CN100489762C - Loudspeaker box control driving method and system thereof - Google Patents
Loudspeaker box control driving method and system thereof Download PDFInfo
- Publication number
- CN100489762C CN100489762C CNB2007100763065A CN200710076306A CN100489762C CN 100489762 C CN100489762 C CN 100489762C CN B2007100763065 A CNB2007100763065 A CN B2007100763065A CN 200710076306 A CN200710076306 A CN 200710076306A CN 100489762 C CN100489762 C CN 100489762C
- Authority
- CN
- China
- Prior art keywords
- control
- audio amplifier
- computer
- driven system
- command
- 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
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004891 communication Methods 0.000 claims abstract description 26
- 230000003321 amplification Effects 0.000 claims abstract description 15
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 15
- 230000005236 sound signal Effects 0.000 claims description 20
- 230000001276 controlling effect Effects 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 238000004321 preservation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
Landscapes
- Amplifiers (AREA)
Abstract
The invention provides a speaker control driving method and a system thereof, which is used for controlling the speaker working through a computer. The invention comprises: a voice band line, and a communication line; a front-end control connected with the computer through the voice band line; a back-end amplifier connected with the signal output end of the front-end control through the communication line; a control unit containing a chip microprocessor used for processing a relevant control signal, the control unit is connected with the computer through the communication line and establishes the communication link with a speaker control software arranged on the computer, using for commanding and controlling the coordination of front-end control and back-end amplification; and a power source module. The invention has the advantages in that: the system is convenient for a user to operate the speaker and improves the speaker service life, and controls the speaker to complete automatic power-up and automatic shutdown, thereby thoroughly solving the problems of strong noise on the speaker caused by computer power-up and shutdown.
Description
Technical field
The present invention relates to a kind of audio amplifier control method and system thereof, relate in particular to a kind of by computer to audio amplifier controlling and driving method and system thereof.
Background technology
At present, the audio amplifier on the market all adopts traditional control method, promptly realizes start, shutdown to audio amplifier by the various buttons on the audio amplifier equipment, knob, and volume, tone, sound effect control are regulated, and need the direct hands-on of user, and be very inconvenient; These audio amplifier equipment will cause its loose contact owing to its button, the easy wear and aging of knob, thereby cause that control is malfunctioning, produce problems such as noise.The serviceable life of this meeting grievous injury audio amplifier.As user the time,, also can cause audio amplifier to produce strong impulsive noise simultaneously if do not close audio amplifier earlier at the switch computer.And, also have in the time of the audio amplifier standby and will expend a large amount of electric power, if forgetting, the user closes audio amplifier after closing computer, will cause energy dissipation.
Summary of the invention
Technical matters to be solved by this invention is: it is inconvenient to overcome the existing audio amplifier operation that is connected with computer, and mechanical part is lacked serviceable life, and causes that impulsive noise and user forget that easily closing audio amplifier causes problems such as energy dissipation when having the switch computer.
In order to solve the problems of the technologies described above, the invention provides a kind of by computer to audio amplifier controlling and driving method and control system thereof.Audio amplifier controlling and driving method, by connecting computer and audio amplifier control-driven system communication line, described computer is controlled the audio amplifier control-driven system, and control procedure comprises the steps:
Enter control interface in described computer sound box Control Software;
Control interface input by described audio amplifier Control Software is at the operational order of Be Controlled audio amplifier;
This operational order arrives the audio amplifier control-driven system through described communication line;
The audio amplifier control-driven system is exported corresponding power current drives audio amplifier pronunciation according to the operational order that receives.
Described audio amplifier control-driven system writes down the configuration parameter of audio amplifier control-driven system and returns corresponding acknowledgement frame by described communication line to described computer after according to the control command word that operational order comprised audio amplifier being carried out corresponding order.
The order that the user that described control command word table shows selects comprises power-on command, shutdown command, regulating command and the order of shaking hands;
Described control command word and corresponding acknowledgement frame comprise frame head, control command, Argument List and the postamble that is arranged in order; Described frame head is special-purpose special character, is used to show the beginning of control frame; Described postamble is special-purpose special character in addition, is used to show the end of control frame; Described control command is used to represent user-selected order; Described Argument List comprises the parameter of the quantitative value of the required adjusting of corresponding different command.
By above method, the user does not need just can directly control on computers by mechanically actuated the switch and the parameters such as volume and audio of audio amplifier.To avoid mechanical audio amplifier equipment like this because its button, the easy wear and aging of knob, and can cause loose contact very soon and cause that control is malfunctioning, produce problems such as noise.
Corresponding different user order, described audio amplifier controlling and driving drive system has following operation:
When the described control command word table that receives when described audio amplifier controlling and driving drive system is shown and shakes hands order, the loopback acknowledgement frame of shaking hands then;
When the described control command word table of described audio amplifier control-driven system reception is shown power-on command or shutdown command, then directly carry out the corresponding function operation, send corresponding acknowledgement frame to described computer then;
When the described control command word table of described audio amplifier control-driven system reception is shown volume regulating command, high pitch regulating command or bass regulating command, then according to the value of user command and Argument List, adjust and upgrade the corresponding configuration data of audio amplifier control-driven system, send corresponding acknowledgement frame to described computer then.
As a further improvement on the present invention, this audio amplifier controlling and driving method is further comprising the steps of:
In the time of described booting computer, according to the configuration data that described computer has been preserved, check whether described audio amplifier control-driven system is open state, if be closed condition, then send power-on command, and enter the control interface to described audio amplifier control-driven system; If be start, then directly enter the control interface;
In the time of described shut down of computer, check whether described audio amplifier control-driven system is open state, if be open state, then send shutdown command to described audio amplifier control-driven system, and preserve configuration data, withdraw from the control interface then; If be closed condition, then directly preserve configuration data, withdraw from the control interface then.
By this step, the present invention has realized in the switch computer, the automatic switch audio amplifier.So both can guarantee the normal use of user, and can guarantee that also the user also closes audio amplifier automatically when closing computer audio amplifier.
The present invention also provides a kind of audio amplifier control-driven system, is used for the computer control by storing the audio amplifier Control Software and drives connected audio amplifier, comprising: connect the voice band line that computer is used for received audio signal; Connect the communication line that computer is used to receive control signal; Prime control by voice band line is connected with described computer is used to receive from the sound signal of described computer and to this sound signal and controls; Back grade that is connected with the signal output part of described prime control is amplified, and is used to receive the sound signal of described prime control output, and this sound signal is carried out power amplification, connects and the driving audio amplifier; The control module that includes the single-chip microcomputer that is used to handle corresponding control signal, this control module is connected with described computer by communication line and establishes a communications link with the audio amplifier Control Software that is installed in described computer, is used for described prime control of commander's control and back level and amplifies co-ordination; And power module.
Described communication line is UART circuit or USB circuit.
By above technical scheme, the user can realize the control of computer to audio amplifier by described communication line, no longer needs mechanical parts such as knob to regulate audio amplifier, has overcome the shortcoming of mechanical part, has eliminated the noise that causes as loose contacts such as knobs.
As a concrete scheme of the present invention, described control module also comprises, interface circuit and the pilot lamp that is used for display working condition; Described single-chip microcomputer is connected with power module with described prime control, back level amplification respectively, and described single-chip microcomputer is connected with described computer is two-way by interface circuit.
The volume tone Balance Control that described prime control comprises the audio frequency input and is used for the sound signal of input is controlled; The input end of described audio frequency input connects described computer through described voice band line, and the signal input part of described volume tone Balance Control is connected described audio frequency input respectively with output terminal and the back level is amplified.
The level amplification of described back comprises: be used to receive the sound signal of described prime control input and amplify, to connect and to drive the power amplification of audio amplifier; Be used to control described back level and amplify the readiness control circuit of work, this readiness control circuit is connected with the single-chip microcomputer of described control module.
Compare with prior art, the invention has the advantages that, overcome the existing audio amplifier operation inconvenience that is connected with computer, mechanical part short shortcoming in serviceable life, cause impulsive noise when having eliminated the switch computer, and solved the user and forget that easily closing audio amplifier causes problems such as energy dissipation.
Description of drawings
Fig. 1 is the connection diagram of audio amplifier control-driven system of the present invention;
Fig. 2 is the structural representation of audio amplifier control-driven system of the present invention;
Fig. 3 is audio amplifier control-driven system of the present invention and compunlcation synoptic diagram;
Fig. 4 is the schematic flow sheet of Auto Power On process of the present invention;
Fig. 5 is the schematic flow sheet of the automatic shutdown process of the present invention;
Fig. 6 is the schematic flow sheet of audio amplifier controlling and driving method of the present invention;
Fig. 7 is the workflow diagram of audio amplifier control-driven system of the present invention;
Fig. 8 is the working interface of audio amplifier Control Software of the present invention;
Fig. 9 is the circuit diagram of control module of the present invention;
Figure 10 is the circuit diagram of prime control of the present invention;
The circuit diagram that Figure 11 amplifies for level behind the present invention;
Figure 12 is the circuit diagram of power supply of the present invention.
Embodiment
As shown in Figure 1, audio amplifier comprises main sound box 30, left surround speaker 31 or right surround speaker 32.This audio amplifier drives the audio amplifier playback by audio amplifier control-driven system 20 output power electric currents.
Except voice band line 50 connects, also increased by one road communication line 40 and interconnected between computer 10 and the described audio amplifier control-driven system 20.Described communication line 40 can be UART circuit or USB circuit.
As shown in Figure 2, audio amplifier control-driven system 20 comprises: voice band line 50, communication line 40, prime control 203, back level amplification 204, control module 201 and power module 202.
Wherein, described control module 201 comprises, is used to control the single-chip microcomputer 2011 of described prime control 203, back level amplification 204 and power module 202; By described communication line 40 and described computer 10 interconnective interface circuits 2012; And the pilot lamp 2013 that is used to show whole audio amplifier control system duty.Described single-chip microcomputer 2011 is the control core of audio amplifier control system, running control software on it, to volume, high pitch, different physical quantity configuration data such as bass is adjusted, so just can carry out control operation, comprise volume control, tone control, sound effect control, quiet control, Opportunity awaiting control for linear and power supply control each functional module.In a single day Control Software receives the order that described computer 10 sends over, and promptly realizes concrete control operation according to order.
Described prime control 203 receives the sound signal of described computer 10 inputs and carries out control and treatment according to the instruction of described control module by voice band line 50.Described prime control 203 comprises: is used for the sound signal of input is amplified, and amplifies the 203 volume tone Balance Control of exporting 2032 to described back level, and the audio frequency input 2031 that connects described voice band line 50.
Described back level is amplified 204 and is received the sound signal that described prime is controlled 203 outputs, and this sound signal is carried out power amplification, is used to drive audio amplifier.Described back level is amplified 204 and is comprised: be used to receive the sound signal of described prime control 203 inputs and amplify, to drive the power amplification 2041 of audio amplifier; And, be used to control described back level and amplify the readiness control circuit 2042 of 204 work.
As shown in Figure 3, between described computer 10 and the audio amplifier control-driven system 20 by described computer 10 transmitting control commands words and receive the mode that described audio amplifier control-driven system 20 replys and communicate.The user operates the audio amplifier Control Software on the described computer 10, the form of concrete operations order by the control command word is transferred to described audio amplifier control-driven system 20, after described audio amplifier control-driven system 20 receives the control command word, carry out concrete control operation, send corresponding acknowledgement frame to computer then.
The structure of control command word and acknowledgement frame is frame head, control command, selectable Argument List and the postamble that is arranged in order.Wherein, described frame head is special-purpose special character, is used to show the beginning of control frame; Described postamble is special-purpose special character also, is used to show the end of control frame; Described control command is used to represent at user option order; Described Argument List comprises the quantitative value of the required adjusting of corresponding different command, is the representative volume, high pitch, the configuration data of the physical quantity that bass etc. are different.
The control command word is unit with the octet, and wherein frame head and postamble can not occur in control command and parameter.Can the regulation frame head be 0 X 80 for example, postamble be 0 X FE, and their most significant digit is 1, and the most significant digit of control command and parameter is 0.Described like this control module 201 is by catching frame head, and postamble can be discerned and receive a complete control command word.Control command can be represented power-on command, shutdown command, volume regulating command, high pitch regulating command, bass regulating command and the order etc. of shaking hands respectively.
Acknowledgement frame is the response message that audio amplifier sends to computer, and its structure is consistent with corresponding control command words.
Below with the explanation that makes an explanation of the one group of control command word of implementing difference in functionality and parameter-definition:
The frame head of power-on command frame is 0 X 80, and control command is 0 X 02, and the parameter 1 of Argument List is represented volume, and parameter 2 is represented high pitch, and parameter 3 is represented bass, and parameter 4 is represented master volume, and parameter 5 is represented the 3D audio, and parameter 6 representatives are quiet, and postamble is 0 X FE.
3D audio and quiet for switch parameter has only 0 and 1 two states, 0 expression is closed, and 1 expression is opened.The value of other 4 parameters is 0 to 100, represents with number percent, and the audio amplifier controlling and driving is set at configuration data with this number percent, and is converted to the actual physical parameter values.Wherein master volume is used for regulating separately the main sound box volume.In actual the use, can increase relevant parameters according to the function situation that realizes.
The frame head of power-on command acknowledgement frame is 0 X 80, and acknowledgement command is 0 X 02, and postamble is 0 X FE.After audio amplifier received the power-on command frame of computer transmission, with this acknowledgement frame of loopback, acknowledgement frame can not comprise any parameter.
The frame head of shutdown command word is 0 X 80, and control command is 0 X 03, and postamble is 0 X FE.After described audio amplifier control-driven system 20 received this command word, promptly the powered-down module 202, are in holding state.
The frame head of shutdown command acknowledgement frame is 0 X 80, and control command is 0 X 03, and postamble is 0 X FE.After described audio amplifier control-driven system 20 received the shutdown command word, with this acknowledgement frame of loopback, this acknowledgement frame did not comprise any parameter.
The frame head of regulating command frame is 0 X 80, and control command is 0 X 04, subsidiary 6 parameters, and parameter 1 is represented volume, and parameter 2 is represented high pitch, and parameter 3 is represented bass, and parameter 4 is represented master volume, and parameter 5 is represented the 3D audio, and parameter 6 representatives are quiet, and postamble is 0 X FE.Regulating command word and power-on command are in full accord.After described audio amplifier control-driven system 20 receives the regulating command word, each parameter and the configuration data that oneself writes down are compared, the parameter that has changed upgraded being recorded as configuration data, unchanged parameter ignorance is handled, regulate driving audio amplifier then according to the configuration data after upgrading.
Also can increase relevant parameters according to the function situation that audio amplifier is realized.
The frame head of the acknowledgement frame of regulating command is 0 X 80, and acknowledgement command is 0 X 04, and postamble is 0 X FE.This acknowledgement frame does not comprise any parameter.
The frame head of the command word of shaking hands is 0 X 80, and control command is 0 X 00, and postamble is 0 X FE, is not with any parameter.The audio amplifier Control Software of described computer 10 periodically, such as sending this command word every 1 second, and by judging whether that receiving acknowledgement frame determines whether the communication of described audio amplifier control-driven system 20 normal.The frame head of acknowledgement frame of order of shaking hands is 0 X 80, and acknowledgement command is 0 X 00, and postamble is 0 X FE, does not comprise any parameter.
As shown in Figure 4, behind described computer 10 starting up, the audio amplifier Control Software will start operation automatically, and it at first reads the configuration parameter that described computer 10 is preserved, and determine the on-off state of described audio amplifier control-driven system 20.If be open state, then send power-on command to described audio amplifier control-driven system 20, enter control interface then to described audio amplifier control-driven system 20.If off-mode then directly enters the control interface to described audio amplifier control-driven system 20.
As shown in Figure 5, when described computer 10 shut down, the audio amplifier Control Software was judged the current state of described audio amplifier control-driven system 20.If be in open state, then described computer 10 sends shutdown command to described audio amplifier control-driven system 20, preserves current configuration parameter, withdraws from Control Software.If be in off-mode, then directly preserve current configuration parameter, withdraw from Control Software.
As shown in Figure 6, the user operates described audio amplifier control-driven system 20 on the control interface of the audio amplifier Control Software of described computer 10.Described computer 10 sends corresponding order according to user's order to described audio amplifier control-driven system 20, and notes the configuration parameter of described audio amplifier control-driven system 20.
As shown in Figure 7, described audio amplifier control-driven system 20 carries out the corresponding work flow process according to user instruction.
Described audio amplifier control-driven system 20 is judged the order that described computer 10 sends, and
When the described control command word table that receives when described audio amplifier controlling and driving drive system 20 is shown and shakes hands order, the loopback acknowledgement frame of shaking hands then;
When the described control command word table of described audio amplifier control-driven system 20 receptions is shown power-on command or shutdown command, then directly carry out the corresponding function operation, send corresponding acknowledgement frame to described computer 10 then;
When the described control command that described active audio amplifier control-driven system 20 receives is expressed as regulating command, then according to the value of attaching each parameter of Argument List, adjust and upgrade active audio amplifier control-driven system 20 corresponding configuration datas, and, send corresponding acknowledgement frame to described computer 10 then according to described configuration data configuration control active audio amplifier.
As shown in Figure 8, be the control interface of an audio amplifier Control Software.At user option concrete function is embodied on the control at this interface, comprises shift knob, mute button, main sound box volume control slide block, high pitch control slide block, bass control slide block, contents such as Balance Control slide block and manufacturer's icon.The user realizes the control operation to described audio amplifier control-driven system 20 by these buttons of mouse action and slide block.
As shown in Figure 9, described single-chip microcomputer 2011 is selected the AT89C2051 of atmel corp for use, with the communication line 40 employing UART circuits of described computer 10.By triode N1, P1, resistance R 2, R4, R5, R7, R9 constitutes interface circuit, has realized the conversion of RS232 level to Transistor-Transistor Logic level, and J1 connects the UART mouth of described computer 10, thereby constitutes communication line.L1 is described pilot lamp 2013, is directly driven by described single-chip microcomputer 2011, is used to refer to the duty of audio amplifier; The P1.7 of described single-chip microcomputer 2011 and P1.6 are used for controlling described preposition control 203, realize controls such as volume.P1.5 is used for controlling described back level and amplifies 204, to realize idle function.AT89C2051 is by software control, and the most of the time is in dormant state, and working current is about 5 milliamperes, and power consumption is very low.
As shown in figure 10, described prime control 203 adopts TDA7313 volume control chip to constitute, and this chip possesses volume, high pitch, the bass control function is selected 2011 P1.7 by 27,28 pins and described single-chip microcomputer, and P1.6 connects, directly control volume, high pitch, bass etc. by described single-chip microcomputer 2011.J1 directly is connected with the stereo audio output of described computer 10, is coupled to 15 and 11 input pins of TDA7313 by electric capacity E5 and E8; Divide 4 the tunnel to export by the sound signal after the TDA7313 processing, respectively by pin 22,23,24 and 25 export through capacitor C 1, C2, and C3 gives grade amplification 204 of described back after the C4 coupling.The working current of TDA7313 is that power consumption is the end very about 10 milliamperes.
As shown in figure 11, described back level is amplified 204 and is adopted the integrated amplification chip of TDA7375 audio power to constitute, and this chip possesses 4 tunnel separate analogue audio power enlarging functions; Input pin 4 and 5 is by coupling capacitance C2, C3 respectively with the L of prime control, R exports connection, described prime control 203 L+R_1 that send here and L+R_2 signal are through capacitor C 4, after the C5 coupling,, deliver to the input pin 11 and 12 of TDA7375 after the R7 stack by resistance R 6.Output pin 1 and 2 passes through electric capacity E1 respectively, E2 coupling rear drive S3 and S4 audio amplifier, left surround speaker and right surround speaker; Output pin 14 and 15 directly drives audio amplifier S2, i.e. main sound box.TDA7375 power consumption in working order is bigger, can export the power more than 40 watts altogether, is the main power consumption part of this audio amplifier embodiment.Resistance R 1 and capacitor C 1 constitute the readiness control circuit of TDA7375, directly link to each other with described single-chip microcomputer 2011, directly controlled by described single-chip microcomputer 2011, when audio amplifier is in the start duty, described single-chip microcomputer 2011 output low levels, control TDA7375 work, when audio amplifier was in off-mode, described single-chip microcomputer 2011 control TDA7375 were in the turning off standby state; TDA7375 is the microampere rank at the holding state working current, and power consumption is very low.
As shown in figure 12, be the circuit diagram of described electric module 202.From J1 input 10V low-voltage AC, behind rectifier bridge B1 and storage capacitor E4 rectifying and voltage-stabilizing, export the 14V DC voltage, be used as the operating voltage of described back level amplification 204.Resistance R 2 and stabilivolt Z1, storage capacitor E5 divides extrusion 9V voltage with the 14V input voltage, as the operating voltage of described prime control 203; The 14V DC voltage by three-terminal voltage-stabilizing pipe P1 after output 5V voltage, as the operating voltage of described single-chip microcomputer 2011.
Claims (9)
1, a kind of method of controlling and drive connected audio amplifier by computer, it is characterized in that: based on audio amplifier control-driven system (20), this audio amplifier control-driven system (20) is by communication line (40) and two-way connection of computer (10), and described computer (10) is equipped with the audio amplifier Control Software; Control procedure to audio amplifier comprises the steps:
I. enter the control interface of described computer (10) audio amplifier Control Software;
Ii. the input of the control interface by described audio amplifier Control Software is at the operational order of Be Controlled audio amplifier;
Iii. this operational order arrives described audio amplifier control-driven system (20) through described communication line (40);
Iv. audio amplifier control-driven system (20) is exported corresponding power current drives audio amplifier pronunciation according to the operational order that receives;
V. after described audio amplifier control-driven system (20) was carried out corresponding order according to the control command word that operational order comprised to audio amplifier, the configuration parameter of record audio amplifier control-driven system (20) also returned corresponding acknowledgement frame by described communication line (40) to described computer (10).
2, audio amplifier controlling and driving method according to claim 1 is characterized in that, the order that the user that described control command word table shows selects comprises power-on command, shutdown command, regulating command and the order of shaking hands;
Described control command word and corresponding acknowledgement frame comprise frame head, control command, Argument List and the postamble that is arranged in order; Described frame head is special-purpose special character, is used to show the beginning of control frame; Described postamble is special-purpose special character in addition, is used to show the end of control word; Described control command is used to represent user-selected order.
3, audio amplifier controlling and driving method according to claim 2 is characterized in that,
When the described control command word table that receives when audio amplifier controlling and driving drive system (20) described in the described iii step is shown and shakes hands order, the loopback acknowledgement frame of shaking hands then;
When the described control command word table of the reception of audio amplifier control-driven system (20) described in the described iii step is shown power-on command or shutdown command, then directly carry out the corresponding function operation, send corresponding acknowledgement frame to described computer (10) then;
When the described control command word table of the reception of audio amplifier control-driven system (20) described in the described iii step is shown regulating command, then according to the value of user command and Argument List, adjust and upgrade the corresponding configuration data of audio amplifier control-driven system (20), and, send corresponding acknowledgement frame to described computer (10) then according to described configuration data driving audio amplifier.
4, audio amplifier controlling and driving method according to claim 3 is characterized in that this method also comprises:
When described computer (10) is started shooting, according to the configuration data that described computer (10) has been preserved, check whether described audio amplifier control-driven system (20) is open mode, if be closed condition, then send power-on command to described audio amplifier control-driven system (20), and enter the control interface; If be start, then directly enter the control interface;
When described computer (10) shuts down, check whether described audio amplifier control-driven system (20) is open mode,, then send shutdown command to described audio amplifier control-driven system (20) if be open state, and the preservation configuration data, withdraw from the control interface then; If be off-mode, then directly preserve configuration data, withdraw from the control interface then.
5, a kind of audio amplifier control-driven system (20) is used for controlling and drive connected audio amplifier by the computer (10) that stores the audio amplifier Control Software, it is characterized in that comprising:
Connect the voice band line (50) that computer (10) is used for received audio signal;
Connect the communication line (40) that computer (10) is used to receive control signal;
By the prime control (203) that voice band line (50) is connected with described computer (10), be used for receiving and control from the sound signal of described computer (10) and to this sound signal;
Back grade that is connected with the signal output part of described prime control (203) is amplified (204), is used to receive the sound signal of described prime control (203) output, and this sound signal is carried out power amplification, connects and the driving audio amplifier;
The control module (201) that includes the single-chip microcomputer (2011) that is used to handle corresponding control signal, this control module (201) is connected with described computer (10) by communication line (40) and establishes a communications link with the audio amplifier Control Software that is installed in described computer (10), is used for commanding the described prime control of control (203) and back level amplification (204) co-ordination;
And power module (202).
6, audio amplifier control-driven system according to claim 5 (20) is characterized in that, described communication line (40) is UART circuit or USB circuit.
According to claim 5 or 6 described audio amplifier control-driven systems (20), it is characterized in that 7, described control module (201) also comprises, interface circuit (2012) and be used for the pilot lamp (2013) of display working condition;
Described single-chip microcomputer (2011) amplifies (204) with described prime control (203), back level respectively and is connected with power module (202), and described single-chip microcomputer (2011) is by interface circuit (2012) and two-way connection of described computer (10).
8, according to claim 5 or 6 described audio amplifier control-driven systems (20), it is characterized in that the volume tone Balance Control (2032) that described prime control (203) comprises audio frequency input (2031) and is used for the sound signal of input is controlled;
The input end of described audio frequency input (2031) connects described computer (10) through described voice band line (50), and the signal input part of described volume tone Balance Control (2032) is connected described audio frequency input (2031) respectively with output terminal and the back level is amplified (204).
According to claim 5 or 6 described audio amplifier control-driven systems (20), it is characterized in that 9, described back level is amplified (204) and being comprised:
Be used to receive the sound signal of described prime control (203) input and amplify, to connect and to drive the power amplification (2041) of audio amplifier;
Be used to control described back level and amplify the readiness control circuit (2042) of (204) work, this readiness control circuit (2042) is connected with the single-chip microcomputer (2011) of described control module (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100763065A CN100489762C (en) | 2007-06-29 | 2007-06-29 | Loudspeaker box control driving method and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100763065A CN100489762C (en) | 2007-06-29 | 2007-06-29 | Loudspeaker box control driving method and system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101158890A CN101158890A (en) | 2008-04-09 |
| CN100489762C true CN100489762C (en) | 2009-05-20 |
Family
ID=39307002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100763065A Active CN100489762C (en) | 2007-06-29 | 2007-06-29 | Loudspeaker box control driving method and system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100489762C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103888867A (en) * | 2014-03-07 | 2014-06-25 | 深圳市领芯者科技有限公司 | Loudspeaker box and system and method for controlling loudspeaker box |
| CN104678847A (en) * | 2015-01-28 | 2015-06-03 | 四川君逸数码科技发展有限公司 | Playing device and method based on single wire control |
| CN106775553A (en) * | 2016-11-15 | 2017-05-31 | 深圳Tcl新技术有限公司 | Sound-volume control system and method for controlling volume |
-
2007
- 2007-06-29 CN CNB2007100763065A patent/CN100489762C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101158890A (en) | 2008-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6348744B1 (en) | Integrated power management module | |
| CN104469620A (en) | Acoustical product with audio output power adjustable within large range | |
| CN204190934U (en) | The voicefrequency circuit that a kind of power output is adjustable on a large scale and acoustic product | |
| CN100489762C (en) | Loudspeaker box control driving method and system thereof | |
| CN205793254U (en) | A kind of broadcast volume adaptive control system | |
| CN101710925A (en) | Device and method for lowering power consumption of complete machine | |
| CN101822075A (en) | A kind of novel solar energy wireless sound system | |
| CN213637159U (en) | Sound box power supply system and sound box | |
| CN201230537Y (en) | Wireless master-slave mode voice animal-driving device | |
| CN206323545U (en) | A kind of display device with Baffle Box of Bluetooth | |
| CN212259318U (en) | Bluetooth desktop loudspeaker box with wireless microphone | |
| CN202749862U (en) | Charging device | |
| CN204508786U (en) | The assistant voice system of fuel charger | |
| CN202841486U (en) | Automatic switch device based on digital audio signals and used for audio device | |
| CN102194319A (en) | Circuit of blind people prompter | |
| CN218734917U (en) | High-power sound box based on hybrid power supply | |
| CN208540047U (en) | A kind of voice-based central control module and conference system | |
| CN201499241U (en) | Powering-on music circuit and television comprising thereof | |
| CN112581932A (en) | Wired and wireless sound mixing system based on DSP | |
| CN101719964A (en) | Mobile terminal and Power management method thereof | |
| CN110875957A (en) | Low-power-consumption curtain motor control system, method and device and storage medium | |
| CN204761070U (en) | Battery power display device | |
| CN212726950U (en) | Power amplification circuit and device of voice chip and elevator | |
| CN101764653A (en) | Constant-pressure broadcasting system by using wireless signals to achieve addressable broadcast | |
| CN114967560B (en) | Communication interface circuit with low power consumption control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUIZHOU ULTRASONIC SOUND CO., LTD. Free format text: FORMER OWNER: ZHANG XIAOHUI Effective date: 20101102 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518057 7D, BUILDING 1, KEYUANXUELI, SCIENCE + TECHNOLOGY PARK, NANSHAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE TO: 516223 DIFENNI INDUSTRY PARK, XINLIAN VILLAGE, XINXU TOWN, HUIYANG DISTRICT, HUIZHOU CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101102 Address after: 516223, Huizhou, Guangdong province Huiyang District New Town, new village Di Di industrial park Patentee after: Huizhou Ultrasonic Audio Co., Ltd. Address before: 518057 Guangdong city of Shenzhen province Nanshan District science and Technology Park Keyuan in 1 7D Patentee before: Zhang Xiaohui |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 516223 Difani Industrial Park, Xinlian Village, Xinwei Town, Huiyang District, Huizhou City, Guangdong Province Patentee after: Huizhou Difenni Acoustics Technology Co., Ltd. Address before: 516223 Difani Industrial Park, Xinlian Village, Xinwei Town, Huiyang District, Huizhou City, Guangdong Province Patentee before: Huizhou Ultrasonic Audio Co., Ltd. |