CN118714378A - A switching method for mobile audio and video scheduling terminal - Google Patents

Abstract

The present invention relates to the field of image communication technology, and specifically discloses a switching method for a mobile audio and video scheduling terminal. The method comprises: server state matching, audio and video terminal switching and switching state optimization. Firstly, the audio and video terminal use state index of each terminal user and the abnormal maintenance index of each audio and video terminal are evaluated, the audio and video terminal state of each terminal user is matched, and the audio and video terminal switcher realizes the switching of the terminal user's audio and video terminal, which greatly improves the efficiency of the terminal switching operation. Finally, the switching state of the mobile audio and video scheduling terminal is optimized, the switching waiting time is reduced, the possibility of audio and video signal interruption is reduced, and the use experience of the terminal user is improved. At the same time, the switching state is optimized to ensure the stable switching of audio and video.

Description

A switching method for mobile audio and video scheduling terminal

Technical Field

The present invention relates to the technical field of image communication, and in particular to a switching method for a mobile audio and video scheduling terminal.

Background Art

The current technical solution for scheduling terminal switching is that during the terminal switching, the mobile device will maintain communication with two or more servers at the same time, which will cause additional server resources to be occupied and reduce the resource utilization of the server. At the same time, the terminal switching process is relatively complicated because it needs to coordinate and manage communications between multiple servers, which may lead to increased delays in the switching process and increase the possibility of errors. At the same time, when coordinating and managing communications between multiple servers, external signal interference may increase, resulting in reduced switching performance.

For example, the invention patent with announcement number CN106470326B discloses a terminal switching method for audio and video communication, including: the cloud server determines whether each account needs to be transferred based on the parameter information uploaded by each terminal under the same account; when the account needs to be transferred, the terminal to be called is selected according to the parameter information and/or preset information; the communication data corresponding to the current calling terminal is transferred to the terminal to be called. The present invention also discloses a terminal switching device for audio and video communication; the above application realizes the automatic switching of terminals according to the changes in the scene where the user is in audio and video communication.

For example, the invention patent with announcement number CN111147793B, the above application embodiment provides a switching method, system, electronic device and computer-readable storage medium for a speaking terminal, the method is applied to a visual network, the method includes: during the conduct of a visual network conference, receiving a speaking request sent by a visual network terminal; determining whether there is an available terminal access interface in the speaking area corresponding to the visual network conference; when the available terminal access interface exists in the speaking area, connecting the visual network terminal to the available terminal access interface in the speaking area, so that the speaking visual network terminal can be switched accurately and reliably directly through the visual network scheduling software, enriching the speaking scenes of the visual network conference, avoiding relying on the human eye to capture the video or the conference scene, improving the efficiency of the visual network conference, and improving the user experience.

In combination with the above technical solutions, it is found that with the development of multimedia communication technology and the diversification of mobile terminals, it is necessary to organize more reliable and accurate switching technical solutions for scheduling terminals. However, in the switching solutions of mobile audio and video scheduling terminals, in most cases, only whether the communication connection is successfully established between multiple communication servers during the scheduling process is considered, which makes the quality of the communication connection and the switching accuracy not guaranteed, resulting in the inability to accurately switch the scheduling terminal. Therefore, a more reliable and accurate switching solution for mobile audio and video scheduling terminals is needed.

Summary of the invention

In view of the deficiencies in the prior art, the present invention provides a switching method for a mobile audio and video scheduling terminal, which can effectively solve the problems involved in the above-mentioned background technology.

To achieve the above objectives, the present invention is implemented through the following technical solutions: a switching method for a mobile audio and video scheduling terminal, comprising: server state matching: obtaining the audio and video terminal usage status information of each terminal user and the abnormal information of each audio and video terminal, respectively evaluating the audio and video terminal usage status index of each terminal user and the abnormal maintenance index of each audio and video terminal, thereby matching the audio and video terminal status of each terminal user; audio and video terminal switching: if the connection status between the scheduling server and the audio and video terminal of the terminal user is an interrupted connection state, the audio and video terminal status of the terminal user is switched to a server non-existent state; if the connection status between the scheduling server and the audio and video terminal of the terminal user is a continuous connection state, the audio and video terminal status of the terminal user is switched to a server existing state, thereby realizing the switching status of the audio and video terminal status; switching state optimization: through the switching status of the audio and video terminal status, obtaining the switching information of the terminal user's audio and video terminal, determining the switching quality index of the audio and video terminal switch, thereby optimizing the switching state of the mobile audio and video scheduling terminal.

As a further method, the switching state of the mobile audio and video scheduling terminal is optimized, and the specific analysis process is: the switching quality index of the audio and video terminal switch is compared with the preset quality index threshold. If the switching quality index of the audio and video terminal switch is greater than or equal to the quality index threshold, there is no need to optimize the switching state of the mobile audio and video scheduling terminal; if the switching quality index of the audio and video terminal switch is less than the quality index threshold, the switching quality index of the audio and video terminal switch and the quality index threshold are difference processed to obtain the switching quality deviation value of the audio and video terminal switch, and the switching optimization plan corresponding to each switching quality deviation value interval is matched to obtain the switching optimization plan of the audio and video terminal switch, so as to optimize the switching state of the mobile audio and video scheduling terminal.

As a further method, the switching quality index of the audio and video terminal switch is specifically analyzed as follows: according to the switching information of the terminal user's audio and video terminal, a single switching duration, the number of successful switchings and the number of data packets lost during the switching period of the audio and video terminal switch are extracted; the number of successful switchings of the audio and video terminal switch is ratioed with the total number of switchings of the audio and video terminal switch obtained to obtain the switching success rate of the audio and video terminal switch; the number of data packets lost during the switching period of the audio and video terminal switch is ratioed with the total number of data packets transmitted during the switching period of the audio and video terminal switch obtained to obtain the data packet transmission loss rate of the audio and video terminal switch; a single switching definition duration, a switching definition success rate and a definition loss rate are extracted from the terminal switching management library, and the switching quality index of the audio and video terminal switch is obtained through comprehensive processing.

As a further method, the switching condition of the audio and video terminal status is realized, and the specific analysis process is: according to the audio and video terminal status of each terminal user, wherein the audio and video terminal status includes the server existence status and the server non-existence status; if the connection status between the scheduling server and the audio and video terminal of the terminal user is the interrupted connection status, then the audio and video terminal status of the terminal user is switched to the server non-existence status; if the connection status between the scheduling server and the audio and video terminal of the terminal user is the continuous connection status, then the audio and video terminal status of the terminal user is switched to the server existence status, thereby realizing the switching condition of the audio and video terminal status.

As a further method, the audio and video terminal status of each terminal user is matched, and the specific matching process is: using the audio and video terminal usage status index of each terminal user and the abnormal maintenance index of each audio and video terminal as the input mapping set of the end-to-end matching model, through the matching function of the end-to-end matching model, the output mapping set result of the end-to-end matching model is obtained, and recorded as the audio and video terminal status of each terminal user.

As a further method, the specific analysis process of the audio and video terminal usage status index of each terminal user is as follows: according to the audio and video terminal usage status information of each terminal user, the audio and video terminal attribute information of each terminal user and the time required for the light sensor in the audio and video terminal to complete a sensing operation are extracted, and recorded as the light response duration of the audio and video terminal of each terminal user; the light response duration corresponding to each sensing operation of the light sensor within the terminal management cycle is added to obtain the total light response duration of the audio and video terminal of each terminal user, and the total light response duration of the audio and video terminal of each terminal user is processed by ratio with the light response duration of the audio and video terminal of each terminal user to obtain the light sensitivity of the audio and video terminal of each terminal user, which is multiplied by the correction factor corresponding to the light sensitivity defined in the terminal switching management library to obtain the light sensitivity influence index of the audio and video terminal of each terminal user, and the audio and video terminal usage status index of each terminal user is obtained by comprehensive analysis with the audio and video terminal attribute influence degree coefficient of each terminal user.

As a further method, the abnormal maintenance index of each audio and video terminal is specifically analyzed as follows: according to the abnormal information of each audio and video terminal, the voltage value of each audio and video terminal at each terminal monitoring time point is extracted, and a voltage change scatter plot of each audio and video terminal is constructed. The total number of monitoring time points corresponding to the voltage values below the set lower voltage threshold and above the upper voltage threshold is extracted from the voltage change scatter plot, thereby counting the number of voltage anomalies of each audio and video terminal; the total signal strength value and the total temperature value of each audio and video terminal in the terminal monitoring period are obtained, and the ratio processing is performed with the duration corresponding to the terminal monitoring period respectively to obtain the signal strength mean value of each audio and video terminal in the terminal monitoring period and the temperature mean value of each audio and video terminal in the terminal monitoring period; the influencing factor corresponding to a single voltage anomaly, the defined signal strength and the temperature reference value are extracted from the terminal switching management library, and the abnormal maintenance index of each audio and video terminal is obtained by comprehensive processing.

Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

(1) The present invention provides a switching method for a mobile audio and video scheduling terminal. First, the audio and video terminal usage status index of each terminal user and the abnormal maintenance index of each audio and video terminal are evaluated, and the audio and video terminal status of each terminal user is matched. The audio and video terminal switcher implements the switching of the terminal user's audio and video terminals without manually switching the terminals one by one, which greatly improves the efficiency of the terminal switching operation. Finally, the switching status of the mobile audio and video scheduling terminal is optimized, the switching waiting time is reduced, the possibility of audio and video signal interruption is reduced, and the user experience of the terminal user is improved. At the same time, the switching status is optimized to ensure the stable and safe broadcasting of audio and video.

(2) The present invention obtains the audio and video terminal usage status information and abnormal information of each terminal user, and evaluates the audio and video terminal usage status index and the abnormal maintenance index of each audio and video terminal. By analyzing the audio and video terminal usage status index of each terminal user, the user's satisfaction and actual needs for the audio and video terminal can be understood, so as to optimize the service quality and user experience in a targeted manner; the abnormal maintenance index can reflect the stability and failure rate of the audio and video terminal. By analyzing these indexes, potential faults can be discovered and repaired in time, thereby improving the reliability of terminal switching.

(3) The present invention obtains the switching information of the terminal user's audio and video terminal and determines the switching quality index of the audio and video terminal switcher to ensure that the audio and video signal remains stable during the switching process, reduce signal loss and interference, and thus ensure that the audio and video signal remains high quality after switching, such as clear image and pure sound. In addition, selecting an audio and video terminal switcher with excellent performance can reduce switching failures and downtime, and improve the stability of terminal switching.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

FIG1 is a schematic flow chart of the method of the present invention.

FIG. 2 is a scatter diagram of voltage changes involved in the present invention.

As shown in the attached figure: 1. The upper voltage threshold straight line; 2. The lower voltage threshold straight line.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

As shown in Figure 1, the present invention provides a switching method for mobile audio and video scheduling terminals, including: server status matching: obtaining the audio and video terminal usage status information of each terminal user and the abnormal information of each audio and video terminal, and evaluating the audio and video terminal usage status index of each terminal user and the abnormal maintenance index of each audio and video terminal, thereby matching the audio and video terminal status of each terminal user.

Specifically, the influence coefficient of the audio and video terminal attributes of each terminal user is analyzed in the following specific process:

According to the audio and video terminal usage status information of each terminal user, the audio and video terminal attribute information of each terminal user is extracted.

According to the attribute information of the audio and video terminals of each terminal user, the decibel value of the audio and video terminals of each terminal user at each terminal management time point is obtained, wherein each terminal management time point is obtained by dividing the terminal management period, and the determination of the terminal management period is obtained by the dispatcher based on the attributes, status and other factors of the terminal; the decibel value can be obtained by a sound level meter, which is an instrument specially used to measure the decibel level of sound, and is arranged in order from small to large, and the decibel value ranked first is recorded as the decibel peak value of the audio and video terminals of each terminal user.

The output power of the audio and video terminals of each terminal user at the terminal management time point corresponding to the decibel peak is obtained, wherein the output power can be obtained by measuring the voltage value and current value of the audio and video terminals of each terminal user at the terminal management time point corresponding to the decibel peak by an electric current rheometer and a voltmeter, and then calculated by the power formula, the current value multiplied by the voltage value, and recorded as the maximum instantaneous power of the audio and video terminals of each terminal user.

The decibel defined peak and defined power are extracted from the terminal switching management library.

The data stored in the above-mentioned terminal switching management library is obtained by fitting based on the statistics of switching information of audio and video terminals for multiple times. For example, the defined power is obtained by obtaining the maximum instantaneous power of the audio and video terminals of multiple terminal users, and the dispatching personnel determine that the output power that meets the switching standards of the audio and video terminals is averaged as the defined power. In this way, the value in the terminal switching management library is obtained, and the value may change due to the different properties, states, and usage environments of the audio and video terminals. This embodiment does not make any special restrictions on this.

The decibel peak value of the audio and video terminal of each terminal user is ratioed with the decibel limit peak value to obtain the decibel impact index of the audio and video terminal of each terminal user; the maximum instantaneous power of the audio and video terminal of each terminal user is ratioed with the limit power to obtain the output power impact index of the audio and video terminal of each terminal user.

The decibel impact index of each terminal user's audio and video terminal is added to the output power impact index of each terminal user's audio and video terminal to obtain the audio and video terminal attribute impact degree coefficient S _i of each terminal user.

There is an inversely proportional relationship between the decibel peak value of the audio and video terminals of each terminal user and the maximum instantaneous power of the audio and video terminals of each terminal user and the influence degree coefficient of the audio and video terminal attributes of each terminal user.

Furthermore, the specific analysis process of the audio and video terminal usage status index of each terminal user is as follows:

According to the attribute information of the audio and video terminal of each terminal user, the time required for the light sensor in the audio and video terminal to complete a sensing operation is extracted and recorded as the light response duration of the audio and video terminal of each terminal user.

The time required for the above-mentioned sensing operation is specifically: the time from the time when the light sensor starts to sense the light change to the time when the change signal is output.

The light response duration corresponding to each sensing operation of the light sensor in the terminal management cycle is added up to obtain the total light response duration of the audio and video terminal of each terminal user, and the total light response duration is processed with the light response duration of the audio and video terminal of each terminal user to obtain the light sensitivity of the audio and video terminal of each terminal user, and the total light sensitivity of the audio and video terminal of each terminal user is multiplied by the correction factor corresponding to the light sensitivity defined in the terminal switching management library to obtain the light sensitivity impact index _Gi of the audio and video terminal of each terminal user.

The correction factor corresponding to the above photosensitivity ranges from 0.55 to 0.61.

There is a positive correlation between the light response time of the audio and video terminals of the above-mentioned terminal users and the photosensitivity impact index of the audio and video terminals of the terminal users.

The audio and video terminal usage status index of each terminal user is comprehensively analyzed. In this embodiment, it is obtained by comprehensively analyzing the audio and video terminal attribute influence coefficient of each terminal user and the audio and video terminal light sensitivity influence index of each terminal user. In this way, the audio and video terminal usage status index of each terminal user is determined. In this embodiment, a more accurate calculation method is used to obtain it. The specific expression is:

Wherein δ _i represents the audio and video terminal usage status index of the i-th terminal user. In this embodiment, when the audio and video terminal attribute influence coefficient and the photosensitivity influence index of each terminal user increase, it means that the audio and video terminal usage status of each terminal user is relatively unstable, and the usage status index decreases accordingly, resulting in the switching quality of the audio and video terminal being affected. Therefore, this expression is simplified to weaken the negative impact caused by the increase of the audio and video terminal attribute influence coefficient and the photosensitivity influence index of each terminal user, and enhance the usage stability of the audio and video terminal.

i represents the number of each terminal user, i=1, 2, 3, ..., m, and m represents the total number of terminal users.

S _i represents the influence coefficient of the audio and video terminal attributes of the i-th terminal user, which means that the value of the influence degree of the audio and video terminal attributes of each terminal user is obtained by comprehensive processing of the decibel peak value of the audio and video terminals of each terminal user and the maximum instantaneous power of the audio and video terminals of each terminal user.

_Gi represents the light sensitivity impact index of the audio and video terminal of the i-th terminal user, which means that the light sensitivity impact index of the audio and video terminal of each terminal user is obtained by comprehensive processing of the total light response time of the audio and video terminal during the terminal management cycle by the light sensor and the light response time of the audio and video terminal of each terminal user.

_a1 represents the weight factor corresponding to the predefined audio and video terminal attribute influence coefficient, _a2 represents the weight factor corresponding to the predefined photosensitivity influence index, wherein the weight factor corresponding to the audio and video terminal attribute influence coefficient and the weight factor corresponding to the photosensitivity influence index are obtained by collecting different evaluation factors about the audio and video terminal attributes and photosensitivity influence, assigning an initial weight value to each evaluation factor, performing factor analysis on each evaluation factor, and calculating the weight of each evaluation factor, thereby obtaining the weight factors corresponding to the audio and video terminal attributes and photosensitivity influence, and e is a natural constant.

In this embodiment, the value range of the weight factor corresponding to the audio and video terminal attribute influence coefficient is 0.61 to 0.71, and the weight factor corresponding to the audio and video terminal attribute influence coefficient is set to 0.67. The value range of the weight factor corresponding to the photosensitivity influence index is 0.65 to 0.72, and the weight factor corresponding to the photosensitivity influence index is set to 0.71.

In this embodiment, the audio and video terminal usage status index of each terminal user is shown in Table 1:

Table 1 The value change table between the audio and video terminal usage status index of each terminal user and its corresponding parameters

In this embodiment, according to the table of the audio and video terminal usage status index of each terminal user, when the audio and video terminal attribute influence degree coefficient of each terminal user and the audio and video terminal photosensitivity influence index of each terminal user decrease, the audio and video terminal usage status index of each terminal user shows an upward trend. Therefore, it can be seen that there is an inverse correlation between the audio and video terminal attribute influence degree coefficient of each terminal user and the audio and video terminal photosensitivity influence index of each terminal user and the audio and video terminal usage status index of each terminal user. Therefore, if the audio and video terminal usage status index of each terminal user is to be improved, necessary measures need to be taken on the audio and video terminal attributes and photosensitivity influence to reduce their negative impact.

Specifically, the abnormal maintenance index of each audio and video terminal is analyzed in the following process:

According to the abnormal information of each audio and video terminal, the voltage value of each audio and video terminal at each terminal monitoring time point is extracted, wherein each terminal monitoring time point is obtained by dividing the terminal monitoring period, and the determination of the terminal monitoring period is determined by the monitoring personnel based on the usage status, abnormal status and other factors of the audio and video terminal; the voltage value can be directly measured by a voltmeter, thereby constructing a voltage change scatter plot of each audio and video terminal, and extracting the total number of monitoring time points corresponding to the voltage values lower than the set voltage lower threshold and higher than the voltage upper threshold from the voltage change scatter plot, thereby counting the number of voltage anomalies of each audio and video terminal.

According to the voltage value of each audio and video terminal at each terminal monitoring time point, a voltage change scatter plot of each audio and video terminal is constructed, as shown in Figure 2. The horizontal axis of the voltage change scatter plot is the terminal monitoring time point, the unit is second, and the vertical axis is the voltage, the unit is ampere.

According to the voltage change scatter plot, a voltage lower threshold line and a voltage upper threshold line are located, and the total number of monitoring time points corresponding to voltage values lower than the voltage lower threshold line 2 and higher than the voltage upper threshold line 1 are extracted, thereby counting the number of voltage anomalies of each audio and video terminal.

The total signal strength value and total temperature value of each audio and video terminal during the terminal monitoring period are obtained. The temperature value can be directly measured by a thermometer, and the signal strength can be obtained by testing with a signal strength tester. The signal strength tester is a special device for measuring and displaying signal strength. The ratio processing is performed with the duration corresponding to the terminal monitoring period to obtain the average signal strength of each audio and video terminal during the terminal monitoring period and the average temperature of each audio and video terminal during the terminal monitoring period.

The impact factor, signal strength and temperature reference value corresponding to a single voltage anomaly are extracted from the terminal switching management library, and the abnormal maintenance index of each audio and video terminal is obtained through comprehensive processing.

Specifically, the abnormal maintenance index of each audio and video terminal, in this embodiment, is obtained by comprehensively analyzing the number of voltage anomalies of each audio and video terminal, the average signal strength of each audio and video terminal in the terminal monitoring period, and the average temperature of each audio and video terminal in the terminal monitoring period, so as to determine the abnormal maintenance index of each audio and video terminal. In this embodiment, a more accurate calculation method is used to obtain the abnormal maintenance index. The specific analysis process is as follows:

The number of voltage anomalies of each audio and video terminal is multiplied by the impact factor corresponding to a single voltage anomaly to obtain a voltage anomaly impact index of each audio and video terminal;

The average signal strength of each audio and video terminal in the terminal monitoring period is compared with the defined signal strength to obtain the signal strength impact index of each audio and video terminal in the terminal monitoring period;

The average temperature of each audio and video terminal in the terminal monitoring period is compared with the temperature reference value to obtain the temperature impact index of each audio and video terminal in the terminal monitoring period;

The voltage abnormality impact index of each audio and video terminal, the signal strength impact index of each audio and video terminal in the terminal monitoring period, and the temperature impact index of each audio and video terminal in the terminal monitoring period are added together to obtain the abnormal maintenance index of each audio and video terminal.

The correction factors corresponding to the above-mentioned signal strength and the correction factors corresponding to the temperature are obtained by obtaining different signal strengths and temperatures, analyzing the performance changes of the audio and video terminals under different signal strengths and temperatures, and establishing a mathematical model between the signal strength and temperature and the performance parameters according to the data analysis results. Based on the mathematical model, the corresponding correction factors are calculated; in this embodiment, the value range of the influencing factor corresponding to a single voltage anomaly is 0.39 to 0.45, the value range of the correction factor corresponding to the signal strength is 0.41 to 0.52, the value range of the correction factor corresponding to the temperature is 0.47 to 0.56, and e is a natural constant.

Furthermore, the audio and video terminal status of each terminal user is matched, and the specific matching process is:

The audio and video terminal usage status index of each terminal user and the abnormal maintenance index of each audio and video terminal are used as the input mapping set of the end-to-end matching model, wherein the end-to-end matching model is a deep learning model that directly maps input data to output prediction results. Its main function in this embodiment is to capture the intrinsic features of the data in the input mapping set and send it to one or more specific matching layers for further feature integration and matching, that is, through the matching function of the end-to-end matching model, the output mapping set result of the end-to-end matching model is obtained and recorded as the audio and video terminal status of each terminal user.

In this embodiment, the end-to-end matching model reduces the complexity of the model and the possibility of error accumulation by reducing intermediate processing steps, thereby improving the accuracy of the output mapping set.

Audio and video terminal switching: If the connection status between the scheduling server and the audio and video terminal of the terminal user is disconnected, the audio and video terminal status of the terminal user is switched to the server non-existent status; if the connection status between the scheduling server and the audio and video terminal of the terminal user is continuous, the audio and video terminal status of the terminal user is switched to the server existing status, thereby realizing the switching of the audio and video terminal status.

Specifically, the switching status of the audio and video terminal state is realized, and the specific analysis process is as follows:

According to the audio and video terminal status of each terminal user, the audio and video terminal status includes the server existence status and the server non-existence status.

It should be explained that the above-mentioned server state means various data and information saved by the server in order to process the requests of terminal clients. These status information may include the terminal client's authentication information, session information, request history, data cache, etc. The server state can help the server remember the terminal client's previous requests and calculate progressive responses when new requests arrive, thereby improving processing efficiency; server statelessness means that when the server processes client requests, it does not save or record status information related to a specific terminal client session. The lack of this status information makes each request independent, and the server will not rely on previous requests or session information to respond to the current request. Therefore, even if a server node fails or crashes, it will not affect the request processing on other server nodes, thereby improving the reliability of server responses.

If the connection state between the scheduling server and the audio and video terminal of the terminal user is an interrupted connection state, the audio and video terminal state of the terminal user is switched to a server non-existent state by the audio and video terminal switch; if the connection state between the scheduling server and the audio and video terminal of the terminal user is a continuous connection state, the audio and video terminal state of the terminal user is switched to a server existing state by the audio and video terminal switch, thereby realizing the switching of the audio and video terminal state.

The above-mentioned audio and video terminal switch is a device specially used for switching and distributing video signals and audio signals. It switches multiple signals from the input channel to any channel in the output channel, and the output channels are independent of each other. Some switches allow asynchronous control of video and audio. It has the characteristics of high-performance processor, high definition, long-distance transmission, audio optimization, etc.

Switching state optimization: Through the switching status of the audio and video terminal status, the switching information of the terminal user's audio and video terminal is obtained, and the switching quality index of the audio and video terminal switch is determined, so as to optimize the switching state of the mobile audio and video scheduling terminal.

Furthermore, the switching quality index of the audio and video terminal switch is specifically analyzed as follows:

According to the switching information of the terminal user's audio and video terminal, the single switching duration, number of successful switching and number of data packets lost during the switching cycle of the audio and video terminal switch are extracted. The single switching duration, number of successful switching and number of data packets lost during the switching cycle can all be extracted from the switching summary report of the audio and video terminal switch.

The number of successful switching of the audio and video terminal switch is ratioed with the total number of switching of the audio and video terminal switch. The total number of switching of the audio and video terminal switch and the total number of data packets transmitted by the following audio and video terminal switch during the switching cycle can be extracted from the switching design report to obtain the switching success rate of the audio and video terminal switch.

The number of data packets lost during the switching period of the audio and video terminal switch is ratioed with the total number of data packets transmitted by the audio and video terminal switch during the switching period to obtain the data packet transmission loss rate of the audio and video terminal switch.

The single switching definition duration, switching definition success rate and definition loss rate are extracted from the terminal switching management library, and the switching quality index of the audio and video terminal switch is obtained through comprehensive processing.

Specifically, the switching quality index of the audio and video terminal switch is obtained by comprehensively analyzing the single switching duration of the audio and video terminal switch, the switching success rate of the audio and video terminal switch, and the data packet transmission loss rate of the audio and video terminal switch in this embodiment, so as to determine the switching quality index of the audio and video terminal switch. In this embodiment, a more accurate calculation method is adopted to obtain the switching quality index. The specific analysis process is as follows:

In the formula,

Wherein A represents the switching quality index of the audio and video terminal switch. In this embodiment, if the single switching time of the audio and video terminal switch is long, it means that the success rate of the switching operation of the audio and video terminal switch is not high, thereby reducing the switching quality of the audio and video terminal switch; at the same time, if the data packet transmission loss rate of the audio and video terminal switch is too large, it also means that the success rate of the switching operation of the audio and video terminal switch is small, so as to reduce the switching quality. Therefore, this expression is simplified to reduce the negative impact caused by the interaction between the parameters, so as to improve the switching quality of the audio and video terminal switch.

SC stands for the single switching duration of the audio and video terminal switch, which refers to the time from when the switch receives the switching command to when the audio and video signal is actually switched from one input to another output.

SC′ represents the single switching limit duration, which refers to the maximum allowed single switching duration.

CL is represented by the switching success rate of the audio and video terminal switch, which refers to the ratio of the number of successful switching of the audio and video terminal switch to the total number of switching of the audio and video terminal switch.

CL′ represents the handover success rate, which refers to the minimum value of the handover success rate.

DL is the data packet transmission loss rate of the audio and video terminal switch, which refers to the ratio of the number of data packets lost during the switching period of the audio and video terminal switch to the total number of data packets transmitted during the switching period of the audio and video terminal switch.

DL' stands for the limited loss rate, which refers to the maximum value allowed when discussing the loss rate.

_f1 represents a weight factor corresponding to a predefined single switching duration, _f2 represents a weight factor corresponding to a predefined switching success rate, _{and f3} represents a weight factor corresponding to a predefined data packet transmission loss rate, wherein the weight factor corresponding to a single switching duration, the weight factor corresponding to the switching success rate, and the weight factor corresponding to the data packet transmission loss rate are all determined by determining the importance of the switching duration, the switching success rate, and the data packet transmission loss rate in the entire switching performance index according to the switching quality target of the audio and video switcher, and drawing on the standards of the communication industry and the practical experience of experts in related fields to determine the values of the corresponding weight factors.

S represents the number of successful switching of the audio and video terminal switch, which refers to the number of times the audio and video signal is successfully switched from one input to another output.

ΔS is represented by the total number of switching times of the audio and video terminal switch, which refers to the total number of times the audio and video signal is switched from one input to another output.

B represents the number of data packets lost during the switching period of the audio and video terminal switch, which refers to the number of data packets lost during the process of switching the audio and video signal from one input to another output during the switching period.

ΔB is represented by the total number of data packets transmitted by the audio and video terminal switch within the switching cycle, which refers to the total number of data packets transmitted during the process of switching the audio and video signal from one input to another output within the switching cycle.

_g1 represents the correction factor corresponding to the predefined switching success rate, and _g2 represents the correction factor corresponding to the predefined data packet transmission loss rate, wherein the correction factor corresponding to the switching success rate and the correction factor corresponding to the data packet transmission loss rate are both obtained by collecting a large amount of switching success rate data and data packet transmission loss rate data as the input set of the prediction model, and training the prediction model with these data to establish a mathematical model that can predict the switching success rate and the data packet transmission loss rate, and analyze the differences between the model prediction results and the actual switching success rate and data packet transmission loss rate, and these differences are the corresponding correction factors.

In this embodiment, the weight factor corresponding to a single switching duration ranges from 0.33 to 0.5, and the weight factor corresponding to a single switching duration is set to 0.45. The weight factor corresponding to the switching success rate ranges from 0.47 to 0.56, and the weight factor corresponding to the switching success rate is set to 0.52. The weight factor corresponding to the data packet transmission loss rate ranges from 0.39 to 0.49, and the weight factor corresponding to the data packet transmission loss rate is set to 0.48.

In this embodiment, the single handover definition time is set to 3 milliseconds, the handover definition success rate is 90%, and the definition loss rate is 20%.

In this embodiment, the switching quality index of the above audio and video terminal switch has a value as shown in Table 2:

Table 2 The value change table between the switching quality index and its corresponding parameters of the audio and video terminal switch

In this embodiment, according to the table of the switching quality index of the above-mentioned audio and video terminal switch, when the single switching duration and the data packet transmission loss rate decrease and the switching success rate increases, the switching quality index of the audio and video terminal switch will greatly increase. Therefore, it is known that there is an inversely proportional relationship between the single switching duration, the data packet transmission loss rate and the switching quality index of the audio and video terminal switch, while there is a directly proportional relationship between the switching success rate and the switching quality index of the audio and video terminal switch. Therefore, in order to improve the switching quality, it is necessary to take necessary measures to reduce the single switching duration and the data packet transmission loss rate, thereby increasing the switching success rate.

Furthermore, the switching state of the mobile audio and video scheduling terminal is optimized, and the specific analysis process is as follows:

The switching quality index of the audio and video terminal switch is compared with the preset quality index threshold, wherein the quality index threshold is obtained by the dispatcher based on a comprehensive analysis of factors such as the switching quality standard of the audio and video terminal switch and the switching requirements of the usage status. If the switching quality index of the audio and video terminal switch is greater than or equal to the quality index threshold, there is no need to optimize the switching status of the mobile audio and video scheduling terminal; if the switching quality index of the audio and video terminal switch is less than the quality index threshold, the switching quality index of the audio and video terminal switch is differenced with the quality index threshold to obtain the switching quality deviation value of the audio and video terminal switch, and the switching optimization plan corresponding to each switching quality deviation value interval is matched. The specific matching process is: first, each switching quality deviation value interval is set to determine which interval the switching quality deviation value of the audio and video terminal switch belongs to, and the switching optimization plan corresponding to the interval is assigned to the audio and video terminal switch corresponding to the switching quality deviation value to obtain the switching optimization plan of the audio and video terminal switch, thereby optimizing the switching status of the mobile audio and video scheduling terminal.

The above switching optimization plan: select high-quality equipment to ensure that the audio and video terminal switch meets higher standards and supports high-resolution and high-bit rate transmission; adjust the switch parameters such as gain, equalizer, etc. according to actual needs to obtain better sound quality and picture quality; regularly clean and inspect the audio and video terminal switch to ensure its normal operation and good performance; formulate a fault handling plan to quickly locate and solve problems such as switching failure and signal loss; use special monitoring software or system to monitor the operating status and performance of the audio and video terminal switch in real time.

The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the present invention, they should all fall within the protection scope of the present invention.

Claims (10)

1. The switching method for the mobile audio/video scheduling terminal is characterized by comprising the following steps of:

Server state matching: acquiring the audio and video terminal use state information of each terminal user and the abnormal information of each audio and video terminal, and respectively evaluating the audio and video terminal use state index of each terminal user and the abnormal maintenance index of each audio and video terminal, thereby matching the audio and video terminal states of each terminal user;

And switching the audio and video terminal: if the connection state between the scheduling server and the audio/video terminal of the terminal user is an interrupted connection state, the audio/video terminal state of the terminal user is switched to a server-in-the-absence state, and if the connection state between the scheduling server and the audio/video terminal of the terminal user is a continuous connection state, the audio/video terminal state of the terminal user is switched to a server-in-presence state, so that the switching state of the audio/video terminal state is realized;

And (3) switching state optimization: and acquiring the switching information of the audio and video terminal of the terminal user through the switching state of the audio and video terminal state, and judging the switching quality index of the audio and video terminal switcher so as to optimize the switching state of the mobile audio and video scheduling terminal.

2. The handover method for a mobile audio/video scheduling terminal according to claim 1, wherein: the switching state of the mobile audio/video scheduling terminal is optimized, and the specific analysis process is as follows:

comparing the switching quality index of the audio and video terminal switcher with a preset quality index threshold, and if the switching quality index of the audio and video terminal switcher is greater than or equal to the quality index threshold, optimizing the switching state of the mobile audio and video scheduling terminal is not needed;

If the switching quality index of the audio and video terminal switcher is smaller than the quality index threshold, performing difference processing on the switching quality index of the audio and video terminal switcher and the quality index threshold to obtain switching quality deviation values of the audio and video terminal switcher, and matching with switching optimization plans corresponding to all switching quality deviation value intervals to obtain switching optimization plans of the audio and video terminal switcher, so that the switching state of the mobile audio and video scheduling terminal is optimized.

3. The handover method for a mobile audio/video scheduling terminal according to claim 1, wherein: the switching quality index of the audio/video terminal switcher comprises the following specific analysis processes:

According to the switching information of the audio and video terminal of the terminal user, extracting and obtaining single switching time length, switching success times and the number of lost transmission data packets in a switching period of the audio and video terminal switcher;

The switching success times of the audio and video terminal switcher are processed in a ratio mode with the obtained total switching times of the audio and video terminal switcher, and the switching success rate of the audio and video terminal switcher is obtained;

The method comprises the steps of carrying out ratio processing on the number of lost data packets transmitted by an audio/video terminal switcher in a switching period and the total number of data packets transmitted by the audio/video terminal switcher in the switching period, so as to obtain the data packet transmission loss rate of the audio/video terminal switcher;

and extracting a single switching definition duration, a switching definition success rate and a definition loss rate from a terminal switching management library, and comprehensively processing to obtain a switching quality index of the audio/video terminal switcher.

4. A handover method for a mobile audio video scheduling terminal according to claim 3, wherein: the switching quality index of the audio/video terminal switcher comprises the following specific analysis processes:

In the method, in the process of the invention,

Wherein a is represented as a switching quality index of the audio/video terminal switcher, SC is represented as a single switching duration of the audio/video terminal switcher, SC ^′ is represented as a single switching defining duration, CL is represented as a switching success rate of the audio/video terminal switcher, CL ^′ is represented as a switching defining success rate, DL is represented as a packet transmission loss rate of the audio/video terminal switcher, DL ^′ is represented as a defining loss rate, f ₁ is represented as a weight factor corresponding to the predefined single switching duration, f ₂ is represented as a weight factor corresponding to the predefined switching success rate, f ₃ is represented as a weight factor corresponding to the predefined packet transmission loss rate, S is represented as a switching success number of the audio/video terminal switcher, Δs is represented as a switching total number of the audio/video terminal switcher, B is represented as a transmission packet loss number of the audio/video terminal switcher in a switching period, g ₁ is represented as a correction factor corresponding to the predefined switching success rate, and g ₂ is represented as a correction factor corresponding to the predefined packet transmission loss rate.

5. The handover method for a mobile audio/video scheduling terminal according to claim 1, wherein: the specific analysis process for realizing the switching state of the audio and video terminal state comprises the following steps:

According to the audio and video terminal states of each terminal user, wherein the audio and video terminal states comprise server storage states and server non-existence states;

If the connection state between the scheduling server and the audio/video terminal of the terminal user is an interrupted connection state, the audio/video terminal state of the terminal user is switched to a server-in-the-absence state, and if the connection state between the scheduling server and the audio/video terminal of the terminal user is a continuous connection state, the audio/video terminal state of the terminal user is switched to a server-in-presence state, so that the switching state of the audio/video terminal state is realized.

6. The handover method for a mobile audio/video scheduling terminal according to claim 5, wherein: the audio and video terminal states of all terminal users are matched, and the specific matching process is as follows:

And taking the audio and video terminal use state indexes of all the terminal users and the abnormal maintenance indexes of all the audio and video terminals as input mapping sets of the end-to-end matching model, obtaining output mapping set results of the end-to-end matching model through the matching function of the end-to-end matching model, and recording the output mapping set results as the audio and video terminal states of all the terminal users.

7. The handover method for a mobile audio/video scheduling terminal according to claim 1, wherein: the audio and video terminal use state indexes of each terminal user are specifically analyzed as follows:

Extracting and obtaining the attribute information of the audio and video terminals of all the terminal users and the time required by the light sensor in the audio and video terminals to finish one-time sensing operation according to the use state information of the audio and video terminals of all the terminal users, and recording the time as the light response time of the audio and video terminals of all the terminal users;

Adding the light response time lengths corresponding to the sensing operations of the light sensor in the terminal management period to obtain the total light response time length of the audio and video terminals of the terminal users, performing ratio processing on the total light response time length of the audio and video terminals of the terminal users, integrating the total light response time length to obtain the photosensitivity of the audio and video terminals of the terminal users, multiplying the total light response time length by a correction factor corresponding to the photosensitivity defined in a terminal switching management library to obtain photosensitive influence indexes of the audio and video terminals of the terminal users, and comprehensively analyzing the photosensitive influence indexes of the audio and video terminals of the terminal users and the attribute influence degree coefficients of the audio and video terminals of the terminal users to obtain the use state indexes of the audio and video terminals of the terminal users.

8. The handover method for a mobile audio/video scheduling terminal according to claim 7, wherein: the audio and video terminal attribute influence degree coefficient of each terminal user comprises the following specific analysis processes:

according to the attribute information of the audio and video terminals of each terminal user, obtaining the decibel values of the audio and video terminals of each terminal user at each terminal management time point, sequentially arranging the decibel values in sequence from small to large, and marking the decibel value of the first ranking as the decibel peak value of the audio and video terminal of each terminal user;

acquiring output power of an audio/video terminal of each terminal user at a terminal management time point corresponding to a decibel peak value, and recording the output power as the maximum instantaneous power of the audio/video terminal of each terminal user;

extracting and obtaining a decibel definition peak value and definition power from a terminal switching management library;

Performing ratio processing on the decibel peak value and the decibel definition peak value of each terminal user audio/video terminal to obtain decibel influence indexes of each terminal user audio/video terminal; performing ratio processing on the maximum instantaneous power of the audio and video terminal of each terminal user and the defined power to obtain an audio and video terminal output power influence index of each terminal user;

and adding the decibel influence index of the audio and video terminal of each terminal user with the output power influence index of the audio and video terminal of each terminal user to obtain the attribute influence degree coefficient of the audio and video terminal of each terminal user.

9. The handover method for a mobile audio/video scheduling terminal according to claim 1, wherein: the abnormal maintenance indexes of the audio and video terminals are specifically analyzed by the following steps:

According to the abnormal information of each audio and video terminal, extracting the voltage value of each audio and video terminal at each terminal monitoring time point, constructing a voltage change scatter diagram of each audio and video terminal, extracting the total number of monitoring time points corresponding to the voltage values lower than a set voltage lower threshold value and higher than a voltage upper threshold value from the voltage change scatter diagram, and counting the abnormal voltage times of each audio and video terminal;

Acquiring a total signal intensity value and a total temperature value of each audio-video terminal in a terminal monitoring period, and respectively carrying out ratio processing on the total signal intensity value and the total temperature value of each audio-video terminal in the terminal monitoring period and the time length corresponding to the terminal monitoring period to obtain a signal intensity average value of each audio-video terminal in the terminal monitoring period and a temperature average value of each audio-video terminal in the terminal monitoring period;

And extracting an influence factor corresponding to the single voltage abnormality, a defined signal strength and a temperature reference value from a terminal switching management library, and comprehensively processing to obtain an abnormality maintenance index of each audio and video terminal.

10. The handover method for a mobile audio/video scheduling terminal according to claim 9, wherein: the abnormal maintenance indexes of the audio and video terminals are specifically analyzed by the following steps:

Analyzing the voltage abnormality times of each audio-video terminal, and multiplying the voltage abnormality times by an influence factor corresponding to the single voltage abnormality to obtain a voltage abnormality influence index of each audio-video terminal;

Analyzing the signal intensity average value of each audio and video terminal in the terminal monitoring period, and carrying out ratio processing on the signal intensity average value and the defined signal intensity to obtain the signal intensity influence index of each audio and video terminal in the terminal monitoring period;

analyzing the temperature average value of each audio-video terminal in the terminal monitoring period, and carrying out ratio processing on the temperature average value and the temperature reference value to obtain the temperature influence index of each audio-video terminal in the terminal monitoring period;

and adding the voltage abnormality influence index of each audio and video terminal, the signal intensity influence index of each audio and video terminal in the terminal monitoring period and the temperature influence index of each audio and video terminal in the terminal monitoring period to obtain the abnormality maintenance index of each audio and video terminal.