Wireless networking screen projection service management method

Abstract

The invention discloses a wireless networking screen projection service management method, and particularly relates to the field of screen projection, a screen projection terminal, a network access device, a signal relay device, a control server, a display terminal and a data processing terminal, the screen projection terminal is connected with the signal relay device through the network access device, the signal relay device communicates with the control server, and the control server communicates with the display terminal. The control server is connected with the display terminal, the data processing terminal is in telecommunication connection with other parts, and the screen projection terminal is used for starting a screen projection function and sending a connection request to the network access equipment; the network access equipment is used for receiving a connection request of the screen projection terminal, acquiring related information of the screen projection terminal and uploading the related information to the control server; by means of multi-dimensional data monitoring and an accurate risk judgment system, fine management of the screen projection process is achieved, under the complex network environment, by optimizing the screen projection strategy, the picture buffering and tearing phenomena are effectively reduced, and the quality and stability of screen projection pictures are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of screen mirroring, and more specifically, to a method for managing wireless networked screen mirroring services. Background Art

[0002] In the application scenario of wireless screen mirroring, with the wide application of multimedia content and the growth of office collaboration needs, wireless networked screen mirroring has become an important way to conveniently display information. However, in the actual process of screen mirroring, complex network environment challenges are often faced. For example, in large conference rooms or event sites, a large number of electronic devices are running simultaneously, resulting in serious interference in the wireless frequency band; the structure and layout of buildings will also cause signal attenuation and occlusion during signal propagation, affecting the screen mirroring effect.

[0003] The currently commonly used wireless networked screen mirroring technologies are unable to effectively cope with problems such as signal fluctuations and unstable transmission rates in the face of complex network environments. Traditional screen mirroring methods only rely on the default network configuration of devices. In the case of strong interference signals and congested frequency bands, it is difficult to automatically select the optimal network channel, resulting in frequent stuttering, buffering, and even screen tearing of the screen mirroring, seriously affecting the user experience and unable to meet the requirements of scenarios with high screen mirroring quality.

[0004] Although some existing screen mirroring technologies can achieve basic screen mirroring functions to a certain extent, there are still many defects. On the one hand, when the network signal strength fluctuates, the existing technologies are unable to quickly and accurately judge the impact degree of signal changes on screen mirroring and cannot adjust the screen mirroring strategy in time, resulting in unstable screen mirroring quality. On the other hand, when monitoring screen mirroring-related indicators, there is a lack of a comprehensive and systematic risk assessment system, and only relying on a single indicator for judgment makes it difficult to accurately grasp the potential risks in the entire screen mirroring process.

[0005] In addition, when it is necessary to adjust the screen mirroring strategy, the existing methods are usually relatively simple, such as directly reducing the screen mirroring resolution or frame rate. Although this method can relieve network pressure to a certain extent, it will seriously affect the picture quality and smoothness of screen mirroring and cannot be effectively adjusted while ensuring the screen mirroring quality. Moreover, different network environments and screen mirroring devices require different adaptation strategies, and it is difficult for the existing technologies to make refined adjustments according to the actual situation. Summary of the Invention

[0006] In view of the above problems, the present invention proposes a method for managing wireless networked screen mirroring services. By real-time monitoring multi-dimensional indicators such as network signal strength, actual transmission rate, bit error rate, number of picture buffer times, and number of picture tearing times, multi-faceted risk analysis and accurate risk judgment are carried out, so as to realize refined and intelligent adjustment of screen mirroring strategies. When the network environment changes, it can automatically screen and adapt the network channel, optimize the screen mirroring parameters, while ensuring the screen mirroring quality, improve the stability and smoothness of screen mirroring, and effectively solve the problem of poor screen mirroring effect of the existing technology in a complex network environment.

[0007] To achieve the above object, the present invention provides the following technical solution: A method for managing wireless networked screen mirroring services, characterized in that it includes a screen mirroring terminal, a network access device, a signal relay device, a control server, and a display terminal. The screen mirroring terminal is connected to the signal relay device through the network access device, the signal relay device communicates with the control server, and the control server is connected to the display terminal. The specific steps are as follows:

[0008] S1. The screen mirroring terminal turns on the screen mirroring function and sends a connection request to the network access device. The network access device obtains the wireless frequency band Fw, interference signal strength Is, and terminal transmission power Pt of the screen mirroring terminal, uploads them to the control server, and the control server generates a unique task ID, constructs an initial record of the screen mirroring task, and evaluates the network environment through the data processing terminal;

[0009] S2. According to the network environment status of the screen mirroring terminal, the control server performs screen mirroring operations after screening and adapting the network channel through the signal relay device;

[0010] S3. During the screen mirroring process, the signal relay device real-time monitors the network signal strength Ns, actual transmission rate Tr, and bit error rate Br, and the display terminal monitors the number of picture buffer times Sb and the number of picture tearing times St;

[0011] S4. The data processing terminal establishes a network signal strength threshold Ns def , actual transmission rate threshold Tr def , bit error rate threshold Br def , number of picture buffer times threshold Sb def and number of picture tearing times threshold St def , and at the same time performs screen mirroring risk analysis based on the monitoring results of each item;

[0012] S5. Establish a risk threshold to determine whether screen mirroring strategy adjustment is required through risk judgment;

[0013] S6. When the control server identifies that screen mirroring strategy adjustment is required, it performs adaptation operations.

[0014] The technical effects and advantages of the present invention:

[0015] 1. After the screen mirroring function is enabled on the screen mirroring terminal, the present invention collects information on wireless frequency bands, interference signal strength, and terminal transmission power in multiple aspects, evaluates the network environment with the help of a network environment calculation model, filters and adapts network channels, and during the screen mirroring process, monitors multi-faceted data such as network signal strength, actual transmission rate, bit error rate, and the number of times of screen buffering and tearing in real time. At the same time, a risk factor calculation model and a risk comprehensive index calculation model are established to conduct risk analysis and judgment from multiple angles. This method is not limited to the monitoring and adjustment of a single indicator. On the one hand, it can accurately grasp the screen mirroring risk according to the complex and changeable network conditions, adjust the screen mirroring strategy in a timely and flexible manner, and meet the screen mirroring quality requirements under different network environments to the greatest extent; on the other hand, it avoids the negative impact on the screen mirroring effect caused by blindly adjusting screen mirroring parameters such as simply reducing the resolution or frame rate. While ensuring the smoothness and picture quality of screen mirroring, it reduces the additional burden on the device that may be caused by frequent parameter adjustment, and improves the stability and reliability of the overall screen mirroring system.

[0016] 2. When the present invention identifies that the screen mirroring strategy needs to be adjusted, it can take targeted adaptation operations according to different network change situations. This strategy that is not limited to a single adjustment method ensures the stability of the screen mirroring effect while realizing the continuity of the screen mirroring process, avoids long-term interruptions caused by network switching, reduces the adverse impact on the user experience caused by frequent interruptions of screen mirroring, and at the same time reduces the potential damage to the device caused by frequent switching operations, saving device maintenance costs.

[0017] 3. With the help of multi-dimensional data monitoring and a precise risk judgment system, the present invention realizes the refined management of the screen mirroring process. In a complex network environment, by optimizing the screen mirroring strategy, it effectively reduces the phenomena of screen buffering and tearing, and improves the quality and stability of the screen mirroring picture. For example, by real-time monitoring and analyzing risk factors such as network signal strength risk factors and actual transmission rate risk factors, it can adjust screen mirroring parameters in a timely manner when the network condition deteriorates to ensure smooth playback of the picture. This not only improves the satisfaction of users when using the wireless screen mirroring service, avoids the situation of incomplete or unclear information display caused by screen mirroring quality problems, but also reduces the waste of time and resources caused by the need to re-operate due to screen mirroring failure or poor effect, and realizes the goal of efficient, high-quality, and economical wireless screen mirroring service. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] As shown in the attached Figure 1 A wireless networking screen mirroring service management method includes a screen mirroring terminal, a network access device, a signal relay device, a control server, a display terminal, and a data processing terminal. The screen mirroring terminal is connected to the signal relay device via the network access device. The signal relay device communicates with the control server, the control server is connected to the display terminal, and the data processing terminal is electrically connected to other parts.

[0021] In this embodiment, specifically, it should be noted that: the screen mirroring terminal: is used to turn on the screen mirroring function and send a connection request to the network access device, and provide information about its own wireless frequency band Fw, interference signal strength Is, and terminal transmission power Pt. It should be understood that the screen mirroring terminal provides these information because they have important impacts on network environment assessment and subsequent screen mirroring operations. The wireless frequency band determines the available network channel range, the interference signal strength reflects the interference degree of the current network environment, and the terminal transmission power affects the signal transmission distance and quality. Accurately obtaining these information helps to optimize the screen mirroring network subsequently.

[0022] The network access device: is used to receive the connection request of the screen mirroring terminal, obtain the relevant information of the screen mirroring terminal and upload it to the control server. As a bridge for connecting the screen mirroring terminal and subsequent network devices, accurately transmitting information is the basis for ensuring the smooth progress of the screen mirroring process. Its stable operation can ensure that the information of the screen mirroring terminal reaches the control server in a timely and accurate manner, providing data support for subsequent operations.

[0023] The signal relay device: on the one hand, is connected to the screen mirroring terminal via the network access device, and on the other hand, communicates with the control server, and monitors the network signal strength Ns, actual transmission rate Tr, and bit error rate Br in real time during the screen mirroring process. The signal relay device plays a key role in signal enhancement and transmission monitoring in the entire wireless networking screen mirroring. It can expand the signal coverage range, ensure the stability of the signal during transmission, and at the same time monitor the transmission indicators in real time, providing an important basis for subsequent risk analysis and strategy adjustment.

[0024] The control server: connected to the signal relay device, the display terminal, and the data processing terminal, is responsible for generating a unique task ID, constructing an initial record of the screen mirroring task, evaluating the network environment, screening and adapting the network channel according to the evaluation result, and controlling the screen mirroring operation. When necessary, it performs adaptation operations, coordinates the work of each device, and ensures that the screen mirroring is carried out under the best network conditions by evaluating the network environment and screening the channel. When problems occur, it adjusts the strategy in a timely manner to ensure the smoothness and stability of the screen mirroring.

[0025] The display terminal: used to receive and display the screen mirroring content, and at the same time monitor the number of times of frame buffer Sb and the number of times of screen tearing St. The display terminal is the final presentation device of the screen mirroring content. The number of times of frame buffer and screen tearing monitored by it directly reflects the viewing experience of the screen mirroring, providing intuitive data for evaluating the screen mirroring effect and conducting risk analysis.

[0026] The data processing terminal: responsible for in-depth analysis and processing of data in the entire system. By establishing thresholds and calculation models, it converts the data monitored by each device into information available for decision-making, providing strong support for the control server to adjust the strategy.

[0027] The signal relay device: deployed on the signal relay device, in addition to monitoring the quality of its own relay signal, is also responsible for collecting information such as the number of times of frame buffer Sb and the number of times of screen tearing St feedback by the display terminal to ensure comprehensive control of the screen mirroring image quality.

[0028] The control server: built-in with an intelligent decision-making system, receives the data and analysis results transmitted by the data processing terminal, makes judgments according to the preset thresholds and rules. When it identifies that the screen mirroring strategy needs to be adjusted, it issues instructions in a timely manner to perform adaptation operations, realizing intelligent control of the entire wireless networking screen mirroring process.

[0029] Specifically, it includes the following steps:

[0030] S1. The screen mirroring terminal turns on the screen mirroring function and sends a connection request to the network access device. The network access device obtains the wireless frequency band Fw, interference signal strength Is, and terminal transmission power Pt of the screen mirroring terminal, and uploads them to the control server. The control server generates a unique task ID, constructs an initial record of the screen mirroring task, and evaluates the network environment through the data processing terminal.

[0031] In this embodiment, specifically, it should be noted that: the data processing terminal establishes a network environment calculation model and a preset value α of the network environment quality index DEF , imports the wireless frequency band, interference signal strength, and terminal transmission power into the network environment calculation model to obtain the network environment quality index value. The network environment calculation model is specifically expressed as: Where α represents the calculated network environment quality index value, FW represents the wireless frequency band, Is represents the interference signal strength, Pt represents the terminal transmission power. When α >= α DEF , the current wireless frequency band and terminal transmission power are screened.

[0032] S2. According to the network environment status of the screen mirroring terminal, the control server screens the adapted network channels through the signal relay device and then performs the screen mirroring operation.

[0033] In this embodiment, specifically, it should be noted that when α >= α DEF , the wireless frequency band Fw of the screen mirroring terminal is matched with the supported frequency bands of each channel, and the channel list that supports the current wireless frequency band is screened and represented as Fw1, Fw2,..., Fw n . At the same time, the control server obtains the channel bandwidth B, the channel noise power spectral density N, and the channel fading factor h, and establishes the formula: β i represents the transmission rate of the i-th channel calculated; the channel with the maximum transmission rate is selected as the adapted network channel, and at the same time, the theoretical maximum transmission rate of the adapted network channel is determined as β iMAX .

[0034] S3. During the screen mirroring process, the signal relay device monitors the network signal strength Ns, the actual transmission rate Tr, and the bit error rate Br in real time, and the display terminal monitors the buffer times Sb and the screen tearing times St of the picture.

[0035] S4. The data processing terminal establishes the network signal strength threshold Ns def , the actual transmission rate threshold Tr def , the bit error rate threshold Br def , the picture buffer times threshold Sb def and the picture tearing times threshold St def , and at the same time, performs a screen mirroring risk analysis based on the monitoring results of each item.

[0036] In this embodiment, specifically, it should be noted that the data processing terminal establishes a network signal strength risk factor calculation model: Where D Ns represents the network signal strength risk factor, Ns represents the network signal strength, and Ns def represents the network signal strength threshold. The data processing terminal establishes an actual transmission rate risk factor calculation model: Where D Tr represents the actual transmission rate risk factor, Tr represents the actual transmission rate, and Tr def represents the actual transmission rate threshold. The data processing terminal establishes a bit error rate risk factor calculation model: Where D BrDenotes the bit error rate risk factor, Br denotes the bit error rate, Br def Denotes the bit error rate threshold. The data processing terminal establishes a calculation model for the risk factor of the number of screen buffer times: Wherein, D Sb Denotes the risk factor of the number of screen buffer times, Sb denotes the number of screen buffer times, Sb def Denotes the threshold of the number of screen buffer times. The data processing terminal establishes a calculation model for the risk factor of the number of screen tearing times: Wherein, D St Denotes the risk factor of the number of screen tearing times, St denotes the number of screen tearing times, St def Denotes the threshold of the number of screen tearing times.

[0037] S5. Establish a risk threshold to determine whether a screen mirroring strategy adjustment is required based on the risk;

[0038] In this embodiment, specifically, it should be noted that the data processing terminal sets the comprehensive screen mirroring risk threshold R def , and establishes a calculation model for the comprehensive screen mirroring risk index: Where R represents the comprehensive screen mirroring risk index, D Ns Denotes the network signal strength risk factor, D Tr Denotes the actual transmission rate risk factor, D Br Denotes the bit error rate risk factor, D Sb Denotes the risk factor of the number of screen buffer times, D St Denotes the risk factor of the number of screen tearing times. When R > R def , then a screen mirroring strategy adjustment is required.

[0039] S6. When the control server identifies that a screen mirroring strategy adjustment is required, perform an adaptation operation.

[0040] In this embodiment, specifically, it should be noted that if it is a switch between different access points of the Wi-Fi network, both ends of the instruction are reconfigured for connection. After reconnection, the theoretical maximum transmission rate β of the adapted network channel is recalculated MAX1 . If within 2 minutes, when Tr >= 0.8β MAX1 , then it is determined that the transmission has returned to normal, otherwise a warning signal is sent to the relevant technical personnel. If it is a switch from Wi-Fi to the mobile data network, the screen mirroring resolution is reduced from 1080P to 720P, and the frame rate is reduced from 60fps to 30fps. After the switch is completed, the network signal strength, actual transmission rate, number of screen buffer times, and number of screen tearing times are continuously monitored. If it is stable above -70dBm, meets the requirements of the current screen mirroring resolution and frame rate, is lower than the allowable buffer times of 8 times / minute, and is lower than the allowable tearing times of 5 times / minute, then the screen mirroring effect is considered stable, otherwise the screen mirroring parameters are readjusted and a log is generated for the relevant management personnel.

[0041] Secondly: In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0042] Finally: The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for managing a wireless networking screen mirroring service, characterized in that, It includes a screen mirroring terminal, a network access device, a signal relay device, a control server, a display terminal, and a data processing terminal. The screen mirroring terminal is connected to the signal relay device via the network access device. The signal relay device communicates with the control server. The control server is connected to the display terminal. The data processing terminal is electrically connected to other parts. The specific steps are as follows: S1. The screen mirroring terminal turns on the screen mirroring function and sends a connection request to the network access device. The network access device obtains the wireless frequency band Fw, interference signal strength Is, and terminal transmission power Pt of the screen mirroring terminal, and uploads them to the control server. The control server generates a unique task ID, constructs an initial record of the screen mirroring task, and evaluates the network environment through the data processing terminal; S2. The control server performs a screen mirroring operation after screening and adapting the network channel through the signal relay device according to the network environment status of the screen mirroring terminal; S3. During the screen mirroring process, the signal relay device monitors the network signal strength Ns, actual transmission rate Tr, and bit error rate Br in real time, and the display terminal monitors the number of times of screen buffering Sb and the number of times of screen tearing St; S4. The data processing terminal establishes a network signal strength threshold Ns def , an actual transmission rate threshold Tr def , an error code rate threshold Br def , a screen buffer count threshold Sb def and a screen tearing count threshold St def , and performs screen mirroring risk analysis based on the monitoring results of each item; S5. Establish a risk threshold to determine whether a screen mirroring strategy adjustment is required through risk judgment; S6. When the control server identifies that a screen mirroring strategy adjustment is required, it performs an adaptation operation.

2. The method for managing a wireless networking screen mirroring service according to claim 1, wherein: The evaluation of the network environment is as follows: The data processing terminal establishes a network environment calculation model and a preset value α of the network environment quality index DEF , and imports the wireless frequency band, interference signal strength, and terminal transmission power into the network environment calculation model to obtain a network environment quality index value. The network environment calculation model is specifically expressed as: where α represents the calculated network environment quality index value, FW represents the wireless frequency band, Is represents the interference signal strength, Pt represents the terminal transmission power. When α >= α DEF , the current wireless frequency band and terminal transmission power are screened.

3. The wireless networking screen mirroring service management method according to claim 1, characterized in that: The screening and adaptation of the network channel are as follows: When α >= α DEF , match the wireless frequency band Fw of the screen mirroring terminal with the supported frequency bands of each channel, and filter out the channel list that supports the current wireless frequency band, which is represented as Fw1, Fw2,..., Fw n , and at the same time control the server to obtain the channel bandwidth B, the channel noise power spectral density N, and the channel fading factor h, and establish the formula: β i represents the transmission rate of the i-th channel calculated; select the channel with the maximum transmission rate as the adapted network channel, and at the same time determine that the theoretical maximum transmission rate of the adapted network channel is β iMAX .

4. The method for managing a wireless networking screen mirroring service according to claim 1, wherein: The risk analysis is as follows: The data processing terminal establishes a calculation model for the network signal strength risk factor: where D Ns represents the network signal strength risk factor, Ns represents the network signal strength, and Ns def represents the network signal strength threshold.

5. A method for managing a wireless networked screen mirroring service according to claim 1, characterized in that: The risk analysis is as follows: The data processing terminal establishes a calculation model for the actual transmission rate risk factor: where D Tr represents the actual transmission rate risk factor, Tr represents the actual transmission rate, and Tr def represents the actual transmission rate threshold.

6. A wireless networking screen mirroring service management method according to claim 1, characterized in that: The risk analysis is as follows: The data processing terminal establishes an error rate risk factor calculation model: where D Br represents the error rate risk factor, Br represents the error rate, and Br def represents the error rate threshold.

7. A method for managing a wireless networking screen mirroring service according to claim 1, characterized in that: The risk analysis is as follows: The data processing terminal establishes a calculation model for the risk factor of the screen buffer count: where D Sb represents the risk factor of the screen buffer count, Sb represents the screen buffer count, and Sb def represents the threshold of the screen buffer count.

8. The wireless networking screen mirroring service management method according to claim 1, wherein: The risk analysis is as follows: The data processing terminal establishes a calculation model for the risk factor of the number of screen tears: Among them, D St represents the risk factor of the number of screen tears, St represents the number of screen tears, and St def represents the threshold value of the number of screen tears.

9. A method for managing a wireless networking screen mirroring service according to claim 1, characterized in that: The risk judgment is as follows: The data processing terminal sets the comprehensive projection risk threshold R def , and establishes a calculation model for the comprehensive projection risk index: where R represents the comprehensive projection risk index, D Ns represents the network signal strength risk factor, D Tr represents the actual transmission rate risk factor, D Br represents the bit error rate risk factor, D Sb represents the number of times of screen buffering risk factor, D St represents the number of times of screen tearing risk factor. When R > R def , the projection strategy needs to be adjusted.

10. The method for managing a wireless networking screen mirroring service according to claim 1, wherein: The adaptation operation is as follows: If switching to different access points of the Wi-Fi network, the two ends of the instruction are reconfigured for connection. After reconnection, the theoretical maximum transmission rate β of the adapted network channel is recalculated. MAX1 , if within 2 minutes, when Tr ≥ 0.8β MAX1 , it is determined that the transmission has returned to normal; otherwise, a warning signal is sent to the relevant technical personnel. If switching from Wi-Fi to the mobile data network, the screen mirroring resolution is reduced from 1080P to 720P, and the frame rate is reduced from 60fps to 30fps. After the switch is completed, continuously monitor the network signal strength, actual transmission rate, number of times of screen buffering, and number of times of screen tearing. If it is stable above -70dBm, meets the requirements of the current screen mirroring resolution and frame rate, is lower than the allowed number of buffering times of 8 times per minute, and is lower than the allowed number of tearing times of 5 times per minute, then the screen mirroring effect is considered stable; otherwise, readjust the screen mirroring parameters and generate a log for relevant management personnel.

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