CN111770155B

CN111770155B - Data processing method, device, storage medium and processor

Info

Publication number: CN111770155B
Application number: CN202010589763.XA
Authority: CN
Inventors: 曹玉娟; 张献; 鹿泽州; 欧余军; 孟彦鹏; 王兆岩
Original assignee: Unit 63920 Of Pla
Current assignee: Unit 63920 Of Pla
Priority date: 2020-01-03
Filing date: 2020-06-24
Publication date: 2023-03-24
Anticipated expiration: 2040-06-24
Also published as: CN111770155A

Abstract

The invention discloses a data processing method, a data processing device, a storage medium and a processor. The method comprises the following steps: receiving downlink data sent by a spacecraft, analyzing the downlink data by using a space-ground data communication protocol and separating a first IP request packet; packaging the first IP request packet to obtain an IP request packaging packet; sending the IP request encapsulation packet to a proxy server, wherein the IP request encapsulation packet is reduced to a second IP request packet by the proxy server, and the second IP request packet is sent to a service server; and acquiring an IP reply encapsulating packet sent by the proxy server, and sending the IP reply encapsulating packet to the spacecraft through an uplink by using a world data communication protocol, wherein the IP reply encapsulating packet is obtained by encapsulating the redirected IP reply packet by the proxy server. The invention solves the technical problem that seamless connection of IP data is difficult to carry out in a ground communication network and a space communication network.

Description

Data processing method, device, storage medium and processor

Technical Field

The invention relates to the field of aerospace measurement and control, in particular to a data processing method, a data processing device, a storage medium and a processor.

Background

Currently, the space data system Consulting Committee (CCSDS) issues a proposal based on an interconnection Protocol (Internet Protocol, IP for short) data (IP Over CCSDS) between CCSDS space link carrier networks, and provides guidance for realizing transmission of an IP request packet on the CCSDS space data link Protocol between a spacecraft and a ground system. The basic process is that a CCSDS Internet Protocol Extension (IPE) leading head field is added to an IP request packet to be used as a data field to form a CCSDS data packet, an application layer between a ground central node and an equipment node adopts a ground protocol, and real-time data exchange is carried out after the CCSDS data packet is encapsulated.

However, no suggestion is given on how to seamlessly connect the terrestrial communication network and the spatial communication network by the IP Over CCSDS.

Because the difference between the space and the ground bottom layer link is large, the Internet access of the IP request packet is greatly different from the access of the common Internet (Internet). A HyperText Transfer Protocol (HTTP), a File Transfer Protocol (FTP), and a Simple Mail Transfer Protocol (SMTP), which are commonly used for ground Internet access, are generally carried over a Transmission Control Protocol (TCP). Although there may be multiple intermediate layers such as gateways, proxies and tunnels, these intermediate layers only serve as routing, do not change the source address and destination address of the IP data, and both the request data and the reply data can be correctly addressed to the destination computer. The IP data transmitted between the heaven and the earth are different, an IP request packet of the spacecraft client is encapsulated in a PDXP/CCSDS AOS frame and is transmitted to the ground, and due to the difference of heaven and earth networks, the IP data cannot be directly routed and addressed; similarly, for the IP reply packet of the ground service data, the router will directly discard the spacecraft client because the spacecraft client does not exist in the ground network; the IP request packet and the reply packet cannot be addressed correctly, and cannot complete the control process of the TCP protocol for reliable data transmission, so that seamless connection between the ground communication network and the space communication network is difficult to achieve.

In view of the above technical problem that seamless connection of IP data is difficult in the terrestrial communication network and the spatial communication network, no effective solution has been proposed at present.

Disclosure of Invention

The embodiment of the invention provides a data processing method, a data processing device, a storage medium and a processor, which are used for at least solving the technical problem that seamless connection of IP data is difficult to carry out in a ground communication network and a space communication network.

According to an aspect of an embodiment of the present invention, a data processing method is provided. The method can comprise the following steps: receiving downlink data sent by a spacecraft, analyzing the downlink data by using a space-ground data communication protocol and separating a first IP request packet; packaging the first IP request packet to obtain an IP request packaging packet; sending the IP request encapsulation packet to a proxy server, wherein the IP request encapsulation packet is reduced to a second IP request packet by the proxy server, the second IP request packet is sent to a service server, the second IP request packet is responded by the service server to generate an IP reply packet, and the IP reply packet is redirected to the proxy server by a switch; and acquiring an IP reply encapsulation packet sent by the proxy server, and sending the IP reply encapsulation packet to the spacecraft through an uplink by using a world data communication protocol, wherein the IP reply encapsulation packet is obtained by encapsulating the redirected IP reply packet by the proxy server.

Optionally, parsing the downlink data and separating the first IP request packet by using a world data communication protocol includes: and resolving and separating the first IP request packet of the world communication downlink according to the world data communication protocol.

Optionally, sending the IP request encapsulation packet to the proxy server includes: and sending the IP request encapsulation packet to the proxy server in a multicast mode or a request mode.

Optionally, the obtaining of the IP reply encapsulation packet sent by the proxy server includes: and using the original socket to obtain an IP reply encapsulation packet with the destination address of the spacecraft client.

Optionally, the data processing method is executed by a protocol conversion server.

According to another aspect of the embodiments of the present invention, another data processing method is also provided. The method comprises the following steps: acquiring an IP request encapsulation packet sent by a protocol conversion server, wherein the IP request encapsulation packet is obtained by encapsulating a first IP request packet by the protocol conversion server, and the first IP request packet is obtained by analyzing and separating downlink data sent by a spacecraft by the protocol conversion server by using a space-ground data communication protocol; restoring the IP request encapsulation packet into a second IP request packet; sending a second IP request packet to the service server through the original socket, wherein the second IP request packet is responded by the service server to generate an IP reply packet; and acquiring an IP reply packet sent by the service server and redirected by the switch, packaging the redirected IP reply packet to obtain an IP reply packaging packet, and sending the IP reply packaging packet to the protocol conversion server, wherein the IP reply packaging packet is sent to the spacecraft by the protocol conversion server through an uplink by using a world data communication protocol.

Optionally, obtaining an IP reply packet sent by the service server and redirected by the switch includes: and screening the IP reply packets with the destination addresses being the redirection of the spacecraft client side from the received multiple IP reply packets.

Optionally, the method further comprises: multiple IP reply packets sent to the native machine are received through the original socket.

Optionally, the data processing method is executed by a proxy server.

According to another aspect of the embodiments of the present invention, another data processing method is also provided. The method comprises the following steps: acquiring an IP reply packet sent by a service server, wherein the IP reply packet is obtained by the service server responding to a second IP request packet, the second IP request packet is obtained by the proxy server restoring an IP request encapsulation packet and is sent to the service server by the proxy server through an original socket, the IP request encapsulation packet is obtained by the protocol conversion server encapsulating a first IP request packet, and the first IP request packet is obtained by the protocol conversion server analyzing and separating downlink data sent by a spacecraft by using a space-ground data communication protocol; and redirecting the IP reply packet to a proxy server, wherein the redirected IP reply packet is encapsulated by the proxy server to obtain an IP reply encapsulating packet, the IP reply encapsulating packet is sent to a protocol conversion server by the proxy server, and the IP reply encapsulating packet is sent to the spacecraft by the protocol conversion server through an uplink by using a space-ground data communication protocol.

Optionally, redirecting the IP reply packet to the proxy server comprises: and in the case that the destination address of the IP reply packet is the spacecraft client, redirecting the IP reply packet to the proxy server.

Optionally, the data processing method is executed by a switch.

According to another aspect of the embodiment of the invention, a data processing system is also provided. The system comprises: the protocol conversion server is used for receiving downlink data sent by the spacecraft, analyzing the downlink data by using a space-ground data communication protocol, separating a first IP request packet, and encapsulating the first IP request packet to obtain an IP request encapsulation packet; the proxy server is connected with the protocol conversion server and used for restoring the IP request encapsulation packet into a second IP request packet; the service server is connected with the proxy server and used for responding to the second IP request packet and generating an IP reply packet; the exchanger is connected between the service server and the proxy server and used for redirecting the IP reply packet sent by the service server to the proxy server; the proxy server is used for encapsulating the IP reply packet to obtain an IP reply encapsulating packet and sending the IP reply encapsulating packet to the protocol conversion server, and the protocol conversion server sends the IP reply encapsulating packet to the spacecraft through an uplink by using a world data communication protocol.

Optionally, the proxy server is configured to send the second IP request packet to the service server through the original socket.

Optionally, the switch is configured to redirect the IP reply packet to the proxy server if the destination address of the IP reply packet is the spacecraft client.

According to another aspect of the embodiment of the invention, a data processing device is also provided. The device is arranged in the protocol conversion server and comprises: the receiving unit is used for receiving the downlink data sent by the spacecraft, analyzing the downlink data by using a space-ground data communication protocol and separating a first IP request packet; the encapsulation unit is used for encapsulating the first IP request packet to obtain an IP request encapsulation packet; sending the IP request encapsulation packet to a proxy server, wherein the IP request encapsulation packet is reduced to a second IP request packet by the proxy server, the second IP request packet is sent to a service server, the second IP request packet is responded by the service server to generate an IP reply packet, and the IP reply packet is redirected to the proxy server by a switch; and the first acquisition unit is used for acquiring the IP reply encapsulation packet sent by the proxy server and sending the IP reply encapsulation packet to the spacecraft through an uplink by using a space-ground data communication protocol, wherein the IP reply encapsulation packet is obtained by encapsulating the redirected IP reply packet by the proxy server.

According to another aspect of the embodiments of the present invention, there is provided another data processing apparatus. The device is arranged in a proxy server and comprises: the second acquisition unit is used for acquiring an IP request encapsulation packet sent by the protocol conversion server, wherein the IP request encapsulation packet is obtained by encapsulating the first IP request packet by the protocol conversion server, and the first IP request packet is obtained by analyzing and separating downlink data sent by the spacecraft by the protocol conversion server by using a space-ground data communication protocol; the restoration unit is used for restoring the IP request encapsulation packet into a second IP request packet; a sending unit, configured to send the second IP request packet to the service server through the original socket, where the second IP request packet is responded by the service server to generate an IP reply packet; and the third acquisition unit is used for acquiring the IP reply packet sent by the service server and redirected by the switch, encapsulating the redirected IP reply packet to obtain an IP reply encapsulation packet, and sending the IP reply encapsulation packet to the protocol conversion server, wherein the IP reply encapsulation packet is sent to the spacecraft by the protocol conversion server through an uplink by using a world data communication protocol.

According to another aspect of the embodiments of the present invention, there is provided another data processing apparatus. The device sets up in the switch, includes: a fourth obtaining unit, configured to obtain an IP reply packet sent by a service server, where the IP reply packet is obtained by a service server responding to a second IP request packet, the second IP request packet is obtained by a proxy server restoring an IP request encapsulation packet, and the proxy server sends the IP request encapsulation packet to the service server through an original socket, the IP request encapsulation packet is obtained by a protocol conversion server encapsulating a first IP request packet, and the first IP request packet is obtained by the protocol conversion server analyzing and separating downlink data sent by a spacecraft by using a world data communication protocol; and the redirection unit is used for redirecting the IP reply packet to the proxy server, wherein the redirected IP reply packet is encapsulated by the proxy server to obtain an IP reply encapsulation packet, the IP reply encapsulation packet is sent to the protocol conversion server by the proxy server, and the IP reply encapsulation packet is sent to the spacecraft by the protocol conversion server through an uplink by using a world data communication protocol.

According to another aspect of the embodiments of the present invention, there is also provided a storage medium. The storage medium comprises a stored program, wherein when the program runs, the device where the storage medium is located is controlled to execute the data processing method of the embodiment of the invention.

According to another aspect of the embodiments of the present invention, there is also provided a processor. The processor is used for running a program, wherein the program executes the data processing method of the embodiment of the invention when running.

In the embodiment of the invention, downlink data sent by a spacecraft are received, the downlink data are analyzed by using a space-ground data communication protocol, and a first IP request packet is separated; packaging the first IP request packet to obtain an IP request packaging packet; sending the IP request encapsulation packet to a proxy server, wherein the IP request encapsulation packet is reduced to a second IP request packet by the proxy server, the second IP request packet is sent to a service server, the second IP request packet is responded by the service server to generate an IP reply packet, and the IP reply packet is redirected to the proxy server by a switch; the IP reply encapsulation packet sent by the proxy server is obtained, and the IP reply encapsulation packet is sent to the spacecraft by an uplink by using a world data communication protocol, wherein the IP reply encapsulation packet is obtained by encapsulating the redirected IP reply packet by the proxy server, so that the IP request packet of the spacecraft client and the IP reply packet of the service server can be correctly addressed, the world-to-earth integrated end-to-end communication is achieved, the problem that the IP request packet of the spacecraft client and the IP reply packet of the service server cannot be correctly addressed and the seamless connection of the IP data of the ground communication network and the space communication network cannot be realized is solved, the technical problem that the seamless connection of the IP data is difficult to carry out in the ground communication network and the space communication network is solved, and the technical effect of carrying out the seamless connection of the IP data in the ground communication network and the space communication network is achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic diagram of a data processing system according to an embodiment of the present invention;

FIG. 2 is a flow chart of a method of data processing according to an embodiment of the present invention;

FIG. 3 is a flow diagram of another data processing method according to an embodiment of the invention;

FIG. 4 is a flow diagram of another data processing method according to an embodiment of the invention;

FIG. 5 is an interactive illustration of a processing method of a data processing system according to an embodiment of the present invention;

FIG. 6 is a diagram illustrating an IPE header and IP PDU and IP data format carried by a CCSDS encapsulation packet according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a data processing apparatus according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of another data processing apparatus according to an embodiment of the present invention; and

FIG. 9 is a schematic diagram of another data processing apparatus according to an embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example 1

The embodiment of the invention provides a data processing system.

FIG. 1 is a schematic diagram of a data processing system according to an embodiment of the present invention. As shown in FIG. 1, the data processing system 10 may include: a protocol conversion server 11, a proxy server 12, a service server 13, and a switch 14.

The protocol conversion server 11 is configured to receive downlink data sent by the spacecraft, analyze the downlink data using a space-ground data communication protocol, separate a first IP request packet, and encapsulate the first IP request packet to obtain an IP request encapsulation packet.

In this embodiment, the Protocol conversion server 11, that is, the ground Protocol conversion server, is configured to implement a Protocol conversion service, and is configured to analyze and separate downlink Data sent by the spacecraft according to a certain Protocol format to obtain a first IP request packet, for example, according to an IP Over CCSDS Protocol, analyze and separate the downlink Data in a Protocol Data Unit (MAC, MPDU for short)/EPDU Protocol format to obtain an IP first request packet, and encapsulate the first IP request packet to obtain an IP request encapsulation packet, where the IP request encapsulation packet, that is, an IP Data encapsulation packet, may be sent to the proxy server 12 according to an agreed format. Alternatively, the protocol conversion server 11 of this embodiment may send the IP request encapsulation packet to the proxy server 12 in a multicast mode or an on-demand mode.

Optionally, the IPE header and the IP protocol data unit and the IP data format carried by the CCSDS encapsulation packet in this embodiment may be: the MPDU comprises an M _ PDU leader and an M _ PDU Bao Yu, wherein the M _ PDU packet domain can comprise the end of the kth packet, the mth packet of the kth +1 packet … … and the beginning of the mth +1 packet; the EPDU may comprise a CCSDS encapsulation packet header, a CCSDS IPE header and an IP protocol data unit; the IP data comprises a header and a data portion, wherein the header comprises a source address and a destination address.

And the proxy server 12 is connected with the protocol conversion server 11 and is used for reducing the IP request encapsulation packet into a second IP request packet.

In this embodiment, the proxy server 12, that is, proxy server software, operates in a network layer, is connected to the protocol conversion server 11, and is configured to implement proxy service, receive the IP request encapsulation packet sent by the protocol conversion server 11, and restore the IP request encapsulation packet to obtain a second IP request packet, where the second IP request packet is a common IP request packet of a ground network, that is, the first IP request packet of the spacecraft client is processed as a common IP request packet of the ground network.

And the service server 13 is connected with the proxy server 12 and is used for responding to the second IP request packet and generating an IP reply packet.

In this embodiment, the service server 13 may be an HTTP server/SMTP server/FTP server, and may implement a WEB page (WEB) service. After receiving the IP request packet sent by the proxy server 12, the service server 13 may respond to the IP request packet, that is, reply to the IP request packet, and generate an IP reply packet, where the IP reply packet, that is, the service reply packet and the IP reply packet, may have a destination address that is an IP address of the spacecraft client, that is, the service server 13 responds to the IP request packet, and generates an IP reply packet having a destination address that is a spacecraft client, where the spacecraft client may be a notebook used by a spacecraft.

And a switch 14 connected between the service server 13 and the proxy server 12, for redirecting the IP reply packet sent by the service server 13 to the proxy server 12.

Since the destination address of the IP reply packet of the service server 13 is the spacecraft client, but the destination address of the IP reply packet does not exist in the ground network, the IP reply packet is usually discarded. In this embodiment, a switch 14 may be provided, the switch 14 is disposed between the service server 13 and the proxy server 12, and the switch 14 may be previously set on the router, perform redirection setting on the IP reply packet on the switch 14, and redirect the IP reply packet to the proxy server 12.

Optionally, after the switch 14 redirects the IP reply packet to the proxy server 12, the proxy server 12 encapsulates the IP reply packet to obtain an IP reply encapsulation packet, and may encapsulate the IP reply packet according to an internal interface, perform CCSDS AOS frame framing to obtain an IP reply encapsulation packet, and send the IP reply encapsulation packet to the protocol conversion server 11, where the protocol conversion server 11 may further send the IP reply encapsulation packet to the spacecraft through the uplink using the world data communication protocol to perform service reply.

The above-described data processing system of this embodiment is further described below.

As an alternative embodiment, the proxy server 12 is configured to send the second IP request packet to the service server 13 through the original socket.

In this embodiment, after the proxy server 12 reverts the IP request encapsulation packet to the second IP request packet, the proxy server 12 may forward it to the traffic server 13 on the ground through a raw Socket (Row Socket).

As an alternative embodiment, the switch 14 is configured to redirect the IP reply packet to the proxy server 12 if the destination address of the IP reply packet is a spacecraft client.

In this embodiment, the switch 14 is configured to redirect the IP reply packet, and may first determine whether the destination address of the IP reply packet is a spacecraft client, and if the destination address of the IP reply packet is determined to be a spacecraft client, the switch 14 redirects the IP reply packet to the proxy server 12.

Optionally, in this embodiment, the proxy server 12 is configured to filter out the redirected IP reply packet addressed to the spacecraft client from the received multiple IP reply packets. The proxy server 12 may receive all IP reply packets sent to the local computer through the original socket, screen out an IP reply packet whose destination address is the redirection of the astronaut client, and then encapsulate the IP reply packet according to the internal interface to obtain an IP reply encapsulation packet, and then send the IP reply encapsulation packet to the protocol conversion server 11.

In the data processing system of the embodiment, the protocol conversion server 11 receives downlink data sent by the spacecraft, the downlink data is analyzed by using a space-ground data communication protocol, the first IP request packet is separated, and the first IP request packet is encapsulated to obtain an IP request encapsulation packet; the proxy server 12 is connected with the protocol conversion server 11, and the IP request encapsulation packet is reduced to a second IP request packet; the service server 13 is connected with the proxy server 12, and responds to the second IP request packet to generate an IP reply packet; the IP reply packet sent by the service server 13 is redirected to the proxy server 12 by connecting the switch 14 with the service server 13; the proxy server 12 is configured to encapsulate the IP reply packet to obtain an IP reply encapsulation packet, and send the IP reply encapsulation packet to the protocol conversion server 11, where the protocol conversion server 11 uses a world data communication protocol to send the IP reply encapsulation packet to the spacecraft through an uplink, so that the IP request packet of the spacecraft client and the IP reply packet of the service server can be correctly addressed, thereby achieving world-wide integrated end-to-end communication, and thus completing a world IP data "request-reply" process, shielding differences between the world link and the protocol, completing world-to-earth internet access, achieving world-wide integrated end-to-end communication, and avoiding that the seamless connection between the ground communication network and the space communication network cannot be achieved because the IP request packet and the IP reply packet of the service server 13 cannot be correctly addressed, thereby solving the technical problem that the seamless connection between the ground communication network and the space communication network is difficult to perform IP data seamless connection, and achieving the technical effect of performing the seamless connection between the ground communication network and the space communication network on IP data.

The data processing system of the embodiment designs a ground software and hardware processing architecture for interconnection and intercommunication between the world IP networks, constructs a brand new information interaction platform for the astronaut and the spacecraft to access the ground network, realizes transparent access and interoperation between the spacecraft network and the ground network, and can shield the difference of world links and protocols through key technologies such as proxy service, IP reply packet redirection, IP request packet analysis, destination address identification, addressing, service data transmission and the like, thereby realizing world-ground integrated end-to-end communication; the coupling degree with the traditional measurement and control service is small, so that the remote measurement and control service is not influenced; the system can realize seamless butt joint with the existing ground network technology, protocol and product, thereby effectively reducing the space task cost; in addition, the proxy service works in a network layer, only an IP request packet is concerned, the technical details of an application layer HTTP/SMTP/FTP protocol do not need to be concerned, the interaction of complex TCP protocol of a transmission layer, handshake connection establishment of a session layer and the like does not need to be maintained, and the working principle is simple.

The data processing system of the embodiment can participate in space flight tasks, and realizes mutual access and load and image IP request packet interconnection of services such as FTP (file transfer protocol) service, HTTP (hyper text transport protocol) service, e-mail service and remote desktop of a spacecraft and a ground system, for example, in a space station, a spacecraft can perform mail receiving and sending, and internet access services such as webpage access, video on demand, file transmission and the like with a handheld notebook and a ground network, so that transparent access of the spacecraft network service and the ground service is realized, and seamless butt joint with the existing international popular network technology, protocol and products is realized, and thus the task cost for building a space-ground integrated network system is remarkably reduced.

Example 2

According to an embodiment of the present invention, an embodiment of a data processing method is provided, and it should be noted that the data processing method of this embodiment may be executed by the data processing system of embodiment 1 of the present invention. The steps illustrated in the flow charts of the drawings may be performed in a computer system such as a set of computer-executable instructions and, although a logical order is illustrated in the flow charts, in some cases, the steps illustrated or described may be performed in an order different than here.

The data processing method of the embodiment can be applied to a protocol conversion server, and is described below from the protocol conversion server side.

Fig. 2 is a flow chart of a data processing method according to an embodiment of the present invention. As shown in fig. 2, the method may include the steps of:

step S202, downlink data sent by the spacecraft are received, the downlink data are analyzed by using a space-ground data communication protocol, and a first IP request packet is separated.

In the technical solution provided in step S202 of the present invention, the protocol conversion server may receive downlink data sent by the spacecraft, analyze and separate the downlink data according to a certain protocol format, and obtain the first IP request packet, for example, the protocol conversion server analyzes and separates the downlink data according to the IP Over CCSDS protocol in the MPDU/EPDU protocol format, and obtains the first IP request packet.

Step S204, packaging the first IP request packet to obtain an IP request packaging packet; and sending the IP request encapsulation packet to a proxy server, wherein the IP request encapsulation packet is reduced to a second IP request packet by the proxy server, the second IP request packet is sent to a service server, the second IP request packet is responded by the service server to generate an IP reply packet, and the IP reply packet is redirected to the proxy server by a switch.

After the protocol conversion server analyzes the downlink data by using the world data communication protocol and separates the first IP request packet, the protocol conversion server may encapsulate the first IP request packet to obtain an IP request encapsulation packet.

After the protocol conversion server packages the first IP request packet to obtain an IP request package packet, the protocol conversion server may send the IP request package packet to a proxy server operating in a network layer, where the IP request package packet may be further reduced by the proxy server to a second IP request packet, where the second IP request packet is a common IP request packet of a ground network, that is, the first IP request packet of the spacecraft client may be processed to be a common IP request packet of the ground network, and the common IP request packet is forwarded to the service server by the proxy server through an original socket, where the second IP request packet may be responded by the service server to generate an IP reply packet, and the IP reply packet, that is, the service reply packet and the IP reply packet, whose destination address may be a destination address of the spacecraft client, and the IP reply packet is redirected to the proxy server by the service server through the switch.

It should be noted that, since the destination address of the above IP reply packet of this embodiment is a spacecraft client, but the destination address of the IP reply packet does not exist in the ground network, the IP reply packet is usually discarded. In this embodiment, the IP reply packet may be redirected to the proxy server by the switch, so that the proxy server encapsulates the redirected IP reply packet to obtain an IP reply encapsulation packet.

And step S206, acquiring an IP reply encapsulating packet sent by the proxy server, and sending the IP reply encapsulating packet to the spacecraft through an uplink by using a world data communication protocol, wherein the IP reply encapsulating packet is obtained by encapsulating the redirected IP reply packet by the proxy server.

In the technical solution provided in step S206 of the present invention, the protocol conversion server may obtain an IP reply encapsulation packet obtained by encapsulating the redirected IP reply packet by the proxy server according to the internal interface, and send the IP reply encapsulation packet to the spacecraft through the uplink using the world data communication protocol to perform service reply, thereby completing a process of "request-reply" of the world IP data, shielding differences between the world link and the protocol, completing the world internet access, and achieving the purpose of world-earth integrated end-to-end communication.

The above method of this example is further illustrated below.

As an optional implementation manner, in step S202, parsing the downlink data and separating the first IP request packet by using the world data communication protocol includes: and resolving and separating the first IP request packet of the world communication downlink according to the world data communication protocol.

In this embodiment, the first IP request packet may be an IP request packet of a world communication downlink, so that the downlink data sent by the spacecraft may be analyzed and separated by using a world data communication protocol, thereby obtaining the first IP request packet.

As an optional implementation manner, step S204, sending the IP request encapsulation packet to the proxy server, includes: and sending the IP request encapsulation packet to the proxy server in a multicast mode or a request mode.

In this embodiment, when the protocol conversion server sends the IP request encapsulation packet to the proxy server, the protocol conversion server may send the IP request encapsulation packet to the proxy server according to an agreed format, and may send the IP request encapsulation packet to the proxy server in a multicast mode or an on-demand mode.

As an optional implementation manner, in step S206, obtaining the IP reply encapsulation packet sent by the proxy server includes: and using the original socket to obtain an IP reply encapsulation packet with the destination address of the spacecraft client.

In this embodiment, the protocol conversion server may obtain, by using the original socket, an IP reply encapsulation packet sent by the proxy server, where the IP reply encapsulation packet is obtained by encapsulating, by the proxy server, an IP reply packet screened from a plurality of IP reply packets, where a destination address of the screened IP reply packet is a spacecraft client, and thus the IP reply encapsulation packet also corresponds to the spacecraft client.

Through the steps S202 to S206, downlink data sent by the spacecraft are received, the downlink data are analyzed by using a space-ground data communication protocol, and a first IP request packet is separated; packaging the first IP request packet to obtain an IP request packaging packet; sending the IP request encapsulation packet to a proxy server, wherein the IP request encapsulation packet is reduced to a second IP request packet by the proxy server, the second IP request packet is sent to a service server, the second IP request packet is responded by the service server to generate an IP reply packet, and the IP reply packet is redirected to the proxy server by a switch; the IP reply encapsulation packet sent by the proxy server is obtained, and the IP reply encapsulation packet is sent to the spacecraft by an uplink by using a world data communication protocol, wherein the IP reply encapsulation packet is obtained by encapsulating the redirected IP reply packet by the proxy server, so that the process of 'request-reply' of the world IP data is completed, the IP request packet of the spacecraft client and the IP reply packet of the service server can be correctly addressed, the world-integrated end-to-end communication is achieved, the problem that the seamless connection between a ground communication network and a space communication network cannot be realized because the IP request packet and the IP reply packet of the service server cannot be correctly addressed is avoided, the technical problem that the seamless connection of the IP data is difficult to carry out between the ground communication network and the space communication network is solved, and the technical effect of carrying out the seamless connection of the IP data between the ground communication network and the space communication network is achieved.

The data processing method of this embodiment may also be executed by a proxy server, and is further described below from the proxy server side.

Fig. 3 is a flow chart of another data processing method according to an embodiment of the present invention. As shown in fig. 3, the method may include the steps of:

step S302, an IP request encapsulation packet sent by a protocol conversion server is obtained, wherein the IP request encapsulation packet is obtained by encapsulating a first IP request packet by the protocol conversion server, and the first IP request packet is obtained by analyzing and separating downlink data sent by a spacecraft by the protocol conversion server by using a space-ground data communication protocol.

In the technical solution provided in step S302 of the present invention, the proxy server may obtain an IP request encapsulation packet sent by the protocol conversion server, where the IP request encapsulation packet may be obtained by encapsulating, by the protocol conversion server, a first IP request packet, where the first IP request packet is obtained by analyzing and separating, by the protocol conversion server, downlink data sent by the spacecraft client, for example, by analyzing and separating, by the protocol conversion server, the downlink data sent by the spacecraft client in an MPDU/EPDU protocol format according to the IP Over CCSDS protocol.

Step S304, the IP request encapsulation packet is reduced to a second IP request packet.

In the technical solution provided in step S304 of the present invention, after the proxy server obtains the IP request encapsulation packet sent by the protocol conversion server, the proxy server may further reduce the obtained IP request encapsulation packet into a second IP request packet, where the second IP request packet is a common IP request packet of the ground network, that is, the first IP request packet of the spacecraft client is processed into a common IP request packet of the ground network.

Step S306, sending the second IP request packet to the service server through the original socket, where the second IP request packet is responded by the service server to generate an IP reply packet.

In the technical solution provided in step S306 of the present invention, after the proxy server restores the IP request encapsulation packet to the second IP request packet, the proxy server may send the second IP request packet to the service server. Optionally, the proxy server of this embodiment may send the second IP request packet to the service server through the original socket, where the second IP request packet is responded by the service server to generate an IP reply packet, and the destination address of the IP reply packet is the IP address of the spacecraft client.

Step S308, an IP reply packet sent by the service server and redirected by the switch is obtained, the redirected IP reply packet is encapsulated to obtain an IP reply encapsulation packet, and the IP reply encapsulation packet is sent to the protocol conversion server, wherein the IP reply encapsulation packet is sent to the spacecraft by the protocol conversion server through an uplink by using a world data communication protocol.

In the technical solution provided in step S308 of the present invention, after the proxy server sends the second IP request packet to the service server through the original socket, the service server may respond to the second IP request packet to generate an IP reply packet. Since the destination address of the IP reply packet of the service server is the spacecraft client, but the destination address of the IP reply packet does not exist in the ground network, the IP reply packet is usually discarded, and the IP reply packet of this embodiment may be redirected to the proxy server by the switch connected to the proxy server, so that the proxy server obtains the redirected IP reply packet.

After obtaining the redirected IP reply packet, the proxy server may encapsulate the redirected IP reply packet, for example, the proxy server may encapsulate the redirected IP reply packet according to an internal interface, or may perform CCSDS AOS frame framing, so as to obtain an IP reply encapsulation packet, and then the proxy server sends the IP reply encapsulation packet to the protocol conversion server. The IP reply encapsulation packet can be sent to the spacecraft by the protocol conversion server through the uplink by using a world data communication protocol, so that the process of 'request-reply' of world IP data is completed, the difference of the world link and the protocol is shielded, the world Internet access is completed, and the purpose of world-world integrated end-to-end communication is realized.

The above method of this example is further illustrated below.

As an alternative implementation, step S308, acquiring an IP reply packet sent by the service server and redirected by the switch, includes: and screening the IP reply packets with the destination addresses being the redirection of the spacecraft client side from the received multiple IP reply packets.

In this embodiment, the proxy server may receive a plurality of IP reply packets, where the plurality of IP reply packets may include a redirected IP reply packet with a destination address of the spacecraft client, and the proxy server may filter out the redirected IP reply packet with the destination address of the spacecraft client from the received plurality of IP reply packets.

As an alternative embodiment, multiple IP reply packets sent to the native machine are received through the original socket.

In this embodiment, the proxy server may receive all the numerous IP reply packets sent to the local computer, or the proxy server may receive all the IP reply packets sent to the local computer through the original socket, screen out an IP reply packet whose destination address is a redirection of the spacecraft client from all the numerous IP reply packets, further encapsulate the redirected IP reply packet, obtain an IP reply encapsulation packet, and send the IP reply encapsulation packet to the protocol conversion server.

Through the steps S302 to S308 of the invention, an IP request encapsulation packet sent by a protocol conversion server is obtained, wherein the IP request encapsulation packet is obtained by encapsulating a first IP request packet by the protocol conversion server, and the first IP request packet is obtained by analyzing and separating downlink data sent by a spacecraft by the protocol conversion server by using a space-ground data communication protocol; the IP request encapsulation packet is restored into a second IP request packet; sending a second IP request packet to the service server through the original socket, wherein the second IP request packet is responded by the service server to generate an IP reply packet; and acquiring an IP reply packet sent by the service server and redirected by the switch, packaging the redirected IP reply packet to obtain an IP reply packaging packet, and sending the IP reply packaging packet to the protocol conversion server, wherein the IP reply packaging packet is sent to the spacecraft by the protocol conversion server through an uplink by using a world data communication protocol. The proxy server works on a network layer, only IP data is concerned, technical details of an application layer HTTP/SMTP/FTP protocol do not need to be concerned, interaction such as connection establishment of a TCP protocol and a session layer handshake which are complex in a transmission layer is not needed, the working principle is simple, the IP request packet of the spacecraft client and the IP reply packet of the service server can be correctly addressed, the heaven-earth integrated end-to-end communication is achieved, the problem that the seamless connection between the ground communication network and the space communication network cannot be achieved due to the fact that the IP request packet of the spacecraft client and the IP reply packet of the service server cannot be correctly addressed is solved, and the technical problem that the seamless connection of the IP data is difficult to achieve between the ground communication network and the space communication network is achieved.

The data processing method of this embodiment can be applied to a switch, and is described below from the switch side.

Fig. 4 is a flow chart of another data processing method according to an embodiment of the present invention. As shown in fig. 4, the method may include the steps of:

step S402, an IP reply packet sent by the service server is obtained, wherein the IP reply packet is obtained by the service server responding to a second IP request packet, the second IP request packet is obtained by the proxy server restoring the IP request encapsulation packet, and the proxy server sends the IP reply packet to the service server through an original socket.

In the technical scheme provided by step S402 of the present invention, the IP request encapsulation packet is obtained by encapsulating the first IP request packet by the protocol conversion server, and the first IP request packet is obtained by analyzing and separating the downlink data sent by the spacecraft by the protocol conversion server using the space-ground data communication protocol.

Since the destination address of the IP reply packet of this embodiment may be a spacecraft client, but the destination address of the IP reply packet does not exist in the ground network, the IP reply packet is typically discarded. In this embodiment, the switch retrieves the IP reply packet to redirect to the proxy server.

Step S404, redirecting the IP reply packet to a proxy server, wherein the redirected IP reply packet is encapsulated by the proxy server to obtain an IP reply encapsulation packet, the IP reply encapsulation packet is sent to a protocol conversion server by the proxy server, and the IP reply encapsulation packet is sent to the spacecraft by the protocol conversion server through an uplink by using a world data communication protocol.

In the technical solution provided in step S404 of the present invention, after the switch acquires the IP reply packet sent by the service server, the switch may redirect the IP reply packet to the proxy server, and optionally, the embodiment is set in advance on the router, so that the switch may redirect the IP reply packet of the client with the destination address of the spacecraft to the proxy server, and the redirected IP reply packet may be encapsulated by the proxy server and send the encapsulated IP reply packet to the protocol conversion server, so that the protocol conversion server sends the encapsulated IP reply packet to the spacecraft through the uplink to reply to the service.

The above method of this embodiment is further described below.

As an alternative embodiment, step S404, redirecting the IP reply packet to the proxy server includes: and in the case that the destination address of the IP reply packet is the spacecraft client, redirecting the IP reply packet to the proxy server.

In this embodiment, the switch may determine whether the destination address of the IP reply packet is a spacecraft client, and may directly redirect the IP reply packet to the proxy server if the destination address of the IP reply packet is determined to be the spacecraft client.

Through the steps from S402 to S404, an IP reply packet sent by a service server is obtained, wherein the IP reply packet is obtained by the service server responding to a second IP request packet, the second IP request packet is obtained by the proxy server restoring an IP request encapsulation packet, the proxy server sends the IP request encapsulation packet to the service server through an original socket, the IP request encapsulation packet is obtained by the protocol conversion server encapsulating a first IP request packet, and the first IP request packet is obtained by the protocol conversion server analyzing and separating downlink data sent by a spacecraft by using a world data communication protocol; the IP reply packet is redirected to the proxy server, wherein the redirected IP reply packet is encapsulated by the proxy server to obtain an IP reply encapsulation packet, the IP reply encapsulation packet is sent to the protocol conversion server by the proxy server, and the protocol conversion server uses a world data communication protocol and sends the IP reply encapsulation packet to the spacecraft through an uplink, so that the process of requesting and replying the world IP data is completed, the IP request packet of the spacecraft client and the IP reply packet of the service server can be correctly addressed, the world-ground integrated end-to-end communication is achieved, the problem that the seamless connection between the ground communication network and the space communication network cannot be realized because the IP request packet of the spacecraft client and the IP reply packet of the service server cannot be correctly addressed is avoided, the technical problem that the seamless connection of the IP data is difficult to carry out between the ground communication network and the space communication network is solved, and the technical effect of carrying out the seamless connection of the IP data between the ground communication network and the space communication network is achieved.

The data processing method of the embodiment can realize transparent access and interoperation between the spacecraft network and the ground network, and can shield differences of world links and protocols through key technologies such as proxy service, response packet redirection, IP request packet analysis, destination address identification, addressing, service data sending and the like, thereby realizing world-to-earth integrated end-to-end communication; the coupling degree with the traditional measurement and control service is small, so that the remote measurement and control service is not influenced; the system can realize seamless butt joint with the existing ground network technology, protocol and product, thereby effectively reducing the space task cost; the proxy service works in a network layer, only an IP request packet needs to be concerned, technical details of an application layer HTTP/SMTP/FTP protocol do not need to be concerned, interaction such as maintaining a complex TCP protocol of a transmission layer, handshake connection establishment and the like is not needed, and the working principle is simple.

Example 3

The technical solutions of the embodiments of the present invention will be illustrated below with reference to preferred embodiments.

Because the Internet Protocol (IP) data day-ground interconnection access is different from the common Internet access, a request IP packet of a client and a reply IP packet of a service server are both packaged in a PDXP/CCSDS AOS frame, and if the request IP packet and the reply IP packet are not specially processed, the request packet and the reply IP packet can not be correctly addressed. The problem to be solved by this embodiment to achieve seamless connection between the terrestrial communication network and the spatial communication network includes the following aspects:

(1) Analyzing the IP Over CCSDS protocol encapsulated data, and extracting an IP data packet;

(2) The problem that a client request packet and a service server reply packet are correctly addressed is solved;

(3) The system can be seamlessly butted with the existing ground network technology, protocol and products, so that the heaven-earth integrated end-to-end communication is realized, and the space task cost is effectively reduced.

(4) The coupling degree of the processing of the world internet access IP data and the ground measurement and control service is as small as possible, and the key service of the remote measurement and control of the spacecraft cannot be influenced.

In view of the above four aspects, the embodiment provides a data processing method, which may include at least the following three aspects:

(1) The protocol conversion server analyzes and separates the CCSDS AOS frame on one hand according to the IP Over CCSDS protocol to obtain an IP request packet sent to the ground service server by the spacecraft client and sends the IP request packet to the proxy service according to an agreed format; on the other hand, the ground service server packaged by the receiving proxy server sends an IP reply packet to the spacecraft client, and carries out CCSDS AOS frame framing on the IP reply packet.

(2) The proxy server needs to restore the IP request packet on one hand and forwards the restored IP request packet to the service server through the original socket; and on the other hand, all IP packets sent to the local computer are received through the original socket, and IP reply packets with the destination address being the address of the astronaut notebook computer are screened from the IP reply packets, encapsulated and sent to the protocol conversion server.

(3) And the switch is used for redirecting the IP reply packet with the destination address as the spacecraft client to the proxy server.

The embodiment completes the process of request-reply of the world IP data by the method, shields the difference of world links and protocols, and realizes the world integrated end-to-end communication; the coupling degree with the traditional measurement and control service is small, and the remote measurement and control service is not influenced; the system can be seamlessly butted with the existing ground network technology, protocol and products, so that the space task cost is effectively reduced; the proxy service works in a network layer, only IP data is concerned, technical details of an HTTP/SMTP/FTP protocol of an application layer do not need to be concerned, interaction such as maintaining a complex TCP protocol of a transmission layer and handshake connection establishment of a session layer is not needed, and the working principle is simple.

The above method of this embodiment is further described below by taking a process of browsing a webpage of an astronaut as an example.

FIG. 5 is an interaction diagram of a processing method of a data processing system according to an embodiment of the present invention. As shown in fig. 5, the method may include the steps of:

step S501, the protocol conversion server receives spacecraft downlink data, frames according to an IP Over CCSDS protocol and analyzes MPDUs/EPDUs to obtain a first IP request packet.

The downlink data of this embodiment may be CCSDS frame reverse computer IP data, which corresponds to a service request of the astronaut notebook.

Fig. 6 is a diagram illustrating an IPE header and IP pdu and IP data format carried by a CCSDS encapsulation packet according to an embodiment of the present invention. As shown in fig. 6, the MPDU includes an M _ PDU header, M _ PDU Bao Yu, wherein the M _ PDU packet field may include the end of the kth packet, the (k + 1) th packet … … mth packet, and the start of the (M + 1) th packet; the EPDU may comprise a CCSDS encapsulation packet header, a CCSDS IPE header and an IP protocol data unit; the IP data comprises a header and a data portion, wherein the header comprises a source address and a destination address.

Step S502, the protocol conversion server packages the IP request packet to obtain an IP request package packet, and sends the IP request package packet to the proxy server in a multicast or on-demand mode.

Step S503, the proxy server receives the IP request encapsulation packet sent by the protocol conversion server, restores the IP request encapsulation packet to a second IP request packet, and forwards the second IP request packet to the service server through the original socket.

Step S504, the service server responds to the second IP request packet after receiving it, and generates an IP reply packet, where a destination address of the IP reply packet is an astronaut notebook IP address.

And step S505, presetting on the router, and redirecting the IP reply packet with the destination address being the address of the notebook computer of the astronaut to the proxy server.

Step S506, the proxy server receives all IP reply packets sent to the local machine through the original socket, screens out the redirected IP reply packets with the destination address being the address of the astronaut notebook computer, packages the redirected IP reply packets and sends the redirected IP reply packets to the protocol conversion server.

In this embodiment, through the six steps of step S501 to step S506, differences between the world link and the protocol are shielded, world internet access is completed, and world-wide integrated end-to-end communication is realized.

The data processing system of the embodiment designs a ground software and hardware processing architecture for interconnection and intercommunication between the world IP networks, constructs a brand new information interaction platform for the astronaut and the spacecraft to access the ground network, realizes transparent access and interoperation between the spacecraft network and the ground network, and can shield the difference of world links and protocols through key technologies such as proxy service, response packet redirection, IP request packet analysis, destination address identification, addressing, service data transmission and the like, thereby realizing world-ground integrated end-to-end communication; the coupling degree with the traditional measurement and control service is small, so that the telemetering and remote control service is not influenced; the system can realize seamless butt joint with the existing ground network technology, protocol and product, thereby effectively reducing the space task cost; the proxy service works in a network layer, only an IP request packet needs to be concerned, technical details of an application layer HTTP/SMTP/FTP protocol do not need to be concerned, interaction such as maintaining a complex TCP protocol of a transmission layer, handshake connection establishment and the like is not needed, and the working principle is simple.

Example 4

The embodiment of the invention also provides a data processing device which is arranged in the protocol conversion server. It should be noted that the data processing apparatus of this embodiment may be used to execute the data processing method shown in fig. 2 of the embodiment of the present invention.

Fig. 7 is a schematic diagram of a data processing apparatus according to an embodiment of the present invention. As shown in fig. 7, the data processing apparatus 70 may include: a receiving unit 71, a packing unit 72 and a first acquisition unit 73.

The receiving unit 71 is configured to receive downlink data sent by the spacecraft, analyze the downlink data using a space-ground data communication protocol, and separate a first IP request packet;

an encapsulating unit 72, configured to encapsulate the first IP request packet to obtain an IP request encapsulation packet; sending the IP request encapsulation packet to a proxy server, wherein the IP request encapsulation packet is reduced to a second IP request packet by the proxy server, the second IP request packet is sent to a service server, the second IP request packet is responded by the service server to generate an IP reply packet, and the IP reply packet is redirected to the proxy server by a switch;

a first obtaining unit 73, configured to obtain an IP reply encapsulation packet sent by the proxy server, and send the IP reply encapsulation packet to the spacecraft through the uplink using the space-ground data communication protocol, where the IP reply encapsulation packet is obtained by encapsulating the redirected IP reply packet by the proxy server.

The embodiment of the invention also provides another data processing device which is arranged in the proxy server. It should be noted that the data processing apparatus of this embodiment may be used to execute the data processing method shown in fig. 3 according to the embodiment of the present invention.

FIG. 8 is a schematic diagram of another data processing apparatus according to an embodiment of the present invention. As shown in fig. 8, the data processing apparatus 80 may include: a second acquiring unit 81, a restoring unit 82, a transmitting unit 83, and a third acquiring unit 84.

The second obtaining unit 81 is configured to obtain an IP request encapsulation packet sent by the protocol conversion server, where the IP request encapsulation packet is obtained by encapsulating, by the protocol conversion server, the first IP request packet, and the first IP request packet is obtained by analyzing and separating downlink data sent by the spacecraft by the protocol conversion server using a space-ground data communication protocol.

And a restoring unit 82, configured to restore the IP request encapsulation packet to a second IP request packet.

A sending unit 83, configured to send the second IP request packet to the service server through the original socket, where the second IP request packet is responded by the service server to generate an IP reply packet.

A third obtaining unit 84, configured to obtain an IP reply packet sent by the service server and redirected by the switch, encapsulate the redirected IP reply packet to obtain an IP reply encapsulation packet, and send the IP reply encapsulation packet to the protocol conversion server, where the IP reply encapsulation packet is sent to the spacecraft by the protocol conversion server through an uplink using a world data communication protocol.

The embodiment of the invention also provides another data processing device which is arranged in the switch. It should be noted that the data processing apparatus of this embodiment may be used to execute the data processing method shown in fig. 4 of the embodiment of the present invention.

FIG. 9 is a schematic diagram of another data processing apparatus according to an embodiment of the present invention. As shown in fig. 9, the data processing apparatus 90 may include: a fourth acquisition unit 91 and a redirection unit 92.

A fourth obtaining unit 91, configured to obtain an IP reply packet sent by the service server, where the IP reply packet is obtained by the service server in response to the second IP request packet, the second IP request packet is obtained by the proxy server in response to the IP request encapsulation packet, and the proxy server sends the IP request encapsulation packet to the service server through the original socket, the IP request encapsulation packet is obtained by the protocol conversion server by encapsulating the first IP request packet, and the first IP request packet is obtained by the protocol conversion server by analyzing and separating downlink data sent by the spacecraft using a world data communication protocol.

And a redirecting unit 92, configured to redirect the IP reply packet to the proxy server, where the redirected IP reply packet is encapsulated by the proxy server to obtain an IP reply encapsulation packet, and the IP reply encapsulation packet is sent to the protocol conversion server by the proxy server, and is sent to the spacecraft by the protocol conversion server through the uplink by using a world data communication protocol.

The data processing device of the embodiment can complete the process of request-reply of the world IP data, realize that the IP request packet of the spacecraft client and the IP reply packet of the service server can be correctly addressed, and achieve the end-to-end communication of world integration, thereby solving the technical problem that the seamless connection of the IP data is difficult to carry out in the ground communication network and the space communication network, and achieving the technical effect of carrying out the seamless connection of the IP data in the ground communication network and the space communication network.

Example 5

The embodiment of the invention also provides a storage medium. The storage medium includes a stored program, wherein the apparatus in which the storage medium is located is controlled to execute the data processing method of the embodiment of the present invention when the program runs.

Example 6

The embodiment of the invention also provides a processor. The processor is used for running a program, wherein the program executes the data processing method of the embodiment of the invention when running.

The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.

In the above embodiments of the present invention, the description of each embodiment has its own emphasis, and reference may be made to the related description of other embodiments for parts that are not described in detail in a certain embodiment.

In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A data processing method, comprising:

receiving downlink data sent by a spacecraft, analyzing the downlink data by using a space-ground data communication protocol and separating a first IP request packet;

packaging the first IP request packet to obtain an IP request packaging packet; sending the IP request encapsulation packet to a proxy server, wherein the proxy server is used for receiving the IP request encapsulation packet, restoring the IP request encapsulation packet to obtain a common IP request packet of a ground network, determining a second IP request packet based on the common IP request packet, and sending the second IP request packet to a service server, the second IP request packet is responded by the service server to generate an IP reply packet, and the IP reply packet is redirected to the proxy server by a switch;

and acquiring an IP reply encapsulation packet sent by the proxy server, and sending the IP reply encapsulation packet to the spacecraft through an uplink by using the space-ground data communication protocol, wherein the IP reply encapsulation packet is obtained by encapsulating the redirected IP reply packet by the proxy server.

2. The method of claim 1, wherein parsing the downlink data and separating the first IP request packet using the space-ground data communication protocol comprises:

and analyzing and separating the first IP request packet of the world communication downlink according to the world data communication protocol.

3. The method of claim 1, wherein sending the IP request encapsulation packet to the proxy server comprises:

and sending the IP request encapsulation packet to the proxy server in a multicast mode or a demand mode.

4. The method of claim 1, wherein obtaining the IP reply encapsulation packet sent by the proxy server comprises:

and using the original socket to obtain the IP reply encapsulation packet with the destination address of the spacecraft client.

5. The method according to any one of claims 1 to 4, wherein the data processing method is performed by a protocol conversion server.

6. A data processing method, comprising:

acquiring an IP request encapsulation packet sent by a protocol conversion server, wherein the IP request encapsulation packet is obtained by encapsulating a first IP request packet by the protocol conversion server, and the first IP request packet is obtained by analyzing and separating downlink data sent by a spacecraft by the protocol conversion server by using a space-ground data communication protocol;

restoring the IP request encapsulation packet to obtain a common IP request packet of a ground network, and determining a second IP request packet based on the common IP request packet;

sending the second IP request packet to a service server through an original socket, wherein the second IP request packet is responded by the service server to generate an IP reply packet;

and acquiring the IP reply packet sent by the service server and redirected by the switch, encapsulating the redirected IP reply packet to obtain an IP reply encapsulating packet, and sending the IP reply encapsulating packet to the protocol conversion server, wherein the IP reply encapsulating packet is sent to the spacecraft by the protocol conversion server through an uplink by using the world data communication protocol.

7. The method of claim 6, wherein obtaining the IP reply packet sent by the traffic server and redirected by the switch comprises:

and screening out the IP reply packets with the destination addresses being the redirection of the spacecraft client from the received multiple IP reply packets.

8. The method of claim 7, further comprising:

receiving the plurality of IP reply packets sent to the native machine through the original socket.

9. The method according to any one of claims 6 to 8, wherein the data processing method is performed by a proxy server.

10. A data processing method, comprising:

acquiring an IP reply packet sent by a service server, wherein the IP reply packet is obtained by the service server responding to a second IP request packet, the second IP request packet is obtained by a proxy server receiving the IP request encapsulation packet, the IP request encapsulation packet is subjected to reduction processing to obtain a common IP request packet of a ground network, the common IP request packet is sent to the service server by the proxy server through an original socket, the IP request encapsulation packet is obtained by a protocol conversion server encapsulating a first IP request packet, and the first IP request packet is obtained by the protocol conversion server analyzing and separating downlink data sent by a spacecraft by using a space-ground data communication protocol;

and redirecting the IP reply packet to the proxy server, wherein the redirected IP reply packet is encapsulated by the proxy server to obtain an IP reply encapsulation packet, the IP reply encapsulation packet is sent to the protocol conversion server by the proxy server, and the IP reply encapsulation packet is sent to the spacecraft by the protocol conversion server through an uplink by using the space-ground data communication protocol.

11. The method of claim 10, wherein redirecting the IP reply packet to the proxy server comprises:

and in the case that the destination address of the IP reply packet is a spacecraft client, redirecting the IP reply packet to the proxy server.

12. The method according to claim 10 or 11, wherein the data processing method is performed by a switch.

13. A data processing system, comprising:

the protocol conversion server is used for receiving downlink data sent by the spacecraft, analyzing the downlink data by using a space-ground data communication protocol, separating a first IP request packet, and encapsulating the first IP request packet to obtain an IP request encapsulation packet;

the proxy server is connected with the protocol conversion server and used for receiving the IP request encapsulation packet sent by the protocol conversion server, restoring the IP request encapsulation packet to obtain a common IP request packet of a ground network, and determining a second IP request packet based on the common IP request packet;

the service server is connected with the proxy server and used for responding to the second IP request packet and generating an IP reply packet;

the exchanger is connected between the service server and the proxy server and used for redirecting the IP reply packet sent by the service server to the proxy server;

the proxy server is configured to encapsulate the IP reply packet to obtain an IP reply encapsulation packet, and send the IP reply encapsulation packet to the protocol conversion server, where the protocol conversion server sends the IP reply encapsulation packet to the spacecraft through an uplink using the space-ground data communication protocol.

14. The system of claim 13,

and the proxy server is used for sending the second IP request packet to a service server through an original socket.

15. The system of claim 13,

the switch is used for redirecting the IP reply packet to the proxy server under the condition that the destination address of the IP reply packet is a spacecraft client.

16. A data processing apparatus, provided in a protocol translation server, comprising:

the receiving unit is used for receiving the downlink data sent by the spacecraft, analyzing the downlink data by using a space-ground data communication protocol and separating a first IP request packet;

the encapsulation unit is used for encapsulating the first IP request packet to obtain an IP request encapsulation packet; sending the IP request encapsulation packet to a proxy server, wherein the proxy server is used for receiving the IP request encapsulation packet, restoring the IP request encapsulation packet to obtain a common IP request packet of a ground network, determining a second IP request packet based on the common IP request packet, and sending the second IP request packet to a service server, the second IP request packet is responded by the service server to generate an IP reply packet, and the IP reply packet is redirected to the proxy server by a switch;

a first obtaining unit, configured to obtain an IP reply encapsulation packet sent by the proxy server, and send the IP reply encapsulation packet to the spacecraft through an uplink using the space-ground data communication protocol, where the IP reply encapsulation packet is obtained by encapsulating, by the proxy server, a redirected IP reply packet.

17. A data processing apparatus provided in a proxy server, comprising:

the second acquiring unit is used for acquiring an IP request encapsulation packet sent by a protocol conversion server, wherein the IP request encapsulation packet is obtained by encapsulating a first IP request packet by the protocol conversion server, and the first IP request packet is obtained by analyzing and separating downlink data sent by a spacecraft by the protocol conversion server by using a space-ground data communication protocol;

a restoring unit, configured to restore the IP request encapsulation packet to obtain a common IP request packet of a ground network, and determine a second IP request packet based on the common IP request packet;

a sending unit, configured to send the second IP request packet to a service server through an original socket, where the second IP request packet is responded by the service server to generate an IP reply packet;

and a third obtaining unit, configured to obtain the IP reply packet sent by the service server and redirected by the switch, encapsulate the redirected IP reply packet to obtain an IP reply encapsulation packet, and send the IP reply encapsulation packet to the protocol conversion server, where the IP reply encapsulation packet is sent to the spacecraft through an uplink by the protocol conversion server using the space-ground data communication protocol.

18. A data processing apparatus, provided in a switch, comprising:

a fourth obtaining unit, configured to obtain an IP reply packet sent by a service server, where the IP reply packet is obtained by the service server in response to a second IP request packet, the second IP request packet is sent to the service server by a proxy server through an original socket, the proxy server receives the IP request encapsulation packet, and the IP request encapsulation packet is restored to obtain a common IP request packet of a ground network, the IP request encapsulation packet is obtained by a protocol conversion server by encapsulating a first IP request packet, and the first IP request packet is obtained by the protocol conversion server by analyzing and separating downlink data sent by a spacecraft by using a world data communication protocol;

and the redirection unit is used for redirecting the IP reply packet to the proxy server, wherein the redirected IP reply packet is encapsulated by the proxy server to obtain an IP reply encapsulation packet, the IP reply encapsulation packet is sent to the protocol conversion server by the proxy server, and the IP reply encapsulation packet is sent to the spacecraft by the protocol conversion server through an uplink by using the space-ground data communication protocol.

19. A storage medium, characterized in that the storage medium comprises a stored program, wherein when the program runs, a device in which the storage medium is located is controlled to execute the data processing method according to any one of claims 1 to 12.

20. A processor, characterized in that the processor is configured to run a program, wherein the program when running performs the data processing method of any one of claims 1 to 12.