CN106911927B - Method and device for evaluating experience quality of network video user and DPI equipment - Google Patents

Abstract

The embodiment of the invention discloses a method for evaluating the experience quality of a network video user, which comprises the following steps: when a user plays a network video, acquiring data volume information of the current network video played by the user at least once; counting the times of pause of network video playing based on the acquired data volume information of the network video played by the user at each time; evaluating the user experience quality of the network video based on the counted times; the embodiment of the invention also discloses a device for evaluating the experience quality of the network video user and Deep Packet Inspection (DPI) equipment.

Description

Method, apparatus and DPI device for assessing user experience quality of network video

technical field

The present invention relates to the field of video transmission, and in particular, to a method, a device and a deep packet inspection (Deep Packet Inspection, DPI) device for evaluating the quality of experience of a network video user.

Background technique

At present, it is difficult for operators to obtain the user experience quality of network video, that is to say, when users watch network video, it is difficult for operators to know the transmission status of network video on the network link; traditional network equipment and network management methods It can detect network indicators, such as round-trip delay (Round-Trip Time, RTT), jitter, packet loss rate, etc., but for various applications of the mobile Internet, the smooth network does not mean the smooth application; for example, in the transmission control protocol The performance above the (Transmission Control Protocol, TCP) layer cannot be perceived by the traditional Internet Protocol (IP) layer network detection scheme.

To solve this problem, the existing common solution is to use a dial-up test system to detect the user experience quality of network video, that is, to evaluate the application experience quality of network video by using the application software at the corresponding time and place. However, this solution has the following shortcomings: 1) the application software used is very limited; 2) the application experience quality of network video can only be evaluated at the corresponding location, and when the location is different, the transmission path of network video and the arrival server are different, Therefore, it is difficult for this scheme to explain the user experience quality of the whole network; 3) The user experience quality of online video can only be evaluated at the corresponding time, that is to say, the evaluation result of this scheme can only reflect the user experience quality of the online video at the corresponding time. It cannot reflect the user experience quality of online videos at other times, especially for the past time points that have been complained by customers, and the corresponding user experience quality cannot be obtained.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned technical problems, the embodiments of the present invention are expected to provide a method, device and DPI device for evaluating the quality of experience of network video users. time limit.

The technical scheme of the present invention is realized as follows:

An embodiment of the present invention provides a method for evaluating the quality of experience of a network video user, including:

When the user plays the online video, obtain the data amount information of the current user playing the online video at least once;

Based on the obtained data volume information of users playing online videos each time, count the number of times that the online video playback is stuck;

Based on the counted times, the user experience quality of the online video is evaluated.

In the above scheme, the data volume information of the current user playing the network video obtained each time includes: the actual data volume and the required data volume of the current user playing the network video;

The statistics of the number of times that the network video playback is stuck based on the data volume information of the user playing the network video obtained each time includes: when the actual data volume obtained each time is less than the required data volume obtained at the same time, determining The network video playback is stuck once; when the actual amount of data obtained each time is greater than or equal to the required data amount obtained at the same time, it is determined that the network video playback is not stuck.

In the above scheme, when i is equal to 1, the actual data volume of the current user playing the network video acquired for the i th time is: the actual data volume generated based on the user playing the network video in the i th set time period; The termination time point of the set time period is the time point when the actual data amount of the online video played by the user is obtained for the i-th time;

When i is greater than 1, and the actual amount of data obtained in the i-1th time is greater than or equal to the required data amount obtained in the i-1th time, the actual data amount of the current user playing online video obtained in the i-th time is: The sum of the actual amount of data generated by the user playing the network video within the set time period and the excess data amount generated by the user playing the network video within the i-1th set time period, within the i-1th set time period The excess data volume generated by the user playing the online video is the difference between the actual data volume acquired in the i-1th time minus the required data volume acquired in the i-1th time; the start time of the i-th set time period The point is the termination time point of the i-1th set time period, and the termination time point of the ith set time period is the time point of the ith acquisition of the actual data amount of the user playing the online video;

When i is greater than 1, and the actual amount of data obtained in the i-1th time is less than the required data amount obtained in the i-1th time, the actual data amount of the current user playing the online video obtained in the i-th time is: The actual amount of data generated based on the user playing the network video in a fixed time period; the start time point of the i-th set time period is later than the i-1th set time period The termination time point, the i-1th acquisition time The sum of the actual data volume and the actual data volume generated by the user playing the online video in the extended time period after the i-1th set time period is equal to the required data volume obtained for the i-1th time. The start time point of the extension time period after the set time period is the end time point of the i-1th set time period, and the end time point of the extension time period after the i-1th set time period is the end time point of the i-1th set time period. i Set the start time point of the time period.

In the above solution, when i is greater than or equal to 1, the data amount required for the current user to play the online video obtained for the i-th time is: the required data amount for the user to play the online video in the i-th set time period.

In the above solution, when i is greater than or equal to 1, the calculation formula for the amount of data required by the user to play the online video in the i-th set time period is: P=S×(T1+T2), where P represents the i-th The amount of data required by the user to play the network video in the set time period, S represents the video bit rate requested by the user to play the network video in the ith set time period, T1 represents the time length of the ith set time period, T2 represents The pre-configured duration of the secondary cache of online videos played by users.

In the above solution, when i is greater than 1, the time lengths from the first set time period to the i th set time period are equal.

The embodiment of the present invention also provides a device for evaluating the quality of experience of a network video user, including an acquisition module, a statistics module and an evaluation module; wherein,

an obtaining module, configured to obtain the data volume information of the current user playing the online video at least once when the user plays the online video;

The statistics module is used to count the number of times that the network video playback is stuck based on the data volume information of the network video played by the user obtained each time;

The evaluation module is used to evaluate the user experience quality of the online video based on the counted times.

In the above scheme, the data volume information of the current user playing the network video obtained each time includes: the actual data volume and the required data volume of the current user playing the network video;

The statistics module is specifically used to determine that the network video playback is stuck once when the actual amount of data obtained each time is less than the required amount of data obtained at the same time; when the actual amount of data obtained each time is greater than or equal to the same amount. When the required amount of data is obtained for the second time, make sure that the network video playback is not stuck.

In the above scheme, when i is equal to 1, the actual data volume of the current user playing the network video acquired for the i th time is: the actual data volume generated based on the user playing the network video in the i th set time period; The termination time point of the set time period is the time point when the actual data amount of the online video played by the user is obtained for the i-th time;

When i is greater than 1, and the actual amount of data obtained in the i-1th time is greater than or equal to the required data amount obtained in the i-1th time, the actual data amount of the current user playing online video obtained in the i-th time is: The sum of the actual amount of data generated by the user playing the network video within the set time period and the excess data amount generated by the user playing the network video within the i-1th set time period, within the i-1th set time period The excess data volume generated by the user playing the online video is the difference between the actual data volume acquired in the i-1th time minus the required data volume acquired in the i-1th time; the start time of the i-th set time period The point is the termination time point of the i-1th set time period, and the termination time point of the ith set time period is the time point of the ith acquisition of the actual data amount of the user playing the online video;

When i is greater than 1, and the actual amount of data obtained in the i-1th time is less than the required data amount obtained in the i-1th time, the actual data amount of the current user playing the online video obtained in the i-th time is: The actual amount of data generated based on the user playing the network video in a fixed time period; the start time point of the i-th set time period is later than the i-1th set time period The termination time point, the i-1th acquisition time The sum of the actual data volume and the actual data volume generated by the user playing the online video in the extended time period after the i-1th set time period is equal to the required data volume obtained for the i-1th time. The start time point of the extension time period after the set time period is the end time point of the i-1th set time period, and the end time point of the extension time period after the i-1th set time period is the end time point of the i-1th set time period. i Set the start time point of the time period.

In the above solution, when i is greater than or equal to 1, the data amount required for the current user to play the online video obtained for the i-th time is: the required data amount for the user to play the online video in the i-th set time period.

In the above solution, when i is greater than or equal to 1, the calculation formula for the amount of data required by the user to play the online video in the i-th set time period is: P=S×(T1+T2), where P represents the i-th The amount of data required by the user to play the network video in the set time period, S represents the video bit rate requested by the user to play the network video in the ith set time period, T1 represents the time length of the ith set time period, T2 represents The pre-configured duration of the secondary cache of online videos played by users.

In the above solution, when i is greater than 1, the time lengths from the first set time period to the i th set time period are equal.

An embodiment of the present invention further provides a deep packet inspection DPI device, including any of the above-mentioned apparatuses for evaluating the quality of experience of a network video user.

The embodiments of the present invention provide a method, device, and DPI device for evaluating the quality of experience of an online video user. When a user plays an online video, the data volume information of the current online video played by the user is acquired at least once; The data volume information of online video, count the number of times that the online video playback is stuck; based on the counted times, evaluate the user experience quality of online video; Evaluate the user experience quality of any network video when restricted.

Description of drawings

1 is a flowchart of a first embodiment of a method for evaluating the quality of experience of a network video user according to the present invention;

FIG. 2 is a schematic diagram of the composition and structure of an apparatus for evaluating the quality of experience of a network video user according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

first embodiment

FIG. 1 is a flowchart of a first embodiment of a method for evaluating the quality of experience of a network video user according to the present invention. As shown in FIG. 1 , the flowchart includes:

Step 100: When the user plays the online video, obtain the data amount information of the current user playing the online video at least once.

Here, when a user needs to play an online video, he can do so by visiting a video website.

In this step, the data volume information of the current user playing the network video obtained each time includes: the actual data volume and the required data volume of the current user playing the network video.

Specifically, let i be a natural number greater than or equal to 1, the actual data amount of the current user playing online video obtained for the i-th time is: the actual data amount generated based on the user playing the online video in the i-th set time period.

Obviously, in the ith set time period, the user will receive video data when playing the network video. It is understandable that the actual amount of data generated based on the user playing the network video in the ith set time period may be the ith set time period. The actual amount of video data received by the user when playing the network video within the time period.

Here, a variety of existing implementations can be used to obtain the actual data volume of the video data received when the user plays the network video in the ith set time period. Exemplarily, the ith set time is obtained by using a DPI device deployed in the network. The actual amount of video data received by users in the segment when they play network videos.

Specifically, the required data amount for the current user to play the online video acquired for the i-th time is: the required data amount for the user to play the online video in the i-th set time period;

Exemplarily, the formula for calculating the amount of data required for the user to play the online video in the i-th set time period is: P=S×(T1+T2), where P represents that the user plays the network video in the i-th set time period The required amount of data, S represents the video bit rate requested by the user to play the network video in the ith set time period, T1 represents the time length of the ith set time period, and T2 represents the pre-configured network video played by the user. Secondary cache duration.

Here, the secondary caching duration of the online video played by the user is used to represent the required caching time for the video when the corresponding online video is paused after being played for the first time; usually, the secondary caching duration of the online video played by the user is less than the initial duration of the corresponding online video Cache duration, the initial cache duration of the web video is used to represent the cache time when the web video starts playing; in this step, the corresponding secondary cache duration of the web video can be configured according to the website where the web video is located.

In this step, a variety of methods can be used to obtain the video bit rate requested by the user when playing the network video within the i-th set time period. video bit rate.

Further, each set time period can be set according to the first way or the second way, and when each set time period is set according to the first way, the starting time point of each set time period is the user. The time point at which the online video starts to be played, when i is greater than 1, the termination time point of the i-th set time period is after the termination time point of the i-1th time period.

When each set time period is set according to the second method, when i is greater than 1, the start time point of the i th set time period is the end time point of the i-1 th time period or the end time point of the i-1 th time period. The time point after the termination time point, at this time, the time length of each set time period may be the same or different, for example, the time length of each set time period is 5 seconds.

It can be seen that when the first method is used to set each set time period, each time the actual data amount of the current user playing the online video is obtained, the data amount needs to be obtained from the time point when the online video starts to be played. In this way, high computing power and storage resources are required; when using the second method to set each set time period, if a set time period with a shorter time length is set, then each time the current user is acquired When playing the actual data amount of the network video, it is only necessary to obtain the actual data amount in a short period of time, so that the demand for computing power and storage resources can be reduced.

The following describes an implementation manner of using the second method to set the actual data amount of the network video played by the current user obtained each time when each set time period is used.

When i is equal to 1, the termination time point of the i-th set time period is the time point of obtaining the actual data amount of the user playing the online video for the i-th time; the start time point of the i-th set time period can be the user starting to play the online video The time point can also be the time point after the user starts playing the online video; the length of the first set time period can be preset, for example, the length of the first set time period is 5 seconds.

When i is greater than 1, and the actual amount of data obtained in the i-1th time is greater than or equal to the required data amount obtained in the i-1th time, the actual data amount of the current user playing online video obtained in the i-th time is: The sum of the actual amount of data generated by the user playing the network video within the set time period and the excess data amount generated by the user playing the network video within the i-1th set time period, within the i-1th set time period The excess data amount generated by the user playing the online video is the difference obtained by subtracting the required data amount obtained at the i-1th time from the actual data volume obtained at the i-1th time; exemplarily, the i-1th time The actual amount of data acquired is A1, the required amount of data acquired for the i-1th time is A2, and the actual amount of data generated based on the user playing the network video in the i-th set time period is A3; in this way, the i-1th set The excess data volume generated by the user playing the network video within a certain period of time is A1-A2, and the actual data volume of the current user playing the network video obtained for the i-th time is A3+(A1-A2).

When i is greater than 1 and the actual amount of data acquired in the i-1th time is greater than or equal to the required data amount acquired in the i-1th time, the start time point of the i-th set time period is the i-1th set time period The termination time point of the i-th set time period is the time point of the i-th acquisition of the actual data amount of the online video played by the user.

When i is greater than 1, and the actual amount of data obtained in the i-1th time is less than the required data amount obtained in the i-1th time, the actual data amount of the current user playing the online video obtained in the i-th time is: The actual amount of data generated based on users playing online videos within a certain period of time.

When i is greater than 1, and the actual amount of data acquired in the i-1th time is less than the required data amount acquired in the i-1th time, the start time point of the i-th set time period is later than the i-1th set time point At the termination time point of the time period, the sum of the actual data volume obtained at the i-1th time and the actual data volume generated by the user playing the online video in the extended time period after the i-1th set time period is equal to the i-1th time The required amount of data acquired for the second time, the start time point of the extended time period after the i-1th set time period is the end time point of the i-1th set time period, and the i-1th set time point The termination time point of the extended time period after the period is the start time point of the i-th set time period; that is, the time length of the extended time period after the i-1th set time period is set by the i-1th set time point. It is determined based on the actual data volume generated by the user playing the network video in the extended time period after the fixed time period, and the actual data volume generated based on the user playing the network video in the extended time period after the i-1th set time period is equal to When the difference between the required amount of data acquired in the i-1th time minus the actual data amount acquired in the i-1th time, the extended time period after the i-1th set time period reaches the corresponding termination time.

Step 101: Based on the obtained data volume information of the online video played by the user each time, count the number of times that the online video playback is stuck.

This step specifically includes: when the actual amount of data obtained each time is less than the required amount of data obtained at the same time, determining that the network video playback is stuck once; when the actual amount of data obtained each time is greater than or equal to the same amount of data obtained When the required amount of data is reached, it is determined that the network video playback is not stuck; the number of times that the network video playback is stuck is counted.

It can be seen that when i is greater than 1, and the actual amount of data obtained at the i-1th time is less than the required amount of data obtained at the i-1th time, it means that the network video playback is stuck once; 1. The excess data volume generated by the user playing the network video within the set time period is taken as part of the actual data volume obtained for the i-th time.

When i is greater than 1, and the actual amount of data obtained at the i-1th time is greater than the required amount of data obtained at the i-1th time, it means that the network video playback is not stuck; the current user playback is obtained at the i-1th time After the data volume information of the network video, it does not immediately enter the i-th set time period, but continues to obtain the actual data volume of the user playing the network video in the extended time period after the i-1th set time period. When the i-1th set time period When the sum of the actual data volume acquired at the first time and the actual data volume generated by the user playing the network video in the extended time period after the i-1th set time period is equal to the required data volume obtained at the i-1th time, the i-th -1 The extended time period after the set time period is terminated, and the i-th set time period is entered, and the actual data amount and the required data amount of the user to play the network video are obtained again.

In particular, when i is greater than 1, and the actual amount of data obtained at the i-1th time is equal to the required data amount obtained at the i-1th time, it means that the network video playback is not stuck; at this time, at the i-1th time After obtaining the data amount information of the current user playing the network video for the second time, enter the i-th set time period, and obtain the actual data amount and the required data amount of the user playing the network video again.

In this step, the counted number of times that the network video playback freezes is: the sum of the times that the network video playback freezes corresponding to the obtained data volume information of the network video played by the user each time.

Exemplarily, in step 100, the data volume information of the online video played by the user is acquired for a total of 2 times; the actual data volume acquired for the first time is less than the required data volume acquired for the first time, and it is determined that a freeze occurs in the playback of the network video. ; The actual amount of data obtained for the second time is greater than or equal to the required amount of data obtained for the second time, and it is determined that the network video playback is not stuck; at this time, the counted number of times that the network video playback is stuck is 1 time.

Step 102: Evaluate the user experience quality of the online video based on the counted times.

In this step, the counted number of times is used as the basis for evaluating the user experience quality of the online video; the greater the ratio of the counted number of times to the obtained number of times the current user plays the data volume information of the online video, the more The lower the quality of user experience.

Further, it is also possible to count the number of times that the network video playback is stuck, that is, after counting the number of times that the network video playback is stuck, return to step 100, and re-execute steps 100 to 102; need to explain What’s more, when counting the number of freezes in online video playback, the statistics are only based on the data volume information of users playing online videos obtained each time during the current statistical period. Here, this statistical period is from the last statistical period. The time period from the time point to the time point of this statistic.

Applying the first embodiment of the method for evaluating the quality of experience of an online video user of the present invention, when the user plays the online video, the data amount information of the current user playing the online video can be obtained at least once; Data volume information, count the number of freezes in online video playback; based on the counted number of times, evaluate the user experience quality of online video; in this way, it is not limited by the type of application software used, video playback location, and video playback time, and can Evaluate the user experience quality of any network video, that is to say, it has wide applicability when evaluating the user experience quality of network video. In addition, by analyzing the number of times of statistics, the online video playback problem complained by the user can be resolved through the corresponding user experience quality of the online video that has passed the evaluation.

Second Embodiment

For the method of the embodiment of the present invention, the embodiment of the present invention further provides an apparatus for evaluating the quality of experience of a network video user.

FIG. 2 is a schematic diagram of the composition and structure of an apparatus for evaluating the quality of experience of network video users according to an embodiment of the present invention. As shown in FIG. 2, the apparatus includes: an acquisition module 200, a statistics module 201, and an evaluation module 202; wherein,

The obtaining module 200 is configured to obtain the data amount information of the current user playing the network video at least once when the user plays the network video.

The statistics module 201 is configured to count the number of times that the network video playback is stuck based on the obtained data volume information of the network video played by the user each time.

The evaluation module 202 is configured to evaluate the user experience quality of the online video based on the counted times.

Specifically, the data volume information of the current user playing the network video obtained each time includes: the actual data volume and the required data volume of the current user playing the network video.

The statistics module 201 is specifically used to determine that the network video playback is stuck once when the actual amount of data acquired each time is less than the required amount of data acquired at the same time; when the actual amount of data acquired each time is greater than or equal to When the required amount of data is obtained at the same time, it is determined that the network video playback is not stuck.

Specifically, when i is equal to 1, the actual data volume of the current user playing the network video obtained for the i-th time is: the actual data volume generated based on the user playing the network video in the i-th set time period; The termination time point of the fixed time period is the time point at which the actual data amount of the online video played by the user is acquired for the i-th time.

When i is greater than 1, and the actual amount of data obtained in the i-1th time is greater than or equal to the required data amount obtained in the i-1th time, the actual data amount of the current user playing online video obtained in the i-th time is: The sum of the actual amount of data generated by the user playing the network video within the set time period and the excess data amount generated by the user playing the network video within the i-1th set time period, within the i-1th set time period The excess data volume generated by the user playing the online video is the difference between the actual data volume acquired in the i-1th time minus the required data volume acquired in the i-1th time; the start time of the i-th set time period The point is the termination time point of the i-1th set time period, and the termination time point of the ith set time period is the time point of the ith acquisition of the actual data amount of the network video played by the user.

When i is greater than 1, and the actual amount of data obtained in the i-1th time is less than the required data amount obtained in the i-1th time, the actual data amount of the current user playing the online video obtained in the i-th time is: The actual amount of data generated based on the user playing the network video in a fixed time period; the start time point of the i-th set time period is later than the i-1th set time period The termination time point, the i-1th acquisition time The sum of the actual data volume and the actual data volume generated by the user playing the online video in the extended time period after the i-1th set time period is equal to the required data volume obtained for the i-1th time. The start time point of the extension time period after the set time period is the end time point of the i-1th set time period, and the end time point of the extension time period after the i-1th set time period is the end time point of the i-1th set time period. i Set the start time point of the time period.

Here, when i is greater than or equal to 1, the data amount required for the current user to play the online video obtained for the i-th time is: the required data amount for the user to play the online video in the i-th set time period.

When i is greater than or equal to 1, the formula for calculating the amount of data required by the user to play the online video in the i-th set time period is: P=S×(T1+T2), where P represents the i-th set time period The amount of data required by the user to play the network video, S represents the video bit rate requested by the user to play the network video in the i-th set time period, T1 represents the time length of the i-th set time period, and T2 represents the pre-configured user The secondary cache duration of the played web video.

Further, when i is greater than 1, the time lengths from the first set time period to the i th set time period are equal.

In practical applications, the acquisition module 200, the statistics module 201 and the evaluation module 202 can all be composed of a central processing unit (Central Processing Unit, CPU), a microprocessor (Micro Processor Unit, MPU), a digital signal processing unit located in the DPI device It can be realized by digital signal processor (DSP), or field programmable gate array (FieldProgrammable Gate Array, FPGA).

Third Embodiment

Based on the apparatus for evaluating the quality of experience of network video users according to the second embodiment of the present invention, the third embodiment of the present invention further proposes a DPI device, and the DPI device includes any one of the second embodiment of the present invention for evaluating network video users Experience the quality of the device.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (9)

1. a method for evaluating the quality of experience of online video users, characterized in that the method comprises: When the user plays the online video, obtain the data amount information of the current user playing the online video at least once; Based on the obtained data volume information of users playing online videos each time, count the number of times that the online video playback is stuck; Evaluate the user experience quality of the online video based on the ratio of the counted times to the obtained times of the current user playing the data volume information of the online video; The data volume information of the current user playing the network video obtained each time includes: the actual data volume and the required data volume of the current user playing the network video; The statistics of the number of times that the network video playback is stuck based on the data volume information of the user playing the network video obtained each time includes: when the actual data volume obtained each time is less than the required data volume obtained at the same time, determining The network video playback is stuck once; when the actual amount of data obtained each time is greater than or equal to the required data amount obtained at the same time, it is determined that the network video playback is not stuck; Said, based on the data volume information of the user playing the online video obtained each time, and counting the number of times that the online video playback is stuck, it also includes: let i be a natural number greater than or equal to 1, and when i is equal to 1, the current obtained for the i-th time. The actual data volume of the user playing the network video is: the actual data volume that is generated based on the user playing the network video in the i-th set time period; The time point of the actual data volume of the video; When i is greater than 1, and the actual amount of data obtained in the i-1th time is greater than or equal to the required data amount obtained in the i-1th time, the actual data amount of the current user playing online video obtained in the i-th time is: The sum of the actual amount of data generated by the user playing the network video within the set time period and the excess data amount generated by the user playing the network video within the i-1th set time period, within the i-1th set time period The excess data volume generated by the user playing the online video is the difference between the actual data volume acquired in the i-1th time minus the required data volume acquired in the i-1th time; the start time of the i-th set time period The point is the termination time point of the i-1th set time period, and the termination time point of the ith set time period is the time point of the ith acquisition of the actual data amount of the user playing the online video; When i is greater than 1, and the actual amount of data obtained in the i-1th time is less than the required data amount obtained in the i-1th time, the actual data amount of the current user playing the online video obtained in the i-th time is: The actual amount of data generated based on the user playing the network video in a fixed time period; the start time point of the i-th set time period is later than the i-1th set time period The termination time point, the i-1th acquisition time The sum of the actual amount of data and the actual amount of data generated by the user playing the online video in the extended time period after the i-1th set time period is equal to the required amount of data acquired for the i-1th time. The start time point of the extension time period after the set time period is the end time point of the i-1th set time period, and the end time point of the extension time period after the i-1th set time period is the end time point of the i-1th set time period. i Set the start time point of the time period. 2. method according to claim 1, is characterized in that, when i is greater than or equal to 1, the required data amount of the current user that obtains for the i th time plays the network video is: in the i th set time period, the user plays the network video The amount of data required for the video. 3. The method according to claim 2, wherein, when i is greater than or equal to 1, the calculation formula of the required data amount of the user playing the network video in the i-th set time period is: P=S×( T1+T2), where P represents the amount of data required by the user to play the network video in the ith set time period, S represents the video bit rate requested by the user when playing the network video in the ith set time period, and T1 represents the ith i sets the time length of the time period, and T2 represents the preconfigured time for the secondary cache of the network video played by the user. 4 . The method according to claim 1 , wherein when i is greater than 1, the time lengths from the first set time period to the i th set time period are equal. 5 . 5. A device for evaluating the quality of experience of network video users, characterized in that the device comprises an acquisition module, a statistics module and an evaluation module; wherein, an obtaining module, configured to obtain the data volume information of the current user playing the online video at least once when the user plays the online video; The statistics module is used to count the number of times that the network video playback is stuck based on the data volume information of the network video played by the user obtained each time; an evaluation module, configured to evaluate the user experience quality of the online video based on the ratio of the counted times to the obtained times of the current user playing the data volume information of the online video; The data volume information of the current user playing the network video obtained each time includes: the actual data volume and the required data volume of the current user playing the network video; The statistics module is specifically used to determine that the network video playback is stuck once when the actual amount of data obtained each time is less than the required amount of data obtained at the same time; when the actual amount of data obtained each time is greater than or equal to the same amount. When the required amount of data is obtained for the second time, it is determined that the network video playback is not stuck; The statistics module is also used to set i to be a natural number greater than or equal to 1, and when i is equal to 1, the actual data amount of the current user playing the online video acquired for the i-th time is: The actual amount of data produced by playing the network video; the termination time point of the i-th set time period is the time point of the i-th acquisition of the actual amount of data that the user plays the network video; When i is greater than 1, and the actual amount of data obtained in the i-1th time is greater than or equal to the required data amount obtained in the i-1th time, the actual data amount of the current user playing online video obtained in the i-th time is: The sum of the actual amount of data generated by the user playing the network video within the set time period and the excess data volume generated by the user playing the network video within the i-1th set time period, within the i-1th set time period The excess data volume generated by the user playing the online video is the difference between the actual data volume acquired in the i-1th time minus the required data volume acquired in the i-1th time; the start time of the i-th set time period The point is the termination time point of the i-1th set time period, and the termination time point of the ith set time period is the time point of the ith acquisition of the actual data amount of the online video played by the user; When i is greater than 1, and the actual amount of data obtained in the i-1th time is less than the required data amount obtained in the i-1th time, the actual data amount of the current user playing the online video obtained in the i-th time is: The actual amount of data generated based on the user playing the network video in a fixed time period; the start time point of the i-th set time period is later than the i-1th set time period The termination time point, the i-1th acquisition time The sum of the actual data volume and the actual data volume generated by the user playing the online video in the extended time period after the i-1th set time period is equal to the required data volume obtained for the i-1th time. The start time point of the extension time period after the set time period is the end time point of the i-1th set time period, and the end time point of the extension time period after the i-1th set time period is the end time point of the i-1th set time period. i Set the start time point of the time period. 6. device according to claim 5 is characterized in that, when i is greater than or equal to 1, the required data amount of the current user playing network video acquired for the i-th time is: the user-playing network video in the i-th set time period The amount of data required for the video. 7. The device according to claim 6, wherein when i is greater than or equal to 1, the calculation formula of the required amount of data for the user to play the network video in the i-th set time period is: P=S×( T1+T2), where P represents the amount of data required by the user to play the network video in the ith set time period, S represents the video bit rate requested by the user when playing the network video in the ith set time period, and T1 represents the ith i sets the time length of the time period, and T2 represents the preconfigured time for the secondary cache of the network video played by the user. 8 . The device according to claim 5 , wherein when i is greater than 1, the time lengths from the first set time period to the i th set time period are equal. 9 . 9 . A deep packet inspection DPI device, wherein the DPI device comprises the device according to any one of claims 5 to 8 . 10 .

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