CN202486241U - Airplane cockpit voice-frequency recorder detector - Google Patents
Airplane cockpit voice-frequency recorder detector Download PDFInfo
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- CN202486241U CN202486241U CN 201220086897 CN201220086897U CN202486241U CN 202486241 U CN202486241 U CN 202486241U CN 201220086897 CN201220086897 CN 201220086897 CN 201220086897 U CN201220086897 U CN 201220086897U CN 202486241 U CN202486241 U CN 202486241U
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- aircraft cockpit
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- cockpit voice
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Abstract
The utility model relates to the field of electronics. An airplane cockpit voice-frequency recorder detector comprises a signal control / conversion module, a voice-frequency detecting module, a record playback unit and an impedance converter. An input end of the impedance converter is connected with an output end of a signal source, an output end of the impedance converter is connected with an input end of the signal control / conversion module, an output end of the signal control / conversion module is connected with an input portion of the airplane cockpit voice-frequency recorder, and an input end of the record playback unit is connected with an output portion of the airplane cockpit voice-frequency recorder. Through the impedance converter, seamless interfacing of 50 omegas of impedance output of the signal source and 600 omegas of impedance of the detector is achieved, and therefore the detector is in the same state with an airplane, and accuracy of experimental data is improved greatly.
Description
Technical field
The utility model relates to electronic applications, relates in particular to a kind of aircraft cockpit voice-frequency sender pick-up unit.
Background technology
The aircraft cockpit voice-frequency sender is inner member's conversation in the record aircraft flight process, contact with foreign countries conversation, voice, cabin sound and noise signal, is used for the important airborne equipment that aircraft accident is analyzed.Usually ground detection adopts and the shared experiment detection device of flight data recor der, detects the correctness of aircraft cockpit voice-frequency sender record data, indexs such as testing audio response, degree of distortion, output level.
Pick-up unit is made up of signal source, signal controlling/modular converter, audio detection module, record playback unit.Signal source 50 Ω delivery outlets link to each other with the input port of signal controlling/modular converter; Switch to speech, cabin sound passage through signal controlling/modular converter; Signal controlling/modular converter delivery outlet links to each other with the aircraft cockpit voice-frequency sender, the signal of aircraft cockpit voice-frequency sender tracer signal control/modular converter output.The monitoring output port of aircraft cockpit voice-frequency sender is connected with the monitoring input port of signal controlling/modular converter; The monitoring delivery outlet of signal controlling/modular converter is connected with the audio detection analysis module to be tested, and the network port of aircraft cockpit voice-frequency sender is connected with record playback unit input port.With reference to figure 1.
Cardinal principle is that 50 Ω modulus of impedance analog signals of signal source output are delivered to the aircraft cockpit voice-frequency sender through signal controlling/modular converter and write down (speech, cabin sound) passage accordingly; Simultaneously the monitoring delivery outlet of aircraft cockpit voice-frequency sender is delivered to the test interface of signal controlling/modular converter with monitoring signal, detects with audio detection module or other analytical instrument.Record need break off being connected of aircraft cockpit voice-frequency sender and signal controlling/modular converter during playback, and changes external cable and make the aircraft cockpit voice-frequency sender be operated in the data download state with installation bracket, broadcast after handling through the playback unit data download.
And the actual interior speech frequency signal impedance of delivering to aircraft cockpit voice-frequency sender record is balance and the unbalanced signal of 600 Ω on the aircraft, and is different with signal source output impedance, and signal source is output as unbalanced signal.Can cause error to the test result precision.
And this pick-up unit does not have the system monitoring function, can not gather and comparative analysis the data in the process of the test, can not carry out performance checking to total system, lacks the functional check to acoustic pickup, realizes functions such as fault analysis.Separate equipment is adopted in performance checking and data readback, and on-the-spot use of testing laboratory brought inconvenience.
Summary of the invention
The technical matters that the utility model will solve: the utility model provides a kind of aircraft cockpit audio recording pick-up unit, can improve the measuring accuracy that signal source exports the sound signal of aircraft cockpit voice-frequency sender to.
The technical scheme of the utility model: a kind of aircraft cockpit voice-frequency sender pick-up unit; Comprise: signal controlling/modular converter, audio detection module, record playback unit, impedance transformer; Wherein, The impedance transformer input end is connected with the signal source output terminal; The impedance transformer output terminal is connected with signal controlling/modular converter input end, and signal controlling/modular converter output terminal is connected with aircraft cockpit voice-frequency sender importation, and record playback unit input end is connected with aircraft cockpit voice-frequency sender output.
Further; Also comprise: acquisition module and acquisition and recording system display process industrial computer; Said acquisition module input end is connected with signal controlling/modular converter output terminal, and said acquisition module output terminal is connected with acquisition and recording system display process industrial computer input end.
Further, said signal controlling/modular converter also comprises: the cable interface that is connected with acoustic pickup, and the cable interface that is connected with the Voice Surveillance device, and the on-off controller of aircraft cockpit voice-frequency sender writing task state and data download state is arranged.
The beneficial effect of the utility model:
Aircraft cockpit voice-frequency sender pick-up unit adopts impedance transformer to realize the slitless connection of signal source 50 Ω impedance outputs and pick-up unit 600 Ω impedances, makes pick-up unit consistent with aircraft state, and the test figure precision is had a distinct increment.
Description of drawings
Fig. 1 is a prior art aircraft cockpit voice-frequency sender pick-up unit theory diagram.
Fig. 2 is the utility model embodiment 1 band impedance transformer aircraft cockpit voice-frequency sender pick-up unit theory diagram.
Fig. 3 is the supporting pick-up unit theory diagrams of the utility model embodiment 2 aircraft cockpit voice-frequency senders.
Embodiment
Below in conjunction with Fig. 2, Fig. 3 and embodiment the utility model is done and to be further described:
Embodiment 1: with reference to figure 2.50 Ω delivery outlets of signal source are connected with the impedance transformer input end; The impedance transformer output terminal is connected with signal controlling/modular converter input end; Signal controlling modular converter output terminal is connected with aircraft cockpit voice-frequency sender input end, and aircraft cockpit voice-frequency sender monitoring output terminal is connected with the audio detection module through signal controlling/modular converter to be tested.
Signal flow: 50 Ω impedance simulated audio signals of signal source output are transformed to 600 Ω impedance simulated audio signals through impedance transducer and deliver to signal controlling/modular converter input end, signal controlling/modular converter output terminal and aircraft cockpit voice-frequency sender input end linkage record sound signal.The sound signal of aircraft cockpit voice-frequency sender record is delivered to the monitoring output terminal of signal controlling/modular converter through monitoring delivery outlet, is connected with the audio detection module and tests.The effect of impedance transformer is to convert the 50 Ω impedance simulated audio signals that signal source is exported into 600 Ω balances or the uneven sound signal consistent with aircraft, realizes impedance matching, improves measuring accuracy.
Embodiment 2: with reference to figure 3.Signal controlling/conversion is connected with the acquisition module input end, and the acquisition module output terminal is connected with acquisition and recording system display process industrial computer input end.
Signal flow: the 600 Ω impedance simulated audio signals that signal controlling/modular converter will receive are delivered to acquisition module and are handled, and deliver to acquisition and recording system display process industrial computer after acquisition module is handled and carry out record analysis.When aircraft cockpit voice-frequency sender serviceability is had a question can with the acquisition and recording systematic comparison; Through recorded data in acquisition and recording system display process industrial computer and the aircraft cockpit voice-frequency sender is compared, judge aircraft cockpit voice-frequency sender serviceability.
The acoustic pickup output terminal is connected with signal controlling/modular converter input end; Signal controlling/modular converter output terminal is connected with Voice Surveillance device cabin sound input end; Voice Surveillance device cabin sound output terminal is connected with signal controlling/modular converter cabin sound input end, and signal controlling/modular converter cabin sound output terminal is connected with aircraft cockpit voice-frequency sender cabin sound input end.The on-off controller of signal controlling/modular converter is connected with the State Control line of aircraft cockpit voice-frequency sender, and record playback unit input end is connected with aircraft cockpit voice-frequency sender output.
Signal flow:
The supporting inspection of a: the sound signal of acoustic pickup collection switches to corresponding cabin sound passage through signal controlling/modular converter and delivers to the Voice Surveillance device and synthesize; Sound signal after synthetic is delivered to aircraft cockpit voice-frequency sender record and is fed back the monitoring delivery outlet of monitoring sound signal to signal controlling/modular converter through signal controlling/modular converter respective channel, and signal controlling/modular converter will feed back the signal that comes and deliver to the audio detection module testing.Judge whether feedback signal is the sound signal that acoustic pickup is gathered.Realization has improved device integration to the system support inspection of a whole set of aircraft cockpit voice-frequency sender.
B single-piece inspection: the sound signal of acoustic pickup collection switches to corresponding cabin sound passage through signal controlling/modular converter and delivers to the audio detection module and test, and accomplishes the acoustic pickup single-piece and detects.The 600 Ω impedance simulated audio signals that signal controlling/modular converter will receive are delivered to the Voice Surveillance device and are synthesized; Sound signal after synthetic exports the audio detection module to and tests through signal controlling/modular converter respective channel, accomplishes the performance test of Voice Surveillance device.Realize the test of the single parts of aircraft cockpit voice-frequency sender.
C record playback flow process: after aircraft cockpit voice-frequency sender record data are accomplished; The on-off controller of switching signal control/modular converter makes system works in the data download state; The netting twine data download of record playback unit through being connected with the aircraft cockpit voice-frequency sender through pre-service, carried out format conversion by cabin sound, the classification of voice signal recording channel; Data-switching is become audio file formats, the audio file after changing is play with player.
The beneficial effect of the utility model:
1, aircraft cockpit voice-frequency sender pick-up unit adopts impedance transformer to realize the slitless connection of signal source 50 Ω impedance outputs and pick-up unit 600 Ω impedances, makes pick-up unit consistent with aircraft state, and the test figure precision is had a distinct increment.
2, pick-up unit has increased acquisition module and acquisition and recording system display process industrial computer, can realize the monitoring to process of the test, relatively carries out fault diagnosis with the aircraft cockpit voice-frequency sender.
3, pick-up unit can not only carry out performance test to the single parts of aircraft cockpit voice-frequency sender, and can check a whole set of aircraft cockpit voice-frequency sender, also can accomplish the playback inspection, has improved device integration.
Claims (3)
1. aircraft cockpit voice-frequency sender pick-up unit; It is characterized in that; Comprise: signal controlling/modular converter, audio detection module, record playback unit, impedance transformer; Wherein, the impedance transformer input end is connected with the signal source output terminal, and the impedance transformer output terminal is connected with signal controlling/modular converter input end; Signal controlling/modular converter output terminal is connected with aircraft cockpit voice-frequency sender importation, and record playback unit input end is connected with aircraft cockpit voice-frequency sender output.
2. aircraft cockpit audio recording pick-up unit as claimed in claim 1; It is characterized in that; Also comprise: acquisition module and acquisition and recording system display process industrial computer; Said acquisition module input end is connected with signal controlling/modular converter output terminal, and said acquisition module output terminal is connected with acquisition and recording system display process industrial computer input end.
3. aircraft cockpit voice-frequency sender pick-up unit as claimed in claim 2; It is characterized in that; Said signal controlling/modular converter also comprises: the cable interface that is connected with acoustic pickup; The cable interface that is connected with the Voice Surveillance device, and the on-off controller of aircraft cockpit voice-frequency sender writing task state and data download state is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220086897 CN202486241U (en) | 2012-03-09 | 2012-03-09 | Airplane cockpit voice-frequency recorder detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220086897 CN202486241U (en) | 2012-03-09 | 2012-03-09 | Airplane cockpit voice-frequency recorder detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202486241U true CN202486241U (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220086897 Expired - Fee Related CN202486241U (en) | 2012-03-09 | 2012-03-09 | Airplane cockpit voice-frequency recorder detector |
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| Country | Link |
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| CN (1) | CN202486241U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023602A (en) * | 2015-07-28 | 2015-11-04 | 苏州宏展信息科技有限公司 | Audio test circuit used for recording pen |
| CN109398745A (en) * | 2018-09-25 | 2019-03-01 | 陕西飞机工业（集团）有限公司 | A kind of aircraft floor aggregation of data processing equipment |
| CN110300300A (en) * | 2019-05-17 | 2019-10-01 | 陕西飞机工业（集团）有限公司 | A kind of aircraft video-with-audio recording device detection device and method |
| CN112441255A (en) * | 2020-11-10 | 2021-03-05 | 山东盖特航空科技有限公司 | Automatic testing device and method for flight parameter quick-taking recording system |
-
2012
- 2012-03-09 CN CN 201220086897 patent/CN202486241U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023602A (en) * | 2015-07-28 | 2015-11-04 | 苏州宏展信息科技有限公司 | Audio test circuit used for recording pen |
| CN109398745A (en) * | 2018-09-25 | 2019-03-01 | 陕西飞机工业（集团）有限公司 | A kind of aircraft floor aggregation of data processing equipment |
| CN110300300A (en) * | 2019-05-17 | 2019-10-01 | 陕西飞机工业（集团）有限公司 | A kind of aircraft video-with-audio recording device detection device and method |
| CN112441255A (en) * | 2020-11-10 | 2021-03-05 | 山东盖特航空科技有限公司 | Automatic testing device and method for flight parameter quick-taking recording 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 |
Granted publication date: 20121010 Termination date: 20180309 |
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| CF01 | Termination of patent right due to non-payment of annual fee |