CN110868255A - Flashlight audio communication device based on visible light communication - Google Patents
Flashlight audio communication device based on visible light communication Download PDFInfo
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- CN110868255A CN110868255A CN201910910675.2A CN201910910675A CN110868255A CN 110868255 A CN110868255 A CN 110868255A CN 201910910675 A CN201910910675 A CN 201910910675A CN 110868255 A CN110868255 A CN 110868255A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
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- 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
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
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Abstract
The invention provides a flashlight audio communication device based on visible light communication, which comprises: the flashlight comprises a flashlight body and a control module, wherein the flashlight body comprises a shell, a first lampshade, a second lampshade and an audio input port positioned on the shell, and a first light source is arranged in the first lampshade; the transmitting module is used for receiving first audio information input by a user and converting the first audio information into a first electric signal so as to drive the first light source to emit the first optical signal; the receiving module is used for receiving a second optical signal from the outside and converting the second optical signal into a second electric signal so as to acquire second audio information from the outside; and the control module is used for adjusting the working mode of the flashlight audio communication device. The invention expands the function of the flashlight on one hand, reduces the volume of the visible light communication device on the other hand, realizes the integration of visible light communication and flashlight illumination, and has the advantages of convenient carrying, smooth communication, low cost, realization of large-scale production in short time and the like.
Description
Technical Field
The invention relates to the technical field of visible light communication, in particular to a flashlight audio communication device based on visible light communication.
Background
White Light LEDs (Light Emitting diodes) have the advantages of high brightness, low power consumption, long service life, small size, environmental protection, and the like, and are considered as fourth-generation energy-saving and environment-friendly illumination Light sources. By changing the luminous intensity of the LED, information can be transmitted, namely visible light communication can be carried out. Compared with the traditional radio frequency communication and microwave communication methods, the visible light communication technology has the advantages of high transmitting power, no radio channel occupation, no electromagnetic interference, no electromagnetic radiation, energy conservation and the like, and has wide application prospect and innovation space in the fields of Internet of things, Internet of vehicles, industrial 4.0, safe payment, smart cities, aviation, navigation, subways, high-speed rails, intelligent homes (including outdoor), underground operation, national defense communication, weaponry, electromagnetic sensitive areas and the like.
However, most of the existing visible light communication devices are large in size, single in function and inconvenient to carry, and therefore how to reduce the size of the visible light communication device and expand the functions of the visible light communication device is a technical problem to be solved urgently at present.
Disclosure of Invention
The invention provides a flashlight audio communication device based on visible light communication, which is used for solving the problems of single function and large volume of the existing visible light communication device so as to expand the application field of visible light technology.
In order to solve the above problems, the present invention provides a flashlight audio communication device based on visible light communication, comprising:
the flashlight comprises a flashlight body and a control module, wherein the flashlight body comprises a shell, a first lampshade, a second lampshade and an audio input port positioned on the shell, and a first light source is arranged in the first lampshade;
the transmitting module is connected with the first light source and used for receiving first audio information input by a user and converting the first audio information into a first electric signal so as to drive the first light source to emit the first optical signal;
the receiving module comprises a photoelectric detector positioned in the second lampshade, and is used for receiving a second optical signal from the outside and converting the second optical signal into a second electric signal so as to acquire second audio information from the outside;
and the control module is connected with the sending module, the receiving module and the first light source and used for adjusting the working modes of the audio communication device of the flashlight, wherein the working modes comprise a sending mode, a receiving mode and an illumination mode.
Preferably, the audio input port comprises a microphone port and an earphone port both located on the housing;
the receiving module further comprises a speaker located on the housing, the speaker being configured to play the second audio information.
Preferably, the sending module further includes:
the input end of the input signal selection circuit is connected with the microphone port and the earphone port, and the output end of the input signal selection circuit is connected with the double-path parallel amplifier and is used for selecting the source of the first audio information;
the double-path parallel amplifier is connected with the driving circuit and is used for carrying out double-path parallel amplification on the first audio information;
and the driving circuit is connected with the first light source and used for driving the first light source to emit the first optical signal carrying the first audio information.
Preferably, the receiving module further includes:
the photoelectric conversion circuit is connected with the photoelectric detector and is used for converting the second optical signal into a second electric signal;
the high-pass filter circuit is connected with the photoelectric conversion circuit and is used for carrying out high-pass filter processing on the second electric signal;
the voltage-controlled amplifier is connected with the high-pass filter circuit and is used for amplifying the second electric signal subjected to high-pass filtering;
and the output selection circuit is connected with the voltage-controlled amplifier, the loudspeaker and the earphone port and is used for selecting the output mode of the amplified second electric signal.
Preferably, the receiving module further includes:
and the anti-clipping distortion circuit is positioned between the voltage-controlled amplifier and the output selection circuit and is used for carrying out anti-clipping distortion processing on the amplified second electric signal.
Preferably, the control module includes:
the single chip microcomputer is connected with the control end of the input signal selection circuit, the control end of the output signal selection circuit, the key circuit and the USB serial port conversion circuit and is used for respectively controlling whether the input signal selection circuit and the output signal selection circuit are conducted or not;
a key circuit comprising a selection key located on the housing, the selection key for a user to select an operating mode of the flashlight audio communication device;
and the USB-to-serial port circuit is used for connecting external equipment.
Preferably, the earphone port is used for connecting three sections of earphones and four sections of earphones;
the single chip microcomputer is also connected with the earphone port and used for detecting the number of earphone sections inserted into the earphone port and switching the working mode of the flashlight audio communication device according to the detection result.
Preferably, a second light source is further arranged in the second lampshade, and the second light source is arranged around the periphery of the photoelectric detector.
Preferably, the first light source is a white light emitting diode.
Preferably, the first lampshade is positioned at the end part of the shell and is coaxially arranged with a cavity surrounded by the shell; the housing has a handle thereon, and the second light shade is connected to an end of the handle.
According to the flashlight audio communication device based on visible light communication, the sending module, the receiving module and the control module are additionally arranged in the flashlight, so that the flashlight audio communication device not only can illuminate, but also can send and receive audio information in a visible light mode, and the concealment and the convenience of audio information transmission are improved. The invention expands the functions of the traditional flashlight on one hand, reduces the volume of the visible light communication device on the other hand, realizes the integration of visible light communication and flashlight illumination, and has the advantages of convenient carrying, smooth communication, low cost, realization of large-scale production in short time and the like.
Drawings
FIG. 1 is a schematic structural diagram of a flashlight audio communication device based on visible light communication according to an embodiment of the present invention;
FIG. 2 is a block diagram of a flashlight audio communication device based on visible light communication according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a circuit configuration of a transmitting module according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a circuit structure of a receiving module according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a control module according to an embodiment of the present invention.
Detailed Description
The following describes in detail a specific embodiment of the audio communication device of a flashlight based on visible light communication according to the present invention with reference to the accompanying drawings.
The present embodiment provides a flashlight audio communication device based on visible light communication, fig. 1 is a schematic structural diagram of a flashlight audio communication device based on visible light communication according to an embodiment of the present invention, and fig. 2 is a block structural diagram of a flashlight audio communication device based on visible light communication according to an embodiment of the present invention. As shown in fig. 1 and fig. 2, the flashlight audio communication device based on visible light communication according to the present embodiment includes:
the flashlight comprises a flashlight body and a control circuit, wherein the flashlight body comprises a shell 10, a first lampshade 11, a second lampshade 12 and an audio input port 21 positioned on the shell 10, and a first light source 13 is arranged in the first lampshade 11;
the transmitting module 20 is connected to the first light source 13, and the transmitting module 20 is configured to receive first audio information input by a user and convert the first audio information into a first electrical signal to drive the first light source 13 to emit the first optical signal;
the receiving module 22 comprises a photodetector 14 positioned in the second lampshade 12, and the receiving module 22 is used for receiving a second optical signal from the outside and converting the second optical signal into a second electric signal so as to acquire second audio information from the outside;
and the control module 23 is connected with the sending module 20, the receiving module 22 and the first light source 13, and is used for adjusting the working modes of the audio communication device of the flashlight, wherein the working modes comprise a sending mode, a receiving mode and an illumination mode.
Specifically, the sending mode is that the visible light communication-based flashlight audio communication device sends the first optical signal carrying the first audio information to the outside in a visible light manner, that is, the visible light communication sending function of the sending module 20 is turned on; the receiving mode is that the flashlight audio communication device based on visible light communication receives the second optical signal which is transmitted in the form of visible light, comes from the outside and carries second audio information, that is, the visible light communication receiving function of the receiving module 22 is turned on; the illumination mode is that the flashlight audio communication device based on visible light communication does not send the first audio information and does not receive the second audio information, that is, the visible light communication sending function of the sending module 20 and the visible light communication receiving function of the receiving module 22 are both turned off, and the first light source 13 is used for illumination. In this embodiment, the sending module 20 and/or the receiving module 22 may adopt an OOK modulation scheme.
In other specific embodiments, the control module 23 may control the visible light communication transmitting function of the transmitting module 20 and the visible light communication receiving function of the receiving module 22 to be simultaneously turned on, so as to implement full-duplex visible light communication in which the transmission and the reception of the audio information are synchronized.
In the embodiment, the traditional flashlight is improved, the sending module 20, the receiving module 22 and the control module 23 are additionally arranged in the flashlight, and the first light source 13 originally used for lighting of the flashlight is used for emitting the first light signal carrying the first audio information, so that the concealment, the smoothness and the safety of sending the first audio information are ensured. Meanwhile, the photoelectric detector 14 is additionally arranged in the second lampshade 12, so that the second audio information transmitted in a visible light mode from the outside is received, and the concealment and the safety of receiving the second audio information are ensured; in addition, in the present embodiment, the photodetector 14 is disposed in the second lamp housing 12, so that the influence of the external environment on the photodetector 14 is reduced, and the service life of the audio communication device of the flashlight based on visible light communication is prolonged. The flashlight audio communication device based on visible light communication provided by the specific embodiment has multiple working modes, on one hand, the functions of the flashlight are expanded, and on the other hand, the volume of the visible light communication device is reduced through an integration process, so that the application field of the visible light communication technology is expanded.
Preferably, the second lamp housing 12 further has a second light source therein, and the second light source is disposed around the periphery of the photodetector 14.
Specifically, by providing the second light source in the second lamp shade 12, on one hand, the flashlight audio communication device based on visible light communication can emit light by using either one or both of the first light source 13 and the second light source when in an illumination mode, so that illumination can be performed with different brightness; on the other hand, the second light source may also be connected to the transmitting module 20, so that the second light source can also transmit the first audio information in the form of visible light (for example, when the first light source 13 fails), thereby further ensuring the performance stability of the flashlight audio communication device based on visible light communication.
Preferably, the first light source 13 is a white light emitting diode. More preferably, the first light source 13 is a quantum well light emitting diode that emits white light. The material of the quantum well light emitting diode is preferably a gallium nitride-based material.
Preferably, the first lampshade 11 is located at an end of the housing 10, and is coaxially arranged with a cavity surrounded by the housing 10; the housing 10 has a handle 15 thereon, and the second lamp housing 12 is connected to an end of the handle 15.
Specifically, an axis of the cavity extending in the X-axis direction coincides with an axis of the first lamp shade 11 extending in the X-axis direction. The handle 15 on the housing 10 is used for a user to grasp in order to move the visible light communication based flashlight audio communication device. In the direction of the Z axis, the second lamp shade 12 is located above the first lamp shade 11, the first light source 13 emits light signals along the positive direction of the X axis, and the second light signals from the outside are transmitted to the photodetector 14 along the negative direction of the X axis. Those skilled in the art may also arrange a focusing lens on the first lamp shade 11 and/or the second lamp shade 12 according to actual needs to improve the collimation of the optical signal transmission.
Preferably, the audio input port 21 includes a microphone port 16 and an earphone port 17 both located on the housing 10;
the receiving module 22 further comprises a speaker 18 located on the housing 10, wherein the speaker 18 is used for playing the second audio information.
The relative positions of the microphone port 16, the earphone port 17 and the speaker 18 on the housing 10 can be set by those skilled in the art according to actual needs, and the present embodiment does not limit this.
Fig. 3 is a schematic circuit diagram of a transmitting module according to an embodiment of the present invention. Preferably, as shown in fig. 2 and 3, the sending module 20 further includes:
an input signal selection circuit 201, an input end of which is connected to the microphone port 16 and the earphone port 17, and an output end of which is connected to a dual-path parallel amplifier 202, for selecting a source of the first audio information;
the two-way parallel amplifier 202 is connected with the driving circuit 203 and is used for carrying out two-way parallel amplification on the first audio information;
the driving circuit 203 is connected to the first light source 13, and configured to drive the first light source 13 to emit the first optical signal carrying the first audio information.
Specifically, in the transmitting mode, the user can transmit the first audio information to the flashlight audio communication device based on visible light communication through the microphone connected to the microphone port 16 or the headset with microphone function (e.g., four-section headset) connected to the headset port 17. The type of the microphone port 16 may be MAX98131, and the type of the earphone port 17 may be 3.5mm phone. The input signal selection circuit 201 may employ a SGM3157 one-way analog switch to determine the source of the first audio information, i.e., whether the first audio information is from the microphone port 16 or the earphone port 17. An AD828 amplifier may be employed as the dual parallel amplifier 202 to amplify the input first audio information, thereby improving the ability to current drive the first light source 13. Then, the driving circuit 203 modulates the first light source 13 with the driving current loaded with the first audio information to emit the first light signal outwards. When the sending module 20 operates, a TPS65133 dual-output power supply is used to supply power to each component in the sending module 20, and an LP38502 low dropout regulator is used to regulate the voltage of the whole sending module 20.
Fig. 4 is a schematic circuit diagram of a receiving module according to an embodiment of the present invention. Preferably, as shown in fig. 2 and 4, the receiving module 22 further includes:
a photoelectric conversion circuit 221, connected to the photodetector 14, for converting the second optical signal into a second electrical signal;
a high-pass filter circuit 222, connected to the photoelectric conversion circuit 221, for performing high-pass filtering processing on the second electrical signal;
a voltage-controlled amplifier 223 connected to the high-pass filter circuit 222 for amplifying the second electrical signal after the high-pass filtering process;
and an output selection circuit 225, connected to the voltage-controlled amplifier 223, the speaker 18 and the earphone port 17, for selecting an output mode of the amplified second electrical signal.
Specifically, the high-pass filter circuit 222 including an AD828 dual-channel operational amplifier performs high-pass filtering processing on the second electrical signal converted by the photoelectric conversion circuit 221 to filter background light interference and power frequency noise. And amplifying the second electric signal subjected to the high-pass filtering by using a VCA810 high-gain voltage-controlled amplifier. The output form of the amplified second electrical signal is then selected by the output selection circuit 225, which includes an SGM3157 analog switch, to select whether the second electrical signal is output directly from the speaker 18 to the outside or from the headphone port 17 to the user through headphones. In order to further improve the authenticity of the second electrical signal, a digital AGC circuit may also be provided between the high pass filter circuit 222 and the voltage controlled amplifier 223.
Preferably, the receiving module 22 further includes:
and a clipping distortion prevention circuit 224, which is located between the voltage-controlled amplifier 223 and the output selection circuit 225, and is used for performing clipping distortion prevention processing on the amplified second electrical signal.
Specifically, the anti-clipping distortion circuit performs anti-clipping distortion processing on the second electrical signal before the output selection circuit 225 outputs the second electrical signal through the speaker 18 or the earphone port 17. The anti-aliasing circuit 224 may comprise an HT6872 anti-aliasing audio power amplifier.
Fig. 5 is a schematic circuit diagram of a control module according to an embodiment of the present invention. Preferably, as shown in fig. 2 and 5, the control module 23 includes:
the single chip 231 is connected with the control end of the input signal selection circuit 201, the control end of the output signal selection circuit 225, the key circuit 232 and the USB serial port conversion circuit 233, and is used for respectively controlling whether the input signal selection circuit 201 is conducted and whether the output signal selection circuit 225 is conducted;
a key circuit 232 including a selection key 19 on the housing for user selection of an operating mode of the flashlight audio communication device;
and a USB to serial port circuit 233 for connecting an external device.
In particular, the key circuit 232 includes a plurality of selection keys 19 on the housing 10, and the user can switch the operation mode of the audio communication device of the flashlight based on visible light communication by pressing one of the selection keys 19. The single chip microcomputer 231 may be an STC single chip microcomputer. The USB to serial port circuit 233 may include a CP2102 USB to serial port module, which is configured to connect to an external device, and implement downloading of software programs and debugging of codes in the visible light communication based flashlight audio communication apparatus. The control module 23 may also include a TP4057 lithium battery charger for powering the various electronic components in the control module 23.
In addition, the housing 10 may further be provided with an on button and an off button connected to the single chip 231, where the on button is used to start the audio communication device of the flashlight based on visible light communication, and the off button is used to turn off the audio communication device of the flashlight based on visible light communication.
Preferably, the earphone port 17 is used for connecting three earphones and four earphones;
the single chip 231 is further connected to the earphone port 17, and is configured to detect the number of earphone nodes inserted into the earphone port 17, and switch the operating mode of the flashlight audio communication device according to the detection result.
For example, when the earphone inserted into the earphone port 17 is a three-section earphone, the single chip microcomputer 231 controls the output signal selection circuit 225 to be turned on, and the flashlight audio communication device based on visible light communication is automatically switched to a receiving mode; when the earphones inserted into the earphone port 17 are four earphones, the single chip microcomputer 231 controls the input signal selection circuit 201 to be switched on, and the flashlight audio communication device based on visible light communication is automatically switched to a sending mode.
In other specific embodiments, the single chip 231 may further determine an output mode of the second audio signal by detecting a number of earphone nodes inserted into the earphone port 17. For example, when the earphone inserted into the earphone port 17 is a three-segment earphone, the second audio information carried in the second electrical signal is output by using the speaker 18; and when the earphone inserted into the earphone port 17 is four earphones, outputting the second audio information carried in the second electric signal by using the four earphones.
For example: in fig. 3, J _ DET: defaulting to a low level, setting the earphone to a high level after insertion, and triggering to interrupt; after interruption triggering, the single chip microcomputer detects the MIC pin level, the pin level is low, which means that three earphones are inserted, and the inserted pin is an audio source; the MIC pin level is high, which represents that the MIC earphone (namely four earphones) is accessed, and the mode is switched to a full duplex mode; the P4 is used for connecting an earphone socket externally, so that the flashlight can be conveniently modified; the flashlight device based on visible light communication adopts speaker output by default, when three earphones are inserted, the output is switched to be an external audio source output, and when four earphones are inserted, the output is switched to be the MIC output of the earphones; the double-circuit parallel amplifier improves the current driving capability to 200 mA; VCC _ EN defaults high, and is set to low after detecting that the flashlight audio communication device is turned off; t6 connectable LED driving voltage VLED(no welding of Q1), two-stage dimming is compatible; the input is reverse connection prevention, the S1 can be switched to be used for downloading the program of the single chip microcomputer for the first time, and the R81 is not welded.
In fig. 4, the first stage is compatible with the reverse input and TIA usage, and the second stage performs high-pass filtering to filter background light interference and power frequency noise; the receiving audio (i.e., the second audio signal) output channel selects the speaker by default, and when the four sections of earphones are input, the sending earphone outputs. The VCA 810: and a digital VGC (U13 second-stage operational amplifier is used for rectifying, filtering and sending the rectified and filtered signals to the single chip microcomputer, and the single chip microcomputer controls the digital potentiometer U11 to output corresponding control voltage according to the value. The speaker power amplifier drives the compatible SSM2211 chip.
In fig. 5, KEY 0: receiving a flashlight switch (namely a selection key), triggering interruption by a rising edge, and recording the interruption times; when no earphone is inserted, the earphone is used for switching between a transmitting mode and a receiving mode, and when an earphone (four earphones) with an MIC (microphone) is connected, the earphone is used for full duplex communication and master power switch control. OLED _ DISPLAY (OLED screen) is used for spectrum DISPLAY. J _ DET defaults to low and headphone insertion goes high, triggering an interrupt. The control module supports USB interface battery charging.
The flashlight audio communication device based on visible light communication enables the flashlight audio communication device to illuminate through the addition of the sending module, the receiving module and the control module, and can send and receive audio information in a visible light mode, so that the concealment and the convenience of audio information transmission are improved. The invention expands the functions of the traditional flashlight on one hand, reduces the volume of the visible light communication device on the other hand, realizes the integration of visible light communication and flashlight illumination, and has the advantages of convenient carrying, smooth communication, low cost, realization of large-scale production in short time and the like.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A flashlight audio communication device based on visible light communication, comprising:
the flashlight comprises a flashlight body and a control module, wherein the flashlight body comprises a shell, a first lampshade, a second lampshade and an audio input port positioned on the shell, and a first light source is arranged in the first lampshade;
the transmitting module is connected with the first light source and used for receiving first audio information input by a user and converting the first audio information into a first electric signal so as to drive the first light source to emit the first optical signal;
the receiving module comprises a photoelectric detector positioned in the second lampshade, and is used for receiving a second optical signal from the outside and converting the second optical signal into a second electric signal so as to acquire second audio information from the outside;
and the control module is connected with the sending module, the receiving module and the first light source and used for adjusting the working modes of the audio communication device of the flashlight, wherein the working modes comprise a sending mode, a receiving mode and an illumination mode.
2. The visible-light-communication-based flashlight audio communication device of claim 1 wherein the audio input port includes a microphone port and an earphone port both located on the housing; the receiving module further comprises a speaker located on the housing, the speaker being configured to play the second audio information.
3. The visible light communication-based flashlight audio communication device of claim 2, wherein the transmitting module further comprises:
the input end of the input signal selection circuit is connected with the microphone port and the earphone port, and the output end of the input signal selection circuit is connected with the double-path parallel amplifier and is used for selecting the source of the first audio information;
the double-path parallel amplifier is connected with the driving circuit and is used for carrying out double-path parallel amplification on the first audio information;
and the driving circuit is connected with the first light source and used for driving the first light source to emit the first optical signal carrying the first audio information.
4. The visible light communication-based flashlight audio communication device of claim 2, wherein the receiving module further comprises:
the photoelectric conversion circuit is connected with the photoelectric detector and is used for converting the second optical signal into a second electric signal;
the high-pass filter circuit is connected with the photoelectric conversion circuit and is used for carrying out high-pass filter processing on the second electric signal;
the voltage-controlled amplifier is connected with the high-pass filter circuit and is used for amplifying the second electric signal subjected to high-pass filtering;
and the output selection circuit is connected with the voltage-controlled amplifier, the loudspeaker and the earphone port and is used for selecting the output mode of the amplified second electric signal.
5. The visible light communication-based flashlight audio communication device of claim 4, wherein the receiving module further comprises:
and the anti-clipping distortion circuit is positioned between the voltage-controlled amplifier and the output selection circuit and is used for carrying out anti-clipping distortion processing on the amplified second electric signal.
6. The visible light communication-based flashlight audio communication device of claim 4, wherein the control module comprises:
the single chip microcomputer is connected with the control end of the input signal selection circuit, the control end of the output signal selection circuit, the key circuit and the USB serial port conversion circuit and is used for respectively controlling whether the input signal selection circuit and the output signal selection circuit are conducted or not;
a key circuit comprising a selection key located on the housing, the selection key for a user to select an operating mode of the flashlight audio communication device;
and the USB-to-serial port circuit is used for connecting external equipment.
7. The visible-light-communication-based flashlight audio communication device of claim 6, wherein the headset port is used for connecting with three-section headsets and four-section headsets;
the single chip microcomputer is also connected with the earphone port and used for detecting the number of earphone sections inserted into the earphone port and switching the working mode of the flashlight audio communication device according to the detection result.
8. The visible light communication-based flashlight audio communication device of claim 1 wherein the second light housing further has a second light source therein, the second light source being disposed around the periphery of the photodetector.
9. The visible light communication-based flashlight audio communication device of claim 1 wherein the first light source is a white light emitting diode.
10. The visible light communication-based flashlight audio communication device of claim 1, wherein the first lamp shade is located at an end of the housing and is coaxially arranged with a cavity surrounded by the housing; the housing has a handle thereon, and the second light shade is connected to an end of the handle.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203788290U (en) * | 2014-03-17 | 2014-08-20 | 长春理工大学 | LED glare flashlight and visible light based portable emergency communication system |
| CN203933634U (en) * | 2014-06-10 | 2014-11-05 | 南京复实通讯科技有限公司 | A kind of device of visible light communication |
| CN105650510A (en) * | 2016-03-20 | 2016-06-08 | 文成县刀锋科技有限公司 | Visible-light-based flashlight |
| US9386667B2 (en) * | 2014-02-26 | 2016-07-05 | Blaine Clifford Readler | Encoded light-activated illumination |
| CN106151917A (en) * | 2016-07-13 | 2016-11-23 | 苏州天擎电子通讯有限公司 | A kind of photovoltaic energy-conservation intelligent communication flashlight |
| CN205842315U (en) * | 2016-06-27 | 2016-12-28 | 贝特（杭州）工业机械有限公司 | A kind of traffic signal pocket lamp based on visible ray |
| CN206754874U (en) * | 2017-02-08 | 2017-12-15 | 广东昭信照明科技有限公司 | A kind of flashlight based on visible light communication |
| CN105225297B (en) * | 2014-05-29 | 2018-05-25 | 深圳光启智能光子技术有限公司 | Mobile terminal photonic data transmission method, transmitting device and photonic data reception device |
| CN207906910U (en) * | 2018-03-27 | 2018-09-25 | 重庆吉雪机电设备有限公司 | Multiple light courcess switches Intelligent flashlight |
| CN110190903A (en) * | 2019-06-10 | 2019-08-30 | 南京艾凯特光电科技有限公司 | Portable duplex visible light communication device |
-
2019
- 2019-09-25 CN CN201910910675.2A patent/CN110868255A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9386667B2 (en) * | 2014-02-26 | 2016-07-05 | Blaine Clifford Readler | Encoded light-activated illumination |
| CN203788290U (en) * | 2014-03-17 | 2014-08-20 | 长春理工大学 | LED glare flashlight and visible light based portable emergency communication system |
| CN105225297B (en) * | 2014-05-29 | 2018-05-25 | 深圳光启智能光子技术有限公司 | Mobile terminal photonic data transmission method, transmitting device and photonic data reception device |
| CN203933634U (en) * | 2014-06-10 | 2014-11-05 | 南京复实通讯科技有限公司 | A kind of device of visible light communication |
| CN105650510A (en) * | 2016-03-20 | 2016-06-08 | 文成县刀锋科技有限公司 | Visible-light-based flashlight |
| CN205842315U (en) * | 2016-06-27 | 2016-12-28 | 贝特（杭州）工业机械有限公司 | A kind of traffic signal pocket lamp based on visible ray |
| CN106151917A (en) * | 2016-07-13 | 2016-11-23 | 苏州天擎电子通讯有限公司 | A kind of photovoltaic energy-conservation intelligent communication flashlight |
| CN206754874U (en) * | 2017-02-08 | 2017-12-15 | 广东昭信照明科技有限公司 | A kind of flashlight based on visible light communication |
| CN207906910U (en) * | 2018-03-27 | 2018-09-25 | 重庆吉雪机电设备有限公司 | Multiple light courcess switches Intelligent flashlight |
| CN110190903A (en) * | 2019-06-10 | 2019-08-30 | 南京艾凯特光电科技有限公司 | Portable duplex visible light communication device |
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Application publication date: 20200306 |