CN1860869A - Digital birds-dispersing system used in domestic air-port area - Google Patents
Digital birds-dispersing system used in domestic air-port area Download PDFInfo
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- CN1860869A CN1860869A CNA2006100467226A CN200610046722A CN1860869A CN 1860869 A CN1860869 A CN 1860869A CN A2006100467226 A CNA2006100467226 A CN A2006100467226A CN 200610046722 A CN200610046722 A CN 200610046722A CN 1860869 A CN1860869 A CN 1860869A
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Abstract
A digitalized bird dispelling system for airport is composed of MCU/SPCE061A, keyboard, high-speed D/A converter, flash memory/SPR4096, broad-spectrum power amplifier and loudspeaker. Its working steps include recording the images and sounds of different birds, separating sounds from each other, acquiring the sounds, building up a bird dispelling sound frequency library, transforming the bird dispelling sound to War format, D/A conversion, and outputting the sound to power amplifier.
Description
Technical field
The invention belongs to electronics, communication and automatic control technology field.
Background technology
Current, along with the demand of each application to smart machine increases rapidly, the exploitation of embedded system becomes the research focus in software and hardware field gradually.Embedded system be application-centered, based on computer technology, adopt the mode of " cutting the garment according to the figure " that required function is embedded in the various application systems, it has merged calculator software/hardware technology, the communication technology and semiconductor microelectronic technology, is the final products of information technology IT.Voice processing technology is based upon on phonetics and the Digital Signal Processing basis, the voice signal model is analyzed, stored a comprehensive branch of learning of (coding), transmission, identification and aspect research such as synthetic.Wherein, the core of voice storage technique is a speech coding technology.Except that the seventies and eighties PCM (pulse code modulation), ADPCM (adaptive difference pulse code modulation), AM (delta modulation), LPC (linear predictive coding) and ME-LPC (multi-pulse excitation linear predictive coding) have obtained the bigger progress, occurred better encryption algorithm in recent years again, voice storage technique is to two-forty, high-quality, big capacity development.Adopt embedded technology that voice signal is at a high speed handled in real time, add ripe day by day voice signal Processing Algorithm, fully realized the perfect adaptation of embedded technology and voice processing technology.
Summary of the invention
Purpose of the present invention just provides a kind of probability and number of times that reduces airport birds plane collision incident, ensures that the digital bird-repeller system of bird is driven in the movement area, domestic airport that is applicable to of flight safety, raising safety coefficient.
Technical solution of the present invention is, records birds image and sound, uses line to set up back-up from sound, by sound collection set up to common birds have obviously drive the bird effect drive the bird audio repository.Be converted to the .Wav audio format that is beneficial to the employing audio compression algorithm with driving bird sound.Solve problem with the speech chip interface by the embedded system plate, finish collection to voice signal, compression, digital filtering and into the sound circuit plate of storing, finish digital-to-analogue conversion simultaneously, digital speech is outputed to power amplification circuit.The digital broadband amplifiers of power amplification circuit employing wideband 20Hz-5KHz is finished the power amplification to the intelligent digital bird-scaring unit.
The digital bird-repeller system of bird is driven in a kind of movement area, domestic airport that is applicable to, is made of hardware and software two parts.
A. hardware components bird-scaring unit of the present invention is made of keyboard 1, MCU/SPCE061A 2, high-speed d/a 3, flash memory/SPR4096 4, wideband power amplifier 5 and loudspeaker 6, whole bird-scaring unit system is a core with MCU/SPCE061A 2, keyboard 1 links to each other with MCU/SPCE061A 2 by IOA0, IOA1, IOA2, memory flash memory/the SPR4096 4 that extends out links to each other with MCU/SPCE061A 2 by IOB0, IOB1, high-speed d/a 3 is connected to the DAC of MCU/SPCE061A 2, wideband power amplifier 5 is connected on the output of high-speed d/a 3, and loudspeaker 6 are connected on the output of wideband power amplifier 5;
B. the method for using bird-scaring unit to drive bird is,
At first the whole bird chip system that drives is carried out initialization, finish basic setup to system hardware, comprise working method and state that acquiescence is set, begin then keyboard is carried out periodic scan, be not pressed if there is button, then adopt the working method that us give tacit consent to play voice, storing more than 20 kind has the sound that obviously drives the bird effect to birds, and by being divided into 4 groups season, Various Seasonal is play different sound combinations.When bird sound is driven in broadcast, adopt scheme greater than 2: 1, if promptly play be 6 seconds drive bird sound, finish the back with regard to rest 12-20 second, then play another first sound then, such purpose is exactly to satisfy the requirement of the long-time steady operation of wideband power amplifier.Adopt the 2Hz timer interrupt mode loop play to be carried out in every kind of combination, full-time employment 13 hours.If a button is pressed, we can adjust the time interval and the broadcasting time of speech play according to button.
Playing the voice main program course of work describes: at first carry out the speech play initialization, mainly finish the initialization setting to manual work mode, timer, interruption and DAC etc.Judge that then whether voice queue is full, if not full, then obtain voice resource and is filled into voice queue; If voice queue has expired, judge whether the end address of voice, the words that are just stop playback, otherwise data and broadcast are obtained in decoding, wait at last finishing, and finish whole procedure.
Speech play interrupt service subroutine work engineering is described: after finishing the speech play initialization, wait for whether FIQ is that TimerA interrupts, if clear interrupt status is also taken out data from the broadcast formation and sent DAC output, the register group is popped then, interrupts returning.Interrupt if not TimerA, then only clear interrupt status goes out stack operation to the register group, interrupts returning.
The invention has the beneficial effects as follows, drive away the various birds on lawn, movement area, airport, reduce the probability and the number of times of airport birds plane collision incident greatly, ensure flight safety, improve safety coefficient, satisfy CAAC, each airport leader to driving the requirement of bird work, thereby improve the economic benefit of airport joint-stock company and airline.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is a hardware structure diagram of the present invention.
Fig. 2 is the operating circuit of outer extension memory flash memory/SPR4096 of the present invention.
Fig. 3 is a systems soft ware flow process of the present invention.
Among the figure, 1. keyboard, 2.MCU/SPCE061A, 3. high-speed d/a, 4. flash memory/SPR4096,5. wideband power amplifier, 6. loudspeaker.
Embodiment
1, the sound collection and the foundation of driving the bird audio repository
The purpose of sound collection be set up to common birds have obviously drive the bird effect drive the bird audio repository.Horrible cry and scaring sound by birds natural enemy, birds are formed.The process of gathering is the code stream that target sound is converted to digital audio encoding.What the native system audio format adopted is the .Wav form, so target sound need be converted to the .Wav form.Through with electroacoustic scholar's discussion, for obtaining high as far as possible signal to noise ratio, improve the voice quality of digital speech, take following scheme:
(1) adopt the dcom video camera of Sony to record image and sound.
(2) use line to set up back-up from sound.
(3) be converted to the .wav file.
2. the hardware configuration of embedded system plate adopts the core microprocessors of SPCE061A as the embedded system plate, and the complete SCM system of having taken structure comprises microprocessor (MCU), flash memory (Flash RAM), keyboard, power amplifier and loudspeaker.Utilize the language process function of 16 single-chip microcomputers of Ling Yang SPCE061A, the voice resource that is stored in the flash memory is play, and can regulate reproduction time and order at any time according to button, the decoded voice signal of single-chip microcomputer is from the output of high-speed d/a mouth, by the wideband power amplifier driving loudspeaker playback of design.
3, the design of the memory circuit of voice
Adopt outer extension memory SPR4096 Flash RAM as the voice document storage medium.SPR4096 includes 512K * 8bit FlashRAM and 4K * 8bit SRAM, 512K * 8bitsFLASH, being divided into is 256 sectors, every sector 2k byte, communication interface adopts serial mode, and there are two kinds of power supplys of VDDI, VDDQ inside, and wherein (2.25V～2.75V) is as the power supply of inner Flash Memory and logic control block for VDDI, VDDQ (2.25～3.6) is as I/O mouth power supply, and maximum is supported clock 5MHz.
4. adopt the bird sound that drives of subband compression algorithm logarithmic code form to compress.
Consider the memory span of embedded speech system, adopt the bird sound that drives of subband compression algorithm logarithmic code form to compress.The subband compression algorithm refers to Ling Yang audio compression algorithm SACM_A2000, and this compression algorithm compression ratio is less, is 8: 1, so have the characteristics of high-quality, high code check, is applicable to hi-fi music and voice.
5. work out D/A, coding, decoding program module
By further investigation, hardware configuration, the instruction system of analysis SPCE061A and the api function storehouse that is provided, D/A, encoding and decoding, filter module that establishment is fit to drive the bird chip system.
6. the design of software and realization
Main program flow as shown in the figure, program is with assembler language and C language compilation.Functional module mainly comprises four in the software systems, and voice compression module, voice storage module, time block and sound playing module are described below respectively.
(1) compress speech and decoder module: because the sound of gathering is digital tone source, it is more to take resource, so just can store among the speech chip after must compressing sound.Decoding is that digital speech is returned to corresponding PCM form, should have than high s/n ratio for making sound, has added the program of digital filtering in this module.
(2) data memory module: in order to realize driving the variation of bird sound, this project has been set up the voice resource storehouse, pass through data memory module, can the voice data storage behind the compressed encoding in the big capacity flash memory chip that extends out, can selectively play by programme-control easily like this.
(3) time block: customized the length and the interval of sound playing, having worked out a plurality of timing routines in the module can be by calling the broadcast mode that bird sound is driven in flexible control.
(4) sound playing module: major function be decision to being stored in the method for calling that drives bird sound of speech chip, and call time block and carry out interval broadcast and shuffle.High speed and high accuracy have guaranteed quality of signals and the flatness after the conversion.
Subordinate list 1 is for driving the tabulation of bird chip parameter.
Subordinate list 1
| The embedded system plate | Resistance ﹠ diode (unit of resistance is ohm) | Electric capacity | Other | ||
| A. power supply area | * zero resistance is not welded D2 (diode) D3 (diode) R1 (zero resistance) R2 (zero resistance) R3 (zero resistance) | R4 (zero resistance) R5 (zero resistance) R6 (zero resistance) R7 (zero resistance) R8 (330) | C1(220u) C2(104) C3(220u) C4(104) | J1 (power supply input) U3 (SPY0029 voltage-stabiliser tube) D1 (diode of giving out light) | |
| B. download area | D4 (3.3V voltage-stabiliser tube) R9 (33) R10 (33) | R11(33) R12(33) R13&R14(3.3K) | C5(104) C6(560p) | U4 (74HC224) J2 (ezPROBE interface) S5 (interface selection wire jumper) | |
| C. audio zone | R15(470K) R16(10K) R17(10K) R18(1K) R19(3K) R20(3K) R21(1K) | C7(4.7u) C8(104) C9(502) C10(22u) C11(104) C12(224) C13(224) | C14(220u) C15(104) C16(224) C17(104) C18(104) C19(100u) | X1 (MIC) J3 (DAC interface) R22 (1K potentiometer) U2 (SPY0030) J4 (horn interface) | |
| The D.SPCE061A﹠ periphery | R23(3.3K) R24(1K) | C20(104) C21(100u) C22(104) C23(100u) C24(104) C25(100u) C26(104) | C27(100u) C28(104) C29(100u) C30(104) C31(100u) C32(104) C33(3300p) | J5 (port voltage selection wire jumper) U1 (SPCE061A) J6 (AD reference voltage) D5 (light emitting diode) | |
| E. keying district | S2 (button) S3 (button) S1 (button) | ||||
| F. the district resets | R25(4.7K) | C34(104) | S4 (button) | ||
| G. ports zone | J7 (I/O port) J8 (I/O port) J9 (I/O port) J10 (I/O port) | ||||
| The sound circuit plate | Resistance ﹠ diode (unit of resistance is ohm) | Electric capacity | Other | ||
| H. extension storage district | D1(4148) R1(2K) R2(10K) | C1(104) C2(104) | C3(104) C4(104) | SPR4096 | |
| I. wideband power amplifier district | The fool 175 | ||||
Claims (4)
1. one kind is applicable to that the movement area, domestic airport drives the digital bird-repeller system of bird, it is characterized in that,
A. hardware components bird-scaring unit of the present invention is by keyboard (1), MCU/SPCE061A (2), high-speed d/a (3), flash memory/SPR4096 (4), wideband power amplifier (5) and loudspeaker (6) constitute, whole bird-scaring unit system is a core with MCU/SPCE061A (2), keyboard (1) passes through IOA0, IOA1, IOA2 links to each other with MCU/SPCE061A (2), memory flash memory/the SPR4096 (4) that extends out passes through IOB0, IOB1 links to each other with MCU/SPCE061A (2), high-speed d/a (3) is connected to the DAC of MCU/SPCE061A (2), wideband power amplifier (5) is connected on the output of high-speed d/a (3), and loudspeaker (6) are connected on the output of wideband power amplifier (5);
B. the method for using bird-scaring unit to drive bird is, at first the whole bird chip system that drives carried out initialization, begins then keyboard is carried out periodic scan, plays voice at last; Playing the voice main program course of work is: at first carry out the speech play initialization, finish initialization setting to manual work mode, timer, interruption and DAC etc., judge that then whether voice queue is full, if not full, then obtain voice resource and is filled into voice queue; If voice queue has expired, judge whether the end address of voice, the words that are just stop playback, otherwise data and broadcast are obtained in decoding, wait at last finishing, and finish whole procedure.
2. the digital bird-repeller system of bird is driven in a kind of movement area, domestic airport that is applicable to according to claim 1, it is characterized in that, when keyboard was carried out periodic scan, no button was pressed, then when bird sound is driven in broadcast, employing was greater than 2: 1 scheme, promptly play be 6 seconds drive bird sound, finish the back with regard to rest 12-20 second, then play another first sound then, adopt the 2Hz timer interrupt mode loop play to be carried out in every kind of combination, full-time employment 13 hours.
3. the digital bird-repeller system of bird is driven in a kind of movement area, domestic airport that is applicable to according to claim 1, it is characterized in that when keyboard was carried out periodic scan, a button is pressed, requires to adjust the time interval and the broadcasting time of speech play according to button.
4. the digital bird-repeller system of bird is driven in a kind of movement area, domestic airport that is applicable to according to claim 1, it is characterized in that, speech play interrupt service subroutine work engineering is: after finishing the speech play initialization, wait for whether FIQ is that TimerA interrupts, if words, clear interrupt status is also taken out data from the broadcast formation and is sent DAC output, and the register group is popped then, interrupts returning; Interrupt if not TimerA, then only clear interrupt status goes out stack operation to the register group, interrupts returning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100467226A CN1860869A (en) | 2006-05-25 | 2006-05-25 | Digital birds-dispersing system used in domestic air-port area |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100467226A CN1860869A (en) | 2006-05-25 | 2006-05-25 | Digital birds-dispersing system used in domestic air-port area |
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| CN1860869A true CN1860869A (en) | 2006-11-15 |
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| CNA2006100467226A Pending CN1860869A (en) | 2006-05-25 | 2006-05-25 | Digital birds-dispersing system used in domestic air-port area |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098610A (en) * | 2011-03-11 | 2011-06-15 | 湖南继善高科技有限公司 | Loudspeaker unit, loudspeaking device and orientated sound wave bird driving device |
| CN114271259A (en) * | 2021-12-24 | 2022-04-05 | 中国人民解放军93114部队 | Method and device for manufacturing sound signal of airport bird repelling equipment |
| CN116859776A (en) * | 2023-06-25 | 2023-10-10 | 广州市声讯电子科技股份有限公司 | Dispersing medium control method and device applied to bird repellent |
-
2006
- 2006-05-25 CN CNA2006100467226A patent/CN1860869A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098610A (en) * | 2011-03-11 | 2011-06-15 | 湖南继善高科技有限公司 | Loudspeaker unit, loudspeaking device and orientated sound wave bird driving device |
| CN114271259A (en) * | 2021-12-24 | 2022-04-05 | 中国人民解放军93114部队 | Method and device for manufacturing sound signal of airport bird repelling equipment |
| CN114271259B (en) * | 2021-12-24 | 2022-11-04 | 中国人民解放军93114部队 | Method and device for manufacturing sound signal of airport bird repelling equipment |
| CN116859776A (en) * | 2023-06-25 | 2023-10-10 | 广州市声讯电子科技股份有限公司 | Dispersing medium control method and device applied to bird repellent |
| CN116859776B (en) * | 2023-06-25 | 2024-01-09 | 广州市声讯电子科技股份有限公司 | Dispersing medium control method and device applied to bird repellent |
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