CN206302413U - A kind of frequency induction wireless near field communication circuit - Google Patents
A kind of frequency induction wireless near field communication circuit Download PDFInfo
- Publication number
- CN206302413U CN206302413U CN201621166760.0U CN201621166760U CN206302413U CN 206302413 U CN206302413 U CN 206302413U CN 201621166760 U CN201621166760 U CN 201621166760U CN 206302413 U CN206302413 U CN 206302413U
- Authority
- CN
- China
- Prior art keywords
- circuit
- mcu
- circuits
- signal processing
- magnetic field
- 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.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 22
- 230000006698 induction Effects 0.000 title claims abstract description 7
- 230000009471 action Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 230000005672 electromagnetic field Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Landscapes
- Near-Field Transmission Systems (AREA)
Abstract
A kind of frequency induction wireless near field communication circuit, including loudspeaker magnetic field signal sensor circuit, signal processing circuit, MCU circuits, execution MCU command circuits, LDO circuit, loudspeaker magnetic field signal sensor circuit is connected with signal processing circuit, MCU circuits, execution MCU command circuits successively, and LDO circuit is connected with signal processing circuit, MCU circuits, execution MCU command circuits respectively.The utility model has the advantages that inexpensive the short distance wireless communication technology, and feature is not limited by metal shell, makes up the shortcoming that NFC communication on the market is limited by metal shell.
Description
Technical field
The utility model patent is related to a kind of frequency induction wireless near field communication circuit to do the short distance wireless communication technology
Circuit, feature be do not limit metal shell do communication sensed position closely contactless communication technology.
Background technology
Probably in 2003, philips semiconductors and Sony corporation plans at that time are developed based on contactless card technique
A kind of wireless communication technique compatible.Philip Pai Liaoyige team closes the border three together to Japan and sony engineer
Month, then combine externally issue on a kind of wireless communication technique of compatible current ISO14443 contactless card agreements, it is named
NFC is Near Field Communication.The technical specification is based on 13.56MHz frequencies between defining two NFC devices
Wireless communication mode, there is no card reader in the world of NFC, without card, only NFC device.This specification define NFC device
The both of which of communication:Aggressive mode and Passive Mode.As RFID, NFC information is also by wireless frequency portion in frequency spectrum
The electromagnetic induction coupled modes transmission for dividing, but between the two or in the presence of very big difference.First, NFC be it is a kind of provide easily,
Safety, the wireless connection technology of rapidly communication, its transmission range are smaller than RFID.Secondly, NFC and existing contactless smart card skill
Art is compatible, has become and obtains the official standard that more and more leading firms support.Again, NFC or one kind are closely connected
Agreement, there is provided various equipment rooms easily, safely, rapidly and automatically communicate.Compared with other connected modes in wireless world,
NFC is a kind of secret communication mode closely.NFC device can serve as the read write line end of contact type intelligent card, smart card
, to the data transmission link of equipment, its application can be divided mainly into following four fundamental type for end and equipment：For paying the bill and purchasing
Ticket, for electronic bill, for smart media and for exchanging, transmitting data.
Utility model patent content
The purpose of the utility model patent aims to provide that a kind of circuit is simple, with low cost, not limit structure material low coverage
From communication technology circuit, to fill up blank of the prior art.
By a kind of frequency induction wireless near field communication circuit that this purpose is designed, including loudspeaker magnetic field signal induced electricity
Road, signal processing circuit, MCU circuits, perform MCU command circuits, LDO circuit, loudspeaker magnetic field signal sensor circuit successively with letter
Number process circuit, MCU circuits, perform the connection of MCU command circuits, LDO circuit respectively with signal processing circuit, MCU circuits, perform
MCU command circuits are connected, and loudspeaker magnetic field signal sensor circuit is made up of an inductance and an electric capacity parallel connection.
Loudspeaker magnetic field signal sensor circuit in the utility model patent successively with signal processing circuit, MCU circuits, perform
MCU command circuits are connected, and LDO circuit is connected with signal processing circuit, MCU circuits, execution MCU command circuits respectively.Can be complete
Into the assignment instructions that intelligent terminal APP sends, the requirement needed for realizing people.
Loudspeaker magnetic field signal sensor circuit in the utility model patent is used to receive the signal that intelligent terminal loudspeaker send
A specific field frequency is produced, is received through loudspeaker magnetic field signal sensor circuit and is given signal processing circuit treatment, export one
The data signal " X or Y " that MCU is capable of identify that, MCU carries out computing, sends intelligent terminal APP corresponding instructions after obtaining the signal
Action command accurately realizes that intelligent terminal APP instructs task to the circuit for performing MCU orders.
The utility model patent have can utilize the audio signal that have of intelligent terminal in itself complete near field communication (NFC) function,
Low cost, the characteristics of do not limited by sheathing material.
Brief description of the drawings
Fig. 1 is the circuit side connector block diagram of the utility model patent Example.
Fig. 2 is the circuit connection diagram of the utility model loudspeaker magnetic field signal sensor circuit and signal processing circuit.
Fig. 3 is the circuit theory diagrams of the utility model LDO circuit.
Fig. 4 is the circuit theory diagrams of the utility model MCU circuits.
Fig. 5 is the circuit theory diagrams that the utility model performs MCU command circuits.
In figure：1st, loudspeaker magnetic field signal sensor circuit, 2, signal processing circuit, 3, MCU circuits, 4, to perform MCU orders electric
Road, 5, LDO circuit.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to patent of the present invention.
Referring to Fig. 1-Fig. 5, a kind of this frequency induction wireless near field communication circuit, including the loudspeaker magnetic field letter being sequentially connected
Number sensor circuit 1, signal processing circuit 2, MCU circuits 3, perform MCU command circuits 4 and connect, also including LDO circuit 5, LDO electricity
Road is connected with signal processing circuit, MCU circuits, execution MCU command action circuits respectively.The magnetic that the pronunciation of intelligent terminal loudspeaker is produced
Field frequencies range signal is sent to MCU circuits by loudspeaker magnetic field signal sensor circuit, signal processing circuit, and the control of MCU circuits is performed
MCU command circuits 4 are acted.Loudspeaker magnetic field signal sensor circuit is to receive intelligent terminal loudspeaker to send electromagnetism produced during sound
Field frequencies range signal and be made up of an inductance and an electric capacity parallel connection, the signal by intelligent terminal system program be set to one or
Multiple frequencies are " X or Y " frequency, and loudspeaker magnetic field signal sensor circuit is received after the electromagnetic field frequency signal by " at signal
After the completion of reason circuit " treatment, obtain frequency X or Y and be supplied to " MCU circuits " to recognize, MCU circuits are by identification " signal transacting electricity
The signal that road " provides is processed, and after the completion of " MCU circuits " treatment, corresponding order is sent to " performing MCU command circuits ",
Allow " performing MCU command circuits " to perform corresponding action, complete the mission requirements that intelligent terminal sends.Whole complete process
Advantage is exactly the characteristics of audio signal having completes near field communication (NFC) function, low cost, do not limited by sheathing material.
The general principle and principal character of the utility model patent, and the utility model patent has been shown and described above
Advantage.Industry technical staff it should be appreciated that the utility model patent is not restricted to the described embodiments, above-described embodiment and
Principle of the present utility model simply is said described in specification, on the premise of the utility model spirit and scope are not departed from, this
Utility model also has various changes and modifications, and these changes and improvements are both fallen within the range of claimed the utility model.
The claimed scope of the utility model is by appending claims and its equivalent thereof.
Claims (1)
1. a kind of frequency induction wireless near field communication circuit, it is characterised in that including the loudspeaker magnetic field signal sense being sequentially connected
Answer circuit, signal processing circuit, MCU circuits, execution MCU command actions circuit and while be connected to signal processing circuit, MCU electricity
Road, the LDO circuit performed on MCU command action circuits；The loudspeaker magnetic field signal sensor circuit is used to receive intelligent terminal loudspeaker
Electromagnetic field frequency signal produced when sending sound and it is made up of an inductance and an electric capacity parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621166760.0U CN206302413U (en) | 2016-10-31 | 2016-10-31 | A kind of frequency induction wireless near field communication circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621166760.0U CN206302413U (en) | 2016-10-31 | 2016-10-31 | A kind of frequency induction wireless near field communication circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206302413U true CN206302413U (en) | 2017-07-04 |
Family
ID=59202395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621166760.0U Active CN206302413U (en) | 2016-10-31 | 2016-10-31 | A kind of frequency induction wireless near field communication circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206302413U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018212957B3 (en) | 2018-08-02 | 2020-01-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | TRANSFER OF DATA FROM ONE USER TERMINAL TO ANOTHER DEVICE |
| WO2020157098A1 (en) * | 2019-01-30 | 2020-08-06 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Bidirectional configuration of sensor nodes with mobile telephone without expansion |
| US12294422B2 (en) | 2019-05-10 | 2025-05-06 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Efficient communication to configure sensor nodes |
-
2016
- 2016-10-31 CN CN201621166760.0U patent/CN206302413U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018212957B3 (en) | 2018-08-02 | 2020-01-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | TRANSFER OF DATA FROM ONE USER TERMINAL TO ANOTHER DEVICE |
| US11757490B2 (en) | 2018-08-02 | 2023-09-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V | Data transmission from a user terminal to another apparatus |
| WO2020157098A1 (en) * | 2019-01-30 | 2020-08-06 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Bidirectional configuration of sensor nodes with mobile telephone without expansion |
| CN113475012A (en) * | 2019-01-30 | 2021-10-01 | 弗劳恩霍夫应用研究促进协会 | Bidirectional configuration of sensor nodes by non-extension mobile phones |
| US12096167B2 (en) | 2019-01-30 | 2024-09-17 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Bidirectional configuration of sensor nodes with mobile phone with no extension |
| US12294422B2 (en) | 2019-05-10 | 2025-05-06 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Efficient communication to configure sensor nodes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205039816U (en) | Near field communication NFC device | |
| US9397384B2 (en) | Touching an antenna of a near field communications (NFC) device to control its operation | |
| CN202652217U (en) | Nfc chip | |
| CN206302413U (en) | A kind of frequency induction wireless near field communication circuit | |
| CN202077102U (en) | Realization device for near field communication (NFC) mobile phone | |
| CN103051752B (en) | Active coding and decoding mobile phone smart card with built-in sensing antenna | |
| JP6100366B2 (en) | Pendants and terminals | |
| CN204557497U (en) | Double frequency intelligent RF identification integrated system | |
| WO2017133557A1 (en) | Magnetic stripe card simulation device and data transmission system | |
| CN204759476U (en) | Card is encrypted to two interfaces logic with NFC function | |
| CN104022768A (en) | Passive magnetic induction button device | |
| CN207164210U (en) | A kind of test device of smart card | |
| CN105512716A (en) | Multifunctional IC card | |
| CN207650857U (en) | It is a kind of to be blocked entirely using the NFC bluetooths of stacked package | |
| CN207557999U (en) | A kind of NFC bluetooths for supporting multi-channel digital certification are blocked entirely | |
| CN203941532U (en) | A kind of portable IC card read-write equipment | |
| CN207352643U (en) | Card system based on NFC | |
| CN201965652U (en) | Client card | |
| CN203630800U (en) | Near-field communication tag equipment | |
| CN106452519A (en) | Audio induction near field wireless communication circuit | |
| CN203968096U (en) | A kind of passive magnetic strength key device | |
| CN205510045U (en) | Non -contact intelligence communication device | |
| CN203338367U (en) | Radio frequency reader-writer | |
| CN206411700U (en) | A kind of special-shaped sensing coupling multi-channel digital certification radio-frequency SIM card | |
| CN103034824A (en) | Non-contact integrated circuit (IC) card communication device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |