CN101290687B - Method for rapidly obtaining cockpit voice recording - Google Patents
Method for rapidly obtaining cockpit voice recording Download PDFInfo
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- CN101290687B CN101290687B CN2008100664613A CN200810066461A CN101290687B CN 101290687 B CN101290687 B CN 101290687B CN 2008100664613 A CN2008100664613 A CN 2008100664613A CN 200810066461 A CN200810066461 A CN 200810066461A CN 101290687 B CN101290687 B CN 101290687B
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000005236 sound signal Effects 0.000 claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000013500 data storage Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 230000002123 temporal effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The invention aims to solve technical problems of complicated operation, short recording period and so on for an airborne CVR recorder during application, and provides a method for acquiring cockpit voice record quickly. The method has the advantages of simple operation and long recording. The technical proposal adopted by the method comprises the following steps of: acquiring a voice source in a cockpit through a service platform and a remote electronic component and converting the voice source into an audio signal; then, accessing the acquired audio signal to a quick acquisition device in parallel through a transfer cable; performing audio conversion, analog-to-digital conversion and processing and coding encryption to the audio signal with the quick acquisition device; storing data into a memory card; taking out the memory card from the quick acquisition device, and inserting the memory card into a player for voice playback. The method has the advantages that longer voice period can be recorded; voice data with larger volume can be stored; the operation is simple, and the playback processing is convenient; meanwhile, the voice data can be encrypted to prevent voice information from leaking.
Description
Technical field
The present invention relates to the speech recording apparatus in a kind of aircraft, relate to a kind of method of obtaining cockpit voice recording fast particularly.
Background technology
At present, some airline is in order to improve service quality, tighten security flight consciousness, need examine the in-flight crew term of conversing, with standard crew's conversation term.The way that can only take at present be by flight finish the airborne CVR register of back dismounting (in modern times on the commercial aircraft like Boeing, Air Passenger aircraft etc.; Cockpit voice recording device (Cockpit Voice Recorder; Be called for short airborne CVR registering instrument) airborne equipment that is absolutely necessary, its significant feature is to be used for the aircraft accident analysis of causes is used.Cockpit voice recording device cycle index aircraft various sound of nearest 2 hours or 30 minutes in the driving cabin in flight course; Comprise words in the unit, the empty conversation in land, audible warning sound etc.), handle playback apparatus through dedicated ground again the content of airborne CVR recorder trace is carried out playback.But because the time of CVR recorder trace short (the longest 2 hours) does not reach the purpose that the crew is examined far away; Itself costs an arm and a leg, and often dismantles its easy damage and causes serious economy loss; Need to bring inconvenience to work through dedicated ground playback process very complicacy.These all are the difficult problems of puzzlement airline.
Summary of the invention
Technical matterss such as the present invention bothers for solving above-mentioned airborne CVR registering instrument complicated operation in application process, and writing time is short provide a kind of simple to operate, the method for obtaining cockpit voice recording fast that writing time is long.
The present invention realizes goal of the invention through following technical scheme; A kind of method of obtaining cockpit voice recording fast; The steps include: sound signal is collected and changed into to the speech source in the aircraft cockpit through operating platform and electronic remote parts, then the sound signal of collecting is inserted quick deriving means through the transit cable parallel connection; Fast deriving means to sound signal carry out audio conversion, analog to digital conversion and processing, encoding compression is encrypted, and data storing to storing in the card, take out the storage card in the quick deriving means, the insertion playback equipment directly carries out audio playback.
Described quick deriving means carries out audio conversion, analog to digital conversion and processing, encoding compression to sound signal to be encrypted, and data storing to storing in the card, its concrete grammar is:
A is with the power supply connecting system power module on the aircraft;
The b voicefrequency circuit becomes non-equilibrium sound signal with the Balanced Audio signal transition of aircraft, and the sound signal that the recording module input requires is satisfied in output;
C clock Acquisition Circuit is carried out conversion processing to the clock signal in the aircraft, makes it to close main control module and receives and gather;
After the clock signal that d main control module collects, control each road recording module and record;
The e recording module carries out each road sound signal after the analog to digital conversion by certain sampling rate image data, and data are carried out compress-encrypt and in storing card, are that filename store with the temporal information with data storage.
The f auxiliary functional circuit to each recording channel, road monitor, the indication of System self-test, state.
The invention has the beneficial effects as follows that deriving means can use with airborne cockpit voice recording device is parallel fast, can write down the longer voice time on the basis that does not change original airborne cockpit voice recording device device structure; Store more jumbo speech data, and simple to operate, and playback process is convenient; Need not dismantle equipment; Directly choose to store to block and just can carry out playback to voice recording, can encrypt speech data simultaneously, prevent that the voice messaging data from leaking through playback equipment.
Embodiment
A kind of method of obtaining cockpit voice recording fast; The steps include: sound signal is collected and changed into to the speech source in the aircraft cockpit through operating platform and electronic remote parts, then the sound signal of collecting is inserted quick deriving means through the transit cable parallel connection; Fast deriving means to sound signal carry out audio conversion, analog to digital conversion and processing, encoding compression is encrypted, and data storing to storing in the card, take out the storage card in the quick deriving means, the insertion playback equipment directly carries out audio playback.
Described quick deriving means carries out audio conversion, analog to digital conversion and processing, encoding compression to sound signal to be encrypted, and data storing to storing in the card, its concrete grammar is:
A is the AC115V power supply connecting system power module on the aircraft, after the input protection circuit of power module, AC/DC, DC/DC conversion output+28V ,+5V ,+12V ,-the 12V WV;
The b voicefrequency circuit becomes non-equilibrium sound signal with the Balanced Audio signal transition of aircraft, satisfies the sound signal that the recording module input requires through attenuation network, LPF, amplitude adjustment back output again;
C clock Acquisition Circuit is carried out level conversion to 429 data buss in the machine, converts to be fit to the Transistor-Transistor Logic level that master controller receives and handles;
The d recording module carries out each road sound signal after the analog to digital conversion by certain sampling rate image data, and data are carried out compress-encrypt and in storing card, are that filename store with the temporal information with data storage.
E main control module receives and handles 429 clocks, indicates the control and the recording state of each passage recording module;
The f auxiliary functional circuit is mainly accomplished passage monitoring, System self-test, state indication.When pushing the button of a certain passage, monitoring signal will switch to this passage.When pinning certain passage button and unclamp again more than 2 seconds,, show that this passage recording is normal if from monitoring headpone, hear tone signal 3.In addition when each passage is in proper working order, the regular flicker of respective channel duty lantern festival.
Claims (2)
1. method of obtaining cockpit voice recording fast; The steps include: sound signal is collected and changed into to the speech source in the aircraft cockpit through operating platform and electronic remote parts; Then the audio signal transmission of collecting is carried out record to airborne cockpit voice recording device; Airborne cockpit voice recording device under the dismounting carries out audio playback through handling playback apparatus again;
It is characterized in that: carry out following steps again in operating platform and the collection of electronic remote parts and after changing into sound signal:
(1) through transit cable the sound signal parallel connection of collecting is inserted quick deriving means;
(2) fast deriving means to sound signal carry out audio conversion, analog to digital conversion and processing, encoding compression is encrypted, and blocks data storing to storing, and comprises step by step following:
A is with the power supply connecting system power module on the aircraft;
The b voicefrequency circuit becomes non-equilibrium sound signal with the Balanced Audio signal transition of aircraft, and the sound signal that the recording module input requires is satisfied in output;
C clock Acquisition Circuit is carried out conversion processing to the clock signal in the aircraft, makes it to be fit to main control module and receives and gather;
After the clock signal that d main control module collects, control each road recording module and record;
The e recording module carries out each road sound signal after the analog to digital conversion by certain sampling rate image data, and data are carried out compress-encrypt and in storing card, are that filename store with the temporal information with data storage;
(3) the storage card in the quick deriving means of taking-up inserts playback equipment and directly carries out audio playback.
2. a kind of method of obtaining cockpit voice recording fast according to claim 1 is characterized in that: said (2) step is further comprising the steps of:
The f auxiliary functional circuit to each recording channel, road monitor, the indication of System self-test, state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100664613A CN101290687B (en) | 2008-04-07 | 2008-04-07 | Method for rapidly obtaining cockpit voice recording |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100664613A CN101290687B (en) | 2008-04-07 | 2008-04-07 | Method for rapidly obtaining cockpit voice recording |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101290687A CN101290687A (en) | 2008-10-22 |
| CN101290687B true CN101290687B (en) | 2012-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100664613A Expired - Fee Related CN101290687B (en) | 2008-04-07 | 2008-04-07 | Method for rapidly obtaining cockpit voice recording |
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| Country | Link |
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| CN (1) | CN101290687B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867345B (en) * | 2012-09-13 | 2014-12-24 | 深圳市多尼卡电子技术有限公司 | Aviation onboard voice recording device |
| FR3001075B1 (en) * | 2013-01-15 | 2016-07-01 | Airbus Operations Sas | FLIGHT RECORDING SYSTEM IN AN AIRCRAFT INCORPORATING THE AUDIO MANAGEMENT FUNCTION |
| CN103679847B (en) * | 2013-12-05 | 2016-09-14 | 成都民航空管科技发展有限公司 | Voice collecting storage system and method |
| CN107103925B (en) * | 2016-02-22 | 2020-11-10 | 深圳市多尼卡电子技术有限公司 | Access passenger cabin voice recorder equipment |
| CN115022776B (en) * | 2022-08-09 | 2022-11-22 | 中国电子科技集团公司第十研究所 | Airborne comprehensive audio processing unit |
| CN115620721A (en) * | 2022-12-05 | 2023-01-17 | 山东盖特航空科技有限公司 | System and method for acquiring audio record |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2240742Y (en) * | 1995-08-31 | 1996-11-20 | 合肥迪宏电子技术发展有限公司 | IC disc recording instrument for data of motive vehicle running state |
| CN2436385Y (en) * | 2000-08-08 | 2001-06-27 | 张成虎 | Black box for passenger coach |
| CN2886950Y (en) * | 2006-05-18 | 2007-04-04 | 西安交通大学 | Video automobile black box |
| CN200983252Y (en) * | 2006-09-12 | 2007-11-28 | 深圳市多尼卡电子技术有限公司 | Aviation carried digital recordable video player |
-
2008
- 2008-04-07 CN CN2008100664613A patent/CN101290687B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2240742Y (en) * | 1995-08-31 | 1996-11-20 | 合肥迪宏电子技术发展有限公司 | IC disc recording instrument for data of motive vehicle running state |
| CN2436385Y (en) * | 2000-08-08 | 2001-06-27 | 张成虎 | Black box for passenger coach |
| CN2886950Y (en) * | 2006-05-18 | 2007-04-04 | 西安交通大学 | Video automobile black box |
| CN200983252Y (en) * | 2006-09-12 | 2007-11-28 | 深圳市多尼卡电子技术有限公司 | Aviation carried digital recordable video player |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2001-184089A 2001.07.06 |
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| CN101290687A (en) | 2008-10-22 |
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Application publication date: 20081022 Assignee: SHENZHEN INSTITUTE OF AVIONICS TECHNOLOGY Assignor: DONICA AVIATION ENGINEERING Co.,Ltd. Contract record no.: 2014440020280 Denomination of invention: Method for rapidly obtaining cockpit voice recording Granted publication date: 20120627 License type: Common License Record date: 20140721 |
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Effective date of registration: 20190306 Address after: 518000 Guangzhou Nanshan Nantou Street Pass No. 2 Zhiheng Strategic Emerging Industrial Park, 1 Building and 1 Floor Patentee after: Shenzhen Donika Avionics Co.,Ltd. Address before: 518000 South Building, 29 South Science and Technology 6 Road, Nanshan High-tech Zone, Shenzhen City, Guangdong Province, 3rd Floor Patentee before: DONICA AVIATION ENGINEERING Co.,Ltd. |
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