CN211457364U - Bluetooth BLE wireless microphone system - Google Patents
Bluetooth BLE wireless microphone system Download PDFInfo
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- CN211457364U CN211457364U CN202020474253.3U CN202020474253U CN211457364U CN 211457364 U CN211457364 U CN 211457364U CN 202020474253 U CN202020474253 U CN 202020474253U CN 211457364 U CN211457364 U CN 211457364U
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- bluetooth ble
- wireless microphone
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- ble chip
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- 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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Abstract
The utility model discloses a Bluetooth BLE wireless microphone system, which comprises a wireless microphone end and a loudspeaker receiving end; the wireless microphone end comprises a microphone, an analog-digital converter, a first Bluetooth BLE chip, a first RF low noise amplifier, a first ANT antenna, a first power supply unit and a battery, wherein the microphone, the analog-digital converter, the first Bluetooth BLE chip, the first RF low noise amplifier and the first ANT antenna are electrically connected in sequence from audio input to output; the loudspeaker receiving end comprises a loudspeaker, an AMP network module, a second Bluetooth BLE chip, a second RF low-noise amplifier, a second ANT antenna and a second power supply unit, and the second ANT antenna, the second RF low-noise amplifier, the second Bluetooth BLE chip, the AMP network module and the loudspeaker are sequentially and electrically connected from audio input to output. The utility model discloses a transmission speed is faster, the distance is farther, the interference killing feature is strong, the consumption is lower, the time delay is shorter, and the authentication is with low costs.
Description
Technical Field
The utility model relates to a wireless microphone technical field, concretely relates to bluetooth BLE wireless microphone system.
Background
The prior art comprises an FM/VHF/UHF wireless microphone and a traditional Bluetooth wireless microphone, and has the following defects:
1. the FM/VHF/UHF wireless microphone has the problem of mutual interference of the same frequency band, so that sound noise is easy to occur;
2. due to the frequency band control limitation of different countries, different frequency bands are required to be configured for different countries, which is not beneficial to product export and authentication;
3. the traditional Bluetooth wireless microphone has large time delay and poor experience, and is not suitable for karaoke products;
4. the traditional Bluetooth wireless microphone has large power consumption;
5. the frequency response of the traditional Bluetooth wireless microphone is too narrow, and human voice and music cannot be completely restored;
6. the transmission distance is not ideal and cannot be applied to a wide space.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a transmission speed is faster, transmission distance is farther, the interference killing feature is strong, the consumption is lower, the time delay is shorter, and bluetooth BLE wireless microphone system that the authentication cost is low.
The technical scheme of the utility model as follows:
a Bluetooth BLE wireless microphone system comprises a wireless microphone end and a loudspeaker receiving end; the wireless microphone end comprises a microphone, an analog-digital converter, a first Bluetooth BLE chip, a first RF low noise amplifier, a first ANT antenna, a first power supply unit and a battery, wherein the microphone, the analog-digital converter, the first Bluetooth BLE chip, the first RF low noise amplifier and the first ANT antenna are sequentially and electrically connected from audio input to output, the input end of the first power supply unit is electrically connected with the battery, and the output end of the first power supply unit is respectively and electrically connected with the analog-digital converter, the first Bluetooth BLE chip and the first RF low noise amplifier; the loudspeaker receiving end comprises a loudspeaker, an AMP network module, a second Bluetooth BLE chip, a second RF low-noise amplifier, a second ANT antenna and a second power supply unit, the second ANT antenna, the second RF low-noise amplifier, the second Bluetooth BLE chip, the AMP network module and the loudspeaker are sequentially and electrically connected from audio input to output, the input end of the second power supply unit is externally connected with a power supply line, and the output end of the second power supply unit is respectively and electrically connected with the AMP network module, the second Bluetooth BLE chip and the second RF low-noise amplifier; the first ANT antenna and the second ANT antenna communicate through a Bluetooth BLE chip.
Furthermore, the analog-to-digital converter contains a high-fidelity AD conversion chip.
Further, the analog-to-digital converter is connected with the first Bluetooth BLE chip through an I2S bus.
Further, the first Bluetooth BLE chip adopts a BT5.0/BT5.1 Bluetooth BLE chip.
Further, the first ANT antenna is a high-gain 2.4G antenna.
Further, the battery is detachable.
Further, the wireless microphone end further comprises a key input module, and the key input module is connected with the first Bluetooth BLE chip.
Further, the second ANT antenna is a high-gain 2.4G antenna.
Further, the second bluetooth BLE chip adopts a BT5.0/BT5.1 bluetooth BLE chip.
Further, the second Bluetooth BLE chip is connected with the AMP network module through an I2S bus.
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model utilizes the advantage of BT5.0/5.1 transmission speed to realize BLE audio transmission, greatly improves the transmission distance which can be as high as hundreds of meters; meanwhile, the Bluetooth transmission delay is shortened, so that the delay is reduced to within 15 ms; the standby time and the use time are prolonged by reducing the power consumption; the wireless microphone can be quickly and successfully connected with a receiving end through a BLE broadcasting technology; the BT5.0/5.1 Bluetooth authentication is simple, and the authentication cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Figure 1 is the utility model provides a pair of bluetooth BLE wireless microphone system's system components block diagram.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to explain the technical solution of the present invention, the following description is made by using specific examples.
Examples
Referring to fig. 1, the present embodiment provides a bluetooth BLE wireless microphone system, which includes a wireless microphone end and a speaker receiving end.
The wireless microphone end comprises a microphone 11, an analog-to-digital converter 12, a first Bluetooth BLE chip 13, a first RF low noise amplifier 14, a first ANT antenna 15, a first power supply unit 16 and a battery 17, wherein the microphone 11, the analog-to-digital converter 12, the first Bluetooth BLE chip 13, the first RF low noise amplifier 14 and the first ANT antenna 15 are electrically connected in sequence from audio input to output, and the analog-to-digital converter 12 is connected with the first Bluetooth BLE chip 13 through an I2S bus. The principle is as follows: the microphone 11 inputs audio, outputs bluetooth signals through the first bluetooth BLE chip 13 after signal conversion by the analog/digital converter 12, and the first RF low noise amplifier 14 amplifies the bluetooth signals and outputs the amplified bluetooth signals to the receiving end of the speaker by using the first ANT antenna 15. In this embodiment, the a/d converter 12 includes a high-fidelity AD conversion chip therein, the first bluetooth BLE chip 13 employs a BT5.0/BT5.1 bluetooth BLE chip, the first ANT antenna 15 is a high-gain 2.4G antenna, so as to implement a whole RF high-performance link, the AD conversion chip can highly restore the microphone signal and send the signal into the first bluetooth BLE chip 13 to the speaker receiving end through RF transmission, and the first RF low-noise amplifier 14 can amplify the signal, thereby improving the RF transmission capability, and further improving the anti-interference capability and the effective transmission distance. The first bluetooth BLE chip 13 may add some LED indications and key triggering functions as needed, and in this embodiment, the first bluetooth BLE chip 13 has a key triggering function, and the wireless microphone terminal further includes a key input module 18, where the key input module 18 is connected to the first bluetooth BLE chip 13.
The input end of the first power supply unit 16 is electrically connected to a battery 17, and the output end of the first power supply unit 16 is electrically connected to the analog-to-digital converter 12, the first bluetooth BLE chip 13, and the first RF low noise amplifier 14, respectively, so as to provide voltage for each component. The battery can be disassembled and replaced when the battery is not powered.
The horn receiving end comprises a horn 21, an AMP network module 22, a second bluetooth BLE chip 23, a second RF low noise amplifier 24, a second ANT antenna 25 and a second power supply unit 26, the second ANT antenna 25, the second RF low noise amplifier 24, the second bluetooth BLE chip 23, the AMP network module 22 and the horn 21 are electrically connected in sequence from audio input to output, and the second bluetooth BLE chip 23 is connected with the AMP network module 22 through an I2S bus. The principle is as follows: the second ANT antenna 25 receives a signal sent by the wireless microphone end, the signal is amplified by RF and then output to the AMP network module 22 through the second bluetooth BLE chip 23, and the AMP network module 22 outputs an audio signal through the speaker 21. In this embodiment, the second ANT antenna 25 is also a high-gain 2.4G antenna, the second bluetooth BLE chip 23 is also a BT5.0/BT5.1 bluetooth BLE chip, and the second RF low noise amplifier 24 may perform signal amplification processing to improve RF receiving capability, thereby improving anti-interference capability and effective transmission distance.
The input end of the second power supply unit 26 is externally connected with a power line, and the output end of the second power supply unit 26 is electrically connected with the AMP network module 22, the second bluetooth BLE chip 23 and the second RF low noise amplifier 24 respectively; thereby providing a voltage to the components.
Wherein, through bluetooth BLE chip communication between first ANT antenna 15 and the second ANT antenna 25, can improve transmission rate to 2Mbps and realize low latency and high tone quality.
To sum up, the transmitting end adopts a very simple peripheral configuration, the transmitting and receiving ends both adopt bluetooth BLE chips, the wireless microphone end is connected with the receiving end through the RSSI value, and the receiving end can be a portable receiver, a bluetooth sound box or a karaoke system.
The utility model makes full use of the advantage of BT5.0/5.1 transmission speed to realize BLE audio transmission, greatly improves the transmission distance which can be as high as hundreds of meters; meanwhile, the Bluetooth transmission delay is shortened, so that the delay is reduced to within 15 ms; the standby time and the use time are prolonged by reducing the power consumption; the wireless microphone can be quickly and successfully connected with a receiving end through a BLE broadcasting technology; the BT5.0/5.1 Bluetooth authentication is simple, and the authentication cost is reduced.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a bluetooth BLE wireless microphone system, includes wireless microphone end and loudspeaker receiving terminal, its characterized in that:
the wireless microphone end comprises a microphone, an analog-digital converter, a first Bluetooth BLE chip, a first RF low noise amplifier, a first ANT antenna, a first power supply unit and a battery, wherein the microphone, the analog-digital converter, the first Bluetooth BLE chip, the first RF low noise amplifier and the first ANT antenna are sequentially and electrically connected from audio input to output, the input end of the first power supply unit is electrically connected with the battery, and the output end of the first power supply unit is respectively and electrically connected with the analog-digital converter, the first Bluetooth BLE chip and the first RF low noise amplifier;
the loudspeaker receiving end comprises a loudspeaker, an AMP network module, a second Bluetooth BLE chip, a second RF low-noise amplifier, a second ANT antenna and a second power supply unit, the second ANT antenna, the second RF low-noise amplifier, the second Bluetooth BLE chip, the AMP network module and the loudspeaker are sequentially and electrically connected from audio input to output, the input end of the second power supply unit is externally connected with a power supply line, and the output end of the second power supply unit is respectively and electrically connected with the AMP network module, the second Bluetooth BLE chip and the second RF low-noise amplifier;
the first ANT antenna and the second ANT antenna communicate through a Bluetooth BLE chip.
2. The Bluetooth BLE wireless microphone system according to claim 1, wherein: the A/D converter contains a high-fidelity AD conversion chip.
3. The Bluetooth BLE wireless microphone system according to claim 1, wherein: the analog/digital converter is connected with the first Bluetooth BLE chip through an I2S bus.
4. The Bluetooth BLE wireless microphone system according to claim 1, wherein: the first Bluetooth BLE chip adopts a BT5.0/BT5.1 Bluetooth BLE chip.
5. The Bluetooth BLE wireless microphone system according to claim 1, wherein: the first ANT antenna is a high-gain 2.4G antenna.
6. The Bluetooth BLE wireless microphone system according to claim 1, wherein: the battery is removable.
7. The Bluetooth BLE wireless microphone system according to claim 1, wherein: the wireless microphone end further comprises a key input module, and the key input module is connected with the first Bluetooth BLE chip.
8. The Bluetooth BLE wireless microphone system according to claim 1, wherein: the second ANT antenna is a high-gain 2.4G antenna.
9. The Bluetooth BLE wireless microphone system according to claim 1, wherein: the second Bluetooth BLE chip adopts a BT5.0/BT5.1 Bluetooth BLE chip.
10. The Bluetooth BLE wireless microphone system according to claim 1, wherein: the second Bluetooth BLE chip is connected with the AMP network module through an I2S bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020474253.3U CN211457364U (en) | 2020-04-02 | 2020-04-02 | Bluetooth BLE wireless microphone system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020474253.3U CN211457364U (en) | 2020-04-02 | 2020-04-02 | Bluetooth BLE wireless microphone system |
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| Publication Number | Publication Date |
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| CN211457364U true CN211457364U (en) | 2020-09-08 |
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| CN202020474253.3U Active CN211457364U (en) | 2020-04-02 | 2020-04-02 | Bluetooth BLE wireless microphone system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112995819A (en) * | 2021-02-03 | 2021-06-18 | 深圳市志泽科技有限公司 | Wireless two-way communication system |
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- 2020-04-02 CN CN202020474253.3U patent/CN211457364U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112995819A (en) * | 2021-02-03 | 2021-06-18 | 深圳市志泽科技有限公司 | Wireless two-way communication system |
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