CN113691754A

CN113691754A - Signal transmission control method and device, electronic equipment and storage medium

Info

Publication number: CN113691754A
Application number: CN202110941569.8A
Authority: CN
Inventors: 姚胜荣; 张叔晗; 闫富贵
Original assignee: Zhejiang Dahua Technology Co Ltd
Current assignee: Zhejiang Dahua Technology Co Ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2021-11-23
Anticipated expiration: 2041-08-17
Also published as: CN113691754B

Abstract

The application relates to the technical field of intelligent terminals, in particular to a signal transmission control method and device for radio frequency and HDMI source equipment, electronic equipment and a storage medium, which are used for simply and quickly reducing interference in an HDMI signal transmission process and improving efficiency. The method comprises the following steps: when the HDMI signal transmission is carried out, a wireless radio frequency channel of the first terminal working at present is determined; if the fact that the wireless radio frequency channel is interfered by the HDMI signal is determined, adjusting the initial resolution of the HDMI signal at least once to obtain a target resolution, wherein the target resolution is smaller than the initial resolution; HDMI signal transmission is performed at the target resolution. Because this application switches resolution ratio through the HDMI interface intelligence, need not increase physical hardware, does not receive the restriction of equipment parameter, can simply reduce the interference of HDMI signal transmission to radio frequency signal fast.

Description

Signal transmission control method and device, electronic equipment and storage medium

Technical Field

The application relates to the technical field of intelligent terminals, in particular to a signal transmission control method and device for radio frequency and HDMI source equipment, electronic equipment and a storage medium.

Background

With PC (Personal Computer) manufacturers, set-top box manufacturers, display devices, and the like, High Definition Multimedia Interface (HDMI) output with High resolution is gradually supported, High Definition data display applications become more and more extensive, and with the increase of radio frequency signal transmission rate, some audio-visual consumer products are equipped with an HDMI output Interface and a wireless transmission system. However, in the HDMI transmission process, electromagnetic waves are radiated outwards, which causes great interference to WIFI (Wireless-Fidelity) and other Wireless products using 2.4GHz band, resulting in a problem of speed reduction or interruption of WIFI or a slow response of the Wireless mouse.

In the related art, aiming at the interference problem occurring in the HDMI transmission process, the interference is reduced mainly by increasing electromagnetic shielding on the HDMI interface, or increasing a shielding case to isolate radiation energy, or modifying the HDMI interface circuit structure to reduce the energy of a radiation source. However, the above methods all solve the interference problem around the physical properties, and these methods all require the addition of hardware, and when one device is replaced, the parameters of the electromagnetic shielding, such as the material and the size of the shielding case, need to be redesigned, which results in poor product applicability and complex implementation process.

Disclosure of Invention

The embodiment of the application provides a signal transmission control method and device for a radio frequency and HDMI source device, an electronic device and a storage medium, which are used for simply and quickly reducing interference in the HDMI signal transmission process and improving efficiency.

The signal transmission control method for the wireless radio frequency and HDMI source equipment provided by the embodiment of the application comprises the following steps:

when HDMI signal transmission is carried out, a wireless radio frequency channel of a first terminal which works currently is determined, wherein the first terminal is an HDMI source device;

if the fact that the wireless radio frequency channel is interfered by the HDMI signal is determined, adjusting the initial resolution of the HDMI signal at least once to obtain a target resolution, wherein the target resolution is smaller than the initial resolution;

and carrying out HDMI signal transmission according to the target resolution.

In the above embodiment, when it is determined that the first terminal and the second terminal perform HDMI transmission, interference is generated on a wireless radio frequency channel in which the first terminal currently operates, the initial resolution of the HDMI signal is adjusted at least once by the first terminal, so that a target resolution smaller than the initial resolution is obtained, and HDMI signal transmission is performed with the target resolution and the second terminal.

An optional embodiment is that, the adjusting the initial resolution of the HDMI signal at least once to obtain the target resolution includes:

adjusting the initial resolution of each pair of HDMI signals once to obtain the adjusted resolution;

carrying out HDMI signal transmission with a second terminal by using the adjusted resolution, wherein the second terminal is an HDMI display device;

and if the wireless radio frequency channel is still interfered by the HDMI signal, adjusting the current resolution of the HDMI signal again until a preset stop condition is met, and taking the adjusted resolution obtained by the last adjustment as the target resolution.

In the foregoing embodiment, in the embodiment of the present application, the first terminal adjusts the initial resolution when the HDMI signal is transmitted at least once, and after each adjustment, the first terminal needs to perform HDMI signal transmission with the second terminal through the adjusted resolution, and further, whether the HDMI signal at this time will still interfere with the radio frequency channel is determined again. If the fact that the wireless radio frequency channel is still interfered by the HDMI signal is determined, the current resolution of the HDMI signal needs to be adjusted again until the preset stop condition is met, the adjusted resolution obtained by the last adjustment is used as the target resolution, and the first terminal can be adjusted for multiple times to effectively reduce the interference of the HDMI signal on the wireless radio frequency channel.

In an optional embodiment, the preset stop condition includes:

when the HDMI signal transmission is carried out according to the adjusted resolution, the wireless radio frequency channel is not interfered by the HDMI signal; or

And adjusting the resolution ratio of the HDMI signal to reach a preset value.

In the foregoing embodiment, since the number of adjustments is determined according to any one of the preset stop conditions listed above, so as to effectively adjust the resolution when the HDMI signal is transmitted, and further, the adjusted resolution obtained by the last adjustment is taken as the target resolution, so as to provide the target resolution for the first terminal and the second terminal to perform signal transmission.

In an alternative embodiment, the adjusted resolution is obtained by:

selecting a first resolution smaller than the initial resolution from the acquired at least one first resolution, and taking the selected first resolution as the adjusted resolution, wherein the at least one first resolution is a resolution supported by the second terminal; or

And receiving a second resolution sent by the second terminal, and taking the second resolution as an adjusted resolution, wherein the second resolution is a resolution determined by the second terminal according to prompt information after the first terminal sends the prompt information for switching the resolution to the second terminal.

In the above embodiment, the first terminal may select one first resolution smaller than the initial resolution from the acquired at least one first resolution, and use the selected first resolution as the adjusted resolution; or, the first terminal may further receive the second resolution sent by the second terminal, and use the second resolution as the adjusted resolution to obtain the adjusted resolution, so as to provide the target resolution for the signal transmission between the first terminal and the second terminal. That is, the first terminal may actively select one of the first resolutions supported by the second terminal as the adjusted resolution, or may passively receive the adjusted resolution returned by the second terminal, and the adjusted resolution may be flexibly set according to the actual situation.

In an optional implementation manner, the method further includes:

and after the HDMI signal transmission is finished, switching the current resolution to the specified resolution supported by the first terminal.

In the foregoing embodiment, in the embodiment of the present application, after the HDMI signal transmission between the first terminal and the second terminal is completed, the current resolution is switched to the specified resolution supported by the first terminal, so that the first terminal can support any specified resolution after the signal transmission is completed, so that when the HDMI signal transmission is performed again with the second terminal next time, transmission or adjustment can be performed based on the specified resolution, which is simpler and more efficient.

The embodiment of the application provides a wireless radio frequency and HDMI source equipment signal transmission controlling means, includes:

the device comprises a determining unit, a judging unit and a judging unit, wherein the determining unit is used for determining a wireless radio frequency channel of a first terminal which works currently when the HDMI signal is transmitted, and the first terminal is an HDMI source device;

the adjusting unit is used for adjusting the initial resolution of the HDMI signal at least once to obtain a target resolution if the wireless radio frequency channel is determined to be interfered by the HDMI signal, wherein the target resolution is smaller than the initial resolution;

and a transmission unit for performing HDMI signal transmission with a target resolution.

Optionally, the adjusting unit is specifically configured to:

Optionally, the preset stop condition includes:

And adjusting the resolution ratio of the HDMI signal to reach a preset value.

Optionally, the adjusting unit is further configured to obtain the adjusted resolution by:

Optionally, the apparatus further comprises:

and the switching unit is used for switching the current resolution to the specified resolution supported by the first terminal after the HDMI signal transmission is finished.

An electronic device provided in an embodiment of the present application includes a processor and a memory, where the memory stores a program code, and when the program code is executed by the processor, the processor is enabled to execute any one of the above steps of the method for controlling signal transmission of a wireless radio frequency and HDMI source device.

An embodiment of the present application provides a computer-readable storage medium, which includes program code, when the program product runs on an electronic device, the program code is configured to enable the electronic device to execute the steps of the first method for controlling signal transmission between a radio frequency device and an HDMI source device.

The beneficial effect of this application is as follows:

according to the signal transmission control method, the signal transmission control device, the electronic device and the storage medium for the wireless radio frequency and HDMI source device, the first terminal can obtain the resolution from the second terminal, the initial resolution of the HDMI signal is adjusted at least once based on the obtained resolution, the target resolution smaller than the initial resolution is obtained, and signal transmission is performed between the first terminal and the second terminal through the target resolution.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic view of an application scenario of a signal transmission control method for a radio frequency and HDMI source device according to an embodiment of the present application;

fig. 2 is a schematic flowchart of a method for controlling signal transmission of a wireless radio frequency and HDMI source device according to an embodiment of the present disclosure;

fig. 3 is a working block diagram of a signal transmission control terminal for a wireless radio frequency and HDMI source device according to an embodiment of the present disclosure;

fig. 4 is a schematic working logic diagram of a method for controlling signal transmission of a wireless radio frequency and HDMI source device according to an embodiment of the present disclosure;

fig. 5 is a schematic flowchart of another method for controlling signal transmission of a wireless radio frequency and HDMI source device according to an embodiment of the present application;

fig. 6 is a schematic flowchart illustrating a signal transmission control method for a wireless radio frequency and HDMI source device according to an embodiment of the present disclosure;

fig. 7 is a schematic diagram of a signal transmission control apparatus for a radio frequency and HDMI source device according to an embodiment of the present application;

fig. 8 is a schematic diagram of another apparatus for controlling signal transmission of a wireless rf and HDMI source device according to an embodiment of the present application;

fig. 9 is a schematic diagram of a hardware component structure of an electronic device in an embodiment of the present application;

fig. 10 is a schematic diagram of a hardware component structure of a terminal to which an embodiment of the present invention is applied.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the technical solutions of the present application. All other embodiments obtained by a person skilled in the art without any inventive step based on the embodiments described in the present application are within the scope of the protection of the present application.

Some concepts related to the embodiments of the present application are described below.

1. In the embodiment of the present application, the term "and/or" describes an association relationship of associated objects, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

2. The term "terminal" in the embodiments of the present application is an input/output device connected to a computer system, and is usually remote from the computer system. Several categories can be distinguished according to their function. Terminals with some processing functions, called smart terminals or intelligent terminals, have their own microprocessor and control circuits; without this function, called dumb terminal, it has no microprocessor. The terminal supporting conversation or processing with the computer is called an interactive terminal or an online terminal. Such as display terminals, computer terminals, etc. In the embodiment of the present application, the first terminal and the second terminal are different terminals, and the two terminals may perform signal transmission through an HDMI interface.

3. In the embodiment of the present application, the term "HDMI" is a fully digital video and audio transmission interface, which can transmit uncompressed audio and video signals. The HDMI can be used for set-top boxes, DVD players, personal computers, televisions, game hosts, comprehensive amplifiers, digital stereos, televisions and other equipment. HDMI can send audio frequency and video signal simultaneously, because audio frequency and video signal adopt same wire rod, simplifies the installation degree of difficulty of system's circuit greatly. The HDMI in this embodiment is an interface for transmitting signals between the first terminal and the second terminal.

4. In the embodiment of the present application, the term "radio frequency signal" means that when the frequency of the electromagnetic wave is lower than 100kHz, the electromagnetic wave is absorbed by the earth surface and cannot form effective transmission, and once the frequency of the electromagnetic wave is higher than 100kHz, the electromagnetic wave can propagate in the air and be reflected by an ionosphere at the outer edge of the atmosphere to form long-distance transmission capability, and such a high-frequency electromagnetic wave with long-distance transmission capability is called radio frequency. In order to be able to broadcast television signals over the air, it is necessary to modulate the video full television signal into high frequency or radio frequency signals, each occupying a channel, so that multiple television programs can be simultaneously broadcast over the air without causing confusion, for example, as with radio frequency signals.

5. In the embodiment of the present application, the term "Hot Plug Detection" refers to outputting a Detection signal from the display to the host computer. When a digital display such as a display is connected to an HDMI source device through HDMI, the HDMI source device recognizes that the display is connected to the HDMI source device through an HPD pin of HDMI (HPD goes from low level to high level) and responds. In the embodiment of the application, whether the first terminal and the second terminal are connected is detected through the HPD.

The following briefly introduces the design concept of the embodiments of the present application:

along with PC manufacturers, set-top box manufacturers, display equipment and the like, high-definition HDMI output is gradually supported, high-definition data display application is more and more extensive, and along with the improvement of wireless radio frequency signal transmission rate, some audio-visual consumer products are provided with an HDMI output interface and a wireless transmission system at the same time. However, electromagnetic waves are radiated outwards in the HDMI transmission process, and the transmission of radio frequency signals is greatly affected by HDMI, for example, greater interference is generated to WIFI and other wireless products using 2.4GHz frequency band, which causes the problems of speed reduction or interruption, unstable network, low transmission rate, video playing blockage, or slow response of wireless mouse in WIFI.

In view of the foregoing problems, embodiments of the present application provide a method and an apparatus for controlling signal transmission of a radio frequency and HDMI source device, an electronic device, and a storage medium. According to the signal transmission control method of the wireless radio frequency and HDMI source equipment, the output resolution ratio is intelligently switched during HDMI transmission, the influence of HDMI signal transmission on wireless radio frequency signals is reduced, and meanwhile, the influence of HDMI output services is small. Specifically, the resolution ratio can be obtained from the second terminal through the first terminal, the initial resolution ratio of the HDMI signal is adjusted at least once based on the obtained resolution ratio, the target resolution ratio smaller than the initial resolution ratio is obtained, and signal transmission is performed between the first terminal and the second terminal through the target resolution ratio.

The preferred embodiments of the present application will be described below with reference to the accompanying drawings of the specification, it should be understood that the preferred embodiments described herein are merely for illustrating and explaining the present application, and are not intended to limit the present application, and that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Referring to fig. 1, a schematic view of an application scenario of a method for controlling signal transmission of a radio frequency and an HDMI source device according to an embodiment of the present application is shown, where a first terminal is an HDMI source device and a second terminal is an HDMI display device, and a specific implementation flow of the method is as follows: when the first terminal 10 and the second terminal 20 perform HDMI signal transmission, it is determined whether a wireless radio frequency channel in which the first terminal 10 currently operates is interfered by an HDMI signal, and if the first terminal 10 determines that the wireless radio frequency channel is interfered by the HDMI signal, the initial resolution of the HDMI signal is adjusted at least once to obtain a target resolution smaller than the initial resolution, and the first terminal 10 performs HDMI signal transmission with the second terminal 20 through the target resolution.

After the first terminal 10 determines that the currently operating radio frequency channel is interfered by the HDMI signal and before the initial resolution of the HDMI signal is adjusted at least once, the first terminal may further send prompt information for switching the resolution to the second terminal 20, after the second terminal 20 receives the prompt information sent by the first terminal 10, the second terminal 20 determines the second resolution selected by the target object according to the prompt information, and then returns the second resolution to the first terminal 10, so that the first terminal 10 adjusts the initial resolution of the HDMI signal at least once according to the second resolution to obtain a target resolution smaller than the initial resolution, and performs HDMI signal transmission with the second terminal 20 through the target resolution.

The following respectively describes the radio frequency and HDMI source device signal transmission control methods corresponding to the first terminal and the second terminal in detail:

as shown in fig. 2, an embodiment of the present application provides a method for controlling signal transmission of a wireless radio frequency and HDMI source device, including the following steps:

s21: when the first terminal carries out HDMI signal transmission, determining a wireless radio frequency channel of the first terminal which works currently;

the wireless radio frequency channel can be used for transmitting wireless radio frequency signals such as WIFI and Bluetooth.

S22: the first terminal determines that the wireless radio frequency channel is interfered by the HDMI signal, and then at least once adjusts the initial resolution of the HDMI signal to obtain a target resolution smaller than the initial resolution;

the initial resolution of the first terminal in transmitting the HDMI signal may be determined according to a resolution supported by the second terminal, such as a highest resolution supported by the second terminal; alternatively, the initial resolution of the first terminal when transmitting the HDMI signal may also be a specified resolution supported by the first terminal, such as the highest resolution supported by the first terminal.

S23: the first terminal performs HDMI signal transmission with a target resolution.

In the embodiment of the application, when it is determined that the first terminal and the second terminal perform HDMI transmission, interference is generated on a wireless radio frequency channel where the first terminal currently works, the initial resolution of the HDMI signal is adjusted at least once through the first terminal, a target resolution smaller than the initial resolution is obtained, and HDMI signal transmission is performed with the target resolution and the second terminal, that is, only the resolution of the HDMI signal transmission needs to be reduced, physical hardware does not need to be added in the method, the method is not limited by equipment parameters, the adaptability is wide, and the interference of the HDMI signal transmission on the wireless radio frequency signal can be simply and quickly reduced.

The following describes in detail a method for controlling signal transmission of a wireless radio frequency and HDMI source device in the present application with reference to fig. 3:

fig. 3 is a working block diagram of a signal transmission control terminal for a wireless rf and HDMI source device according to an embodiment of the present application. The HDMI source device with the WIFI is a first terminal, the HDMI Sink device (display) is a second terminal, and HDMI signals are transmitted between the HDMI source device and the HDMI Sink device through HDMI cables, and the method specifically comprises the following steps: the HDMI source device outputs an HDMI signal, and the HDMI Sink device receives the HDMI signal output by the HDMI source device. The figure mainly uses WIFI signals and bluetooth signals as radio frequency signals for example to describe in detail.

It should be noted that, the method for controlling signal transmission of the radio frequency and HDMI source device in the embodiment of the present application may be implemented by software, and the method is implemented by deploying relevant software in the HDMI source device. The relevant software may include: HDMI output interface detection module, WIFI2.4G, 5G detection module, bluetooth detection module, interfering signal detection module, control module, these several parts of host computer resolution ratio automatic switch-over module. The functions of each module are specifically described as follows:

and the HDMI output interface detection module is used for detecting whether the HDMI output interface works or not. When the HDMI Sink device is inserted into the HDMI output interface on the HDMI source device, the HDMI source device can output an HDMI signal to the HDMI Sink device through the HDMI cable, and at the moment, the HDMI output interface starts to work; after the HDMI signal transmission is finished, the HDMI Sink device is pulled out, and the HDMI output interface stops working.

WIFI2.4G and 5G detection modules for detecting whether the WIFI module works; when the HDMI source device performs WIFI signal transmission through the WIFI module, for example, when a user starts WIFI, the HDMI source device browses a webpage, browses movies, and the like, and the WIFI module is in a working state.

And the Bluetooth detection module is used for detecting whether the Bluetooth function is started or not. When the HDMI source device performs bluetooth signal transmission through the bluetooth module, for example, when a user starts bluetooth, the HDMI source device is operated by using the wireless mouse, and in this case, the bluetooth module is in a working state.

And the interference signal detection module is used for detecting whether the stray of the HDMI signal influences the normal work of the WIFI module and the Bluetooth module or not and outputting a corresponding threshold value to the control module.

And the control module is used for receiving the threshold value of the interference signal detection module, and sending an instruction to the host resolution automatic switching module after the threshold value reaches the corresponding threshold value so as to enable the HDMI source equipment to switch the output resolution.

Wherein, the spurs refer to the interference of new frequency signals generated in the demodulation process of the receiver to other systems in the communication sense.

In the embodiment of the application, the first terminal scans whether the second terminal is inserted or not at regular time through the HDMI output interface detection module, if the insertion is detected, the first terminal immediately starts the interference signal detection module, and after the interference signal detection module starts to work, whether the stray of the HDMI signal influences the normal work of the WIFI module and the Bluetooth module is detected, and a corresponding threshold value is output to the control module. The control module can determine whether the radio frequency channel is interfered according to the size between the parameters such as the communication delay or the transmission rate of the radio frequency signal and the received related threshold value.

For example, the preset delay threshold is T1, one currently-operating radio frequency signal of the first terminal is used for transmitting a WIFI signal, and when the interference signal detection module detects that the communication delay of the WIFI signal is T2, T2 is greater than T1, that is, it can be determined that the radio frequency channel is interfered.

For another example, the preset rate threshold is V1, one currently-operating radio frequency signal of the first terminal is used for transmitting a WIFI signal, and when the interference signal detection module detects that the transmission rate of the WIFI signal is V2, V2 is smaller than V1, that is, it can be determined that the radio frequency channel is interfered.

It should be noted that, in addition to the above-mentioned determination of whether the currently operating radio frequency channel is interfered according to the transmission rate or the communication delay of the radio frequency signal, other related parameters may also be used for the determination, which is not specifically limited herein.

And the automatic resolution switching module of the host is used for receiving the instruction sent by the control module and automatically switching and outputting the resolution. The instruction sent by the control module may include the size of the resolution that needs to be adjusted at this time, for example, the HDMI 4K 60 frame is switched to the HDMI 4K 30 frame.

The foregoing is only an example that WIFI or bluetooth is used as the radio frequency signal, and the description is given by way of example, and the present invention is also applicable to other radio frequency signals, and is not limited specifically herein.

The following describes the adjustment procedure of the HDMI signal in detail:

in the embodiment of the application, when the first terminal determines that the wireless radio frequency channel is interfered by the HDMI signal, the initial resolution of the HDMI signal is adjusted at least once, and the target resolution smaller than the initial resolution is obtained.

In an optional implementation manner, the first terminal adjusts the initial resolution of each pair of HDMI signals once to obtain an adjusted resolution, and then performs HDMI signal transmission with the second terminal through the adjusted resolution; and if the wireless radio frequency channel is still interfered by the HDMI signal, adjusting the current resolution of the HDMI signal again until a preset stop condition is met, and taking the adjusted resolution obtained by the last adjustment as the target resolution.

Wherein the preset stop condition is at least one of the following conditions:

the first condition is as follows: when the first terminal and the second terminal transmit the HDMI signals through the adjusted resolution, the wireless radio frequency channel is not interfered by the HDMI signals.

And a second condition: and the resolution ratio adjustment times of the HDMI signal by the first terminal reach a preset value.

Assuming that the preset stop condition is one, the initial resolution of the HDMI signal is a1, and when the first terminal determines that one currently operating radio frequency channel for transmitting WIFI signals is interfered by HDMI, the initial resolution a1 may be adjusted to a2(a2< a1), and then HDMI signal transmission is performed with the second terminal through the adjusted resolution a 2; then, the first terminal continues to detect whether the radio frequency channel is still interfered by HDMI, if yes, the adjustment is continued, otherwise, a2 is taken as the final target resolution. If the adjustment needs to be continued, for example, a2 is adjusted to a3(a3< a2), at this time, the first terminal continues to detect whether the radio frequency channel is still interfered by HDMI, and if not, the first terminal stops, at this time, a3 is used as the final target resolution.

Assuming that the preset stop condition is a second condition, for example, the preset value is 3, the initial resolution of the HDMI signal is b1, when the first terminal determines that a currently operating radio frequency channel for transmitting bluetooth signals is interfered by HDMI, the initial resolution b1 may be adjusted to b2(b2< b1), and then it is determined whether the adjustment frequency reaches the preset value, at this time, the adjustment frequency is 1, and the preset value is not reached, the resolution b2 is continuously adjusted to b3(b3< b2), at this time, the adjustment frequency is 2, the preset value is not reached, the resolution b3 is continuously adjusted to b4(b4< b3), at this time, the adjustment frequency is 3, the preset value is reached, and b4 is used as the final target resolution.

In an alternative embodiment, the first terminal obtains the adjusted resolution in the following two ways:

in the first mode, the first terminal selects a first resolution smaller than the initial resolution from the acquired at least one first resolution, and uses the selected first resolution as the adjusted resolution, wherein the at least one first resolution is a resolution supported by the second terminal.

Specifically, the HDMI source device may obtain information of EDID (Extended Display Identification Data) through DDC (Display Data channel) to determine the resolution that the HDMI Sink can support. For example, the acquired resolutions supported by the second terminals such as c1, c2, c3 and the like are obtained, and the first terminal selects one of the resolutions as the adjusted resolution by comparing the resolutions with the current resolution, for example, selects c1 as the adjusted resolution.

And in the second mode, the first terminal receives a second resolution sent by the second terminal, and takes the second resolution as the adjusted resolution, wherein the second resolution is the resolution determined by the second terminal according to the prompt information after the first terminal sends the prompt information for switching the resolution to the second terminal.

Specifically, the first terminal may send the prompt message to the second terminal through a reset instruction, prompt the user to select the second resolution, the second terminal returns the resolution selected by the user to the first terminal, and then the first terminal takes the received second resolution as the target resolution.

For example, the HDMI source device performs HPD reconnection through a soft switch to issue a reset instruction, where the reset instruction is used to instruct the HDMI sink device to communicate with the HDMI source device by actively reducing resolution. The soft switch, namely the HDMI source device, forcibly turns off the HDMI interface output through certain threshold setting, and outputs a signal again when a preset time threshold is reached, so that the HDMI source device is reconnected with the HDMI Sink device.

According to the method, the first terminal can select a first resolution smaller than the initial resolution from at least one acquired first resolution, and the selected first resolution is used as the adjusted resolution; or, the first terminal may further receive the second resolution sent by the second terminal, and use the second resolution as the adjusted resolution to obtain the adjusted resolution, so as to provide the target resolution for the signal transmission between the first terminal and the second terminal. That is, the first terminal may actively select one of the first resolutions supported by the second terminal as the adjusted resolution, or may passively receive the adjusted resolution returned by the second terminal, and the adjusted resolution may be flexibly set according to the actual situation.

In an optional implementation manner, after the first terminal and the second terminal finish the HDMI signal transmission, the first terminal switches the current resolution to the specified resolution supported by the first terminal.

For example, the HDMI source device regularly scans whether an HDMI Sink device is plugged or unplugged through the HDMI output interface detection module, and if the HDMI Sink device is unplugged, the HDMI source device can switch the current resolution to the specified resolution as the highest resolution, for example, to an HDMI 4K 60 frame.

As shown in fig. 4, an embodiment of the present application provides a schematic diagram of a working logic of a signal transmission control method for a radio frequency and an HDMI source device, and a specific working logic is introduced below by taking a first terminal as an HDMI source device and a second terminal as an HDMI Sink device as an example:

the HDMI source device detects through the output interface, and judges whether the HDMI Sink device is detected. And if so, judging whether the HDMI Sink equipment is plugged in or pulled out. If the HDMI source device is plugged in, carrying out WIFI detection, Bluetooth detection and other wireless device work detection, and if the HDMI source device is plugged out, switching the resolution to the highest resolution supported by the HDMI source device; when WIFI detection, Bluetooth detection or other wireless equipment is detected to be in use, interference signal detection is carried out, and whether data transmission exists in a radio frequency signal of source equipment is judged; if so, prompting the user to have interference, further prompting whether to switch the output resolution, if so, switching to lower resolution, and if not, exiting the process. Wherein, if WIFI detection, bluetooth detection or other wireless devices do not use, then continue to work and detect can.

Specifically, the above process can be summarized as the following steps:

step 1: after the HDMI source equipment is powered on, the HDMI source equipment with the WIFI enters a normal working mode;

step 2: the HDMI source device output interface scans whether an HDMI Sink device is inserted at regular time. If detect that HDMI Sink equipment extracts, HDMI source equipment switches the output resolution ratio into the highest resolution ratio that supports, if detect HDMI Sink equipment and insert, HDMI source equipment then carries out WIFI detection, bluetooth detection and other wireless device work detection.

And step 3: the HDMI source device starts to work, and whether WIFI, Bluetooth, other wireless devices and the like in the radio frequency signals work or not is detected. If the wireless equipment is detected to be in use, detecting whether the radio frequency signal of the equipment has data transmission; if yes, prompting the user whether the output resolution is switched or not with interference, if yes, switching to lower resolution, and controlling the output module to switch the resolution of HDMI2.04K 60 frames to HDMI2.04K 30 frames or lower resolution by the HDMI source device.

And 4, step 4: therefore, through the logic cooperation of the HDMI source equipment intelligent switching output resolution and the radio frequency signal receiving and transmitting Interference detection module, the Interference of HDMI signal transmission on wireless radio frequency signals such as WIFI is reduced, the signal transmission rate is reduced through reducing the HDMI output resolution, and the signal rising edge time can be increased to help to improve the EMI (Electromagnetic Interference) performance of the whole machine.

As shown in fig. 5, an embodiment of the present application provides another schematic flow chart of a method for controlling signal transmission of a radio frequency and HDMI source device, including the following steps:

s501: when the second terminal and the first terminal carry out HDMI signal transmission, prompt information which is sent by the first terminal and used for switching resolution is received, wherein the prompt information is sent after the first terminal determines that a currently working radio frequency channel is interfered by an HDMI signal.

S502: and the second terminal determines the second resolution selected by the target object according to the prompt message.

S503: and the second terminal returns the second resolution to the first terminal so that the first terminal adjusts the initial resolution of the HDMI signal at least once according to the second resolution to obtain the target resolution, and the HDMI signal transmission is carried out with the second terminal through the target resolution.

The second terminal may receive a prompt message sent by the first terminal through the Reset instruction, and then the prompt message prompts the user to select the resolution, and returns the resolution selected by the user to the first terminal so that the first terminal determines the target resolution.

According to the embodiment of the application, when the second terminal and the first terminal perform HDMI signal transmission, the prompt information which is sent by the first terminal and used for switching the resolution is received, the target object is determined according to the prompt information to select the second resolution, and then the second resolution is returned to the first terminal, so that the first terminal performs at least one adjustment on the initial resolution of the HDMI signal according to the second resolution to obtain the target resolution, and the HDMI signal transmission is performed with the second terminal through the target resolution.

The method in the embodiment of the present application is summarized below with reference to fig. 6. As shown in fig. 6, an embodiment of the present application provides a specific flowchart of a method for controlling signal transmission of a wireless radio frequency and HDMI source device, including the following steps:

s601: the first terminal detects that the second terminal is inserted through regularly scanning the HDMI output interface;

s602: a first terminal determines a wireless radio frequency channel which works currently;

s603: the first terminal determines that the wireless radio frequency channel is interfered by detecting the communication delay of the wireless radio frequency channel;

s604: the first terminal sends prompt information for indicating resolution switching to the second terminal;

s605: the second terminal prompts the user according to the prompt information;

s606: the second terminal returns the resolution determined by the user to the first terminal;

in implementation, the first terminal sends prompt information to the second terminal to prompt whether to switch the resolution;

s607: the first terminal takes the resolution returned by the second terminal as the adjusted resolution;

s608: the first terminal and the second terminal carry out signal transmission through the adjusted resolution;

s609: the first terminal detects that the wireless radio frequency channel is still interfered;

s6010: the first terminal adjusts the resolution again.

In the implementation: and the first terminal adjusts the resolution ratio again until the wireless radio frequency channel is not interfered or the adjustment times reach a preset value, and the adjustment is stopped.

In conclusion, the resolution ratio is intelligently switched through the HDMI output interface, the signal rising edge time is increased at the timely reduced output signal rate, the EMI performance of the whole machine is improved, and the problem that the transmission rate is reduced slowly due to the fact that the WIFI performance is reduced due to mutual interference of the HDMI and the WIFI in the related art is solved. Under the condition of not increasing hardware cost, the WIFI bandwidth is not reduced, and smooth video experience is brought.

Based on the same inventive concept, the embodiment of the application also provides a signal transmission control device for the wireless radio frequency and the HDMI source equipment. As shown in fig. 7, a signal transmission control apparatus 700 for a radio frequency and HDMI source device is provided in an embodiment of the present application, the apparatus including:

the determining unit 701 is configured to determine a wireless radio frequency channel in which a first terminal currently operates when the HDMI signal is transmitted, where the first terminal is an HDMI source device;

an adjusting unit 702, configured to, if it is determined that the wireless radio frequency channel is interfered by the HDMI signal, adjust the initial resolution of the HDMI signal at least once to obtain a target resolution, where the target resolution is smaller than the initial resolution;

a transmission unit 703 for performing HDMI signal transmission at the target resolution.

Optionally, the adjusting unit 702 is specifically configured to:

Optionally, the preset stop condition includes:

when the HDMI signal transmission is carried out with the adjusted resolution, the wireless radio frequency channel is not interfered by the HDMI signal; or

And adjusting the resolution of the HDMI signal to a preset value.

Optionally, the adjusting unit 702 is further configured to obtain the adjusted resolution by:

selecting a first resolution smaller than the initial resolution from the acquired at least one first resolution, and taking the selected first resolution as an adjusted resolution, wherein the at least one first resolution is a resolution supported by the second terminal; or

And receiving a second resolution sent by the second terminal, and taking the second resolution as the adjusted resolution, wherein the second resolution is the resolution determined by the second terminal according to the prompt information after the first terminal sends the prompt information for switching the resolution to the second terminal.

Optionally, the apparatus further comprises:

and a switching unit 704, configured to switch the current resolution to the specified resolution supported by the first terminal after the HDMI signal transmission is finished.

Based on the same inventive concept, the embodiment of the application also provides a signal transmission control device for the wireless radio frequency and the HDMI source equipment. As shown in fig. 8, another apparatus 800 for controlling signal transmission of a wireless radio frequency and HDMI source device according to an embodiment of the present application includes:

the receiving unit 801 is configured to receive prompt information, which is sent by a first terminal and used for switching resolution, when performing HDMI signal transmission with the first terminal, where the prompt information is sent after the first terminal determines that a currently operating radio frequency channel is interfered by an HDMI signal;

a determining unit 802, configured to determine a second resolution selected by the target object according to the prompt information;

a returning unit 803, configured to return the second resolution to the first terminal, so that the first terminal adjusts the initial resolution of the HDMI signal at least once according to the second resolution to obtain a target resolution, and performs HDMI signal transmission according to the target resolution, where the target resolution is smaller than the initial resolution.

In conclusion, the method only needs to reduce the resolution of the HDMI signal transmission, does not need to increase physical hardware, is not limited by equipment parameters, has wide adaptability, and can simply and quickly reduce the interference of the HDMI signal transmission on the wireless radio frequency signal.

For convenience of description, the above parts are separately described as modules (or units) according to functional division. Of course, the functionality of the various modules (or units) may be implemented in the same one or more pieces of software or hardware when implementing the present application.

The electronic equipment is based on the same inventive concept as the method embodiment, and the embodiment of the application also provides the electronic equipment. In one embodiment, the electronic device may be a first terminal or a second terminal, such as the first terminal 10 or the second terminal 20 shown in FIG. 1. In this embodiment, the electronic device may be configured as shown in fig. 9, and include a memory 901, a communication module 903, and one or more processors 902.

A memory 901 for storing computer programs executed by the processor 902. The memory 901 may mainly include a program storage area and a data storage area, where the program storage area may store an operating system, a program required for running an instant messaging function, and the like; the storage data area can store various instant messaging information, operation instruction sets and the like.

Memory 901 may be a volatile memory (volatile memory), such as a random-access memory (RAM); the memory 901 may also be a non-volatile memory (non-volatile memory), such as a read-only memory (rom), a flash memory (flash memory), a hard disk (HDD) or a solid-state drive (SSD); or the memory 901 is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory 901 may be a combination of the above memories.

The processor 902 may include one or more Central Processing Units (CPUs), a digital processing unit, and the like. The processor 902 is configured to implement the foregoing method for controlling signal transmission of the radio frequency and HDMI source device when calling the computer program stored in the memory 901.

The communication module 903 is used for communicating with terminals and other servers.

The embodiment of the present application does not limit the specific connection medium among the memory 901, the communication module 903, and the processor 902. In the embodiment of the present application, the memory 901 and the processor 902 are connected through the bus 904 in fig. 9, the bus 904 is depicted by a thick line in fig. 9, and the connection manner between other components is merely illustrative and is not limited. The bus 904 may be divided into an address bus, a data bus, a control bus, and the like. For ease of description, only one thick line is depicted in fig. 9, but only one bus or one type of bus is not depicted.

The memory 901 stores a computer storage medium, in which computer-executable instructions are stored, and the computer-executable instructions are used to implement the method for controlling signal transmission of the radio frequency and HDMI source device according to the embodiment of the present application. The processor 902 is configured to execute the above-mentioned wireless rf and HDMI source device signal transmission control method, as shown in fig. 2 or fig. 5.

In another embodiment, the structure of the terminal may be as shown in fig. 10, and includes: a communications component 1010, a memory 1020, a display unit 1030, a camera 1040, a sensor 1050, audio circuitry 1060, a bluetooth module 1070, a processor 1080, and the like.

The communication component 1010 is configured to communicate with a server. In some embodiments, a circuit WIFI module may be included, the WIFI module belongs to a short-distance wireless transmission technology, and the terminal may help the user to send and receive information through the WIFI module.

Memory 1020 may be used to store software programs and data. The processor 1080 performs various functions of the terminal and data processing by executing software programs or data stored in the memory 1020. The memory 1020 may include high speed random access memory and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. The memory 1020 stores an operating system that enables the terminal to operate. The memory 1020 may store an operating system and various application programs, and may also store codes for executing the method for controlling signal transmission of the radio frequency and HDMI source device according to the embodiment of the present application.

The display unit 1030 may also be used to display information input by the user or information provided to the user and a Graphical User Interface (GUI) of various menus of the terminal 20. Specifically, the display unit 1030 may include a display screen 1032 disposed at the front of the terminal. The display 1032 may be configured in the form of a liquid crystal display, a light emitting diode, or the like. The display unit 1030 may be configured to display a prompt information interface in the embodiment of the present application.

The display unit 1030 may also be used to receive input numeric or character information, generate signal inputs related to user settings and function control of the terminal, and particularly, the display unit 1030 may include a touch screen 1031 disposed on the front surface of the terminal, and may collect touch operations of the user thereon or nearby, such as clicking a button, dragging a scroll box, and the like.

The touch screen 1031 may cover the display screen 1032, or the touch screen 1031 and the display screen 1032 may be integrated to implement an input and output function of the terminal, and the integrated function may be referred to as a touch display screen for short. In the present application, the display unit 1030 may display the application program and the corresponding operation steps.

The camera 1040 may be used to capture still images, and the user may post comments on the images captured by the camera 1040 through the application. The number of the cameras 1040 may be one or plural. The object generates an optical image through the lens and projects the optical image to the photosensitive element. The photosensitive element may be a Charge Coupled Device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The light sensing elements convert the light signals into electrical signals which are then passed to a processor 1080 for conversion into digital image signals.

The terminal may also include at least one sensor 1050, such as an acceleration sensor 1051, a distance sensor 1052, a fingerprint sensor 1053, a temperature sensor 1054. The terminal may also be configured with other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, light sensors, motion sensors, etc.

The audio circuitry 1060, speaker 1061, microphone 1062 may provide an audio interface between the user and the terminal. The audio circuit 1060 may transmit the electrical signal converted from the received audio data to the speaker 1061, and convert the electrical signal into a sound signal by the speaker 1061 and output the sound signal. The terminal may be further provided with a volume button for adjusting the volume of the sound signal. On the other hand, the microphone 1062 converts the collected sound signals into electrical signals, which are received by the audio circuit 1060 and converted into audio data, which is then output to the communication module 1010 for transmission to, for example, another terminal or to the memory 1020 for further processing.

The bluetooth module 1070 is used for exchanging information with other bluetooth devices having a bluetooth module through a bluetooth protocol. For example, the terminal may establish a bluetooth connection with a wearable terminal (e.g., a smart watch) having a bluetooth module through the bluetooth module 1070, so as to perform data interaction.

The processor 1080 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by running or executing software programs stored in the memory 1020 and calling data stored in the memory 1020. In some embodiments, processor 1080 may include one or more processing units; processor 1080 may also integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a baseband processor, which primarily handles wireless communications. It is to be appreciated that the baseband processor described above may not be integrated into processor 1080. In the present application, the processor 1080 may run an operating system, an application program, a user interface display, and a touch response, and the method for controlling signal transmission of the radio frequency and HDMI source device according to the embodiment of the present application. Further, processor 1080 is coupled to a display unit 1030.

In some possible embodiments, the aspects of the radio frequency and HDMI source device signal transmission control method provided in this application may also be implemented in the form of a program product including program code for causing a computer device to perform the steps in the radio frequency and HDMI source device signal transmission control method according to various exemplary embodiments of this application described above in this specification when the program product is run on the computer device, for example, the computer device may perform the steps as shown in fig. 2 or fig. 5.

The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

The signal transmission control program product of the embodiments of the present application may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a computing device. However, the program product of the present application is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with a command execution system, apparatus, or device.

A readable signal medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with a command execution system, apparatus, or device.

Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Program code for carrying out operations of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user computing device, partly on the user equipment, as a stand-alone software package, partly on the user computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., through the internet using an internet service provider).

It should be noted that although several units or sub-units of the apparatus are mentioned in the above detailed description, such division is merely exemplary and not mandatory. Indeed, the features and functions of two or more units described above may be embodied in one unit, according to embodiments of the application. Conversely, the features and functions of one unit described above may be further divided into embodiments by a plurality of units.

Further, while the operations of the methods of the present application are depicted in the drawings in a particular order, this does not require or imply that these operations must be performed in this particular order, or that all of the illustrated operations must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A signal transmission control method for wireless radio frequency and HDMI source equipment is characterized by comprising the following steps:

if the first terminal determines that the wireless radio frequency channel is interfered by the HDMI signal, adjusting the initial resolution of the HDMI signal at least once to obtain a target resolution, wherein the target resolution is smaller than the initial resolution;

and carrying out HDMI signal transmission according to the target resolution.

2. The method of claim 1, wherein the adjusting the initial resolution of the HDMI signal at least once to obtain a target resolution comprises:

3. The method of claim 2, wherein the preset stop condition comprises:

And adjusting the resolution ratio of the HDMI signal to reach a preset value.

4. The method of claim 2, wherein the adjusted resolution is obtained by:

5. The method of any of claims 1 to 4, further comprising:

6. An apparatus for controlling signal transmission of a wireless radio frequency and HDMI source device, the apparatus comprising:

the device comprises a determining unit, a judging unit and a judging unit, wherein the determining unit is used for determining a wireless radio frequency channel of the current work of a first terminal when the HDMI signal transmission is carried out;

and the transmission unit is used for carrying out HDMI signal transmission according to the target resolution.

7. The apparatus of claim 6, wherein the adjustment unit is specifically configured to:

8. The apparatus of claim 7, wherein the preset stop condition comprises:

And adjusting the resolution ratio of the HDMI signal to reach a preset value.

9. An electronic device, comprising a processor and a memory, wherein the memory stores program code which, when executed by the processor, causes the processor to perform the steps of the method of any of claims 1 to 5.

10. Computer-readable storage medium, characterized in that it comprises program code for causing an electronic device to carry out the steps of the method according to any one of claims 1 to 5, when said program product is run on said electronic device.