CN109151664B - Dual-mode light guide type audio monitor - Google Patents
Dual-mode light guide type audio monitor Download PDFInfo
- Publication number
- CN109151664B CN109151664B CN201811053930.8A CN201811053930A CN109151664B CN 109151664 B CN109151664 B CN 109151664B CN 201811053930 A CN201811053930 A CN 201811053930A CN 109151664 B CN109151664 B CN 109151664B
- Authority
- CN
- China
- Prior art keywords
- circuit
- audio
- mode
- light guide
- dual
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Audible And Visible Signals (AREA)
Abstract
The invention relates to a dual-mode light guide type audio monitor, which comprises: the system comprises an audio monitoring module, a panel component, a rack component and a dual-mode light guide plate, wherein in the audio monitoring module, a power supply overcurrent protection circuit and a power supply filter circuit carry out overcurrent protection and filter processing on a power supply on the machine; the power supply conversion circuit adopts a two-stage fixed three-terminal voltage stabilizer to regulate the voltage of a power supply; the audio pre-amplifying circuit controls the variable gain and the noise threshold of the audio signal input by the microphone; the operational amplification circuit amplifies the audio signal by using a bipolar low-noise high-speed four-operational amplifier; the voltage comparison circuit carries out multistage voltage division comparison on the input audio signal; the volume display control circuit controls the LED indicator lamps corresponding to the partial pressure comparison result on the dual-mode light guide plate to emit light, so that volume indication is achieved, and the dual-mode light guide plate is provided with a first light guide mode and a second light guide mode.
Description
Technical Field
The present invention relates to an audio monitor, and more particularly, to a dual mode light guide type audio monitor.
Background
For the acquisition of most of the audio signals of the airplane cockpit, airborne acquisition equipment is used for directly acquiring and processing the audio signals of the cockpit, and the acquisition equipment is mostly arranged in an equipment cockpit, so that the transmission distance of the audio signals is long, and the signal distortion is large; the sound acquisition equipment in the cabin has no functions of real-time monitoring and volume indication, no direct judgment basis exists for whether the equipment works normally, and a quick-release mounting mode is not adopted, so that the equipment is not easy to maintain; the device also has no light guide or single light guide mode and lacks man-machine efficacy.
Disclosure of Invention
The purpose of the invention is as follows:
the dual-mode light guide type audio monitor is provided, obtains and monitors an audio signal of an airplane cabin in real time, adopts dual-mode light guide, and provides corresponding green light illumination and blue-white light illumination under the environmental conditions of night and day.
The technical scheme is as follows:
the utility model provides a double mode leaded light type audio frequency watch-dog, it constitutes including audio monitoring module, panel components, frame parts and double mode light guide plate, audio monitoring module is connected with frame parts, and double mode light guide plate is connected with panel components, and frame parts are connected with panel components, and each part makes up into a whole jointly.
The audio monitoring module can comprise a power supply overcurrent protection circuit, a power supply filter circuit, a power supply conversion circuit, an audio preamplifier circuit, an operational amplifier circuit, an audio output voltage comparison circuit, a volume display control circuit and a microphone input circuit. The power supply overcurrent protection circuit is connected with the power supply filter circuit, overcurrent protection and filtering processing are carried out on a power supply, the power supply filter circuit is connected with the power supply conversion circuit, two-stage conversion is carried out on the power supply, a fixed three-terminal voltage regulator is adopted to regulate the voltage of the input power supply to +12V, then a fixed three-terminal voltage regulator is adopted to regulate the voltage of the input +12V to +5V, and finally power supply voltages, +12V and +5V are formed on the power supply conversion audio monitoring module, so that the use of other circuits on the audio monitoring module is met. The microphone input circuit is connected with the audio preamplifier circuit, variable gain and noise threshold control are carried out on audio signals input by the microphone to form a voice voltage control circuit, the audio preamplifier circuit is connected with the operational amplifier circuit, the operational amplifier selects bipolar low-noise high-speed four-operational amplifier, and the output stage has strong load driving capacity. The operational amplifier circuit is connected with the voltage comparison circuit, amplifies and drives the input audio monitoring signal, the voltage comparison circuit is connected with the volume display control circuit, multi-stage voltage division comparison is carried out on the audio signal, and each stage of voltage division comparison output corresponds to an LED volume indicator lamp on the dual-mode light guide plate.
The dual mode light guide plate may include an indicator lamp driving circuit, a first indicator lamp circuit, a second indicator lamp circuit, and a volume indicator lamp. The indicating lamp driving circuit can be connected with a volume display control circuit of the audio monitoring module to receive a volume control signal, and is connected with the volume indicating lamp to realize volume indication; the first indicator light circuit drives the first indicator light in a first light guide mode, so that the dual-mode light guide plate displays a first color; the second indicator light circuit drives the second indicator light in a second light guide mode, so that the dual-mode light guide plate displays a second color, the first light guide mode is a green light mode, and the second light guide mode is a blue-white light mode, but not limited to the green light mode and the blue-white light mode, and other color modes, such as a red light mode, are also possible.
The panel component can comprise an earphone socket and a built-in microphone, wherein the earphone socket is used for receiving audio monitoring signals output by the audio monitoring module, and the built-in microphone is used for picking up sound signals and sending the sound signals to the audio monitoring module for signal processing; the frame component belongs to a structural component, and is fixedly connected with the audio monitoring module, the panel component and the dual-mode light guide plate through screws in a rigid mode, so that the components are combined into the dual-mode light guide type audio monitor.
Has the advantages that:
the dual-mode light-guiding type audio monitor can acquire cockpit audio signals without a large amount of additional investment and any human intervention after adopting a wide aircraft cockpit audio signal pickup technology, establishes a direct, reliable and rapid point-to-point audio signal exchange channel between an aircraft cockpit and the on-board rear-end acquisition and recording equipment, effectively reduces the audio signal distribution time and transfer link, reduces the requirements of ground maintenance personnel and the cost of supporting equipment, and has obvious advantages in the aspects of reducing the aircraft operation cost, improving the aircraft maintenance efficiency, reducing the maintenance workload and the like. The electromagnetic compatibility type electromagnetic vibration damper has the characteristics of small overall dimension, light weight, good electromagnetic compatibility, strong vibration resistance value and the like, and has the following main beneficial effects:
1) timeliness of cabin audio signal conversion
The dual-mode light guide type audio monitor is arranged in an aircraft cockpit, obtains an audio signal of the cockpit, converts the audio signal into an electric signal in real time, adopts a voice voltage control circuit controlled by variable gain and a noise threshold, improves the conversion efficiency of the audio signal, reduces noise, can be used for collecting the audio signal after conversion in real time, and reduces the loss of the signal in the transmission process.
2) Friendly human-computer interface and convenient maintenance
The dual-mode light guide type audio monitor can be suitable for different environmental conditions, adopts dual-mode light guide, can use green light illumination at night, can use blue and white light illumination in the daytime, and can adjust the brightness through power supply voltage at different illumination brightness; the dual-mode light guide plate is provided with a multi-level volume LED indicator lamp which can display the volume of sound in real time, and an earphone (model ECD-36N)) can be inserted into a panel part for sound monitoring, so that whether the dual-mode light guide type audio monitor works normally or not can be directly judged; the dual-mode light guide type audio monitor adopts a universal quick-release mounting mode, is fixed in the aircraft cockpit through the lock catch, and is convenient and quick to detach.
3) Modular design
Each component of the dual-mode light-guide type audio monitor adopts a modular design, the coupling degree between modules is low, standard components are preferentially selected, and the interchangeability and the maintenance efficiency of products are improved.
4) Light and small size, better effect of resisting environmental test conditions
By utilizing the structure of the invention, the dual-mode light guide type audio monitor can realize miniaturization and light weight, for example, the overall dimension is not more than 146mm multiplied by 57mm multiplied by 90mm, the weight is not more than 0.6kg, all modules are rigidly connected and fixed by adopting multi-point screws, and the printed board and electronic components are sprayed with three-proofing paint, so that the tolerance of environmental tests is improved.
Drawings
FIG. 1 is a block diagram illustrating the principles of the present invention;
FIG. 2 is a block diagram illustrating an audio monitoring module of the present invention;
FIG. 3 is a block diagram showing a panel member of the present invention;
fig. 4 is a block diagram illustrating a dual mode light guide plate of the present invention.
Wherein: 1-audio monitoring module, 2-panel component, 3-rack component and 4-dual-mode light guide plate. 101-power overcurrent protection circuit, 102-power filter circuit, 103-power conversion circuit, 104-audio preamplifier circuit, 105-operational amplifier circuit, 106-audio output voltage comparison circuit, 107-volume display control circuit, 108-microphone input circuit. 201-earphone socket, 202-built-in microphone. 401-indicator light driving circuit, 402-green light indicator light circuit, 403-white light indicator light circuit, 404-volume indicator light.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, which refer to fig. 1 to 4.
As shown in fig. 1, the dual mode light guide type audio monitor includes an audio monitoring module 1, a panel member 2, a chassis member 3, and a dual mode light guide plate 4.
As shown in fig. 2, the audio monitoring module includes a power overcurrent protection circuit 101, a power filter circuit 102, a power conversion circuit 103, an audio pre-amplification circuit 104, an operational amplifier circuit 105, an audio output voltage comparison circuit 106, a volume display control circuit 107, and a microphone input circuit 108. The power supply overcurrent protection circuit 101 is connected with the power supply filter circuit 102, overcurrent protection and filtering processing are carried out on +28VDC of a power supply, the power supply filter circuit 102 is connected with the power supply conversion circuit 103, two-stage conversion is carried out on +28VDC power, the +28VDC voltage input is regulated to +12V by adopting the fixed three-terminal regulator LM317, the +12V voltage input is regulated to +5V by adopting the fixed three-terminal regulator LM317, three voltages of +28V, +12V and +5V are finally formed on the power supply conversion audio monitoring module, and the use of other circuits on the audio monitoring module is met. The microphone input circuit 108 is connected with the audio preamplifier circuit 104, and controls the variable gain and the noise threshold of the audio signal input by the microphone to form a voice voltage control circuit, the audio preamplifier circuit 104 is connected with the operational amplifier circuit 105, the operational amplifier is selected from bipolar low-noise high-speed four-operational amplifier, and the output stage has strong load driving capability. The operational amplifier circuit 105 is connected to the voltage comparator circuit 106, and amplifies and drives the input audio monitoring signal, the voltage comparator circuit 106 is connected to the volume display control circuit 107, and performs 10-level voltage division comparison on the audio signal, and each level of voltage division comparison outputs an LED indicator corresponding to the dual-mode light guide plate, thereby implementing volume indication.
As shown in fig. 3, the dual mode light guide plate includes an indicator lamp driving circuit 401, a green indicator lamp circuit 402, a blue-white indicator lamp circuit 403, and a volume indicator lamp 404. The indicator light driving circuit 401 is connected with the volume display control circuit 107 of the audio monitoring module to receive a volume control signal, and the indicator light driving circuit 401 is connected with the volume indicator light 404 to realize volume indication; the first indicator lamp circuit drives the first indicator lamp in a green light mode, so that the dual-mode light guide plate displays green light; the second indicator light circuit drives the second indicator light in a blue-white light mode, so that the dual-mode light guide plate displays blue-white light. The brightness of the dual-mode light guide plate can be adjusted through different voltages.
As shown in fig. 4, the panel assembly includes an earphone socket 201 and a built-in microphone 202, the earphone socket 201 is used for receiving the audio monitoring signal output by the audio monitoring module 1, and the built-in microphone 202 is used for picking up the environmental sound signal and sending it to the audio monitoring module 1 for signal processing.
Claims (4)
1. A dual-mode light-guide type audio monitor is arranged in an aircraft cockpit, a point-to-point audio signal exchange channel is established between the aircraft cockpit and an onboard rear-end acquisition and recording device, and the dual-mode light-guide type audio monitor comprises: the system comprises an audio monitoring module (1), a panel component (2), a rack component (3) and a dual-mode light guide plate (4) which are all in modular design, wherein the audio monitoring module (1) is connected with the rack component (3), the dual-mode light guide plate (4) is connected with the panel component (2), the rack component (3) is connected with the panel component (2),
the audio monitoring module (1) comprises a power supply overcurrent protection circuit (101), a power supply filter circuit (102), a power supply conversion circuit (103), an audio preamplifier circuit (104), an operational amplifier circuit (105), an audio output voltage comparison circuit (106), a volume display control circuit (107) and a microphone input circuit (108);
the power supply overcurrent protection circuit (101) is connected with the power supply filter circuit (102) and is used for carrying out overcurrent protection and filtering processing on the power supply; the power supply filter circuit (102) is connected with the power supply conversion circuit (103), and the power supply conversion circuit (103) adopts a two-stage fixed three-terminal voltage regulator to regulate the voltage of a power supply; the microphone input circuit (108) is connected with the audio preamplification circuit (104) to form a voice voltage control circuit, and the voice voltage control circuit controls the variable gain and the noise threshold of the audio signal input by the microphone; the audio pre-amplifier circuit (104) is connected with the operational amplifier circuit (105), and the operational amplifier circuit (105) amplifies an audio signal by using a bipolar low-noise high-speed four-operational amplifier; the operational amplification circuit (105) is connected with the voltage comparison circuit (106), and the voltage comparison circuit (106) carries out multi-stage voltage division comparison on the input audio signal; the voltage comparison circuit (106) is connected with the volume display control circuit (107), and the volume display control circuit (107) controls the LED indicator lamp corresponding to the partial pressure comparison result on the dual-mode light guide plate to emit light, so that volume indication is realized; and is
The dual-mode light guide plate (4) is provided with a first light guide mode and a second light guide mode.
2. A dual mode light guided audio monitor according to claim 1, wherein the dual mode light guide plate (4) comprises an indicator light driving circuit (401), a first indicator light circuit (402), a second indicator light circuit (403), and a volume indicator light (404), the indicator light driving circuit (401) is connected to the volume display control circuit (107) of the audio monitoring module (1) to receive a volume control signal, the indicator light driving circuit (401) is connected to the volume indicator light (404) to achieve volume indication, the first indicator light circuit (402) drives the first indicator light in the first light guide mode so that the dual mode light guide plate displays a first color, and the second indicator light circuit (403) drives the second indicator light in the second light guide mode so that the dual mode light guide plate displays a second color.
3. The dual mode light guided audio monitor according to claim 1 or 2, wherein said first light guided mode is a green light mode and said second light guided mode is a blue-white light mode.
4. The dual mode light guided audio monitor of claim 1, wherein: the panel component (2) comprises an earphone socket (201) and a built-in microphone (202), the earphone socket (201) is used for receiving audio monitoring signals output by the audio monitoring module (1), and the built-in microphone (202) is used for picking up sound signals and sending the sound signals to the audio monitoring module (1) for signal processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811053930.8A CN109151664B (en) | 2018-09-11 | 2018-09-11 | Dual-mode light guide type audio monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811053930.8A CN109151664B (en) | 2018-09-11 | 2018-09-11 | Dual-mode light guide type audio monitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109151664A CN109151664A (en) | 2019-01-04 |
| CN109151664B true CN109151664B (en) | 2021-04-20 |
Family
ID=64824572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811053930.8A Active CN109151664B (en) | 2018-09-11 | 2018-09-11 | Dual-mode light guide type audio monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109151664B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916108A (en) * | 2010-08-31 | 2010-12-15 | 上海交通大学 | Automation device for use in civil aircraft environment control system function test |
| CN106600747A (en) * | 2016-10-19 | 2017-04-26 | 广东容祺智能科技有限公司 | Aircraft-real-time-state monitoring black box |
| CN206268958U (en) * | 2016-12-19 | 2017-06-20 | 江门市力瓦士科技有限公司 | Intelligent ceiling lamp |
| CN207199297U (en) * | 2017-09-13 | 2018-04-06 | 陕西千山航空电子有限责任公司 | A kind of Voice Surveillance device |
| CN207541941U (en) * | 2017-08-30 | 2018-06-26 | 陕西千山航空电子有限责任公司 | A kind of high definition audio acquisition monitoring circuit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6417435B2 (en) * | 2000-02-28 | 2002-07-09 | Constantin B. Chantzis | Audio-acoustic proficiency testing device |
| US7766511B2 (en) * | 2006-04-24 | 2010-08-03 | Integrated Illumination Systems | LED light fixture |
| CN201514684U (en) * | 2009-06-30 | 2010-06-23 | 张烜晧 | Multi-path audible and visual alarm equipment of video-frequency/audio-frequency broadcasting control machine room |
| CN102426757A (en) * | 2011-12-02 | 2012-04-25 | 上海大学 | Safety driving monitoring system based on mode identification and method thereof |
| JP6047811B2 (en) * | 2013-05-27 | 2016-12-21 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Filter, filter manufacturing method, and laser wavelength monitoring apparatus |
| KR20150141113A (en) * | 2014-11-19 | 2015-12-17 | 이승철 | The remote tuning broadcasting device monitored in real time and broadcasting system of earthquake-proof |
| JP6179577B2 (en) * | 2015-11-18 | 2017-08-16 | 株式会社三洋物産 | Game machine |
| CN107770917A (en) * | 2017-11-21 | 2018-03-06 | 苏州晶品新材料股份有限公司 | Adjustable type LED based on audio signal |
-
2018
- 2018-09-11 CN CN201811053930.8A patent/CN109151664B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916108A (en) * | 2010-08-31 | 2010-12-15 | 上海交通大学 | Automation device for use in civil aircraft environment control system function test |
| CN106600747A (en) * | 2016-10-19 | 2017-04-26 | 广东容祺智能科技有限公司 | Aircraft-real-time-state monitoring black box |
| CN206268958U (en) * | 2016-12-19 | 2017-06-20 | 江门市力瓦士科技有限公司 | Intelligent ceiling lamp |
| CN207541941U (en) * | 2017-08-30 | 2018-06-26 | 陕西千山航空电子有限责任公司 | A kind of high definition audio acquisition monitoring circuit |
| CN207199297U (en) * | 2017-09-13 | 2018-04-06 | 陕西千山航空电子有限责任公司 | A kind of Voice Surveillance device |
Non-Patent Citations (1)
| Title |
|---|
| 具有压缩和噪声门的低噪声模拟MEMS麦克风和前置放大器电路功能与优势;EEWORLD;《http://news.eeworld.com.cn/MEMS/2013/0816/article_1448.html》;20130816;第1-5页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109151664A (en) | 2019-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109151664B (en) | Dual-mode light guide type audio monitor | |
| CN111048991A (en) | System and method for driving semiconductor laser based on DCDC power module or chip | |
| CN2814482Y (en) | Intelligent monitoring power supply | |
| CN207199297U (en) | A kind of Voice Surveillance device | |
| CN101404762A (en) | Spacing laser audio/video transmission system | |
| CN103037588A (en) | Novel type global function aircraft outer lighting controller | |
| CN202738071U (en) | Microphone | |
| CN210958696U (en) | Unmanned aerial vehicle-mounted real-time calling system capable of being rapidly disassembled, assembled and replaced | |
| CN204741498U (en) | A interface arrangement for internet protocol camera | |
| CN106785358A (en) | A kind of automobile-used gps antenna | |
| CN201265786Y (en) | Respiration lamp apparatus | |
| CN115801092B (en) | Onboard communication nacelle for training | |
| CN207541941U (en) | A kind of high definition audio acquisition monitoring circuit | |
| CN112991650A (en) | Integrated design system of equipment belonging to light alarm system | |
| CN216596450U (en) | Multifunctional audible and visual alarm based on centralized control operation system | |
| CN103401518A (en) | Digital power amplifier unit of passenger compartment | |
| CN215867982U (en) | 5G vehicle-mounted central control integrated circuit | |
| CN219223633U (en) | Geographic information remote sensing positioning device | |
| CN220964845U (en) | Transient response self-adaptive digital filtering radio frequency chip | |
| CN216954839U (en) | Standardized vibration signal acquisition board card | |
| CN217835643U (en) | Integrated vehicle-mounted system of subway train | |
| CN219876062U (en) | Automatic regulating step-up and step-down circuit of electric car sound equipment capable of saving energy and reducing consumption | |
| CN219394831U (en) | Device based on double-optical-fiber power supply and communication and vehicle-mounted communication system | |
| CN210578964U (en) | Radio station master control subassembly | |
| CN220491245U (en) | Acquisition computer appearance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |