CN204305282U - A kind of blue teeth wireless microphone - Google Patents
A kind of blue teeth wireless microphone Download PDFInfo
- Publication number
- CN204305282U CN204305282U CN201420306865.6U CN201420306865U CN204305282U CN 204305282 U CN204305282 U CN 204305282U CN 201420306865 U CN201420306865 U CN 201420306865U CN 204305282 U CN204305282 U CN 204305282U
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- China
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- audio frequency
- bluetooth
- bluetooth audio
- wireless microphone
- receiving terminal
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Abstract
The utility model relates to a kind of wireless microphone based on NFC and bluetooth, solves existing blue teeth wireless microphone and matches the problems such as property easy to connect is poor, reliability is low, can only connect one to one.This blue teeth wireless microphone comprises transmitting terminal and receiving terminal, and transmitting terminal comprises Bluetooth audio frequency transmitter module, NFC label, microphone, Li-Ion rechargeable battery, external microphone socket, volume knob, power switch button, charging inlet; Receiving terminal comprises Bluetooth audio frequency module, NFC card reading module, Single Chip Microcomputer (SCM) system, control panel, external control panel interface, bluetooth external antenna interface, audio output circuit, audio output interface, band gain NFC antenna, power supply adaptor.This blue teeth wireless microphone utilization NFC technique realizes transmitting terminal and is connected with the quick pairing of receiving terminal bluetooth module, realize receiving terminal by Single Chip Microcomputer (SCM) system and Bluetooth audio frequency module to be connected with multi-section transmitting terminal, Single Chip Microcomputer (SCM) program also can be stopped non-permitted device and connect, convenient, reliable, practical.
Description
Technical field
The utility model belongs to blue teeth wireless microphone field, relates to a kind of blue teeth wireless microphone.
Background technology
Common wireless microphone uses FM, VHF, uhf band mode of frequency regulation, there is between similar frequency bands microphone the problem mutually disturbed, alter frequency in actual use, affects result of use.Therefore, occurred blue teeth wireless microphone on the market, because Bluetooth communication adopts ID code encryption transmission technology, ID code reaches 1,000,000 groups, often overlaps product and only has unique ID code, has thoroughly stopped the generation that traditional analog wireless microphone alters phenomenon frequently.
But the blue teeth wireless microphone on existing market is in communication distance, various bluetooth equipments except microphone transmitting terminal all likely match with receiving terminal and are connected, have impact on the reliability that microphone uses, transmitting terminal and receiving terminal must to match and to match the connect hours longer by button, also have impact on the convenience of use.In addition, on market existing blue teeth wireless microphone in working order next receiving terminal only to plug into a transmitting terminal simultaneously, the needs such as meeting can not be met and to plug into the demand of multiple transmitting terminal occasion.
Near-field communication (NFC) is one contactless close range wireless communication modes easily, and it can be applied in the pairing connection procedure of bluetooth equipment, improves the simplicity of its speed connected and operation.But NFC technique is multiplex is at present connected with the pairing of other bluetooth equipments at mobile phone, and the pairing not yet for blue teeth wireless microphone connects.
Summary of the invention
The problems referred to above that the utility model exists for prior art, propose a kind of blue teeth wireless microphone, this blue teeth wireless microphone carries out pairing by NFC technique and connects, only need microphone transmitting terminal can connect rapidly near receiving terminal NFC antenna in actual use, therefore can not incorrect link to other not close to the bluetooth equipment of NFC antenna, improve convenience and the reliability of use.In addition, also control jumper switch by address in Single Chip Microcomputer (SCM) system and realize the control of MAC code, the permission equipment only in the list of Single Chip Microcomputer (SCM) system storage address just can connect, the reliability of further enhancing system and fail safe.
The utility model is realized by following technical proposal: a kind of blue teeth wireless microphone, is divided into transmitting terminal and receiving terminal two parts: transmitting terminal comprises Bluetooth audio frequency transmitter module, NFC label, Electret condenser microphone, Li-Ion rechargeable battery, external microphone interface, volume knob, power switch button, Mini-USB charging inlet; Receiving terminal comprises Bluetooth audio frequency module, NFC card reading module, Single Chip Microcomputer (SCM) system, control panel, external control panel interface, bluetooth external antenna interface, audio output circuit, audio output interface, bluetooth external antenna, band gain NFC antenna, power supply adaptor.It is characterized in that, write the MAC Address of Bluetooth audio frequency transmitter module in the NFC label of transmitting terminal, the NFC card reading module of receiving terminal is connected with Bluetooth audio frequency module by Single Chip Microcomputer (SCM) system.
This blue teeth wireless microphone realizes transmitting terminal by Single Chip Microcomputer (SCM) system control NFC card reading module with the communication between Bluetooth audio frequency module in Bluetooth audio frequency module and is connected with the quick pairing of receiving terminal, disconnects, and control jumper switch by address in Single Chip Microcomputer (SCM) system and start Single Chip Microcomputer (SCM) program and judge that trial connects the MAC Address of equipment whether within permission list of device addresses in memory, stop non-permitted equipment and connect.
In above-mentioned blue teeth wireless microphone, the power switch button of transmitting terminal controls startup or the closedown of Bluetooth audio frequency transmitter module, volume knob can regulate matching the sound output size of receiving terminal Bluetooth audio frequency module, lithium ion battery is charged by Mini-USB charging inlet, can pass through the external stereophone of external microphone interface as required.
In above-mentioned blue teeth wireless microphone, the control panel of receiving terminal there is volume knob can control audio output circuit power output size, have and restart restarting of Bluetooth audio frequency module in button control NFC card reading module, Single Chip Microcomputer (SCM) system, Bluetooth audio frequency module, have LED light display system operating state.External control panel can be connected by external control panel interface in connecting line mode be convenient to using of equipment and install.Receiving terminal is provided with external antenna slot, can increase communication distance by external high-gain Bluetooth antenna.
In above-mentioned blue teeth wireless microphone, Bluetooth audio frequency module number in receiving terminal Bluetooth audio frequency module can be expanded as required and adjust Single Chip Microcomputer (SCM) program in Single Chip Microcomputer (SCM) system, realize a receiving terminal to plug into multiple transmitting terminal transmission of audio signal simultaneously, and by exporting the audio signal from multiple transmitting terminal after audio output circuit mixing.
Compared with prior art, the beneficial effects of the utility model are: realize blue teeth wireless microphone transmitting terminal by NFC technique and be connected with the pairing between receiving terminal, significantly improve simplicity and the agility of matching operation, avoid simultaneously and match with the mistake of other bluetooth equipments that (are greater than 10cm) in communication distance, also allow the transmitting terminal bluetooth module MAC Address connected by programming setting, significantly enhance reliability and the fail safe of blue teeth wireless microphone.In addition, realize a receiving terminal to plug into multi-section transmitting terminal transmission of audio signal simultaneously by expanding in receiving terminal Bluetooth audio frequency module mcu programming in Bluetooth audio frequency module number and Single Chip Microcomputer (SCM) system, enhance the practicality of blue teeth wireless microphone.
Accompanying drawing explanation
Fig. 1 is blue teeth wireless microphone transmitting terminal schematic block circuit diagram.
Fig. 2 is blue teeth wireless microphone receiving terminal circuit theory diagram.
Fig. 3 is blue teeth wireless microphone transmitting terminal structure chart.
In figure, 1, CSR V4.0 Bluetooth audio frequency transmitter module (containing PCB inverted F shaped antenna), 2, NFC label, 3, Electret condenser microphone, 4, volume knob, 5, power switch button, 6, Li-Ion rechargeable battery, 7, external microphone interface, 8, Mini-USB charging inlet, 9, detachable tie clip and hangers support, 10, outer casing upper cover, 11, relay indicating light window, 12, shell.
Fig. 4 is blue teeth wireless microphone receiving terminal structure chart.
In figure, 1, CSR V4.0 Bluetooth audio frequency module (this example comprises 2 Bluetooth audio frequency modules), 2, bluetooth external antenna interface, 3, external Bluetooth antenna, 4, PN532NFC card reading module, 5, NFC antenna interface, 6, band gain NFC antenna, 7, AT89C52 Single Chip Microcomputer (SCM) system, 8, audio output circuit, 9, audio output interface, 10, control panel, 11, external control panel interface, 12, external control panel, 13, mains switch, 14, power adaptor interface, 15, power supply adaptor, 16, address control jumper switch.
Embodiment
Be below that specific embodiment of the utility model is also described further the technical solution of the utility model by reference to the accompanying drawings, but the utility model is not limited to these embodiments.
As shown in Figure 1, this blue teeth wireless microphone transmitting terminal comprises CSR V4.0 Bluetooth audio frequency transmitter module (1), PCB inverted F shaped antenna (2), NFC label (3), Electret condenser microphone (4), volume knob (5), power switch button (6), external microphone interface (7), Li-Ion rechargeable battery (8), Mini-USB charging inlet (9).
As shown in Figure 2, this blue teeth wireless microphone receiving terminal comprises CSR V4.0 Bluetooth audio frequency module (1), PCB antenna (2), PN532NFC card reading module (3), band gain NFC antenna (4), AT89C52 Single Chip Microcomputer (SCM) system (5), control panel (6), external control panel interface (7), audio output circuit (8), audio output interface (9), external antenna interface (10).
The control panel of this blue teeth wireless microphone receiving terminal comprises volume knob, system restart button, LED working station indicator, when receiving terminal is arranged on the places such as cupboard inside by needs, external control panel interface can be used by connecting line to be connected the external control panel with identical function.This blue teeth wireless microphone receiving terminal has external antenna interface, when being arranged on the shielding space inside such as metal when machine or needing to increase audio transmission distance, connects outside high-gain Bluetooth antenna by bluetooth external antenna interface.
This blue teeth wireless microphone specific works mode is as follows: by the MAC Address of transmitting terminal CSR V4.0 Bluetooth audio frequency transmitter module chip write NFC label, by each CSR V4.0 Bluetooth audio frequency module chip, AT89C52 single-chip microcomputer in program respectively burned transmitting terminal CSR V4.0 Bluetooth audio frequency transmitter module chip, receiving terminal Bluetooth audio frequency module.
The NFC label of transmitting terminal and the band gain NFC antenna of receiving terminal are closely near rear (within 10cm), receiving terminal PN532NFC card reading module reads CSR V4.0 Bluetooth audio frequency transmitter module chip mac address information in transmitting terminal NFC label, CSR V4.0 Bluetooth audio frequency module idle in receiving terminal Bluetooth audio frequency module is transferred to after the process of AT89C52 Single Chip Microcomputer (SCM) system, this CSR V4.0 Bluetooth audio frequency module uses this mac address information to match fast with transmitting terminal CSR V4.0 Bluetooth audio frequency transmitter module to be connected, after connection establishment, the voice signal of transmitting terminal Electret condenser microphone pickup transfers to receiving terminal CSR V4.0 Bluetooth audio frequency module by CSR V4.0 Bluetooth audio frequency transmitter module, exported by audio output interface after audio output circuit process.
When a receiving terminal plugs into multiple transmitting terminal simultaneously, the CSR V4.0 Bluetooth audio frequency module of respective numbers can be expanded as required in receiving terminal Bluetooth audio frequency module, AT89C52 Single Chip Microcomputer (SCM) system program judges Bluetooth audio frequency module pairs link information each in Bluetooth audio frequency module and stores, when follow-up trial connects transmitting end equipment MAC Address not when matching in list, its mac address information being transferred to and not yet matches the CSR V4.0 Bluetooth audio frequency module connected and carry out pairing connection.
When the strict control connection equipment of needs, control jumper switch by address in setting AT89C52 Single Chip Microcomputer (SCM) system and start control program, control program mac address information in comparison memory in pairing connection procedure, time within the transmitter MAC Address of attempting connecting in memory address list, transmitter MAC Address is transferred to CSR V4.0 Bluetooth audio frequency module idle in receiving terminal Bluetooth audio frequency module and carries out pairing connection, otherwise pairing connection request is disregarded.
Disconnect: transmitting terminal NFC label is again closely close with the band gain NFC antenna of receiving terminal, PN532NFC card reading module by transmitting terminal CSR Bluetooth chip MAC information transmission to AT89C52 Single Chip Microcomputer (SCM) system, AT89C52 Single Chip Microcomputer (SCM) system program judge this address be in connection status after in receiving terminal Bluetooth audio frequency module corresponding CSR V4.0 Bluetooth audio frequency module send and restart signal and disconnect.
Volume adjusting: in the audio transmission process after transmitting terminal and receiving terminal connect, the volume knob of transmitting terminal can be used to regulate volume, volume adjustment signals is sent to the receiving terminal CSR V4.0 Bluetooth audio frequency module being in connection status by transmitting terminal CSR V4.0 Bluetooth audio frequency transmitter module, and receiving terminal CSR V4.0 Bluetooth audio frequency module exports the volume of audio output circuit to according to signal adjustment.Volume knob on receiving terminal control panel or external control panel then directly adjusts the output volume size of audio output circuit.
Mains switch with restart: transmitting terminal power switch button is long by more than 3 seconds, electric power starting, start working after the initialization of CSR V4.0 Bluetooth audio frequency transmitter module, under operating state, long press more than power switch button 3 second, power-off, CSR V4.0 Bluetooth audio frequency transmitter module quits work, and can realize restarting of transmitting terminal by closing with power-on; Receiving terminal is provided with mains switch and controls power supply switching, control panel and external control panel are equipped with and restart button, pressing all CSR V4.0 Bluetooth audio frequency modules, AT89C52 Single Chip Microcomputer (SCM) system in rear PN532NFC card reading module, Bluetooth audio frequency module will reinitialize.
Claims (6)
1. a blue teeth wireless microphone, is divided into transmitting terminal and receiving terminal two parts: transmitting terminal comprises Bluetooth audio frequency transmitter module, NFC label, Electret condenser microphone, Li-Ion rechargeable battery, external microphone interface, volume knob, power switch button, Mini-USB charging inlet; Receiving terminal comprises Bluetooth audio frequency module, NFC card reading module, Single Chip Microcomputer (SCM) system, control panel, external control panel interface, bluetooth external antenna interface, audio output circuit, audio output interface, bluetooth external antenna, band gain NFC antenna, power supply adaptor.
2. blue teeth wireless microphone according to claim 1, it is characterized in that, in this blue teeth wireless microphone transmitting terminal NFC label in the MAC Address of Bluetooth audio frequency transmitter module, transmitting terminal is provided with the volume knob and power switch button that are connected with Bluetooth audio frequency transmitter module.
3. blue teeth wireless microphone according to claim 2, is characterized in that, described Bluetooth audio frequency transmitter module adopts CSR V4.0 Bluetooth audio frequency transmitter module, and this Bluetooth audio frequency transmitter module comprises PCB inverted F shaped antenna.
4. blue teeth wireless microphone according to claim 1, is characterized in that, the NFC card reading module of receiving terminal is connected with Bluetooth audio frequency module by Single Chip Microcomputer (SCM) system, and above-mentioned Bluetooth audio frequency module is made up of Bluetooth audio frequency block combiner.
5. blue teeth wireless microphone according to claim 4, is characterized in that, described Bluetooth audio frequency module adopts CSR V4.0 Bluetooth audio frequency module, and this Bluetooth audio frequency module comprises PCB antenna, and connects bluetooth external antenna interface.
6. blue teeth wireless microphone according to claim 1, it is characterized in that, be provided with address in receiving terminal Single Chip Microcomputer (SCM) system and control jumper switch, receiving terminal control panel and external control panel have volume knob, restarts button and LED light, receiving terminal is provided with external control panel interface and bluetooth external antenna interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420306865.6U CN204305282U (en) | 2014-06-10 | 2014-06-10 | A kind of blue teeth wireless microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420306865.6U CN204305282U (en) | 2014-06-10 | 2014-06-10 | A kind of blue teeth wireless microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204305282U true CN204305282U (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420306865.6U Expired - Fee Related CN204305282U (en) | 2014-06-10 | 2014-06-10 | A kind of blue teeth wireless microphone |
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| Country | Link |
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| CN (1) | CN204305282U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356915A (en) * | 2015-10-27 | 2016-02-24 | 明基电通有限公司 | Wireless projected brief report receiver and operation method for wireless projected brief report receiver |
| CN105916069A (en) * | 2016-04-19 | 2016-08-31 | 安徽理工大学 | Intelligent microphone capable of converting voice into text in real time |
| CN106998509A (en) * | 2016-10-12 | 2017-08-01 | 深圳容通达电子有限公司 | A kind of wireless microphone with Bluetooth transmission |
-
2014
- 2014-06-10 CN CN201420306865.6U patent/CN204305282U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356915A (en) * | 2015-10-27 | 2016-02-24 | 明基电通有限公司 | Wireless projected brief report receiver and operation method for wireless projected brief report receiver |
| CN105916069A (en) * | 2016-04-19 | 2016-08-31 | 安徽理工大学 | Intelligent microphone capable of converting voice into text in real time |
| CN106998509A (en) * | 2016-10-12 | 2017-08-01 | 深圳容通达电子有限公司 | A kind of wireless microphone with Bluetooth transmission |
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| DD01 | Delivery of document by public notice |
Addressee: Qiao Mingzhe Document name: Notification to Go Through Formalities of Registration |
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| DD01 | Delivery of document by public notice |
Addressee: Qiao Mingzhe Document name: Notification that Entitlement to Patent Deemed Abandoned |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20200610 |
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| CF01 | Termination of patent right due to non-payment of annual fee |