CN207117609U - Near field wireless awakening receiver - Google Patents
Near field wireless awakening receiver Download PDFInfo
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- CN207117609U CN207117609U CN201721123998.XU CN201721123998U CN207117609U CN 207117609 U CN207117609 U CN 207117609U CN 201721123998 U CN201721123998 U CN 201721123998U CN 207117609 U CN207117609 U CN 207117609U
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Abstract
The utility model discloses a kind of near field wireless awakening receiver, including housing, fixture, lid and rfid device, housing is provided with the accommodating chamber to cave inward, fixture is connected with the one end of housing away from accommodating chamber, lid is detachably connected with housing close to one end of accommodating chamber, rfid device is in the accommodating chamber, rfid device includes reduction voltage circuit, first insert row, second insert row and Anneta module, Anneta module includes single chip circuit, radio circuit, power control circuit and antenna, the output end of reduction voltage circuit connects the first insert row and the second insert row respectively, first insert row connects the second insert row, second insert row is connected with Anneta module.Housing is detachably connected with lid, facilitates the assembly and disassembly of rfid device, and wireless module is installed by insert row, has the advantages of being easy to production test and installation and maintenance.Rfid device has the function of Power Control, can be according to actual use demand regulation monitoring range.
Description
Technical field
It the utility model is related to communication technical field, more particularly to a kind of near field wireless awakening receiver.
Background technology
Conventional needle mainly uses the technologies such as radar velocity measurement, video capture, image recognition to vehicular traffic act of violating regulations, to having
The motor vehicle of licence plate carries out break in traffic rules and regulations and is identified, judges.
However, break in traffic rules and regulations identification technology of the existing motor vehicle based on radar and video technique, can not be applied to non-machine
In the break in traffic rules and regulations automatic identification and judgement of motor-car.If near field wireless awakening receiver can be combined with signal transmission,
Then to non-motor vehicle identification, test the speed, break in traffic rules and regulations judge have great significance.
Utility model content
Technical problem to be solved in the utility model is：A kind of near field wireless awakening that can carry out data acquisition is provided
Receiver, and can be according to actual use demand adjustment monitoring range.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：
A kind of near field wireless awakening receiver, including housing, in addition to fixture, lid and rfid device, it is described
Housing is provided with the accommodating chamber to cave inward, and the fixture is connected with the one end of housing away from accommodating chamber, the lid and shell
Body is detachably connected close to one end of accommodating chamber, and the rfid device is in the accommodating chamber, the radio frequency identification dress
Put includes single chip circuit, radio frequency electrical including reduction voltage circuit, the first insert row, the second insert row and Anneta module, the Anneta module
Road, power control circuit and antenna,
The radio circuit includes the radio transmitting and receiving chip and first crystal oscillator of connection, and the single chip circuit includes
The single-chip microcomputer of connection and the second crystal oscillator, the power control circuit include digital pad, radio frequency front end chip, paster
Triode, first switch chip and second switch chip, the digital pad, first switch chip, radio frequency front end chip and
Second switch chip is sequentially connected, and the paster triode is connected with first switch chip and second switch chip respectively, described
Single-chip microcomputer is connected with radio transmitting and receiving chip and digital pad respectively, and the digital pad connects with radio circuit and antenna respectively
Connect,
The output end of the reduction voltage circuit connects the first insert row and the second insert row respectively, and the first insert row connects the second insert row,
Second insert row is connected with Anneta module.
Further, the model STM8L051F3P6 of the single-chip microcomputer, the model of the radio transmitting and receiving chip
LT8920, the model HMC274QS16 of the digital pad, the model RFX2401C of the radio frequency front end chip are described
The model of the model MBT3904DW1T1G of paster triode, first switch chip and second switch chip is respectively AS179-
92。
Further, the power control circuit also includes the 13rd electric capacity, the 14th electric capacity, the 18th electric capacity, second
Resistance, 3rd resistor, the 4th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the 13rd resistance, the 14th resistance, the tenth
Five resistance, the 16th resistance, the first pin of the paster triode and the 4th pin are grounded, the second pin of paster triode
Connect one end of the 14th resistance, the 3rd pin of the other end connection single-chip microcomputer of the 14th resistance, the 3rd of paster triode the
Pin connects the 4th pin and the 16th resistance of the 6th pin of first switch chip, second switch chip, paster three respectively
5th pin of pole pipe connects one end of the 13rd resistance, and the other end of the 13rd resistance connects the 20th pin of single-chip microcomputer,
6th pin of paster triode connects the 6th pin and the 15th resistance of radio frequency front end chip, the connection of the 15th resistance respectively
16th resistance, the 3rd pin of digital pad are connected to one end of second resistance, and the other end of second resistance is connected to list
15th pin of piece machine, the 4th pin of digital pad are connected to one end of 3rd resistor, and the other end of 3rd resistor connects
Be connected to the 16th pin of single-chip microcomputer, the 5th pin of digital pad connects one end of the 4th resistance, the 4th resistance it is another
End is connected to the 17th pin of single-chip microcomputer, and the 6th pin of digital pad is connected to one end of the 8th resistance, the 8th resistance
Other end connection single-chip microcomputer the 18th pin, the 7th pin of digital pad is connected to one end of the 9th resistance, the 9th
The resistance other end is connected to the 19th pin of single-chip microcomputer, and the 9th pin of digital pad connects the 7th resistance and the tenth respectively
One end of eight electric capacity, the other end of the 7th resistance are connected to the second insert row, the first pin of digital pad, second pin,
Eight pins, the tenth pin, the 11st pin, the 12nd pin, the 13rd pin, the 14th pin, the 15th pin connect respectively
Ground, the 16th pin of digital pad connect one end of the 14th electric capacity, and the other end of the 14th electric capacity is connected to antenna, institute
The 5th pin for stating second switch chip connects one end of the 13rd electric capacity, the other end connection wireless receiving and dispatching core of the 13rd electric capacity
Piece.
Further, the radio circuit also includes the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electricity
Appearance, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity and first resistor, one end of first electric capacity connect respectively the second insert row and
One end of first resistor, the other end ground connection of the first electric capacity, the other end of first resistor connect the of radio transmitting and receiving chip respectively
The other end of one end of 12 pins, one end of the second electric capacity and the 3rd electric capacity, the other end of the second electric capacity and the 3rd electric capacity
It is grounded respectively, one end connects wirelessly respectively after the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity and the 8th electric capacity parallel connection
The 3rd pin, the 5th pin, the 8th pin and the 11st pin of transceiving chip, other end ground connection, first crystal oscillator
First pin connects the 6th pin of radio transmitting and receiving chip, and the second pin of first crystal oscillator and the 3rd pin connect respectively
Ground, the 3rd pin of first crystal oscillator are connected to the 7th pin of radio transmitting and receiving chip, and the first of radio transmitting and receiving chip draws
Pin connects the 11st pin of single-chip microcomputer, and the 9th pin of radio transmitting and receiving chip connects the other end of the 13rd electric capacity, nothing
Tenth pin of the second pin connection single-chip microcomputer of line transceiving chip, the of the 4th pin connection single-chip microcomputer of radio transmitting and receiving chip
Nine pins, the 14th pin of the 13rd pin connection single-chip microcomputer of radio transmitting and receiving chip, the 14th of radio transmitting and receiving chip draws
Pin connects the 13rd pin of single-chip microcomputer, and the tenth pin of radio transmitting and receiving chip and the 15th pin are grounded respectively, wireless receiving and dispatching
12 pins of the 16 pins connection single-chip microcomputer of chip.
Further, the single chip circuit also includes the 3rd insert row, the 4th insert row, the 9th electric capacity, the 11st electric capacity, the
12 electric capacity, the 17th resistance and the 18th resistance, the 3rd insert row are used to be connected with host computer, and the first of the 3rd insert row draws
Pin connects the 4th pin of single-chip microcomputer, the second pin ground connection of the 3rd insert row, and the 3rd pin of the 3rd insert row connects single-chip microcomputer
3rd pin, the 4th pin of the 3rd insert row connect the second insert row, and the 4th insert row is external interface, and the first of the 4th insert row draws
Pin and second pin are grounded respectively, and the 3rd pin of the 4th insert row connects the second insert row, the 20th pin connection of the 4th insert row
First pin of single-chip microcomputer, the second pin of the 21st pin connection single-chip microcomputer of the 4th insert row, the 20th of the 4th insert row the
Two pins connect the 4th pin of radio transmitting and receiving chip, and the first pin of the second crystal oscillator connects the 5th of single-chip microcomputer the respectively
One end of pin and the 12nd electric capacity, the other end ground connection of the 12nd electric capacity, the second pin of the second crystal oscillator and the 4th
Pin is grounded respectively, the 3rd pin of the second crystal oscillator connect respectively single-chip microcomputer the 6th pin and the 11st electric capacity one
End, the 11st electric capacity other end ground connection, the 9th electric capacity one end connection single-chip microcomputer the 8th pin, the 9th electric capacity it is another
End ground connection, one end of the 17th resistance connect the second insert row, and the other end of the 17th resistance connects the 19th pin of single-chip microcomputer,
One end of 18th resistance connects the second insert row, the 18th pin of the other end connection single-chip microcomputer of the 18th resistance.
Further, the reduction voltage circuit include chip model be LD05-20B05 power supply chip, the 31st electric capacity,
32nd electric capacity, the 33rd electric capacity, the 34th electric capacity, the 35th electric capacity, the 36th electric capacity, the 37th electricity
Appearance, the 38th electric capacity, the 39th electric capacity, the 40th electric capacity, inductance, voltage-regulator diode, the 11st resistance and the 12nd electricity
Resistance, the first pin of the power supply chip connect one end of the 11st resistance and one end of the 12nd resistance, power supply chip respectively
Second pin connect the 12nd resistance the other end, the other end of the 11st resistance and the other end of the 12nd resistance are used respectively
The 31st electric capacity, the 32nd electric capacity, the 33rd are connected respectively in connection zero line and live wire, the 3rd pin of power supply chip
One end of electric capacity, voltage-regulator diode and inductance, one end that the other end of inductance connects respectively, the 4th pin of power supply chip,
31 electric capacity, the 32nd electric capacity, the 33rd electric capacity, voltage-regulator diode, the 34th electric capacity, the 35th electric capacity,
36 electric capacity, the 37th electric capacity, the 38th electric capacity, the 39th electric capacity and the 40th electric capacity other end are grounded respectively.
Further, the other end of the 11st resistance and the other end of the 12nd resistance connect zero respectively by the 5th insert row
Line and live wire.
Further, the first pin ground connection of first insert row, the second pin of the first insert row and the 9th pin difference
Connecting the 4th pin of the second insert row, the 3rd pin of the first insert row connects the 8th pin of the second insert row, and the of the first insert row
Four pins connect the 9th pin of the second insert row, and the 7th pin of the first insert row connects the 22nd pin of the second insert row, the
The first pin and second pin of two insert rows are grounded respectively, and the 3rd pin of the second insert row is used to connect the another of the inductance
End.
The beneficial effects of the utility model are：Lid is detachably connected with housing, facilitates the installation of radio-frequency apparatus device
And dismounting, the first insert row are used to debug, the second insert row is used to install wireless module, is easy to production test and installation to safeguard, passes through
It is single chip circuit, radio circuit and power control circuit power supply after reduction voltage circuit carries out photovoltaic conversion, when sending signal, letter
Number reach digital pad from radio transmitting and receiving chip, sent after power amplification or decay from antenna, during reception signal, signal from
Antenna reaches digital pad, then reaches single-chip microcomputer through radio transmitting and receiving chip, so as to realize data interaction.Pass through Power Control electricity
Road controls the power of radio circuit, so as to adjust the signal transmission distance of antenna, realizes and adjusts monitoring according to actual use demand
Scope.
Brief description of the drawings
Fig. 1 is the structural representation of the near field wireless awakening receiver of the utility model embodiment；
Fig. 2 is the power control circuit of near field wireless awakening receiver and the circuit of antenna of the utility model embodiment one
Figure；
Fig. 3 is the circuit diagram of the radio circuit of the near field wireless awakening receiver of the utility model embodiment one；
Fig. 4 is the circuit diagram of the single chip circuit of the near field wireless awakening receiver of the utility model embodiment one；
Fig. 5 is the circuit diagram of the mu balanced circuit of the near field wireless awakening receiver of the utility model embodiment one.
Label declaration：
1st, housing；11st, accommodating chamber；2nd, fixture；3rd, lid；4th, rfid device.
Embodiment
For detailed description technology contents of the present utility model, the objects and the effects, below in conjunction with embodiment and match somebody with somebody
Accompanying drawing is closed to be explained in detail.
The design of the utility model most critical is：Rfid device is set in housing, and rfid device includes
Power control circuit, the watt level of radio circuit is controlled, to adjust the detection range of near field wireless awakening receiver.
Referring to Fig. 1, a kind of near field wireless awakening receiver of the utility model offer, including housing, in addition to fixture,
Lid and rfid device, the housing are provided with the accommodating chamber to cave inward, and the fixture is with housing away from accommodating chamber
One end connection, the lid is detachably connected with housing close to one end of accommodating chamber, described in the rfid device is located at
In accommodating chamber, the rfid device includes reduction voltage circuit, the first insert row, the second insert row and Anneta module, the antenna mould
Block includes single chip circuit, radio circuit, power control circuit and antenna,
The radio circuit includes the radio transmitting and receiving chip and first crystal oscillator of connection, and the single chip circuit includes
The single-chip microcomputer of connection and the second crystal oscillator, the power control circuit include digital pad, radio frequency front end chip, paster
Triode, first switch chip and second switch chip, the digital pad, first switch chip, radio frequency front end chip and
Second switch chip is sequentially connected, and the paster triode is connected with first switch chip and second switch chip respectively, described
Single-chip microcomputer is connected with radio transmitting and receiving chip and digital pad respectively, and the digital pad connects with radio circuit and antenna respectively
Connect,
The output end of the reduction voltage circuit connects the first insert row and the second insert row respectively, and the first insert row connects the second insert row,
Second insert row is connected with Anneta module.
It was found from foregoing description, the beneficial effects of the utility model are：Housing is detachably connected with lid, facilitates radio frequency
The assembly and disassembly of identification device, wireless module are installed by insert row, have the advantages of being easy to production test and installation and maintenance.Radio frequency identification
Device has the function of Power Control, can be according to actual use demand regulation monitoring range.
Further, the model STM8L051F3P6 of the single-chip microcomputer, the model of the radio transmitting and receiving chip
LT8920, the model HMC274QS16 of the digital pad, the model RFX2401C of the radio frequency front end chip are described
The model of the model MBT3904DW1T1G of paster triode, first switch chip and second switch chip is respectively AS179-
92。
Further, the power control circuit also includes the 13rd electric capacity, the 14th electric capacity, the 18th electric capacity, second
Resistance, 3rd resistor, the 4th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the 13rd resistance, the 14th resistance, the tenth
Five resistance, the 16th resistance, the first pin of the paster triode and the 4th pin are grounded, the second pin of paster triode
Connect one end of the 14th resistance, the 3rd pin of the other end connection single-chip microcomputer of the 14th resistance, the 3rd of paster triode the
Pin connects the 4th pin and the 16th resistance of the 6th pin of first switch chip, second switch chip, paster three respectively
5th pin of pole pipe connects one end of the 13rd resistance, and the other end of the 13rd resistance connects the 20th pin of single-chip microcomputer,
6th pin of paster triode connects the 6th pin and the 15th resistance of radio frequency front end chip, the connection of the 15th resistance respectively
16th resistance, the 3rd pin of digital pad are connected to one end of second resistance, and the other end of second resistance is connected to list
15th pin of piece machine, the 4th pin of digital pad are connected to one end of 3rd resistor, and the other end of 3rd resistor connects
Be connected to the 16th pin of single-chip microcomputer, the 5th pin of digital pad connects one end of the 4th resistance, the 4th resistance it is another
End is connected to the 17th pin of single-chip microcomputer, and the 6th pin of digital pad is connected to one end of the 8th resistance, the 8th resistance
Other end connection single-chip microcomputer the 18th pin, the 7th pin of digital pad is connected to one end of the 9th resistance, the 9th
The resistance other end is connected to the 19th pin of single-chip microcomputer, and the 9th pin of digital pad connects the 7th resistance and the tenth respectively
One end of eight electric capacity, the other end of the 7th resistance are connected to the second insert row, the first pin of digital pad, second pin,
Eight pins, the tenth pin, the 11st pin, the 12nd pin, the 13rd pin, the 14th pin, the 15th pin connect respectively
Ground, the 16th pin of digital pad connect one end of the 14th electric capacity, and the other end of the 14th electric capacity is connected to antenna, institute
The 5th pin for stating second switch chip connects one end of the 13rd electric capacity, the other end connection wireless receiving and dispatching core of the 13rd electric capacity
Piece.
Further, the radio circuit also includes the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electricity
Appearance, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity and first resistor, one end of first electric capacity connect respectively the second insert row and
One end of first resistor, the other end ground connection of the first electric capacity, the other end of first resistor connect the of radio transmitting and receiving chip respectively
The other end of one end of 12 pins, one end of the second electric capacity and the 3rd electric capacity, the other end of the second electric capacity and the 3rd electric capacity
It is grounded respectively, one end connects wirelessly respectively after the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity and the 8th electric capacity parallel connection
The 3rd pin, the 5th pin, the 8th pin and the 11st pin of transceiving chip, other end ground connection, first crystal oscillator
First pin connects the 6th pin of radio transmitting and receiving chip, and the second pin of first crystal oscillator and the 3rd pin connect respectively
Ground, the 3rd pin of first crystal oscillator are connected to the 7th pin of radio transmitting and receiving chip, and the first of radio transmitting and receiving chip draws
Pin connects the 11st pin of single-chip microcomputer, and the 9th pin of radio transmitting and receiving chip connects the other end of the 13rd electric capacity, nothing
Tenth pin of the second pin connection single-chip microcomputer of line transceiving chip, the of the 4th pin connection single-chip microcomputer of radio transmitting and receiving chip
Nine pins, the 14th pin of the 13rd pin connection single-chip microcomputer of radio transmitting and receiving chip, the 14th of radio transmitting and receiving chip draws
Pin connects the 13rd pin of single-chip microcomputer, and the tenth pin of radio transmitting and receiving chip and the 15th pin are grounded respectively, wireless receiving and dispatching
12 pins of the 16 pins connection single-chip microcomputer of chip.
Further, the single chip circuit also includes the 3rd insert row, the 4th insert row, the 9th electric capacity, the 11st electric capacity, the
12 electric capacity, the 17th resistance and the 18th resistance, the 3rd insert row are used to be connected with host computer, and the first of the 3rd insert row draws
Pin connects the 4th pin of single-chip microcomputer, the second pin ground connection of the 3rd insert row, and the 3rd pin of the 3rd insert row connects single-chip microcomputer
3rd pin, the 4th pin of the 3rd insert row connect the second insert row, and the 4th insert row is external interface, and the first of the 4th insert row draws
Pin and second pin are grounded respectively, and the 3rd pin of the 4th insert row connects the second insert row, the 20th pin connection of the 4th insert row
First pin of single-chip microcomputer, the second pin of the 21st pin connection single-chip microcomputer of the 4th insert row, the 20th of the 4th insert row the
Two pins connect the 4th pin of radio transmitting and receiving chip, and the first pin of the second crystal oscillator connects the 5th of single-chip microcomputer the respectively
One end of pin and the 12nd electric capacity, the other end ground connection of the 12nd electric capacity, the second pin of the second crystal oscillator and the 4th
Pin is grounded respectively, the 3rd pin of the second crystal oscillator connect respectively single-chip microcomputer the 6th pin and the 11st electric capacity one
End, the 11st electric capacity other end ground connection, the 9th electric capacity one end connection single-chip microcomputer the 8th pin, the 9th electric capacity it is another
End ground connection, one end of the 17th resistance connect the second insert row, and the other end of the 17th resistance connects the 19th pin of single-chip microcomputer,
One end of 18th resistance connects the second insert row, the 18th pin of the other end connection single-chip microcomputer of the 18th resistance.
Further, the reduction voltage circuit include chip model be LD05-20B05 power supply chip, the 31st electric capacity,
32nd electric capacity, the 33rd electric capacity, the 34th electric capacity, the 35th electric capacity, the 36th electric capacity, the 37th electricity
Appearance, the 38th electric capacity, the 39th electric capacity, the 40th electric capacity, inductance, voltage-regulator diode, the 11st resistance and the 12nd electricity
Resistance, the first pin of the power supply chip connect one end of the 11st resistance and one end of the 12nd resistance, power supply chip respectively
Second pin connect the 12nd resistance the other end, the other end of the 11st resistance and the other end of the 12nd resistance are used respectively
The 31st electric capacity, the 32nd electric capacity, the 33rd are connected respectively in connection zero line and live wire, the 3rd pin of power supply chip
One end of electric capacity, voltage-regulator diode and inductance, one end that the other end of inductance connects respectively, the 4th pin of power supply chip,
31 electric capacity, the 32nd electric capacity, the 33rd electric capacity, voltage-regulator diode, the 34th electric capacity, the 35th electric capacity,
36 electric capacity, the 37th electric capacity, the 38th electric capacity, the 39th electric capacity and the 40th electric capacity other end are grounded respectively.
Further, the other end of the 11st resistance and the other end of the 12nd resistance connect zero respectively by the 5th insert row
Line and live wire.
It was found from foregoing description, reduction voltage circuit connects exchange input by the 5th insert row, and wiring is simple, power supply safety.
Further, the first pin ground connection of first insert row, the second pin of the first insert row and the 9th pin difference
Connecting the 4th pin of the second insert row, the 3rd pin of the first insert row connects the 8th pin of the second insert row, and the of the first insert row
Four pins connect the 9th pin of the second insert row, and the 7th pin of the first insert row connects the 22nd pin of the second insert row, the
The first pin and second pin of two insert rows are grounded respectively, and the 3rd pin of the second insert row is used to connect the another of the inductance
End.
Fig. 1 to Fig. 5 is refer to, embodiment one of the present utility model is：
A kind of near field wireless awakening receiver, including housing 1, fixture 2, lid 3 and rfid device 4, the shell
Body 1 is provided with the accommodating chamber 11 to cave inward, and the fixture 2 is connected with the one end of housing 1 away from accommodating chamber 11, the lid
3 are detachably connected with housing 1 close to one end of accommodating chamber 11, and the rfid device 4 is described in the accommodating chamber 11
Rfid device 4 includes reduction voltage circuit, the first insert row J1, the second insert row J2, the 5th insert row J5 and Anneta module, the antenna
Module includes single chip circuit, radio circuit, power control circuit and antenna.
The reduction voltage circuit includes the power supply chip U7 that chip model is LD05-20B05, the 31st electric capacity C1, the 3rd
12 electric capacity C2, the 33rd electric capacity C3, the 34th electric capacity C4, the 35th electric capacity C5, the 36th electric capacity C6, the 30th
Seven electric capacity C7, the 38th electric capacity C8, the 39th electric capacity C9, the 40th electric capacity C40, inductance L1, voltage-regulator diode D1, the tenth
One resistance R11 and the 12nd resistance R12, the power supply chip U7 the first pin connect the 11st resistance R11 one end respectively
With the 12nd resistance R12 one end, power supply chip U7 second pin connects the 12nd resistance R12 other end, the 11st electricity
The other end of the other end and the 12nd resistance R12 that hinder R11 connects zero line and live wire respectively by the 5th insert row J5, power supply chip
U7 the 3rd pin connects the 31st electric capacity C31, the 32nd electric capacity C32, the 33rd electric capacity C33, the pole of voltage stabilizing two respectively
Pipe D1 and inductance L1 one end, one end that the inductance L1 other end connects respectively, power supply chip U7 the 4th pin, the 31st
Electric capacity C31, the 32nd electric capacity C32, the 33rd electric capacity C33, voltage-regulator diode D1, the 34th electric capacity C34, the 35th
Electric capacity C35, the 36th electric capacity C36, the 37th electric capacity C37, the 38th electric capacity C38, the 39th electric capacity C39 and the 4th
The ten electric capacity C40 other ends are grounded respectively.
The second pin of the first insert row J1 and the 9th pin connect the second insert row J2 the 4th pin respectively, and first inserts
The 3rd pin for arranging J1 connects the second insert row J2 the 8th pin, and the first insert row J1 the 4th pin connects the of the second insert row J2
Nine pins, the first insert row J1 the 7th pin connect the second insert row J2 the 22nd pin, the second insert row J2 the first pin
It is grounded respectively with second pin, the second insert row J2 the 3rd pin is used for the other end for connecting the inductance L1.
The power control circuit 4 includes the digital pad U3 that chip model is HMC274QS16, chip model is
Paster triode Q1 that RFX2401C radio frequency front end chip U4, chip model are MBT3904DW1T1G, chip model are
AS179-92 first switch chip U5, the second switch chip U6 that chip model is AS179-92, the 13rd electric capacity C13, the
14 electric capacity C14, the 18th electric capacity C18, second resistance R2,3rd resistor R3, the 4th resistance R4, the 7th resistance R7, the 8th electricity
R8, the 9th resistance R9, the 13rd resistance R13, the 14th resistance R14, the 15th resistance R15, the 16th resistance R16 are hindered, it is described
Paster triode Q1 the first pin and the 4th pin are grounded, and paster triode Q1 second pin connects the 14th resistance R14
One end, the 14th resistance R14 other end connection single-chip microcomputer U2 the 3rd pin, paster triode Q1 the 3rd pin difference
Connect first switch chip U5 the 6th pin, second switch chip U6 the 4th pin and the 16th resistance R16, the pole of paster three
Pipe Q1 the 5th pin connects the 13rd resistance R13 one end, and the 13rd resistance R13 other end connects the second of single-chip microcomputer U2
Ten pins, paster triode Q1 the 6th pin connect radio frequency front end chip U4 the 6th pin and the 15th resistance R15 respectively,
The resistance R16 of 15th resistance R15 connections the 16th, digital pad U3 the 3rd pin are connected to second resistance R2 one end,
The second resistance R2 other end is connected to single-chip microcomputer U2 the 15th pin, and digital pad U3 the 4th pin is connected to the 3rd
Resistance R3 one end, the 3rd resistor R3 other end are connected to single-chip microcomputer U2 the 16th pin, and the 5th of digital pad U3 the
Pin connects the 4th resistance R4 one end, and the 4th resistance R4 other end is connected to single-chip microcomputer U2 the 17th pin, and numeral declines
The 6th pin for subtracting device U3 is connected to the 8th resistance R8 one end, and the 8th resistance R8 other end connects the 18th of single-chip microcomputer U2 the
Pin, digital pad U3 the 7th pin are connected to the 9th resistance R9 one end, and the 9th resistance R9 other ends are connected to monolithic
Machine U2 the 19th pin, digital pad U3 the 9th pin connect the one of the 7th resistance R7 and the 18th electric capacity C18 respectively
End, the 7th resistance R7 other end are connected to the second insert row J2 the 4th pin, and digital pad U3 the first pin, second are drawn
Pin, the 8th pin, the tenth pin, the 11st pin, the 12nd pin, the 13rd pin, the 14th pin, the 15th pin point
It is not grounded, digital pad U3 the 16th pin connects the 14th electric capacity C14 one end, the 14th electric capacity C14 other end
Connect antenna connector E1 the 4th pin, antenna connector E1 connections antenna 5, the 5th pin of the second switch chip U6
Connect one end of the 13rd electric capacity, the 13rd electric capacity C13 other end connection radio transmitting and receiving chip U1.
The radio circuit 3 includes the radio transmitting and receiving chip U1 that chip model is LT8920, frequency of oscillation is 12MHz the
One crystal oscillator Y1, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th electric capacity C5, the 6th electricity
Hold C6, the 7th electric capacity C7, the 8th electric capacity C8 and first resistor R1, one end of the first electric capacity C1 and connect the second insert row J2 respectively
The 4th pin and first resistor R1 one end, the first electric capacity C1 other end ground connection, the first resistor R1 other end connects respectively
Meet radio transmitting and receiving chip U1 the 12nd pin, the second electric capacity C2 one end and the 3rd electric capacity C3 one end, the second electric capacity C2
The other end of the other end and the 3rd electric capacity C3 be grounded respectively, the 4th electric capacity C4, the 5th electric capacity C5, the 6th electric capacity C6, the 7th electricity
Hold the 3rd pin, the 5th pin, the 8th pin that one end after C7 and the 8th electric capacity C8 parallel connections connects radio transmitting and receiving chip U1 respectively
With the 11st pin, other end ground connection, the 6th of first crystal oscillator Y1 the first pin connection radio transmitting and receiving chip U1 draws
Pin, first crystal oscillator Y1 second pin and the 3rd pin are grounded respectively, and first crystal oscillator Y1 the 3rd pin connects
Radio transmitting and receiving chip U1 the 7th pin is connected to, the 11st of radio transmitting and receiving chip U1 the first pin connection single-chip microcomputer U2 draws
Pin, radio transmitting and receiving chip U1 the 9th pin connection the 13rd electric capacity C13 other end, the second of radio transmitting and receiving chip U1
Pin connection single-chip microcomputer U2 the tenth pin, radio transmitting and receiving chip U1 the 4th pin connection single-chip microcomputer U2 the 9th pin, nothing
Line transceiving chip U1 the 13rd pin connection single-chip microcomputer U2 the 14th pin, radio transmitting and receiving chip U1 the 14th pin connect
Single-chip microcomputer U2 the 13rd pin is connect, radio transmitting and receiving chip U1 the tenth pin and the 15th pin are grounded respectively, wireless receiving and dispatching
Chip U1 16 pins connection single-chip microcomputer U2 12 pins.
The single chip circuit 2 includes the single-chip microcomputer U2 that chip model is STM8L051F3P6, frequency of oscillation is
11.0592MHz the second crystal oscillator Y1, the 3rd insert row J3, the 4th insert row J4, the 9th electric capacity C9, the 11st electric capacity C11,
12nd electric capacity C12, the 17th resistance R17 and the 18th resistance R18, the 3rd insert row J3 are used to be connected with host computer, the
Three insert row J3 the first pin connection single-chip microcomputer U2 the 4th pin, the 3rd insert row J3 second pin ground connection, the 3rd insert row J3
The 3rd pin connection single-chip microcomputer U2 the 3rd pin, the 3rd insert row J3 the 4th pin connects the 4th of the second insert row J2 and draws
Pin, the 4th insert row J4 are external interface, and the 4th insert row J4 the first pin and second pin are grounded respectively, the 4th insert row J4's
3rd pin connects the other end of the inductance L1, and the 4th insert row J4 the 20th pin connects single-chip microcomputer U2 the first pin,
4th insert row J4 the 21st pin connection single-chip microcomputer U2 second pin, the 4th insert row J4 the 22nd pin connection nothing
Line transceiving chip U1 the 4th pin, the second crystal oscillator Y2 the first pin connect respectively single-chip microcomputer U2 the 5th pin and
12nd electric capacity C12 one end, the 12nd electric capacity C12 other end ground connection, the second crystal oscillator Y2 second pin and the
Four pins are grounded respectively, and the second crystal oscillator Y2 the 3rd pin connects single-chip microcomputer U2 the 6th pin and the 11st electricity respectively
Hold C11 one end, the 11st electric capacity C11 other end ground connection, the 8th of the 9th electric capacity C9 one end connection single-chip microcomputer U2 draws
Pin, the 9th electric capacity U9 other end ground connection, the 17th resistance R17 the second insert row J2 of one end connection the 4th pin, the 17th
Resistance R17 other end connection single-chip microcomputer U2 the 19th pin, the 18th resistance R18 one end connect the of the second insert row J2
Four pins, the 18th resistance R18 other end connection single-chip microcomputer U2 the 18th pin.
Above-mentioned near field wireless awakening receiver, applied on highway in real time monitoring car speed when, pass through fixture
Fixed with ground, the label information of vehicle is read by radio circuit, so as to realize the detection to car speed.Pass through power control
The pad value (i.e. receiving sensitivity) of circuit control radio circuit processed, so as to adjust the signal transmitting and receiving distance of radio circuit, is realized
Adjust the purpose of detection range.
In summary, wireless awakening receiver near field provided by the utility model, have and be convenient to mount and dismount, be easy to debug and tie up
That repaiies is wired, and label data can be acquired, and also by adding power control circuit, the transmitting-receiving power to wireless signal enters
Row amplification and adjustable attenuation, can adjust acquisition range according to the actual requirements so that data acquisition is more flexible, effective.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalents made using the utility model specification and accompanying drawing content, or directly or indirectly it is used in the technology neck of correlation
Domain, similarly it is included in scope of patent protection of the present utility model.
Claims (8)
1. a kind of near field wireless awakening receiver, including housing, it is characterised in that also including fixture, lid and radio frequency identification
Device, the housing are provided with the accommodating chamber to cave inward, and the fixture is connected with the one end of housing away from accommodating chamber, described
Lid is detachably connected with housing close to one end of accommodating chamber, and the rfid device is described to penetrate in the accommodating chamber
Frequency identification device includes reduction voltage circuit, the first insert row, the second insert row and Anneta module, and it is electromechanical that the Anneta module includes monolithic
Road, radio circuit, power control circuit and antenna,
The radio circuit includes the radio transmitting and receiving chip and first crystal oscillator of connection, and the single chip circuit includes connection
Single-chip microcomputer and the second crystal oscillator, the power control circuit include digital pad, radio frequency front end chip, the pole of paster three
Pipe, first switch chip and second switch chip, the digital pad, first switch chip, radio frequency front end chip and second
Switch chip is sequentially connected, and the paster triode is connected with first switch chip and second switch chip respectively, the monolithic
Machine is connected with radio transmitting and receiving chip and digital pad respectively, and the digital pad is connected with radio circuit and antenna respectively,
The output end of the reduction voltage circuit connects the first insert row and the second insert row respectively, and the first insert row connects the second insert row, and second
Insert row is connected with Anneta module.
2. wireless awakening receiver near field according to claim 1, it is characterised in that the model of the single-chip microcomputer
STM8L051F3P6, the model LT8920 of the radio transmitting and receiving chip, the model HMC274QS16 of the digital pad,
The model RFX2401C of the radio frequency front end chip, the model MBT3904DW1T1G of the paster triode, first switch
The model of chip and second switch chip is respectively AS179-92.
3. wireless awakening receiver near field according to claim 2, it is characterised in that the power control circuit also includes
13rd electric capacity, the 14th electric capacity, the 18th electric capacity, second resistance, 3rd resistor, the 4th resistance, the 7th resistance, the 8th electricity
Resistance, the 9th resistance, the 13rd resistance, the 14th resistance, the 15th resistance, the 16th resistance, the first of the paster triode
Pin and the 4th pin are grounded, and the second pin of paster triode connects one end of the 14th resistance, the 14th resistance it is another
3rd pin of end connection single-chip microcomputer, the 3rd pin of paster triode connect the 6th pin of first switch chip, the respectively
4th pin of two switch chips and the 16th resistance, the 5th pin of paster triode connect one end of the 13rd resistance, the
20th pin of the other end connection single-chip microcomputer of 13 resistance, the 6th pin of paster triode connect radio-frequency front-end core respectively
6th pin of piece and the 15th resistance, the 15th resistance connect the 16th resistance, and the 3rd pin of digital pad is connected to
One end of second resistance, the other end of second resistance are connected to the 15th pin of single-chip microcomputer, the 4th pin of digital pad
It is connected to one end of 3rd resistor, the other end of 3rd resistor is connected to the 16th pin of single-chip microcomputer, and the of digital pad
Five pins connect one end of the 4th resistance, and the other end of the 4th resistance is connected to the 17th pin of single-chip microcomputer, digital pad
The 6th pin be connected to one end of the 8th resistance, the 18th pin of the other end connection single-chip microcomputer of the 8th resistance, numeral declines
The 7th pin for subtracting device is connected to one end of the 9th resistance, and the 9th resistance other end is connected to the 19th pin of single-chip microcomputer, number
9th pin of word attenuator connects one end of the 7th resistance and the 18th electric capacity respectively, and the other end of the 7th resistance is connected to
Two insert rows, the first pin of digital pad, second pin, the 8th pin, the tenth pin, the 11st pin, the 12nd pin,
13rd pin, the 14th pin, the 15th pin are grounded respectively, and the 16th pin of digital pad connects the 14th electric capacity
One end, the other end of the 14th electric capacity is connected to antenna, and the 5th pin of the second switch chip connects the 13rd electric capacity
One end, the 13rd electric capacity the other end connection radio transmitting and receiving chip.
4. wireless awakening receiver near field according to claim 3, it is characterised in that the radio circuit also includes first
Electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity and the first electricity
Resistance, one end of first electric capacity connect one end of the second insert row and first resistor respectively, and the other end of the first electric capacity is grounded, the
The other end of one resistance connects the one of the 12nd pin of radio transmitting and receiving chip, one end of the second electric capacity and the 3rd electric capacity respectively
End, the other end of the other end of the second electric capacity and the 3rd electric capacity are grounded respectively, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th
One end connects the 3rd pin, the 5th pin, the 8th pin and of radio transmitting and receiving chip respectively after electric capacity and the 8th electric capacity parallel connection
11 pins, other end ground connection, the 6th pin of the first pin connection radio transmitting and receiving chip of first crystal oscillator, first is brilliant
The second pin of oscillation body device and the 3rd pin are grounded respectively, and the 3rd pin of first crystal oscillator is connected to wireless receiving and dispatching core
7th pin of piece, the 11st pin of the first pin connection single-chip microcomputer of radio transmitting and receiving chip, the 9th of radio transmitting and receiving chip the
Pin connects the other end of the 13rd electric capacity, the tenth pin of the second pin connection single-chip microcomputer of radio transmitting and receiving chip, nothing
9th pin of the 4th pin connection single-chip microcomputer of line transceiving chip, the 13rd pin connection single-chip microcomputer of radio transmitting and receiving chip
14th pin, the 13rd pin of the 14th pin connection single-chip microcomputer of radio transmitting and receiving chip, the tenth of radio transmitting and receiving chip the
Pin and the 15th pin are grounded respectively, 12 pins of the 16 pins connection single-chip microcomputer of radio transmitting and receiving chip.
5. wireless awakening receiver near field according to claim 4, it is characterised in that the single chip circuit also includes the
Three insert rows, the 4th insert row, the 9th electric capacity, the 11st electric capacity, the 12nd electric capacity, the 17th resistance and the 18th resistance, described
Three insert rows are used to be connected with host computer, the 4th pin of the first pin connection single-chip microcomputer of the 3rd insert row, and the second of the 3rd insert row
Pin is grounded, and the 3rd pin of the 3rd pin connection single-chip microcomputer of the 3rd insert row, the 4th pin connection second of the 3rd insert row is inserted
Row, the 4th insert row is external interface, and the first pin and second pin of the 4th insert row are grounded respectively, and the 3rd of the 4th insert row draws
Pin connects the second insert row, and the first pin of the 20th pin connection single-chip microcomputer of the 4th insert row, the 21st of the 4th insert row draws
The second pin of pin connection single-chip microcomputer, the 4th pin of the 22nd pin connection radio transmitting and receiving chip of the 4th insert row, second
First pin of crystal oscillator connects the 5th pin and one end of the 12nd electric capacity of single-chip microcomputer respectively, the 12nd electric capacity it is another
One end is grounded, and the second pin of the second crystal oscillator and the 4th pin are grounded respectively, the 3rd pin of the second crystal oscillator
The 6th pin of single-chip microcomputer and one end of the 11st electric capacity, the other end ground connection of the 11st electric capacity, the 9th electric capacity are connected respectively
One end connection single-chip microcomputer the 8th pin, the other end ground connection of the 9th electric capacity, one end of the 17th resistance connects the second insert row,
19th pin of the other end connection single-chip microcomputer of the 17th resistance, the second insert row of one end connection of the 18th resistance, the 18th
18th pin of the other end connection single-chip microcomputer of resistance.
6. wireless awakening receiver near field according to claim 5, it is characterised in that the reduction voltage circuit includes chip-shaped
Number for LD05-20B05 power supply chip, the 31st electric capacity, the 32nd electric capacity, the 33rd electric capacity, the 34th electric capacity,
35th electric capacity, the 36th electric capacity, the 37th electric capacity, the 38th electric capacity, the 39th electric capacity, the 40th electric capacity,
Inductance, voltage-regulator diode, the 11st resistance and the 12nd resistance, the first pin of the power supply chip connect the 11st electricity respectively
One end of resistance and one end of the 12nd resistance, the second pin of power supply chip connect the other end of the 12nd resistance, the 11st electricity
The other end of the other end of resistance and the 12nd resistance is respectively used to connect zero line and live wire, the 3rd pin of power supply chip connect respectively
Connect one end of the 31st electric capacity, the 32nd electric capacity, the 33rd electric capacity, voltage-regulator diode and inductance, the other end of inductance
The one end connected respectively, the 4th pin of power supply chip, the 31st electric capacity, the 32nd electric capacity, the 33rd electric capacity, voltage stabilizing
Diode, the 34th electric capacity, the 35th electric capacity, the 36th electric capacity, the 37th electric capacity, the 38th electric capacity, the 3rd
19 electric capacity and the 40th electric capacity other end are grounded respectively.
7. wireless awakening receiver near field according to claim 6, it is characterised in that the other end of the 11st resistance and
The other end of 12 resistance connects zero line and live wire respectively by the 5th insert row.
8. wireless awakening receiver near field according to claim 7, it is characterised in that the first pin of first insert row
Ground connection, the second pin of the first insert row and the 9th pin connect the 4th pin of the second insert row respectively, and the 3rd of the first insert row draws
Pin connects the 8th pin of the second insert row, and the 4th pin of the first insert row connects the 9th pin of the second insert row, the first insert row
7th pin connects the 22nd pin of the second insert row, and the first pin and second pin of the second insert row are grounded respectively, and second
3rd pin of insert row is used for the other end for connecting the inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721123998.XU CN207117609U (en) | 2017-09-04 | 2017-09-04 | Near field wireless awakening receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721123998.XU CN207117609U (en) | 2017-09-04 | 2017-09-04 | Near field wireless awakening receiver |
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| Publication Number | Publication Date |
|---|---|
| CN207117609U true CN207117609U (en) | 2018-03-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311703A (en) * | 2019-07-03 | 2019-10-08 | 广州西博电子科技有限公司 | Enhanced smart gateway of internet of things |
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2017
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311703A (en) * | 2019-07-03 | 2019-10-08 | 广州西博电子科技有限公司 | Enhanced smart gateway of internet of things |
| CN110311703B (en) * | 2019-07-03 | 2021-08-24 | 广州西博电子科技有限公司 | Enhanced intelligent internet of things gateway |
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