CN103974180A - Power amplifier unit deploying method of power amplifier matrix - Google Patents
Power amplifier unit deploying method of power amplifier matrix Download PDFInfo
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- CN103974180A CN103974180A CN201410166109.2A CN201410166109A CN103974180A CN 103974180 A CN103974180 A CN 103974180A CN 201410166109 A CN201410166109 A CN 201410166109A CN 103974180 A CN103974180 A CN 103974180A
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Abstract
The invention discloses a power amplifier unit deploying method of a power amplifier matrix. The method comprises the steps that A, work state parameters of power amplifier units are monitored by means of an MCU control module; B, an audio channel of a power amplifier matrix module is regulated by the MCU control module through a program instruction to point to a spare power amplifier unit, a power amplifier output matrix module is controlled to output audio signals to an appointed channel, and therefore the power amplifier matrix is deployed concertedly. By the adoption of the power amplifier unit deploying method of the power amplifier matrix, by monitoring the work states of the power amplifier units of the power amplifier matrix in real time, the functions of self-detection and self-adaption of a system are improved, the system can automatic break one certain power amplifier unit and call an unoccupied power amplifier unit or a power amplifier unit with a lower user level when the certain power amplifier unit has faults; stability, reliability and maintainability of the power amplifier matrix system are enhanced. The power amplifier unit deploying method of the power amplifier matrix can be widely applied to the field of power amplifiers.
Description
Technical field
The present invention relates to audio frequency power amplifier field, especially a kind of power amplifier unit concocting method of power amplifier battle array.
Background technology
Power amplifier owing to bearing power amplification task, needs high voltage, high current drives work in sound system, is the weak link of sound system.User's sound system may be used many power amplifiers simultaneously, traditional situation adopts many main standby modes to ensure the reliability of power amplifier conventionally, when main power amplifier fault, enable power amplifier guarantee user's for subsequent use sound system normally works by switching, and power amplifier needs to interrupt broadcasting in Renewal process, after unique power amplifier for subsequent use is enabled, if while there is again other main power amplifier or power amplifier fault fault for subsequent use, can be for replacing without other power amplifier.
At the engineering field that amplifies in many important places such as subway, airport, gymnasium etc., all need sound system continuous firing incessantly, sound system degree of reliability is had higher requirement, and traditional power amplifier mode of operation has been difficult to meet this kind of demand.
Summary of the invention
In order to solve the problems of the technologies described above, the object of the invention is: provide the one can autodiagnosis fault type, and automatically produce the power amplifier unit concocting method of a kind of power amplifier battle array of corresponding allotment scheme according to diagnostic result.
The technical solution adopted in the present invention is: a kind of power amplifier unit concocting method of power amplifier battle array, comprises the following steps:
A, utilize MCU control module to monitor the working status parameter of each power amplifier unit in n power amplifier unit;
B, according to the monitoring result in above-mentioned steps, MCU control module is pointed to power amplifier unit for subsequent use by program command by the voice-grade channel adjustment of power amplifier input matrix module; MCU control module exports audio signal in the passage of appointment by program command control power amplifier output matrix module, thereby completes the allotment of power amplifier battle array harmoniously.
Further, described step B comprises following sub-step:
B1, MCU control module automatically record each power amplifier unit and add up service time, and automatic decision calls shorter power amplifier unit accumulative total service time, to make the life-span of power amplifier unit be tending towards approaching, extends the whole power amplification system mean free error time;
Further, basic identical service time for ensureing power amplifier unit accumulative total, the every broadcasting of same voice subregion once, is called once other power amplifier unit.
B2, MCU control module judge in n power amplifier unit whether have a certain power amplifier unit to break down according to the result in above-mentioned steps;
If B3 breaks down, MCU control module, according to fault type control power amplifier input matrix module, a n power amplifier unit and power amplifier output matrix module, completes the switching with the power amplifier unit breaking down to the power amplifier unit free time or that priority is lower;
If B4 occurs temperature and exceedes the threshold value of setting, utilize the switching of the power amplifier unit that program gap Automatically invoked free time or priority are lower and the power amplifier unit breaking down.
Further, described step B also comprises following sub-step:
B5, MCU control module complete after the switching of the power amplifier unit to breaking down, and automatically cut off the energy supply control module of the power amplifier unit breaking down.
Further, whether described working status parameter includes in program gap state.
Further, described working status parameter includes the accumulative total service time of power amplifier unit.
Further, described working status parameter includes the real time temperature of power amplifier unit.
Further, described working status parameter includes the hot drawing action parameter of power amplifier unit.
Further, described working status parameter includes the slotting action parameter of heat of power amplifier unit.
The invention has the beneficial effects as follows: the power amplifier concocting method that adopts above-mentioned power amplifier battle array, realize the Real-Time Monitoring to each power amplifier unit operating state in power amplifier battle array, improve power amplification system automatic fault selftesting, adaptation function, power amplification system is in the time that single or several power amplifier units break down, system can be cut off this power amplifier unit automatically, calls the power amplifier unit that free time or user class are lower; Stability and the maintenanceability of power amplification system are improved.
Brief description of the drawings
Fig. 1 is the power amplifier unit concocting method schematic diagram of a kind of power amplifier battle array of the present invention;
Fig. 2 is power amplifier unit of the present invention and MCU control module control graph of a relation;
Fig. 3 is MCU control module specific works flow process figure of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
With reference to Fig. 1, the first specific embodiment of the present invention, a kind of system of the power amplifier concocting method of applying power amplifier battle array of the present invention, include power amplifier input matrix module, n power amplifier unit, power amplifier output matrix module, MCU control module and parameter control module, the first output of described MCU control module is connected to the control end of power amplifier input matrix module, the second output of described MCU control module is connected to the control end of power amplifier output matrix module, described parameter control module is connected to n power amplifier unit by MCU control module, the output of described power amplifier input matrix module is connected to the input of n power amplifier unit, the output of a described n power amplifier unit is connected to the input of power amplifier output matrix module.
Power amplifier input matrix module is made up of program control analog switch matrix circuit on concrete enforcement, mainly accepts the input of user's multiple source audio, under the control of MCU control module program command, at any time source of sound is inputed to the power amplifier unit of appointment.
N power amplifier unit is a kind of important component part of intelligent power output amplification system, it is made up of several power amplifier units, under the control of MCU control module program command, select a power amplifier unit to mate amplification with the single input audio-source that MCU control module program command distributes, and export amplifying signal to specify in the power amplifier output matrix module of MCU control module program command distribution output port.
Power amplifier output matrix module is made up of the program control relay matrix of multichannel on concrete enforcement, under the control of MCU control module program command, the audio signal of having amplified is exported to the output of appointment, accesses playback load for user.
MCU control module is the core component of intelligent power output amplification system, mainly the power amplifier work state information of power amplifier unit subordinate detection module collection to be analyzed to judgement process, as overcurrent, short circuit, DC shift, accumulative total service time, temperature, hot drawing, heat are inserted etc., and call corresponding program and produce control command, respectively power amplifier input matrix module, a n power amplifier unit, power amplifier output matrix module are controlled, and exported relevant information to parameter control module for showing.
Parameter control module can be used for supporting MCU control module and man-machine display operation dialogue, shows through the power amplifier battle array work state information of MCU control module processing, and for user sets priority level, open and close user, temperature threshold is set, and work duration is set.
Audio signal channel part: power amplifier input matrix module, a n power amplifier unit and power amplifier output matrix module successively unidirectional connection, form audio signal amplification channel.
Based Intelligent Control allotment part: power amplifier input matrix module and power amplifier output matrix module are all connected by data wire is unidirectional with MCU control module, and n power amplifier unit is connected by data wire is two-way with MCU control module; MCU control module is connected by data wire is two-way with parameter control module.Above-mentioned five partial function modules interconnect the intelligent power output amplification control concocting method that can realize taking MCU control module as core.
With reference to Fig. 2, be further used as preferred embodiment, in a described n power amplifier unit, in any one power amplifier unit, include power amplifier module, over-current detection module, DC shift detection module, timing module, temperature detecting module, hot drawing detection module, heat is inserted detection module, program gap detection module and energy supply control module, the output of described power amplifier input matrix module is connected to the input of n power amplifier unit, the output of a described n power amplifier unit is connected to the input of power amplifier output matrix module, described over-current detection module, DC shift detection module, timing module, temperature detecting module, hot drawing detection module, heat is inserted detection module, program gap detection module and energy supply control module are all connected to MCU control module.
In a said n power amplifier unit, single power amplifier unit comprises multiple detection modules for detection of the work state information producing in the power amplifier unit course of work, and pass to MCU control module, analyze and judge and send corresponding program command by MCU control module, control shutoff or the unlatching of energy supply control module.
A power amplifier unit concocting method for power amplifier battle array, comprises the following steps:
A, utilize MCU control module to monitor the working status parameter of each power amplifier unit in n power amplifier unit;
B, according to the monitoring result in above-mentioned steps, MCU control module is pointed to power amplifier unit for subsequent use by program command by the voice-grade channel adjustment of power amplifier input matrix module; MCU control module exports audio signal in the passage of appointment by program command control power amplifier output matrix module, thereby completes the allotment of power amplifier battle array harmoniously.
First user's multipath audio signal inputs to power amplifier input matrix module, power amplifier input matrix module is made up of program control simulant electronic switch matrix, under the instruction control of MCU control module, the power amplifier unit (specifying power amplifier unit to be specified by MCU control module) that the multipath audio signal of input is exported respectively to appointment, the allotment of each audio signal channel is subject to the control of MCU control module.
Audio signal inputs to after power amplifier unit, power amplifier unit amplifies audio signal, in the course of work, detect all modules, as over-current detection module, DC shift detection module, timing module, temperature detecting module, hot drawing detection module, heat are inserted detection module, program gap detection module starts the work state information of power amplifier unit to monitor, and information is fed back to MCU control module.
Each power amplifier unit exports the audio signal of having amplified to power amplifier output matrix module, and the output channel of each audio signal accepts the instruction control of MCU control module.
Be further used as preferred embodiment, described step B comprises following sub-step:
B1, MCU control module automatically record each power amplifier unit and add up service time, and automatic decision calls shorter power amplifier unit accumulative total service time, to make the life-span of power amplifier unit be tending towards approaching, extends the whole power amplification system mean free error time;
Further, basic identical service time for ensureing power amplifier unit accumulative total, the every broadcasting of same voice subregion once, is called once other power amplifier unit;
B2, MCU control module judge in n power amplifier unit whether have a certain power amplifier unit to break down according to the result in above-mentioned steps;
If B3 breaks down, MCU control module, according to fault type control power amplifier input matrix module, a n power amplifier unit and power amplifier output matrix module, completes the switching with the power amplifier unit breaking down to the power amplifier unit free time or that priority is lower;
If B4 occurs temperature and exceedes the threshold value of setting, utilize the switching of the power amplifier unit that program gap Automatically invoked free time or priority are lower and the power amplifier unit breaking down.
Be further used as preferred embodiment, described step B also comprises following sub-step:
B5, MCU control module complete after the switching of the power amplifier unit to breaking down, and automatically cut off the energy supply control module of the power amplifier unit breaking down.
Be further used as preferred embodiment, whether described working status parameter includes in program gap state.
Be further used as preferred embodiment, described working status parameter includes the accumulative total service time of power amplifier unit, if MCU control module finds that the accumulative total of certain power amplifier unit is long service time, utilize program gap to be switched to another free time or the lower power amplifier unit of priority, break down in order to avoid the service time of power amplifier unit is long.
Be further used as preferred embodiment, described working status parameter includes the real time temperature of power amplifier unit.If MCU control module is found the excess Temperature of certain power amplifier unit, utilize program gap to be switched to another free time or the lower power amplifier unit of priority, now can carry out trouble shooting to the power amplifier unit of excess Temperature.
Be further used as preferred embodiment, described working status parameter includes the hot drawing action parameter of power amplifier unit.
Be further used as preferred embodiment, described working status parameter includes the heat of power amplifier unit and inserts action parameter.
MCU control module is carried out Real-Time Monitoring to hot-swappable action, according to monitoring result, automatically starts the slotting program of hot drawing or heat, controls judgement or the unlatching of power amplifier unit energy supply control module, and the use state of power amplifier unit is carried out to mark.Control by hot-swappable program technic can effectively prevent transient voltage or rush of current, thereby realizes quick, the simple maintenance of power amplification system.
With reference to Fig. 3, in the inventive method, concrete MCU control module routine processes workflow can be divided into 6 steps:
Step 1: operator sets priority level by multi-user by importance by setting parameter, as important leverage user, inferior important leverage user and non-important leverage user etc. user's value is set as respectively to 1,2,3 ... n, the rest may be inferred.
Step 2: program operation first to the initial informations such as number of users, power amplifier unit number, power amplifier unit operating state collect, assignment, complete initialization.
Minimum rank user's transfer that step 3: the responsible consumer that program is 1 by priority is adjusted to power amplifier unit 1 and amplified, and the rest may be inferred is n by priority is adjusted to power amplifier unit n and is amplified.Idle power amplifier unit enters resting state, and the main audio amplifying circuit of power amplifier unit is not worked, and enters energy saver mode, the work of power amplifier unit operating state detection module, the work state information of collection power amplifier unit.
Step 4: the real-time working state information parameter that in n power amplifier unit of program cycle monitoring, each power amplifier unit detection module sends, when work state information parameter meets a certainly when pre-conditioned, program continues to carry out power amplifier unit downwards and allocates module.Pre-conditioned comprising: a power amplifier unit is opened unsuccessfully, b opens user, and c source of sound injects, d overcurrent, and e DC shift, f excess temperature, g hot drawing, h heat is inserted, and i power amplifier unit adds up service time etc.
Step 5: when meeting above-mentioned a-c item when pre-conditioned, first program finds idle power amplifier unit, if have multiple, contrast idle power amplifier unit temperature, select the idle power amplifier unit of temperature lower (in uniform temperature interval), if multiple in addition, contrast adds up service time, select the shortest idle power amplifier unit accumulative total service time, then detect program gap, when program gap occurs, control power amplifier input matrix module the audio signal channel of needs amplification is adjusted to this free time power amplifier unit; If no, find the power amplifier unit that owner priority rank is minimum, detect program gap, when program gap occurs, control power amplifier input matrix module the audio signal channel of needs amplification is adjusted to the power amplifier unit that family level of priority is minimum.
When meeting above-mentioned d-g item when pre-conditioned, first program finds idle power amplifier unit, if have multiple, contrast idle power amplifier unit temperature, select the idle power amplifier unit of temperature lower (in uniform temperature interval), if multiple in addition, contrast adds up service time, select the shortest idle power amplifier unit accumulative total service time, then detect program gap, when program gap occurs, control power amplifier input matrix module the audio signal channel of needs amplification is adjusted to this free time power amplifier unit, and send instruction disengagement failure unit power supply; If do not have, find the power amplifier unit that owner priority rank is minimum, detect program gap, when program gap occurs, control power amplifier input matrix module the audio signal channel of needs amplification is adjusted to the power amplifier unit that family level of priority is minimum, and send instruction disengagement failure unit power supply.
When meeting above-mentioned h item when pre-conditioned, carry out power amplifier unit allotment module, if there is no the user of wait, be labeled as idle power amplifier unit.
When meeting above-mentioned i item when pre-conditioned, program, to each power amplifier unit accumulative total contrast service time, is enabled accumulative total shorter idle power amplifier unit work service time.
Step 6: operator can pass through setting parameter, opens a user, or the user of state such as closes, and power amplifier unit exits wait state.
More than that better enforcement of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art can also make all equivalents or replacement under the prerequisite without prejudice to spirit of the present invention, and the distortion that these are equal to or replacement are all included in the application's claim limited range.
Claims (8)
1. a power amplifier unit concocting method for power amplifier battle array, is characterized in that: comprise the following steps:
A, utilize MCU control module to monitor the working status parameter of each power amplifier unit in n power amplifier unit;
B, according to the monitoring result in above-mentioned steps, MCU control module is pointed to power amplifier unit for subsequent use by program command by the voice-grade channel adjustment of power amplifier input matrix module; MCU control module exports audio signal in the passage of appointment by program command control power amplifier output matrix module, thereby completes the allotment of power amplifier battle array harmoniously.
2. the power amplifier unit concocting method of a kind of power amplifier battle array according to claim 1, is characterized in that: described step B comprises following sub-step:
B1, MCU control module automatically record each power amplifier unit and add up service time, and automatic decision calls shorter power amplifier unit accumulative total service time, to make the life-span of power amplifier unit be tending towards approaching, extends the whole power amplification system mean free error time;
B2, MCU control module judge in n power amplifier unit whether have a certain power amplifier unit to break down according to the result in above-mentioned steps;
If B3 breaks down, MCU control module, according to fault type control power amplifier input matrix module, a n power amplifier unit and power amplifier output matrix module, completes the switching with the power amplifier unit breaking down to the power amplifier unit free time or that priority is lower;
If B4 occurs temperature and exceedes the threshold value of setting, utilize the switching of the power amplifier unit that program gap Automatically invoked free time or priority are lower and the power amplifier unit breaking down.
3. the power amplifier unit concocting method of a kind of power amplifier battle array according to claim 2, is characterized in that: described step B also comprises following sub-step:
B5, MCU control module complete after the switching of the power amplifier unit to breaking down, and automatically cut off the energy supply control module of the power amplifier unit breaking down.
4. the power amplifier unit concocting method of a kind of power amplifier battle array according to claim 1, is characterized in that: whether described working status parameter includes in program gap state.
5. the power amplifier unit concocting method of a kind of power amplifier battle array according to claim 1, is characterized in that: described working status parameter includes the accumulative total service time of power amplifier unit.
6. the power amplifier unit concocting method of a kind of power amplifier battle array according to claim 1, is characterized in that: described working status parameter includes the real time temperature of power amplifier unit.
7. the power amplifier unit concocting method of a kind of power amplifier battle array according to claim 1, is characterized in that: described working status parameter includes the hot drawing action parameter of power amplifier unit.
8. the power amplifier unit concocting method of a kind of power amplifier battle array according to claim 1, is characterized in that: described working status parameter includes the heat of power amplifier unit and inserts action parameter.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104333831A (en) * | 2014-10-16 | 2015-02-04 | 苏州合欣美电子科技有限公司 | Adaptive audio system |
| CN104486707A (en) * | 2014-10-29 | 2015-04-01 | 广州市迪士普音响科技有限公司 | Power amplifier main/standby switcher and power amplifier fault determination method thereof |
| CN104579201A (en) * | 2014-12-29 | 2015-04-29 | 宁波音王电声股份有限公司 | Power amplifier system |
| CN105307097A (en) * | 2015-10-09 | 2016-02-03 | 湖南康通电子科技有限公司 | Online monitoring method for audio power amplifier and system thereof |
| CN109783050A (en) * | 2019-02-28 | 2019-05-21 | 努比亚技术有限公司 | A kind of sound method of adjustment, mobile terminal and storage medium |
| CN113784271A (en) * | 2021-09-28 | 2021-12-10 | 深圳市奥拓普科技有限公司 | High-temperature protection method and system for sound equipment |
| CN115580807A (en) * | 2022-11-02 | 2023-01-06 | 广州市保伦电子有限公司 | Server-based main and standby power amplifier configuration switching method and system |
| CN117221803A (en) * | 2023-11-09 | 2023-12-12 | 广东保伦电子股份有限公司 | Power amplifier coordination method based on modularization |
| CN117221803B (en) * | 2023-11-09 | 2024-07-09 | 广东保伦电子股份有限公司 | Power amplifier coordination method based on modularization |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104333831A (en) * | 2014-10-16 | 2015-02-04 | 苏州合欣美电子科技有限公司 | Adaptive audio system |
| CN104486707A (en) * | 2014-10-29 | 2015-04-01 | 广州市迪士普音响科技有限公司 | Power amplifier main/standby switcher and power amplifier fault determination method thereof |
| CN104579201A (en) * | 2014-12-29 | 2015-04-29 | 宁波音王电声股份有限公司 | Power amplifier system |
| CN104579201B (en) * | 2014-12-29 | 2017-08-29 | 宁波音王电声股份有限公司 | A kind of power amplifier system |
| CN105307097A (en) * | 2015-10-09 | 2016-02-03 | 湖南康通电子科技有限公司 | Online monitoring method for audio power amplifier and system thereof |
| CN109783050B (en) * | 2019-02-28 | 2024-04-23 | 努比亚技术有限公司 | Sound adjusting method, mobile terminal and storage medium |
| CN109783050A (en) * | 2019-02-28 | 2019-05-21 | 努比亚技术有限公司 | A kind of sound method of adjustment, mobile terminal and storage medium |
| CN113784271A (en) * | 2021-09-28 | 2021-12-10 | 深圳市奥拓普科技有限公司 | High-temperature protection method and system for sound equipment |
| CN113784271B (en) * | 2021-09-28 | 2024-04-16 | 深圳市奥拓普科技有限公司 | High-temperature protection method and system for sound equipment |
| CN115580807B (en) * | 2022-11-02 | 2023-09-08 | 广东保伦电子股份有限公司 | Main and standby power amplifier configuration switching method and system based on server |
| CN115580807A (en) * | 2022-11-02 | 2023-01-06 | 广州市保伦电子有限公司 | Server-based main and standby power amplifier configuration switching method and system |
| CN117221803A (en) * | 2023-11-09 | 2023-12-12 | 广东保伦电子股份有限公司 | Power amplifier coordination method based on modularization |
| CN117221803B (en) * | 2023-11-09 | 2024-07-09 | 广东保伦电子股份有限公司 | Power amplifier coordination method based on modularization |
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