CN112910552B - LiFi communication device and electronic equipment - Google Patents
LiFi communication device and electronic equipment Download PDFInfo
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- CN112910552B CN112910552B CN201911223265.7A CN201911223265A CN112910552B CN 112910552 B CN112910552 B CN 112910552B CN 201911223265 A CN201911223265 A CN 201911223265A CN 112910552 B CN112910552 B CN 112910552B
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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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- 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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- 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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/502—LED transmitters
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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
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/67—Optical arrangements in the receiver
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- 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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application provides a LiFi communication device and electronic equipment, wherein the LiFi communication device comprises two optical fidelity LiFi optical modules used for carrying out LiFi communication, a communication chip and a conversion module, the conversion module can convert a first frequency transmission signal sent by the communication chip into two paths of second frequency LiFi transmission signals, the two optical fidelity LiFi optical modules respectively transmit the LiFi transmission signals, and the two optical fidelity LiFi optical modules respectively receive second frequency LiFi reception signals and convert the second frequency LiFi reception signals into first frequency WiFi reception signals and transmit the first frequency WiFi reception signals to the communication chip for processing. The two paths of transmission channels are utilized to realize signal transmission with the same frequency, so that the transmission rate of LiFi communication is improved, liFi communication of the electronic equipment can be realized without externally connecting a LiFi module by a USB interface of the electronic equipment, the convenience of the electronic equipment is improved, the internal space of the electronic equipment is saved, and the integrity and the attractiveness of the electronic equipment are ensured.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a LiFi communication device and an electronic device.
Background
The Light Fidelity (LiFi) technology is a Light internet technology, and uses Light emitted by an LED illuminating lamp as a transmission tool of network signals to perform data transmission, so as to realize illumination internet. LiFi has low radiation, low energy consumption and low carbon and environmental protection, and gradually becomes a research hotspot in the field of communication.
In the related art, when using LiFi technology in electronic devices such as mobile phones, a LiFi module is usually connected to a USB interface of the electronic device in an external manner for performing LiFi communication, if the LiFi module is connected to the USB interface of the electronic device, other functions of the interface cannot be normally used when performing LiFi communication, such as charging by using the interface, and if the LiFi module is connected to the USB interface of the electronic device in an external manner, the USB interface occupies an internal space of the electronic device and affects the aesthetic property of the electronic device.
Disclosure of Invention
The embodiment of the application provides a LiFi communication device and electronic equipment, which are used for solving the technical problems that in the related art, if the original USB interface of the electronic equipment is used for externally connecting a LiFi module to carry out LiFi communication, other functions of the interface cannot be normally used, and if the USB interface is added to the electronic equipment for externally connecting the LiFi module, the internal space of the electronic equipment is occupied, the aesthetic property of the electronic equipment is influenced, and therefore, the LiFi communication mode of externally connecting the LiFi module to the USB interface of the electronic equipment has defects.
To this end, an embodiment of an aspect of the present application provides a LiFi communication device, including: the first light fidelity LiFi optical module and the second light fidelity LiFi optical module are respectively used for carrying out LiFi communication; a communication chip; and the conversion module is respectively connected with the communication chip, the first light fidelity LiFi optical module and the second light fidelity LiFi optical module, and is used for receiving the first frequency transmission signals sent by the communication chip, converting the first frequency transmission signals into two paths of second frequency LiFi transmission signals, respectively transmitting the two paths of second frequency LiFi transmission signals through the first light fidelity LiFi optical module and the second light fidelity LiFi optical module, respectively converting one path of second frequency LiFi receiving signals received by the first light fidelity LiFi optical module and one path of second frequency LiFi receiving signals received by the second light fidelity LiFi optical module into first frequency receiving signals, and transmitting the first frequency receiving signals to the communication chip for processing.
In another aspect, an embodiment of the present application provides an electronic device, including a LiFi communication apparatus according to the first aspect.
The technical scheme disclosed by the application has the following beneficial effects:
the LiFi optical module, the second LiFi optical module, the communication chip and the conversion module connected with the communication chip are configured in the LiFi communication device, the conversion module is used for converting the second-frequency LiFi received signals respectively received by the two LiFi optical modules into first-frequency received signals and sending the first-frequency received signals to the communication chip for processing, and receiving the first-frequency sent signals sent by the communication chip, converting the first-frequency sent signals into two paths of second-frequency LiFi sent signals, and sending the two paths of second-frequency LiFi sent signals through the two LiFi optical modules respectively, so that LiFi communication of the electronic device can be realized without using the USB interface of the electronic device to connect with the LiFi optical modules.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a LiFi communication device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a LiFi communication device according to another embodiment of the present application;
fig. 3 is a schematic structural diagram of a LiFi communication device according to another embodiment of the present application;
fig. 4 is a schematic structural diagram of a LiFi communication device according to another embodiment of the present application;
FIG. 5 is a schematic diagram illustrating a first sub-module according to an embodiment of the present application;
FIG. 6 is a schematic diagram illustrating a first sub-module according to another embodiment of the present application;
FIG. 7 is a schematic diagram illustrating a first sub-module according to another embodiment of the present application;
FIG. 8 is a schematic diagram illustrating a first sub-module according to another embodiment of the present application;
fig. 9 is a schematic circuit diagram of a first matching network unit according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of a LiFi communication device according to another embodiment of the present application;
reference numerals illustrate:
a first light fidelity LiFi optical module-1; a second light fidelity LiFi optical module-2;
a first conversion sub-module-41; a second conversion sub-module-42;
a first signal transceiving unit-412; a first frequency conversion unit-411;
a second signal transceiving unit-422; second frequency conversion unit-421
A communication chip-3; a conversion module-4; a first light emitter-11;
a first optical receiver-22; a second light emitter-21; a second light receiver-22;
a first switch-4121; a first oscillator-4111; a first mixer-4112;
a second switch-4221; a second oscillator-4211; a second mixer-4212;
a first amplifier-4122; a second amplifier-4123; third amplifier-4222;
a first matching network element-413; fourth amplifier-4223; a second matching network element-423.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
In the related art, if the original USB interface of the electronic device is used to connect the LiFi module to the LiFi module, other functions of the interface cannot be normally used when the LiFi communication is performed, and if the USB interface is added to the electronic device to connect the LiFi module to the LiFi module, the USB interface occupies the internal space of the electronic device and affects the aesthetic property of the electronic device, so that the LiFi communication performed by connecting the LiFi module to the USB interface of the electronic device has drawbacks.
The LiFi communication device provided by the embodiment of the application is provided with the two optical fidelity LiFi optical modules, the communication chip and the conversion modules respectively connected with the communication chip and the two optical fidelity LiFi optical modules, the conversion modules are utilized to convert the LiFi receiving signals of the second frequency received by the two LiFi optical modules respectively into the receiving signals of the first frequency and send the receiving signals of the first frequency to the communication chip for processing, the receiving signals of the first frequency sent by the communication chip are also utilized to convert the sending signals of the first frequency into the LiFi sending signals of the two paths of the second frequency, and the LiFi sending signals are respectively sent through the two optical fidelity LiFi optical modules, so that LiFi communication of the electronic equipment can be realized without using the USB interface of the electronic equipment to realize signal transmission of the same frequency.
The following describes a LiFi communication device and an electronic apparatus according to an embodiment of the present application with reference to the accompanying drawings.
First, a specific description will be given of a LiFi communication device provided in an embodiment of the present application with reference to fig. 1.
Fig. 1 is a schematic structural diagram of a LiFi communication device according to an embodiment of the present application.
As shown in fig. 1, the LiFi communication device of the present application may include: the optical system comprises a first light fidelity LiFi optical module 1, a second light fidelity LiFi optical module 2, a communication chip 3 and a conversion module 4.
The first light fidelity LiFi optical module 1 and the second light fidelity LiFi optical module 2 are respectively used for carrying out LiFi communication;
the conversion module 4 is respectively connected with the communication chip 3, the first optical fidelity LiFi optical module 1 and the second optical fidelity LiFi optical module 2, and is configured to receive the first frequency transmission signal sent by the communication chip 3, convert the first frequency transmission signal into two paths of second frequency LiFi transmission signals, respectively send the two paths of second frequency LiFi transmission signals through the first optical fidelity LiFi optical module 1 and the second optical fidelity LiFi optical module 2, and respectively convert one path of second frequency LiFi reception signal received by the first optical fidelity LiFi optical module 1 and one path of second frequency LiFi reception signal received by the second optical fidelity LiFi optical module into the first frequency reception signal, and send the first frequency reception signal to the communication chip 3 for processing.
Specifically, the LiFi communication device provided by the embodiment of the present application may be applied to electronic devices, such as smart phones, tablet computers, personal digital assistants, etc., to implement LiFi communication of the electronic devices.
It can be appreciated that the optical fidelity LIFI optical module may include an optical receiver and an optical transmitter, where an optical signal received by the optical receiver may be converted into an electrical signal after being processed by a chip, a circuit, etc. inside the optical fidelity LIFI optical module, and the electrical signal may also be sent out through the optical transmitter after being processed by the chip, the circuit, etc. inside the optical fidelity LIFI optical module, so as to implement LIFI communication.
In the embodiment of the present application, the first optical transmitter 11 and the first optical receiver 12 are respectively connected to the conversion module 4, the second optical transmitter 21 and the second optical receiver 22 are respectively connected to the conversion module 4, the first optical transmitter 11 and the second optical transmitter 21 are used for transmitting the LiFi transmission signal with the second frequency, and the first optical receiver 12 and the second optical receiver 22 are used for receiving the LiFi reception signal with the second frequency.
The communication chip 3 may be any chip capable of performing signal processing in an electronic device, and the present application is not limited thereto.
It can be understood that the current electronic device generally comprises a WiFi communication chip to realize a WiFi communication function, and the WiFi communication chip can process a baseband signal to be transmitted into a WiFi radio frequency signal suitable for performing WiFi communication, so in order to avoid the need of externally connecting a LiFi communication module to a USB interface of the electronic device when implementing LiFi communication, the present application can directly utilize the electronic device to perform LiFi communication, and can multiplex the existing WiFi communication chip in the electronic device to process the baseband signal, and then convert the radio frequency signal processed by the WiFi communication chip into an intermediate frequency signal suitable for performing LiFi communication, thereby eliminating the need of externally connecting the LiFi communication module to the USB interface of the electronic device for performing LiFi communication.
That is, in the embodiment of the present application, the communication chip 3 may be a WiFi communication chip, and accordingly, the first frequency is in the working frequency band of WiFi communication. For example, the first frequency may be any frequency in the 2.4GHz band or the 5GHz band. Wherein, 2.4GHz frequency band and 5GHz frequency band are the public frequency band of wiFi.
The second frequency is any frequency in the operating frequency band of LiFi communication. For example, the second frequency may be 80MHz or 160MHz, 280MHz, 360MHz, etc.
It may be understood that, in the embodiment of the present application, when the electronic device is used as a receiving end of LiFi communication, the first optical fidelity LiFi optical module 1 and the second optical fidelity LiFi optical module 2 can both receive optical signals, after the optical signals are processed by a chip, a circuit, etc. inside the optical fidelity LiFi optical module, the optical signals can be converted into LiFi receiving signals with a second frequency, and sent to the conversion module 4, the conversion module 4 can respectively convert one path of LiFi receiving signals with the second frequency received by the first optical fidelity LiFi optical module 1 and one path of LiFi receiving signals with the second frequency received by the second optical fidelity LiFi optical module 2 into receiving signals with the first frequency and send the receiving signals to the communication chip 3 for processing, and after the communication chip 3 receives the receiving signals with the first frequency, the receiving signals with the first frequency can be processed, so as to process the receiving signals with the first frequency into baseband signals, thereby obtaining communication data received by the electronic device; when the electronic device is used as a transmitting end of LiFi communication, the communication chip 3 can process a baseband signal to be transmitted to obtain a transmitting signal with a first frequency, then the transmitting signal with the first frequency is transmitted to the conversion module 4, and the conversion module 4 can convert the transmitting signal with the first frequency into two paths of LiFi transmitting signals with a second frequency and transmit the two paths of LiFi transmitting signals through the first optical module 1 and the second optical module 2.
It should be noted that, in the embodiment of the present application, the communication chip 3 needs to support MIMO (multiple input multiple output) technology.
Therefore, when the electronic equipment is used as a receiving end and a sending end of LiFi communication, the LiFi communication of the electronic equipment can be realized through a communication chip in the electronic equipment and a network protocol thereof without using a USB interface external to the LiFi module, other functions of the occupied interface can not be normally used when the LiFi communication is performed, convenience of the electronic equipment is improved, the USB interface is prevented from being additionally arranged in the electronic equipment, the internal space of the electronic equipment is saved, the integrity and the aesthetic property of the electronic equipment are ensured, and the user experience is improved. And because the two paths of signal transmission are carried out through the two paths of transmission paths, the frequencies of the two paths of signals are the same, and the total bandwidth is twice as high as that of the signal transmission through the single path, so that the transmission rate is twice as high as that of the signal transmission through the single path, and the transmission rate of LiFi communication is improved.
The structure and operation principle of the conversion module 4 according to the embodiment of the present application will be described below with reference to fig. 2 to 10.
As shown in fig. 2, in an exemplary embodiment, the conversion module 4 may include: a first conversion sub-module 41 and a second conversion sub-module 42;
the first conversion sub-module 41 is configured to convert the LiFi received signal at the second frequency received by the first optical receiver 12 into a received signal at the first frequency, send the received signal to the communication chip 3 for processing, and receive the transmitted signal at the first frequency sent by the communication chip 3, convert the transmitted signal at the first frequency into a LiFi transmitted signal at the second frequency, and send the LiFi transmitted signal through the first optical transmitter 11;
the second conversion sub-module 42 is configured to convert the LiFi received signal at the second frequency received by the second optical receiver 22 into a received signal at the first frequency, send the received signal to the communication chip 3 for processing, and receive the transmitted signal at the first frequency sent by the communication chip 3, convert the transmitted signal at the first frequency into a LiFi transmitted signal at the second frequency, and send the LiFi transmitted signal through the second optical transmitter 21.
As shown in fig. 3, in an exemplary embodiment, the first conversion sub-module 41 includes: a first frequency conversion unit 411, a first signal transmitting/receiving unit 412;
the first signal transceiver 412 is connected to the first optical transmitter 11 and the first optical receiver 12, and is used for selecting one of the first optical transmitter 11 and the first optical receiver 12 to communicate;
the first frequency conversion unit 411 is connected to the communication chip 3, and is configured to convert a transmission signal of a first frequency transmitted by the communication chip 3 into a LiFi transmission signal of a second frequency when the first signal transceiver unit 412 selects the first optical transmitter 11 for communication, and transmit the LiFi transmission signal of the second frequency through the first optical transmitter 11, and convert a LiFi reception signal of the second frequency into a reception signal of the first frequency when the first signal transceiver unit 412 selects the first optical receiver 12 for communication, and transmit the reception signal to the communication chip 3 for processing.
In an exemplary embodiment, as shown in fig. 3, the second conversion sub-module 42 includes: a second signal transceiving unit 422 and a second frequency conversion unit 421;
the second signal transceiver 422 is connected to the second optical transmitter 21 and the second optical receiver 22, and is used for selecting one of the second optical transmitter 21 and the second optical receiver 22 to communicate;
the second frequency conversion unit 421 is connected to the communication chip 3, and is configured to convert a transmission signal of the first frequency transmitted by the communication chip 3 into a LiFi transmission signal of the second frequency and transmit the LiFi transmission signal through the second optical transmitter 21 when the second signal transceiver unit 422 selects the second optical transmitter 21 to perform communication, and convert a LiFi reception signal of the second frequency into a reception signal of the first frequency and transmit the reception signal to the communication chip 3 to perform processing when the second signal transceiver unit 422 selects the second optical receiver 22 to perform communication.
Specifically, the first signal transceiving unit 412 may include a first switch 4121, and the second signal transceiving unit 422 may include a second switch 4221. The first switch 4121 and the second switch 4221 may be single pole double throw switches, toggle switches, rotary switches, and the like, which is not limited in the present application.
It will be appreciated that in practical applications, the first switch 4121 or the second switch 4221 may be replaced by two switches, for example, the first switch 4121 is replaced by two switches, where one switch is connected to the first frequency conversion unit 411 and the optical transmitter 11, and the other switch is connected to the first frequency conversion unit 411 and the optical receiver 12, and one switch is closed and the other switch is opened to select one of the optical transmitter 11 and the optical receiver 12 for communication.
In an exemplary embodiment, as shown in fig. 4, the first frequency conversion unit 411 may include: a first oscillator 4111 and a first mixer 4112;
a first oscillator 4111 for providing a first mixing signal;
the first mixer 4112 is respectively connected to the first signal transceiver 412, the first oscillator 4111 and the communication chip 3, and is configured to convert the LiFi received signal with the second frequency received by the first optical receiver 12 into a received signal with the first frequency according to the first mixing signal, send the received signal to the communication chip 3 for processing, receive the transmitted signal with the first frequency sent by the communication chip 3, convert the transmitted signal with the first frequency into a LiFi transmitted signal with the second frequency according to the first mixing signal, and send the converted signal with the second frequency through the optical transmitter 11.
The second frequency conversion unit 421 includes a second oscillator 4211 and a second mixer 4212;
a second oscillator 4211 for providing a second mixing signal;
the second mixer 4212 is connected to the second signal transceiver 422, the second oscillator 4211 and the communication chip 3, and is configured to convert, according to the second mixing signal, the LiFi reception signal of the second frequency received by the second optical receiver 22 into a reception signal of the first frequency and send the reception signal to the communication chip 3 for processing, and receive the transmission signal of the first frequency sent by the communication chip 3, and convert, according to the second mixing signal, the transmission signal of the first frequency into a LiFi transmission signal of the second frequency and send the LiFi transmission signal through the second optical transmitter 21;
wherein the signal frequencies of the first mixed signal and the second mixed signal are the same.
Specifically, the first mixer 4112 and the second mixer 4212 may be any existing mixer having a frequency conversion function, and the present application is not limited to the types of the first mixer 4112 and the second mixer 4212.
The first oscillator 4111 and the second oscillator 4211 may be any existing oscillators capable of providing a mixing signal, and the present application is not limited to the types of the first oscillator 4111 and the second oscillator 4211.
Specifically, the first mixing signal may be a Local Oscillator (LO) signal, so that the first mixer 4112 may mix the transmission signal of the first frequency sent by the communication chip 3 to the second frequency according to the first LO signal provided by the first Oscillator 4111, and mix the LiFi reception signal of the second frequency received by the first optical receiver 12 to the first frequency according to the first LO signal provided by the first Oscillator 4111.
The second mixing signal may also be an LO signal, so that the second mixer 4212 may mix the transmission signal of the first frequency transmitted by the communication chip 3 to the second frequency according to the second LO signal provided by the second oscillator 4211, and mix the LiFi reception signal of the second frequency received by the second optical receiver 22 to the first frequency according to the second LO signal provided by the second oscillator 4211.
The second frequency is the first frequency minus the signal frequency of the first mixing signal (second mixing signal).
It should be noted that, in order to synchronize the first mixer 4112 and the second mixer 4212 to perform the mixing process, so that the first optical module 1 and the second optical module 2 can perform the LiFi communication synchronously, and ensure the correctness of the data transmitted by the LiFi communication, in the embodiment of the present application, the first mixer 4112 and the second mixer 4212 may perform the mixing process synchronously according to the clock signal in the electronic device. Wherein the clock frequencies of the clock signals according to which the first mixer 4112 and the second mixer 4212 are identical.
It can be understood that when the electronic device is used as the receiving end of LiFi communication, the first optical receiver 12 may be selected by the first switch 4121 to be connected with the first mixer 4112 through the first switch 4121, the second optical receiver 22 may be selected by the second switch 4221 to be connected with the second mixer 4212 through the second switch 4221, so that the first optical receiver 12 and the second optical receiver 22 may simultaneously receive the optical signal, after the first optical receiver 12 receives the optical signal, the optical signal is converted into the LiFi receiving signal with the second frequency through the internal circuit and the chip of the first optical fidelity LiFi optical module 1, and sent to the first mixer 4112, after the second optical receiver 22 receives the optical signal, the optical signal is converted into the LiFi receiving signal with the second frequency through the internal circuit and the chip of the second optical fidelity LiFi optical module 2, and sent to the second mixer 4212, so that the first mixer 4112 and the second mixer 4212 may respectively convert the optical signal with the second frequency into the LiFi receiving signal with the second frequency according to the first mixing signal provided by the first optical fidelity LiFi optical module 4111 and the second mixing signal provided by the second oscillator 4211, and the second frequency is converted into the LiFi receiving signal with the second frequency 3; when the electronic device is used as a transmitting end of LiFi communication, the first optical transmitter 11 may be selected by the first switch 4121 to be connected with the first mixer 4112 through the switch, the second optical transmitter 21 may be selected by the second switch 4221 to be connected with the second mixer 4212 through the second switch 4221, and the first mixer 4112 and the second mixer 4212 may simultaneously receive the transmission signal of the first frequency transmitted by the communication chip 3, and convert the transmission signal of the first frequency into the LiFi transmission signal of the second frequency according to the first mixing signal provided by the first oscillator 4111 and the second mixing signal provided by the second oscillator 4211, respectively, and then transmit the transmission signal of the first frequency through the first optical transmitter 11 and the second optical transmitter 21, respectively.
Therefore, one of the first light emitter 11 and the light receiver 12 can be selected to communicate through the first switch 4121, one of the second light emitter 21 and the second light receiver 22 is selected to communicate through the second switch 4221, and the frequency conversion is carried out on the LiFi receiving signals of the second frequency received by the first light receiver 12 and the second light receiver 22 through the conversion module 4, and the frequency conversion is carried out on the transmitting signals of the first frequency transmitted by the communication chip 3, so that when the electronic equipment is respectively used as a receiving end and a transmitting end of LiFi communication, the signals of the same frequency are transmitted through the two paths of transmission channels, the transmission rate of LiFi communication is improved, the LiFi communication of the electronic equipment can be realized through the communication chip and a network protocol thereof without occupying the original interface of the electronic equipment, other functions of the occupied interface can not be normally used when LiFi communication is avoided, the convenience of the electronic equipment is improved, the USB interface in the electronic equipment is avoided, the internal space of the electronic equipment is saved, the integrity and the user experience is improved.
It should be noted that, in the embodiment of the present application, as shown in fig. 4, the first mixer 4112 and the second mixer 4212 may perform frequency conversion on the received signal or the transmitted signal with the first frequency according to the mixed signals with the same frequency provided by different oscillators, respectively, or in practical application, since the first mixer 4112 and the second mixer 4212 perform frequency conversion by using the mixed signals with the same frequency, in order to save the internal space of the electronic device and reduce the cost of the LiFi communication apparatus, the first mixer 4112 and the second mixer 4212 may also share one oscillator, which is not limited in the present application.
In an exemplary embodiment, as shown in fig. 5, the first signal transceiving unit 412 may further include: the input end of the first amplifier 4122 is connected to one end of the first switch 4121, and the output end of the first amplifier 4122 is connected to the first optical transmitter 11, for amplifying the LiFi transmission signal of the second frequency.
The first amplifier 4122 may be any device capable of amplifying a voltage or a power of a signal, such as an operational amplifier, which is not limited in the present application.
By amplifying the voltage or power of the LiFi transmission signal of the second frequency by the first amplifier 4122 before the LiFi transmission signal of the second frequency is transmitted by the first optical transmitter 11, the effect of enhancing the LiFi transmission signal can be achieved, so that the electronic device can still perform LiFi communication normally when the LiFi transmission signal of the second frequency is weak.
In an exemplary embodiment, as shown in fig. 6, the first signal transceiving unit 412 may further include: the second amplifier 4123, the input terminal of the second amplifier 4123 is connected to the first optical receiver 12, and the output terminal of the second amplifier 4123 is connected to the other end of the first switch 4121, for amplifying the LiFi reception signal of the second frequency.
The second amplifier 4123 may be any device capable of amplifying a voltage or a power of a signal, such as an operational amplifier, and the present application is not limited thereto.
By amplifying the voltage or power of the LiFi received signal with the second frequency by the second amplifier 4123 before the LiFi received signal with the second frequency is sent to the first mixer 4112 for processing through the first switch 4121, the effect of enhancing the LiFi received signal can be achieved, so that when the LiFi received signal with the second frequency is weak, the conversion module 4 can still perform normal processing on the LiFi received signal with the second frequency, and the electronic device can perform LiFi communication normally.
In an exemplary embodiment, as shown in fig. 7, the first signal transceiver 412 may further include a first amplifier 4122 and a second amplifier 4123, so that the LiFi receiving signal of the second frequency can be amplified, and the LiFi transmitting signal of the second frequency can be amplified, so as to ensure that the electronic device performs LiFi communication normally.
It can be understood that, when the first frequency conversion unit 411 receives the LiFi reception signal of the second frequency, and the first frequency conversion unit 411 transmits the LiFi transmission signal of the second frequency, the first frequency conversion unit 411 may transmit the LiFi transmission signal of the second frequency obtained by frequency conversion to the first signal transceiver unit 412 through one signal line, and receive the LiFi reception signal of the second frequency through one signal line, or may transmit the LiFi transmission signal of the second frequency obtained by frequency conversion to the first signal transceiver unit 412 through two signal lines, and receive the LiFi reception signal of the second frequency through two signal lines, through the first frequency conversion unit 411 may also transmit the LiFi transmission signal of the second frequency obtained by frequency conversion to the first signal transceiver unit 412 through two signal lines. Wherein, the frequency of the signals transmitted in the two signal lines is the same.
In transmitting the LiFi transmission signal of the second frequency or the LiFi reception signal of the second frequency through the differential network architecture, as shown in fig. 8, the first conversion sub-module 41 may further include a first network matching unit 413, where the first matching network unit 413 is connected to the first frequency conversion unit 411 and the first signal transceiver unit 412, and is used for combining two paths of LiFi transmission signals of the second frequency output by the first frequency conversion unit 411 into one path of LiFi transmission signal of the second frequency when the first signal transceiver unit 412 selects to communicate through the first optical transmitter 11, and transmitting the two paths of LiFi reception signals of the second frequency transmitted by the first signal transceiver unit 412 into two paths of LiFi reception signals of the second frequency when the first signal transceiver unit 412 selects to communicate through the first optical receiver 12, and transmitting the two paths of LiFi reception signals of the second frequency to the first frequency conversion unit 411 for processing.
In particular, the first matching network unit 413 may be implemented by any circuit in the related art capable of converting a differential network architecture into a single-ended network architecture, such as the circuit shown in fig. 9, which is not limited by the present application.
By utilizing the differential network architecture to transmit LiFi receiving signals and LiFi transmitting signals, the anti-interference capability of the signals is improved, and further the reliability of LiFi communication is improved.
It should be noted that the structure and the principle of the second conversion sub-module 42 are similar to those of the first conversion sub-module 41 shown in fig. 5-9, and the structure and the principle of the second conversion sub-module 42 are not repeated in the present application.
Taking fig. 10 as an example, the first conversion sub-module 41 may include a first switch 4121, a first oscillator 4111, a first mixer 4112, a first amplifier 4122, a second amplifier 4123, and a first matching network unit 413, and the second conversion sub-module 42 may include a second switch 4221, a second mixer 4212, a third amplifier 4222, a fourth amplifier 4223, and a second matching network unit 423, where the second mixer 4212 and the first mixer 4112 share the first oscillator 4111. Therefore, the first conversion sub-module 41 and the second conversion sub-module 42 are utilized to convert the LiFi signals with the second frequency received by the two LiFi optical modules respectively so as to be processed by the communication chip 3, and convert the transmission signals with the first frequency processed by the communication chip 3 into the LiFi transmission signals with the second frequency suitable for LiFi communication so as to be transmitted by the two LiFi optical modules respectively, so that the electronic equipment does not need to utilize a USB interface to be externally connected with the LiFi modules, the LiFi communication can be realized by utilizing an integrated circuit in the electronic equipment, and the communication application range of the electronic equipment is expanded. And because the two paths of signal transmission are carried out through the two paths of transmission paths, the frequencies of the two paths of signals are the same, and the total bandwidth is twice as high as that of the signal transmission through the single path, so that the transmission rate is twice as high as that of the signal transmission through the single path, and the transmission rate of LiFi communication is improved.
It is noted that in the embodiment of the application, by arranging two optical modules and utilizing two transmission channels to perform signal transmission, the total bandwidth is twice that of signal transmission through a single channel, the corresponding transmission rate is twice that of signal transmission through a single channel, and in practical application, signal transmission through a plurality of transmission channels can be flexibly arranged according to requirements, so that the transmission rate is multiple times that of signal transmission through a single channel.
In order to achieve the above embodiments, the present application further proposes an electronic device, where the electronic device includes a LiFi communication apparatus according to the embodiment of the first aspect.
It should be noted that the foregoing explanation of the embodiment of the communication device of the electronic apparatus is also applicable to the electronic apparatus of this embodiment, and the implementation principle is similar, which is not repeated here.
The electronic device may be a smart phone, a tablet computer, a personal digital assistant, etc., which the present application is not limited to.
The electronic equipment provided by the embodiment of the application comprises a LiFi communication device, wherein the communication device comprises two optical fidelity LiFi optical modules used for carrying out LiFi communication, a communication chip and a conversion module, the conversion module can convert a first-frequency transmission signal sent by the communication chip into two paths of second-frequency LiFi transmission signals, the two optical fidelity LiFi optical modules respectively transmit the LiFi transmission signals, and the two optical fidelity LiFi optical modules respectively receive LiFi receiving signals of the second frequencies, convert the LiFi receiving signals of the first frequencies and transmit the LiFi receiving signals of the second frequencies to the communication chip for processing. The two paths of transmission channels are utilized to realize signal transmission with the same frequency, so that the transmission rate of LiFi communication is improved, liFi communication of the electronic equipment can be realized without externally connecting a LiFi module by a USB interface of the electronic equipment, the convenience of the electronic equipment is improved, the internal space of the electronic equipment is saved, and the integrity and the attractiveness of the electronic equipment are ensured.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (9)
1. A LiFi communication device, comprising:
the first light fidelity LiFi optical module and the second light fidelity LiFi optical module are respectively used for carrying out LiFi communication;
a communication chip; and
the conversion module is respectively connected with the communication chip, the first light fidelity LiFi optical module and the second light fidelity LiFi optical module, and is used for receiving a first frequency transmission signal sent by the communication chip, converting the first frequency transmission signal into two paths of second frequency LiFi transmission signals, respectively transmitting the two paths of second frequency LiFi transmission signals through the first light fidelity LiFi optical module and the second light fidelity LiFi optical module, respectively converting a path of second frequency LiFi receiving signal received by the first light fidelity LiFi optical module and a path of second frequency LiFi receiving signal received by the second light fidelity LiFi optical module into a first frequency receiving signal, and transmitting the first frequency receiving signal to the communication chip for processing;
the first optical fidelity LiFi optical module comprises a first optical transmitter and a first optical receiver which are respectively connected with the conversion module, the second optical fidelity LiFi optical module comprises a second optical transmitter and a second optical receiver which are respectively connected with the conversion module, the first optical transmitter and the second optical transmitter are used for transmitting LiFi transmitting signals with the second frequency, and the first optical receiver and the second optical receiver are used for receiving LiFi receiving signals with the second frequency;
the conversion module comprises a first conversion sub-module and a second conversion sub-module;
the first conversion sub-module is used for converting the LiFi receiving signal with the second frequency received by the first light receiver into a receiving signal with the first frequency and sending the receiving signal to the communication chip for processing, receiving the sending signal with the first frequency sent by the communication chip, converting the sending signal with the first frequency into a LiFi sending signal with the second frequency, and sending the LiFi sending signal with the second frequency through the first light emitter;
the second conversion sub-module is configured to convert a LiFi receiving signal with a second frequency received by the second optical receiver into a receiving signal with a first frequency, send the receiving signal to the communication chip for processing, receive a sending signal with the first frequency sent by the communication chip, convert the sending signal with the first frequency into a LiFi sending signal with the second frequency, and send the LiFi sending signal with the second frequency through the second optical transmitter;
the first conversion sub-module includes: the first signal receiving and transmitting unit and the first frequency conversion unit;
the first signal receiving and transmitting unit is respectively connected with the first light emitter and the first light receiver and is used for selecting one path of the first light emitter and the first light receiver to communicate;
the first frequency conversion unit is connected with the communication chip and is used for converting a first frequency sending signal sent by the communication chip into a second frequency LiFi sending signal and sending the second frequency LiFi sending signal through the first light emitter when the first signal receiving and sending unit selects the first light receiver to communicate, converting the second frequency LiFi receiving signal into the first frequency receiving signal and sending the first frequency receiving signal to the communication chip to be processed when the first signal receiving and sending unit selects the first light receiver to communicate;
the second frequency LiFi transmitting signal and the second frequency LiFi receiving signal are transmitted by adopting a differential network architecture, and the first conversion sub-module further comprises: a first matching network element;
the first matching network unit is respectively connected with the first frequency conversion unit and the first signal receiving and transmitting unit, and is used for combining two paths of LiFi transmitting signals with second frequency output by the first frequency conversion unit into one path of LiFi transmitting signal with second frequency when the first signal receiving and transmitting unit selects to communicate with the first light receiver, dividing the LiFi receiving signals with second frequency transmitted by the first signal receiving and transmitting unit into two paths of LiFi receiving signals with second frequency when the first signal receiving and transmitting unit selects to communicate with the first light receiver, and transmitting the LiFi receiving signals with second frequency to the first frequency conversion unit for processing.
2. The LiFi communication device of claim 1, wherein the communication chip is a WiFi communication chip, and the first frequency is in an operating frequency band of WiFi communication.
3. The LiFi communication device of claim 1, wherein the first frequency conversion unit comprises: a first oscillator and a first mixer;
the first oscillator is used for providing a first mixing signal;
the first mixer is respectively connected with the first signal receiving and transmitting unit, the first oscillator and the communication chip, and is used for converting a LiFi receiving signal with a second frequency received by the first optical receiver into a receiving signal with a first frequency according to the first mixing signal and sending the receiving signal to the communication chip for processing, receiving a sending signal with the first frequency sent by the communication chip, converting the sending signal with the first frequency into a LiFi sending signal with the second frequency according to the first mixing signal, and sending the LiFi sending signal with the second frequency through the optical transmitter.
4. The LiFi communication device of claim 3, wherein said second conversion sub-module comprises: a second signal receiving and transmitting unit and a second frequency converting unit;
the second signal receiving and transmitting unit is respectively connected with the second optical transmitter and the second optical receiver and is used for selecting one of the second optical transmitter and the second optical receiver to communicate;
the second frequency conversion unit is connected with the communication chip and is used for converting a first frequency sending signal sent by the communication chip into a second frequency LiFi sending signal and sending the second frequency LiFi sending signal through the second light emitter when the second signal receiving and sending unit selects the second light receiver to communicate, converting a second frequency LiFi receiving signal into a first frequency receiving signal and sending the first frequency receiving signal to the communication chip to be processed when the second signal receiving and sending unit selects the second light receiver to communicate.
5. The LiFi communication device of claim 4, wherein said second frequency conversion unit comprises a second oscillator and a second mixer;
the second oscillator is used for providing a second mixing signal;
the second mixer is respectively connected with the second signal receiving and transmitting unit, the second oscillator and the communication chip, and is used for converting a LiFi receiving signal with a second frequency received by the second optical receiver into a receiving signal with a first frequency according to the second mixing signal and sending the receiving signal to the communication chip for processing, receiving a sending signal with the first frequency sent by the communication chip, converting the sending signal with the first frequency into a LiFi sending signal with the second frequency according to the second mixing signal, and sending the LiFi sending signal with the second frequency through the second optical transmitter;
wherein the signal frequencies of the first mixed signal and the second mixed signal are the same.
6. The LiFi communication device of claim 4, wherein the first signal transceiving unit comprises a first switch, and the second signal transceiving unit comprises a second switch.
7. The LiFi communication device of claim 6, wherein the first signal transceiver unit further comprises: a first amplifier;
the input end of the first amplifier is connected with one end of the first switch, and the output end of the first amplifier is connected with the first light emitter and is used for amplifying the LiFi transmitting signal with the second frequency.
8. The LiFi communication device of claim 6 or 7, wherein the first signal transceiving unit further comprises: a second amplifier;
the input end of the second amplifier is connected with the first optical receiver, and the output end of the second amplifier is connected with the other end of the first switch and is used for amplifying the LiFi receiving signal with the second frequency.
9. An electronic device comprising the LiFi communication apparatus of any one of claims 1 to 8.
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