CN113691754B

CN113691754B - Signal transmission control method and device, electronic equipment and storage medium

Info

Publication number: CN113691754B
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: 2023-04-21
Anticipated expiration: 2041-08-17
Also published as: CN113691754A

Abstract

The application relates to the technical field of intelligent terminals, in particular to a wireless radio frequency and HDMI source equipment signal transmission control method, a device, electronic equipment and a storage medium, which are used for simply and rapidly reducing interference in the HDMI signal transmission process and improving efficiency. The method comprises the following steps: when HDMI signal transmission is carried out, determining a wireless radio frequency channel of the first terminal currently working; if the wireless radio frequency channel is determined to be interfered by the HDMI signal, the initial resolution of the HDMI signal is adjusted at least once, and a target resolution is obtained, wherein the target resolution is smaller than the initial resolution; HDMI signal transmission is performed at a target resolution. Because the resolution is intelligently switched through the HDMI interface, physical hardware is not required to be increased, the device parameter is not limited, and the interference of HDMI signal transmission on wireless radio frequency signals can be simply and rapidly reduced.

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 wireless radio frequency and HDMI source equipment signal transmission control method, a device, electronic equipment and a storage medium.

Background

Along with the increase of the transmission rate of wireless radio frequency signals, some audio-visual consumer products are simultaneously provided with an HDMI output interface and a wireless transmission system. However, the HDMI transmission process radiates electromagnetic waves outwards, which causes a large interference to WIFI (Wireless-Fidelity) and other Wireless products using the 2.4GHz band, resulting in a problem of slow down or interruption of WIFI, or slow response of a Wireless mouse.

In the related art, aiming at the interference problem in the HDMI transmission process, electromagnetic shielding is mainly added to an HDMI interface, or a shielding cover is added to isolate radiation energy, or the circuit structure of the HDMI interface is modified to reduce the energy of a radiation source, and the like, so that interference is reduced. However, the above methods all solve the interference problem around physical properties, and all the methods need to add hardware, and when one device is replaced, parameters of electromagnetic shielding, such as shielding case materials, dimensions, etc., need to be redesigned, which results in poor product applicability and complex implementation process.

Disclosure of Invention

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

The embodiment of the application provides a wireless radio frequency and HDMI source device signal transmission control method, which comprises the following steps:

when HDMI signal transmission is carried out, determining a wireless radio frequency channel of a first terminal which is HDMI source equipment;

if the wireless radio frequency channel is determined to be interfered by the HDMI signal, the initial resolution of the HDMI signal is adjusted at least once, and a target resolution is obtained, wherein the target resolution is smaller than the initial resolution;

and performing HDMI signal transmission with 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 to a radio frequency channel currently operated by the first terminal, then the initial resolution of the HDMI signal is adjusted at least once by the first terminal to obtain a target resolution smaller than the initial resolution, and the HDMI signal transmission is performed with the second terminal by the target resolution, that is, the application only needs to reduce the resolution of the HDMI signal transmission.

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

each pair of the initial resolutions of the HDMI signals are adjusted once, and adjusted resolutions are obtained;

performing HDMI signal transmission with a second terminal according to the adjusted resolution, wherein the second terminal is HDMI display equipment;

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

In the above embodiment, since the first terminal adjusts the initial resolution of the HDMI signal at least once, after each adjustment, the first terminal needs to transmit the HDMI signal with the second terminal through the adjusted resolution, and further, determines again whether the HDMI signal will interfere with the radio frequency channel. If it is determined that the wireless radio frequency channel is still interfered by the HDMI signal, the current resolution of the HDMI signal needs to be adjusted again until a preset stop condition is satisfied, and the adjusted resolution obtained by the last adjustment is taken as the target resolution, so that the first terminal can be adjusted for multiple times to more effectively reduce the interference of the HDMI signal on the wireless radio frequency channel.

An alternative embodiment is that the preset stopping 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 alternatively

And the resolution adjustment times of the HDMI signal reach a preset value.

In the above embodiment, since the embodiment of the present application determines the adjustment times according to any one of the preset stop conditions listed above, to effectively adjust the resolution when transmitting the HDMI signal, and further uses the adjusted resolution obtained by the last adjustment as the target resolution, to provide the target resolution for signal transmission by the first terminal and the second terminal.

An alternative embodiment is 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 the adjusted resolution, wherein the at least one first resolution is a resolution supported by the second terminal; or alternatively

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.

In the above embodiment, the first terminal may select a 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 can also receive the second resolution sent by the second terminal, and take the second resolution as the adjusted resolution to obtain the adjusted resolution, so as to provide the target resolution for the signal transmission of the first terminal and the second terminal. That is, the first terminal may actively select one of the first resolutions supported by the current second terminal as the adjusted resolution, or may passively receive the adjusted resolution returned by the second terminal, and may flexibly set the adjusted resolution according to the actual situation.

In an alternative embodiment, the method further comprises:

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

In the above 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 the next time of HDMI signal transmission with the second terminal can be performed or adjusted 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 control device, includes:

the determining unit is used for determining a wireless radio frequency channel of the current working of the first terminal when the HDMI signal is transmitted, wherein the first terminal is HDMI source equipment;

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

and the transmission unit is used for conducting HDMI signal transmission with target resolution.

Optionally, the adjusting unit is specifically configured to:

Optionally, the preset stopping condition includes:

And the resolution adjustment times of the HDMI signal reach a preset value.

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

Optionally, the apparatus further includes:

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.

The electronic device provided by the embodiment of the application includes a processor and a memory, wherein the memory stores program codes, and when the program codes are executed by the processor, the processor executes the steps of any one of the radio frequency and HDMI source device signal transmission control methods.

The embodiment of the application provides a computer readable storage medium, which comprises program code, wherein when the program product runs on electronic equipment, the program code is used for enabling the electronic equipment to execute the steps of the first wireless radio frequency and HDMI source equipment signal transmission control method.

The beneficial effects of the application are as follows:

according to the wireless radio frequency and HDMI source equipment signal transmission control method, device, electronic equipment and storage medium, the first terminal can acquire the resolution from the second terminal, the initial resolution of HDMI signals is adjusted at least once based on the acquired resolution, the target resolution smaller than the initial resolution is obtained, signal transmission is carried out between the first terminal and the second terminal through the target resolution, physical hardware is not required to be increased in the mode, the limitation of equipment parameters is avoided, adaptability is wide, and interference of HDMI signal transmission on a wireless radio frequency channel is effectively reduced.

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 practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof 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 embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

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

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

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 application;

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

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

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

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

fig. 9 is a schematic diagram of a hardware composition structure of an electronic device according to an embodiment of the present application;

fig. 10 is a schematic diagram of a hardware composition structure of a terminal to which the embodiment of the present application is applied.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, 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 apparent that the described embodiments are some embodiments of the technical solutions of the present application, but not all embodiments. All other embodiments, which can be made by a person of ordinary skill in the art without any inventive effort, based on the embodiments described in the present application are intended to be within the scope of the technical solutions of the present application.

Some of the concepts involved in the embodiments of the present application are described below.

1. In the embodiment of the application, the term "and/or" describes the association relationship of the association objects, which means that three relationships may exist, for example, a and/or B may be represented: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

2. The term "terminal" in this embodiment is an input-output device connected to a computer system, and is usually located far from the computer. Depending on the function, several classes can be distinguished. Terminals with certain processing functions are called smart terminals or intelligent terminals, which have their own microprocessors and control circuits; a so-called dumb terminal without this function, which has no microprocessor. Terminals supporting sessions or processes with computers are called interactive terminals or online terminals. Such as a display terminal, a computer terminal, etc. In this embodiment of the present application, the first terminal and the second terminal are different terminals, and signal transmission between the two terminals may be performed through an HDMI interface.

3. The term "HDMI" in the embodiments of the present application is a fully digital video and audio transmission interface that can transmit uncompressed audio and video signals. HDMI can be used for set top boxes, DVD players, personal computers, televisions, game consoles, combination expansion machines, digital audio and television sets, and other devices. HDMI can send audio frequency and video signal simultaneously, because audio frequency and video signal adopt same wire rod, simplify the installation degree of difficulty of system's circuit greatly. In this embodiment, HDMI is an interface for transmitting signals between the first terminal and the second terminal.

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

5. The term "HPD (Hot Plug Detection, hot plug detect)" in the embodiments of the present application 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 there has been a display device connected and responds when the HDMI source device detects that the display is connected to the HDMI source device through the HPD pin of HDMI (HPD from low level to high level). In the embodiment of the application, whether the first terminal is connected with the second terminal is detected through the HPD.

The following briefly describes the design concept of the embodiment of the present application:

along with the gradual support of high-resolution HDMI output by PC manufacturers, set top box manufacturers, display devices and the like, the application of high-definition data display is more and more widely spread, and along with the improvement of wireless radio frequency signal transmission rate, certain audio-visual consumer products are simultaneously provided with an HDMI output interface and a wireless transmission system. However, the HDMI transmission process can radiate electromagnetic waves outwards, and the wireless radio frequency signal transmission is extremely affected by HDMI, for example, the WIFI and other wireless products using the 2.4GHz band are greatly interfered, so that the WIFI is slowed down or interrupted, the network is unstable, the transmission rate is low, the video playing is blocked, or the wireless mouse reacts very slowly.

In view of the above problems, embodiments of the present application provide a method, an apparatus, an electronic device, and a storage medium for controlling signal transmission of a wireless radio frequency and HDMI source device. The wireless radio frequency and HDMI source equipment signal transmission control method in the application intelligently switches output resolution ratio when transmitting through HDMI, so that influence of HDMI signal transmission on wireless radio frequency signals is reduced, and meanwhile, influence on HDMI output service is smaller. Specifically, the first terminal can acquire the resolution from the second terminal, and based on the acquired resolution, the initial resolution of the HDMI signal is adjusted at least once to acquire the target resolution smaller than the initial resolution, and the first terminal and the second terminal are enabled to perform signal transmission through the target resolution.

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

Referring to fig. 1, an application scenario diagram of a method for controlling signal transmission of a wireless radio frequency and HDMI source device is provided, where a first terminal is an HDMI source device and a second terminal is an HDMI display device, and the 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 the radio frequency channel currently operated by the first terminal 10 is interfered by the HDMI signal, if the first terminal 10 determines that the radio frequency channel is interfered by the HDMI signal, the initial resolution of the HDMI signal is adjusted at least once, so as 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 working radio frequency channel is interfered by the HDMI signal, before adjusting the initial resolution of the HDMI signal at least once, the second terminal 20 may further send a prompt message for switching the resolution to the second terminal 20, after the second terminal 20 receives the prompt message sent by the first terminal 10, the second terminal 20 determines the second resolution selected by the target object according to the prompt message, 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, obtains a target resolution smaller than the initial resolution, and performs HDMI signal transmission with the second terminal 20 through the target resolution.

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

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 transmits HDMI signals, determining a wireless radio frequency channel on which the first terminal 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 adjusts the initial resolution of the HDMI signal at least once to obtain a target resolution smaller than the initial resolution;

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

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

In this application embodiment, when confirming that first terminal carries out HDMI transmission with the second terminal, produce the interference to the wireless radio frequency channel of first terminal current work, then carry out at least one time adjustment to the initial resolution of HDMI signal through first terminal, obtain the target resolution that is less than initial resolution, and carry out HDMI signal transmission with the second terminal with target resolution, that is, this application only need reduce HDMI signal transmission's resolution can, this mode does not need to increase physical hardware, do not receive the restriction of equipment parameter, extensive adaptability, can simply reduce HDMI signal transmission to wireless radio frequency signal's interference fast.

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

fig. 3 is a block diagram of a signal transmission control terminal for a wireless radio frequency and HDMI source device according to an embodiment of the present application. The HDMI source device with 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 an HDMI cable, specifically: 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 takes WIFI signals and Bluetooth signals as wireless radio frequency signals as examples for detailed description.

It should be noted that, the method for controlling signal transmission of the wireless radio frequency and HDMI source device in the embodiments of the present application may be implemented by software, and the method is implemented by deploying related software in the HDMI source device. The associated software may include: HDMI output interface detection module, WIFI 2.4G, 5G detection module, bluetooth detection module, interference signal detection module, control module, host resolution ratio automatic switch module. The following describes the functions of each module in detail:

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 the HDMI output interface starts to work at the moment; 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 transmits WIFI signals through the WIFI module, for example, when a user starts up the WIFI, the HDMI source device browses a webpage, browses videos 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 the user turns on bluetooth, the HDMI source device is operated by using a wireless mouse, and in this case, the bluetooth module is in an operating state.

The interference signal detection module is used for detecting whether the WIFI module and the Bluetooth module are normally operated or not due to the fact that the HDMI signal is in a stray state, 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 spurious refers to interference of new frequency signals generated in the demodulation process of a receiver to other systems in the communication meaning.

In this embodiment of the application, whether first terminal has the second terminal to insert through HDMI output interface detection module timing scanning, if detect to insert, first terminal starts interference signal detection module immediately, and interference signal detection module begins the back of working, and whether survey HDMI signal's spurious influences WIFI module and bluetooth module normal work to output corresponding threshold value for control module. The control module can determine whether the wireless radio frequency channel is interfered or not through the size between parameters such as wireless radio frequency signal communication delay or transmission rate and the received relevant threshold value.

For example, the preset delay threshold is T1, a wireless radio frequency signal currently operated by 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, the T2 is greater than T1, so that it can be determined that the wireless radio frequency channel is interfered.

For example, when the preset speed threshold is V1, a wireless radio frequency signal currently operated by the first terminal is used for transmitting a WIFI signal, and when the interference signal detection module detects that the transmission speed of the WIFI signal is V2, V2 is smaller than V1, and it can be determined that the wireless 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 relevant parameters may be used for the determination, which is not limited herein.

The host resolution automatic switching module is used for receiving the instruction sent by the control module and automatically switching the output resolution. The command sent by the control module may include the resolution to be adjusted at this time, for example, switch from HDMI 4k 60 frame to HDMI 4k 30 frame.

The foregoing is merely exemplified by WIFI or bluetooth as the radio frequency signal, and is equally applicable to other radio frequency signals, which are not specifically limited herein.

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

in this embodiment of the present application, when the first terminal determines that the radio frequency channel is interfered by the HDMI signal, the initial resolution of the HDMI signal is adjusted at least once, so as to obtain a target resolution smaller than the initial resolution.

In an alternative embodiment, the first terminal adjusts the initial resolution of the HDMI signal once to obtain an adjusted resolution, and then performs HDMI signal transmission with the second terminal through the adjusted resolution; if the wireless radio frequency channel is still interfered by the HDMI signal, the current resolution of the HDMI signal is adjusted again until a preset stopping condition is met, and the adjusted resolution obtained by the last adjustment is used as the target resolution.

Wherein the preset stopping condition is at least one of the following:

condition one: and when the first terminal and the second terminal carry out HDMI signal transmission through the adjusted resolution ratio, the wireless radio frequency channel is not interfered by the HDMI signal.

Condition II: the resolution adjustment times of the first terminal to the HDMI signal reach a preset value.

Assuming that the preset stopping condition is one, the initial resolution of the HDMI signal is a1, when the first terminal determines that one wireless radio frequency channel for transmitting the WIFI signal currently works is interfered by HDMI, the initial resolution a1 can be adjusted to be a2 (a 2< a 1), and then HDMI signal transmission is carried out with the second terminal through the adjusted resolution a 2; then, the first terminal continues to detect whether the wireless radio frequency channel is still interfered by the HDMI, if so, the adjustment is continued, otherwise, a2 is taken as the final target resolution. If the adjustment is needed, for example, a2 is adjusted to a3 (a 3< a 2), the first terminal continues to detect whether the radio frequency channel is still interfered by HDMI, and if not, stops, and a3 is taken as the final target resolution.

If the preset stopping condition is the condition two, for example, the preset value is 3, the initial resolution of the HDMI signal is b1, when the first terminal determines that a currently working radio frequency channel for transmitting the bluetooth signal is interfered by HDMI, the initial resolution b1 may be adjusted to b2 (b 2< b 1), then it is determined whether the adjustment frequency reaches the preset value, the adjustment frequency is 1, if the adjustment frequency does not reach the preset value, the adjustment frequency is 2, the resolution b2 is continuously adjusted to b3 (b 3< b 2), if the adjustment frequency does not reach the preset value, the resolution b3 is continuously adjusted to b4 (b 4< b 3), and if the adjustment frequency reaches the preset value, b4 is used as the final target resolution.

In an alternative embodiment, the first terminal obtains the adjusted resolution in 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 takes 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 take the information of EDID (Extended Display Identification Data ) through DDC (Display data channel, display data read channel) to determine the resolution that the HDMI Sink can support. For example, the obtained resolutions supported by the second terminal such as c1, c2, c3, etc., 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 a 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 a 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 uses the received second resolution as the target resolution.

For example, the HDMI source device performs HPD reconnection through the 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 using active resolution reduction. The soft switch, i.e. the HDMI source device, forcibly turns off the HDMI interface output by a certain threshold setting, and re-outputs a signal when reaching a predetermined time threshold, so that the HDMI source device is re-connected with the HDMI Sink device.

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

In an alternative embodiment, after the first terminal and the second terminal end HDMI signal transmission, the first terminal switches the current resolution to a specified resolution supported by the first terminal.

For example, the HDMI source device periodically scans whether the HDMI Sink device is plugged in or plugged out through the HDMI output interface detection module, and if the HDMI Sink device is detected to be plugged out, the HDMI source device may switch the current resolution to the highest resolution specified, for example, to the HDMI 4k 60 frame.

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

and the HDMI source device detects through the output interface and judges whether the HDMI Sink device is detected. If so, judging whether the HDMI Sink device is plugged in or plugged out. If the device is plugged in, WIFI detection, bluetooth detection and other wireless equipment work detection are carried out, and if the device is unplugged, the resolution is switched to the highest resolution supported by the HDMI source equipment; when the WIFI detection, the Bluetooth detection or other wireless devices are detected to be in use, the interference signal detection is carried out, and whether the source device radio frequency signal has data transmission or not is judged; if yes, prompting the user to have interference, further prompting whether to switch the output resolution, if yes, switching to lower resolution, and if no, exiting the process. If the WIFI detection, the Bluetooth detection or other wireless devices are detected to be unused, the work detection is continued.

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

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

step 2: the HDMI source device output interface scans whether an HDMI Sink device is inserted or not at regular time. If the HDMI Sink device is detected to be pulled out, the HDMI source device switches the output resolution to the highest supported resolution, and if the HDMI Sink device is detected to be plugged in, the HDMI source device performs WIFI detection, bluetooth detection and other wireless device work detection.

Step 3: the HDMI source device starts to work, and detects whether WIFI, bluetooth, other wireless devices and the like in the radio frequency signals work. If the wireless device is detected to be in use, detecting whether the radio frequency signal of the device has data transmission or not; if yes, prompting the user whether to switch the output resolution or not, if yes, switching to a lower resolution, and switching the HDMI2.0 4K 60 frame resolution to the HDMI2.0 4K 30 frame resolution or lower resolution by the HDMI source device control output module.

Step 4: by repeating the steps, the HDMI source equipment intelligently switches the output resolution and the logic cooperation of the radio frequency signal receiving and transmitting interference detection module, the interference of HDMI signal transmission to wireless radio frequency signals such as WIFI and the like is reduced, the signal transmission rate is reduced by reducing the HDMI output resolution, the rising edge time of the signal can be increased, and the EMI (Electromagnetic Interference, namely electromagnetic interference) performance of the whole machine is improved.

As shown in fig. 5, another flow chart of a signal transmission control method for a wireless radio frequency and HDMI source device is provided in the embodiment of the present application, which includes the following steps:

s501: and when the second terminal and the first terminal perform HDMI signal transmission, receiving prompt information for switching resolution sent by the first terminal, wherein the prompt information is sent after the first terminal determines that the wireless radio frequency channel currently working is interfered by the HDMI signal.

S502: and the second terminal determines the second resolution of the target object selection according to the prompt information.

S503: the second terminal returns the second resolution to the first terminal, so that the first terminal can adjust the initial resolution of the HDMI signal at least once according to the second resolution to obtain the target resolution, and the HDMI signal is transmitted with the second terminal through the target resolution.

The second terminal may receive the prompt message sent by the first terminal through the Reset instruction, so that 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, and the specific implementation process is referred to the above embodiment, and details are not repeated.

Because the embodiment of the application is that when the second terminal and the first terminal perform HDMI signal transmission, the prompt information for switching the resolution sent by the first terminal is received, the target object is determined to select the second resolution according to the prompt information, 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, the target resolution is obtained, and the HDMI signal transmission is performed with the second terminal through the target resolution, namely, only the resolution of the HDMI signal transmission is required to be reduced.

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

s601: the first terminal detects the insertion of the second terminal through the timing scanning HDMI output interface;

s602: the 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 switching resolution 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 the implementation, a first terminal sends prompt information to a second terminal to prompt whether to switch the resolution ratio;

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

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

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

s6010: the first terminal again adjusts the resolution.

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

To sum up, this application is through HDMI output interface intelligent switch resolution, and the speed of the output signal that duly reduces increases signal rising edge time and helps promoting the EMI performance of complete machine, has solved under the correlation technique, HDMI and WIFI mutual interference bring the problem that the WIFI performance reduces transmission rate slowly. 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 of the wireless radio frequency and HDMI source equipment. As shown in fig. 7, a wireless radio frequency and HDMI source device signal transmission control apparatus 700 according to an embodiment of the present application is provided, which includes:

the determining unit 701 is configured to determine, when performing HDMI signal transmission, a radio frequency channel on which the first terminal currently works, where the first terminal is an HDMI source device;

the adjusting unit 702 is configured to adjust the initial resolution of the HDMI signal at least once if it is determined that the radio frequency channel is interfered by the HDMI signal, so as 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 a target resolution.

Optionally, the adjusting unit 702 is specifically configured to:

performing HDMI signal transmission with a second terminal, wherein the second terminal is HDMI display equipment, according to the adjusted resolution;

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

Optionally, the preset stopping condition includes:

The resolution adjustment times of the HDMI signal reach a preset value.

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

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 completed.

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

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

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

and a return 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, obtains a target resolution, and performs HDMI signal transmission through the target resolution, where the target resolution is smaller than the initial resolution.

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

For convenience of description, the above parts are described as being functionally divided into modules (or units) respectively. Of course, the functions of each module (or unit) may be implemented in the same piece or pieces of software or hardware when implementing the present application.

The embodiment of the application also provides electronic equipment based on the same inventive concept as the embodiment of the method. 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, including a memory 901, a communication module 903, and one or more processors 902.

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

The memory 901 may be a volatile memory (RAM) such as a random-access memory (RAM); the memory 901 may also be a nonvolatile 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 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 (central processing unit, CPU) or digital processing units, or the like. The processor 902 is configured to implement the above-mentioned radio frequency and HDMI source device signal transmission control method when calling the computer program stored in the memory 901.

The communication module 903 is used to communicate with terminals and other servers.

The specific connection medium between the memory 901, the communication module 903, and the processor 902 is not limited in the embodiments of the present application. In the embodiment of the present application, the memory 901 and the processor 902 are connected through the bus 904 in fig. 9, and the bus 904 is depicted in a bold line in fig. 9, and the connection manner between other components is only schematically illustrated, and is not limited thereto. 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, for implementing the wireless radio frequency and HDMI source device signal transmission control method according to the embodiments of the present application. The processor 902 is configured to execute the above-mentioned control method for signal transmission of the wireless radio frequency and HDMI source device, as shown in fig. 2 or fig. 5.

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

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

Memory 1020 may be used to store software programs and data. Processor 1080 processes the various functions of the terminal and the data by executing software programs or data stored in memory 1020. Memory 1020 may include high-speed random access memory, but 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 in the present application may store an operating system and various application programs, and may also store codes for executing the method for controlling signal transmission of the wireless radio frequency and HDMI source device in the embodiment of the present application.

The display unit 1030 may also be used to display information input by a user or information provided to the user and a graphical user interface (graphical user interface, GUI) of various menus of the terminal 20. In particular, the display unit 1030 may include a display screen 1032 disposed on the front of the terminal. The display 1032 may be configured in the form of a liquid crystal display, light emitting diodes, or the like. The display unit 1030 may be used to display a prompt interface in an embodiment of the present application.

The display unit 1030 may also be used for receiving input numeric or character information and generating signal inputs related to user settings and function control of the terminal, and in particular, the display unit 1030 may include a touch screen 1031 disposed on the front of the terminal and may collect touch operations thereon or thereabout by a user, such as clicking buttons, dragging scroll boxes, and the like.

The touch screen 1031 may be covered on the display screen 1032, or the touch screen 1031 may be integrated with the display screen 1032 to implement input and output functions of the terminal, and after integration, the touch screen may be simply referred to as a touch screen. The display unit 1030 may display an application program and corresponding operation steps.

The camera 1040 may be used to capture still images, and the user may comment the image captured by the camera 1040 through the application. The camera 1040 may be one or a plurality of cameras. The object generates an optical image through the lens and projects the optical image onto the photosensitive element. The photosensitive element may be a charge coupled device (charge coupled device, CCD) or a Complementary Metal Oxide Semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, which is then passed to a processor 1080 for conversion into a digital image signal.

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, and the like.

Audio circuitry 1060, speakers 1061, microphone 1062 may provide an audio interface between the user and the terminal. Audio circuit 1060 may transmit the received electrical signal after conversion of the audio data to speaker 1061 for conversion by speaker 1061 into an audio signal output. The terminal may also be configured 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 are output to the communication component 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) also provided with a bluetooth module through the bluetooth module 1070, thereby performing 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 that primarily processes operating systems, user interfaces, applications, etc., with a baseband processor that primarily processes wireless communications. It will be appreciated that the baseband processor described above may not be integrated into processor 1080. Processor 1080 in the present application may run an operating system, an application program, a user interface display, a touch response, and a method for controlling signal transmission of a wireless radio frequency and HDMI source device according to the embodiments of the present application. In addition, a processor 1080 is coupled to the display unit 1030.

In some possible embodiments, aspects of the radio frequency and HDMI source device signal transmission control method provided herein may also be implemented in the form of a program product comprising program code for causing a computer device to perform the steps of the radio frequency and HDMI source device signal transmission control method according to the various exemplary embodiments of the present application described herein above when the program product is run on a computer device, e.g. the computer device may perform the steps as shown in fig. 2 or 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. The readable storage medium can be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

The program product of signaling control of embodiments of the present application may employ a portable compact disc read only memory (CD-ROM) and include program code and may 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.

The readable signal medium may include a data signal propagated in baseband or as part of a carrier wave with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. 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's computing device, partly on the user's equipment, as a stand-alone software package, partly on the user's computing device, 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., connected via 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 a division is merely exemplary and not mandatory. Indeed, the features and functions of two or more of the elements described above may be embodied in one element in accordance with embodiments of the present application. Conversely, the features and functions of one unit described above may be further divided into a plurality of units to be embodied.

Furthermore, although the operations of the methods of the present application are depicted in the drawings in a particular order, this is not required to or suggested that these operations must be performed in this particular order or that all of the illustrated operations must be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform.

While 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. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

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 once to obtain the adjusted resolution;

if the wireless radio frequency channel is still interfered by the HDMI signal, the current resolution of the HDMI signal is adjusted again until a preset stopping condition is met, and the adjusted resolution obtained by the last adjustment is used as the target resolution, wherein the target resolution is smaller than the initial resolution;

And performing HDMI signal transmission with the target resolution.

2. The method of claim 1, wherein the preset stop condition comprises:

And the resolution adjustment times of the HDMI signal reach a preset value.

3. The method of claim 1, wherein the adjusted resolution is obtained by:

4. A method according to any one of claims 1 to 3, wherein the method further comprises:

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

the determining unit is used for determining a wireless radio frequency channel of the current working of the first terminal when the HDMI signal is transmitted;

the adjusting unit is used for adjusting the initial resolution of the HDMI signal once to obtain the adjusted resolution if the wireless radio frequency channel is determined to be interfered by the HDMI signal;

and the transmission unit is used for conducting HDMI signal transmission at the target resolution.

6. The apparatus of claim 5, wherein the preset stop condition comprises:

And the resolution adjustment times of the HDMI signal reach a preset value.

7. An electronic device comprising a processor and a memory, wherein the memory stores program code that, when executed by the processor, causes the processor to perform the steps of the method of any of claims 1-4.

8. A computer readable storage medium, characterized in that it comprises a program code for causing an electronic device to perform the steps of the method according to any one of claims 1-4, when the program product is run on said electronic device.