CN111064707A - Network resource transmission system and method based on virtualization technology - Google Patents

Abstract

A network resource transmission system and method based on virtualization technology belongs to the technical field of data communication. The system comprises a client, a server and a proxy, wherein the server generates pictures of computing resources, the server transmits the pictures to the proxy, the proxy assembles a plurality of rectangular pictures of the current computing resources into a complete picture, optimizes the computing resources through a picture compression algorithm and a picture cache mechanism, and transmits the optimized picture to the client so as to ensure that the client does not directly interact with the server.

Description

Network resource transmission system and method based on virtualization technology

Technical Field

The invention relates to a network resource transmission system based on a virtualization technology and a method thereof, belonging to the technical field of data communication.

Background

Application virtualization is a technical scheme for providing mobile office for enterprises in the mature field of cloud computing. The technical scheme of virtualization is applied to push the computing resources of the enterprise to the mobile equipment commonly used by the user, so that the user can complete the same work content as that of working in a local PC (personal computer) on different mobile equipment through a network.

The application virtualization technology generally adopts a two-layer system architecture, namely a client and a server. The "client" is installed on the mobile device and the "server" is installed on the server device where the computing resource is located. The client and the server communicate through a self-defined interaction protocol via a network, and the interactive content is mainly pictures of computing resources.

The main principle of the application virtualization technology is as follows: the server side encapsulates the computing resources on the server equipment into pictures, responds to the operation requests of the users through the network, transmits the pictures to the client side on the mobile equipment through the network, and displays the response content on the mobile equipment through the client side.

The server divides the current computing resource requested by the user into a plurality of rectangular pictures, transmits the rectangular pictures in batches through the network, and reassembles and displays the pictures after the client receives the pictures. The processing is to meet the requirement of local refreshing of the client, and when the client locally updates the content, the server only needs to transmit the rectangular picture with the changed content to the client instead of the whole picture.

As can be seen from the application of the virtualization technology implementation principle, since it mainly transmits pictures of computing resources over the network, not the original information stream, it needs to consume much larger network traffic than the original data. And because of frequent and large-scale transmission of picture resources, network congestion is easily caused, and the user experience can feel the situations of operation delay and the like. Therefore, how to improve the transmission efficiency of network resources and reduce the occupation of network traffic is a key index of the mobile virtualization technology.

Disclosure of Invention

The technical problem solved by the invention is as follows: the system and the method overcome the defects of the prior art, and provide a network resource transmission system based on a virtualization technology, wherein a proxy end is added on the basis of the traditional two-layer system architecture without changing the basic realization principle of the application of the virtualization technology, receives the pictures transmitted by a server end, reprocesses the pictures, and finally transmits the pictures to a client end through a network. The 'agent end' can assemble the picture fragments into a complete picture of computing resources in the reprocessing process of the picture, and reduces the capacity of the picture by adopting a high compression algorithm, so that the network transmission frequency and the capacity of network transmission resources are reduced, and the problems that the mobile virtualization technology occupies more network traffic and easily causes network congestion when transmitting the network resources are effectively solved.

The technical solution of the invention is as follows: a network resource transmission system based on virtualization technology comprises a client, a server and an agent;

the server side receives the operation request, reads the computing resource on the server equipment according to the user operation request, encapsulates the computing resource into a picture, and transmits the picture to the agent side through a user-defined interaction protocol;

the agent end receives the operation request sent by the client end and transmits the operation request to the server end; receiving the pictures transmitted by the server, reprocessing the pictures, and transmitting the pictures to the corresponding client sending the operation request through a user-defined interactive protocol;

the client sends an operation request to the agent end; and receiving the pictures transmitted by the agent terminal, caching the pictures, displaying the content of the computing resources on the mobile equipment and providing the operating function of the computing resources.

Further, the server and the agent are installed on a server device where the same computing resource is located.

Further, the client is arranged on the mobile device.

Furthermore, the server side and the agent side are in communication connection through local communication, and the agent side and the client side are in network transmission.

Further, the custom interaction protocol between the server side and the agent side, and between the agent side and the client side includes an RDP protocol or a VNC protocol.

A method for realizing a network resource transmission system based on the virtualization technology comprises the following steps:

step (1), receiving an operation request, reading computing resources on server equipment according to the user operation request, packaging the computing resources into pictures, and transmitting the pictures to an agent terminal through a user-defined interactive protocol;

step (2), the agent end receives an operation request sent by the client end, transmits the operation request to the server end, receives the picture transmitted by the server end, reprocesses the picture, and transmits the picture to the corresponding client end sending the operation request through a user-defined interactive protocol;

and (3) the client sends an operation request to the agent terminal, receives the pictures transmitted by the agent terminal, caches the pictures, displays the content of the computing resources on the mobile equipment and provides an operation function for the computing resources.

Further, the step (1) specifically includes:

(1-1) the client sends an operation request to the agent end, and the agent end detects whether corresponding cache content exists; if so, returning the cache content to the client, and terminating the operation; if not, the operation request is forwarded to the server side;

(1-2) the server reads the current computing resource according to the operation request;

(1-3) encapsulating the current computing resources into a rectangular picture by the server side;

and (1-4) the server side sends the rectangular picture to the agent side through a custom interaction protocol.

Further, in the step (2), the specific method includes:

(2-1) waiting for receiving an operation request sent by the client;

(2-2) detecting whether corresponding cache contents exist; if yes, the cache content is directly returned to the client side, the operation is terminated, and if not, the request is forwarded to the server side;

(2-3) receiving a rectangular picture of the current computing resource transmitted by the server;

(2-4) assembling the received rectangular pictures and packaging the rectangular pictures into a complete picture;

and (2-5) compressing and caching the picture by the proxy end, and then sending the picture to the client.

Further, the compression processing method comprises a JPEG compression algorithm and a JPEG-TUBOR compression algorithm.

Further, the step (3) specifically includes:

step (3-1): the client side waits for an operation request of a user.

Step (3-2): the client detects whether corresponding cache content exists; if so, extracting the cache content, and terminating the operation; if not, the request is forwarded to the agent end;

step (3-3): the client side waits for receiving the picture resource transmitted by the agent side;

step (3-4): the client decompresses the picture;

step (3-5): the client caches the pictures;

step (3-6): the client presents the picture content on the mobile device and provides the operational functionality of the computing resources.

Compared with the prior art, the invention has the advantages that:

(1) the invention reduces the frequency of network transmission resources and the capacity of the network transmission resources, and can effectively reduce the network resource blocking phenomenon.

(2) The invention transfers the pressure of assembling the picture fragments of the computing resources from the mobile equipment end to the server equipment end, and the computing capacity of the server equipment end is far greater than that of the mobile equipment end, so that the hardware capacity of the server equipment end can be fully utilized.

(3) The invention adds the proxy end on the basis of the original application virtualization technology, and the image compression algorithm and the image cache mechanism adopted by the proxy end correspond to the similar mechanisms in the original server end and the original client end, so that other technologies which are difficult to fuse with the application virtualization technology are not introduced.

(4) In the invention, the compressed complete picture of the computing resource is transmitted by the network instead of the original rectangular picture fragment of the computing resource, so that the phenomenon that the user feels refreshed in experience can be effectively relieved.

Drawings

Fig. 1 is a schematic diagram of interaction between a mobile device side and a server device side according to the present invention;

FIG. 2 is a flow chart of server-side processing data according to the present invention;

FIG. 3 is a flow chart of the proxy side processing data according to the present invention;

FIG. 4 is a flow chart of the client processing data according to the present invention.

Detailed Description

The invention is further described with reference to the following figures and examples.

The technical scheme of the invention follows the basic realization principle of applying virtualization technology, namely the resource transmitted through the network is the picture information of the computing resource, the mobile equipment end receives the picture information, and the server equipment end sends the picture information, which does not relate to the realization of specific interaction protocols between the server end and the agent end and between the agent end and the client.

The technical scheme of the invention does not relate to the installation process of the server side, the agent side and the client side.

As shown in fig. 1, the present technical solution includes: server side, agent side, customer end. The server side is installed on the server equipment and used for acquiring picture information of computing resources on the server equipment; the proxy end is arranged on the server equipment and is used for reprocessing the picture information; the client is arranged on the mobile equipment and used for displaying the picture information and providing an operation function.

The server side and the agent side form a picture information sender applying the virtualization technology, and the client side is a picture information receiver applying the virtualization technology.

On the basis of the traditional two-layer system architecture, the system is expanded into a three-layer system architecture: namely a client, a server and a proxy.

Compared with the traditional application virtualization technology, the method adds the agent end, and compared with the traditional technology, the client end does not directly interact with the server end, the interaction mode is changed into the mode that the client end and the agent end communicate with each other, and the agent end and the server end communicate with each other. The process is summarized as follows: the server side generates pictures of the computing resources, the server side transmits the pictures to the agent side, and the agent side transmits the pictures to the client side through the network.

In the method, a server end and an agent end are installed on server equipment where the same computing resource is located. The client is installed on the user's mobile device. The communication between the server side and the agent side does not occupy network resources, and only the communication between the agent side and the client side is transmitted through the network.

According to the method, a user-defined interaction protocol is adopted for communication between a server side and an agent side, a calculation resource picture generated by the server side is sent to the agent side through the user-defined interaction protocol, the agent side assembles a plurality of rectangular pictures of the current calculation resource into a complete picture, the calculation resource is optimized through a picture compression algorithm and a picture caching mechanism, and finally the optimized picture is sent to a client side through the user-defined interaction protocol.

The server device refers to a hardware host providing computing operation capability in a traditional sense, such as a server device of a brand such as a fancy brand or a wave.

The mobile device refers to a handheld device of a user in a traditional sense, such as a mobile phone or a tablet computer.

The computing resource refers to application software installed on a server side, for example, software for processing a document is a computing resource.

The current computing resource refers to a current resource that a user requests to operate, for example, a document being read is the current resource.

Server-side refers to a software implementation for collecting computing resource functions on a server device.

Client, refers to a software implementation for presenting and providing operational functionality on a mobile device.

The user-defined interactive protocol refers to a network protocol with a user-defined format which can be identified by both a data sender and a data receiver, wherein the sender assembles data according to the format of the protocol, and the receiver analyzes the data according to the format of the protocol. The custom interaction protocol here follows mobile virtualization technology, e.g. similar to the RDP protocol or VNC protocol.

The rectangular picture means that the current computing resource is composed of a plurality of pictures with different sizes, and the pictures are collectively called the rectangular picture. For example, a current document is composed of a plurality of rectangular pictures of unequal sizes.

The picture compression algorithm is a method capable of compressing a picture of an original size into a picture of a smaller size by some calculation.

The picture caching mechanism is a mechanism that can temporarily store an accessed picture and directly extract a resource from the stored resource when the same resource is accessed again.

The technical scheme of the invention comprises the following steps:

(1) the server side reads the computing resources on the server equipment, packages the computing resources into pictures, and transmits the pictures to the agent side through a self-defined interactive protocol.

(2) And the proxy end receives the pictures transmitted by the server end, reprocesses the pictures, and transmits the pictures to the client end through a self-defined interactive protocol.

(3) The client receives the pictures transmitted by the agent terminal, caches the pictures, displays the content of the computing resources on the mobile equipment and provides the operating function of the computing resources.

The computing resources in the step (1) refer to various application software used by a user installed on the server equipment; the customized interaction protocol refers to an interaction protocol capable of realizing application virtualization technology, and is similar to an RDP protocol or a VNC protocol.

The reprocessing in the step (2) is a process of assembling an original picture, compressing the original picture by adopting a high compression ratio algorithm and processing data by adopting a cache mechanism; the customized interaction protocol is consistent with the description in step (1).

The caching in step (3) means that the resource is kept in the memory for the next use, and is consistent with the concept of the caching mechanism in step (2).

As shown in fig. 2, the server is a software implementation and needs to be installed on the server device. When a user uses user software installed on server equipment on mobile equipment by applying a virtualization technology, server software first acquires rectangular pictures of current computing resources, then sends the picture resources to a proxy end in batches through an interaction protocol, and the proxy end performs processing such as assembling, compressing, caching and the like on the pictures. The specific working steps of the server side are as follows:

step (1-1): the server side waits for receiving the current operation request. The request is sent by the client, and is firstly sent to the agent end, the agent end detects whether corresponding cache content exists, if so, the cache content is directly returned to the client, and the operation is terminated; if not, the request is forwarded to the server side.

Step (1-2): the server side reads the current computing resources on the server device.

Step (1-3): and the server encapsulates the current computing resource into a rectangular picture.

Step (1-4): and the server side sends the rectangular picture to the agent side through a custom interaction protocol.

As shown in fig. 3, the proxy side is a software implementation and needs to be installed on the server device. When a user uses user software installed on server equipment on mobile equipment by applying a virtualization technology, a proxy end firstly receives all rectangular pictures of current computing resources, then performs assembling processing on the pictures to generate a complete picture, then performs compression processing and cache processing on the pictures, and finally sends the picture resources to a client end on the mobile equipment through a user-defined interaction protocol. The specific working steps of the agent end are as follows:

step (2-1): the agent side waits for receiving the current operation request. The request is issued by the client.

Step (2-2): the proxy end detects the cache content. If the relevant cache content is detected, directly returning the cache content to the client, and terminating the operation; if not, the request is forwarded to the server side.

Step (2-3): and the proxy end waits for receiving the picture resource transmitted by the server end. The proxy receives all the rectangular pictures of the current computing resource.

Step (2-4): and the agent end assembles the received rectangular picture and finally encapsulates the rectangular picture into a complete picture.

Step (2-5): and the proxy end compresses the picture.

Step (2-6): and the proxy end caches the pictures.

Step (2-7): and the proxy side sends the pictures to the client side through the custom interaction protocol.

The compression processing is to compress the picture size from high capacity to low capacity by using a certain compression algorithm, for example, a JPEG compression algorithm or a JPEG-turbo compression algorithm with a higher compression ratio may be used.

The caching process means that the picture resources are stored in the memory for the next call. For example, an index may be generated for a picture by using an MD5 code, the latest 10 pictures are cached, and when the user operates the same resource again, the agent obtains the corresponding picture from the memory according to the index, and sends the picture to the client.

As shown in fig. 4, the client is a software implementation that needs to be installed on the mobile device. When a user uses user software installed on a server device on a mobile device by applying a virtualization technology, a client first queries cache content and, if not, requests an agent for operating content. The specific working steps of the client are as follows:

step (3-1): the client side waits for an operation request of a user.

Step (3-2): the client detects the cache content. If the relevant cache content is detected, extracting the cache content, and terminating the operation; if not, the request is forwarded to the agent.

Step (3-3): and the client side waits for receiving the picture resource transmitted by the agent side.

Step (3-4): and the client decompresses the picture.

Step (3-5): and the client caches the pictures.

Step (3-6): the client displays the picture content on the mobile device and provides a user operation function.

The decompression processing refers to that a certain decompression algorithm is adopted to restore the size of the picture to the original capacity and the original data format, and the decompression algorithm is relative to the compression algorithm. For example using the JPEG decompression algorithm.

And caching processing is consistent with the caching processing process. For example, an index may be generated for the pictures by using MD5 code, the latest 10 pictures are cached, and when the user operates the same resource again, the client acquires the corresponding picture from the memory according to the index and directly displays the picture on the mobile device.

Those skilled in the art will appreciate that those matters not described in detail in the present specification are well known in the art.

Claims (10)

1. A network resource transmission system based on virtualization technology is characterized in that: the system comprises a client, a server and an agent;

the server side receives the operation request, reads the computing resource on the server equipment according to the user operation request, encapsulates the computing resource into a picture, and transmits the picture to the agent side through a user-defined interaction protocol;

the agent end receives the operation request sent by the client end and transmits the operation request to the server end; receiving the pictures transmitted by the server, reprocessing the pictures, and transmitting the pictures to the corresponding client sending the operation request through a user-defined interactive protocol;

the client sends an operation request to the agent end; and receiving the pictures transmitted by the agent terminal, caching the pictures, displaying the content of the computing resources on the mobile equipment and providing the operating function of the computing resources.

2. A virtualization technology based network resource transfer system as claimed in claim 1, wherein: the server and the agent are installed on the same server equipment where the computing resources are located.

3. A virtualization technology based network resource transfer system as claimed in claim 2, wherein: the client is arranged on the mobile equipment.

4. A virtualization technology based network resource transfer system as claimed in claim 1, wherein: the server side and the agent side are in communication connection through local communication, and the agent side and the client side are in network transmission.

5. A virtualization technology based network resource transfer system as claimed in claim 4, wherein: the self-defined interaction protocol between the server side and the agent side and between the agent side and the client side comprises an RDP protocol or a VNC protocol.

6. A method implemented based on the system of any one of claims 1-5, comprising the steps of:

step (1), receiving an operation request, reading computing resources on server equipment according to the user operation request, packaging the computing resources into pictures, and transmitting the pictures to an agent terminal through a user-defined interactive protocol;

step (2), the agent end receives an operation request sent by the client end, transmits the operation request to the server end, receives the picture transmitted by the server end, reprocesses the picture, and transmits the picture to the corresponding client end sending the operation request through a user-defined interactive protocol;

and (3) the client sends an operation request to the agent terminal, receives the pictures transmitted by the agent terminal, caches the pictures, displays the content of the computing resources on the mobile equipment and provides an operation function for the computing resources.

7. The method according to claim 6, wherein the step (1) specifically comprises:

(1-1) the client sends an operation request to the agent end, and the agent end detects whether corresponding cache content exists; if so, returning the cache content to the client, and terminating the operation; if not, the operation request is forwarded to the server side;

(1-2) the server reads the current computing resource according to the operation request;

(1-3) encapsulating the current computing resources into a rectangular picture by the server side;

and (1-4) the server side sends the rectangular picture to the agent side through a custom interaction protocol.

8. The method as claimed in claim 6, wherein in the step (2), the specific method comprises the following steps:

(2-1) waiting for receiving an operation request sent by the client;

(2-2) detecting whether corresponding cache contents exist; if yes, the cache content is directly returned to the client side, the operation is terminated, and if not, the request is forwarded to the server side;

(2-3) receiving a rectangular picture of the current computing resource transmitted by the server;

(2-4) assembling the received rectangular pictures and packaging the rectangular pictures into a complete picture;

and (2-5) compressing and caching the picture by the proxy end, and then sending the picture to the client.

9. The method of claim 8, wherein the method of compression processing includes a JPEG compression algorithm and a JPEG-turbo compression algorithm.

10. The method according to claim 6, wherein the step (3) specifically comprises:

step (3-1): the client side waits for an operation request of a user.

Step (3-2): the client detects whether corresponding cache content exists; if so, extracting the cache content, and terminating the operation; if not, the request is forwarded to the agent end;

step (3-3): the client side waits for receiving the picture resource transmitted by the agent side;

step (3-4): the client decompresses the picture;

step (3-5): the client caches the pictures;

step (3-6): the client presents the picture content on the mobile device and provides the operational functionality of the computing resources.

Images