CN204010061U - A kind of audio recording system for aircraft - Google Patents
A kind of audio recording system for aircraft Download PDFInfo
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- CN204010061U CN204010061U CN201420329056.7U CN201420329056U CN204010061U CN 204010061 U CN204010061 U CN 204010061U CN 201420329056 U CN201420329056 U CN 201420329056U CN 204010061 U CN204010061 U CN 204010061U
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Abstract
The utility model provides a kind of audio recording system for aircraft, can realize the speech information that records driving cabin in the time of daily flight.Audio recording system of the present utility model is connected with driving cabin audio signal source side by side with the black box of aircraft, this audio recording system comprises: isolation Audio Matching interface unit, for being separated by and liftoffly obtaining sound signal from described driving cabin audio signal source with described black box; Gather storage unit, be connected with described isolation Audio Matching interface unit, for described sound signal is converted to voice data; Data access unit, for preserving described voice data; Memory element in this data access unit is solid-state electronic storage chip.
Description
Technical field
The utility model relates to a kind of audio recording system for aircraft.
Background technology
In aircraft operational process, black box can record the speech information of driving cabin, is mainly used in accident investigation, but is not suitable for the daily flight safety supervision of aircraft.Therefore need a kind of audio recorder, to record the speech information of driving cabin when the daily flight.
Summary of the invention
In view of this, the utility model provides a kind of audio recording system for aircraft, can realize the speech information that records driving cabin in the time of daily flight.
The utility model provides following technical scheme:
A kind of audio recording system for aircraft, this audio recording system is connected with driving cabin audio signal source side by side with the black box of aircraft, this audio recording system comprises: isolation Audio Matching interface unit, for being separated by and liftoffly obtaining sound signal from described driving cabin audio signal source with described black box; Gather storage unit, be connected with described isolation Audio Matching interface unit, for described sound signal is converted to voice data; Data access unit, for preserving described voice data; Memory element in this data access unit is solid-state electronic storage chip.
Alternatively, described audio recording system also comprises power supply unit, described power supply unit comprises power failure detection circuit, energy-storage travelling wave tube and power generation module, described energy-storage travelling wave tube is for detecting that at described power failure detection circuit the externally fed of described power supply unit interrupts, to described collection storage unit power supply; Power generation module is used for receiving externally fed and to described audio recording system power supply; Described power supply unit also for sending signal to described collection storage unit in the situation that described externally fed interrupts.
Alternatively, described energy-storage travelling wave tube is capacitor, and its capacitance is greater than 2F.
Alternatively, between described data access unit and described collection storage unit, be connected with nine kinds of needles interface.
According to the technical solution of the utility model, audio recording system is connected with driving cabin audio signal source, and adopts the sizable solid-state electronic storage chip of memory capacity as memory element, the speech information record of the driving cabin therefore can be competent at daily flight time.Audio recording system in the present embodiment is isolated with while and black box, thereby can avoid affecting the security of operation of black box.
Brief description of the drawings
Accompanying drawing, for understanding the utility model better, does not form improper restriction of the present utility model.Wherein:
Fig. 1 is according to the schematic diagram of the basic structure of the audio recording system for aircraft of the utility model embodiment;
Fig. 2 is according to the schematic diagram of a kind of structure of the collection storage unit 102 of the utility model embodiment;
Fig. 3 is according to the schematic diagram of the main modular of the power supply unit of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, example embodiment of the present utility model is explained, to help understanding, they should be thought to be only exemplary comprising the various details of the utility model embodiment.Therefore, those of ordinary skill in the art will be appreciated that, can make various changes and amendment to the embodiments described herein, and can not deviate from scope and spirit of the present utility model.Equally, for clarity and conciseness, in following description, omitted the description to known function and structure.
Fig. 1 is according to the schematic diagram of the basic structure of the audio recording system for aircraft of the utility model embodiment.As shown in Figure 1, this audio recording system 10 is connected with driving cabin audio signal source 12 side by side with the black box 11 of aircraft.Driving cabin sound signal mainly, from the microphone of librarian use, has multi-section microphone conventionally in driving cabin, therefore the driving cabin audio signal source 12 is here that multiple audio signal sources are done to as a whole expression.Audio recording system 10 mainly comprises isolation Audio Matching interface unit 101, gathers storage unit 102 and data access unit 103.
Isolation Audio Matching interface unit 101 is for being separated by and liftoffly obtaining sound signal from driving cabin audio signal source 12 with black box 11.Wherein main isolated component can adopt isolating transformer.Gather storage unit 102 and be connected with isolation Audio Matching interface unit 101, for sound signal is converted to voice data.Data access unit 103 is for preserving above-mentioned voice data; Memory element in this data access unit is solid-state electronic storage chip.
Audio recording system in the present embodiment is connected with driving cabin audio signal source, and adopts the sizable solid-state electronic storage chip of memory capacity as memory element, the speech information record of the driving cabin therefore can be competent at daily flight time.Audio recording system in the present embodiment is isolated with while and black box, thereby can avoid affecting the security of operation of black box.
Fig. 2 is according to the schematic diagram of a kind of structure of the collection storage unit 102 of the utility model embodiment.As shown in Figure 2, gather in storage unit 102 and have multiple audio collection chips, a field-programmable gate array (FPGA) chip, and a digital signal processor (DSP).Sequential control and the data buffering of realizing audio collection chip by FPGA, dsp processor completes operational scheme control, data preparation, realizes and completes data storage to data access unit 103.
Audio recording system 10 can also comprise power supply unit, and it is connected (not shown in figure 1) with collection storage unit 102.Fig. 3 is according to the schematic diagram of the main modular of the power supply unit of the utility model embodiment.As shown in Figure 3, power supply unit 30 mainly comprises power failure detection circuit and energy-storage travelling wave tube, and power generation module.This power generation module receives aircraft AC115V power supply, produces DC5V, DC3.3V DC supply, supplies with for the parts of audio recording system 10 provide power supply.
Power failure detection circuit is used for detecting the externally fed situation of power supply unit, as this externally fed interrupts, powered to gathering storage unit 102 by energy-storage travelling wave tube, meanwhile, power failure detection circuit also will be to gathering storage unit 102 transmitted signals to point out it to do data processing in order to avoid corrupted data during energy-storage travelling wave tube power supply.This signal sends to fpga chip and DSP simultaneously, after DSP receives, carries out data conservation treatment.Energy-storage travelling wave tube can adopt super capacitor, and for example capacitance is greater than the capacitor of 2F, can power 1S left and right so that the latter completes the data processing before power-off to gathering storage unit 102.
Store full in the situation that at data access unit 103, need to by its with gather that storage unit 103 disconnect and data wherein derived.Visual data access unit 103 will often plug operation.The external interface of solid-state electronic storage chip adopts conductive contact blade conventionally, but in the present embodiment, between data access unit 103 and collection storage unit 102, adopts nine kinds of needles interface, pegs graft more convenient, and still can keep good contact under the vibration environment of flight.
Above-mentioned embodiment, does not form the restriction to the utility model protection domain.Those skilled in the art should be understood that, depend on designing requirement and other factors, various amendments, combination, sub-portfolio can occur and substitute.Any amendment of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in the utility model protection domain.
Claims (4)
1. for an audio recording system for aircraft, it is characterized in that, this audio recording system is connected with driving cabin audio signal source side by side with the black box of aircraft, and this audio recording system comprises:
Isolation Audio Matching interface unit, for being separated by and liftoffly obtaining sound signal from described driving cabin audio signal source with described black box;
Gather storage unit, be connected with described isolation Audio Matching interface unit, for described sound signal is converted to voice data;
Data access unit, for preserving described voice data; Memory element in this data access unit is solid-state electronic storage chip.
2. audio recording system according to claim 1, is characterized in that,
Described audio recording system also comprises power supply unit, described power supply unit comprises power failure detection circuit, energy-storage travelling wave tube and power generation module, described energy-storage travelling wave tube is for detecting that at described power failure detection circuit the externally fed of described power supply unit interrupts, to described collection storage unit power supply; Power generation module is used for receiving externally fed and to described audio recording system power supply; Described power supply unit also for sending signal to described collection storage unit in the situation that described externally fed interrupts.
3. audio recording system according to claim 2, is characterized in that, described energy-storage travelling wave tube is capacitor, and its capacitance is greater than 2F.
4. according to the audio recording system described in claim 1,2 or 3, it is characterized in that, between described data access unit and described collection storage unit, be connected with nine kinds of needles interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420329056.7U CN204010061U (en) | 2014-06-19 | 2014-06-19 | A kind of audio recording system for aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420329056.7U CN204010061U (en) | 2014-06-19 | 2014-06-19 | A kind of audio recording system for aircraft |
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| CN204010061U true CN204010061U (en) | 2014-12-10 |
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| CN201420329056.7U Active CN204010061U (en) | 2014-06-19 | 2014-06-19 | A kind of audio recording system for aircraft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104050733A (en) * | 2014-06-19 | 2014-09-17 | 北京华航海鹰新技术开发有限责任公司 | Audio recording system for aircraft |
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2014
- 2014-06-19 CN CN201420329056.7U patent/CN204010061U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104050733A (en) * | 2014-06-19 | 2014-09-17 | 北京华航海鹰新技术开发有限责任公司 | Audio recording system for aircraft |
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