CN116781605A - Transmission method and device for remote medical service flow and computer equipment - Google Patents

Abstract

This application relates to a method, device and computer equipment for transmitting telemedicine business streams. By obtaining the telemedicine business flow transmission request sent by the telemedicine terminal for the telemedicine terminal, based on the multiple remote operation and maintenance flow monitoring data corresponding to the multiple network paths of the telemedicine business flow to be transmitted in the request, determine the number of multiple network paths. Multiple service quality information, based on the comparison result of the service quality information and the service quality requirement threshold, determine the network path selection strategy for the telemedicine business flow to be transmitted, and transmit the telemedicine business flow to be transmitted to the telemedicine terminal based on the network path selection strategy. Compared with the traditional transmission of telemedicine business flows in a small-scale private network, this solution combines the monitoring data corresponding to the business flows to determine the service quality of multiple network paths between the platform and the terminal, and dynamically switches the service quality to the best Optimal network paths are used to transmit telemedicine business flows and improve the stability of transmission quality.

Description

Telemedicine business flow transmission method, device and computer equipment

Technical field

This application relates to the field of telemedicine technology, and in particular to a method, device, computer equipment, storage medium and computer program product for transmitting telemedicine business streams.

Background technique

With the development of computer technology, telemedicine technology has become more and more popular. In order to ensure the stability of medical treatment in the process of telemedicine, it is very important to ensure the stable transmission of medical videos. The current method of transmitting telemedicine business streams in telemedicine is usually through lossless compression over a small-scale private network. However, when transmitting telemedicine business streams within a small-scale private network, the video transmission quality will be unstable due to the private network lines.

Therefore, the current transmission method of telemedicine business streams has the defect of unstable transmission quality.

Contents of the invention

Based on this, it is necessary to address the above technical problems and provide a transmission method, device, computer equipment, computer-readable storage medium and computer program product for telemedicine business streams that can improve the stability of transmission quality.

In the first aspect, this application provides a method for transmitting telemedicine service flows, which is applied to network equipment. The method includes:

Obtain a telemedicine business stream transmission request sent by the telemedicine platform for the telemedicine terminal; the telemedicine business stream transmission request includes a telemedicine business stream to be transmitted;

Obtain multiple remote business flow monitoring data corresponding to the telemedicine business flow to be transmitted on multiple network paths; the remote business flow monitoring data is generated based on the monitoring configuration corresponding to the telemedicine business flow to be transmitted;

Determine a plurality of service quality information corresponding to the to-be-transmitted telemedicine service flow on multiple network paths according to the plurality of remote business flow monitoring data;

Determine a network path selection strategy for the telemedicine service flow to be transmitted based on the comparison result between each service quality information and the service quality requirement threshold, and transmit the telemedicine service flow to be transmitted to the remote location based on the network path selection strategy Medical terminal; the service quality requirement threshold corresponds to the telemedicine business flow to be transmitted.

In one embodiment, the telemedicine service flow to be transmitted includes a communication port; the method further includes:

Obtain multiple original remote business flow monitoring data corresponding to the telemedicine business flow to be transmitted;

According to the communication port, multiple flow command header identifiers are added to the multiple original remote service flow monitoring data at preset intervals to obtain the multiple remote service flow monitoring data, and the multiple remote service flow monitoring data are Data is input into the plurality of network paths respectively.

In one embodiment, obtaining multiple remote service flow monitoring data corresponding to multiple network paths of the to-be-transmitted telemedicine service flow includes:

From the multiple network paths, multiple remote service flow monitoring data are obtained according to the flow instruction header identifier corresponding to the remote medical service flow to be transmitted.

In one embodiment, determining a plurality of service quality information corresponding to the to-be-transmitted telemedicine service flow on multiple network paths based on the multiple remote service flow monitoring data includes:

For each network path, obtain the packet loss rate and delay corresponding to the remote business flow monitoring data on the network path;

According to the packet loss rate, the delay, the preset maximum delay value and the preset penalty coefficient, the service quality information corresponding to the remote business flow monitoring data on the network path is determined.

In one embodiment, the method further includes:

Obtain the delay demand value, packet loss demand value and bandwidth demand value corresponding to the telemedicine business flow to be transmitted;

The preset penalty coefficient is determined based on the comparison result between the delay requirement value and the delay threshold, the comparison result between the packet loss requirement value and the packet loss threshold, and the comparison result between the bandwidth requirement value and the bandwidth threshold. .

In one embodiment, determining a network path selection strategy for the telemedicine service flow to be transmitted based on a comparison result between each quality of service information and a quality of service requirement threshold includes:

For each service quality information, obtain the difference between the service quality information and the service quality requirement threshold as a comparison result;

Determine the primary network path based on the network path with the largest difference and whose service quality information is greater than the service quality requirement threshold; determine the alternative network path based on other network paths other than the primary network path;

The network path selection strategy is determined based on the primary network path and the alternative network path.

In one embodiment, determining the network path selection strategy based on the primary network path and the alternative network path includes:

If the service quality information corresponding to the primary selected network path is greater than the service quality requirement threshold, determine the network path selection strategy to transmit the to-be-transmitted telemedicine service flow based on the primary selected network path;

If the service quality information corresponding to the main selected network path is less than or equal to the service quality requirement threshold and less than the service quality information corresponding to the alternative network path, it is determined that the network path selection strategy is based on the alternative network path. Transmit the telemedicine service flow to be transmitted.

In the second aspect, this application provides a method for transmitting telemedicine business flows, which is applied to the telemedicine platform. The method includes:

In response to the telemedicine business flow instruction, generate a telemedicine business flow transmission request according to the network parameters of the telemedicine terminal corresponding to the telemedicine business flow instruction and the telemedicine business flow to be transmitted corresponding to the telemedicine business flow instruction;

The telemedicine service stream transmission request is sent to the network device as mentioned above.

In one embodiment, generating a telemedicine service stream transmission request based on the network parameters of the telemedicine terminal corresponding to the medical video service instruction and the telemedicine service flow to be transmitted corresponding to the telemedicine service flow instruction includes: :

Obtain the communication port, network address and communication protocol with the telemedicine terminal;

A telemedicine service stream transmission request is generated according to the communication port, network address, communication protocol and the telemedicine service stream to be transmitted.

In a third aspect, this application provides a device for transmitting telemedicine business flows, which is applied to network equipment. The device includes:

The first acquisition module is used to obtain the telemedicine service stream transmission request sent by the telemedicine platform for the telemedicine terminal; the telemedicine service stream transmission request includes the telemedicine service stream to be transmitted;

The second acquisition module is used to obtain multiple remote business flow monitoring data corresponding to the to-be-transmitted telemedicine business flow on multiple network paths; the remote business flow monitoring data is based on the monitoring data corresponding to the to-be-transmitted telemedicine business flow. Configuration generation;

A determination module, configured to determine a plurality of service quality information corresponding to the to-be-transmitted telemedicine service flow on multiple network paths based on the plurality of remote service flow monitoring data;

A transmission module, configured to determine a network path selection strategy for the telemedicine service flow to be transmitted based on a comparison result between each quality of service information and a quality of service requirement threshold, and to transmit the telemedicine service to be transmitted based on the network path selection strategy. flows to the telemedicine terminal; the service quality requirement threshold corresponds to the telemedicine business flow to be transmitted.

In the fourth aspect, this application provides a transmission device for telemedicine business streams, which is applied to a telemedicine platform. The device includes:

A response module configured to respond to a telemedicine business flow instruction and generate a telemedicine service based on the network parameters of the telemedicine terminal corresponding to the telemedicine business flow instruction and the telemedicine business flow to be transmitted corresponding to the telemedicine business flow instruction. streaming request;

A sending module, configured to send the telemedicine service stream transmission request to the above-mentioned network device.

In a fifth aspect, the present application provides a computer device, including a memory and a processor. The memory stores a computer program. When the processor executes the computer program, the steps of the above method are implemented.

In a sixth aspect, the present application provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of the above method are implemented.

In a seventh aspect, the present application provides a computer program product, including a computer program that implements the steps of the above method when executed by a processor.

The above-mentioned telemedicine business flow transmission method, device, computer equipment, storage medium and computer program product obtains the telemedicine business flow transmission request sent by the telemedicine platform for the telemedicine terminal, based on the telemedicine business flow to be transmitted in the request. Multiple remote operation and maintenance flow monitoring data corresponding to multiple network paths are used to determine multiple service quality information of multiple network paths. Based on the comparison results of the service quality information and the corresponding service quality requirement thresholds, the remote medical business flow to be transmitted is determined. A network path selection strategy is used to transmit the telemedicine service flow to be transmitted to the telemedicine terminal based on the network path selection strategy. Compared with the traditional transmission of telemedicine business flows in a small-scale private network, this solution combines the monitoring data corresponding to the business flows to determine the service quality of multiple network paths between the platform and the terminal, and dynamically switches the service quality to the best Optimal network paths are used to transmit telemedicine business flows and improve the stability of transmission quality.

Description of drawings

Figure 1 is an application environment diagram of a telemedicine service flow transmission method in one embodiment;

Figure 2 is a schematic flowchart of a method for transmitting telemedicine business flows in one embodiment;

Figure 3 is a schematic flowchart of a method for transmitting telemedicine service flows in another embodiment;

Figure 4 is a schematic flowchart of a method for transmitting telemedicine business flows in yet another embodiment;

Figure 5 is a structural block diagram of a transmission device for telemedicine business flows in one embodiment;

Figure 6 is a structural block diagram of a transmission device for telemedicine business flows in another embodiment;

Figure 7 is an internal structure diagram of a computer device in one embodiment.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application and are not used to limit the present application.

The telemedicine service flow transmission method provided by the embodiment of the present application can be applied in the application environment as shown in Figure 1. Among them, the telemedicine terminal communicates remotely with the telemedicine platform through network equipment. The data storage system can store the data that the telemedicine platform needs to process. The data storage system can be integrated on the telemedicine platform or placed on the cloud or other network servers. The telemedicine platform can send a telemedicine business stream transmission request for the telemedicine terminal to the network device. Based on the above request, the network device determines the service quality information of each network path based on the remote business flow monitoring data, and determines the telemedicine business flow based on the service quality information. The network path selection strategy is then combined with the service quality to dynamically switch the network path with better service quality and send the telemedicine business flow to the telemedicine terminal. Among them, telemedicine terminals and telemedicine platforms can be, but are not limited to, various personal computers, laptops, smart phones and tablets. Network equipment can be implemented as a stand-alone server or a server cluster composed of multiple servers.

In one embodiment, as shown in Figure 2, a method for transmitting telemedicine service flows is provided. This method is explained by taking the method applied to the network device in Figure 1 as an example, and includes the following steps:

Step S202: Obtain the telemedicine service stream transmission request sent by the telemedicine platform for the telemedicine terminal; the telemedicine service stream transmission request includes the telemedicine service stream to be transmitted.

The telemedicine platform may be a platform used to initiate telemedicine business flow requests. Among them, telemedicine business flows can include multiple types. For example, the telemedicine business flows that the telemedicine platform can implement include but are not limited to video conferencing systems, that is, the telemedicine platform implements multi-party video conference call functions during remote consultation; surgical video live broadcast systems, the telemedicine platform is responsible for collecting and encoding surgical video information , and live broadcast in a lossless transmission mode; the lossless image picture system, the telemedicine platform collects and distributes in accordance with the DICOM (Digital Imaging and Communications in Medicine, Digital Imaging and Communications in Medicine) medical imaging technology standards; in addition, the telemedicine platform also supports HTTPS ( Hypertext Transfer Protocol Secure (Hypertext Transfer Protocol Secure) protocol performs business control and request functions.

The telemedicine terminal may be a terminal used for transmitting telemedicine business flows with the telemedicine platform, such as a medical terminal located in a different geographical location from the telemedicine platform. A variety of services can be realized between the telemedicine terminal and the telemedicine platform through the transmission of telemedicine business streams. For example, the services that can be implemented between telemedicine terminals and telemedicine platforms include but are not limited to video conferencing systems, surgical video live broadcast systems, lossless imaging systems, business control and requests, etc. In some embodiments, the telemedicine terminal can also transmit the telemedicine business flow to the telemedicine platform;

When the telemedicine platform needs to establish telemedicine business stream transmission with the telemedicine terminal, it can generate a corresponding telemedicine business stream transmission request based on the telemedicine business stream to be transmitted. The telemedicine platform can send the above telemedicine business stream transmission to the network device. ask. The network device can receive the telemedicine service stream transmission request, and based on the telemedicine service stream transmission request, prioritize the telemedicine service stream to be transmitted in multiple network paths with QoS (Quality of Service) as the priority. Switch transmission. Among them, quality of service refers to the ability of a network to use various basic technologies to provide better service capabilities for designated network communications. It is a security mechanism of the network and a technology used to solve problems such as network delay and congestion. The above multiple network paths represent multiple network paths between the telemedicine platform and the telemedicine terminal.

The above network equipment can be composed of a variety of devices. For example, network equipment may include an SDN (Software Defined Network, Software Defined Network) controller, edge network elements, multiple path network elements, etc. Among them, software-defined network is a new innovative network architecture and an implementation method of network virtualization. Its core technology OpenFlow achieves flexible control of network traffic by separating the control plane and data plane of network equipment, making the network more intelligent and providing a good platform for the innovation of core networks and applications. The software-defined network controller can be used to receive business requests transmitted by the telemedicine platform based on the secure hypertext transfer protocol, such as the above-mentioned telemedicine service stream transmission requests; the above-mentioned path network elements can be represented as multiple links between the telemedicine platform and the telemedicine terminal. Network elements configured on a network path. In addition, the software-defined network controller can also calculate differentiated transmission network paths based on different business requirements and deliver corresponding path selection strategies to each path network element.

Step S204: Obtain multiple remote business flow monitoring data corresponding to multiple network paths of the telemedicine business flow to be transmitted; the remote business flow monitoring data is generated based on the monitoring configuration corresponding to the telemedicine business flow to be transmitted.

Among them, when the above-mentioned telemedicine business flow to be transmitted is transmitted on multiple network paths between the telemedicine platform and the telemedicine terminal, the service quality of the transmission will be low due to network quality and other reasons. Therefore, the network device can monitor the above-mentioned multiple network paths. Among them, the network device can monitor and configure the above-mentioned multiple network paths. For example, the network device generates corresponding remote service flow monitoring data based on the above telemedicine service flow to be transmitted. The remote business flow monitoring data may be data related to the telemedicine business flow to be transmitted. The network device can obtain multiple remote service flow monitoring data corresponding to the remote medical service flow to be transmitted on multiple network paths. Specifically, the network device can convert the original remote service flow monitoring data into the above-mentioned remote service flow monitoring data by adding corresponding identifiers.

Among them, the software-defined network controller in the network device can configure the above-mentioned remote business flow monitoring data to the edge network element. Send corresponding remote service flow monitoring data to each network path through edge network elements.

Step S206: Determine a plurality of service quality information corresponding to multiple network paths of the telemedicine service flow to be transmitted based on multiple remote service flow monitoring data.

Among them, the network device can transmit multiple remote business flow monitoring data using the above-mentioned multiple network paths. Among them, there can be multiple remote service flow monitoring data transmitted in each network path. The network device can sample and detect the remote service flow monitoring data transmitted in each network path to determine multiple service quality information corresponding to the telemedicine service flow to be transmitted on multiple network paths. That is, the network device can determine multiple service quality information corresponding to multiple network paths of the telemedicine business flow to be transmitted based on multiple remote business flow monitoring data.

Specifically, the software-defined network controller in the above network device can configure remote business flow monitoring data to edge network elements, for example, based on the communication interface information provided by the telemedicine platform, configure remote business flow monitoring data. In the service initialization stage and service persistence stage, the edge network element performs flow monitoring settings and detection on remote service flow monitoring data according to the policy. Among them, the business initialization stage represents the stage when the telemedicine business flow to be transmitted has not yet been transmitted; the business survival stage represents the stage when the telemedicine business flow to be transmitted is officially transmitted. The above-mentioned network equipment may also include a network quality data acquisition and control system, and the above-mentioned path network elements may report remote service flow monitoring data transmitted in each network path to the network quality data acquisition and control system. The software-defined network can collect the remote business flow monitoring data collected by the network elements of the above paths, and through summary analysis and calculation, obtain the service quality information corresponding to each network path. The service quality information represents the transmission quality of the telemedicine business flow on the corresponding network path. Specifically, such as delay and packet loss rate.

Step S208: Determine the network path selection strategy for the telemedicine service flow to be transmitted based on the comparison results between each service quality information and the service quality requirement threshold, and transmit the telemedicine service flow to be transmitted to the telemedicine terminal based on the network path selection strategy; Service Quality The demand threshold corresponds to the telemedicine business flow to be transmitted.

Among them, the service quality requirements of telemedicine business flows corresponding to different telemedicine services are different, and the service quality requirement thresholds corresponding to different telemedicine business flows are also different. For the service quality information determined by the network device on each network path, the network device can compare the service quality information with the corresponding service quality requirement threshold. Based on the above comparison results, the network device determines the telemedicine service flow to be transmitted. Network path selection strategy. For example, network equipment can use sampling methods to detect the service quality of each network path when transmitting remote business flow monitoring data or telemedicine business flows to be transmitted, and determine the network path with the best current service quality. The network equipment is based on the optimal The network path selection strategy is obtained, and based on the network path selection strategy, the telemedicine service flow to be transmitted is transmitted to the telemedicine terminal. For example, every time the network device determines the current optimal network path, it switches the remote business flow monitoring data or the telemedicine business flow to be transmitted to the current network path with the best service quality, realizing dynamic switching of the network path to ensure the telemedicine business. Streaming quality of service.

In the above method of transmitting the telemedicine business flow, by obtaining the telemedicine business flow transmission request sent by the telemedicine platform for the telemedicine terminal, multiple remote operations and maintenance corresponding to the multiple network paths are based on the telemedicine business flow to be transmitted in the request. Flow monitoring data is used to determine multiple service quality information of multiple network paths. Based on the comparison results between the service quality information and the corresponding service quality requirement threshold, the network path selection strategy for the telemedicine business flow to be transmitted is determined. Based on the network path selection strategy Transmit the telemedicine service flow to be transmitted to the telemedicine terminal. Compared with the traditional transmission of telemedicine business flows in a small-scale private network, this solution combines the monitoring data corresponding to the business flows to determine the service quality of multiple network paths between the platform and the terminal, and dynamically switches the service quality to the best Optimal network paths are used to transmit telemedicine business flows and improve the stability of transmission quality.

In one embodiment, the method further includes: obtaining multiple original remote business flow monitoring data corresponding to the telemedicine business flow to be transmitted; and adding multiple flow instruction header identifiers to the multiple original remote business flow monitoring data at preset intervals according to the communication port. In the process, multiple remote business flow monitoring data are obtained, and the multiple remote business flow monitoring data are input into multiple network paths respectively.

In this embodiment, the telemedicine service flow to be transmitted includes a communication port, which is also called quintuple information. Among them, the five-tuple information includes source IP address, source port, destination IP address, destination port and transport layer protocol. Network equipment can transmit business flow monitoring data through multiple network paths, sample and analyze the data in the network paths, and determine the service quality of each network path. Among them, the network device can perform sampling detection on the remote service flow monitoring data by detecting the identifier in the remote service flow monitoring data. For example, the network device can obtain multiple original remote business flow monitoring data corresponding to the telemedicine business flow to be transmitted; the network device can add multiple flow command header identifiers to multiple original remote business flow monitoring data at preset intervals based on the above communication port. In the data, multiple remote business flow monitoring data are obtained, so that the network device can input the multiple remote business flow monitoring data into multiple network paths respectively.

Specifically, the edge network elements in the above network equipment can support the flow monitoring protocol. The edge network element can activate the flow detection function and set the header information FIH (Flow Instruction Header) of the specified service flow based on the above communication port information. For example, a flow command header identifier is added to a piece of original remote service flow monitoring data corresponding to the number of original remote service flow monitoring data at a preset interval. Among them, the flow instruction header identifier can be used to uniquely identify a service.

After the network device inputs multiple remote service flow monitoring data including remote service flow monitoring data carrying the flow command header into multiple network paths, it can sample the data. For example, in one embodiment, the network device can obtain multiple remote service flow monitoring data from multiple network paths based on the flow instruction header identifier corresponding to the remote medical service flow to be transmitted. Wherein, the above remote service flow monitoring data may be generated based on the service type of the medical service flow to be transmitted. In order to ensure the service survival phase, the network device can collect the telemedicine service flow transmitted in the network path based on the flow command header, and the network device can add the same type of flow command header to the remote service flow monitoring data.

In addition, in some embodiments, the network device can also add the above-mentioned flow instruction header identifier to the telemedicine service flow in actual use, thereby sampling the telemedicine service based on the flow instruction header identifier during the transmission of the actual telemedicine service flow. Flow data is used to determine the network path selection strategy for telemedicine business flows by analyzing service quality.

Through the above embodiments, the network device can sample the remote service flow monitoring data based on the flow instruction header identifier, so that the network device analyzes the service quality information based on the sampled data and determines the network path selection strategy for the remote medical service flow to be transmitted, improving improve the transmission quality of telemedicine business flows.

In one embodiment, determining multiple service quality information corresponding to multiple network paths for the telemedicine service flow to be transmitted based on multiple remote business flow monitoring data includes: for each network path, obtaining the remote business flow monitoring data on multiple network paths. The packet loss rate and delay corresponding to the network path; based on the packet loss rate, delay, preset maximum delay value, and preset penalty coefficient, determine the service quality information corresponding to the remote business flow monitoring data on the network path.

In this embodiment, the network device can analyze the service quality information of each network path based on the sampled remote service flow monitoring data. Wherein, the service quality information represents the service quality of the network path between the telemedicine platform and the telemedicine terminal. There can be multiple network paths between the above-mentioned telemedicine platform and the telemedicine terminal, and the network equipment can extract a variety of data from the sampled remote business flow monitoring data to determine service quality information. For example, for each network path, the network device can obtain the packet loss rate and delay corresponding to the remote business flow monitoring data on the network path. The network device can obtain the packet loss rate and delay corresponding to the network path based on the packet loss rate, delay, preset delay maximum value and predetermined delay. Set the penalty coefficient to determine the service quality information corresponding to the remote business flow monitoring data on the network path.

The above penalty coefficient may vary based on different business types of the telemedicine business flow. For example, in one embodiment, for different service types, the corresponding delay requirements, packet loss requirements, and bandwidth requirements may be different, and the penalty coefficients of different services may also be different. The network device can obtain the delay demand value, packet loss demand value and bandwidth demand value corresponding to the telemedicine service flow to be transmitted. The above-mentioned delay, packet loss and bandwidth have corresponding thresholds respectively. The network device can determine the preset penalty coefficient based on the comparison result between the delay demand value and the delay threshold, the comparison result between the packet loss demand value and the packet loss threshold, and the comparison result between the bandwidth demand value and the bandwidth threshold.

Specifically, the above-mentioned telemedicine service flow may include a first service type with a delay requirement value less than a preset delay threshold and a packet loss requirement value less than the packet loss threshold, such as a low-delay, zero-packet-loss service. The network device may Determine the value of a penalty coefficient for this type of business. Among them, the penalty coefficient includes α and β. For the above-mentioned low-latency, zero packet loss business, the network device can set α to 0.972 and β to 0.028.

The above-mentioned telemedicine service flow may also include a second service type with a delay requirement value less than a preset delay threshold, such as a low-delay service. The network device may determine a penalty coefficient value for this type of service. Specifically, for the above-mentioned low-latency services, the network device can set α to 0.413 and β to 0.587. The above-mentioned telemedicine service flow may also include a third service type whose bandwidth demand value is greater than the bandwidth threshold, such as high-bandwidth services. The network device may determine a penalty coefficient value for this type of service. Specifically, for the above-mentioned high-bandwidth services, the network device can set α to 0.861 and β to 0.139. It should be noted that the service types of the above-mentioned telemedicine business flows are not limited to the above three types. Different penalty coefficients may be corresponding to different types of telemedicine business flows.

After the network device determines the penalty coefficient, it can combine the sampled remote business flow monitoring data to determine the service quality information. Specifically, each of the above network paths may include multiple links, for example, k links. The function for the network device to determine the quality of service information for each network path can be as follows:

Among them, Q represents the service quality information corresponding to a network path, Lost is the packet loss rate on link 1~k, Delay is the delay on link 1~k, Tanh function is the normalization function, and Dtarget is the target. The delay maximum value is the preset delay maximum value mentioned above, and α and β are the penalty coefficients.

Through the above embodiments, the network device can determine the service quality information of each network path based on parameters such as the packet loss rate, delay, and penalty coefficient of the network path, so that the network device can determine the path selection of the telemedicine service flow based on the service quality information. strategy to improve the transmission quality of telemedicine business flows.

In one embodiment, determining the network path selection strategy for the telemedicine business flow to be transmitted based on the comparison results between each quality of service information and the quality of service requirement threshold includes: for each quality of service information, obtaining the quality of service information and the quality of service The difference between the demand thresholds is used as the comparison result; the main network path is determined based on the network path with the largest difference and the service quality information is greater than the service quality demand threshold; the alternative network path is determined based on other network paths other than the main network path; Determine the network path selection strategy based on the primary network path and the alternative network path.

In this embodiment, after the network device determines the service quality information of each network path, it can determine which network path to select for transmission based on the service quality requirement threshold of the telemedicine business flow. Wherein, if there are multiple network paths, corresponding quality of service information can be obtained, and the network device can divide the multiple network paths into primary network paths and alternative network paths. For example, for each quality of service information, the network device can obtain the difference between the quality of service information and the corresponding quality of service requirement threshold as a comparison result. The network device can determine the primary network path based on the network path with the largest difference and the service quality information is greater than the service quality requirement threshold. For example, the network path corresponding to the service quality information that is greater than the maximum value of the service quality requirement threshold is used as the primary network path. The network device can also determine alternative network paths based on other network paths other than the primary network path. Therefore, the network device can determine the network path selection strategy based on the primary network path and the alternative network path.

Among them, the telemedicine business flow to be transmitted can be dynamically switched between the primary network path and the alternative network path based on the real-time service quality information of the network path. For example, in one embodiment, the network device may determine whether to switch the telemedicine service flow to the alternative network path based on the service quality information of the primary network path. Network equipment can sample telemedicine business flows transmitted through the primary network path to determine real-time service quality information. The network device may compare the service quality information corresponding to the primary selected network path with the corresponding service quality requirement threshold. If the service quality information corresponding to the main selected network path is greater than the service quality requirement threshold, the network device can determine the network path selection strategy to transmit the telemedicine service flow to be transmitted based on the main selected network path.

If the service quality information corresponding to the main selected network path is less than or equal to the service quality requirement threshold and less than the service quality information corresponding to the alternative network path, the network device can determine that the network path selection strategy is to transmit the telemedicine service flow to be transmitted based on the alternative network path. . The quality of service information corresponding to the alternative network path may be greater than the above-mentioned quality of service requirement threshold. The service quality monitoring of the above network paths can be determined based on sampling monitoring when transmitting the telemedicine business flow. That is, during the transmission process of the telemedicine business flow, multiple path switching can be performed to ensure the transmission quality of the business flow.

Specifically, during the business survival stage, that is, the stage of transmitting the above-mentioned telemedicine service flow to be transmitted, the software-defined network controller in the network device can sample and monitor the flow monitoring packets, for example, sample the telemedicine service flow carrying the flow instruction header identifier. By checking the service quality information, it is found that the service quality of the network path where the current telemedicine business flow is located is reduced, and the service quality is lower than the service quality of the alternative network path, then the software-defined network controller can send the service quality to the path network element in the network path. Deliver the path policy to enable the path network element to switch the transmission path to the alternative network path. In addition, if the software-defined network controller detects that the service quality of alternative network paths during sampling monitoring does not meet the service quality requirement threshold of the telemedicine business flow, the software-defined network controller can re-initialize the service from multiple network paths. Re-determine new alternative network paths.

Through the above embodiments, the network device obtains the service quality information of each network path through flow monitoring and sampling, and through dynamic switching, the telemedicine business flow is transmitted through the network path with higher service quality without the user being aware of it. Improved the quality of telemedicine service stream transmission.

In one embodiment, as shown in Figure 3, a method for transmitting telemedicine business flows is provided. This method is explained by taking the method applied to the telemedicine platform in Figure 1 as an example, and includes the following steps:

Step S302, in response to the telemedicine service flow instruction, generate a telemedicine service stream transmission request according to the network parameters of the telemedicine terminal corresponding to the telemedicine service flow instruction and the telemedicine service flow to be transmitted corresponding to the telemedicine service flow instruction.

The user can trigger telemedicine business flow instructions on the telemedicine platform, and the telemedicine platform can be a platform used to initiate telemedicine business flow requests. Among them, telemedicine business flows can include multiple types. The telemedicine platform can respond to the telemedicine business flow instructions, obtain the network parameters of the telemedicine terminal corresponding to the telemedicine business flow instructions, and obtain the telemedicine business flow to be transmitted corresponding to the telemedicine business flow instructions, so that the telemedicine platform can be based on the above network parameters and the telemedicine business flow to be transmitted, and generate a telemedicine business flow transmission request.

The network parameters of the above-mentioned telemedicine terminal may include multiple types, such as communication ports, network addresses, communication protocols, etc. Therefore, in one embodiment, the telemedicine platform can obtain the communication port, network address and communication protocol with the telemedicine terminal, and generate the telemedicine business flow based on the communication port, network address, communication protocol and the telemedicine business flow to be transmitted. Transfer request.

Specifically, the telemedicine platform can request the service flow coloring interface, that is, determine the interfaces in the network device that are compatible with the telemedicine platform. For example, the network quality data acquisition and control system in network equipment provides a secure hypertext transfer protocol interface. When the telemedicine platform calls this interface, it requires the digital certificate and digital token distributed by the above-mentioned network quality data acquisition and control system. Among them, the specific structure of the digital token can be: HASH SHA1 (request URI, timestamp, shared key, pre-distribution authentication ID). The telemedicine platform can send the telemedicine service stream transmission request to the network device in combination with the following parameters. The telemedicine service stream transmission request includes the service level of the medical service, IP addresses of both communicating parties, communication protocol, communication port, that is, quintuple information, etc.

Step S304: Send the telemedicine service stream transmission request to the network device using the above method.

After the telemedicine service stream transmission request is generated, the telemedicine platform can send the telemedicine service stream transmission request to the above network device. Specifically, it can be sent to the network quality data acquisition and control system in the network device. The network device can monitor the service quality of the network path based on the telemedicine service flow to be transmitted in the telemedicine service flow transmission request, and determine the path selection strategy for the telemedicine service flow to be transmitted.

In the above telemedicine business flow transmission method, a telemedicine business flow transmission request is sent to the telemedicine terminal through the telemedicine platform, and the network device performs multiple remote operations and maintenance corresponding to multiple network paths based on the telemedicine business flow to be transmitted in the request. Flow monitoring data is used to determine multiple service quality information of multiple network paths. Based on the comparison results between the service quality information and the corresponding service quality requirement threshold, the network path selection strategy for the telemedicine business flow to be transmitted is determined. Based on the network path selection strategy Transmit the telemedicine service flow to be transmitted to the telemedicine terminal. Compared with the traditional transmission of telemedicine business flows in a small-scale private network, this solution combines the monitoring data corresponding to the business flows to determine the service quality of multiple network paths between the platform and the terminal, and dynamically switches the service quality to the best Optimal network paths are used to transmit telemedicine business flows and improve the stability of transmission quality.

In one embodiment, as shown in Figure 4, Figure 4 is a schematic flowchart of a method for transmitting a telemedicine service flow in yet another embodiment. In this embodiment, the above-mentioned network devices may include edge network elements, network quality data acquisition and control systems, multiple path network elements, software-defined network controllers, etc. Among them, edge network elements carry out flow monitoring configuration for the above-mentioned telemedicine business flow, and path network elements along the way can report monitoring data to the network quality data analysis system.

The telemedicine platform can notify edge network elements through interfaces to perform flow detection configuration for specific key information of different business flows. Among them, the above-mentioned business flows can include low-latency, high-bandwidth, and zero packet loss lossless high-definition video transmission services for surgery; medium-bandwidth, low-latency consultation conference video transmission services; high-bandwidth medical digital imaging and communication large file transmission services wait. Business transmission can be performed in the business layer. Network path switching and quality of service monitoring can be performed at the network layer.

The software-defined network controller can perform dynamic routing calculations according to the optimal service quality assurance algorithm based on the differentiated service quality requirements of different telemedicine business flows and the monitoring data reported by the network quality data analysis system, and issue flow table configurations. This ensures that the telemedicine business flow to be transmitted is always transmitted on a network path with good service quality.

Among them, the edge network elements in the network equipment can configure remote business flow monitoring data during the service initialization stage. The edge network elements can send multiple groups of flow monitoring packets, that is, multiple groups of remote business flow monitoring data, where each group of flow monitoring packets corresponds to Different business types of business. For example, the edge network element sends each service flow twice according to the preset strategy of the software-defined network controller, with N monitoring packets each time, and the interval between the two monitoring packets is a preset time. By monitoring each service flow twice, the accuracy of initial determination of service quality is improved.

Moreover, during the service duration, that is, during the transmission of the above-mentioned telemedicine service flow, the edge network element can set a flow instruction header identifier every M times for the same group of service flows, for example, every M times for M telemedicine service flows of the same service type, This enables the software-defined network controller to perform sampling monitoring of the telemedicine business flow based on the flow instruction header identifier, so that the service quality information of each network path can be monitored in real time during transmission. Among them, M is the preset sampling ratio.

In addition, the software-defined network controller can determine the network path selection strategy. In the service initialization phase, for different service types of service flows, the software-defined network controller can preset multiple optional network paths or service flows, for example two. The software-defined network controller can continuously monitor a preset number of flow monitoring packets on two optional network paths, such as the above-mentioned remote business flow monitoring data. Report monitoring data through the network quality data acquisition and control system. The switching of the network path may be completed within a preset time interval. The software-defined network controller can determine the optimal network path selection strategy based on the structure of two machine-following flow monitoring. Moreover, during the service period, the software-defined network controller can also conduct sampling monitoring of telemedicine business flows to monitor the service quality information of the network path in real time to ensure the transmission quality of telemedicine business flows.

Through the above embodiments, by combining the monitoring data corresponding to the business flow, the service quality of multiple network paths between the platform and the terminal is determined, and the telemedicine business flow is transmitted by dynamically switching the network path with the best service quality, thereby improving the stability of the transmission quality. sex. In addition, through the collaborative method of software-defined network controller and flow monitoring, it is possible to provide telemedicine services with guaranteed service quality and dynamically switch the optimal path according to the link quality, thereby improving the quality of remote business stream transmission.

It should be understood that although the steps in the flowcharts involved in the above embodiments are shown in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated in this article, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily executed at the same time, but may be executed at different times. The execution order of these steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least part of the steps or stages in other steps.

Based on the same inventive concept, embodiments of the present application also provide a telemedicine service flow transmission device for implementing the above-mentioned telemedicine service flow transmission method. The implementation solution provided by this device to solve the problem is similar to the implementation solution recorded in the above method. Therefore, the specific limitations in the embodiments of the transmission device for one or more telemedicine business streams provided below can be found in the above article on telemedicine. The limitations of the service flow transmission method will not be described again here.

In one embodiment, as shown in Figure 5, a transmission device for telemedicine business flows is provided, including: a first acquisition module 500, a second acquisition module 502, a determination module 504 and a transmission module 506, wherein:

The first acquisition module 500 is used to obtain a telemedicine service stream transmission request sent by the telemedicine platform for the telemedicine terminal; the telemedicine service stream transmission request includes a telemedicine service stream to be transmitted.

The second acquisition module 502 is used to obtain multiple remote business flow monitoring data corresponding to multiple network paths of the telemedicine business flow to be transmitted; the remote business flow monitoring data is generated based on the monitoring configuration corresponding to the telemedicine business flow to be transmitted.

The determination module 504 is used to determine multiple service quality information corresponding to multiple network paths of the telemedicine service flow to be transmitted based on multiple remote service flow monitoring data.

The transmission module 506 is configured to determine the network path selection strategy for the telemedicine business flow to be transmitted based on the comparison results of each service quality information and the service quality requirement threshold, and transmit the telemedicine business flow to be transmitted to the telemedicine terminal based on the network path selection strategy. ;The service quality requirement threshold corresponds to the telemedicine business flow to be transmitted.

In one embodiment, the above device further includes: an input module for obtaining multiple original remote service flow monitoring data corresponding to the remote medical service flow to be transmitted; and adding multiple flow instruction header identifiers at preset intervals according to the communication port. From the original remote business flow monitoring data, multiple remote business flow monitoring data are obtained, and the multiple remote business flow monitoring data are input into multiple network paths respectively.

In one embodiment, the above-mentioned input module is used to obtain multiple remote service flow monitoring data from multiple network paths according to the flow instruction header identifier corresponding to the remote medical service flow to be transmitted.

In one embodiment, the above-mentioned determination module 504 is used to obtain, for each network path, the packet loss rate and delay corresponding to the remote business flow monitoring data on the network path; according to the packet loss rate, delay, and preset time The maximum delay value and the preset penalty coefficient are used to determine the service quality information corresponding to the remote business flow monitoring data on the network path.

In one embodiment, the above device also includes: a coefficient determination module for obtaining the delay demand value, packet loss demand value and bandwidth demand value corresponding to the telemedicine service flow to be transmitted; according to the delay demand value and the delay threshold The preset penalty coefficient is determined by comparing the result, the comparison result between the packet loss demand value and the packet loss threshold value, and the comparison result between the bandwidth demand value and the bandwidth threshold value.

In one embodiment, the above-mentioned transmission module 506 is used to obtain the difference between the service quality information and the service quality requirement threshold for each service quality information as a comparison result; according to the maximum difference and the service quality information is greater than the service quality requirement Determine the primary network path based on the threshold network path; determine the alternative network path based on other network paths other than the primary network path; determine the network path selection strategy based on the primary network path and alternative network paths.

In one embodiment, the above-mentioned transmission module 506 is used to determine the network path selection strategy to transmit the telemedicine service flow to be transmitted based on the primary network path if the service quality information corresponding to the primary network path is greater than the service quality requirement threshold; If the service quality information corresponding to the selected network path is less than or equal to the service quality requirement threshold and less than the service quality information corresponding to the alternative network path, it is determined that the network path selection strategy is to transmit the telemedicine business flow to be transmitted based on the alternative network path.

In one embodiment, as shown in Figure 6, a telemedicine service flow transmission device is provided, including: a response module 600 and a sending module 602, wherein:

The response module 600 is configured to respond to the telemedicine business flow instruction and generate a telemedicine service flow transmission request according to the network parameters of the telemedicine terminal corresponding to the telemedicine business flow instruction and the telemedicine business flow to be transmitted corresponding to the telemedicine business flow instruction. .

The sending module 602 is used to send the telemedicine service stream transmission request to the above-mentioned network device.

In one embodiment, the above-mentioned response module 600 is used to obtain the communication port, network address and communication protocol with the telemedicine terminal; and generate the telemedicine business flow according to the communication port, network address, communication protocol and the telemedicine business flow to be transmitted. Transfer request.

Each module in the above telemedicine business flow transmission device can be implemented in whole or in part by software, hardware, and combinations thereof. Each of the above modules may be embedded in or independent of the processor of the computer device in the form of hardware, or may be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

In one embodiment, a computer device is provided. The computer device may be a network device, and its internal structure diagram may be as shown in FIG. 7 . The computer device includes a processor, memory, and network interfaces connected through a system bus. Wherein, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes non-volatile storage media and internal memory. The non-volatile storage medium stores operating systems, computer programs and databases. This internal memory provides an environment for the execution of operating systems and computer programs in non-volatile storage media. The computer device's database is used to store remote business flow monitoring data. The network interface of the computer device is used to communicate with external terminals through a network connection. When the computer program is executed by the processor, a telemedicine service flow transmission method is implemented.

Those skilled in the art can understand that the structure shown in Figure 7 is only a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer equipment to which the solution of the present application is applied. Specific computer equipment can May include more or fewer parts than shown, or combine certain parts, or have a different arrangement of parts.

In one embodiment, a computer device is provided, including a memory and a processor. A computer program is stored in the memory. When the processor executes the computer program, the above-mentioned method for transmitting a telemedicine service stream is implemented.

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned transmission method of telemedicine service streams is implemented.

In one embodiment, a computer program product is provided, including a computer program that implements the above-mentioned method for transmitting telemedicine service streams when executed by a processor.

It should be noted that the user information (including but not limited to user equipment information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all It is information and data authorized by the user or fully authorized by all parties.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage. In the media, when executed, the computer program may include the processes of the above method embodiments. Any reference to memory, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetic variable memory (Magnetoresistive Random) Access Memory (MRAM), Ferroelectric Random Access Memory (FRAM), Phase Change Memory (PCM), graphene memory, etc. Volatile memory may include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration but not limitation, RAM can be in various forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM). The databases involved in the various embodiments provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include blockchain-based distributed databases, etc., but are not limited thereto. The processors involved in the various embodiments provided in this application may be general-purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to this.

The technical features of the above embodiments can be combined in any way. To simplify the description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, all possible combinations should be used. It is considered to be within the scope of this manual.

The above-described embodiments only express several implementation modes of the present application, and their descriptions are relatively specific and detailed, but should not be construed as limiting the patent scope of the present application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all fall within the protection scope of the present application. Therefore, the scope of protection of this application should be determined by the appended claims.

Claims (14)

1. A method for transmitting telemedicine business streams, characterized in that it is applied to network equipment, and the method includes: Obtain a telemedicine business stream transmission request sent by the telemedicine platform for the telemedicine terminal; the telemedicine business stream transmission request includes a telemedicine business stream to be transmitted; Obtain multiple remote business flow monitoring data corresponding to the telemedicine business flow to be transmitted on multiple network paths; the remote business flow monitoring data is generated based on the monitoring configuration corresponding to the telemedicine business flow to be transmitted; Determine a plurality of service quality information corresponding to the to-be-transmitted telemedicine service flow on multiple network paths according to the plurality of remote business flow monitoring data; Determine a network path selection strategy for the telemedicine service flow to be transmitted based on the comparison result between each service quality information and the service quality requirement threshold, and transmit the telemedicine service flow to be transmitted to the remote location based on the network path selection strategy Medical terminal; the service quality requirement threshold corresponds to the telemedicine business flow to be transmitted. 2. The method according to claim 1, characterized in that the telemedicine business flow to be transmitted includes a communication port; the method further includes: Obtain multiple original remote business flow monitoring data corresponding to the telemedicine business flow to be transmitted; According to the communication port, multiple flow command header identifiers are added to the multiple original remote service flow monitoring data at preset intervals to obtain the multiple remote service flow monitoring data, and the multiple remote service flow monitoring data are Data is input into the plurality of network paths respectively. 3. The method according to claim 2, characterized in that said obtaining multiple remote service flow monitoring data corresponding to multiple network paths of the to-be-transmitted telemedicine service flow includes: From the multiple network paths, multiple remote service flow monitoring data are obtained according to the flow instruction header identifier corresponding to the remote medical service flow to be transmitted. 4. The method according to claim 1, characterized in that, based on the plurality of remote service flow monitoring data, a plurality of service quality information corresponding to a plurality of network paths of the telemedicine service flow to be transmitted is determined, include: For each network path, obtain the packet loss rate and delay corresponding to the remote business flow monitoring data on the network path; According to the packet loss rate, the delay, the preset maximum delay value and the preset penalty coefficient, the service quality information corresponding to the remote business flow monitoring data on the network path is determined. 5. The method according to claim 4, characterized in that, the method further comprises: Obtain the delay demand value, packet loss demand value and bandwidth demand value corresponding to the telemedicine business flow to be transmitted; The preset penalty coefficient is determined based on the comparison result between the delay requirement value and the delay threshold, the comparison result between the packet loss requirement value and the packet loss threshold, and the comparison result between the bandwidth requirement value and the bandwidth threshold. . 6. The method according to claim 1, characterized in that determining the network path selection strategy for the telemedicine service flow to be transmitted based on the comparison result of each quality of service information and the quality of service requirement threshold includes: For each service quality information, obtain the difference between the service quality information and the service quality requirement threshold as a comparison result; Determine the primary network path based on the network path with the largest difference and whose service quality information is greater than the service quality requirement threshold; determine the alternative network path based on other network paths other than the primary network path; The network path selection strategy is determined based on the primary network path and the alternative network path. 7. The method according to claim 6, wherein determining the network path selection strategy based on the primary network path and the alternative network path includes: If the service quality information corresponding to the primary selected network path is greater than the service quality requirement threshold, determine the network path selection strategy to transmit the to-be-transmitted telemedicine service flow based on the primary selected network path; If the service quality information corresponding to the main selected network path is less than or equal to the service quality requirement threshold and less than the service quality information corresponding to the alternative network path, it is determined that the network path selection strategy is based on the alternative network path. Transmit the telemedicine service flow to be transmitted. 8. A method for transmitting telemedicine business streams, characterized in that it is applied to a telemedicine platform, and the method includes: In response to the telemedicine business flow instruction, generate a telemedicine business flow transmission request according to the network parameters of the telemedicine terminal corresponding to the telemedicine business flow instruction and the telemedicine business flow to be transmitted corresponding to the telemedicine business flow instruction; The telemedicine service stream transmission request is sent to the network device according to any one of claims 1 to 7. 9. The method according to claim 8, characterized in that the network parameters of the telemedicine terminal corresponding to the medical video service instruction and the telemedicine service flow to be transmitted corresponding to the telemedicine service flow instruction are generated. Telemedicine business streaming requests, including: Obtain the communication port, network address and communication protocol with the telemedicine terminal; A telemedicine service stream transmission request is generated according to the communication port, network address, communication protocol and the telemedicine service stream to be transmitted. 10. A device for transmitting telemedicine business flows, characterized in that it is applied to network equipment, and the device includes: The first acquisition module is used to obtain the telemedicine service stream transmission request sent by the telemedicine platform for the telemedicine terminal; the telemedicine service stream transmission request includes the telemedicine service stream to be transmitted; The second acquisition module is used to obtain multiple remote business flow monitoring data corresponding to the to-be-transmitted telemedicine business flow on multiple network paths; the remote business flow monitoring data is based on the monitoring data corresponding to the to-be-transmitted telemedicine business flow. Configuration generation; A determination module, configured to determine a plurality of service quality information corresponding to the to-be-transmitted telemedicine service flow on multiple network paths based on the plurality of remote service flow monitoring data; A transmission module, configured to determine a network path selection strategy for the telemedicine service flow to be transmitted based on a comparison result between each quality of service information and a quality of service requirement threshold, and to transmit the telemedicine service to be transmitted based on the network path selection strategy. flows to the telemedicine terminal; the service quality requirement threshold corresponds to the telemedicine business flow to be transmitted. 11. A transmission device for telemedicine business streams, characterized in that it is applied to a telemedicine platform, and the device includes: A response module configured to respond to a telemedicine business flow instruction and generate a telemedicine service based on the network parameters of the telemedicine terminal corresponding to the telemedicine business flow instruction and the telemedicine business flow to be transmitted corresponding to the telemedicine business flow instruction. streaming request; A sending module, configured to send the telemedicine service stream transmission request to the network device according to any one of claims 1 to 7. 12. A computer device, comprising a memory and a processor, the memory stores a computer program, characterized in that when the processor executes the computer program, the method of any one of claims 1 to 9 is implemented. step. 13. A computer-readable storage medium with a computer program stored thereon, characterized in that when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 9 are implemented. 14. A computer program product, comprising a computer program, characterized in that, when executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 9.