CN205356648U - Novel suspension system utters long and high -pitched sounds - Google Patents
Novel suspension system utters long and high -pitched sounds Download PDFInfo
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- CN205356648U CN205356648U CN201521051224.1U CN201521051224U CN205356648U CN 205356648 U CN205356648 U CN 205356648U CN 201521051224 U CN201521051224 U CN 201521051224U CN 205356648 U CN205356648 U CN 205356648U
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Abstract
The utility model belongs to the technical field of the stereo set, whether specifically provide the audio information who adds fast -speed AD converter collection input audio signal through the input at the stereo set main control board judges to be about to producing uttering long and high -pitched sounds and in time producing opposite signal and catches the function of ending to utter long and high -pitched sounds mutually through high DA, by the main control board, the audio input module, high -speed AD, the pilot lamp, a power supply, the stereo set shell, loudspeaker, programmable amplifier, and a processo, power amplifier circuit, the normally open contact of the rela, the siren, the adder, high -speed DA constitutes. The problem of in the occasion of use stereo sets such as conference hall production suddenly utter long and high -pitched sounds for a long time and damage the stereo set and influence user's hearing is solved, has the accuracy, the characteristics of real -time.
Description
Technical field
This utility model belongs to sound technique field, specifically provides by judging whether that to be ready producing to utter long and high-pitched sounds and produce in time contrary signal gets addition to stop the function uttered long and high-pitched sounds by height DA at the audio-frequency information of the converter Gather and input audio signal of the input of sound equipment master control borad addition high speed.Solve and use in conference hall etc. generation suddenly in the occasion of sound equipment to utter long and high-pitched sounds for a long time to damage sound equipment and affect the problem of hearing user, there is accuracy, the feature of real-time.
Background technology
This system is a kind of to judge whether that to be ready producing to utter long and high-pitched sounds and produce in time contrary signal gets addition to stop to utter long and high-pitched sounds by height DA by adding the audio-frequency information of converter Gather and input audio signal at a high speed at the input of sound equipment master control borad, the article always of lifting user's quality of the life.
The mode stopped of uttering long and high-pitched sounds now mainly has:
1. conscious by user: because by the sense organ of self, user experiences whether sound equipment produces to utter long and high-pitched sounds, it is impossible to well to carry out cannot carrying out in time after judging and judging the operation of sound equipment protection, inaccurate and unreliable.
2: by the direct power-off of audio detection: although can effectively control to utter long and high-pitched sounds, but if in a meeting, this method can not quickly recover sound equipment work, can give meeting carrying out cause unnecessary trouble, efficiency is low.
3: use similar products: in use procedure, the power consumption of processing unit such as fruit product is excessive, can cause that in user's use procedure, battery drain is too fast, it is impossible to continuous firing for a long time, use trouble, thus bringing great inconvenience to user.
4: use similar products: if the buzzer warning used in user's use procedure can not by sufficiently large sound so that user can not discover problem in time, can not well avoid thus causing uttering long and high-pitched sounds, affecting whole work efficiency.
For this situation, by adding the audio-frequency information of converter Gather and input audio signal at a high speed at the input of sound equipment master control borad, this utility model use judges whether that to be ready producing to utter long and high-pitched sounds and produce in time contrary signal gets addition to stop to utter long and high-pitched sounds by highly DA.User is in use, first switch on power, after system power supply, display lamp is lighted, namely system entirety start normal operation, when the external world is to system input audio signal to Audio Input Modules time, speed A/D converter is therefrom by the analog acquisition of audio signal, and be quantified as digital quantity and send processor to, processor can calculate the audio frequency situation of present video input signal after receiving digital signal, and temporarily preserve this amount of audio, continue to the later group audio-frequency information that speed A/D converter collection comes, this audio signal is obtained after being analyzed, if finding, both audio-frequency informations do not have generation and utter long and high-pitched sounds, then the audio signal of input is amplified by programmable amplifier, gain is default value set in advance, and after being amplified, send power amplifier to, power amplifier sends loudspeaker to after the signal of gained is carried out power amplification, loudspeaker are converted to acoustical signal after being amplified by the signal of telecommunication that power amplifier transmits and export to user；If processor detects that the phenomenon uttered long and high-pitched sounds occurs in adjacent audio signal several times, then first input a fading gain to programmable amplifier rapidly, transmit signal to siren and carry out audio alarm to remind user, and transmit a signal to relay, relay cuts off the power supply of power amplifier, loudspeaker are made not receive signal, retell and after several groups of audio signals are analyzed, calculate a new audio digital signals antipodal with audio frequency of uttering long and high-pitched sounds, and it is output into analog quantity by DA high-speed converters, by adder by itself and input Signal averaging, eliminate thereby through the mode reversely offset and utter long and high-pitched sounds, processor recovers programmable amplifier gain again, reset relay is energized, thus ensureing that howling stops with the fastest speed, protection sound equipment and hearing user.Solve and use in conference hall etc. generation suddenly in the occasion of sound equipment to utter long and high-pitched sounds for a long time the problem damaging sound equipment and affect hearing user.There is the feature of accuracy and real-time.
Utility model content
The purpose of this utility model is to overcome to use generation suddenly in the occasion of sound equipment to utter long and high-pitched sounds for a long time the problem damaging sound equipment and affect hearing user in conference hall etc..
For this, this utility model provides a kind of novel suspension system of uttering long and high-pitched sounds, including: master control borad, Audio Input Modules, speed A/D converter, display lamp, power supply, casing of sound equipment, loudspeaker, programmable amplifier, processor, power amplifier, relay, siren, adder, high speed D/A converter.Wherein, master control borad and loudspeaker are arranged on inside casing of sound equipment；Audio Input Modules, speed A/D converter, display lamp, power supply, casing of sound equipment, programmable amplifier, processor, power amplifier, relay, siren, adder, high speed D/A converter are arranged on inside master control borad；Audio Input Modules, speed A/D converter, display lamp, casing of sound equipment, programmable amplifier, processor, power amplifier, relay, siren, adder, high speed D/A converter are connected with power supply, and are powered by power supply；Converter is connected with Audio Input Modules with programmable amplifier；Speed A/D converter, display lamp, casing of sound equipment, programmable amplifier, relay, siren, high speed D/A converter are connected with processor；Programmable amplifier, relay are connected with power amplifier；Power amplifier is connected with loudspeaker；Audio Input Modules, height D/A converter are connected with adder.
The novel suspension system of uttering long and high-pitched sounds of above-mentioned one, by the sense organ of self, the method provided finds that the mode closing sound equipment is more accurate than user, feasible.
The novel suspension system of uttering long and high-pitched sounds of above-mentioned one, described processor is the processor of super low-power consumption.
The novel suspension system of uttering long and high-pitched sounds of above-mentioned one, the certainty of measurement of described speed A/D converter is 16；The conversion accuracy of high speed D/A converter is 16.
The novel suspension system of uttering long and high-pitched sounds of above-mentioned one, the amplification of described programmable amplifier can be regulated by processor.
The novel suspension system of uttering long and high-pitched sounds of above-mentioned one, described relay can control the power supply of power amplifier.
The beneficial effects of the utility model: include master control borad, Audio Input Modules, speed A/D converter, display lamp, power supply, casing of sound equipment, loudspeaker, programmable amplifier, processor, power amplifier, relay, siren, adder, high speed D/A converter.Solve and use in conference hall etc. generation suddenly in the occasion of sound equipment to utter long and high-pitched sounds for a long time the problem damaging sound equipment and affect hearing user.
Below with reference to accompanying drawing, this utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is a kind of novel suspension system of uttering long and high-pitched sounds.
Description of reference numerals: master control borad 1, Audio Input Modules 2, speed A/D converter 3, display lamp 4, power supply 5, casing of sound equipment 6, loudspeaker 7, programmable amplifier 8, processor 9, power amplifier 10, relay 11, siren 12, adder 13, high speed D/A converter 14.
Detailed description of the invention
If Fig. 1 is a kind of novel suspension system of uttering long and high-pitched sounds, including: master control borad 1, Audio Input Modules 2, speed A/D converter 3, display lamp 4, power supply 5, casing of sound equipment 6, loudspeaker 7, programmable amplifier 8, processor 9, power amplifier 10, relay 11, siren 12, adder 13, high speed D/A converter 14.Wherein, master control borad 1 and loudspeaker 7 are arranged on casing of sound equipment 6 inside；It is internal that Audio Input Modules 2, speed A/D converter 3, display lamp 4, power supply 5, casing of sound equipment 6, programmable amplifier 8, processor 9, power amplifier 10, relay 11, siren 12, adder 13, high speed D/A converter 14 are arranged on master control borad 1；Audio Input Modules 2, speed A/D converter 3, display lamp 4, casing of sound equipment 6, programmable amplifier 8, processor 9, power amplifier 10, relay 11, siren 12, adder 13, high speed D/A converter 14 are connected with power supply 5, and are powered by power supply 5；Converter 3 is connected with Audio Input Modules 2 with programmable amplifier 8；Speed A/D converter 3, display lamp 4, casing of sound equipment 6, programmable amplifier 8, relay 11, siren 12, high speed D/A converter 14 are connected with processor 9；Programmable amplifier 8, relay 11 are connected with power amplifier 10；Power amplifier 10 is connected with loudspeaker 7；Audio Input Modules 2, height D/A converter 14 are connected with adder 13.
Processor 9 adopts the MSP430F149 of TI, has the feature of super low-power consumption, and siren 12 uses the buzzer of big volume to design, and speed A/D converter 3 uses AD7705 chip, high speed D/A converter 14 to adopt the DAC8560 chip of TI company；User is in use, first switch on power 5, after system power supply, display lamp 4 is lighted, namely system entirety start normal operation, when the external world is to system input audio signal to Audio Input Modules 2 time, speed A/D converter 3 is therefrom by the analog acquisition of audio signal, and be quantified as digital quantity and send processor 9 to, processor 9 can calculate the audio frequency situation of present video input signal after receiving digital signal, and temporarily preserve this amount of audio, continue to speed A/D converter 3 and gather the later group audio-frequency information come, this audio signal is obtained after being analyzed, if finding, both audio-frequency informations do not have generation and utter long and high-pitched sounds, , then the audio signal of input is amplified by programmable amplifier 8, gain is default value set in advance, and after being amplified, send power amplifier 10 to, power amplifier 10 sends loudspeaker 7 to after the signal of gained is carried out power amplification, loudspeaker 7 are converted to acoustical signal after being amplified by the signal of telecommunication that power amplifier 10 transmits and export to user；If processor 9 detects that the phenomenon uttered long and high-pitched sounds occurs in adjacent audio signal several times, input a fading gain then first to rapidly programmable amplifier 8, transmit signal to siren 12 and carry out audio alarm to remind user, and transmit a signal to relay 11, relay 11 cuts off the power supply of power amplifier, loudspeaker 7 are made not receive signal, retell and after several groups of audio signals are analyzed, calculate a new audio digital signals antipodal with audio frequency of uttering long and high-pitched sounds, and it is output into analog quantity by DA high-speed transitions 14 device, by adder 13 by itself and input Signal averaging, eliminate thereby through the mode reversely offset and utter long and high-pitched sounds, processor 4 recovers programmable amplifier 8 gain again, reset relay 11 is energized, thus ensureing that howling stops with the fastest speed, protection sound equipment and hearing user.Solve and use in conference hall etc. generation suddenly in the occasion of sound equipment to utter long and high-pitched sounds for a long time the problem damaging sound equipment and affect hearing user.There is the feature of accuracy and real-time.
Exemplified as above is only to illustration of the present utility model, is not intended that the restriction to protection domain of the present utility model, every belongs within protection domain of the present utility model with the same or analogous design of this utility model.
Claims (3)
1. a novel suspension system of uttering long and high-pitched sounds, it is characterised in that including: master control borad (1), Audio Input Modules (2), speed A/D converter (3), display lamp (4), power supply (5), casing of sound equipment (6), loudspeaker (7), programmable amplifier (8), processor (9), power amplifier (10), relay (11), siren (12), adder (13), high speed D/A converter (14)；
Wherein, master control borad (1) and loudspeaker (7) are arranged on casing of sound equipment (6) inside；It is internal that Audio Input Modules (2), speed A/D converter (3), display lamp (4), power supply (5), casing of sound equipment (6), programmable amplifier (8), processor (9), power amplifier (10), relay (11), siren (12), adder (13), high speed D/A converter (14) are arranged on master control borad (1)；Audio Input Modules (2), speed A/D converter (3), display lamp (4), casing of sound equipment (6), programmable amplifier (8), processor (9), power amplifier (10), relay (11), siren (12), adder (13), high speed D/A converter (14) are connected with power supply (5), and are powered by power supply (5)；Converter (3) is connected with Audio Input Modules (2) with programmable amplifier (8)；Speed A/D converter (3), display lamp (4), casing of sound equipment (6), programmable amplifier (8), relay (11), siren (12), high speed D/A converter (14) are connected with processor (9)；Programmable amplifier (8), relay (11) are connected with power amplifier (10)；Power amplifier (10) is connected with loudspeaker (7)；Audio Input Modules (2), height D/A converter (14) are connected with adder (13).
2. the novel suspension system of uttering long and high-pitched sounds of one according to claim 1, it is characterised in that: the processor that described processor (9) is super low-power consumption.
3. the novel suspension system of uttering long and high-pitched sounds of one according to claim 1, it is characterised in that: the certainty of measurement of described speed A/D converter (3) is 16；The conversion accuracy of high speed D/A converter (14) is 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521051224.1U CN205356648U (en) | 2015-12-16 | 2015-12-16 | Novel suspension system utters long and high -pitched sounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521051224.1U CN205356648U (en) | 2015-12-16 | 2015-12-16 | Novel suspension system utters long and high -pitched sounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205356648U true CN205356648U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521051224.1U Expired - Fee Related CN205356648U (en) | 2015-12-16 | 2015-12-16 | Novel suspension system utters long and high -pitched sounds |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205356648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106231490A (en) * | 2016-07-28 | 2016-12-14 | 张兴 | Enlarging system prevents the program control device uttered long and high-pitched sounds |
-
2015
- 2015-12-16 CN CN201521051224.1U patent/CN205356648U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106231490A (en) * | 2016-07-28 | 2016-12-14 | 张兴 | Enlarging system prevents the program control device uttered long and high-pitched sounds |
| CN106231490B (en) * | 2016-07-28 | 2018-11-30 | 张兴 | The anti-program control device uttered long and high-pitched sounds of enlarging system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20161216 |