CN112910552B - LiFi communication device and electronic equipment - Google Patents

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

LiFi communication device and electronic equipment

technical field

The present application relates to the technical field of communication, and in particular to a LiFi communication device and electronic equipment.

Background technique

Light Fidelity (LiFi for short) technology is a light Internet access technology, which uses the light emitted by LED lighting as a transmission tool for network signals to transmit data and realize light Internet access. LiFi has the characteristics of low radiation, low energy consumption and low carbon environmental protection, and has gradually become a research hotspot in the field of communication.

In related technologies, when LiFi technology is used in electronic devices such as mobile phones, LiFi modules are usually externally connected to the USB interface of the electronic device for LiFi communication. If the original USB interface of the electronic device is used to externally connect the LiFi module, It will make it impossible to use other functions of this interface normally during LiFi communication, such as using this interface for charging. If a USB interface is added to an electronic device for an external LiFi module, it will not only occupy the internal space of the electronic device, but also affect the electronic device. Therefore, this method of connecting an external LiFi module to the USB interface of the electronic device for LiFi communication has certain disadvantages.

Contents of the invention

The embodiment of the present application proposes a LiFi communication device and electronic equipment, which are used to solve the problem of connecting a LiFi module externally to the USB interface of the electronic equipment for LiFi communication in related technologies. If you add a USB interface to an external LiFi module in an electronic device, it will not only occupy the internal space of the electronic device, but also affect the aesthetics of the electronic device. Therefore, there is a technical problem of disadvantages in the way of connecting the LiFi module externally to the USB interface of the electronic device to perform LiFi communication.

To this end, an embodiment of the present application proposes a LiFi communication device, including: a first optical fidelity LiFi optical module and a second optical fidelity LiFi optical module, respectively used for LiFi communication; a communication chip; and The conversion module connected to the communication chip, the first optical fidelity LiFi optical module, and the second optical fidelity LiFi optical module is used to receive the transmission signal of the first frequency sent by the communication chip , and converted into two channels of LiFi transmission signals of the second frequency, which are respectively transmitted through the first optical fidelity LiFi optical module and the second optical fidelity LiFi optical module, and the first light The LiFi receiving signal of the second frequency received by the fidelity LiFi optical module and the LiFi receiving signal of the second frequency received by the second optical fidelity LiFi optical module are respectively converted into receiving signals of the first frequency, and sent to the communication chip for processing.

Another embodiment of the present application provides an electronic device, including the LiFi communication device described in the embodiment of the first aspect.

The technical solution disclosed in this application has the following beneficial effects:

By configuring the first optical fidelity LiFi optical module, the second optical fidelity LiFi optical module, the communication chip and the conversion module connected to the communication chip in the LiFi communication device, the two LiFi optical modules are connected by the conversion module The respectively received LiFi reception signals of the second frequency are converted into reception signals of the first frequency and sent to the communication chip for processing, and the transmission signals of the first frequency sent by the communication chip are received, and the transmission signals of the first frequency are converted into two The second frequency LiFi sends signals, and sends them through two optical fidelity LiFi optical modules respectively, so that LiFi communication of electronic devices can be realized without using the USB interface of electronic devices to connect LiFi modules. The channel realizes the signal transmission of the same frequency, thus improving the transmission rate of LiFi communication, and because there is no need to occupy the original interface of the electronic device or add a USB interface to the electronic device, it avoids the normal use of the occupied interface during LiFi communication Other functions of the electronic device improve the convenience of the electronic device, avoid adding a USB interface in the electronic device, save the internal space of the electronic device, ensure the integrity and aesthetics of the electronic device, and improve user experience.

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.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

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 structural diagram of a first conversion sub-module according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a first conversion sub-module according to another embodiment of the present application;

FIG. 7 is a schematic structural diagram of a first conversion sub-module according to another embodiment of the present application;

Fig. 8 is a schematic structural diagram of a first conversion sub-module according to another embodiment of the present application;

FIG. 9 is a schematic diagram of a circuit structure 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;

Explanation of reference signs:

The first optical fidelity LiFi optical module-1; the second optical fidelity LiFi optical module-2;

The first conversion sub-module-41; the second conversion sub-module-42;

The first signal transceiving unit-412; the first frequency conversion unit-411;

The second signal transceiving unit-422; the second frequency converting unit-421

Communication chip-3; conversion module-4; first optical transmitter-11;

The first optical receiver-22; the second optical transmitter-21; the second optical receiver-22;

first switch-4121; first oscillator-4111; first mixer-4112;

second switch-4221; second oscillator-4211; second mixer-4212;

First Amplifier - 4122; Second Amplifier - 4123; Third Amplifier - 4222;

The first matching network unit-413; the fourth amplifier-4223; the second matching network unit-423.

Detailed ways

Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.

Each embodiment of the present application is aimed at the method of connecting an external LiFi module to the USB interface of the electronic device to perform LiFi communication in the related technology. If the original USB interface of the electronic device is used to externally connect the LiFi module, LiFi communication cannot be performed normally. Using other functions of this interface, if adding a USB interface to an external LiFi module in the electronic device, it will not only occupy the internal space of the electronic device, but also affect the aesthetics of the electronic device. Therefore, the external LiFi module at the USB interface of the electronic device In view of the technical problem that there are disadvantages in the way of LiFi communication between groups, a LiFi communication device is proposed.

The LiFi communication device provided in the embodiment of the present application is equipped with two optical fidelity LiFi optical modules, a communication chip, and a conversion module connected to the communication chip and the two optical fidelity LiFi optical modules respectively. By using the conversion module Convert the LiFi receiving signal of the second frequency received by the two LiFi optical modules into the receiving signal of the first frequency and send it to the communication chip for processing, and receive the sending signal of the first frequency sent by the communication chip, and convert the first frequency The sending signal of the frequency is converted into two LiFi sending signals of the second frequency, and are respectively sent through two optical fidelity LiFi optical modules, so that the LiFi of the electronic device can be realized without using the USB interface of the electronic device to connect an external LiFi module. Communication, because the two transmission channels are used to realize the signal transmission of the same frequency, so the transmission rate of LiFi communication is improved, and because there is no need to occupy the original interface of the electronic device or add a USB interface to the electronic device, it avoids the need for LiFi communication. , the other functions of the occupied interface cannot be used normally, which improves the convenience of the electronic equipment, avoids adding a USB interface in the electronic equipment, saves the internal space of the electronic equipment, ensures the integrity and aesthetics of the electronic equipment, and improves user experience.

The following describes the LiFi communication device and electronic equipment according to the embodiments of the present application with reference to the accompanying drawings.

Firstly, the LiFi communication device provided by the embodiment of the present application will be described in detail 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: a first optical fidelity LiFi optical module 1 , a second optical fidelity LiFi optical module 2 , a communication chip 3 , and a conversion module 4 .

Among them, the first optical fidelity LiFi optical module 1 and the second optical fidelity LiFi optical module 2 are respectively used for LiFi communication;

The conversion module 4 is connected to the communication chip 3, the first optical fidelity LiFi optical module 1, and the second optical fidelity LiFi optical module 2 respectively, and is used to receive the transmission signal of the first frequency sent by the communication chip 3, and convert Send signals for two channels of second-frequency LiFi, and send them through the first optical fidelity LiFi optical module 1 and the second optical fidelity LiFi optical module 2 respectively, and send the first optical fidelity LiFi optical module 1 The received LiFi receiving signal of the second frequency and the LiFi receiving signal of the second frequency received by the second optical fidelity LiFi optical module are respectively converted into receiving signals of the first frequency and sent to the communication chip 3 for processing .

Specifically, the LiFi communication device provided in the embodiment of the present application can be applied to electronic devices, such as smart phones, tablet computers, personal digital assistants, etc., so as to realize LiFi communication of the electronic devices.

It can be understood that the optical fidelity LIFI optical module can include an optical receiver and an optical transmitter, and the optical signal received by the optical receiver can be converted into an electrical signal after being processed by chips and circuits inside the optical fidelity LIFI optical module. , and the electrical signal can also be sent out through the optical transmitter after being processed by the chip and circuit inside the optical fidelity LIFI optical module, so as to realize LIFI communication.

In the embodiment of the present application, the first optical fidelity LiFi optical module 1 includes a first optical transmitter 11 and a first optical receiver 12, and the first optical transmitter 11 and the first optical receiver 12 are respectively connected with the conversion module 4 connection, the second optical fidelity LiFi optical module 2 includes a second optical transmitter 21 and a second optical receiver 22, the second optical transmitter 21 and the second optical receiver 22 are respectively connected to the conversion module 4, the second An optical transmitter 11 and a second optical transmitter 21 are used for transmitting LiFi sending signals of the second frequency, and the first optical receiver 12 and the second optical receiver 22 are used for receiving LiFi receiving signals of the second frequency.

Wherein, the communication chip 3 may be any chip capable of signal processing in an electronic device, which is not limited in this application.

It can be understood that the current electronic equipment usually includes a WiFi communication chip to realize the WiFi communication function, and the WiFi communication chip can process the baseband signal to be transmitted into a WiFi radio frequency signal suitable for WiFi communication. When communicating, it is necessary to connect a LiFi communication module to the USB interface of the electronic device to realize LiFi communication directly using the electronic device. The existing WiFi communication chip in the electronic device can be reused to process the baseband signal, and then the WiFi communication chip processed The radio frequency signal is converted into an intermediate frequency signal suitable for LiFi communication, so that there is no need to connect an external LiFi communication module to the USB interface of the electronic device for LiFi communication.

That is, in the embodiment of the present application, the communication chip 3 may be a WiFi communication chip, and correspondingly, the first frequency is in a working frequency band of WiFi communication. For example, the first frequency may be any frequency in the 2.4GHz frequency band or the 5GHz frequency band. Among them, the 2.4GHz frequency band and the 5GHz frequency band are public frequency bands of WiFi.

The second frequency is any frequency in the working frequency band of LiFi communication. For example, the second frequency may be 80MHz or 160MHz, 280MHz, 360MHz and so on.

It can be understood that, in the embodiment of the present application, when the electronic device is used as the receiving end of LiFi communication, both the first optical fidelity LiFi optical module 1 and the second optical fidelity LiFi optical module 2 can receive optical signals, and the optical After the signal is processed by the chip and circuit inside the optical fidelity LiFi optical module, it can be converted into a LiFi receiving signal of the second frequency, and sent to the conversion module 4, and the conversion module 4 can convert the first optical fidelity The LiFi receiving signal of the second frequency received by the true LiFi optical module 1 and the LiFi receiving signal of the second frequency received by the second optical fidelity LiFi optical module 2 are respectively converted into receiving signals of the first frequency and sent To the communication chip 3 for processing, after the communication chip 3 receives the received signal of the first frequency, it can process the received signal of the first frequency, so as to process the received signal of the first frequency into a baseband signal, and then obtain the signal received by the electronic device. communication data; when the electronic device is used as the sending end of LiFi communication, the communication chip 3 can process the baseband signal to be transmitted, obtain the sending signal of the first frequency, and then send the sending signal of the first frequency to the conversion module 4, The conversion module 4 can convert the transmission signal of the first frequency into two LiFi transmission signals of the second frequency, and perform the conversion through the first optical fidelity LiFi optical module 1 and the second optical fidelity LiFi optical module 2 respectively. send.

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.

In this way, when the electronic device is used as the receiving end and sending end of LiFi communication, there is no need to use the USB interface of the electronic device to connect the LiFi module, and the LiFi communication of the electronic device can be realized through the communication chip and its network protocol in the electronic device , because it does not need to occupy the original interface of the electronic device, it avoids the inability to use other functions of the occupied interface during LiFi communication, improves the convenience of the electronic device, and avoids adding a USB interface to the electronic device, saving The internal space of the electronic device ensures the integrity and aesthetics of the electronic device and improves the user experience. And because the signal is transmitted through two transmission channels, the frequency of the two signals is the same, and the total bandwidth is twice that of the signal transmission through the single channel, so the transmission rate is also twice that of the signal transmission through the single channel, so the increase The transmission rate of LiFi communication is increased.

The structure and working principle of the conversion module 4 provided in the embodiment of the present application will be described below with reference to FIGS. 2-10 .

As shown in Figure 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 used to convert the LiFi reception signal of the second frequency received by the first optical receiver 12 into a reception signal of the first frequency and send it to the communication chip 3 for processing, and receive the signal sent by the communication chip 3 a transmission signal of the first frequency, and converting the transmission signal of the first frequency into a LiFi transmission signal of the second frequency, and transmitting it through the first optical transmitter 11;

The second conversion sub-module 42 is used to convert 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 it to the communication chip 3 for processing, and receive the signal sent by the communication chip 3 transmit signals of the first frequency, convert the transmit signals of the first frequency into LiFi transmit signals of the second frequency, and transmit them 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 transceiving unit 412;

The first signal transceiving unit 412 is respectively connected to the first optical transmitter 11 and the first optical receiver 12, and is used to select one of the first optical transmitter 11 and the first optical receiver 12 for communication;

The first frequency conversion unit 411 is connected to the communication chip 3, and is used for converting the transmission signal of the first frequency sent by the communication chip 3 into the LiFi of the second frequency when the first signal transceiver unit 412 selects the first optical transmitter 11 for communication. Send a signal, and send it through the first optical transmitter 11, and when the first signal transceiver unit 412 selects the first optical receiver 12 for communication, convert the LiFi receiving signal of the second frequency into a receiving signal of the first frequency, and send to the communication chip 3 for processing.

In an exemplary embodiment, as shown in FIG. 3 , the second converting sub-module 42 includes: a second signal transceiving unit 422 and a second frequency converting unit 421;

The second signal transceiving unit 422 is respectively connected to the second optical transmitter 21 and the second optical receiver 22, and is used to select one of the second optical transmitter 21 and the second optical receiver 22 for communication;

The second frequency conversion unit 421 is connected to the communication chip 3, and is used for converting the transmission signal of the first frequency sent by the communication chip 3 into the LiFi of the second frequency when the second signal transceiver unit 422 selects the second optical transmitter 21 for communication. Send the signal, and send it through the second optical transmitter 21, and the second signal transceiver unit 422 selects the second optical receiver 22 for communication, converts the LiFi receiving signal of the second frequency into a receiving signal of the first frequency, and sends to the communication chip 3 for processing.

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 . Wherein, the first switch 4121 and the second switch 4221 may be switches such as single-pole double-throw switches, toggle switches, and knob switches, which are not limited in this application.

It can be understood that, in practical applications, the first switch 4121 or the second switch 4221 can also be replaced by two switches, for example, the first switch 4121 is replaced by two switches, one of which is connected to the first frequency conversion unit 411 and the optical The transmitters 11 are respectively connected, and the other switch is connected to the first frequency conversion unit 411 and the optical receiver 12 respectively, and one switch is closed and the other 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, configured to provide a first mixing signal;

The first mixer 4112 is respectively connected to the first signal transceiving unit 412, the first oscillator 4111 and the communication chip 3, and is used to receive the LiFi of the second frequency received by the first optical receiver 12 according to the first mixing signal. The signal is converted into a reception signal of the first frequency and sent to the communication chip 3 for processing, and the transmission signal of the first frequency sent by the communication chip 3 is received, and the transmission signal of the first frequency is converted into a second frequency according to the first mixing signal. Frequency of the LiFi transmission signal, and through the light transmitter 11 for transmission.

The second frequency conversion unit 421 includes a second oscillator 4211 and a second mixer 4212;

a second oscillator 4211, configured to provide a second frequency mixing signal;

The second mixer 4212 is respectively connected to the second signal transceiving unit 422, the second oscillator 4211 and the communication chip 3, and is used to receive the LiFi of the second frequency received by the second optical receiver 22 according to the second mixing signal. The signal is converted into a reception signal of the first frequency and sent to the communication chip 3 for processing, and the transmission signal of the first frequency sent by the communication chip 3 is received, and the transmission signal of the first frequency is converted into a second frequency according to the second mixing signal. Frequency of LiFi sending signal, and send through the second light transmitter 21;

Wherein, the signal frequencies of the first mixed frequency signal and the second mixed frequency signal are the same.

Specifically, the first mixer 4112 and the second mixer 4212 may be any existing mixers with a frequency conversion function, and this application does not make any reference to the types of the first mixer 4112 and the second mixer 4212. limit.

The first oscillator 4111 and the second oscillator 4211 may be any existing oscillators capable of providing frequency mixing signals, and the application does not limit the types of the first oscillator 4111 and the second oscillator 4211 .

Specifically, the first frequency mixing signal may be a local oscillator (Local Oscillator, LO for short) signal, so that the first frequency mixer 4112 may transmit the first frequency transmitted by the communication chip 3 according to the first LO signal provided by the first oscillator 4111. Mix the transmitted signal of the second frequency to the second frequency, and mix the LiFi received 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 can also be an LO signal, so that the second mixer 4212 can mix the transmission signal of the first frequency sent by the communication chip 3 to the second frequency according to the second LO signal provided by the second oscillator 4211, And according to the second LO signal provided by the second oscillator 4211 , the LiFi receiving signal of the second frequency received by the second optical receiver 22 is mixed to the first frequency.

Wherein, the second frequency is the signal frequency of the first frequency minus the first frequency mixing signal (second frequency mixing signal).

It should be noted that, in order to make the first mixer 4112 and the second mixer 4212 perform frequency mixing synchronously, so that the final first optical fidelity LiFi optical module 1 and the second optical fidelity LiFi optical module 2 LiFi communication can be performed synchronously to ensure the correctness of data transmitted by LiFi communication. In the embodiment of this application, the first mixer 4112 and the second mixer 4212 can perform mixing processing synchronously according to the clock signal in the electronic device . Wherein, the clock frequency of the clock signal used by the first mixer 4112 and the second mixer 4212 is the same.

It can be understood that when the electronic device is used as the receiving end of LiFi communication, the first optical receiver 12 can be selected to be connected to the first mixer 4112 through the first switch 4121 through the first switch 4121, and the second optical receiver 12 can be selected through the second switch 4221. The optical receiver 22 is connected to the second mixer 4212 through the second switch 4221, so that the first optical receiver 12 and the second optical receiver 22 can receive the optical signal at the same time, after the first optical receiver 12 receives the optical signal, Through the internal circuit and chip of the first optical fidelity LiFi optical module 1, the optical signal is converted into a LiFi receiving signal of the second frequency, and sent to the first mixer 4112, and the second optical receiver 22 receives the optical signal Afterwards, through the internal circuit and chip of the second optical fidelity LiFi optical module 2, the optical signal is converted into a LiFi receiving signal of the second frequency, and sent to the second mixer 4212, so that the first mixer 4112 and The second mixer 4212 can convert the LiFi receiving signal of the second frequency into the first 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. Receive the signal and send it to the communication chip 3 for processing; when the electronic device is used as the sending end of LiFi communication, the first optical transmitter 11 can be selected through the first switch 4121 to connect with the first mixer 4112 through the switch, and through the second switch 4221 The second optical transmitter 21 is selected to be connected to the second mixer 4212 through the second switch 4221, and the first mixer 4112 and the second mixer 4212 can receive the transmission signal of the first frequency sent by the communication chip 3 at the same time, And respectively according to the first frequency mixing signal provided by the first oscillator 4111 and the second frequency mixing signal provided by the second oscillator 4211, the transmission signal of the first frequency is converted into the LiFi transmission signal of the second frequency, and then passed through the second frequency respectively A light transmitter 11 and a second light transmitter 21 transmit.

Thus, one of the first light transmitter 11 and the light receiver 12 can be selected for communication through the first switch 4121, and one of the second light transmitter 21 and the second light receiver 22 can be selected through the second switch 4221. All the way to communicate, and through the conversion module 4, the frequency conversion of the LiFi reception signal of the second frequency received by the first optical receiver 12 and the second optical receiver 22 is carried out at the same time, and the first frequency of the first frequency sent by the communication chip 3 is simultaneously converted. Sending signals for frequency conversion, so that when the electronic device is used as the receiving end and sending end of LiFi communication, two transmission channels are used to transmit signals of the same frequency at the same time, which improves the transmission rate of LiFi communication, and does not need to use the USB interface of the electronic device The external LiFi module can realize the LiFi communication of the electronic device through the communication chip and its network protocol in the electronic device. Since the original interface of the electronic device does not need to be occupied, it avoids the problem that the occupied interface cannot be used normally during LiFi communication. Other functions improve the convenience of the electronic device, avoid adding a USB interface in the electronic device, save the internal space of the electronic device, ensure the integrity and aesthetics of the electronic device, and improve user experience.

It is worth noting that, in the embodiment of the present application, as shown in FIG. 4 , the first mixer 4112 and the second mixer 4212 can pair the first frequency with the same frequency mixing signal provided by different oscillators respectively. frequency conversion of the received signal or transmitted signal, or, in practical applications, since the first mixer 4112 and the second mixer 4212 use the same frequency mixing signal to perform frequency conversion, therefore, in order to save electronic equipment The internal space reduces the cost of the LiFi communication device. The first mixer 4112 and the second mixer 4212 can also share an oscillator, which is not limited in this application.

In an exemplary embodiment, as shown in FIG. 5 , the first signal transceiving unit 412 may further include: a first amplifier 4122, the input end of the first amplifier 4122 is connected to one end of the first switch 4121, and the output of the first amplifier 4122 The terminal is connected to the first optical transmitter 11 for amplifying the LiFi transmission signal of the second frequency.

Wherein, the first amplifier 4122 may be any device capable of amplifying the voltage or power of a signal, such as an operational amplifier, which is not limited in this application.

By using the first amplifier 4122 to amplify the voltage or power of the LiFi transmission signal of the second frequency before using the first optical transmitter 11 to transmit the LiFi transmission signal of the second frequency, the effect of enhancing the LiFi transmission signal can be achieved, When the LiFi transmission signal of the second frequency is relatively weak, the electronic device can still perform LiFi communication normally.

In an exemplary embodiment, as shown in FIG. 6 , the first signal transceiving unit 412 may further include: a second amplifier 4123, the input terminal of the second amplifier 4123 is connected to the first optical receiver 12, and the output of the second amplifier 4123 The end is connected to the other end of the first switch 4121 for amplifying the LiFi receiving signal of the second frequency.

Wherein, the second amplifier 4123 may be any device capable of amplifying the voltage or power of a signal, such as an operational amplifier, which is not limited in this application.

Before the LiFi reception signal of the second frequency received by the first optical receiver 12 is sent to the first mixer 4112 through the first switch 4121 for processing, the second amplifier 4123 is used to firstly use the second amplifier 4123 to process the LiFi reception signal of the second frequency. Amplifying the voltage or power can achieve the effect of enhancing the LiFi receiving signal, so that when the LiFi receiving signal of the second frequency is relatively weak, the conversion module 4 can still process the LiFi receiving signal of the second frequency normally, so that the electronic equipment can operate normally. LiFi communication.

In an exemplary embodiment, as shown in FIG. 7 , the first signal transceiving unit 412 may also include a first amplifier 4122 and a second amplifier 4123 at the same time, so as to amplify the LiFi received signal at the second frequency and to amplify the second frequency LiFi signal. The second-frequency LiFi sends signals to be amplified to ensure the normal LiFi communication of electronic devices.

It can be understood that, when the first frequency converting unit 411 receives the LiFi receiving signal of the second frequency, and the first frequency converting unit 411 transmits the LiFi sending signal of the second frequency, it can be transmitted through a single-ended network architecture, that is, the second A frequency converting unit 411 transmits the LiFi sending signal of the second frequency obtained through frequency conversion to the first signal transceiving unit 412 through a signal line, and receives the LiFi receiving signal of the second frequency through a signal line, or can also pass Differential network architecture for transmission, that is, the first frequency conversion unit 411 transmits the LiFi transmission signal of the second frequency obtained through frequency conversion to the first signal transceiver unit 412 through two signal lines, and receives the second frequency through two signal lines The LiFi receives the signal. Wherein, the frequency of signals transmitted in the two signal lines is the same.

When the LiFi sending signal of the second frequency or the LiFi receiving signal of the second frequency are transmitted through the differential network architecture, as shown in FIG. 413 is respectively connected with the first frequency conversion unit 411 and the first signal transceiving unit 412, and is used for the first signal transceiving unit 412 to select the two channels output by the first frequency conversion unit 411 when communicating through the first optical transmitter 11. The LiFi transmission signals of the two frequencies are combined into one LiFi transmission signal of the second frequency, and are transmitted through the first optical transmitter 11, and when the first signal transceiving unit 412 selects to communicate through the first optical receiver 12, the first The LiFi receiving signal of the second frequency transmitted by the signal transceiving unit 412 is divided into two LiFi receiving signals of the second frequency and transmitted to the first frequency conversion unit 411 for processing.

In specific implementation, 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 in this application.

By using the differential network architecture to transmit LiFi receiving signals and LiFi sending signals, the anti-interference ability of the signals is improved, thereby improving the reliability of LiFi communication.

It should be noted that the structure and principle of the second conversion sub-module 42 are similar to the structure and principle of the first conversion sub-module 41 shown in FIGS. The principle will not be repeated.

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, 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, wherein the second mixer 4212 and the first mixer The frequency converter 4112 shares the first oscillator 4111. Thus, by using the first conversion sub-module 41 and the second conversion sub-module 42 to convert the LiFi signals of the second frequency respectively received by the two LiFi optical modules to be processed by the communication chip 3, and the communication The transmission signal of the first frequency processed by the chip 3 is converted into a LiFi transmission signal of the second frequency suitable for LiFi communication to be transmitted through two LiFi optical modules respectively, so that the electronic device does not need to use a USB interface to connect an external LiFi module. The integrated circuit inside the electronic device can realize LiFi communication, which expands the communication application range of the electronic device. And because the signal is transmitted through two transmission channels, the frequency of the two signals is the same, and the total bandwidth is twice that of the signal transmission through the single channel, so the transmission rate is also twice that of the signal transmission through the single channel, so the increase The transmission rate of LiFi communication is increased.

It is worth noting that in the embodiment of this application, by setting two optical modules and using two transmission paths for signal transmission, the total bandwidth is twice that of signal transmission through a single path, and the corresponding transmission rate is also In practical applications, signal transmission through multiple transmission channels can be flexibly set according to needs, so that the transmission rate can reach multiple times that of single channel signal transmission.

In order to implement the above embodiments, the present application further proposes an electronic device, wherein the electronic device includes the LiFi communication device as described in the embodiment of the first aspect.

It should be noted that the foregoing explanations of the communication device embodiment of the electronic device are also applicable to the electronic device of this embodiment, and its implementation principles are similar, so details are not repeated here.

Wherein, the electronic device may be a smart phone, a tablet computer, a personal digital assistant, etc., which is not limited in this application.

The electronic equipment provided by the embodiment of the present application includes a LiFi communication device, and the communication device includes two optical fidelity LiFi optical modules for LiFi communication, a communication chip, and a conversion module. The sending signal of the first frequency is converted into two channels of LiFi sending signals of the second frequency, which are respectively sent through two optical fidelity LiFi optical modules, and the second signals received by the two optical fidelity LiFi optical modules are respectively transmitted. The LiFi receiving signal of the frequency is converted into the WiFi receiving signal of the first frequency and sent to the communication chip for processing. Since the two transmission channels are used to realize the signal transmission of the same frequency, the transmission rate of LiFi communication is improved, and LiFi communication of electronic equipment can be realized without using the USB interface of electronic equipment to connect LiFi modules, which improves the convenience of electronic equipment , saving the internal space of electronic equipment, ensuring the integrity and aesthetics of electronic equipment.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present application.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent modules, segments or portions of code comprising one or more executable instructions for implementing specific logical functions or steps of the process , and the scope of preferred embodiments of the present application includes additional implementations in which functions may be performed out of the order shown or discussed, including in substantially simultaneous fashion or in reverse order depending on the functions involved, which shall It should be understood by those skilled in the art to which the embodiments of the present application belong.

It should be understood that each part of the present application may be realized by hardware, software, firmware or a combination thereof. In the embodiments described above, various steps or methods may be implemented by software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques known in the art: Discrete logic circuits, ASICs with suitable combinational logic gates, Programmable Gate Arrays (PGAs), Field Programmable Gate Arrays (FPGAs), etc.

Those of ordinary skill in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. During execution, one or a combination of the steps of the method embodiments is included.

The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present application, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

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.