CN111917434B - Dual-frequency concurrent communication circuit, dual-frequency signal selection method, television and storage medium - Google Patents

Abstract

The invention discloses a dual-frequency concurrent communication circuit, a dual-frequency signal selection method, a television and a storage medium. The circuit includes a first wireless module, a second wireless module and a main control chip, wherein a first end of the main control chip is connected to a first end of the main control chip. A wireless module is connected, and the second end of the main control chip is connected with a second wireless module; the first wireless module is used to establish a first frequency channel with a dual-band wireless router; the second wireless module is used to establish a dual-band wireless router. The second frequency channel; the main control chip is used for dual-frequency signal transmission or single-frequency signal transmission with the dual-frequency wireless router through the first wireless module and the second wireless module. The present invention can realize concurrent connection of dual-frequency signals with routers through two wireless modules, increase signal bandwidth, reduce signal delay, and also realize selection and switching of single-frequency signals, thereby improving the anti-interference ability of wireless network connection.

Description

Dual-frequency concurrent communication circuit, dual-frequency signal selection method, television and storage medium

technical field

The invention relates to the field of signal transmission, in particular to a dual-frequency concurrent communication circuit, a dual-frequency signal selection method, a television and a storage medium.

Background technique

Existing dual-band wifi routers can usually provide 2.4G or 5G dual-band signals, and smart devices can connect to the router through one of the frequency bands to realize data communication. However, when using a separate frequency band to connect to the router, if the interference signal in this frequency band is strong, the quality of signal transmission will be degraded and the network delay will increase. Switching from a frequency band with strong interference to a more stable frequency band is very complicated, which seriously affects the user experience.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a dual-frequency concurrent communication circuit, a dual-frequency signal selection method, a television and a storage medium, aiming to solve the problem that the existing single-band communication method needs to manually adjust the connected frequency band when the interference is large.

In order to achieve the above purpose, the present invention provides a dual-frequency concurrent communication circuit, comprising a first wireless module, a second wireless module and a main control chip, wherein the first end of the main control chip is connected to the first wireless module, so the second end of the main control chip is connected to the second wireless module;

The first wireless module is used to establish a first frequency channel with a dual-band wireless router; the second wireless module is used to establish a second frequency channel with the dual-band wireless router;

The main control chip is configured to perform dual-frequency signal transmission or single-frequency signal transmission with the dual-frequency wireless router through the first wireless module and the second wireless module.

Optionally, the first wireless module includes a first antenna, a first radio frequency module and a first baseband processing module connected in sequence;

the first antenna, for receiving or transmitting a first frequency signal;

the first radio frequency module, configured to amplify and filter the first frequency signal input by the first baseband processing module, and perform low-noise amplification and filtering of the first frequency signal input by the first antenna;

The first baseband processing module is used to realize the mutual conversion between the data signal and the first frequency signal.

Optionally, the second wireless module includes a second antenna, a second radio frequency module and a second baseband processing module connected in sequence;

the second antenna, for receiving or transmitting a second frequency signal;

the second radio frequency module, configured to amplify and filter the second frequency signal input by the second baseband processing module, and perform low-noise amplification and filtering on the second frequency signal input by the second antenna;

The second baseband processing module is used to realize the mutual conversion between the data signal and the second frequency signal.

Optionally, the first wireless module and the second wireless module are connected to the main control chip through a wireless data interface;

The main control chip is used to detect the signal strength of the first frequency signal and the second frequency signal, and select a main channel from the first frequency channel and the second frequency channel according to the signal strength .

The present invention also provides a dual-frequency signal selection method, the dual-frequency signal selection method is applied to the dual-frequency concurrent communication circuit described above, and the dual-frequency signal selection method includes the following steps:

detecting the signal strength of the first frequency channel and the second frequency channel;

A primary channel path is selected from the first frequency channel and the second frequency channel based on the signal strength.

Optionally, the step of detecting the signal strength of the first frequency channel and the second frequency channel includes:

Calculate the first signal strength corresponding to the first frequency channel according to the first frequency signal sent by the first wireless module;

Calculate the second signal strength corresponding to the second frequency channel according to the second frequency signal sent by the second wireless module.

Optionally, the step of selecting a primary channel path from the first frequency channel and the second frequency channel according to the signal strength includes:

comparing the first signal strength and the second signal strength with a signal strength threshold, respectively;

When the first signal strength is lower than the signal strength threshold, controlling the first frequency channel to be closed;

When the second signal strength is lower than the signal strength threshold, the second frequency channel is controlled to be closed.

Optionally, after the step of comparing the first signal strength and the second signal strength with a signal strength threshold, respectively, the method further includes:

When both the first signal strength and the second signal strength are higher than the signal strength threshold, dual-frequency signal transmission is performed through the first frequency channel and the second frequency channel.

In addition, in order to achieve the above object, the present invention also provides a television, which includes a memory, a processor, and a dual-frequency signal selection program stored in the memory and running on the processor, wherein: the The steps of the dual-frequency signal selection method described above are implemented when the dual-frequency signal selection program is executed by the processor.

In addition, in order to achieve the above object, the present invention also provides a computer-readable storage medium, where a dual-frequency signal selection program is stored on the computer-readable storage medium, and the dual-frequency signal selection program is executed by a processor to achieve the above The steps of the dual-frequency signal selection method described above.

In the present invention, by setting two wireless modules to be connected to the main control chip, the two wireless modules can be respectively connected to the two frequency bands of the same dual-band wireless router to realize data communication. When the two frequency bands can transmit data normally, it can Dual-frequency concurrent connection is achieved through two wireless modules to achieve the effect of increasing bandwidth and reducing delay. When the signal of one of the frequency bands is greatly interfered, the signal of this frequency band can be disconnected in time, and the signal of the other frequency band can be used as the main channel, so as to realize the automatic switching of the channel without manual operation by the user, and can also improve the resistance of the wireless network connection. Interference ability.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained according to the structures shown in these drawings without creative efforts.

1 is a schematic diagram of a module of an embodiment of a dual-frequency concurrent communication circuit of the present invention;

2 is a schematic flowchart of a first embodiment of a dual-frequency signal selection method according to the present invention;

FIG. 3 is a schematic flowchart of the third embodiment and the fourth embodiment of the dual-frequency signal selection method according to the present invention.

The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Description of reference numbers:

label name label name 10 Master chip 30 second wireless module 20 first wireless module 31 Second baseband processing module twenty one The first baseband processing module 32 second radio frequency module twenty two first radio frequency module 33 second antenna twenty three first antenna 40 Dual Band Wireless Router

Detailed ways

It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relationship between various components under a certain posture (as shown in the accompanying drawings). The relative positional relationship, the movement situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and should not be understood as indicating or implying their relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the protection scope of the present invention.

The present invention provides a dual-frequency concurrent communication circuit, which is applied to an intelligent terminal, and the intelligent terminal can be a mobile terminal device such as a TV, a PC, a smart phone, a tablet computer, an e-book reader, a portable computer, and the like.

Referring to FIG. 1 , in an embodiment, the dual-frequency concurrent communication circuit includes a first wireless module 20 , a second wireless module 30 and a main control chip 10 . The main control chip 10 , the first wireless module 20 and the second wireless module 30 are all disposed on the intelligent terminal. The first end of the main control chip 10 is connected to the first wireless module 20 , and the second end of the main control chip 10 is connected to the second wireless module 30 . The main control chip 10 can be connected to the first wireless module 20 and the second wireless module 30 through two wireless data interfaces, respectively. The wireless data interface can be a USB interface.

The smart terminal can perform wireless network connection with the dual-band wireless router 40 through the first wireless module 20 or the second wireless module 30 . Among them, the dual-band wireless router 40 is a wireless router that works in the 2.4GHz and 5.0GHz frequency bands at the same time, and has two transceiver antennas corresponding to different frequency bands. By connecting to any frequency band, the intelligent terminal can realize network access through the dual-band wireless router 40 . It can be understood that the smart terminal can also perform signal search for the dual-band wireless router 40 through the two wireless modules at the same time, and connect with the two frequency bands of the dual-band wireless router 40 through the two wireless modules at the same time.

The first wireless module 20 may include a first antenna 23 , a first radio frequency module 22 and a first baseband processing module 21 connected in sequence. The first wireless module 20 may establish a first frequency channel with the dual-band wireless router 40, and the first frequency signal in the first frequency channel may be the 2.4 GHz frequency band.

The second wireless module 30 may include a second antenna 33 , a second radio frequency module 32 and a second baseband processing module 31 connected in sequence. The second wireless module 30 may establish a second frequency channel with the dual-band wireless router 40, and the second frequency signal in the second frequency channel may be a 5GHz frequency band.

It can be understood that, in the first wireless module 20, there are a receiving path and a sending path. In the receiving path, the first antenna 23 can receive the first frequency signal from the router and send it to the first radio frequency module 22. After the first radio frequency module 22 performs low noise amplification and filtering on the first frequency signal, it can send it to the first radio frequency module 22. The baseband processing module 21, the first baseband processing module 21 can convert the first frequency signal into a data signal identifiable by the smart terminal and send it to the main control chip 10, such as a display signal, an audio signal, and the like. In the transmission path, the first baseband processing module 21 can receive the data signal sent by the main control chip 10, convert the data signal into a first frequency signal and send it to the first radio frequency module 22. After the first frequency signal is power amplified and filtered, the signal can be sent to the router through the first antenna 23 . That is, the main control chip 10 can implement signal transmission with the dual-frequency wireless router 40 on the first frequency channel through the receiving channel and the transmitting channel in the first wireless module 20 .

Similarly, the main control chip 10 can also implement signal transmission with the dual-frequency wireless router 40 on the second frequency channel through the receiving channel and the transmitting channel in the second wireless module 30 . The first frequency channel is the 2.4GHz frequency band, and the second frequency channel is the 5GHz frequency band. The main control chip 10 can search the two frequency bands of the same dual-band wireless router 40 by starting the two wireless modules, and access the local area network of the dual-band wireless router 40 . When the dual-band wireless router 40 can provide sufficient bandwidth, if the wireless transmission protocols corresponding to the antennas in the first wireless module 20 and the second wireless module 30 are 802.11n+2.4G 300Mbps and 802.11n+5G 300Mbps respectively, then the master The chip 10 can achieve a network connection speed of 600 Mbps bandwidth through two wireless modules using dual-band concurrent connections. And in the case of dual-frequency concurrent, it can also greatly reduce the network delay and improve the user experience.

It should be noted that the first wireless module 20 and the second wireless module 30 are respectively connected to two different baseband processing modules, and are connected to the main control chip 10 through a wireless data interface, so the main control chip 10 can simultaneously pass two wireless The module realizes network communication, and the main control chip 10 is also provided with a software proprietary protocol, which can aggregate and process the data signals input by the two wireless modules.

Further, when the main control chip 10 is connected to the router through two wireless modules, the signal strengths of the first frequency signal and the second frequency signal can also be detected respectively. When the interference of a certain frequency channel is serious, the signal strength corresponding to the frequency signal will be significantly reduced. By detecting the signal strength, a frequency band with better signal transmission quality can be determined from the two frequency channels, and this frequency channel is selected as the main channel. It can be understood that when the main control chip 10 detects and determines that the signal strengths of the two frequency channels are both higher than the preset strength threshold, dual-frequency concurrent communication can be implemented through the two frequency channels respectively. That is, when one of the two frequency channels has large interference and cannot communicate normally, it can automatically switch to another frequency channel with less interference to realize signal communication, without the need for manual adjustment by the user, which improves the user's communication experience. .

The present invention also provides an intelligent terminal, which includes a switching power supply connected to the single-phase mains and a dual-frequency concurrent communication circuit that controls the switching power supply to be turned on or off. The structure of the dual-frequency concurrent communication circuit can refer to The foregoing embodiments are not repeated here. As a matter of course, since the intelligent terminal of this embodiment adopts the technical solution of the above-mentioned dual-frequency concurrent communication circuit, the intelligent terminal has all the beneficial effects of the above-mentioned dual-frequency concurrent communication circuit.

The specific embodiments of the present invention applied to the television are basically the same as the following embodiments of the application of the dual-frequency signal selection method, and will not be repeated here.

Please refer to FIG. 2 , which is a schematic flowchart of a first embodiment of a dual-frequency signal selection method according to the present invention, wherein the dual-frequency signal selection method includes the following steps:

Step S10, detecting the signal strength of the first frequency channel and the second frequency channel;

The terminal in this embodiment may be an intelligent terminal capable of performing network connection with a wireless router, and a TV is used as an example for description below. The TV includes a main control chip, a first wireless module and a second wireless module. The first wireless module and the second wireless module are respectively connected to the main control chip. When the dual-band wireless router provides connection channels of two frequency bands, the main control chip can communicate with the dual-band through the first wireless module and the second wireless module, respectively. The two channels of the wireless router are connected to achieve dual-band concurrent communication. It can be understood that the first wireless module and the second wireless module can be connected to the main control chip through a USB interface, and communicated with the dual-band wireless router through an antenna disposed on the wireless module.

When the main control chip is respectively connected to the first frequency channel and the second frequency channel of the dual-band wireless router through the first wireless module and the second wireless module, the signal strengths in the two channels can be detected respectively.

Step S20, the signal strength selects a main channel path from the first frequency channel and the second frequency channel.

By detecting the signal strength of the two frequency channels, the main control chip can preferentially select the channel with better signal transmission quality from the two channels to realize communication. That is, when the main control chip detects that the signal strength of one of the two channels is insufficient for data communication, the channel can be closed, and the other channel can be used as the main channel to realize data communication.

Further, in the second embodiment of the dual-frequency signal selection method of the present invention, based on the embodiment shown in FIG. 2 above, in step S10, the step of detecting the signal strengths of the first frequency channel and the second frequency channel includes:

Step S11, calculating the first signal strength corresponding to the first frequency channel according to the first frequency signal sent by the first wireless module;

Step S12: Calculate the second signal strength corresponding to the second frequency channel according to the second frequency signal sent by the second wireless module.

In this embodiment, when the main control chip realizes data communication through the first wireless module and the first frequency channel of the dual-band wireless router, the corresponding signal strength RSSI can be obtained by calculating the first frequency signal sent by the first wireless module, That is, the first signal strength. Similarly, the main control chip may also calculate and obtain the second signal strength corresponding to the second frequency signal according to the second frequency signal. When the main control chip calculates the first signal strength and the second signal strength, it can select the main channel path from the first frequency channel and the second frequency channel according to the strength of the first signal strength and the second signal strength.

Further, referring to FIG. 3, FIG. 3 is a schematic flowchart of the third embodiment of the dual-frequency signal selection method according to the present invention. Based on the embodiment shown in FIG. 2 above, in step S20, the signal strength is determined from the first frequency The step of selecting a primary channel path in the channel and the second frequency channel includes:

Step S21, comparing the first signal strength and the second signal strength with a signal strength threshold respectively;

Step S22, when the first signal strength is lower than the signal strength threshold, controlling the first frequency channel to be closed;

Step S23, when the second signal strength is lower than the signal strength threshold, control the second frequency channel to close.

In this embodiment, the signal strength threshold is pre-stored in the main control chip. When the signal strength obtained by detection and calculation is lower than the signal strength threshold, it means that the interference signal in the channel is strong, which easily affects the stability of signal data transmission. sex and accuracy. When the main control chip calculates and obtains the first signal strength and the second signal strength, the first signal strength and the second signal strength can be compared with the signal strength threshold respectively. When the first signal strength is lower than the signal strength threshold, it means that the double The 2.4GHz frequency band of the wireless router is affected by strong interference signals and is no longer suitable as a channel for data communication. At this time, the main control chip can control the first frequency channel to be closed, and realize data transmission through the second frequency channel. Similarly, when it is detected that the second signal strength is lower than the signal strength threshold, it means that the 5GHz frequency band of the dual-band wireless router is affected by strong interference signals and is no longer suitable as a channel for data communication. At this time, the main control chip can control the first The second frequency channel is closed, and data transmission is realized through the first frequency channel. It can be understood that the main control chip can realize the signal strength by monitoring the signal strength corresponding to the two channels in real time.

Further, referring to FIG. 3, FIG. 3 is a schematic flowchart of the fourth embodiment of the dual-frequency signal selection method according to the present invention. In step S21, the first signal strength, the second signal strength and the signal strength threshold are respectively After the comparison steps, also include:

Step S24, when both the first signal strength and the second signal strength are higher than the signal strength threshold, perform dual-frequency signal transmission through the first frequency channel and the second frequency channel.

In this embodiment, when it is determined that the first signal strength and the second signal strength are both higher than the signal strength threshold, the main control chip can communicate with the two frequency bands of the dual-band wireless router through two wireless modules respectively. That is, dual-frequency signal transmission is performed through the first frequency channel and the second frequency channel. In the process of dual-band signal transmission, the actual bandwidth between the main control chip and the router is the sum of the bandwidths of the two channels, and the use of dual-data aggregation can also reduce network latency and improve network transmission efficiency.

In addition, the present invention also provides a computer-readable storage medium, on which a network configuration program of a smart device is stored. The computer-readable storage medium may be at least one of ROM (Read-Only Memory, read-only memory)/RAM (Random Access Memory, random access memory), a magnetic disk, and an optical disk, and the computer-readable storage medium Several instructions are included to enable an intelligent terminal with a main control chip to execute the dual-frequency signal selection method described in each embodiment of the present invention.

The above are only optional embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied to other related technologies Fields are similarly included in the scope of patent protection of the present invention.

Claims (4)

1. A dual-frequency concurrent communication circuit is characterized in that the dual-frequency concurrent communication circuit is applied to an intelligent terminal and comprises a first wireless module, a second wireless module and a main control chip, wherein the first end of the main control chip is connected with the first wireless module, and the second end of the main control chip is connected with the second wireless module;

the first wireless module is used for establishing a first frequency channel with the dual-frequency wireless router; the second wireless module is used for establishing a second frequency channel with the dual-frequency wireless router;

the main control chip is used for carrying out double-frequency signal transmission or single-frequency signal transmission with the double-frequency wireless router through the first wireless module and the second wireless module;

the first wireless module comprises a first antenna, a first radio frequency module and a first baseband processing module which are connected in sequence;

the first antenna is used for receiving or transmitting a first frequency signal;

the first radio frequency module is used for amplifying and filtering a first frequency signal input by the first baseband processing module, and performing low-noise amplification and filtering on the first frequency signal input by the first antenna;

the first baseband processing module is used for realizing the interconversion of the data signal and the first frequency signal;

the second wireless module comprises a second antenna, a second radio frequency module and a second baseband processing module which are connected in sequence;

the second antenna is used for receiving or transmitting a second frequency signal;

the second radio frequency module is configured to amplify and filter a second frequency signal input by the second baseband processing module, and perform low-noise amplification and filtering on a second frequency signal input by the second antenna;

the second baseband processing module is used for realizing the interconversion of the data signal and the second frequency signal;

the first wireless module and the second wireless module are connected with the main control chip through wireless data interfaces;

the main control chip is used for detecting the signal intensity of the first frequency signal and the second frequency signal and selecting a main channel from the first frequency channel and the second frequency channel according to the signal intensity;

and the main control chip detects and determines that the signal intensities of the two frequency channels are higher than a preset intensity threshold value, and realizes dual-frequency concurrent communication through the two frequency channels respectively.

2. A dual-frequency signal selection method applied to the dual-frequency concurrent communication circuit according to claim 1, the dual-frequency signal selection method comprising the steps of:

detecting signal strengths of the first frequency channel and the second frequency channel;

selecting a primary channel path from the first frequency channel and the second frequency channel according to the signal strength;

when the first signal strength and the second signal strength are both higher than the signal strength threshold value, performing dual-frequency signal transmission through a first frequency channel and a second frequency channel;

the step of detecting the signal strength of the first frequency channel and the second frequency channel comprises:

calculating a first signal intensity corresponding to a first frequency channel according to a first frequency signal sent by a first wireless module;

calculating a second signal intensity corresponding to a second frequency channel according to a second frequency signal sent by a second wireless module;

the step of selecting a primary channel path from the first frequency channel and the second frequency channel according to the signal strength comprises:

comparing the first signal strength and the second signal strength with a signal strength threshold value respectively;

controlling a first frequency channel to close when the first signal strength is lower than a signal strength threshold;

and when the second signal strength is lower than a signal strength threshold value, controlling a second frequency channel to be closed.

3. A television comprising a memory, a processor, and a dual-frequency signal selection program stored on the memory and executable on the processor, wherein: the dual frequency signal selection program when executed by the processor implements the steps of the dual frequency signal selection method of claim 2.

4. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a dual-frequency signal selection program, which when executed by a processor implements the steps of the dual-frequency signal selection method of claim 2.

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