CN113079106B - Method, system, equipment and medium for controlling data transmission - Google Patents
Method, system, equipment and medium for controlling data transmission Download PDFInfo
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- CN113079106B CN113079106B CN202110621721.4A CN202110621721A CN113079106B CN 113079106 B CN113079106 B CN 113079106B CN 202110621721 A CN202110621721 A CN 202110621721A CN 113079106 B CN113079106 B CN 113079106B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0896—Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
Abstract
The invention provides a method, a system, equipment and a medium for controlling data transmission, which comprises the following steps: acquiring data to be transmitted and a data communication session request generated at a user side; establishing communication connection between a user side and a server side, determining a target communication link, and allocating an initial flow bandwidth to the target communication link according to a data communication session request; data fragmentation is carried out on data to be transmitted to form a corresponding data packet, and the data packet is transmitted to a server side; acquiring the transmission time length of the data packet, judging whether the transmission time length is within a preset time length range, and if the transmission time length is not within the preset time length range, dynamically adjusting the initial flow bandwidth on the target communication link. According to the invention, the flow bandwidth on the target communication link corresponding to the client and the server is dynamically adjusted, so that the transmission time of the data packet on the target communication link can be kept within the preset time range after the data to be transmitted is formed into the data packet, and the data packet can be stably transmitted.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, a system, a device, and a medium for controlling data transmission.
Background
With the development of communication technology, the use of communication terminals has spread over almost every field. Due to the needs of some fields, there may be a situation where a plurality of communication terminals (called user terminals for short) on the user side are connected to a communication terminal (called server terminal for short) on the same server side. In this case, the amount of data transmitted from different clients to the server may vary, for example, some clients may transmit data to the server continuously, and some clients may transmit data to the server intermittently. If the same traffic bandwidth is allocated to the communication link corresponding to each user side, some user sides may have a situation that the traffic bandwidth is not enough in the data transmission process, which causes network congestion when the user side transmits data to the server side; and the other user terminals can not fully use the traffic bandwidth on the communication link thereof due to the small amount of data transmitted to the server terminal.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a method, a system, a device and a medium for controlling data transmission, which are used to solve the problems of network congestion and traffic bandwidth not being fully used when a user terminal transmits data to a server terminal in the prior art.
To achieve the above and other related objects, the present invention provides a method for controlling data transmission, comprising the steps of: and acquiring the data to be transmitted and the data communication session request generated at the user side.
Establishing communication connection between the user terminal and the server terminal according to the data communication session request, determining a target communication link between the user terminal and the server terminal according to the established communication connection, and allocating an initial traffic bandwidth for the target communication link from a target traffic pool according to the data communication session request.
And carrying out data fragmentation on the data to be transmitted to form a corresponding data packet, and transmitting the data packet to the server side according to the target communication link.
Acquiring the transmission time length of the data packet on the target communication link, judging whether the transmission time length is within a preset time length range, if not, dynamically adjusting the initial flow bandwidth on the target communication link, and controlling the transmission time length of the data packet on the target communication link to be within the preset time length range.
Optionally, if the transmission duration is less than the minimum value in the preset duration range, reducing the initial traffic bandwidth in the target communication link, transmitting the data packet to the server end by using the communication link with the reduced traffic bandwidth, and controlling the transmission duration of the data packet to be within the preset duration range.
If the transmission time length is larger than the maximum value in the preset time length range, acquiring part or all of the flow bandwidth from the residual flow bandwidth of the target flow pool, superposing the acquired part or all of the flow bandwidth on the target communication link to form a superposed communication link, transmitting the data packet to a server end by utilizing the superposed communication link, and controlling the transmission time length of the data packet on the superposed communication link to be within the preset time length range.
Optionally, the process of generating the data communication session request includes: and acquiring the data to be transmitted generated at the user side.
And performing semantic recognition on the data to be transmitted by using a text recognition model to obtain a character text in the data to be transmitted.
And extracting keywords from the character text, and determining the type of the user side according to the extracted keywords.
And generating a data communication session request according to the determined user side type and a preset text communication protocol.
Optionally, the determining a target communication link between the user terminal and the server terminal according to the established communication connection includes: after the communication connection between the user side and the server side is established, a transmission path capable of carrying out data transmission between the user side and the server side is determined according to topology network nodes of the user side and the server side.
And acquiring the data error rate of each transmission path, and taking the communication link corresponding to the transmission path with the minimum data error rate as a target communication link.
Optionally, the process of allocating an initial traffic bandwidth for the target communication link from a target traffic pool according to the data communication session request includes: and after the communication connection is established between the user side and the server side and the data communication session request is generated, acquiring the quota flow bandwidth of the user side from a network bandwidth scheduling system, and taking the quota flow bandwidth of the user side as a target flow pool of the user side.
And sequencing transmission paths capable of performing data transmission between the user side and the server side, and distributing weight to each transmission path according to the sequenced result.
And selecting part of the traffic bandwidth from the target traffic pool as traffic bandwidth to be allocated, and allocating the traffic bandwidth to be allocated to a communication link corresponding to each transmission path according to a weight proportion to serve as initial traffic bandwidth of the corresponding communication link.
Optionally, if a plurality of user terminals establish communication connection with the server terminal at the same time, the transmission duration of the data packet of each user terminal on the corresponding target communication link is obtained.
And sorting according to the transmission time length, and selecting the target communication link with the maximum transmission time length.
And when the transmission time of the data packet of a certain user end on the corresponding target communication link is smaller than the minimum value in the preset time range, distributing the reduced flow bandwidth on the target communication link corresponding to the certain user end to the communication link with the maximum transmission time in the plurality of user ends.
Optionally, in the process of transmitting the data packet to the server according to the target communication link, the method further includes: and acquiring the transmission rate of the data packet on the target communication link.
Judging whether the transmission of the data packet on the target communication link has network jitter according to the transmission rate, and caching the received data packet by increasing or shortening the jitter cache depth of the server side after the network jitter occurs, so as to reduce or solve the network jitter; wherein it is determined that network jitter has occurred in the transmission of the data packet over the target communication link when the transmission rate is lower than a reference transmission rate.
The invention also provides a system for controlling data transmission, comprising: and the data acquisition module is used for acquiring the data to be transmitted and the data communication session request generated at the user side.
And the communication connection module is used for establishing the communication connection between the user side and the server side according to the data communication session request.
And the traffic bandwidth allocation module is used for determining a target communication link between the user side and the server side according to the established communication connection and allocating initial traffic bandwidth to the target communication link from a target traffic pool according to the data communication session request.
And the data transmission module is used for carrying out data fragmentation on the data to be transmitted to form a corresponding data packet and transmitting the data packet to the server side according to the target communication link.
And the dynamic control module is used for acquiring the transmission time length of the data packet on the target communication link, judging whether the transmission time length is within a preset time length range, and if the transmission time length is not within the preset time length range, dynamically adjusting the initial flow bandwidth on the target communication link to control the transmission time length of the data packet on the target communication link to be within the preset time length range.
The present invention also provides an apparatus for controlling data transmission, comprising: a processor; and a computer readable medium storing instructions that, when executed by the processor, cause the apparatus to perform any of the methods described above.
The present invention also provides a computer readable medium having stored thereon instructions that are loaded by a processor and carry out any of the methods described above.
As described above, the present invention provides a method, system, device and medium for controlling data transmission, which has the following advantages: the method comprises the steps of firstly establishing communication connection between a user side and a server side, then distributing flow bandwidth for a target communication link, and dynamically adjusting the flow bandwidth on the target communication link according to a comparison result of transmission time of a data packet on the target communication link and a preset time range after the data to be transmitted of the user side is formed into the data packet, so that the transmission time of the data packet on the target communication link is kept within the preset time range. In this embodiment, after the traffic bandwidth on the target communication link is dynamically adjusted, the data packet is not transmitted faster or slower in the transmission process, but is stably transmitted on the communication link, so that the problem of network congestion occurring when the user transmits data to the server can be solved, and the problem that the traffic bandwidth cannot be fully used can be solved.
Drawings
Fig. 1 is a flowchart illustrating a method for controlling data transmission according to an embodiment.
Fig. 2 is a flowchart illustrating a method for controlling data transmission according to another embodiment.
Fig. 3 is a schematic hardware structure diagram of a system for controlling data transmission according to an embodiment.
Fig. 4 is a schematic hardware structure diagram of an apparatus for controlling data transmission according to an embodiment.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Referring to fig. 1, the present invention provides a method for controlling data transmission, including the following steps: s100, acquiring data to be transmitted and a data communication session request generated at a user side.
S200, establishing communication connection between the user terminal and the server terminal according to the data communication session request, determining a target communication link between the user terminal and the server terminal according to the established communication connection, and allocating an initial traffic bandwidth for the target communication link from a target traffic pool according to the data communication session request.
And S300, carrying out data fragmentation on the data to be transmitted to form a corresponding data packet, and transmitting the data packet to the server side according to the target communication link.
S400, acquiring the transmission time length of the data packet on the target communication link, judging whether the transmission time length is in a preset time length range, if not, dynamically adjusting the initial flow bandwidth on the target communication link, and controlling the transmission time length of the data packet on the target communication link to be in the preset time length range.
In this embodiment, first, a communication connection between a user side and a server side is established, then, a traffic bandwidth is allocated to a target communication link, after data to be transmitted of the user side is formed into a data packet, the traffic bandwidth on the target communication link is dynamically adjusted according to a comparison result between a transmission duration of the data packet on the target communication link and a preset duration range, so that the transmission duration of the data packet on the target communication link is kept within the preset duration range. In this embodiment, after the traffic bandwidth on the target communication link is dynamically adjusted, the data packet is not transmitted faster in the transmission process, and is not transmitted slower in the transmission process, but the data packet is stably transmitted on the communication link, so that the problem of network congestion occurring when the user transmits data to the server can be solved, and the problem that the traffic bandwidth cannot be fully used can be solved. The server side has a storage function of the database and can store the received data to be transmitted.
According to the above description, in an exemplary embodiment, if the transmission duration of the data packet on the target communication link is not within the preset duration range, the dynamically adjusting the initial traffic bandwidth on the target communication link includes: and if the transmission time length is less than the minimum value in the preset time length range, reducing the initial flow bandwidth in the target communication link, transmitting the data packet to the server end by using the communication link with the reduced flow bandwidth, and controlling the transmission time length of the data packet to be in the preset time length range. If the transmission time length is larger than the maximum value in the preset time length range, acquiring part or all of the flow bandwidth from the residual flow bandwidth of the target flow pool, superposing the acquired part or all of the flow bandwidth on the target communication link to form a superposed communication link, transmitting the data packet to the server end by utilizing the superposed communication link, and controlling the transmission time length of the data packet on the superposed communication link to be within the preset time length range.
In this embodiment, if the transmission duration of the data packet on the target communication link is less than the minimum value in the preset range, it indicates that the amount of data to be transmitted generated on the user end is small, the data packet is transmitted quickly, and meanwhile, an idle traffic bandwidth may exist on the corresponding communication link. On one hand, the embodiment reduces the occupation of the communication link to the idle traffic bandwidth by reducing the traffic bandwidth on the communication link, and on the other hand, controls the transmission duration of the data packet to be within the preset duration range, thereby ensuring that the communication link with the reduced traffic bandwidth can still normally transmit the data to be transmitted generated on the user terminal, that is, the embodiment can realize the maximum application of the traffic bandwidth resource by reducing the occupation of the communication link to the idle traffic bandwidth. Meanwhile, if the transmission duration of the data packet on the target communication link is greater than the maximum value in the preset range, it indicates that the amount of data to be transmitted generated by the corresponding user side is large, the data packet is transmitted slowly, that is, the traffic bandwidth on the corresponding communication link is not enough for use, and thus network congestion occurs in the transmission process of the data packet. In this embodiment, by superimposing part or all of the remaining traffic bandwidths in the target traffic pool on the current communication link, the data transmission capability of the current communication link can be increased, which is equivalent to relieving the congestion condition of the current communication link, thereby solving the network congestion problem occurring when data transmission is performed on the communication link. As an example, if the user end in this embodiment is set in different medical departments or different medical departments in the same medical institution, the embodiment may use the electronic medical record as the data to be transmitted, so that the embodiment can solve the problem of network congestion occurring when different medical departments or different medical departments in the same medical institution transmit the electronic medical record. The preset duration range value in this embodiment may be set according to an actual situation, for example, if the number of electronic medical records generated by a respiratory department on a user end corresponding to the respiratory department is large, the preset duration range of a communication link corresponding to the user end in the respiratory department may be set to 15 to 60 seconds; if the number of the electronic medical records generated by the plastic department on the corresponding user end is small, the preset time range of the communication link corresponding to the user end in the plastic department can be set to be 10-20 seconds.
In light of the above, in an exemplary embodiment, as shown in fig. 2, the process of generating a data communication session request includes: and S10, acquiring the data to be transmitted generated at the user terminal.
And S20, performing semantic recognition on the data to be transmitted by using the text recognition model, and acquiring the character text in the data to be transmitted.
And S30, extracting keywords from the character text, and determining the type of the user terminal according to the extracted keywords.
And S40, generating a data communication session request according to the determined user terminal type and the preset text communication protocol.
In this embodiment, the image corresponding to the data to be transmitted is obtained in step S10, so this embodiment may perform semantic Recognition on the image corresponding to the data to be transmitted through a text Recognition model (e.g., Optical Character Recognition), and obtain a Character text in the data to be transmitted. As an example, the process of performing semantic recognition on the image corresponding to the data to be transmitted in this embodiment may be: performing semantic segmentation recognition on an image corresponding to data to be transmitted through one or more layout analysis deep learning network models, and acquiring a character text in the data to be transmitted according to an image text box in a semantic segmentation recognition result, character positions in the image text box and pixel points of the image; and then extracting keywords from the acquired character text, determining the type of the user side based on the extracted keywords, generating a data communication session request according to a text communication protocol preset on the user side after the type of the user side is determined, and requesting to transmit the generated data to be transmitted to the server side. As an example, the data to be transmitted in this embodiment may be an electronic medical record. For example, taking a respiratory department in a medical institution as an example, if the electronic medical record content generated by doctor a for patient B on the corresponding user side includes: "department: department of respiration; and (3) diagnosis: wind-cold infection; patient name: b; physician signature: and A', the extracted keywords can be: department of respiration, wind-cold infection, patient name and physician signature. In this embodiment, the data communication session request is generated after the type of the user side is determined, so that when the traffic bandwidth is allocated to the communication link, the data to be transmitted generated by the user side is conveniently allocated according to the amount of the data to be transmitted, thereby ensuring that the data to be transmitted generated by each user side can be stably transmitted to the server side.
In an exemplary embodiment, the process of determining a target communication link between the user terminal and the server terminal according to the established communication connection includes: after the communication connection is established between the user side and the server side, determining a transmission path capable of carrying out data transmission between the user side and the server side according to topological network nodes of the user side and the server side; and acquiring the data error rate of each transmission path, and taking the communication link corresponding to the transmission path with the minimum data error rate as a target communication link. In this embodiment, after the ue and the server establish a communication connection, there are a plurality of communication links before the ue and the server, and different communication links form different transmission paths. In the embodiment, an optimal transmission path is selected by comparing the data error rate of each transmission path, that is, the transmission path with the minimum data error rate is selected, and then the communication link corresponding to the optimal transmission path is used as a target communication link to transmit the data packet formed according to the data fragments to be transmitted, so that the time delay of the data packet can be reduced to the minimum in the transmission process, and the network congestion caused by the time delay in the transmission process of the data packet is avoided.
In an exemplary embodiment, the process of allocating initial traffic bandwidth for a target communication link from a target traffic pool in accordance with a data communication session request comprises: after a communication connection is established between a user side and a server side and a data communication session request is generated, acquiring the quota flow bandwidth of the user side from a network bandwidth scheduling system, and taking the quota flow bandwidth of the user side as a target flow pool of the user side; sequencing transmission paths capable of performing data transmission between a user side and a server side, and distributing weight to each transmission path according to the sequenced result; and selecting part of the traffic bandwidth from the target traffic pool as the traffic bandwidth to be allocated, and allocating the traffic bandwidth to be allocated to the communication link corresponding to each transmission path according to the weight proportion to be used as the initial traffic bandwidth of the corresponding communication link. In this embodiment, after the transmission paths for performing data transmission between the user side and the server side are sequenced and assigned with weights, it can be ensured that the communication link corresponding to each transmission path can be assigned with an appropriate traffic bandwidth, so that the traffic bandwidth on the communication link corresponding to each transmission path can be utilized to the maximum. As an example, in this embodiment, the transmission paths may be sorted according to the transmission time length of the data packet, and the shorter the transmission time length is, the earlier the sorting is, and the weight of the earlier the sorting is also larger. When the traffic bandwidth is allocated to the communication link, the traffic bandwidth is allocated to the corresponding communication link according to the weight proportion of each transmission path.
In an exemplary embodiment, if a plurality of user terminals establish communication connection with a server terminal at the same time, acquiring transmission duration of a data packet of each user terminal on a corresponding target communication link; sorting according to the transmission duration, and selecting a target communication link with the maximum transmission duration; and when the transmission time of the data packet of a certain user end on the corresponding target communication link is smaller than the minimum value in the preset time range, distributing the reduced flow bandwidth on the target communication link corresponding to the user end to the communication link with the maximum transmission time in the plurality of user ends. The embodiment can dynamically control the traffic bandwidth for a plurality of user terminals connected to the same server terminal. After a certain user terminal generates data to be transmitted, if the transmission duration of the data to be transmitted on the corresponding communication link is less than the minimum value of the preset duration range, the traffic bandwidth on the communication link is enough for the user terminal to transmit the data to be transmitted, and idle traffic bandwidth may exist. After determining the communication link with the maximum transmission duration, the embodiment may allocate the idle traffic bandwidth to the communication link with the maximum transmission duration, so as to implement traffic allocation between the ue and the ue. For example, at a certain time, a certain user P generates data to be transmitted, and if the transmission duration of a data packet formed according to the data fragment to be transmitted on a corresponding communication link is the largest, it indicates that the communication link corresponding to the user P is a user with the largest transmission duration at the current time; the user end Q does not produce data to be transmitted at the current time; at this time, the traffic bandwidth on the communication link corresponding to the user end Q can be dynamically reduced, and the reduced traffic bandwidth is superimposed on the communication link corresponding to the user end P, so as to increase the data transmission capability of the communication link corresponding to the user end P, thereby reducing the transmission duration of the data packet transmission performed by the user end P at the current time, and relieving the network congestion condition of the communication link corresponding to the user P.
In an exemplary embodiment, in the process of transmitting the data packet to the server according to the target communication link, the method further includes: acquiring the transmission rate of a data packet on a target communication link; judging whether network jitter occurs in the transmission of the data packet on a target communication link according to the transmission rate, and caching the received data packet by increasing or shortening the jitter cache depth of a server side after the network jitter occurs, so as to reduce or solve the network jitter; and when the transmission rate is lower than the reference transmission rate, judging that the network jitter occurs in the transmission of the data packet on the target communication link. In this embodiment, whether network congestion occurs to the data packet on the target communication link may be determined by determining whether network jitter occurs to the data packet on the target communication link, and if network jitter occurs, in addition to adjusting the traffic bandwidth on the communication link, this embodiment may also buffer the received data packet by increasing or decreasing the jitter buffer depth at the server side, so as to reduce or solve the network jitter, and alleviate or solve the congestion condition on the target communication link.
In summary, the present invention provides a method for controlling data transmission, which includes obtaining data to be transmitted and a data communication session request generated at a user terminal, then establishing a communication connection between the user terminal and a server terminal according to the data communication session request, determining a target communication link between the user terminal and the server terminal according to the established communication connection, and allocating an initial traffic bandwidth to the target communication link from a target traffic pool according to the data communication session request; carrying out data fragmentation on data to be transmitted to form a corresponding data packet, and transmitting the data packet to a server side according to a target communication link; and then acquiring the transmission time length of the data packet on the target communication link, judging whether the transmission time length is within a preset time length range, if not, dynamically adjusting the initial flow bandwidth on the target communication link, and controlling the transmission time length of the data packet on the target communication link to be within the preset time length range. The method comprises the steps of firstly establishing communication connection between a user side and a server side, then distributing flow bandwidth for a target communication link, and after data to be transmitted of the user side form a data packet, dynamically adjusting the flow bandwidth on the target communication link according to a comparison result of transmission time of the data packet on the target communication link and a preset time range, so that the transmission time of the data packet on the target communication link is kept within the preset time range. After the flow bandwidth on the target communication link is dynamically adjusted, the data packet is not transmitted faster in the transmission process, or is not transmitted slower in the transmission process, but is stably transmitted on the communication link, so that the method can solve the problem of network congestion when a user side transmits data to a server side, and can solve the problem that the flow bandwidth cannot be fully used.
As shown in fig. 3, the present invention further provides a system for controlling data transmission, including:
and the data acquisition module M10 is configured to acquire the data to be transmitted and the data communication session request generated at the user side.
And the communication connection module M20 is configured to establish a communication connection between the user side and the server side according to the data communication session request.
And the traffic bandwidth allocation module M30 is configured to determine a target communication link between the user terminal and the server terminal according to the established communication connection, and allocate an initial traffic bandwidth for the target communication link from the target traffic pool according to the data communication session request.
And the data transmission module M40 is configured to perform data fragmentation on data to be transmitted, form a corresponding data packet, and transmit the data packet to the server according to the target communication link.
And the dynamic control module M50 is configured to acquire a transmission duration of the data packet on the target communication link, determine whether the transmission duration is within a preset duration range, dynamically adjust an initial traffic bandwidth on the target communication link if the transmission duration is not within the preset duration range, and control the transmission duration of the data packet on the target communication link to be within the preset duration range.
In this embodiment, first, a communication connection between a user side and a server side is established, then, a traffic bandwidth is allocated to a target communication link, after data to be transmitted of the user side is formed into a data packet, the traffic bandwidth on the target communication link is dynamically adjusted according to a comparison result between a transmission duration of the data packet on the target communication link and a preset duration range, so that the transmission duration of the data packet on the target communication link is kept within the preset duration range. In this embodiment, after the traffic bandwidth on the target communication link is dynamically adjusted, the data packet is not transmitted faster in the transmission process, and is not transmitted slower in the transmission process, but the data packet is stably transmitted on the communication link, so that the problem of network congestion occurring when the user transmits data to the server can be solved, and the problem that the traffic bandwidth cannot be fully used can be solved. The server side has a storage function of the database and can store the received data to be transmitted.
In an exemplary embodiment, if the transmission duration of the data packet on the target communication link is not within the preset duration range, the dynamically adjusting the initial traffic bandwidth on the target communication link includes: and if the transmission time length is less than the minimum value in the preset time length range, reducing the initial flow bandwidth in the target communication link, transmitting the data packet to the server end by using the communication link with the reduced flow bandwidth, and controlling the transmission time length of the data packet to be in the preset time length range. If the transmission time length is larger than the maximum value in the preset time length range, acquiring part or all of the flow bandwidth from the residual flow bandwidth of the target flow pool, superposing the acquired part or all of the flow bandwidth on the target communication link to form a superposed communication link, transmitting the data packet to the server end by utilizing the superposed communication link, and controlling the transmission time length of the data packet on the superposed communication link to be within the preset time length range.
In this embodiment, if the transmission duration of the data packet on the target communication link is less than the minimum value in the preset range, it indicates that the amount of data to be transmitted generated on the user end is small, the data packet is transmitted quickly, and meanwhile, an idle traffic bandwidth may exist on the corresponding communication link. On one hand, the embodiment reduces the occupation of the communication link to the idle traffic bandwidth by reducing the traffic bandwidth on the communication link, and on the other hand, controls the transmission duration of the data packet to be within the preset duration range, thereby ensuring that the communication link with the reduced traffic bandwidth can still normally transmit the data to be transmitted generated on the user terminal, that is, the embodiment can realize the maximum application of the traffic bandwidth resource by reducing the occupation of the communication link to the idle traffic bandwidth. Meanwhile, if the transmission duration of the data packet on the target communication link is greater than the maximum value in the preset range, it indicates that the amount of data to be transmitted generated by the corresponding user side is large, the data packet is transmitted slowly, that is, the traffic bandwidth on the corresponding communication link is not enough for use, and thus network congestion occurs in the transmission process of the data packet. In this embodiment, by superimposing part or all of the remaining traffic bandwidths in the target traffic pool on the current communication link, the data transmission capability of the current communication link can be increased, which is equivalent to relieving the congestion condition of the current communication link, thereby solving the network congestion problem occurring when data transmission is performed on the communication link. As an example, if the user end in this embodiment is set in different medical departments or different medical departments in the same medical institution, the embodiment may use the electronic medical records as data to be transmitted, so as to solve the problem of network congestion occurring when the electronic medical records are transmitted by different medical departments or different medical departments in the same medical institution. The preset duration range value in this embodiment may be set according to an actual situation, for example, if the number of electronic medical records generated by a respiratory department on a user end corresponding to the respiratory department is large, the preset duration range of a communication link corresponding to the user end in the respiratory department may be set to 15 to 60 seconds; if the number of the electronic medical records generated by the plastic department on the corresponding user end is small, the preset time range of the communication link corresponding to the user end in the plastic department can be set to be 10-20 seconds.
In light of the above, in an exemplary embodiment, the process of the data collection module M10 generating the data communication session request includes: acquiring data to be transmitted generated at a user side; performing semantic recognition on data to be transmitted by using a text recognition model to obtain a character text in the data to be transmitted; extracting keywords from the character text, and determining the type of the user side according to the extracted keywords; and generating a data communication session request according to the determined user side type and a preset text communication protocol. In this embodiment, an image corresponding to data to be transmitted is first obtained, and then semantic Recognition is performed on the image corresponding to the data to be transmitted through a text Recognition model (for example, Optical Character Recognition), so as to obtain a Character text in the data to be transmitted. As an example, the process of performing semantic recognition on the image corresponding to the data to be transmitted in this embodiment may be: performing semantic segmentation recognition on an image corresponding to data to be transmitted through one or more layout analysis deep learning network models, and acquiring a character text in the data to be transmitted according to an image text box in a semantic segmentation recognition result, character positions in the image text box and pixel points of the image; and then extracting keywords from the acquired character text, determining the type of the user side based on the extracted keywords, generating a data communication session request according to a text communication protocol preset on the user side after the type of the user side is determined, and requesting to transmit the generated data to be transmitted to the server side. As an example, the data to be transmitted in this embodiment may be an electronic medical record. For example, taking thoracic surgery in a medical institution as an example, if the electronic medical record content generated by the doctor M for the patient N on the corresponding user end includes: "department: thoracic surgery; and (3) diagnosis: pleural effusion; patient name: n; physician signature: m ", the extracted keywords may be: thoracic surgery, pleural effusion, patient name, and physician signature. In this embodiment, the data communication session request is generated after the type of the user side is determined, so that when the traffic bandwidth is allocated to the communication link, the data to be transmitted generated by the user side is conveniently allocated according to the amount of the data to be transmitted, thereby ensuring that the data to be transmitted generated by each user side can be stably transmitted to the server side.
In an exemplary embodiment, the process of determining a target communication link between the user terminal and the server terminal according to the established communication connection includes: after the communication connection is established between the user side and the server side, determining a transmission path capable of carrying out data transmission between the user side and the server side according to topological network nodes of the user side and the server side; and acquiring the data error rate of each transmission path, and taking the communication link corresponding to the transmission path with the minimum data error rate as a target communication link. In this embodiment, after the ue and the server establish a communication connection, there are a plurality of communication links before the ue and the server, and different communication links form different transmission paths. In the embodiment, an optimal transmission path is selected by comparing the data error rate of each transmission path, that is, the transmission path with the minimum data error rate is selected, and then the communication link corresponding to the optimal transmission path is used as a target communication link to transmit the data packet formed according to the data fragments to be transmitted, so that the time delay of the data packet can be reduced to the minimum in the transmission process, and the network congestion caused by the time delay in the transmission process of the data packet is avoided.
In an exemplary embodiment, the process of allocating initial traffic bandwidth for a target communication link from a target traffic pool in accordance with a data communication session request comprises: after a communication connection is established between a user side and a server side and a data communication session request is generated, acquiring the quota flow bandwidth of the user side from a network bandwidth scheduling system, and taking the quota flow bandwidth of the user side as a target flow pool of the user side; sequencing transmission paths capable of performing data transmission between a user side and a server side, and distributing weight to each transmission path according to the sequenced result; and selecting part of the traffic bandwidth from the target traffic pool as the traffic bandwidth to be allocated, and allocating the traffic bandwidth to be allocated to the communication link corresponding to each transmission path according to the weight proportion to be used as the initial traffic bandwidth of the corresponding communication link. In this embodiment, after the transmission paths for performing data transmission between the user side and the server side are sequenced and assigned with weights, it can be ensured that the communication link corresponding to each transmission path can be assigned with an appropriate traffic bandwidth, so that the traffic bandwidth on the communication link corresponding to each transmission path can be utilized to the maximum. As an example, in this embodiment, the transmission paths may be sorted according to the transmission time length of the data packet, and the shorter the transmission time length is, the earlier the sorting is, and the weight of the earlier the sorting is also larger. When the traffic bandwidth is allocated to the communication link, the traffic bandwidth is allocated to the corresponding communication link according to the weight proportion of each transmission path.
In an exemplary embodiment, if a plurality of user terminals establish communication connection with a server terminal at the same time, acquiring transmission duration of a data packet of each user terminal on a corresponding target communication link; sorting according to the transmission duration, and selecting a target communication link with the maximum transmission duration; and when the transmission time of the data packet of a certain user end on the corresponding target communication link is smaller than the minimum value in the preset time range, distributing the reduced flow bandwidth on the target communication link corresponding to the user end to the communication link with the maximum transmission time in the plurality of user ends. The embodiment can dynamically control the traffic bandwidth for a plurality of user terminals connected to the same server terminal. After a certain user terminal generates data to be transmitted, if the transmission duration of the data to be transmitted on the corresponding communication link is less than the minimum value of the preset duration range, the traffic bandwidth on the communication link is enough for the user terminal to transmit the data to be transmitted, and idle traffic bandwidth may exist. After determining the communication link with the maximum transmission duration, the embodiment may allocate the idle traffic bandwidth to the communication link with the maximum transmission duration, so as to implement traffic allocation between the ue and the ue. For example, at a certain time, a certain user terminal X generates data to be transmitted, and if the transmission duration of a data packet formed according to the data fragment to be transmitted on a corresponding communication link is the largest, it indicates that the communication link corresponding to the user terminal X is a user terminal with the largest transmission duration at the current time; the user end Y does not produce data to be transmitted at the current time; at this time, the traffic bandwidth on the communication link corresponding to the user terminal Y can be dynamically reduced, the reduced traffic bandwidths are all superimposed on the communication link corresponding to the user terminal X, and the data transmission capability of the communication link corresponding to the user terminal X is increased, so that the transmission duration of the user terminal X during data packet transmission at the current time is reduced, and the network congestion condition of the communication link corresponding to the user terminal X is relieved.
In an exemplary embodiment, in the process of transmitting the data packet to the server according to the target communication link, the method further includes: acquiring the transmission rate of a data packet on a target communication link; judging whether network jitter occurs in the transmission of the data packet on a target communication link according to the transmission rate, and caching the received data packet by increasing or shortening the jitter cache depth of a server side after the network jitter occurs, so as to reduce or solve the network jitter; and when the transmission rate is lower than the reference transmission rate, judging that the network jitter occurs in the transmission of the data packet on the target communication link. In this embodiment, whether network congestion occurs to the data packet on the target communication link may be determined by determining whether network jitter occurs to the data packet on the target communication link, and if network jitter occurs, in addition to adjusting the traffic bandwidth on the communication link, this embodiment may also buffer the received data packet by increasing or decreasing the jitter buffer depth at the server side, so as to reduce or solve the network jitter, and alleviate or solve the congestion condition on the target communication link.
In summary, the present invention provides a system for controlling data transmission, which first obtains data to be transmitted and a data communication session request generated at a user terminal, then establishes a communication connection between the user terminal and a server terminal according to the data communication session request, determines a target communication link between the user terminal and the server terminal according to the established communication connection, and allocates an initial traffic bandwidth to the target communication link from a target traffic pool according to the data communication session request; carrying out data fragmentation on data to be transmitted to form a corresponding data packet, and transmitting the data packet to a server side according to a target communication link; and then acquiring the transmission time length of the data packet on the target communication link, judging whether the transmission time length is within a preset time length range, if not, dynamically adjusting the initial flow bandwidth on the target communication link, and controlling the transmission time length of the data packet on the target communication link to be within the preset time length range. The system firstly establishes communication connection between a user side and a server side, then distributes flow bandwidth for a target communication link, and dynamically adjusts the flow bandwidth on the target communication link according to a comparison result of transmission time of a data packet on the target communication link and a preset time range after the data to be transmitted of the user side is formed into the data packet, so that the transmission time of the data packet on the target communication link is kept within the preset time range. After the system dynamically adjusts the flow bandwidth on the target communication link, the data packets are not transmitted quickly in the transmission process, the data packets are not transmitted slowly in the transmission process, but the data packets are transmitted stably on the communication link, so that the system can solve the problem of network congestion when a user transmits data to a server, and can solve the problem that the flow bandwidth cannot be fully used.
An embodiment of the present application further provides a device for controlling data transmission, where the device may include: one or more processors; and one or more machine readable media having instructions stored thereon that, when executed by the one or more processors, cause the apparatus to perform the method of fig. 1. Fig. 4 shows a schematic structural diagram of an apparatus 1000 for controlling data transmission. Referring to fig. 4, the apparatus 1000 includes: a processor 1010, a memory 1020, a power source 1030, a display unit 1040, an input unit 1060.
The processor 1010 is a control center of the electronic device 1000, connects various components using various interfaces and lines, and performs various functions of the electronic device 1000 by running or executing software programs and/or data stored in the memory 1020, thereby performing overall monitoring of the electronic device 1000. In the embodiment of the present application, the processor 1010 executes the method described in fig. 1 when calling the computer program stored in the memory 1020. Alternatively, processor 1010 may include one or more processing units; preferably, the processor 1010 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. In some embodiments, the processor, memory, and/or memory may be implemented on a single chip, or in some embodiments, they may be implemented separately on separate chips.
The memory 1020 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, various applications, and the like; the storage data area may store data created according to use of the electronic device 1000, and the like. Further, the memory 1020 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The electronic device 1000 also includes a power supply 1030 (e.g., a battery) that provides power to the various components, and may be logically coupled to the processor 1010 via a power management system to manage charging, discharging, and power consumption via the power management system.
The display unit 1040 may be used to display information input by a user or information provided to the user, various menus of the electronic device 1000, and the like, and in the embodiment of the present invention, is mainly used to display a display interface of each application in the electronic device 1000 and objects such as texts and pictures displayed in the display interface. The display unit 1040 may include a display panel 1050. The Display panel 1050 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The input unit 1060 may be used to receive information such as numbers or characters input by a user. The input unit 1060 may include a touch panel 1070 and other input devices 1080. The touch panel 1070, also referred to as a touch screen, may collect touch operations by a user (e.g., operations by a user on the touch panel 1070 or near the touch panel 1070 using a finger, a stylus, or any other suitable object or attachment).
Specifically, the touch panel 1070 can detect a touch operation of a user, detect signals generated by the touch operation, convert the signals into touch point coordinates, transmit the touch point coordinates to the processor 1010, and receive and execute a command transmitted from the processor 1010. In addition, the touch panel 1070 may be implemented using various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. Other input devices 1080 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, power on/off keys, etc.), a trackball, a mouse, a joystick, and the like.
Of course, the touch panel 1070 may cover the display panel 1050, and when the touch panel 1070 detects a touch operation on or near the touch panel 1070, the touch operation is transmitted to the processor 1010 to determine the type of the touch event, and then the processor 1010 provides a corresponding visual output on the display panel 1050 according to the type of the touch event. Although in fig. 4, the touch panel 1070 and the display panel 1050 are implemented as two separate components to implement the input and output functions of the electronic device 1000, in some embodiments, the touch panel 1070 and the display panel 1050 may be integrated to implement the input and output functions of the electronic device 1000.
The electronic device 1000 may also include one or more sensors, such as pressure sensors, gravitational acceleration sensors, proximity light sensors, and the like. Of course, the electronic device 1000 may further include other components such as a camera according to the requirements of a specific application.
Embodiments of the present application also provide a computer-readable storage medium, which stores instructions that, when executed by one or more processors, enable the above-mentioned device to perform the method described in fig. 1 in the present application.
It will be appreciated by those skilled in the art that fig. 4 is merely an example of a device for controlling data transmission and is not intended to be limiting, and that the device may include more or fewer components than those shown, or some components may be combined, or different components. For convenience of description, the above parts are separately described as modules (or units) according to functional division. Of course, the functionality of the various modules (or units) may be implemented in the same one or more pieces of software or hardware when implementing the present application. Those skilled in the art will appreciate that the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein. The present application has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application, and it is understood that each flowchart illustration and/or block diagram block and combination of flowchart illustrations and/or block diagrams block and computer program instructions may be implemented by computer program instructions. These computer program instructions may be applied to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks. These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be understood that although the terms first, second, third, etc. may be used to describe preset ranges, etc. in embodiments of the present invention, these preset ranges should not be limited to these terms. These terms are only used to distinguish preset ranges from each other. For example, the first preset range may also be referred to as a second preset range, and similarly, the second preset range may also be referred to as the first preset range, without departing from the scope of the embodiments of the present invention.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. A method of controlling data transmission, comprising the steps of:
acquiring data to be transmitted and a data communication session request generated at a user side;
establishing communication connection between the user terminal and the server terminal according to the data communication session request, determining a target communication link between the user terminal and the server terminal according to the established communication connection, and allocating an initial traffic bandwidth to the target communication link from a target traffic pool according to the data communication session request;
carrying out data fragmentation on the data to be transmitted to form a corresponding data packet, and transmitting the data packet to the server side according to the target communication link;
acquiring the transmission time length of the data packet on the target communication link, judging whether the transmission time length is within a preset time length range, if not, dynamically adjusting the initial flow bandwidth on the target communication link, and controlling the transmission time length of the data packet on the target communication link to be within the preset time length range;
if the transmission time length is smaller than the minimum value in the preset time length range, reducing the initial flow bandwidth in the target communication link, transmitting the data packet to a server end by using the communication link with the reduced flow bandwidth, and controlling the transmission time length of the data packet to be within the preset time length range;
if the transmission time length is larger than the maximum value in the preset time length range, acquiring part or all of the flow bandwidth from the residual flow bandwidth of the target flow pool, superposing the acquired part or all of the flow bandwidth on the target communication link to form a superposed communication link, transmitting the data packet to a server end by utilizing the superposed communication link, and controlling the transmission time length of the data packet on the superposed communication link to be within the preset time length range.
2. The method of controlling data transmission according to claim 1, wherein generating the data communication session request comprises:
acquiring data to be transmitted generated at a user side;
performing semantic recognition on the data to be transmitted by using a text recognition model to obtain a character text in the data to be transmitted;
extracting keywords from the character text, and determining the type of the user side according to the extracted keywords; and generating a data communication session request according to the determined user side type and a preset text communication protocol.
3. The method for controlling data transmission according to claim 1, wherein the step of determining the target communication link between the user terminal and the server terminal according to the established communication connection comprises:
after the communication connection between the user side and the server side is established, determining a transmission path capable of carrying out data transmission between the user side and the server side according to topological network nodes of the user side and the server side;
and acquiring the data error rate of each transmission path, and taking the communication link corresponding to the transmission path with the minimum data error rate as a target communication link.
4. The method of claim 3, wherein the step of allocating an initial traffic bandwidth for the target communication link from a target traffic pool according to the data communication session request comprises:
after the user side and the server side establish communication connection and the data communication session request is generated, acquiring the quota flow bandwidth of the user side from a network bandwidth scheduling system, and taking the quota flow bandwidth of the user side as a target flow pool of the user side;
sequencing transmission paths capable of performing data transmission between the user side and the server side, and distributing weight to each transmission path according to the sequenced result;
and selecting part of the traffic bandwidth from the target traffic pool as traffic bandwidth to be allocated, and allocating the traffic bandwidth to be allocated to a communication link corresponding to each transmission path according to a weight proportion to serve as initial traffic bandwidth of the corresponding communication link.
5. The method according to claim 1, wherein if a plurality of user terminals establish communication connection with the server terminal at the same time, the transmission duration of the data packet of each user terminal on the corresponding target communication link is obtained;
sorting according to the transmission duration, and selecting a target communication link with the maximum transmission duration;
and when the transmission time of the data packet of a certain user end on the corresponding target communication link is smaller than the minimum value in the preset time range, distributing the reduced flow bandwidth on the target communication link corresponding to the certain user end to the communication link with the maximum transmission time in the plurality of user ends.
6. The method for controlling data transmission according to claim 1, wherein, in the process of transmitting the data packet to the server side according to the target communication link, the method further comprises:
acquiring the transmission rate of the data packet on the target communication link;
judging whether the transmission of the data packet on the target communication link has network jitter according to the transmission rate, and caching the received data packet by increasing or shortening the jitter cache depth of the server side after the network jitter occurs, so as to reduce or solve the network jitter; wherein it is determined that network jitter has occurred in the transmission of the data packet over the target communication link when the transmission rate is lower than a reference transmission rate.
7. A system for controlling data transmission, comprising:
the data acquisition module is used for acquiring data to be transmitted and a data communication session request generated at a user side;
the communication connection module is used for establishing communication connection between the user side and the server side according to the data communication session request;
a traffic bandwidth allocation module, configured to determine a target communication link between the user side and the server side according to the established communication connection, and allocate an initial traffic bandwidth to the target communication link from a target traffic pool according to the data communication session request;
the data transmission module is used for carrying out data fragmentation on the data to be transmitted to form a corresponding data packet and transmitting the data packet to the server side according to the target communication link;
the dynamic control module is used for acquiring the transmission time length of the data packet on the target communication link, judging whether the transmission time length is within a preset time length range, and if the transmission time length is not within the preset time length range, dynamically adjusting the initial flow bandwidth on the target communication link to control the transmission time length of the data packet on the target communication link to be within the preset time length range;
if the transmission time length is smaller than the minimum value in the preset time length range, reducing the initial flow bandwidth in the target communication link, transmitting the data packet to a server end by using the communication link with the reduced flow bandwidth, and controlling the transmission time length of the data packet to be within the preset time length range;
if the transmission time length is larger than the maximum value in the preset time length range, acquiring part or all of the flow bandwidth from the residual flow bandwidth of the target flow pool, superposing the acquired part or all of the flow bandwidth on the target communication link to form a superposed communication link, transmitting the data packet to a server end by utilizing the superposed communication link, and controlling the transmission time length of the data packet on the superposed communication link to be within the preset time length range.
8. An apparatus for controlling data transmission, comprising:
a processor; and
a computer readable medium having stored thereon instructions that, when executed by the processor, cause the apparatus to perform the method of any of claims 1 to 6.
9. A computer-readable medium having stored thereon instructions which are loaded by a processor and which perform the method of any of claims 1 to 6.
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| CN113378141A (en) * | 2021-08-12 | 2021-09-10 | 明品云(北京)数据科技有限公司 | Text data transmission method, system, equipment and medium |
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