Nothing Special   »   [go: up one dir, main page]

CN109448181A - A kind of antitheft access control system - Google Patents

A kind of antitheft access control system Download PDF

Info

Publication number
CN109448181A
CN109448181A CN201811236446.9A CN201811236446A CN109448181A CN 109448181 A CN109448181 A CN 109448181A CN 201811236446 A CN201811236446 A CN 201811236446A CN 109448181 A CN109448181 A CN 109448181A
Authority
CN
China
Prior art keywords
capacitor
module
input terminal
output end
access control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811236446.9A
Other languages
Chinese (zh)
Inventor
高栩峰
陈丹凤
唐镇豪
郑君锐
殷锋
殷一锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan University
Original Assignee
Foshan University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foshan University filed Critical Foshan University
Priority to CN201811236446.9A priority Critical patent/CN109448181A/en
Publication of CN109448181A publication Critical patent/CN109448181A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00571Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by interacting with a central unit
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B5/00Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/77Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The invention discloses a kind of antitheft access control systems, including power module, STM32 controller, face recognition module, image capture module, electromagnetic door lock module, WIFI communication module and NFC module, described image acquisition module output end is connected with face recognition module input terminal, the face recognition module output end is connected with STM32 controller input terminal, the STM32 controller output end is connected with electromagnetic door lock module input, the WIFI communication module and STM32 controller two-way communication link, the NFC module output end are connected with STM32 controller input terminal.The invention passes through WIFI communication module for image capture module institute acquired image information, by in Internet transmission to user mobile phone APP end, user can understand situation outdoors, and control instruction is sent to access control system by cell phone application end, realize user to the long-range monitoring of access control system and control function;The invention simultaneously realizes that label card identifies unlocking function using NFC module, meets the needs of different user.

Description

A kind of antitheft access control system
Technical field
The present invention relates to access control system technical fields.
Background technique
With the continuous development of social science and technology, requirement of the people for security door is higher and higher, from simple in the past antitheft, To the intelligent anti-theft of today.
Existing intelligent access control system product is various, but current access control system do not configure it is corresponding realize it is long-range distant Function is controlled, user is caused not carry out early warning according to real time status outdoors in time.
In addition, existing access control system unlocking mode is more single, common unlocking mode includes fingerprint recognition, face knowledge Not and label card identifies, and current access control system leads to access control system a variety of unlocking modes are not combined It is lacking in safety.
Summary of the invention
The technical problem to be solved by the present invention is how to realize the telecommunication and control function between access control system and user Can, and how to combine two kinds of unlocking modes of tag recognition and recognition of face.
The solution that the present invention solves its technical problem is:
A kind of antitheft access control system, including power module, STM32 controller, face recognition module, image capture module, Electromagnetic door lock module, WIFI communication module and the NFC for being communicated with the smart phone configured near field communication (NFC) function Module, the power module are electrically connected with each circuit module respectively, described image acquisition module output end and recognition of face Module input is connected, and the face recognition module output end is connected with STM32 controller input terminal, the STM32 controller Output end is connected with electromagnetic door lock module input, the WIFI communication module and STM32 controller two-way communication link, described NFC module output end is connected with STM32 controller input terminal.
As a further improvement of the above technical scheme, the NFC module includes signal processing unit and recognition unit, The signal processing unit is connected with recognition unit input terminal, the recognition unit output end and STM32 controller input terminal phase Even.
As a further improvement of the above technical scheme, the signal processing unit includes antenna, match circuit, EMC filter Wave circuit and reception circuit;The antenna configuration has power pins, grounding pin and signal pins;The match circuit packet Include resistance R1, resistance R2, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5 and capacitor C6;The EMC filter circuit Including capacitor C7, capacitor C8, inductance L1 and inductance L2;The reception circuit includes resistance R3, resistance R4, capacitor C9 and electricity Hold C10;The grounding pin of the antenna is connected to the ground, and the power pins of antenna successively pass through concatenated resistance R1 and capacitor C1 It is connected with grounding pin, capacitor C2 is in parallel with capacitor C1, and capacitor C3 and capacitor C7 are connected on the both ends capacitor C2, and inductance L1 mono- is terminated Between capacitor C3 and capacitor C7, the other end is connected with recognition unit, and the signal pins of antenna successively pass through concatenated resistance R2 And capacitor C4 is connected with grounding pin, capacitor C5 is in parallel with capacitor C4, and capacitor C6 and capacitor C8 are connected on the both ends capacitor C5, electricity Feel between L2 mono- end Jie capacitor C6 and capacitor C8, the other end is connected with recognition unit, mono- end Jie capacitor C6 of resistance R3 and electricity Feel between L2, the other end is connected by concatenated capacitor C9 and resistance R4 with recognition unit, the one end capacitor C10 and recognition unit It is connected, other end ground connection.
As a further improvement of the above technical scheme, the recognition unit includes the radio frequency chip of model PN532, institute It states signal processing unit to be connected with radio frequency chip input terminal, the radio frequency chip output end is connected with STM32 controller input terminal.
As a further improvement of the above technical scheme, the electromagnetic door lock module includes resistance R5, triode Q1, two poles Pipe D1 and relay J1, the STM32 controller output end are connected by resistance R5 with triode Q1 base stage, triode Q1 hair Emitter grounding, triode Q1 collector are connected with diode D1 anode, and diode D1 cathode is connected with power module, triode Q1 Collector is connected by relay J1 input circuit with power module.
As a further improvement of the above technical scheme, the power module includes switching power circuit, the type for exporting 5V Number for the first voltage regulator chip of AMS1117, the second voltage regulator chip of model XC6219 and model RT9193 third Voltage regulator chip, the first voltage regulator chip input terminal are connected with switching power circuit output end, the second voltage-stablizer core Piece input terminal and third voltage regulator chip input terminal are connected with the first voltage regulator chip output end.
As a further improvement of the above technical scheme, described image acquisition module includes the camera of model OV2640 Mould group, the camera module are connected with face recognition module input terminal.
As a further improvement of the above technical scheme, the WIFI communication module is the WIFI mould of model RAK439 Group.
The beneficial effects of the present invention are: the present invention passes through WIFI communication module for image capture module institute acquired image Information, by Internet transmission to user mobile phone APP end, the real-time image information that user is transmitted according to access control system is on the door Outer situation is understood, and sends control instruction to access control system by cell phone application end, realizes user to the long-range of access control system Monitoring and control function;The invention simultaneously realizes that label card identifies unlocking function using NFC module, meets different user Demand.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described.Obviously, described attached drawing is a part of the embodiments of the present invention, rather than is all implemented Example, those skilled in the art without creative efforts, can also be obtained according to these attached drawings other designs Scheme and attached drawing.
Fig. 1 is the system framework figure of the invention;
Fig. 2 is the NFC module embodiment schematic diagram of the invention;
Fig. 3 is the electromagnetic door lock module embodiments schematic diagram of the invention;
Fig. 4 is the power module embodiment schematic diagram of the invention.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the application, specific structure and generation clear Chu, complete description, to be completely understood by the purpose, feature and effect of the application.Obviously, described embodiment is this Shen A part of the embodiment please, rather than whole embodiments, are based on embodiments herein, and those skilled in the art is not paying Other embodiments obtained under the premise of creative work belong to the range of the application protection.In addition, be previously mentioned in text All connection relationships, not single finger element directly connects, and referring to can be according to specific implementation situation, by adding or reducing connection Element, Lai Zucheng more preferably circuit structure.Each technical characteristic in the application creation, under the premise of not conflicting conflict It can be with combination of interactions.
Referring to Fig.1, the invention discloses a kind of antitheft access control system, including power module, STM32 controller, people Face identification module, image capture module, electromagnetic door lock module, WIFI communication module and be used for and be configured near field communication (NFC) function The NFC module that is communicated of smart phone, the power module is electrically connected with each circuit module respectively, and described image is adopted Collection module output end is connected with face recognition module input terminal, and the face recognition module output end and STM32 controller input End is connected, and the STM32 controller output end is connected with electromagnetic door lock module input, the WIFI communication module and STM32 Controller two-way communication link, the NFC module output end are connected with STM32 controller input terminal.Specifically, the invention By WIFI communication module by image capture module institute acquired image information, by Internet transmission to user mobile phone APP On end, the real-time image information that user is transmitted according to access control system understands situation outdoors, and by cell phone application end to Access control system sends control instruction, realizes user to the long-range monitoring of access control system and control function;The invention simultaneously It realizes that label card identifies unlocking function using NFC module, meets the needs of different user.
It is further used as preferred embodiment, in the invention specific embodiment, the NFC module includes signal Processing unit and recognition unit, the signal processing unit are connected with recognition unit input terminal, the recognition unit output end It is connected with STM32 controller input terminal.
Referring to Fig. 2, further, the signal processing unit include antenna, match circuit, EMC filter circuit and Receive circuit;The antenna configuration has power pins, grounding pin and signal pins;The match circuit include resistance R1, Resistance R2, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5 and capacitor C6;The EMC filter circuit includes capacitor C7, capacitor C8, inductance L1 and inductance L2;The reception circuit includes resistance R3, resistance R4, capacitor C9 and capacitor C10;Institute The grounding pin for stating antenna is connected to the ground, and the power pins of antenna successively pass through concatenated resistance R1 and capacitor C1 and grounding lead Foot is connected, and capacitor C2 is in parallel with capacitor C1, and capacitor C3 and capacitor C7 are connected on the both ends capacitor C2, mono- end Jie capacitor C3 of inductance L1 Between capacitor C7, the other end is connected with recognition unit, and the signal pins of antenna successively pass through concatenated resistance R2 and capacitor C4 is connected with grounding pin, and capacitor C5 is in parallel with capacitor C4, and capacitor C6 and capacitor C8 are connected on the both ends capacitor C5, the one end inductance L2 It connecing between capacitor C6 and capacitor C8, the other end is connected with recognition unit, between resistance R3 mono- end Jie capacitor C6 and inductance L2, The other end is connected by concatenated capacitor C9 and resistance R4 with recognition unit, and the one end capacitor C10 is connected with recognition unit, another End ground connection.
In the invention, the recognition unit includes the radio frequency chip of model PN532, the signal processing unit with Radio frequency chip input terminal is connected, and the radio frequency chip output end is connected with STM32 controller input terminal.
Referring to Fig. 3, it is further used as preferred embodiment, in the invention specific embodiment, the electromagnetic door Lock module includes that resistance R5, triode Q1, diode D1 and relay J1, the STM32 controller output end pass through resistance R5 is connected with triode Q1 base stage, and triode Q1 emitter ground connection, triode Q1 collector is connected with diode D1 anode, two poles Pipe D1 cathode is connected with power module, and triode Q1 collector is connected by relay J1 input circuit with power module, wherein The triode Q1 is mainly used for increasing STM32 controller to the drive control ability of relay J1.
Referring to Fig. 4, it is further used as preferred embodiment, in the invention specific embodiment, the power supply mould Block includes the output switching power circuit of 5V, the first voltage regulator chip of model AMS1117, the second pressure stabilizing of model XC6219 The third voltage regulator chip of device chip and model RT9193, the first voltage regulator chip input terminal and switching power circuit Output end is connected, the second voltage regulator chip input terminal and third voltage regulator chip input terminal with the first voltage regulator chip Output end is connected.The 5V voltage of input is converted into 3.3V voltage using the first voltage regulator chip by present embodiment, utilizes second The 3.3V voltage of input is converted into 1.5V voltage by voltage regulator chip, is turned the 3.3V voltage of input using third voltage regulator chip Change 2.8V voltage into, i.e., the described power module can externally provide the voltage interface of 5V, 3.3V, 2.8V and 1.5V, present invention wound Different voltage interfaces can voluntarily be selected according to power itself demand by making each circuit module.
It is further used as preferred embodiment, in the invention specific embodiment, described image acquisition module packet The camera module of model OV2640 is included, the camera module is connected with face recognition module input terminal.It additionally needs It is bright, the face recognition module can be one it is independent, for carrying out the hardware circuit of image procossing, be also possible to match It sets inside STM32 controller, for carrying out the software program module of image procossing.Specifically, the face recognition module 3 big functions are mainly configured with, first is Face datection function, for detected human face region in image;Second is living body Detection function, for judging whether face is true man in image;Third is match cognization function, for judging the face in image Whether it is user, if it is, STM32 controller directly controls the starting of electromagnetic door lock module, security door is opened, if not It is that image information is then transferred on user mobile phone APP end by STM32 controller by image information by WIFI communication module, by User is sent to access control system by cell phone application end and is ordered, and decides whether to control the starting of electromagnetic door lock module.
It is further used as preferred embodiment, in the invention specific embodiment, the WIFI communication module is The WIFI mould group of model RAK439.
The better embodiment of the application is illustrated above, but the application creation is not limited to the implementation Example, those skilled in the art can also make various equivalent modifications under the premise of without prejudice to the application spirit or replace It changes, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.

Claims (8)

1. a kind of antitheft access control system, it is characterised in that: including power module, STM32 controller, face recognition module, image Acquisition module, electromagnetic door lock module, WIFI communication module and for configured near field communication (NFC) function smart phone carry out The NFC module of communication, the power module respectively with each circuit module be electrically connected, described image acquisition module output end with Face recognition module input terminal is connected, and the face recognition module output end is connected with STM32 controller input terminal, described STM32 controller output end is connected with electromagnetic door lock module input, the WIFI communication module and STM32 controller two-way Letter connection, the NFC module output end are connected with STM32 controller input terminal.
2. a kind of antitheft access control system according to claim 1, it is characterised in that: the NFC module includes signal processing Unit and recognition unit, the signal processing unit are connected with recognition unit input terminal, the recognition unit output end with STM32 controller input terminal is connected.
3. a kind of antitheft access control system according to claim 2, it is characterised in that: the signal processing unit includes day Line, match circuit, EMC filter circuit and reception circuit;The antenna configuration has power pins, grounding pin and signal to draw Foot;The match circuit includes resistance R1, resistance R2, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5 and capacitor C6;The EMC filter circuit includes capacitor C7, capacitor C8, inductance L1 and inductance L2;The reception circuit include resistance R3, Resistance R4, capacitor C9 and capacitor C10;The grounding pin of the antenna is connected to the ground, and the power pins of antenna successively pass through string The resistance R1 and capacitor C1 of connection are connected with grounding pin, and capacitor C2 is in parallel with capacitor C1, and capacitor C3 and capacitor C7 are connected on electricity Hold the both ends C2, between inductance L1 mono- end Jie capacitor C3 and capacitor C7, the other end is connected with recognition unit, the signal pins of antenna Successively it is connected by concatenated resistance R2 and capacitor C4 with grounding pin, capacitor C5 is in parallel with capacitor C4, capacitor C6 and capacitor C8 is connected on the both ends capacitor C5, and between inductance L2 mono- end Jie capacitor C6 and capacitor C8, the other end is connected with recognition unit, resistance Between R3 mono- end Jie capacitor C6 and inductance L2, the other end is connected by concatenated capacitor C9 and resistance R4 with recognition unit, The one end capacitor C10 is connected with recognition unit, other end ground connection.
4. a kind of antitheft access control system according to claim 3, it is characterised in that: the recognition unit includes model The radio frequency chip of PN532, the signal processing unit are connected with radio frequency chip input terminal, the radio frequency chip output end with STM32 controller input terminal is connected.
5. a kind of antitheft access control system according to claim 1, it is characterised in that: the electromagnetic door lock module includes resistance R5, triode Q1, diode D1 and relay J1, the STM32 controller output end pass through resistance R5 and triode Q1 base Extremely it is connected, triode Q1 emitter ground connection, triode Q1 collector is connected with diode D1 anode, diode D1 cathode and power supply Module is connected, and triode Q1 collector is connected by relay J1 input circuit with power module.
6. a kind of antitheft access control system according to claim 1, it is characterised in that: the power module includes output 5V Switching power circuit, the first voltage regulator chip of model AMS1117, the second voltage regulator chip of model XC6219 and model For the third voltage regulator chip of RT9193, the first voltage regulator chip input terminal is connected with switching power circuit output end, institute It states the second voltage regulator chip input terminal and third voltage regulator chip input terminal is connected with the first voltage regulator chip output end.
7. a kind of antitheft access control system according to claim 1, it is characterised in that: described image acquisition module includes model For the camera module of OV2640, the camera module is connected with face recognition module input terminal.
8. a kind of antitheft access control system according to claim 1, it is characterised in that: the WIFI communication module is model The WIFI mould group of RAK439.
CN201811236446.9A 2018-10-23 2018-10-23 A kind of antitheft access control system Pending CN109448181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811236446.9A CN109448181A (en) 2018-10-23 2018-10-23 A kind of antitheft access control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811236446.9A CN109448181A (en) 2018-10-23 2018-10-23 A kind of antitheft access control system

Publications (1)

Publication Number Publication Date
CN109448181A true CN109448181A (en) 2019-03-08

Family

ID=65548219

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811236446.9A Pending CN109448181A (en) 2018-10-23 2018-10-23 A kind of antitheft access control system

Country Status (1)

Country Link
CN (1) CN109448181A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021078145A1 (en) * 2019-10-23 2021-04-29 武昌理工学院 Wireless sensing facial recognition device based on living body sensing and movement trend detection
CN112785758A (en) * 2021-01-20 2021-05-11 赣州市正途科技有限公司 Door lock capable of recognizing human face and voice through artificial intelligence
CN112910951A (en) * 2021-01-13 2021-06-04 中山大学 Loader running state monitoring system based on OBD-II technology
CN113379956A (en) * 2021-08-11 2021-09-10 四川智优羊科技有限公司 Netty4 pipeline cross-network protocol communication method applied to campus access control

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101552614A (en) * 2009-04-30 2009-10-07 上海复旦微电子股份有限公司 Single antenna tuning circuit used for near field communication equipment
CN205451237U (en) * 2016-03-23 2016-08-10 哈尔滨理工大学 Compatible RFID and NFC's building entrance guard device
CN206340120U (en) * 2016-12-23 2017-07-18 福建瑞之付微电子有限公司 A kind of exported based on POS double antenna connects application circuit with the non-of reception
CN107134030A (en) * 2017-04-28 2017-09-05 长沙金定信息技术有限公司 A kind of prison access control system based on recognition of face image processing techniques
CN206711180U (en) * 2017-05-17 2017-12-05 重庆和贯科技有限公司 Gate-ban Monitoring System
CN108109250A (en) * 2018-01-29 2018-06-01 长沙舍同智能科技有限责任公司 Recognition of face contact-free access controller and intelligent door
CN108399345A (en) * 2017-02-06 2018-08-14 恩智浦有限公司 NFC reader with self-seeker
CN209168213U (en) * 2018-10-23 2019-07-26 佛山科学技术学院 A kind of antitheft access control system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101552614A (en) * 2009-04-30 2009-10-07 上海复旦微电子股份有限公司 Single antenna tuning circuit used for near field communication equipment
CN205451237U (en) * 2016-03-23 2016-08-10 哈尔滨理工大学 Compatible RFID and NFC's building entrance guard device
CN206340120U (en) * 2016-12-23 2017-07-18 福建瑞之付微电子有限公司 A kind of exported based on POS double antenna connects application circuit with the non-of reception
CN108399345A (en) * 2017-02-06 2018-08-14 恩智浦有限公司 NFC reader with self-seeker
CN107134030A (en) * 2017-04-28 2017-09-05 长沙金定信息技术有限公司 A kind of prison access control system based on recognition of face image processing techniques
CN206711180U (en) * 2017-05-17 2017-12-05 重庆和贯科技有限公司 Gate-ban Monitoring System
CN108109250A (en) * 2018-01-29 2018-06-01 长沙舍同智能科技有限责任公司 Recognition of face contact-free access controller and intelligent door
CN209168213U (en) * 2018-10-23 2019-07-26 佛山科学技术学院 A kind of antitheft access control system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
汪亮: "基于NFC近场通信技术的门禁系统研究和设计", 中国优秀硕士学位论文全文数据库信息科技辑, vol. 2014, no. 9, pages 22 - 23 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021078145A1 (en) * 2019-10-23 2021-04-29 武昌理工学院 Wireless sensing facial recognition device based on living body sensing and movement trend detection
CN112910951A (en) * 2021-01-13 2021-06-04 中山大学 Loader running state monitoring system based on OBD-II technology
CN112785758A (en) * 2021-01-20 2021-05-11 赣州市正途科技有限公司 Door lock capable of recognizing human face and voice through artificial intelligence
CN113379956A (en) * 2021-08-11 2021-09-10 四川智优羊科技有限公司 Netty4 pipeline cross-network protocol communication method applied to campus access control
CN113379956B (en) * 2021-08-11 2021-11-02 四川智优羊科技有限公司 Netty4 pipeline cross-network protocol communication method applied to campus access control

Similar Documents

Publication Publication Date Title
CN109448181A (en) A kind of antitheft access control system
CN102768781B (en) NFC (Near Field Communication) mobile phone electronic lock control system and NFC mobile phone electronic lock control device
JP2012518851A (en) Terminal supporting enhancement type short-range wireless communication and processing method thereof
MX2011005426A (en) Radio frequency sim card, radio frequency card reader and magnetic induction control method for radio frequency communication.
CN107547103A (en) NFC and wireless charging common antenna system and method
CN209168213U (en) A kind of antitheft access control system
CN203070333U (en) Card sleeve of intelligent card
CN204946023U (en) The pluggable hardware configuration device of a kind of modularization
CN102832961A (en) Multi-band signal transceiving device
CN109782636B (en) Control method of laundry system
CN208188916U (en) A kind of full-automatic antitheft access control system
CN209357068U (en) NFC circuit and terminal device
CN210038898U (en) Intelligent access control system
CN205176507U (en) Smart home systems based on zigbee
CN208367721U (en) A kind of low-power consumption IC card reader based on NB-IoT
CN204408421U (en) Based on the NFC mobile phone Circuits System of Adaptive matching circuit
CN207752486U (en) A kind of active RFID record card device based on bluetooth
CN202920147U (en) Near field wireless communication medical device with switching communication line
CN108961517A (en) A kind of shared lock system
CN205160520U (en) Passive NFC communication interface with independent energy receiving antenna
CN209787468U (en) intelligent trunk awakening system
CN209708167U (en) Intelligent computable radio frequency identification tag
CN206833453U (en) A kind of multimode card reader and building residence intercom
CN107094037B (en) The front end hardware circuit of dynamic token and its method for awarding seed or production configuration
CN203071928U (en) Automatic power-adjusting multi-band signal transceiver device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20190308