCU is sent and is sent to again by network communication module to network control module Destination address；RFID read-write module, for receiving the read write command of MCU module and feeding back to MCU module after reading and writing RFID data.
- 2. control circuit according to claim 1, it is characterised in that：Tri coloured lantern module is further included, for receiving MCU module The lamp that different colours are lighted in the instruction of transmission carrys out state and the signal that display device is run.
- 3. control circuit according to claim 2, it is characterised in that：Buzzer module is further included, connects MCU module and electricity Source circuit, sounding operation is carried out after the enabled instruction for receiving MCU module transmission.
- 4. control circuit according to claim 3, it is characterised in that：Network transformer is further included, by the electricity of power circuit Supply network communication module after the conversion of source.
- 5. control circuit according to claim 4, it is characterised in that：Power circuit is further included, for receiving power supply and turning Change power supply, and all module for power supply in circuit in order to control.
- 6. control circuit according to claim 5, it is characterised in that：Power switch is further included, for controlling whole circuit Switching on and shutting down.
- 7. control circuit according to claim 6, it is characterised in that：Read-write switch is further included, for controlling serial ports to lead to Believe the read-write operation of module and RFID read-write module.
- 8. control circuit according to claim 7, it is characterised in that：The serial communication modular is RS232 communication modules, For being communicated with external equipment.
- 9. control circuit according to claim 8, it is characterised in that：The network communication module communicates for Transmission Control Protocol, RJ45 network interface connections are communicated to interchanger with third party's data.
- 10. control circuit according to claim 9, it is characterised in that：The RFID read-write module is UHF EPC G2 Reader module, for reading and writing RFID low frequencies, high frequency and ultrahigh-frequency tag, and ISO-18000-6C and EPC class1 gen2。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721036127.4U CN207268868U (en) | 2017-08-18 | 2017-08-18 | A kind of control circuit for RFID intelligent read equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721036127.4U CN207268868U (en) | 2017-08-18 | 2017-08-18 | A kind of control circuit for RFID intelligent read equipment |
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| CN207268868U true CN207268868U (en) | 2018-04-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107679430A (en) * | 2017-08-18 | 2018-02-09 | 宁波腾智信息技术有限公司 | A kind of control circuit for RFID intelligent read equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107679430A (en) * | 2017-08-18 | 2018-02-09 | 宁波腾智信息技术有限公司 | A kind of control circuit for RFID intelligent read equipment |
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