CN113438766B - Automobile headlight based on visible light communication technology - Google Patents
Automobile headlight based on visible light communication technology Download PDFInfo
- Publication number
- CN113438766B CN113438766B CN202110783235.2A CN202110783235A CN113438766B CN 113438766 B CN113438766 B CN 113438766B CN 202110783235 A CN202110783235 A CN 202110783235A CN 113438766 B CN113438766 B CN 113438766B
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- signal
- module
- automobile
- visible light
- optical signal
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
- F21V21/30—Pivoted housings or frames
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/185—Controlling the light source by remote control via power line carrier transmission
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2103/00—Exterior vehicle lighting devices for signalling purposes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/30—Semiconductor lasers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention discloses an automobile headlight based on a visible light communication technology, which relates to the field of automobile communication and comprises an information sending component and an information receiving component; the information sending component comprises a vehicle-mounted microphone, a signal modulation module, an optical signal emitting module and a light emitting element, the information receiving component comprises an optical signal receiving module, a signal demodulation module and a vehicle-mounted loudspeaker, the light emitting element comprises an automobile lamp and a laser emitter, the laser emitter comprises a rotary table, a base, a fixed plate, a motor and a beam expansion disc, the optical communication system is arranged on an automobile, voice information of a driver can be sent to the vehicle-mounted loudspeaker of other drivers by taking light as a carrier, so that barrier-free communication is realized, in order to avoid the limitation of the irradiation angle of the front and rear lamps of the automobile, a rotatable laser generator is additionally arranged on the roof of the automobile, and the requirement of multi-azimuth communication of the automobile is met.
Description
Technical Field
The invention relates to the field of automobile communication, in particular to an automobile headlight based on a visible light communication technology.
Background
In the running process of automobiles, some emergency situations can occur in many automobiles, and drivers are not easy to perceive, such as oil leakage of an oil tank, falling of goods, foreign matters mounting, abnormal automobile conditions, abnormal front road conditions and the like, but the opposite parties are difficult to perceive through whistling, effective communication between the drivers cannot be carried out, and particularly at high speed, the abnormal automobile conditions can be dangerous if not timely found, so that a communication system capable of enabling drivers to communicate without barriers is needed, and the interactivity and safety of running are improved.
The visible light wireless communication uses an LED as a carrier, and on the premise of not influencing normal illumination, the information is modulated by a modulator, then a digital signal is carried on the LED lamp, and the LED is used for transmitting information in a rapid light pulse wireless mode. The receiving end receives the visible light containing information by using a photoelectric converter (PD), converts the visible light into an electric signal, then filters, shapes and amplifies the electric signal, and demodulates corresponding analog information from the electric signal. The LED emits rapid pulses of light that are imperceptible to the human eye and therefore do not affect normal illumination.
Disclosure of Invention
The invention aims to provide an automobile headlight based on a visible light communication technology so as to solve the problems in the prior art.
An automobile headlight based on a visible light communication technology comprises an information sending component and an information receiving component;
the information sending component comprises a vehicle-mounted microphone, a signal modulation module, an optical signal emitting module and a light emitting element, wherein the vehicle-mounted microphone is connected with the signal modulation module, and the signal modulation module converts an audio signal into a digital modulation signal; the signal modulation module is connected with the optical signal transmitting module, and the signal transmitting module receives the modulated digital signal so as to control the brightness change of the light-emitting element;
the information receiving assembly comprises an optical signal receiving module, a signal demodulation module and a vehicle-mounted loudspeaker, wherein the optical signal receiving module is used for converting an optical signal of a light-emitting element into a digital signal, the input end of the signal demodulation module is connected with the output end of the optical signal receiving module, the signal demodulation module is used for demodulating a digital modulation signal output by the optical signal receiving module into a digital baseband signal, and the vehicle-mounted loudspeaker is connected with the signal demodulation module and used for expressing the modulated signal in an audio mode;
the light-emitting element comprises an automobile lamp and a laser emitter, the laser emitter comprises a rotary table, a base, a fixing plate, a motor and a beam expanding disc, the rotary table is rotationally connected with the base through a first unidirectional bearing, the base is fixedly connected to a roof, the fixing plate is rotationally connected to the center of the rotary table through a second unidirectional bearing, a laser tube is fixedly connected to the fixing plate, the beam expanding disc is fixedly connected to the rotary table, and a plurality of beam expanding lenses are arranged on the beam expanding disc at equal intervals.
Preferably, the signal modulation module and the signal demodulation module both comprise a vehicle-mounted network and an FPGA module, the vehicle-mounted network is used for realizing network communication with a vehicle-mounted microphone and a loudspeaker to transfer data, and the FPGA module is used for modulating and demodulating signals.
Preferably, the optical signal transmitting module comprises a D/a converter and an LED driving circuit, wherein the output end of the D/a converter is connected with the input end of the LED driving circuit, and the output end of the LED driving circuit is connected with the light emitting element.
Preferably, the optical signal receiving module comprises a photoelectric detector, a pre-amplifying circuit, a low-pass filter, a main amplifying circuit and an A/D converter, wherein the output end of the photoelectric detector is connected with the input end of the pre-amplifying circuit, the output end of the pre-amplifying circuit is connected with the input end of the low-pass filter, the output end of the low-pass filter is connected with the input end of the main amplifying circuit, and the output end of the main amplifying circuit is also connected with the A/D converter.
Preferably, the beam expansion ranges of the plurality of beam expanders are sequentially increased.
Preferably, an extension line of the laser ray of the laser tube passes through the rotation center of the turntable, and the axis of the beam expander points to the rotation center of the turntable.
Preferably, the locking direction of the first unidirectional bearing is opposite to that of the second unidirectional bearing.
The invention has the advantages that:
the optical communication system is arranged on the automobile, and voice information of a driver can be sent to vehicle-mounted speakers of other drivers by taking light as a carrier, so that barrier-free communication is realized.
In order to avoid the limitation of the irradiation angle of the front and rear lamps of the automobile, a rotatable laser generator is additionally arranged on the top of the automobile, and the motor can independently drive the laser tube to rotate through the rotation limiting function of two unidirectional bearings with different locking directions, so that the beam expander with different beam expanding ranges is selected to meet the light signal emission requirement, and the laser and the beam expander can be synchronously driven to synchronously rotate to transmit light signals in different directions, thereby meeting the requirement of multi-azimuth communication of the automobile.
Drawings
FIG. 1 is a schematic diagram of a system of the present invention;
FIG. 2 is a schematic diagram of a laser transmitter;
fig. 3 is a partial structural cross-sectional view of a laser transmitter.
In the figure: the laser beam expander comprises a 1-turntable, a 2-base, a 3-fixed plate, a 4-motor, a 5-beam expanding disc, a 6-one-way bearing I, a 7-one-way bearing II, an 8-laser tube and a 9-beam expanding lens.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
An automobile headlight based on a visible light communication technology comprises an information sending component and an information receiving component;
the information receiving assembly comprises an optical signal receiving module, a signal demodulation module and a vehicle-mounted loudspeaker, wherein the optical signal receiving module is used for converting an optical signal of the light-emitting element into a digital signal, the input end of the signal demodulation module is connected with the output end of the optical signal receiving module, the signal demodulation module is used for demodulating a digital modulation signal output by the optical signal receiving module into a digital baseband signal, and the vehicle-mounted loudspeaker is connected with the signal demodulation module and used for expressing the modulated signal in an audio mode.
The information sending component comprises a vehicle-mounted microphone, a signal modulation module, an optical signal emitting module and a light emitting element, wherein the vehicle-mounted microphone is connected with the signal modulation module, and the signal modulation module converts an audio signal into a digital modulation signal; the signal modulation module is connected with the optical signal transmitting module, and the signal transmitting module receives the modulated digital signal so as to control the brightness change of the light-emitting element.
The light-emitting element comprises an automobile lamp and a laser emitter, wherein the laser emitter comprises a rotary table 1, a base 2, a fixed plate 3, a motor 4 and a beam expanding disc 5, the rotary table 1 is rotationally connected with the base 2 through a first unidirectional bearing 6, the fixed plate 3 is rotationally connected with the center of the rotary table 1 through a second unidirectional bearing 7, a laser tube 8 is fixedly connected to the fixed plate 3, the beam expanding disc 5 is fixedly connected to the rotary table 1, a plurality of beam expanding lenses 9 are arranged on the beam expanding disc 5 at equal intervals, and the beam expanding range of the plurality of beam expanding lenses 9 is sequentially increased. The beam expansion range of each beam expander 9 is different, so that a laser transmitter can conveniently select a proper beam expander according to actual conditions.
In this embodiment, the signal modulation module and the signal demodulation module both include a vehicle-mounted network and an FPGA module, where the vehicle-mounted network is used to communicate with the vehicle-mounted microphone and the speaker to transfer data, and the FPGA module is used to modulate and demodulate signals.
In this embodiment, the optical signal emitting module includes a D/a converter and an LED driving circuit, where an output end of the D/a converter is connected to an input end of the LED driving circuit, and an output end of the LED driving circuit is connected to the light emitting element. The D/A converter is used for converting the digital signal into an analog electric signal, and the LED driving circuit is used for driving the light-emitting element to realize brightness change according to the analog electric signal.
In this embodiment, the optical signal receiving module includes a photodetector, a pre-amplifying circuit, a low-pass filter, a main amplifying circuit, and an a/D converter, where an output end of the photodetector is connected to an input end of the pre-amplifying circuit, an output end of the pre-amplifying circuit is connected to an input end of the low-pass filter, an output end of the low-pass filter is connected to an input end of the main amplifying circuit, and an output end of the main amplifying circuit is further connected to the a/D converter.
The photoelectric detector is used for receiving the optical signals of the light emitting element, the main function of the preamplifier is to convert the weak current pulse signals detected by the photoelectric detector into required voltage pulse signals, and the main amplifying circuit is used for adjusting the amplitude and the phase of the voltage signals.
In this embodiment, the extension line of the laser beam of the laser tube 8 passes through the center of rotation of the turntable 1, and the axis of the beam expander 9 is directed toward the center of rotation of the turntable 1. Ensuring that the laser tube 8 can be kept on the same axis with the beam expander 9 when rotating to a certain position along with the fixed plate 3.
In this embodiment, the locking direction of the first unidirectional bearing 6 is opposite to that of the second unidirectional bearing 7. This ensures that the fixed plate 3 can rotate alone in one direction or can rotate the turntable 1 in the other direction.
The working process and the principle thereof are as follows:
when a driver needs to send information to other automobiles, voice information is firstly converted into digital signals through the vehicle-mounted microphone, and because the original signals transmitted from the vehicle-mounted microphone have lower frequency components and are not suitable for being transmitted in a wireless channel, the baseband signals are required to be modulated onto a carrier wave by the signal modulation module, so that better signals are transmitted, the digital signals are converted into analog electric signals through the D/A converter, the LED driving circuit drives the luminous element to be switched on or off according to the analog electric signals, namely the automobile lamp and the laser tube 8 are controlled to be switched on or off, the luminous element emits light to represent 1 in a binary system, and the luminous element emits light to be switched off to represent 0 in the binary system.
The light signals of the automobile lamp and the laser tube 8 are irradiated to the photoelectric detector through the lens and the optical filter, so that the light signals are converted into electric signals, then weak current signals are converted into needed voltage signals through the pre-amplifying circuit and amplified, then the high-frequency noise is filtered by the low-pass filter, the amplitude of the voltage signals is improved to a certain extent after the light signals pass through the pre-amplifying circuit, but the phase is overturned, and finally the amplitude and the phase of the voltage signals are adjusted through the main amplifier, so that the signals are further amplified.
Because the irradiation angle and the range of the automobile lamp have certain limitations, a laser emitter is additionally arranged on the roof. When the signal transmission is needed to be carried out on a small-range area, the motor 4 drives the fixed plate 3 to rotate anticlockwise, and the inner ring and the outer ring can rotate freely due to the fact that the unidirectional bearing I6 rotates anticlockwise. At this time, the fixed plate 3 and the rotary table 1 slide, no transmission force is generated, the inner ring and the outer ring of the second unidirectional bearing 7 are locked, and the rotary table 1 can only rotate clockwise under the limiting action of the second unidirectional bearing 7, so that the rotary table 1 is kept still. The fixed plate 3 can rotate anticlockwise under the drive of the motor 4, so that the laser tube 8 can rotate to a position coaxial with the beam expander 9 in a proper beam expanding range, the beam expander 9 is used for changing the diameter and the divergence angle of a laser beam, focusing is realized, energy loss of laser during irradiation and transmission is reduced, and anti-interference capability is improved. The motor 4 rotates clockwise, the inner ring and the outer ring of the first unidirectional bearing 6 are locked, the inner ring and the outer ring of the second unidirectional bearing 7 rotate freely, the fixed plate 3 is fixedly connected with the turntable 1, the turntable 1 is rotationally connected with the base 2, and at the moment, the fixed plate 3 can drive the turntable 1 to rotate synchronously, so that optical signals can be transmitted to automobiles forming different angles with the automobile, the transmission range of optical communication is improved, the usability of the automobile is greatly improved, and the automobile can be communicated with the automobile at any position around.
Based on the above: the optical communication system is arranged on the automobile, and voice information of a driver can be sent to vehicle-mounted speakers of other drivers by taking light as a carrier, so that barrier-free communication is realized.
In order to avoid the limitation of the irradiation angle of the front and rear lamps of the automobile, a rotatable laser generator is additionally arranged on the top of the automobile, so that the requirement of multi-azimuth communication of the automobile is met.
It will be appreciated by those skilled in the art that the present invention can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the invention or equivalents thereto are intended to be embraced therein.
Claims (7)
1. The automobile headlight based on the visible light communication technology is characterized by comprising an information sending component and an information receiving component;
the information sending component comprises a vehicle-mounted microphone, a signal modulation module, an optical signal emitting module and a light emitting element, wherein the vehicle-mounted microphone is connected with the signal modulation module, and the signal modulation module converts an audio signal into a digital modulation signal; the signal modulation module is connected with the optical signal transmitting module, and the signal transmitting module receives the modulated digital signal so as to control the brightness change of the light-emitting element;
the information receiving assembly comprises an optical signal receiving module, a signal demodulation module and a vehicle-mounted loudspeaker, wherein the optical signal receiving module is used for converting an optical signal of a light-emitting element into a digital signal, the input end of the signal demodulation module is connected with the output end of the optical signal receiving module, the signal demodulation module is used for demodulating a digital modulation signal output by the optical signal receiving module into a digital baseband signal, and the vehicle-mounted loudspeaker is connected with the signal demodulation module and used for expressing the modulated signal in an audio mode;
the light-emitting component comprises an automobile lamp and a laser emitter, the laser emitter comprises a rotary table (1), a base (2), a fixing plate (3), a motor (4) and a beam expansion disc (5), the rotary table (1) is rotationally connected with the base (2) through a first one-way bearing (6), the base (2) is fixedly connected to a roof, the fixing plate (3) is rotationally connected to the center of the rotary table (1) through a second one-way bearing (7), a laser tube (8) is fixedly connected to the fixing plate (3), the beam expansion disc (5) is fixedly connected to the rotary table (1), and a plurality of beam expansion lenses (9) are equidistantly arranged on the beam expansion disc (5).
2. The automobile headlamp based on the visible light communication technology according to claim 1, wherein the signal modulation module and the signal demodulation module comprise an on-board network and an FPGA module, the on-board network is used for realizing network communication with an on-board microphone and a loudspeaker to transfer data, and the FPGA module is used for modulating and demodulating signals.
3. The automobile headlight based on the visible light communication technology according to claim 1, wherein the light signal transmitting module comprises a D/a converter and an LED driving circuit, an output end of the D/a converter is connected with an input end of the LED driving circuit, an output end of the LED driving circuit is connected with a light emitting element, the D/a converter is used for converting a digital signal into an analog electric signal, and the LED driving circuit is used for driving the light emitting element to realize brightness change according to the analog electric signal.
4. The automobile headlight based on the visible light communication technology according to claim 1, wherein the optical signal receiving module comprises a photoelectric detector, a pre-amplifying circuit, a low-pass filter, a main amplifying circuit and an a/D converter, wherein an output end of the photoelectric detector is connected with an input end of the pre-amplifying circuit, an output end of the pre-amplifying circuit is connected with an input end of the low-pass filter, an output end of the low-pass filter is connected with an input end of the main amplifying circuit, and an output end of the main amplifying circuit is further connected with the a/D converter.
5. The automotive headlamp based on the visible light communication technology according to claim 1, wherein the beam expansion ranges of the plurality of beam expansion lenses (9) are sequentially increased.
6. The automobile headlight based on the visible light communication technology according to claim 1, characterized in that an extension line of the laser ray of the laser tube (8) passes through the center of revolution of the turntable (1), and that the axis of the beam expander (9) is directed towards the center of revolution of the turntable (1).
7. The automobile headlight based on the visible light communication technology according to claim 1, wherein the one-way bearing I (6) and the two-way bearing II (7) are locked in opposite directions.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110783235.2A CN113438766B (en) | 2021-07-12 | 2021-07-12 | Automobile headlight based on visible light communication technology |
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| CN202110783235.2A CN113438766B (en) | 2021-07-12 | 2021-07-12 | Automobile headlight based on visible light communication technology |
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| CN113438766A CN113438766A (en) | 2021-09-24 |
| CN113438766B true CN113438766B (en) | 2023-08-25 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1165961A (en) * | 1995-10-31 | 1997-11-26 | 富士通株式会社 | Optical device having optical film with incident angle thereupon variable |
| JPH1146325A (en) * | 1997-07-25 | 1999-02-16 | Tec Corp | Panorama image-pickup device |
| CN101053924A (en) * | 2007-05-24 | 2007-10-17 | 上海交通大学 | Beam splitting type laser roughing modulation device |
| CN102013174A (en) * | 2010-11-18 | 2011-04-13 | 华东理工大学 | Vehicle collision warning system based on optical communication |
| CN102608764A (en) * | 2012-03-31 | 2012-07-25 | 中国科学院光电技术研究所 | Multi-beam-hole splicing and synthesizing system based on stable control of light beam directing |
| CN104485993A (en) * | 2014-11-25 | 2015-04-01 | 南昌大学 | Vehicular visible light wireless digital voice communication system |
| CN105409140A (en) * | 2014-04-22 | 2016-03-16 | 华为技术有限公司 | Optical communication apparatus and method |
| CN206501774U (en) * | 2016-12-30 | 2017-09-19 | 赵恩龙 | Intelligent overhead light device and hackney vehicle and system containing the intelligent overhead light device |
| CN108270486A (en) * | 2017-12-22 | 2018-07-10 | 西安空间无线电技术研究所 | A kind of novel optical communication system and method suitable for rotary joint |
| CN108572458A (en) * | 2018-04-23 | 2018-09-25 | 长春理工大学 | A kind of cylinder shaped light beam multiple diameter converting means |
-
2021
- 2021-07-12 CN CN202110783235.2A patent/CN113438766B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1165961A (en) * | 1995-10-31 | 1997-11-26 | 富士通株式会社 | Optical device having optical film with incident angle thereupon variable |
| JPH1146325A (en) * | 1997-07-25 | 1999-02-16 | Tec Corp | Panorama image-pickup device |
| CN101053924A (en) * | 2007-05-24 | 2007-10-17 | 上海交通大学 | Beam splitting type laser roughing modulation device |
| CN102013174A (en) * | 2010-11-18 | 2011-04-13 | 华东理工大学 | Vehicle collision warning system based on optical communication |
| CN102608764A (en) * | 2012-03-31 | 2012-07-25 | 中国科学院光电技术研究所 | Multi-beam-hole splicing and synthesizing system based on stable control of light beam directing |
| CN105409140A (en) * | 2014-04-22 | 2016-03-16 | 华为技术有限公司 | Optical communication apparatus and method |
| CN104485993A (en) * | 2014-11-25 | 2015-04-01 | 南昌大学 | Vehicular visible light wireless digital voice communication system |
| CN206501774U (en) * | 2016-12-30 | 2017-09-19 | 赵恩龙 | Intelligent overhead light device and hackney vehicle and system containing the intelligent overhead light device |
| CN108270486A (en) * | 2017-12-22 | 2018-07-10 | 西安空间无线电技术研究所 | A kind of novel optical communication system and method suitable for rotary joint |
| WO2019119993A1 (en) * | 2017-12-22 | 2019-06-27 | 西安空间无线电技术研究所 | Novel optical communication system and method applicable to rotary joint |
| CN108572458A (en) * | 2018-04-23 | 2018-09-25 | 长春理工大学 | A kind of cylinder shaped light beam multiple diameter converting means |
Non-Patent Citations (1)
| Title |
|---|
| 激光扫描技术在水下光通信中的应用;何宁,周田华;《第十七届全国激光学术会议论文集》;全文 * |
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| CN113438766A (en) | 2021-09-24 |
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