CN110728837A - Basketball formula intelligence audio amplifier control system based on wireless mode - Google Patents
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/30—Electric signal transmission systems in which transmission is by selection of one or more conductors or channels from a plurality of conductors or channels
- G08C19/34—Electric signal transmission systems in which transmission is by selection of one or more conductors or channels from a plurality of conductors or channels of a combination of conductors or channels
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/007—Protection circuits for transducers
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Abstract
The invention relates to the field of sound box control, and discloses a basketball type intelligent sound box control system based on a wireless mode, which comprises a control terminal and a basketball type intelligent sound box, wherein a sound box control APP is installed on the control terminal, the control terminal comprises a main controller, a microphone, a first touch screen, a memory, a voice recognition module and a first wireless communication module, and the basketball type intelligent sound box comprises a microprocessor, a second wireless communication module, a second touch screen, an audio processing circuit and a loudspeaker; the audio processing circuit comprises a voltage input end, a first potentiometer, a first capacitor, a second potentiometer, a second capacitor, a first triode, a third resistor, a third capacitor, a fourth potentiometer, a second diode, a first diode, a sixth potentiometer, a second triode, a seventh resistor, a fifth resistor, a third triode, a fourth capacitor and a storage battery. The invention has the advantages of more flexible control mode, higher circuit safety and reliability and safe power supply.
Description
Technical Field
The invention relates to the field of sound box control, in particular to a basketball type intelligent sound box control system based on a wireless mode.
Background
The bluetooth speaker indicates built-in bluetooth chip to the stereo set equipment that traditional wire rod was connected is replaced in the bluetooth connection, through being connected with bluetooth playback devices such as cell-phone panel computer and notebook, reaches convenient and fast's purpose. At present, bluetooth speaker uses portable audio amplifier as the owner, and the appearance is generally comparatively small and exquisite portable, and bluetooth speaker technique also relies on its characteristics that make things convenient for the people to be valued at the consumer gradually and accept, and common bluetooth speaker on the market is mostly single sound channel audio amplifier (single speaker unit), has also emerged the multichannel audio amplifier that some tone quality are excellent simultaneously (two or more speaker unit). The control mode of the existing sound box can only be controlled in a Bluetooth mode, and the control mode is single and cannot be flexibly controlled. In addition, the circuit part of some existing bluetooth sound boxes lacks corresponding circuit protection functions, such as: the lack of current-limiting protection causes the low safety and reliability of the circuit, which affects the safe power supply.
Disclosure of Invention
The invention aims to solve the technical problem of providing a basketball type intelligent sound box control system based on a wireless mode, which has the advantages of more flexible control mode, higher circuit safety and reliability and safe power supply.
The technical scheme adopted by the invention for solving the technical problems is as follows: construct a basketball formula intelligence audio amplifier control system based on wireless mode, including control terminal and basketball formula intelligence audio amplifier, install audio amplifier control APP on the control terminal, control terminal includes main control unit, microphone, first touch screen, memory, speech recognition module and first wireless communication module, basketball formula intelligence audio amplifier includes microprocessor, second wireless communication module, second touch screen, audio processing circuit and speaker, main control unit respectively with the microphone, first touch screen, the memory with the speech recognition module is connected, main control unit loops through first wireless communication module with the second wireless communication module is connected with microprocessor, the second touch screen with microprocessor is connected, microprocessor passes through the audio processing circuit and is connected with the speaker, the first wireless communication module and the second wireless communication module are respectively a Bluetooth module, a WiFi module, a GSM module, a GPRS module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module or a LoRa module;
the audio processing circuit comprises a voltage input end, a first potentiometer, a first capacitor, a second potentiometer, a second capacitor, a first triode, a third resistor, a third capacitor, a fourth potentiometer, a second diode, a first diode, a sixth potentiometer, a second triode, a seventh resistor, a fifth resistor, a third triode, a fourth capacitor and a storage battery, wherein one end of the voltage input end is connected with one end of the first potentiometer, the sliding end of the first potentiometer is connected with one end of the first capacitor, the other end of the first potentiometer is grounded, the other end of the voltage input end is connected with one fixed end of the second potentiometer, the sliding end of the second potentiometer is connected with one end of the second capacitor, and the other end of the first capacitor is respectively connected with the base electrode of the first triode, the other end of the second capacitor, The anode of the second diode, one end of the third capacitor, the anode of the first diode, one end of the fifth resistor and the base of the third triode are connected, the cathode of the second diode is respectively connected with the collector of the first triode, one fixed end of the fourth potentiometer and the base of the second triode, the other end of the third capacitor is respectively connected with the other fixed end of the fourth potentiometer, the sliding end, the emitter of the third triode, the emitter of the fourth triode and one end of the fourth capacitor, the other end of the fifth resistor is respectively connected with the collector of the third triode and the anode of the storage battery, the cathode of the first diode is connected with one fixed end of the sixth potentiometer, the other fixed end of the sixth potentiometer is connected with the sliding end, the collector of the second triode and the base of the fourth triode, the projecting pole of second triode with the one end of seventh resistance is connected, the projecting pole of first triode respectively with the one end of third resistance, the other end of fourth electric capacity with the one end of speaker is connected, another stiff end of second potentiometre, the other end of third resistance, the other end of seventh resistance, the collecting electrode of fourth triode, the other end of speaker and the negative pole of battery is connected.
In the basketball type intelligent sound box control system based on the wireless mode, the type of the second diode is E-562.
In the basketball-type smart sound box control system based on the wireless mode, the audio processing circuit further comprises an eighth resistor, one end of the eighth resistor is connected with a collector electrode of the fourth triode, and the other end of the eighth resistor is grounded.
In the basketball-type intelligent sound box control system based on the wireless mode, the resistance value of the eighth resistor is 26k omega.
In the basketball-type intelligent sound box control system based on the wireless mode, the audio processing circuit further comprises a third diode, the anode of the third diode is connected with the emitter of the first triode, and the cathode of the third diode is connected with the other end of the fourth capacitor and one end of the loudspeaker.
In the basketball type intelligent sound box control system based on the wireless mode, the type of the third diode is S-701T.
In the basketball-type intelligent sound box control system based on the wireless mode, the first triode is an NPN-type triode.
In the basketball-type intelligent sound box control system based on the wireless mode, the second triode is an NPN-type triode.
In the basketball-type intelligent sound box control system based on the wireless mode, the third triode is an NPN-type triode.
In the basketball-type intelligent sound box control system based on the wireless mode, the fourth triode is a PNP triode.
The basketball type intelligent sound box control system based on the wireless mode has the following beneficial effects: the basketball type intelligent sound box comprises a microprocessor, a second wireless communication module, a second touch screen, an audio processing circuit and a loudspeaker, wherein the first wireless communication module and the second wireless communication module are respectively a Bluetooth module, a WiFi module, a GSM module, a GPRS module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module or a LoRa module, so that the basketball type intelligent sound box can be controlled in a plurality of wireless modes; the audio processing circuit comprises a voltage input end, a first potentiometer, a first capacitor, a second potentiometer, a second capacitor, a first triode, a third resistor, a third capacitor, a fourth potentiometer, a second diode, a first diode, a sixth potentiometer, a second triode, a seventh resistor, a fifth resistor, a third triode, a fourth capacitor and a storage battery, wherein the second diode is used for current limiting protection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a basketball-type smart sound box control system based on a wireless mode according to the present invention;
fig. 2 is a circuit schematic of the audio processing circuit in the embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the embodiment of the basketball-type smart sound box control system based on the wireless mode, the structural schematic diagram of the basketball-type smart sound box control system based on the wireless mode is shown in fig. 1. In fig. 1, the basketball-type smart speaker control system based on the wireless mode includes a control terminal 1 and a basketball-type smart speaker 2, wherein, control terminal 1 is last to install audio amplifier control APP, this audio amplifier control APP is used for carrying out the audio amplifier remote control, control terminal 1 includes main control unit 11, microphone 12, first touch screen 13, memory 14, speech recognition module 15 and first wireless communication module 16, basketball formula intelligence audio amplifier 2 includes microprocessor 21, second wireless communication module 22, second touch screen 23, audio processing circuit 24 and speaker B, main control unit 11 respectively with microphone 12, first touch screen 13, memory 14 and speech recognition module 15 are connected, main control unit 11 loops through first wireless communication module 16 and second wireless communication module 22 and is connected with microprocessor 21, second touch screen 23 is connected with microprocessor 21, microprocessor 21 passes through audio processing circuit 24 and is connected with speaker B.
Adopt wireless communication mode as data path, adopt wireless mode to carry out signal transmission, realize the K of basketball formula intelligence audio amplifier and speak ware function. Through audio amplifier control APP, can realize control terminal 1 to the remote control of basketball formula intelligence audio amplifier. The basketball type intelligent sound box can be remotely controlled through voice or the first touch screen 13.
Microphone 12 picks up voice information and sends for main control unit 11, and voice recognition module 15 discerns voice information, and audio amplifier control APP carries out remote control to basketball formula intelligence audio amplifier 2 according to the voice information of discernment, through basketball formula intelligence audio amplifier 2 and control terminal 1's wireless connection, realizes basketball formula intelligence audio amplifier 2 to microphone 12's voice signal's real-time broadcast.
In this embodiment, the first wireless communication module 16 and the second wireless communication module 22 are a bluetooth module, a WiFi module, a GSM module, a GPRS module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module, or a LoRa module. Through setting up multiple wireless communication mode, not only can increase wireless communication mode's flexibility, can also satisfy the demand of different users and different occasions. Especially, when adopting the loRa module, its communication distance is far away, and communication performance is comparatively stable, is applicable to the occasion that requires highly to communication quality. The control terminal 1 can remotely control or control the basketball type intelligent sound box 2 in various wireless modes, so that the control mode is flexible.
It should be noted that, in this embodiment, the control terminal 1 may be a smart phone or a tablet computer.
Fig. 2 is a schematic circuit diagram of the audio processing circuit in the embodiment, in fig. 2, the audio processing circuit 24 includes a voltage input terminal Vin, a first potentiometer RP1, a first capacitor C1, a second potentiometer RP2, a second capacitor C2, a first transistor Q1, a third resistor R3, a third capacitor C3, a fourth potentiometer RP4, a second diode D2, a first diode D1, a sixth potentiometer RP6, a second transistor Q2, a seventh resistor R7, a fifth resistor R5, a third transistor Q3, a fourth transistor Q4, a fourth capacitor C4, and a battery BAT, wherein one end of the voltage input terminal Vin is connected to one end of the first potentiometer RP1, a sliding end of the first potentiometer RP1 is connected to one end of the first capacitor C1, the other end of the first potentiometer RP1 is grounded, the other end of the voltage input terminal Vin is connected to one end of the second potentiometer RP2, a fixed end of the second potentiometer RP2 is connected to the second capacitor C2, the other end of the first capacitor C1 is connected to the base of the first triode Q1, the other end of the second capacitor C2, the anode of the second diode D2, one end of the third capacitor C3, the anode of the first diode D1, one end of the fifth resistor R5 and the base of the third triode Q3, the cathode of the second diode D2 is connected to the collector of the first triode Q1, one fixed end of the fourth potentiometer RP4 and the base of the second triode Q2, the other end of the third capacitor C3 is connected to the other fixed end of the fourth potentiometer RP4, the sliding end, the emitter of the third triode Q3, the emitter of the fourth triode Q4 and one end of the fourth capacitor C4, the other end of the fifth resistor R5 is connected to the collector of the third triode Q3 and the anode of the storage battery, the cathode of the first diode D1 is connected to one fixed end of the sixth potentiometer RP6, and the other fixed end of the sliding end of the sixth resistor R6 is connected to the sliding end of the second potentiometer Q73734, The collector of the second triode Q2 is connected with the base of the fourth triode Q4, the emitter of the second triode Q2 is connected with one end of the seventh resistor R7, the emitter of the first triode Q1 is connected with one end of the third resistor R3, the other end of the fourth capacitor C4 and one end of the loudspeaker B, the other fixed end of the second potentiometer RP2, the other end of the third resistor R3, the other end of the seventh resistor R7, the collector of the fourth triode Q4, the other end of the loudspeaker B and the negative electrode of the battery BAT are connected.
In this embodiment, the second diode D2 is a current limiting diode for current limiting protection. The current limiting protection principle is as follows: when the current of the branch where the second diode D2 is located is large, the current of the branch where the second diode D2 is located can be reduced by the second diode D2, so that the branch is kept in a normal working state, and the components in the circuit are not burned out due to too large current, so that the safety and reliability of the circuit are high, and safe power supply is realized. It should be noted that in the present embodiment, the second diode D2 is of type E-562. Of course, in practical applications, the second diode D2 may also be another type of diode with similar functions.
In this embodiment, the first potentiometer RP1 is a volume potentiometer, the first transistor Q1 is a pre-amplifier transistor, which constitutes a pre-amplifier stage, and the third resistor R3 has a small resistance value, which mainly plays a role of ac negative feedback. The second transistor Q2 is a driver amplifier transistor and constitutes a driver stage that provides sufficient driving signal to the power amplified output stage.
The sixth potentiometer RP6 provides a bias voltage for the second transistor Q2 to ensure that the second transistor Q2 operates in a class a amplification state, and a part of the collector current of the second transistor Q2 flows through the fourth potentiometer RP4 and the first diode D1 to provide a bias voltage for the third transistor Q3 and the fourth transistor Q4. Therefore, the resistor R4, the potentiometer RP5, and the diode D1 are not only collector loads of the second transistor Q2, but also base bias circuits of the third transistor Q3 and the fourth transistor Q4. The third triode Q3 and the fourth triode Q4 are complementary symmetrical push-pull power amplifying tubes, and form an output stage of the power amplifier, and each tube is connected into an emitter follower form, so that the power amplifier has the advantages of low output resistance, strong load capacity and the like, is suitable for being used as a power output stage, can stabilize the static working point of the amplifier on one hand, and improves nonlinear distortion simultaneously.
The fourth capacitor C4 is an output coupling capacitor, generally has a large capacitance, the third capacitor C3 is a bootstrap capacitor, and the fifth resistor R5 forms a bootstrap circuit, so as to increase the amplitude of the positive half cycle of the output voltage, increase the power gain, obtain a large dynamic range, and reduce distortion.
When a sinusoidal alternating current signal is input to the voltage input end Vin, the sinusoidal alternating current signal is divided by the first potentiometer RP1, amplified by the first triode Q1, amplified and inverted by the second triode Q2, and simultaneously applied to the base electrodes of the third triode Q3 and the fourth triode Q4. The positive half cycle of the sinusoidal ac signal turns the third transistor Q3 on, the fourth transistor Q4 off, and current flows through the speaker B while charging the fourth capacitor C4. In the negative half cycle of the voltage input Vin, the fourth transistor Q4 is turned on, the third transistor Q3 is turned off, and the charged fourth capacitor C4 functions as a power source to discharge through the speaker B, so that a complete sine wave is obtained on the speaker B.
In this embodiment, the first transistor Q1 is an NPN transistor, the second transistor Q2 is an NPN transistor, the third transistor Q3 is an NPN transistor, and the fourth transistor Q4 is a PNP transistor. Certainly, in practical applications, the first transistor Q1, the second transistor Q2, and the third transistor Q3 may also all adopt PNP transistors, and the fourth transistor Q4 may also adopt NPN transistors, but the circuit structure is also changed accordingly.
In this embodiment, the audio processing circuit 24 further includes an eighth resistor R8, one end of the eighth resistor R8 is connected to the collector of the fourth transistor Q4, and the other end of the eighth resistor R8 is grounded. The eighth resistor R8 is a current limiting resistor, and is used for current limiting protection of the emitter current of the fourth transistor Q4. The current limiting protection principle is as follows: when the emitter current of the fourth triode Q4 is large, the eighth resistor R8 can reduce the emitter current of the fourth triode Q4 to keep the fourth triode Q4 in a normal operating state, so that the device in the circuit is not burned out due to too large current, and the safety and reliability of the circuit are further enhanced. It should be noted that, in the present embodiment, the resistance of the eighth resistor R8 is 26k Ω. Of course, in practical applications, the resistance of the eighth resistor R8 may be adjusted according to specific situations, that is, the resistance of the eighth resistor R8 may be increased or decreased according to specific situations.
In this embodiment, the audio processing circuit 24 further includes a third diode D3, an anode of the third diode D3 is connected to an emitter of the first transistor Q1, and a cathode of the third diode D3 is connected to the other end of the fourth capacitor C4 and one end of the speaker B. The third diode D3 is a current limiting diode for current limiting protection. The current limiting protection principle is as follows: when the current of the branch where the third diode D3 is located is large, the current of the branch where the third diode D3 is located can be reduced by the third diode D3, so that the branch can be kept in a normal operating state, and the component in the circuit is not burned out due to the large current, so as to further enhance the safety and reliability of the circuit. It should be noted that in this embodiment, the model of the third diode D3 is S-701T. Of course, in practical applications, the third diode D3 may also be another type of diode with similar functions.
In short, in this embodiment, the control terminal 1 can remotely control the basketball-type smart speaker 2 in multiple wireless manners, and the audio processing circuit 24 is provided with a current-limiting diode, so that the control manner of the invention is flexible, the safety and reliability of the circuit are high, and safe power supply is realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A basketball type intelligent sound box control system based on a wireless mode is characterized by comprising a control terminal and a basketball type intelligent sound box, wherein a sound box control APP is installed on the control terminal, the control terminal comprises a main controller, a microphone, a first touch screen, a memory, a voice recognition module and a first wireless communication module, the basketball type intelligent sound box comprises a microprocessor, a second wireless communication module, a second touch screen, an audio processing circuit and a loudspeaker, the main controller is respectively connected with the microphone, the first touch screen, the memory and the voice recognition module, the main controller is connected with the microprocessor through the first wireless communication module and the second wireless communication module in sequence, the second touch screen is connected with the microprocessor, and the microprocessor is connected with the loudspeaker through the audio processing circuit, the first wireless communication module and the second wireless communication module are respectively a Bluetooth module, a WiFi module, a GSM module, a GPRS module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module or a LoRa module;
the audio processing circuit comprises a voltage input end, a first potentiometer, a first capacitor, a second potentiometer, a second capacitor, a first triode, a third resistor, a third capacitor, a fourth potentiometer, a second diode, a first diode, a sixth potentiometer, a second triode, a seventh resistor, a fifth resistor, a third triode, a fourth capacitor and a storage battery, wherein one end of the voltage input end is connected with one end of the first potentiometer, the sliding end of the first potentiometer is connected with one end of the first capacitor, the other end of the first potentiometer is grounded, the other end of the voltage input end is connected with one fixed end of the second potentiometer, the sliding end of the second potentiometer is connected with one end of the second capacitor, and the other end of the first capacitor is respectively connected with the base electrode of the first triode, the other end of the second capacitor, The anode of the second diode, one end of the third capacitor, the anode of the first diode, one end of the fifth resistor and the base of the third triode are connected, the cathode of the second diode is respectively connected with the collector of the first triode, one fixed end of the fourth potentiometer and the base of the second triode, the other end of the third capacitor is respectively connected with the other fixed end of the fourth potentiometer, the sliding end, the emitter of the third triode, the emitter of the fourth triode and one end of the fourth capacitor, the other end of the fifth resistor is respectively connected with the collector of the third triode and the anode of the storage battery, the cathode of the first diode is connected with one fixed end of the sixth potentiometer, the other fixed end of the sixth potentiometer is connected with the sliding end, the collector of the second triode and the base of the fourth triode, the projecting pole of second triode with the one end of seventh resistance is connected, the projecting pole of first triode respectively with the one end of third resistance, the other end of fourth electric capacity with the one end of speaker is connected, another stiff end of second potentiometre, the other end of third resistance, the other end of seventh resistance, the collecting electrode of fourth triode, the other end of speaker and the negative pole of battery is connected.
2. The wireless-based basketball-type smart speaker control system as in claim 1, wherein said second diode is of type E-562.
3. The wireless-based basketball-type smart sound box control system according to claim 1, wherein the audio processing circuit further comprises an eighth resistor, one end of the eighth resistor is connected to the collector of the fourth triode, and the other end of the eighth resistor is grounded.
4. The wireless-based basketball-type smart sound box control system of claim 3, wherein the eighth resistor has a resistance of 26k Ω.
5. The wireless-based basketball-type smart speaker control system as recited in claim 1, wherein the audio processing circuit further comprises a third diode, an anode of the third diode is connected to the emitter of the first triode, and a cathode of the third diode is connected to the other end of the fourth capacitor and one end of the speaker.
6. The wireless-based basketball-type smart speaker control system as recited in claim 5, wherein the third diode is of type S-701T.
7. The wireless-based basketball-type smart speaker control system as recited in any one of claims 1-6 wherein the first triode is an NPN triode.
8. The wireless-based basketball-type smart speaker control system as recited in any one of claims 1-6 wherein the second triode is an NPN triode.
9. The wireless-based basketball-type smart speaker control system as recited in any one of claims 1-6 wherein the third triode is an NPN triode.
10. The wireless-based basketball-type intelligent sound box control system according to any one of claims 1-6, wherein the fourth triode is a PNP triode.
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| CN109300348A (en) * | 2018-11-20 | 2019-02-01 | 安徽奕甲文化传媒有限责任公司 | Interactive educational system |
| CN109495811A (en) * | 2018-12-06 | 2019-03-19 | 广州荣锋电子科技有限公司 | Speaker |
| CN209357116U (en) * | 2019-02-20 | 2019-09-06 | 红原牦牛乳业有限责任公司 | A kind of convenience-for-people formula is mobile to adopt milk system |
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Application publication date: 20200124 |
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