CN108427899A - A kind of high-precision ultrahigh frequency RFID near field tag detection system - Google Patents

A kind of high-precision ultrahigh frequency RFID near field tag detection system Download PDF

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Publication number
CN108427899A
CN108427899A CN201810449204.1A CN201810449204A CN108427899A CN 108427899 A CN108427899 A CN 108427899A CN 201810449204 A CN201810449204 A CN 201810449204A CN 108427899 A CN108427899 A CN 108427899A
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feet
resistance
connect
capacitance
chip
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CN201810449204.1A
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CN108427899B (en
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庄程星
高政
胡俊杰
侯丰
吴国驭
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Hangzhou Kongtrolink Information Technology Co Ltd
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Hangzhou Kongtrolink Information Technology Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10198—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves setting parameters for the interrogator, e.g. programming parameters and operating modes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10158—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves methods and means used by the interrogation device for reliably powering the wireless record carriers using an electromagnetic interrogation field
    • G06K7/10168—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves methods and means used by the interrogation device for reliably powering the wireless record carriers using an electromagnetic interrogation field the powering being adversely affected by environmental influences, e.g. unwanted energy loss in the interrogation signal due to metallic or capacitive objects in the proximity of the interrogation device or in the proximity of the interrogated record carrier
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10297—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Artificial Intelligence (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Filters And Equalizers (AREA)
  • Transmitters (AREA)

Abstract

The invention discloses a kind of high-precision ultrahigh frequency RFID near field tag detection system, the present invention includes main control module, ultrahigh frequency RFID induction coil, variable damping system, strip line structure, impedance matching network, radio-frequency module, power module, bluetooth module, USB data interface, LED light, lighting module and buzzer module；The output end of the radio-frequency module and the input terminal of impedance matching network connect, the output end of impedance matching network is connected by the input terminal of strip line structure and variable damping system, the output end of variable damping system is connect with ultrahigh frequency RFID induction coil, and power module is powered to modules；The strip line structure is elastic material.The present invention facilitates determining investigative range, can record invalid tag；Increase bluetooth and USB data interface and exchanges data with the external world；Increase built-in lithium battery to power for whole system.

Description

A kind of high-precision ultrahigh frequency RFID near field tag detection system
Technical field
The invention belongs to communication fields, and in particular to a kind of high-precision ultrahigh frequency RFID near field tag detection system.
Background technology
With the development of economy and society, traditional RFID low frequencies, high frequency, super high frequency technique situation of standing like the legs of a tripod are beaten It is broken.Ultra-high frequency RFID technology embodies the trend of dominance.This be mainly attributed to its be widely used, fan it is numerous, cause into This rapid decrease, performance step up.However, since ultra-high frequency RFID technology is mainly used in electro-magnetic far-field, it is based on far field spoke Principle is penetrated, is inevitably influenced, identification range can not be accomplished to accurately control by the various reflections in space, refraction.In recent years Come, also has part research for the near field application of ultra-high frequency RFID technology, but for the high problem of required precision, such as：Such as What accurately distinguishes the ultrahigh frequency RFID near field tag of adjacent only 2mm, and there are no ripe solutions.
Invention content
In view of the deficiencies of the prior art, the present invention proposes a kind of high-precision ultrahigh frequency RFID near field tag detection systems.
A kind of high-precision ultrahigh frequency RFID near field tag detection system, including main control module, ultrahigh frequency RFID induction coil, Variable damping system, strip line structure, impedance matching network, radio-frequency module, power module, bluetooth module, usb data connect Mouth, LED light, lighting module and buzzer module；
The output end of the radio-frequency module and the input terminal of impedance matching network connect, the output end of impedance matching network It is connected by the input terminal of strip line structure and variable damping system, the output end and ultrahigh frequency RFID of variable damping system Induction coil connects, and power module is powered to modules；The strip line structure is elastic material.
The main control module includes radio-frequency module, main controller module, LED control module, buzzer module, illumination mould Block, bluetooth module, USB management modules, power supply control button module and label read key-press module；
The radio-frequency module includes the 5th capacitance C5, the 6th capacitance C6, the 7th capacitance C7, the 11st capacitance C11, the tenth Two capacitance C12, the 13rd capacitance C13, the 14th capacitance C14, the 15th capacitance C15, the 16th capacitance C16, the 17th capacitance C17, the 18th capacitance C18, the 21st capacitance C21, the 23rd capacitance C23, the 25th capacitance C25, the 34th electricity Hold C34, the 44th capacitance C44, the 32nd capacitance C32, the 33rd capacitance C33, the 35th capacitance C35, the 30th Six capacitance C36, the 39th capacitance C39, second resistance R2,3rd resistor R3, the 4th resistance R4, the 6th resistance R6, the 7th electricity Hinder R7, the 8th resistance R8, the 9th resistance R9, the 14th resistance R14, the 15th resistance R15, the 17th resistance R17, the 19th electricity Hinder R19, the 22nd resistance R22, the 23rd resistance R23, the second inductance L2, third inductance L3, the 4th inductance L4, the 5th electricity Feel L5, microcontroller U5, radio frequency chip U4, passive crystal oscillator chip U2, radio frequency protocol processing chip U9, conditioning chip U3, radio frequency letter Number adjust chip U7；
1 foot of the microcontroller U5 meets MCU-3.3V, 2 feet ground connection, and 3 feet meet VCC-3.3,4 feet and the 4th inductance L4's One end, radiofrequency signal adjust the 4 feet connection of chip U7, and 5 feet and the other end of the 4th inductance L4, radiofrequency signal adjust chip U7's 3 feet connect, 8 feet ground connection, 9 feet and one end of the 15th capacitance C15, one end of the 16th capacitance C16, third inductance L3 one end Connection, 10 feet connect and connect VCC-3.3, the 16th capacitance C16 with the other end of 11 feet of microcontroller U5, the 15th capacitance C15 Other end ground connection, 13 feet of microcontroller U5 connect with 1 foot of one end of the 12nd capacitance C12, passive crystal oscillator chip U2,14 feet It is connect with 3 feet of one end of the 11st capacitance C11, passive crystal oscillator chip U2, the other end of the 11st capacitance C11, the 12nd electricity Hold the 4 feet ground connection of the other end of C12,2 feet of passive crystal oscillator chip U2, passive crystal oscillator chip U2,15 feet of microcontroller U5 with it is steady Press the 4 feet connection of chip U10,16 feet with connect, 17 feet are connect with the 15th resistance one end, and 18 feet are connect with systematically GND, 19 Foot connect and connects VCC-3.3 with one end of the 18th capacitance C18, and the other end of the 18th capacitance C18 is grounded, and the 20 of microcontroller U5 Foot is connect with one end of the 7th resistance R7, and 21 feet of microcontroller U5 are connect with one end of the 9th resistance R9, and the 7th resistance R7's is another One end is connect with 5 feet of radio frequency protocol processing chip U9,3 feet of the other end and radio frequency protocol processing chip U9 of the 9th resistance R9 Connection, 22 feet are connect with 8 feet of radio frequency protocol processing chip U9, and 23 feet are connect with 7 feet of radio frequency protocol processing chip U9,24 feet It being connect with 5 feet of voltage stabilizing chip U10,25 feet connect and connect MCU-3.3V with one end of the 21st capacitance C21, and 26 feet are hanging, 27 feet are connect with 3rd resistor one end, and 28 feet are connect with the 4th resistance one end, the other end and the 17th capacitance of third inductance L3 One end of C17, the 2 feet connection of radio frequency chip U4, the other end ground connection of the 17th capacitance C17,4 feet of radio frequency chip U4 and the 4th One end connection of one end of resistance R4, the 6th resistance R6, the other end ground connection of the 6th resistance R6, another termination of the 4th resistance R4 5 feet of 28 feet of microcontroller U5, radio frequency chip U4 are connect with one end of one end of 3rd resistor R3, the 8th resistance R8, third electricity The other end ground connection of R3, the other end ground connection of the 8th resistance R8 are hindered, 6 feet of radio frequency chip U4 connect with one end of second resistance R2 It connects, the other end ground connection of second resistance R2, the 7 feet ground connection of radio frequency chip U4,8 feet and the 23rd capacitance of radio frequency chip U4 One end of C23 connects, and the other end of the 23rd capacitance C23 is connect with 1 foot of radiofrequency signal adjusting chip U7, radiofrequency signal tune 2 feet, the 5 feet ground connection of chip U7 are saved, 6 tripods are empty；9 feet of radio frequency chip U4 are connect with 4 feet of conditioning chip U3,10 feet and radio frequency 1 foot of chip U4, one end of the 5th capacitance C5, one end of the 6th capacitance C6, one end of the 7th capacitance C7, voltage stabilizing chip U10 8 Foot connect, the other end of the 5th capacitance C5, the other end of the 6th capacitance C6, the 7th capacitance C7 the other end ground connection, conditioning chip 1 foot of U3,3 feet, 5 feet, 7 feet ground connection, 2 feet, 6 tripods are empty, one end of 8 feet and the 13rd capacitance C13, one end of the second inductance L2 Connection, the other end ground connection of the 13rd capacitance C13, the other end and one end of the 14th capacitance C14, the radio frequency of the second inductance L2 connect Head input terminal connection, the other end ground connection of the 14th capacitance C14, the 0 foot ground connection of radio frequency protocol processing chip U9,2 feet and the 4th One end of 14 capacitance C44 connects, one end other end connection of the 44th capacitance C44,3 feet of radio frequency protocol processing chip U9 It is connect with one end of the 9th resistance, 4 feet ground connection, 5 feet are connect with one end of the 7th resistance, one end of 7 feet and the 17th resistance R17 Connection, 8 feet of another termination MCU-3.3V of the 17th resistance R17, radio frequency protocol processing chip U9 and the 19th resistance R19's One end connects, the 12 feet ground connection of termination a MCU-3.3V, radio frequency protocol processing chip U9 of the 19th resistance R19,13 feet and the One end of 34 capacitance C34 connects, and the other end ground connection of the 34th capacitance C34,18 feet are connect with 32 feet of microcontroller U5, 26 feet are connect with one end of 30 feet of radio frequency protocol processing chip U9, the 14th resistance R14, the other end of the 14th resistance R14 It being connect with one end of the 20th resistance, 27 feet, 28 feet and one end of the 25th capacitance C25 connect and connect MCU-3.3V, and second The other end of 15 capacitance C25 is grounded, and 31 feet of radio frequency protocol processing chip U9 are connect with one end of the 15th resistance R15, the The other end of 15 resistance R15 is connect with one end of the 21st resistance, 1 foot, 6 feet, 9 feet, 10 feet, 11 feet, 14 feet, 15 feet, 16 feet, 17 feet, 19 feet, 20 feet, 21 feet, 22 feet, 23 feet, 24 feet, 25 feet, 28 feet, 32 tripods are empty；32nd capacitance One end of C32 is grounded, and the other end connect with 1 foot of voltage stabilizing chip U10 and connect power supply VCC-BAT, and 2 feet of voltage stabilizing chip U10 connect Ground, 3 feet are connect with one end of the 35th capacitance C35, the other end ground connection of the 35th capacitance C35, and the 4 of voltage stabilizing chip U10 Foot is connect with one end of the 22nd resistance R22, and 5 feet connect and connect PA_VPD, 6 tripods with one end of the 23rd resistance R23 Sky, 7 feet connect and connect VCC-3.3,8 feet and the 33rd electricity with one end of one end of the 36th capacitance C36, the 5th inductance L5 The one end for holding C33 connects and connects PA-3.3, the other end of the 22nd resistance R22, the other end of the 23rd resistance R23, the The other end of 36 capacitance C36, the other end ground connection of the 33rd capacitance C33, the other end and the 30th of the 5th inductance L5 One end of nine capacitance C39 connects and meets MCU-3.3；The other end of 39th capacitance C39 is grounded.
The microcontroller U5 models STR09, the model RF7418 of radio frequency chip U4, radio frequency protocol processing chip U9 Model STR01, the model 0915LP15B026 of conditioning chip U3, radiofrequency signal adjust the model of chip U7 The model mic5330 of BD0810J50100AHF, voltage stabilizing chip U10；
The main control module include main control chip U8 1 foot and one end of the 20th capacitance C20, the 6th chip U6 2 Foot connects, the other end ground connection of the 20th capacitance C20, the 1 foot ground connection of the 6th chip U6,3 feet and the 20th of the 6th chip U6 One end of two capacitance C22 connects and connects VCC-BAT, the other end ground connection of the 22nd capacitance C22, and 2 feet of main control chip U8 connect Ground, 3 feet are connect with one end of one end of the 27th capacitance C27, the first crystal oscillator Y1, another termination of the 27th capacitance C27 Ground, 4 feet are connect with one end of the other end of the first crystal oscillator Y1, the 28th capacitance C28, one end of 5 feet and the 18th resistance 18, One end of 29th capacitance C29, the 1 foot connection without source crystal oscillator Y2, the other end ground connection of the 29th capacitance C29, master control core 6 feet of piece U8 are connect with the other end of the 18th resistance 18, one end of the 31st capacitance C31,3 feet without source crystal oscillator Y2, the The other end of 31 capacitance C31 is grounded, 2 feet without source crystal oscillator Y2,4 feet ground connection, 7 feet of main control chip U8 meet MCU_ RESET, 8 feet meet BLPOWER-KZ, and 9 tripods are empty, and 10 feet meet POWERLED, and 11 tripods are empty, 12 feet ground connection, 13 feet and the 30th electricity The one end for holding C30 connects and connects MCU-VCC, the other end ground connection of the 30th capacitance C30, and 14 feet of main control chip U8 meet POWER- B-JC, 15 foot RF_EN, 16 feet are connect with one end of the 20th resistance R20, another termination RXD-TTL of the 20th resistance R20, 17 feet of main control chip U8 are connect with one end of the 21st resistance R21, another termination TXD-TTL of the 21st resistance R21, 18 feet of main control chip U8 are grounded, and 19 feet connect and connect MCU-VCC, the 38th capacitance with one end of the 38th capacitance C38 The other end of C38 is grounded, 20 feet of main control chip U8,21 feet, 22 feet, 23 feet, 24 feet, 26 feet, 30 feet, 38 feet, 45 feet, 51 Foot, 54 feet, 62 tripods are empty, and 25 feet meet BL-RST, and 27 feet meet POWERLED-B-JC, and 28 feet meet BOOT1, and 29 feet meet BL-RXD, and 30 Foot meets BL-TXD, 31 feet ground connection, and 32 feet connect and connect MCU-VCC, the 37th capacitance with one end of the 37th capacitance C37 The other end of C37 is grounded, and 33 feet of main control chip U8 meet IDLE_MCU, and 34 feet meet BL_AT, and 35 feet meet BL_EN, and 36 feet meet BL_ RST, 37 feet meet BL_LED, and 39 feet meet READER_MCU, and 40 feet are connect with the cathode of the first light emitting diode D1, and first luminous two The anode of pole pipe D1 is connect with one end of the 16th resistance R16, another termination MCU-VCC of the 16th resistance R16, main control chip The 41 of U8 meet MCU_TEST, and 42 feet are connect with one end of the 57th resistance R57, another termination of the 57th resistance R57 43 feet of RXD-MCU, main control chip U8 are connect with one end of the 56th resistance R56, another termination of the 56th resistance R56 44 feet of TXD-MCU, main control chip U8 meet BELL, and 46 feet meet J_TMS, 47 feet ground connection, and the one of 48 feet and the 26th capacitance C26 End connects and connects MCU-VCC, the other end ground connection of the 26th capacitance C26, and 49 feet meet J_TCK, and 50 feet meet J_TDI, and 52 feet connect POWERLED-B, 53 feet meet POWER-B, and 55 feet meet J_TDO, and 56 feet meet J_RST, and one end of 57 feet and thirteenth resistor R13 connects It connecing, 58 feet are connect with one end of twelfth resistor R12, and 59 feet are connect with one end of eleventh resistor R11, and 60 feet meet BOOT0, and 61 Foot is connect with one end of the tenth resistance R10,63 ground connection, one end two of 64 feet and the 24th capacitance C24 and and meets MCU- The other end BAT_L3 of another termination BAT_L4 of VCC, the tenth resistance R10, eleventh resistor R11, twelfth resistor R12's is another The other end BAT_L1 of one end BAT_L2, thirteenth resistor R13；
The model STM32F103RCT6 of the main control chip U8, the model XC6206P332MR of the 6th chip U6, Y2 is no source crystal oscillator.
1 foot of the first voltage regulator chip U1 in the LED control module connect and connects with one end of the first capacitance C1 VCC-BAT, 2 feet ground connection, 3 feet are connect with one end of third capacitance C3, and 4 feet connect and connect with one end of the 24th resistance R24 BLPOWER-KZ, 5 feet connect and connect POWERLED-B with one end of the 85th resistance R85, and 6 tripods are empty, 7 feet and the 4th capacitance One end connection of one end of C4, the first inductance, 8 feet connect and connect VCC-LED with one end of the second capacitance C2, and 9 feet are grounded, and first The other end of inductance L1 connect and connects BL_VCC, the other end, the second capacitance of the first capacitance C1 with the other end of the 8th capacitance C8 The other end of C2, the other end of third capacitance C3, the other end of the 4th capacitance C4, the other end of the 8th capacitance C8, the 24th The other end ground connection of the other end of resistance R24, the 85th resistance R85；
The model mic5330 of first voltage regulator chip U1
1 foot of buzzer U17 is connect with one end of the 58th resistance R58 in the buzzer module, and the 58th Another termination MCU-VCC of resistance R58,2 feet of one end of buzzer U17 are connect with the C feet of triode Q1, the B of triode Q1 Foot is connect with one end of the 59th resistance R59, and the E feet of another termination BELL of the 59th resistance R59, triode Q1 connect Ground；The model S9013 of triode Q1；
One end, the 72nd resistance of 1 foot of 5th connector P5 and the 70th resistance R70 in the lighting module One end of R72 connects, the other end of the 70th resistance R70, the other end and the 51st capacitance C51 of the 72nd resistance R72 One end connect and connect VCC-LED, the other end ground connection of the 51st capacitance C51,2 feet and the ground connection of the 5th connector P5；The 1 foot of four connector P4 is connect with one end of one end of the 66th resistance R66, the 68th resistance R68, the 66th resistance The other end of R66, the 68th resistance R68 the other end and one end of the 50th capacitance C50 connect and connect VCC-LED, the 5th The other end of ten capacitance C50 is grounded, 2 feet and the ground connection of the 4th connector P4；73rd R73 one termination MCU-VCC, the 7th The other end of 13 resistance R73 connect and connects BL-RST with one end of one end of the 7th switch S7, the 52nd capacitance C52, the The other end of 52 capacitance C52 connect and is grounded with the other end of the 7th switch S7；
1 foot of the 16th chip U16 connect with one end of the 43rd capacitance C43 and meets BL_ in the bluetooth module The other end of VCC, the 43rd capacitance C43 are grounded, 2 feet, 3 feet, 4 feet, 5 feet, 7 feet, 8 feet, 9 feet, 10 feet, 11 feet, 12 feet, 13 Foot, 14 feet, 15 feet, 16 feet, 17 feet, 18 tripods are empty, and 6 feet are connect with one end of the 50th resistance R50, the 50th resistance R50's The other end is connect with the anode of the 9th light emitting diode D9, the minus earth of the 9th light emitting diode D9, the 16th chip U16's 19 feet are connect with one end of the 44th resistance R44, another termination BL_TXD of the 44th resistance R44, the 16th chip U16 20 feet connect with one end of the 42nd resistance R42, another termination BL_RXD of the 42nd resistance R42, the 16th chip 21 feet of U16 are connect with one end of the 52nd resistance R52, the other end and the 55th resistance R55 of the 52nd resistance R52 One end connect and connect BL_AT, another termination BL_VCC of the 55th resistance R55；22 feet and the 4th of 16th chip U16 One end of 19 resistance R49 connects, another termination BL_EN of the 49th resistance R49,23 feet of the 16th chip U16 and the One end of 47 resistance R47 connects, and the other end of the 47th resistance R47 is connect simultaneously with one end of the 45th resistance R45 Connect BL_RST, the 24 feet ground connection of another termination BL_VCC of the 45th resistance R45, the 16th chip U16.
One end of 1 foot of 13rd chip U13 and the 32nd resistance R32, the 30th in the battery management module One end of four resistance R34s connects, and 2 feet are connect with one end of the 41st resistance R41, and the one of 3 feet and the 37th resistance R37 The other end connection at end, the 34th resistance R34,4 feet are connect with one end of the 43rd resistance R43,5 feet and the 37th electricity Hinder one end connection of the other end of R37, the 39th resistance R39,6 feet are connect with one end of the 46th resistance R46,7 feet and One end of one end connection of the other end, the 40th resistance R40 of 39th resistance R39,8 feet and the 51st resistance R51 connect It connects, 11 feet of 9 feet and the 13rd chip U13,16 feet of the 13rd chip U13, one end of the 42nd capacitance C42, the 30th The other end of two resistance R32 connects and connects VCC-POWERJC, the other end of the 40th resistance R40, the 42nd capacitance C42 The other end, 12 feet of the 13rd chip U13,13 feet of the 13rd chip U13,14 feet ground connection, 10 feet of the 13rd chip U13, 15 tripods are empty；The other end of 41st resistance R41 is connect with the cathode of the 4th diode D4, and the one of the 43rd resistance R43 End is connect with the cathode of the 5th diode D5, and one end of the 46th resistance R46 is connect with the cathode of the 6th diode D6, and the 5th One end of 11 resistance R51 is connect with the cathode of the 7th diode D7, the anode of the 4th diode D4, the sun of the 5th diode D5 Pole, the anode of the 6th diode D6, the 7th diode D7 anode meet MCU-VCC；
The model CN1185 of 13rd electric power detection chip U13,
One end, the 14th chip of 1 foot of first chip J1 and the 49th capacitance C49 in the USB management modules 2 feet of U14 connect and connect USB_VBUS, and 2 feet connect and connect USB_DM, 3 feet and the 14th core with 4 feet of the 14th chip U14 3 feet of piece U14 connect and connect USB_DP, and 4 tripods are empty, 5 feet, 6 feet ground connection, 4 feet, the 49th capacitance of the 14th chip U14 The other end of C49 is grounded, and 1 foot of the 11st chip U11 connect and connect USB_VBUS with one end of the 41st capacitance C41, and 2 Foot, 4 tripods are empty, and 3 feet are connect with the cathode of the second diode D2,5 feet, 9 feet ground connection, one end of 6 feet and the 36th resistance R36 Connection, 7 feet connect with one end of the 33rd resistance R33, one end of 8 feet and the 40th capacitance C40,1 foot of connector P1, the One end of 35 resistance R35 connects and connects VCC-BAT, and the anode of the second diode D2 is another with the 35th resistance R35's End connection, the other end of the 41st capacitance C41, the other end of the 40th capacitance C40, the 33rd resistance R33 the other end, The other end of 36th resistance R36, the 2 feet ground connection of connector P1；1 foot of 15th chip U15,10 feet, 12 feet, 13 feet, 14 feet, 15 feet, 16 feet, 17 feet, 18 feet, 19 feet, 20 feet, 21 feet, 22 feet, 23 feet, 27 tripods are empty, and 4 feet meet USB_DP, and 5 feet connect USB_DM, 6 feet connect with one end of the 45th capacitance C45 and connect 2 feet of U6, one end of 7 feet and the 47th capacitance C47, The 8 feet connection of one end of the 48th capacitance C48, one end of the 53rd resistance R53, the 15th chip U15,10 feet and the 5th The other end of 13 resistance R53 connects, and 11 feet are connect with one end of the 54th resistance R54, and 24 feet meet RTSUSB, and 25 feet connect RXD-MCU, 26 feet meet TXD-MCU, and 28 feet meet DTRUSB, the other end of the 45th capacitance C45, the 47th capacitance C47 The other end, the other end of the 48th capacitance C48, the other end of the 54th resistance R54,3 feet of the 15th chip U15, 29 feet of 15 chip U15 are grounded；
First chip J1 is general microUSB interfaces, the 11st chip U11 models SGM4056.
A termination MCU-VCC of 82nd resistance R82, the 82nd resistance in the power supply control button module The other end of R82 is connect with one end of the 8th button S8, the other end of the 8th button S8 and one end of the 83rd resistance R83, One end of 54th capacitance C54 connects and connects POWER-B-JC, the other end, the 54th capacitance of the 83rd resistance R83 The other end of C54 is grounded；
The label reads a termination MCU-VCC of first resistor R1 in key-press module, the other end of first resistor R1 Connect and connect READER_MCU with one end of one end of the first button S1, the tenth capacitance C10, the other end of the tenth capacitance C10 with The other end of first button S1 is connected and is grounded.
Advantageous effect：In the high-precision ultrahigh frequency RFID near field tag detection system that this patent is realized, by strip line Structure, variable damping system and ultrahigh frequency RFID induction coil make probe appearance, facilitate determining investigative range；It is attached popping one's head in Closely increase it is light-emitting LED, help see label to be identified in dark conditions；Increase " idle IDLE " button, side in detection system Mnemonic(al) records invalid tag；Increase bluetooth and USB data interface and exchanges data with the external world；Increase built-in lithium battery to supply for whole system Electricity.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is radio-frequency module；
Fig. 3 is main controller module；
Fig. 4 is LED control module；
Fig. 5 is buzzer module；
Fig. 6 is lighting module；
Fig. 7 is bluetooth module；
Fig. 8 is battery management module；
Fig. 9 is USB management modules；
Figure 10 is power supply control button module；
Figure 11 is that label reads key-press module.
Specific implementation mode
As shown in Figure 1, a kind of high-precision ultrahigh frequency RFID near field tag detection system, including main control module, hyperfrequency RFID induction coils, variable damping system, strip line structure, impedance matching network, radio-frequency module, power module, bluetooth Module, USB data interface, LED light, lighting module and buzzer module；
The output end of the radio-frequency module and the input terminal of impedance matching network connect, the output end of impedance matching network It is connected by the input terminal of strip line structure and variable damping system, the output end and ultrahigh frequency RFID of variable damping system Induction coil connects, and power module is powered to modules；The strip line structure is elastic material.
The main control module includes radio-frequency module, main controller module, LED control module, buzzer module, illumination mould Block, bluetooth module, USB management modules, power supply control button module and label read key-press module；
As shown in Fig. 2, the radio-frequency module includes the 5th capacitance C5, the 6th capacitance C6, the 7th capacitance C7, the 11st electricity Hold C11, the 12nd capacitance C12, the 13rd capacitance C13, the 14th capacitance C14, the 15th capacitance C15, the 16th capacitance C16, 17th capacitance C17, the 18th capacitance C18, the 21st capacitance C21, the 23rd capacitance C23, the 25th capacitance C25, 34th capacitance C34, the 44th capacitance C44, the 32nd capacitance C32, the 33rd capacitance C33, the 35th capacitance C35, the 36th capacitance C36, the 39th capacitance C39, second resistance R2,3rd resistor R3, the 4th resistance R4, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the 14th resistance R14, the 15th resistance R15, the 17th resistance R17, the 19th resistance R19, the 22nd resistance R22, the 23rd resistance R23, the second inductance L2, third inductance L3, the 4th Inductance L4, the 5th inductance L5, microcontroller U5, radio frequency chip U4, passive crystal oscillator chip U2, radio frequency protocol processing chip U9, conditioning Chip U3, radiofrequency signal adjust chip U7；
1 foot of the microcontroller U5 meets MCU-3.3V, 2 feet ground connection, and 3 feet meet VCC-3.3,4 feet and the 4th inductance L4's One end, radiofrequency signal adjust the 4 feet connection of chip U7, and 5 feet and the other end of the 4th inductance L4, radiofrequency signal adjust chip U7's 3 feet connect, 8 feet ground connection, 9 feet and one end of the 15th capacitance C15, one end of the 16th capacitance C16, third inductance L3 one end Connection, 10 feet connect and connect VCC-3.3, the 16th capacitance C16 with the other end of 11 feet of microcontroller U5, the 15th capacitance C15 Other end ground connection, 13 feet of microcontroller U5 connect with 1 foot of one end of the 12nd capacitance C12, passive crystal oscillator chip U2,14 feet It is connect with 3 feet of one end of the 11st capacitance C11, passive crystal oscillator chip U2, the other end of the 11st capacitance C11, the 12nd electricity Hold the 4 feet ground connection of the other end of C12,2 feet of passive crystal oscillator chip U2, passive crystal oscillator chip U2,15 feet of microcontroller U5 with it is steady Press the 4 feet connection of chip U10,16 feet with connect, 17 feet are connect with the 15th resistance one end, and 18 feet are connect with systematically GND, 19 Foot connect and connects VCC-3.3 with one end of the 18th capacitance C18, and the other end of the 18th capacitance C18 is grounded, and the 20 of microcontroller U5 Foot is connect with one end of the 7th resistance R7, and 21 feet of microcontroller U5 are connect with one end of the 9th resistance R9, and the 7th resistance R7's is another One end is connect with 5 feet of radio frequency protocol processing chip U9,3 feet of the other end and radio frequency protocol processing chip U9 of the 9th resistance R9 Connection, 22 feet are connect with 8 feet of radio frequency protocol processing chip U9, and 23 feet are connect with 7 feet of radio frequency protocol processing chip U9,24 feet It being connect with 5 feet of voltage stabilizing chip U10,25 feet connect and connect MCU-3.3V with one end of the 21st capacitance C21, and 26 feet are hanging, 27 feet are connect with 3rd resistor one end, and 28 feet are connect with the 4th resistance one end, the other end and the 17th capacitance of third inductance L3 One end of C17, the 2 feet connection of radio frequency chip U4, the other end ground connection of the 17th capacitance C17,4 feet of radio frequency chip U4 and the 4th One end connection of one end of resistance R4, the 6th resistance R6, the other end ground connection of the 6th resistance R6, another termination of the 4th resistance R4 5 feet of 28 feet of microcontroller U5, radio frequency chip U4 are connect with one end of one end of 3rd resistor R3, the 8th resistance R8, third electricity The other end ground connection of R3, the other end ground connection of the 8th resistance R8 are hindered, 6 feet of radio frequency chip U4 connect with one end of second resistance R2 It connects, the other end ground connection of second resistance R2, the 7 feet ground connection of radio frequency chip U4,8 feet and the 23rd capacitance of radio frequency chip U4 One end of C23 connects, and the other end of the 23rd capacitance C23 is connect with 1 foot of radiofrequency signal adjusting chip U7, radiofrequency signal tune 2 feet, the 5 feet ground connection of chip U7 are saved, 6 tripods are empty；9 feet of radio frequency chip U4 are connect with 4 feet of conditioning chip U3,10 feet and radio frequency 1 foot of chip U4, one end of the 5th capacitance C5, one end of the 6th capacitance C6, one end of the 7th capacitance C7, voltage stabilizing chip U10 8 Foot connect, the other end of the 5th capacitance C5, the other end of the 6th capacitance C6, the 7th capacitance C7 the other end ground connection, conditioning chip 1 foot of U3,3 feet, 5 feet, 7 feet ground connection, 2 feet, 6 tripods are empty, one end of 8 feet and the 13rd capacitance C13, one end of the second inductance L2 Connection, the other end ground connection of the 13rd capacitance C13, the other end and one end of the 14th capacitance C14, the radio frequency of the second inductance L2 connect Head input terminal connection, the other end ground connection of the 14th capacitance C14, the 0 foot ground connection of radio frequency protocol processing chip U9,2 feet and the 4th One end of 14 capacitance C44 connects, one end other end connection of the 44th capacitance C44,3 feet of radio frequency protocol processing chip U9 It is connect with one end of the 9th resistance, 4 feet ground connection, 5 feet are connect with one end of the 7th resistance, one end of 7 feet and the 17th resistance R17 Connection, 8 feet of another termination MCU-3.3V of the 17th resistance R17, radio frequency protocol processing chip U9 and the 19th resistance R19's One end connects, the 12 feet ground connection of termination a MCU-3.3V, radio frequency protocol processing chip U9 of the 19th resistance R19,13 feet and the One end of 34 capacitance C34 connects, and the other end ground connection of the 34th capacitance C34,18 feet are connect with 32 feet of microcontroller U5, 26 feet are connect with one end of 30 feet of radio frequency protocol processing chip U9, the 14th resistance R14, the other end of the 14th resistance R14 It being connect with one end of the 20th resistance, 27 feet, 28 feet and one end of the 25th capacitance C25 connect and connect MCU-3.3V, and second The other end of 15 capacitance C25 is grounded, and 31 feet of radio frequency protocol processing chip U9 are connect with one end of the 15th resistance R15, the The other end of 15 resistance R15 is connect with one end of the 21st resistance, 1 foot, 6 feet, 9 feet, 10 feet, 11 feet, 14 feet, 15 feet, 16 feet, 17 feet, 19 feet, 20 feet, 21 feet, 22 feet, 23 feet, 24 feet, 25 feet, 28 feet, 32 tripods are empty；32nd capacitance One end of C32 is grounded, and the other end connect with 1 foot of voltage stabilizing chip U10 and connect power supply VCC-BAT, and 2 feet of voltage stabilizing chip U10 connect Ground, 3 feet are connect with one end of the 35th capacitance C35, the other end ground connection of the 35th capacitance C35, and the 4 of voltage stabilizing chip U10 Foot is connect with one end of the 22nd resistance R22, and 5 feet connect and connect PA_VPD, 6 tripods with one end of the 23rd resistance R23 Sky, 7 feet connect and connect VCC-3.3,8 feet and the 33rd electricity with one end of one end of the 36th capacitance C36, the 5th inductance L5 The one end for holding C33 connects and connects PA-3.3, the other end of the 22nd resistance R22, the other end of the 23rd resistance R23, the The other end of 36 capacitance C36, the other end ground connection of the 33rd capacitance C33, the other end and the 30th of the 5th inductance L5 One end of nine capacitance C39 connects and meets MCU-3.3；The other end of 39th capacitance C39 is grounded.
The microcontroller U5 models STR09, the model RF7418 of radio frequency chip U4, radio frequency protocol processing chip U9 Model STR01, the model 0915LP15B026 of conditioning chip U3, radiofrequency signal adjust the model of chip U7 The model mic5330 of BD0810J50100AHF, voltage stabilizing chip U10；
As shown in figure 3, the main control module include main control chip U8 1 foot and the 20th capacitance C20 one end, the 6th 2 feet of chip U6 connect, the other end ground connection of the 20th capacitance C20, the 1 foot ground connection of the 6th chip U6,3 feet of the 6th chip U6 It connect and connects VCC-BAT, the other end ground connection of the 22nd capacitance C22, main control chip U8 with one end of the 22nd capacitance C22 2 feet ground connection, 3 feet connect with one end of one end of the 27th capacitance C27, the first crystal oscillator Y1, and the 27th capacitance C27's is another One end is grounded, and 4 feet are connect with one end of the other end of the first crystal oscillator Y1, the 28th capacitance C28,5 feet and the 18th resistance 18 One end, the 29th capacitance C29 one end, without source crystal oscillator Y2 1 foot connection, the 29th capacitance C29 the other end ground connection, 6 feet of main control chip U8 and the other end of the 18th resistance 18, one end of the 31st capacitance C31,3 feet without source crystal oscillator Y2 connect Connect, the other end of the 31st capacitance C31 ground connection, 2 feet without source crystal oscillator Y2,4 feet ground connection, 7 feet of main control chip U8 meet MCU_ RESET, 8 feet meet BLPOWER-KZ, and 9 tripods are empty, and 10 feet meet POWERLED, and 11 tripods are empty, 12 feet ground connection, 13 feet and the 30th electricity The one end for holding C30 connects and connects MCU-VCC, the other end ground connection of the 30th capacitance C30, and 14 feet of main control chip U8 meet POWER- B-JC, 15 foot RF_EN, 16 feet are connect with one end of the 20th resistance R20, another termination RXD-TTL of the 20th resistance R20, 17 feet of main control chip U8 are connect with one end of the 21st resistance R21, another termination TXD-TTL of the 21st resistance R21, 18 feet of main control chip U8 are grounded, and 19 feet connect and connect MCU-VCC, the 38th capacitance with one end of the 38th capacitance C38 The other end of C38 is grounded, 20 feet of main control chip U8,21 feet, 22 feet, 23 feet, 24 feet, 26 feet, 30 feet, 38 feet, 45 feet, 51 Foot, 54 feet, 62 tripods are empty, and 25 feet meet BL-RST, and 27 feet meet POWERLED-B-JC, and 28 feet meet BOOT1, and 29 feet meet BL-RXD, and 30 Foot meets BL-TXD, 31 feet ground connection, and 32 feet connect and connect MCU-VCC, the 37th capacitance with one end of the 37th capacitance C37 The other end of C37 is grounded, and 33 feet of main control chip U8 meet IDLE_MCU, and 34 feet meet BL_AT, and 35 feet meet BL_EN, and 36 feet meet BL_ RST, 37 feet meet BL_LED, and 39 feet meet READER_MCU, and 40 feet are connect with the cathode of the first light emitting diode D1, and first luminous two The anode of pole pipe D1 is connect with one end of the 16th resistance R16, another termination MCU-VCC of the 16th resistance R16, main control chip The 41 of U8 meet MCU_TEST, and 42 feet are connect with one end of the 57th resistance R57, another termination of the 57th resistance R57 43 feet of RXD-MCU, main control chip U8 are connect with one end of the 56th resistance R56, another termination of the 56th resistance R56 44 feet of TXD-MCU, main control chip U8 meet BELL, and 46 feet meet J_TMS, 47 feet ground connection, and the one of 48 feet and the 26th capacitance C26 End connects and connects MCU-VCC, the other end ground connection of the 26th capacitance C26, and 49 feet meet J_TCK, and 50 feet meet J_TDI, and 52 feet connect POWERLED-B, 53 feet meet POWER-B, and 55 feet meet J_TDO, and 56 feet meet J_RST, and one end of 57 feet and thirteenth resistor R13 connects It connecing, 58 feet are connect with one end of twelfth resistor R12, and 59 feet are connect with one end of eleventh resistor R11, and 60 feet meet BOOT0, and 61 Foot is connect with one end of the tenth resistance R10,63 ground connection, one end two of 64 feet and the 24th capacitance C24 and and meets MCU- The other end BAT_L3 of another termination BAT_L4 of VCC, the tenth resistance R10, eleventh resistor R11, twelfth resistor R12's is another The other end BAT_L1 of one end BAT_L2, thirteenth resistor R13；
The model STM32F103RCT6 of the main control chip U8, the model XC6206P332MR of the 6th chip U6, Y2 is no source crystal oscillator.
As shown in figure 4, the first voltage regulator chip U1 in the LED control module 1 foot and the first capacitance C1 one End, which connects, simultaneously meets VCC-BAT, and 2 feet ground connection, 3 feet are connect with one end of third capacitance C3, and the one of 4 feet and the 24th resistance R24 End connects and connects BLPOWER-KZ, and 5 feet connect and connect POWERLED-B with one end of the 85th resistance R85, and 6 tripods are empty, 7 feet It being connect with one end of one end of the 4th capacitance C4, the first inductance, 8 feet and one end of the second capacitance C2 connect and connect VCC-LED, and 9 Foot is grounded, and the other end and the other end of the 8th capacitance C8 of the first inductance L1 connect and connect BL_VCC, and the first capacitance C1's is another End, the other end of the second capacitance C2, the other end of third capacitance C3, the other end of the 4th capacitance C4, the 8th capacitance C8 it is another End, the other end of the 24th resistance R24, the 85th resistance R85 the other end ground connection；
The model mic5330 of first voltage regulator chip U1
As shown in figure 5, one end of 1 foot of buzzer U17 and the 58th resistance R58 connect in the buzzer module It connecing, another termination MCU-VCC of the 58th resistance R58,2 feet of one end of buzzer U17 are connect with the C feet of triode Q1, The B feet of triode Q1 are connect with one end of the 59th resistance R59, another termination BELL of the 59th resistance R59, triode The E feet of Q1 are grounded；The model S9013 of triode Q1；
As shown in fig. 6, one end of 1 foot of the 5th connector P5 and the 70th resistance R70, the 7th in the lighting module One end of 12 resistance R72 connects, the other end of the 70th resistance R70, the other end and the 51st of the 72nd resistance R72 One end of capacitance C51 connects and connects VCC-LED, the other end ground connection of the 51st capacitance C51,2 feet of the 5th connector P5 with Ground connection；1 foot of 4th connector P4 is connect with one end of one end of the 66th resistance R66, the 68th resistance R68, and the 6th The other end of 16 resistance R66, the other end of the 68th resistance R68 connect with one end of the 50th capacitance C50 and meet VCC- The other end of LED, the 50th capacitance C50 are grounded, 2 feet and the ground connection of the 4th connector P4；A termination MCU- of 73rd R73 The other end of VCC, the 73rd resistance R73 connect and connect with one end of one end of the 7th switch S7, the 52nd capacitance C52 The other end of BL-RST, the 52nd capacitance C52 connect and are grounded with the other end of the 7th switch S7；
As shown in fig. 7, one end of 1 foot of the 16th chip U16 and the 43rd capacitance C43 connect in the bluetooth module Connect and connect BL_VCC, the other end ground connection of the 43rd capacitance C43,2 feet, 3 feet, 4 feet, 5 feet, 7 feet, 8 feet, 9 feet, 10 feet, 11 Foot, 12 feet, 13 feet, 14 feet, 15 feet, 16 feet, 17 feet, 18 tripods are empty, and 6 feet are connect with one end of the 50th resistance R50, and the 50th The other end of resistance R50 is connect with the anode of the 9th light emitting diode D9, the minus earth of the 9th light emitting diode D9, and the 16th 19 feet of chip U16 are connect with one end of the 44th resistance R44, another termination BL_TXD of the 44th resistance R44, and the tenth 20 feet of six chip U16 are connect with one end of the 42nd resistance R42, another termination BL_RXD of the 42nd resistance R42, the 21 feet of 16 chip U16 are connect with one end of the 52nd resistance R52, the other end and the 50th of the 52nd resistance R52 One end of five resistance R55 connects and connects BL_AT, another termination BL_VCC of the 55th resistance R55；16th chip U16's 22 feet are connect with one end of the 49th resistance R49, another termination BL_EN of the 49th resistance R49, the 16th chip U16 23 feet connect with one end of the 47th resistance R47, the other end of the 47th resistance R47 and the 45th resistance R45's One end connects and connects BL_RST, the 24 feet ground connection of another termination BL_VCC of the 45th resistance R45, the 16th chip U16.
As shown in figure 8, in the battery management module 1 foot of the 13rd chip U13 and the 32nd resistance R32 one One end connection at end, the 34th resistance R34,2 feet are connect with one end of the 41st resistance R41,3 feet and the 37th resistance The other end connection of one end of R37, the 34th resistance R34,4 feet connect with one end of the 43rd resistance R43,5 feet and the One end of one end connection of the other end, the 39th resistance R39 of 37 resistance R37,6 feet and the 46th resistance R46 connect It connects, 7 feet are connect with one end of the other end of the 39th resistance R39, the 40th resistance R40,8 feet and the 51st resistance R51 One end connection, the one of 9 feet and 11 feet of the 13rd chip U13,16 feet of the 13rd chip U13, the 42nd capacitance C42 It holds, the other end of the 32nd resistance R32 connects and connect VCC-POWERJC, the other end of the 40th resistance R40, the 42nd The other end of capacitance C42,12 feet of the 13rd chip U13,13 feet of the 13rd chip U13,14 feet ground connection, the 13rd chip 10 feet, 15 tripods of U13 are empty；The other end of 41st resistance R41 is connect with the cathode of the 4th diode D4, the 43rd electricity One end of resistance R43 is connect with the cathode of the 5th diode D5, the cathode of one end and the 6th diode D6 of the 46th resistance R46 Connection, one end of the 51st resistance R51 are connect with the cathode of the 7th diode D7, the anode of the 4th diode D4, the five or two The anode of pole pipe D5, the anode of the 6th diode D6, the 7th diode D7 anode meet MCU-VCC；
The model CN1185 of 13rd electric power detection chip U13,
As shown in figure 9, one end of 1 foot of the first chip J1 and the 49th capacitance C49 in the USB management modules, 2 feet of 14th chip U14 connect and connect USB_VBUS, and 2 feet connect and connect USB_DM, 3 feet with 4 feet of the 14th chip U14 It connect and connects USB_DP with 3 feet of the 14th chip U14,4 tripods are empty, 5 feet, 6 feet ground connection, 4 feet of the 14th chip U14, the The other end of 49 capacitance C49 is grounded, and 1 foot of the 11st chip U11 connect and connects with one end of the 41st capacitance C41 USB_VBUS, 2 feet, 4 tripods are empty, and 3 feet are connect with the cathode of the second diode D2,5 feet, 9 feet ground connection, 6 feet and the 36th electricity One end connection of R36 is hindered, 7 feet connect with one end of the 33rd resistance R33, and one end of 8 feet and the 40th capacitance C40 patch 1 foot of part P1, one end of the 35th resistance R35 connect and connect VCC-BAT, the anode of the second diode D2 and the 35th electricity Hinder the other end connection of R35, the other end of the 41st capacitance C41, the other end, the 33rd resistance of the 40th capacitance C40 The 2 feet ground connection of the other end of R33, the other end of the 36th resistance R36, connector P1；1 foot of 15th chip U15,10 Foot, 12 feet, 13 feet, 14 feet, 15 feet, 16 feet, 17 feet, 18 feet, 19 feet, 20 feet, 21 feet, 22 feet, 23 feet, 27 tripods are empty, and 4 feet connect USB_DP, 5 feet meet USB_DM, and 6 feet connect with one end of the 45th capacitance C45 and connect 2 feet of U6,7 feet and the 47th electricity Hold one end of C47, one end of the 48th capacitance C48, one end of the 53rd resistance R53, the 15th chip U15 8 feet connect It connects, 10 feet are connect with the other end of the 53rd resistance R53, and 11 feet are connect with one end of the 54th resistance R54, and 24 feet connect RTSUSB, 25 feet meet RXD-MCU, and 26 feet meet TXD-MCU, and 28 feet meet DTRUSB, the other end of the 45th capacitance C45, the 4th The other end, the 15th core of the other end of 17 capacitance C47, the other end of the 48th capacitance C48, the 54th resistance R54 3 feet of piece U15, the 29 feet ground connection of the 15th chip U15；
First chip J1 is general microUSB interfaces, the 11st chip U11 models SGM4056.
As shown in Figure 10, in the power supply control button module the 82nd resistance R82 a termination MCU-VCC, the The other end of 82 resistance R82 is connect with one end of the 8th button S8, the other end and the 83rd resistance of the 8th button S8 One end of R83, the 54th capacitance C54 one end connect and connect POWER-B-JC, the other end of the 83rd resistance R83, The other end of 54 capacitance C54 is grounded；
As shown in figure 11, the label reads a termination MCU-VCC of first resistor R1 in key-press module, first resistor The other end of R1 connect and connects READER_MCU with one end of one end of the first button S1, the tenth capacitance C10, the tenth capacitance C10 The other end connect and be grounded with the other end of the first button S1.The course of work of entire circuit：
This system coordinates the accurate completion various functions of each function module with MCU cores in order to control, bonded by pressing Mouth response external control, the working condition of whole system is reflected by buzzer and indicator light, is realized by usb interfaces and external Data interaction under wired mode is realized and the data interaction under external wireless mode, MCU and radio-frequency module by bluetooth module Between data interaction carried out by USART, to obtain label information within the scope of induction coil electromagnetic field, radio-frequency module will be modulated Signal is sent to radio frequency amplifier and carries out power amplification, to ensure that induction antenna can obtain the fullness signal of maximum power, with Enough electromagnetic field environment that excitation outgoing label can work normally, strip line structure can effectively inhibit external EMI to interfere, The maximum power that impedance matching network realizes induction antenna obtains, and variable damping system can effectively reduce induction antenna outside To the influence of signal transmission when portion's deformation.
Ultrahigh frequency RFID induction coil carries out energetic interaction by inductive coupling principles and ultrahigh frequency RFID near field tag.This When the not instead of electro-magnetic far-field that mainly works, strong magnetic near field.Strong magnetic near field has clearly range limit.Induction coil Size should be comparable near field tag size.The strong magnetic near field that variable damping system generates to continuous stepless fine tuning induction coil Range.By the adjusting of damping system, induction coil can be identified that the range of hyperfrequency near field tag is accurately controlled in induction Within the size range of coil.
Strip line structure between RFID radio-frequency modules and induction coil transmitting radiofrequency signal.Shielding be in order to Energy leakage in transmission process is avoided to cause to misread other labels.As needed, strip line structure can be made flexible The appearance of rebound type, it is user-friendly.
Induction coil before and variable damping system pass through input impedance after strip line and RFID radio-frequency modules Output impedance deviation it is very remote.It needs to increase an impedance matching network at this time, the two is matched, reach maximum power transfer effect Fruit.

Claims (1)

1. a kind of high-precision ultrahigh frequency RFID near field tag detection system, it is characterised in that：Including main control module, ultrahigh frequency RFID Induction coil, variable damping system, strip line structure, impedance matching network, radio-frequency module, power module, bluetooth module, USB data interface, LED light, lighting module and buzzer module；
The output end of the radio-frequency module and the input terminal of impedance matching network connect, and the output end of impedance matching network passes through The input terminal of strip line structure and variable damping system connects, and output end and the ultrahigh frequency RFID of variable damping system incude Coil connects, and power module is powered to modules；The strip line structure is elastic material；
The main control module includes radio-frequency module, main controller module, LED control module, buzzer module, lighting module, indigo plant Tooth module, USB management modules, power supply control button module and label read key-press module；
The radio-frequency module includes the 5th capacitance C5, the 6th capacitance C6, the 7th capacitance C7, the 11st capacitance C11, the 12nd electricity Hold C12, the 13rd capacitance C13, the 14th capacitance C14, the 15th capacitance C15, the 16th capacitance C16, the 17th capacitance C17, 18th capacitance C18, the 21st capacitance C21, the 23rd capacitance C23, the 25th capacitance C25, the 34th capacitance C34, the 44th capacitance C44, the 32nd capacitance C32, the 33rd capacitance C33, the 35th capacitance C35, the 36th Capacitance C36, the 39th capacitance C39, second resistance R2,3rd resistor R3, the 4th resistance R4, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the 14th resistance R14, the 15th resistance R15, the 17th resistance R17, the 19th resistance R19, the 22nd resistance R22, the 23rd resistance R23, the second inductance L2, third inductance L3, the 4th inductance L4, the 5th inductance L5, microcontroller U5, radio frequency chip U4, passive crystal oscillator chip U2, radio frequency protocol processing chip U9, conditioning chip U3, radiofrequency signal Adjust chip U7；
1 foot of the microcontroller U5 meets MCU-3.3V, 2 feet ground connection, and 3 feet meet VCC-3.3, one end of 4 feet and the 4th inductance L4, Radiofrequency signal adjusts the 4 feet connection of chip U7, and 3 feet that 5 feet and the other end of the 4th inductance L4, radiofrequency signal adjust chip U7 connect It connecing, 8 feet ground connection, 9 feet are connect with one end of one end of the 15th capacitance C15, one end of the 16th capacitance C16, third inductance L3, 10 feet connect and connect VCC-3.3 with the other end of 11 feet of microcontroller U5, the 15th capacitance C15, and the 16th capacitance C16's is another End ground connection, 13 feet of microcontroller U5 are connect with 1 foot of one end of the 12nd capacitance C12, passive crystal oscillator chip U2,14 feet and the tenth The 3 feet connection of one end of one capacitance C11, passive crystal oscillator chip U2, the other end of the 11st capacitance C11, the 12nd capacitance C12 The 4 feet ground connection of the other end, 2 feet of passive crystal oscillator chip U2, passive crystal oscillator chip U2,15 feet and voltage stabilizing chip of microcontroller U5 4 feet of U10 connect, 16 feet with connect, 17 feet are connect with the 15th resistance one end, and 18 feet are connect with systematically GND, 19 feet and the One end of 18 capacitance C18 connects and connects VCC-3.3, the other end ground connection of the 18th capacitance C18,20 feet of microcontroller U5 and the One end of seven resistance R7 connects, and 21 feet of microcontroller U5 are connect with one end of the 9th resistance R9, the other end of the 7th resistance R7 and 5 feet of radio frequency protocol processing chip U9 connect, and the other end of the 9th resistance R9 is connect with 3 feet of radio frequency protocol processing chip U9, 22 feet are connect with 8 feet of radio frequency protocol processing chip U9, and 23 feet are connect with 7 feet of radio frequency protocol processing chip U9,24 feet with it is steady The 5 feet connection of chip U10,25 feet is pressed to connect and connect MCU-3.3V with one end of the 21st capacitance C21,26 feet are hanging, 27 feet It is connect with 3rd resistor one end, 28 feet are connect with the 4th resistance one end, the other end of third inductance L3 and the 17th capacitance C17's The 2 feet connection of one end, radio frequency chip U4, the other end ground connection of the 17th capacitance C17,4 feet and the 4th resistance of radio frequency chip U4 One end connection of one end of R4, the 6th resistance R6, the other end ground connection of the 6th resistance R6, the other end order piece of the 4th resistance R4 5 feet of 28 feet of machine U5, radio frequency chip U4 are connect with one end of one end of 3rd resistor R3, the 8th resistance R8,3rd resistor R3 Other end ground connection, the other end ground connection of the 8th resistance R8,6 feet of radio frequency chip U4 connect with one end of second resistance R2, the The other end of two resistance R2 is grounded, the 7 feet ground connection of radio frequency chip U4,8 feet of radio frequency chip U4 and the one of the 23rd capacitance C23 The other end of end connection, the 23rd capacitance C23 is connect with 1 foot of radiofrequency signal adjusting chip U7, and radiofrequency signal adjusts chip 2 feet of U7,5 feet ground connection, 6 tripods are empty；9 feet of radio frequency chip U4 are connect with 4 feet of conditioning chip U3,10 feet and radio frequency chip U4 1 foot, one end of the 5th capacitance C5, one end of the 6th capacitance C6, one end of the 7th capacitance C7, voltage stabilizing chip U10 8 feet connect Connect, the other end of the 5th capacitance C5, the other end of the 6th capacitance C6, the 7th capacitance C7 the other end ground connection, the 1 of conditioning chip U3 Foot, 3 feet, 5 feet, 7 feet ground connection, 2 feet, 6 tripods are empty, and 8 feet are connect with one end of one end of the 13rd capacitance C13, the second inductance L2, The other end of 13rd capacitance C13 is grounded, and the other end and one end of the 14th capacitance C14, radio-frequency joint of the second inductance L2 is defeated Enter end connection, the other end ground connection of the 14th capacitance C14, the 0 foot ground connection of radio frequency protocol processing chip U9,2 feet and the 44th One end of capacitance C44 connects, one end other end connection of the 44th capacitance C44,3 feet of radio frequency protocol processing chip U9 and the One end of nine resistance connects, and 4 feet ground connection, 5 feet are connect with one end of the 7th resistance, and one end of 7 feet and the 17th resistance R17 connect It connects, another termination MCU-3.3V of the 17th resistance R17,8 feet of radio frequency protocol processing chip U9 and the one of the 19th resistance R19 End connection, the 12 feet ground connection of termination a MCU-3.3V, radio frequency protocol processing chip U9 of the 19th resistance R19,13 feet and third One end of 14 capacitance C34 connects, and the other end ground connection of the 34th capacitance C34,18 feet are connect with 32 feet of microcontroller U5, and 26 Foot is connect with one end of 30 feet of radio frequency protocol processing chip U9, the 14th resistance R14, the other end of the 14th resistance R14 with One end of 20th resistance connects, and 27 feet, 28 feet and one end of the 25th capacitance C25 connect and connect MCU-3.3V, and the 20th The other end of five capacitance C25 is grounded, and 31 feet of radio frequency protocol processing chip U9 are connect with one end of the 15th resistance R15, and the tenth The other end of five resistance R15 is connect with one end of the 21st resistance, 1 foot, 6 feet, 9 feet, 10 feet, 11 feet, 14 feet, 15 feet, 16 Foot, 17 feet, 19 feet, 20 feet, 21 feet, 22 feet, 23 feet, 24 feet, 25 feet, 28 feet, 32 tripods are empty；32nd capacitance One end of C32 is grounded, and the other end connect with 1 foot of voltage stabilizing chip U10 and connect power supply VCC-BAT, and 2 feet of voltage stabilizing chip U10 connect Ground, 3 feet are connect with one end of the 35th capacitance C35, the other end ground connection of the 35th capacitance C35, and the 4 of voltage stabilizing chip U10 Foot is connect with one end of the 22nd resistance R22, and 5 feet connect and connect PA_VPD, 6 tripods with one end of the 23rd resistance R23 Sky, 7 feet connect and connect VCC-3.3,8 feet and the 33rd electricity with one end of one end of the 36th capacitance C36, the 5th inductance L5 The one end for holding C33 connects and connects PA-3.3, the other end of the 22nd resistance R22, the other end of the 23rd resistance R23, the The other end of 36 capacitance C36, the other end ground connection of the 33rd capacitance C33, the other end and the 30th of the 5th inductance L5 One end of nine capacitance C39 connects and meets MCU-3.3；The other end of 39th capacitance C39 is grounded；
The type of the microcontroller U5 models STR09, the model RF7418 of radio frequency chip U4, radio frequency protocol processing chip U9 The model of chip U7 number is adjusted for STR01, the model 0915LP15B026 of conditioning chip U3, radiofrequency signal The model mic5330 of BD0810J50100AHF, voltage stabilizing chip U10；
The main control module includes that 1 foot of main control chip U8 and 2 feet of one end of the 20th capacitance C20, the 6th chip U6 connect It connects, the other end ground connection of the 20th capacitance C20, the 1 foot ground connection of the 6th chip U6,3 feet of the 6th chip U6 and the 22nd electricity The one end for holding C22 connects and connects VCC-BAT, the other end ground connection of the 22nd capacitance C22, and 2 feet of main control chip U8 are grounded, and 3 Foot is connect with one end of one end of the 27th capacitance C27, the first crystal oscillator Y1, the other end ground connection of the 27th capacitance C27, and 4 Foot is connect with one end of the other end of the first crystal oscillator Y1, the 28th capacitance C28, one end of 5 feet and the 18th resistance 18, second One end of 19 capacitance C29, the 1 foot connection without source crystal oscillator Y2, the other end ground connection of the 29th capacitance C29, main control chip U8 6 feet connect with the other end of the 18th resistance 18, one end of the 31st capacitance C31,3 feet without source crystal oscillator Y2, the 30th The other end of one capacitance C31 is grounded, 2 feet without source crystal oscillator Y2,4 feet ground connection, 7 feet of main control chip U8 connect MCU_RESET, 8 feet Meeting BLPOWER-KZ, 9 tripods are empty, and 10 feet meet POWERLED, and 11 tripods are empty, 12 feet ground connection, and the one of 13 feet and the 30th capacitance C30 End connects and connects MCU-VCC, the other end ground connection of the 30th capacitance C30, and 14 feet of main control chip U8 connect POWER-B-JC, 15 feet RF_EN, 16 feet are connect with one end of the 20th resistance R20, another termination RXD-TTL of the 20th resistance R20, main control chip U8 17 feet connect with one end of the 21st resistance R21, another termination TXD-TTL of the 21st resistance R21, main control chip U8 18 feet ground connection, 19 feet connect and connect MCU-VCC, the other end of the 38th capacitance C38 with one end of the 38th capacitance C38 Ground connection, 20 feet, 21 feet, 22 feet, 23 feet, 24 feet, 26 feet, 30 feet, 38 feet, 45 feet, 51 feet, 54 feet, 62 feet of main control chip U8 Aerial, 25 feet meet BL-RST, and 27 feet meet POWERLED-B-JC, and 28 feet meet BOOT1, and 29 feet meet BL-RXD, and 30 feet meet BL-TXD, 31 feet are grounded, and 32 feet connect and connect MCU-VCC, another termination of the 37th capacitance C37 with one end of the 37th capacitance C37 33 feet on ground, main control chip U8 meet IDLE_MCU, and 34 feet meet BL_AT, and 35 feet meet BL_EN, and 36 feet meet BL_RST, and 37 feet meet BL_ LED, 39 feet meet READER_MCU, and 40 feet are connect with the cathode of the first light emitting diode D1, the anode of the first light emitting diode D1 It is connect with one end of the 16th resistance R16, another termination MCU-VCC of the 16th resistance R16, the 41 of main control chip U8 meets MCU_ TEST, 42 feet are connect with one end of the 57th resistance R57, another termination RXD-MCU of the 57th resistance R57, master control core 43 feet of piece U8 are connect with one end of the 56th resistance R56, another termination TXD-MCU of the 56th resistance R56, master control core 44 feet of piece U8 meet BELL, and 46 feet meet J_TMS, 47 feet ground connection, and 48 feet connect with one end of the 26th capacitance C26 and meet MCU- The other end of VCC, the 26th capacitance C26 are grounded, and 49 feet meet J_TCK, and 50 feet meet J_TDI, and 52 feet connect POWERLED-B, 53 feet POWER-B is met, 55 feet meet J_TDO, and 56 feet meet J_RST, and 57 feet are connect with one end of thirteenth resistor R13,58 feet and the 12nd One end of resistance R12 connects, and 59 feet are connect with one end of eleventh resistor R11, and 60 feet meet BOOT0,61 feet and the tenth resistance R10 One end connection, 63 ground connection, one end two of 64 feet and the 24th capacitance C24 and and meet MCU-VCC, the tenth resistance R10's The other end BAT_L2 of the other end BAT_L3 of another termination BAT_L4, eleventh resistor R11, twelfth resistor R12, the 13rd The other end BAT_L1 of resistance R13；
The model STM32F103RCT6 of the main control chip U8, model XC6206P332MR, Y2 of the 6th chip U6 are Without source crystal oscillator；
1 foot of the first voltage regulator chip U1 in the LED control module connect with one end of the first capacitance C1 and meets VCC- BAT, 2 feet ground connection, 3 feet are connect with one end of third capacitance C3, and 4 feet connect and connect with one end of the 24th resistance R24 BLPOWER-KZ, 5 feet connect and connect POWERLED-B with one end of the 85th resistance R85, and 6 tripods are empty, 7 feet and the 4th capacitance One end connection of one end of C4, the first inductance, 8 feet connect and connect VCC-LED with one end of the second capacitance C2, and 9 feet are grounded, and first The other end of inductance L1 connect and connects BL_VCC, the other end, the second capacitance of the first capacitance C1 with the other end of the 8th capacitance C8 The other end of C2, the other end of third capacitance C3, the other end of the 4th capacitance C4, the other end of the 8th capacitance C8, the 24th The other end ground connection of the other end of resistance R24, the 85th resistance R85；
The model mic5330 of first voltage regulator chip U1
1 foot of buzzer U17 is connect with one end of the 58th resistance R58 in the buzzer module, the 58th resistance Another termination MCU-VCC of R58,2 feet of one end of buzzer U17 are connect with the C feet of triode Q1, the B feet of triode Q1 with One end of 59th resistance R59 connects, the E feet ground connection of another termination BELL of the 59th resistance R59, triode Q1；Three The model S9013 of pole pipe Q1；
One end of 1 foot of 5th connector P5 and the 70th resistance R70 in the lighting module, the 72nd resistance R72 One end connect, the other end of the 70th resistance R70, the other end and the 51st capacitance C51 of the 72nd resistance R72 one end Connect and connect VCC-LED, the other end ground connection of the 51st capacitance C51,2 feet and the ground connection of the 5th connector P5；4th patches 1 foot of part P4 is connect with one end of one end of the 66th resistance R66, the 68th resistance R68, the 66th resistance R66's The other end, the 68th resistance R68 the other end and one end of the 50th capacitance C50 connect and connect VCC-LED, the 50th capacitance The other end of C50 is grounded, 2 feet and the ground connection of the 4th connector P4；A termination MCU-VCC of 73rd R73, the 73rd electricity The other end and one end of one end of the 7th switch S7, the 52nd capacitance C52 for hindering R73 connect and connect BL-RST, and the 52nd The other end of capacitance C52 connect and is grounded with the other end of the 7th switch S7；
1 foot of the 16th chip U16 connect and connects BL_VCC with one end of the 43rd capacitance C43 in the bluetooth module, The other end of 43rd capacitance C43 is grounded, 2 feet, 3 feet, 4 feet, 5 feet, 7 feet, 8 feet, 9 feet, 10 feet, 11 feet, 12 feet, 13 feet, 14 feet, 15 feet, 16 feet, 17 feet, 18 tripods are empty, and 6 feet are connect with one end of the 50th resistance R50, and the 50th resistance R50's is another End is connect with the anode of the 9th light emitting diode D9, the minus earth of the 9th light emitting diode D9,19 feet of the 16th chip U16 It is connect with one end of the 44th resistance R44, another termination BL_TXD of the 44th resistance R44, the 20 of the 16th chip U16 Foot is connect with one end of the 42nd resistance R42, another termination BL_RXD of the 42nd resistance R42, the 16th chip U16's 21 feet are connect with one end of the 52nd resistance R52, the other end of the 52nd resistance R52 and the one of the 55th resistance R55 End connects and meets BL_AT, another termination BL_VCC of the 55th resistance R55；22 feet and the 49th of 16th chip U16 One end of resistance R49 connects, another termination BL_EN of the 49th resistance R49,23 feet and the 40th of the 16th chip U16 One end of seven resistance R47 connects, and the other end of the 47th resistance R47 connect with one end of the 45th resistance R45 and meets BL_ 24 feet of another termination BL_VCC of RST, the 45th resistance R45, the 16th chip U16 are grounded；
One end of 1 foot of 13rd chip U13 and the 32nd resistance R32, the 34th electricity in the battery management module One end connection of R34 is hindered, 2 feet connect with one end of the 41st resistance R41, one end of 3 feet and the 37th resistance R37, the The other end of 34 resistance R34s connects, and 4 feet are connect with one end of the 43rd resistance R43,5 feet and the 37th resistance R37 The other end, the 39th resistance R39 one end connection, 6 feet connect with one end of the 46th resistance R46,7 feet and the 30th One end connection of the other end, the 40th resistance R40 of nine resistance R39,8 feet are connect with one end of the 51st resistance R51,9 feet With 11 feet of the 13rd chip U13,16 feet, one end of the 42nd capacitance C42, the 32nd resistance of the 13rd chip U13 The other end of R32 connects and connects VCC-POWERJC, the other end of the 40th resistance R40, the other end of the 42nd capacitance C42, 12 feet of 13rd chip U13,13 feet of the 13rd chip U13,14 feet ground connection, 10 feet, 15 tripods of the 13rd chip U13 It is empty；The other end of 41st resistance R41 is connect with the cathode of the 4th diode D4, one end of the 43rd resistance R43 and the The cathode of five diode D5 connects, and one end of the 46th resistance R46 is connect with the cathode of the 6th diode D6, the 51st electricity One end of resistance R51 is connect with the cathode of the 7th diode D7, the anode of the 4th diode D4, the anode of the 5th diode D5, the The anode of six diode D6, the anode of the 7th diode D7 meet MCU-VCC；
The model CN1185 of 13rd electric power detection chip U13,
One end of 1 foot of first chip J1 and the 49th capacitance C49 in the USB management modules, the 14th chip U14 2 feet connect and connect USB_VBUS, and 2 feet connect and connect USB_DM, 3 feet and the 14th chip U14 with 4 feet of the 14th chip U14 3 feet connect and connect USB_DP, 4 tripods are empty, 5 feet, 6 feet ground connection, 4 feet of the 14th chip U14, the 49th capacitance C49 The other end is grounded, and 1 foot and one end of the 41st capacitance C41 of the 11st chip U11 connect and connect USB_VBUS, 2 feet, 4 feet Aerial, 3 feet are connect with the cathode of the second diode D2, and 5 feet, 9 feet ground connection, 6 feet are connect with one end of the 36th resistance R36, and 7 Foot is connect with one end of the 33rd resistance R33, one end of 8 feet and the 40th capacitance C40,1 foot of connector P1, the 35th One end of resistance R35 connects and connects VCC-BAT, and the anode of the second diode D2 is connect with the other end of the 35th resistance R35, The other end of 41st capacitance C41, the other end of the 40th capacitance C40, the other end of the 33rd resistance R33, the 30th The other end of six resistance R36, the 2 feet ground connection of connector P1；1 foot of 15th chip U15,10 feet, 12 feet, 13 feet, 14 feet, 15 Foot, 16 feet, 17 feet, 18 feet, 19 feet, 20 feet, 21 feet, 22 feet, 23 feet, 27 tripods are empty, and 4 feet meet USB_DP, and 5 feet meet USB_DM, and 6 Foot connect with one end of the 45th capacitance C45 and connects 2 feet of U6, one end of 7 feet and the 47th capacitance C47, the 48th The 8 feet connection of one end of capacitance C48, one end of the 53rd resistance R53, the 15th chip U15,10 feet and the 53rd resistance The other end of R53 connects, and 11 feet are connect with one end of the 54th resistance R54, and 24 feet meet RTSUSB, and 25 feet meet RXD-MCU, and 26 Foot meets TXD-MCU, and 28 feet meet DTRUSB, the other end of the 45th capacitance C45, the other end of the 47th capacitance C47, the 4th 3 feet, the 15th chip U15 of the other end of 18 capacitance C48, the other end of the 54th resistance R54, the 15th chip U15 29 feet ground connection；
First chip J1 is general microUSB interfaces, the 11st chip U11 models SGM4056；
A termination MCU-VCC of 82nd resistance R82 in the power supply control button module, the 82nd resistance R82's The other end is connect with one end of the 8th button S8, the other end of the 8th button S8 and one end of the 83rd resistance R83, the 50th One end of four capacitance C54 connects and connects POWER-B-JC, the other end of the 83rd resistance R83, the 54th capacitance C54 it is another One end is grounded；
The label reads a termination MCU-VCC of first resistor R1 in key-press module, the other end of first resistor R1 and the One end of one button S1, one end of the tenth capacitance C10 connect and connect READER_MCU, the other end and first of the tenth capacitance C10 The other end of button S1 is connected and is grounded.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101464518A (en) * 2008-12-30 2009-06-24 郑之敏 Detection controller of RFID matrix distributed personnel positioning monitoring system and its monitoring method
CN103839092A (en) * 2014-03-06 2014-06-04 太仓欧卡网络服务有限公司 Ultrahigh-frequency RFID reader-writer
CN104021658A (en) * 2014-05-14 2014-09-03 浙江省农业科学院 GS1010-based Wi-Fi wireless sensor network data acquisition system
CN106599972A (en) * 2015-10-16 2017-04-26 中国科学院上海高等研究院 Super-high-frequency RFID tag chip impedance self-adaption circuit and realization method thereof
CN208506759U (en) * 2018-05-11 2019-02-15 杭州义益钛迪信息技术有限公司 High-precision ultrahigh frequency RFID near field tag detection system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101464518A (en) * 2008-12-30 2009-06-24 郑之敏 Detection controller of RFID matrix distributed personnel positioning monitoring system and its monitoring method
CN103839092A (en) * 2014-03-06 2014-06-04 太仓欧卡网络服务有限公司 Ultrahigh-frequency RFID reader-writer
CN104021658A (en) * 2014-05-14 2014-09-03 浙江省农业科学院 GS1010-based Wi-Fi wireless sensor network data acquisition system
CN106599972A (en) * 2015-10-16 2017-04-26 中国科学院上海高等研究院 Super-high-frequency RFID tag chip impedance self-adaption circuit and realization method thereof
CN208506759U (en) * 2018-05-11 2019-02-15 杭州义益钛迪信息技术有限公司 High-precision ultrahigh frequency RFID near field tag detection system

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