CN115549771B

CN115549771B - Method, device and storage medium for scheduling virtual channel based on segment layer

Info

Publication number: CN115549771B
Application number: CN202211523192.5A
Authority: CN
Inventors: 王佳增; 韩雍博; 戚少博
Original assignee: Galaxyspace Beijing Communication Technology Co ltd
Current assignee: Galaxyspace Beijing Communication Technology Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-03-24
Anticipated expiration: 2042-12-01
Also published as: CN115549771A

Abstract

The application discloses a method, a device and a storage medium for scheduling virtual channels based on a segmentation layer, which comprises the following steps: receiving remote control application data corresponding to an application process deployed in a spacecraft through a packaging layer of a sub-packaging remote control system, and generating remote control packages respectively corresponding to the application process; receiving a remote control packet and generating a remote control segment corresponding to the application process; determining scheduling configuration information related to the application process according to the priority relation corresponding to the application process; transmitting the remote control segment containing different receiving address pointers to a transmission layer; creating a virtual channel, and determining the channel number of the virtual channel corresponding to the application process according to the scheduling configuration information; and allocating a virtual channel corresponding to the application process according to the determined number of channels. Therefore, the technical effect that the priority mechanism in the segmentation layer can be fully utilized to generate the scheduling mechanism based on the priority, the scheduling mechanism based on the priority is not required to be additionally introduced into the transmission layer, and the cost is further reduced is achieved.

Description

Method, device and storage medium for scheduling virtual channel based on segment layer

Technical Field

The present application relates to the field of aerospace remote control technologies, and in particular, to a method, an apparatus, and a storage medium for scheduling a virtual channel based on a segment layer.

Background

The invention discloses CN110429967A, which is named as a channel gateway of a packet remote control and telemetry system, comprising: the uplink remote control data input interface is used for decoding information processing by the spread spectrum signal through a CCSDS data format and transmitting the decoded information to an instruction user or a CPU; and a downlink telemetering data output interface, a CPU whole satellite telemetering code and a spread spectrum transponder are sent to the ground. The channel gateway of the sub-packet remote control and remote measurement system provided by the invention adopts BCH coding, can adapt to the sub-packet remote control and remote measurement and control system, is used as a new generation satellite remote control platform, and is the function upgrade of the traditional remote control product.

The publication number is CN113507311A, which is named as an invention of a control display device for satellite terrestrial application system channel equipment, and the invention comprises a control processing board, a display screen, a control keyboard and processing software: controlling the processing board to remotely control or locally control the equipment, and monitoring the temperature and the working state of the equipment; the display screen displays equipment states, including parameters of channel equipment, internal temperature, power supply voltage, remote control or local control states and fault alarm information; the control keyboard provides an interface of the control input equipment; the processing software is installed on the control processing board, remotely controls or locally controls the equipment and monitors the temperature and the state; the universal device is provided for the satellite ground application system channel equipment, the hardware variety is simplified, the equipment cost is reduced, and the operation applicability of the control display device is improved.

The subpackage remote control technology is widely applied to data transmission between a satellite ground system and spacecrafts such as satellites. Through packet remote control, the satellite ground system can transmit remote control application data to the spacecraft, so that the application data on the spacecraft can be updated. FIG. 1A shows a hierarchical structure of a packet remote control system. Referring to fig. 1A, the hierarchical structure of the packet remote control system includes a wrapper layer, a segment layer, a transport layer, a channel coding layer, and a physical layer. In the satellite ground system (i.e. the transmitting end), the remote control application data forms a remote control packet (i.e. a remote control user data unit) after a packet header is added to a packaging layer. After the remote control packet is segmented or assembled in a segmentation layer, a segment header is added to form a remote control segment (or a remote control transmission frame data unit). At the transmission layer, the remote transmitting frame data unit is put into the data field of the remote transmitting frame, the front of which is provided with a frame head, and the back of which is optionally provided with an error control code as a frame tail. At the channel coding layer, a remote control transport frame is block coded into a series of code blocks of fixed length, which have error correction and detection capabilities. And, the block code sequence is repackaged into a remote control channel transmission unit, each unit may contain one or more remote control transmission frames. Finally, in the physical layer, the remote control channel transmission units modulate the physical channels and transmit the physical channels to the spacecraft. And the spacecraft (i.e. the receiving end) completes the reverse process of the operation. Further, fig. 1B shows a schematic diagram of a packetized remote control data structure of each layer process. And after receiving the remote control transmission frame, the spacecraft transmits a remote control channel control word (namely feedback information) corresponding to the remote control transmission frame to the satellite ground system in a packet telemetry mode.

The main functions of the segmented layer are: grouping the incoming remote control packets (or remote control user data units) into remote control segments includes dividing a long remote control packet (or remote control user data unit) into several shorter remote control segments. The segment head of the remote control segment comprises a receiving address pointer corresponding to the application process of the spacecraft.

The prior art proposes that the transport layer can divide the physical channel into 64 virtual channels, each of which can then be divided into 64 receiving address pointers, so that the physical channel can be divided into 4096 transmission paths from the source to the application.

In practical applications, however, the number of application processes deployed on a spacecraft is typically less than 64, and therefore the transmission path required to transmit remote control application data is also less than 64. That is, it is sufficient to transmit remote control application data using 64 virtual channels, and it is not necessary to divide the virtual channels using the reception address pointers.

Although in the case of large remote control application data, it is still necessary to segment the remote control packet using the segmentation layer. However, since it is sufficient to transmit the remote control application data using 64 virtual channels, the receiving address pointer of the remote control segment is not used, but a constant value is set at the segment head of the remote control segment.

However, in the actual application process, the source-to-application transmission process still needs to be scheduled. In the prior art, a scheduling mechanism based on priority can be set at the transmission layer, for example, so as to schedule the remote control transmission frame. However, since the original transport layer does not have the scheduling mechanism based on the priority, the method of setting the scheduling mechanism based on the priority in the transport layer may increase the cost.

Aiming at the technical problem that the cost is increased because a priority mechanism in a segmentation layer cannot be fully utilized to generate a scheduling mechanism based on priority and the scheduling mechanism based on priority needs to be additionally introduced into a transmission layer in the prior art, an effective solution is not provided at present.

Disclosure of Invention

Embodiments of the present disclosure provide a method, an apparatus, and a storage medium for scheduling a virtual channel based on a segment layer, so as to at least solve the technical problem that in the prior art, a priority mechanism in the segment layer cannot be fully utilized to generate a priority-based scheduling mechanism, and a priority-based scheduling mechanism needs to be additionally introduced to a transport layer, thereby increasing the cost.

According to an aspect of the embodiments of the present disclosure, there is provided a method for scheduling a virtual channel based on a segment layer, for a satellite terrestrial system, including: receiving remote control application data corresponding to an application process deployed in a spacecraft through a packaging layer of a sub-packaging remote control system, and generating remote control packages corresponding to the application process respectively; the segmentation layer receives the remote control packet and generates a remote control segment corresponding to the application process, wherein the remote control segment comprises a receiving address pointer corresponding to the application process; the segmentation layer determines scheduling configuration information related to the application process according to the received address pointer, wherein the scheduling configuration information is used for indicating a scheduling proportion of remote control application data corresponding to the application process; the segmentation layer transmits the remote control segments containing different receiving address pointers to the transmission layer; the transmission layer establishes a virtual channel, and determines the channel number of the virtual channel corresponding to the application process according to the scheduling configuration information; and the transport layer allocates virtual channels corresponding to the application process according to the determined number of channels.

According to another aspect of the embodiments of the present disclosure, there is also provided a storage medium including a stored program, wherein the method of any one of the above is performed by a processor when the program is executed.

According to another aspect of the embodiments of the present disclosure, there is also provided an apparatus for scheduling a virtual channel based on a segment layer, for a satellite terrestrial system, including: the remote control package generation module is used for receiving remote control application data corresponding to an application process deployed on the spacecraft and generating remote control packages respectively corresponding to the application process; the remote control segment generating module is used for receiving the remote control packet and generating a remote control segment corresponding to the application process, wherein the remote control segment comprises a receiving address pointer corresponding to the application process; the scheduling configuration information determining module is used for determining scheduling configuration information related to the application process according to the received address pointer, wherein the scheduling configuration information is used for indicating the scheduling proportion of the remote control application data corresponding to the application process; the remote control segment transmission module is used for transmitting the remote control segments containing different receiving address pointers to the transmission layer; the channel number determining module is used for creating a virtual channel and determining the channel number of the virtual channel corresponding to the application process according to the scheduling configuration information; and a virtual channel allocation module for allocating virtual channels corresponding to the application process according to the determined number of channels.

According to another aspect of the embodiments of the present disclosure, there is also provided an apparatus for scheduling a virtual channel based on a segment layer, for a satellite terrestrial system, including: a processor; and a memory coupled to the processor for providing instructions to the processor for processing the following processing steps: receiving remote control application data corresponding to an application process deployed in a spacecraft through a packaging layer of a sub-packaging remote control system, and generating remote control packages respectively corresponding to the application process; the segmentation layer receives the remote control packet and generates a remote control segment corresponding to the application process, wherein the remote control segment comprises a receiving address pointer corresponding to the application process; the segmentation layer determines scheduling configuration information related to the application process according to the received address pointer, wherein the scheduling configuration information is used for indicating a scheduling proportion of remote control application data corresponding to the application process; the segmentation layer transmits the remote control segments containing different receiving address pointers to the transmission layer; the transmission layer creates virtual channels, and determines the channel number of the virtual channels corresponding to the application process according to the scheduling configuration information; and the transport layer allocates virtual channels corresponding to the application process according to the determined number of channels.

According to the technical scheme of the embodiment, firstly, after a packaging layer of the subpackage remote control system receives remote control application data which are sent by a plurality of information sources and correspond to application processes, remote control packages which respectively correspond to the application processes are generated. Then, the segmentation layer receives the remote control packet and generates a remote control segment corresponding to the application process according to the remote control packet. Wherein the remote control segment contains a receive address pointer corresponding to the application process. Further, the segmentation layer determines scheduling configuration information related to the application process, and transmits the remote control segment to the transmission layer according to a scheduling proportional relation indicated by the scheduling configuration information. In addition, the transmission layer creates a plurality of virtual channels, and determines the channel number of the virtual channel corresponding to the application process according to the scheduling proportion relation indicated by the scheduling configuration information. And finally, the transmission layer allocates virtual channels corresponding to the application process according to the determined number of the channels, and transmits the remote control transmission frame to the spacecraft through the virtual channels. The transmission layer can determine the channel number of the virtual channel corresponding to the application process according to the scheduling proportional relation indicated by the scheduling configuration information, and the scheduling configuration information is determined based on the priority mechanism in the segmentation layer, so that the transmission layer can schedule the remote control transmission frame without introducing an additional scheduling configuration mechanism based on the priority. Therefore, the technical effect that the priority mechanism in the segmentation layer can be fully utilized to generate the scheduling mechanism based on the priority without additionally introducing the scheduling mechanism based on the priority into the transmission layer is achieved through the operation, and the cost is further reduced. The method further solves the technical problem that in the prior art, the priority mechanism in the segmentation layer cannot be fully utilized to generate the scheduling mechanism based on the priority, and the scheduling mechanism based on the priority needs to be additionally introduced into the transmission layer, so that the cost is increased.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:

FIG. 1A is a schematic diagram of a hierarchy of a packetized remote control system according to existing standards;

fig. 1B is a schematic diagram of a packetized remote control data structure processed by each layer of a packetized remote control system according to the existing standard;

FIG. 2 is a block diagram of a hardware structure of a computing device for implementing the method according to embodiment 1 of the present disclosure;

FIG. 3 is a schematic diagram of a satellite remote control system according to the prior art;

fig. 4 is a schematic system architecture diagram of a packet remote control system according to the first aspect of embodiment 1 of the present disclosure;

fig. 5 is a schematic architecture diagram of a segment layer in a packetized remote control system according to a first aspect of embodiment 1 of the present disclosure;

FIG. 6 is a schematic diagram of a plurality of remote control segment queues corresponding to received address pointers in a segmentation layer according to a first aspect of embodiment 1 of the present disclosure;

fig. 7 is a flowchart illustrating a method for scheduling virtual channels based on a segment layer according to a first aspect of embodiment 1 of the present disclosure;

fig. 8 is a schematic diagram of a segmentation layer proportionally transmitting remote control segments to a transport layer according to a first aspect of embodiment 1 of the present disclosure;

fig. 9A is a schematic diagram of the number of channels corresponding to each receiving address pointer before the transport layer adjusts the number of channels of a virtual channel according to the scheduling configuration information according to the first aspect of embodiment 1 of the present disclosure;

fig. 9B is a schematic diagram of the number of channels corresponding to each receiving address pointer after the transport layer adjusts the number of channels of the virtual channel according to the scheduling configuration information according to the first aspect of embodiment 1 of the present disclosure;

fig. 10 is a schematic diagram of a remote control transmission frame corresponding to a first application process allocated with a plurality of virtual channels according to a first aspect of embodiment 1 of the present disclosure;

fig. 11 is a schematic diagram of a remote control transmission frame corresponding to a second application process and other remote control transmission frames sharing the same virtual channel according to the first aspect of embodiment 1 of the present disclosure;

fig. 12 is a flowchart of a method for transmitting remote control application data corresponding to an application process according to the first aspect of embodiment 1 of the present disclosure;

fig. 13 is a schematic diagram of an apparatus for scheduling virtual channels based on a segment layer according to a first aspect of embodiment 2 of the present disclosure; and

fig. 14 is a schematic diagram of an apparatus for scheduling a virtual channel based on a segment layer according to a first aspect of embodiment 3 of the present disclosure.

Detailed Description

In order to make those skilled in the art better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. It is to be understood that the described embodiments are merely exemplary of some, and not all, of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings 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 disclosure described herein are capable of operation in sequences other than those illustrated or otherwise 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

In accordance with the present embodiments, there is provided an embodiment of a method for scheduling virtual channels based on a hierarchical layer, it being noted that the steps illustrated in the flowchart of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be performed in an order different than here.

The method provided by the embodiment can be executed in a satellite terrestrial system. Fig. 2 illustrates a block diagram of a hardware architecture of a computing device of a method of scheduling virtual channels based on a segmentation layer. As shown in fig. 2, the computing device may include one or more processors (which may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory for storing data, a transmission device for communication functions, and an input/output interface. Wherein the memory, the transmission device and the input/output interface are connected with the processor through a bus. It will be understood by those skilled in the art that the structure shown in fig. 2 is only an illustration and is not intended to limit the structure of the electronic device. For example, the computing device may also include more or fewer components than shown in FIG. 2, or have a different configuration than shown in FIG. 2.

It should be noted that the one or more processors and/or other data processing circuitry described above may be referred to generally herein as "data processing circuitry". The data processing circuitry may be embodied in whole or in part in software, hardware, firmware, or any combination thereof. Further, the data processing circuitry may be a single, stand-alone processing module, or incorporated in whole or in part into any of the other elements in the computing device. As referred to in the disclosed embodiments, the data processing circuit acts as a processor control (e.g., selection of a variable resistance termination path connected to the interface).

The memory may be used to store software programs and modules of application software, such as program instructions/data storage devices corresponding to the method for adjusting the time slot of the virtual channel based on the segmentation layer in the embodiments of the present disclosure, and the processor may execute various functional applications and data processing by executing the software programs and modules stored in the memory, that is, implement the method for adjusting the time slot of the virtual channel based on the segmentation layer of the application program. The memory may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory may further include memory located remotely from the processor, which may be connected to the computing device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The transmission device is used for receiving or transmitting data via a network. Specific examples of such networks may include wireless networks provided by communication providers of the computing devices. In one example, the transmission device includes a Network adapter (NIC) that can be connected to other Network devices through a base station to communicate with the internet. In one example, the transmission device may be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.

It should be noted here that in some alternative embodiments, the computing device shown in fig. 2 described above may include hardware elements (including circuitry), software elements (including computer code stored on a computer-readable medium), or a combination of both hardware and software elements. It should be noted that FIG. 2 is only one example of a particular specific example and is intended to illustrate the types of components that may be present in the computing devices described above.

Fig. 3 shows a satellite remote control system according to the present embodiment. Referring to fig. 3, the system includes: a satellite-based ground system 200 and a spacecraft 100 (e.g., a satellite, etc.), wherein the satellite-based ground system 200 transmits remote control application data corresponding to an application process deployed in the spacecraft 100 to the spacecraft 100 by means of packet-based remote control via a communication channel between the satellite-based ground system 200 and the spacecraft 100. In addition, the spacecraft 100 receives remote control application data corresponding to an application process transmitted by the satellite ground system 200, and returns feedback information to the satellite ground system 200 by means of sub-packet telemetry. Wherein the computing devices of the satellite terrestrial system 200 and the spacecraft 100 are both adapted to the hardware architecture shown in fig. 2.

Fig. 4 shows a system architecture of the packetized remote control system according to the present embodiment. Where IS _0 represents source 0, IS _1represents source 1, and so on, and IS _ n represents source n. Fig. 5 shows a hierarchical structure of segment layers in the packetized remote control system according to the present embodiment. Referring to fig. 5, the segment layer of the packet remote control system can access the preset receiving address pointer configuration table and the priority configuration table, thereby obtaining the information of the receiving address pointer configuration table and the information of the priority configuration table. In addition, the staff member can configure the receiving address pointer configuration table and the priority configuration table through the user interface. And the information sources IS _ 0-IS _ n transmit the remote control application data corresponding to the application process to a packaging layer of the packet remote control system through an application data interface.

Referring to fig. 5, the segmentation layer in the present embodiment is provided with a segmentation processing unit, a plurality of remote control segment queues, and a remote control segment transmission unit. The segmentation processing unit may be a program unit for performing segmentation level operations, for example, a thread or a process for performing segmentation level operations. And wherein the segmentation processing unit may access a preset receive address pointer configuration table, so that the segmentation processing unit may configure the "receive address pointer" field of the remote control segment header according to the receive address pointer configuration table.

In addition, as shown in fig. 5, the segment layer in the present embodiment is also provided with a plurality of remote control segment queues. The segmentation processing unit transmits the remote control segment to the remote control segment transmission unit through a plurality of remote control segment queues. Specifically, the plurality of remote control segment queues respectively correspond to different receiving address pointers, and are used for respectively temporarily storing and arranging the remote control segments including the corresponding receiving address pointers. Wherein the remote control segment queue i (i is more than or equal to 0 and less than or equal to n) corresponds to the receiving address pointer ADD _ i (i is more than or equal to 0 and less than or equal to n). For example, remote control segment queue 0 corresponds to receive address pointer ADD _0, remote control segment queue 1 corresponds to receive address pointer ADD _1, and so on, remote control segment queue n corresponds to receive address pointer ADD _ n.

Since the remote control segment contains different receiving address pointers, the segmentation processing unit can transmit the remote control segment to the corresponding remote control segment queue. For example, fig. 6 shows a plurality of remote control segment queues corresponding to the reception address pointers in the segmentation layer according to the present embodiment. Wherein TS _ i (i is more than or equal to 0 and less than or equal to n) represents the remote control segment with the receiving address pointer being ADD _ i. For example, TS _0 is transmitted to remote segment queue 0, TS _1is transmitted to remote segment queue 1, TS _2is transmitted to remote segment queue 2, and so on, TS _ n is transmitted to remote segment queue n. Therefore, the remote control segment queue 0 includes remote control segments TS _0 having a receiving address pointer of 0, the remote control segment queue 1 includes remote control segments TS _1 having a receiving address pointer of 1, the remote control segment queue 2 includes remote control segments TS _2 having a receiving address pointer of 2, and so on, and the remote control segment queue n includes remote control segments TS _ n having a receiving address pointer of n. Then, the remote control segment transmission unit may acquire corresponding remote control segments from the plurality of remote control segment queues and transmit the remote control segments to the remote control segment transmission unit.

The remote control segment transmission unit may be a program unit for performing remote control segment transmission. And wherein the remote control segment transmission unit is capable of determining the scheduling configuration information by accessing a preset priority configuration table. Then, the remote control segment transmission unit transmits the remote control segment to the transport layer according to the proportional relationship indicated by the scheduling configuration information.

In the operating environment described above, according to the first aspect of the present embodiment, a method for scheduling virtual channels based on a segmentation layer is provided, and the method is implemented by the satellite terrestrial system 200 shown in fig. 3. Fig. 7 shows a flow chart of the method according to the embodiment, and referring to fig. 7, the method includes:

s702: receiving remote control application data corresponding to an application process deployed in a spacecraft through a packaging layer of a sub-packaging remote control system, and generating remote control packages respectively corresponding to the application process;

s704: receiving a remote control packet and generating a remote control section corresponding to an application process, wherein the remote control section comprises a receiving address pointer corresponding to the application process;

s706: determining scheduling configuration information related to the application process according to a priority relation corresponding to the application process, wherein the scheduling configuration information is used for indicating a scheduling proportion of remote control application data corresponding to the application process;

s708: transmitting the remote control segment containing different receiving address pointers to a transmission layer;

s710: creating a virtual channel, and determining the channel number of the virtual channel corresponding to the application process according to the scheduling configuration information; and

s712: and allocating the virtual channels corresponding to the application process according to the determined number of the channels.

Specifically, referring to fig. 1B, 4 and 5, an application data interface IS disposed in the satellite ground system 200, and the application data interface IS in communication connection with the information sources IS _0 to IS _ n, respectively, and receives remote control application data sent by the information sources IS _0 to IS _ n. And then, the application data interface transmits the received remote control application data sent by the information sources IS _0 to IS _ n to a packaging layer in the packet remote control system.

After receiving the remote control application data corresponding to the application procedures deployed in the spacecraft 100, the wrapper layer in the packet-based remote control system generates remote control packets corresponding to the application procedures, respectively (S702). Table 1 below shows a schematic diagram of a data format of the remote control packet:

TABLE 1

Wherein, the packaging layer fills in a field 'application process identification' in a leading header of the remote control package according to an application process corresponding to the remote control application data. Table 2 is a configuration table of application number-application process identification. Referring to table 2, different applications correspond to specific application serial numbers, and different applications correspond to specific application process identifications. Where APP _0 represents application 0, APP _1represents application 1, and so on, APP _ n represents application n. APID _0 represents the application process identification of APP _0, APID _1 represents the application process identification of APP _1, and so on, APID _ n represents the application process identification of APP _ n. For example, the application serial number of the measurement and control unit a is APP _1, and the application process identification corresponding to the measurement and control unit a is APID _1.

TABLE 2

The wrapping layer in the packetized remote control system then transmits the remote control packet to the segmentation layer.

The segmentation layer in the packet remote control system receives the remote control packet and generates a remote control segment corresponding to the application procedure from the remote control packet (S704). Referring to fig. 5, a segmentation processing unit in the segmentation layer generates a remote control segment from a received remote control packet. In particular, the segmentation processing unit divides a long remote control packet into several shorter remote control segments. Wherein, the following table 3 shows the data format of the remote control segment:

TABLE 3

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And wherein the segmentation processing unit is operable to access the receive address pointer configuration table to configure the receive address pointer field of the remote control segment header in accordance with the application process identification field in the remote control packet. Table 4 is a configuration table of source-application process identification-receiving address pointers. Where ADD _0 represents the receive address pointer corresponding to IS _0, ADD _1 represents the receive address pointer corresponding to IS _1, and so on, ADD _ n represents the receive address pointer corresponding to IS _ n. Referring to table 4, IS _0 corresponds to APP _0, APP _0 corresponds to APID _0, APID _0 corresponds to ADD _0, and so on, IS _ n corresponds to APP _ n, APP _ n corresponds to APID _ n, and APID _ n corresponds to ADD _ n.

TABLE 4

Then, the segmentation processing unit in the segmentation layer transmits the generated remote control segment to the corresponding remote control segment queue according to the received address pointer, as shown in fig. 6.

The remote control transmission unit in the segment layer determines scheduling configuration information related to the application procedure according to the priority relationship corresponding to the application procedure (S706). Referring to fig. 5, the remote control transmission unit accesses a preset priority configuration table and then determines scheduling configuration information related to an application process according to the priority configuration table. Each application process corresponds to different priorities, and the different priorities correspond to different priority parameters.

Then, the remote control segment transmission unit in the segment layer determines a score corresponding to the priority parameter of each application process according to the priority parameter corresponding to the different application processes, and determines a second weight value (corresponding to the second weight value of the claims) corresponding to each application process according to the score corresponding to the priority parameter of each application process. The proportional relation indicated by the second weight value is scheduling configuration information for scheduling among a plurality of application processes.

Further, the remote control segment transmission unit in the segment layer transmits the remote control segments containing different receiving address pointers to the transport layer according to the scheduling ratio indicated by the scheduling configuration information (S708). Fig. 8 illustrates the transmission of remote control segments to the transport layer in a proportional relationship by the segmentation layer according to the present embodiment. Referring to fig. 8, the number of remote control segments TS _0 to TS _ n corresponds to a scheduling ratio of remote control application data corresponding to an application process indicated by scheduling configuration information.

Then, the transport layer in the packetized remote control system creates a virtual channel, and determines the channel number of the virtual channel corresponding to the application procedure according to the scheduling configuration information (S710). Fig. 9A shows the number of channels corresponding to each receive address pointer before the transport layer according to the present embodiment adjusts the number of channels of the virtual channel according to the scheduling configuration information; fig. 9B shows the number of channels corresponding to each receiving address pointer after the transport layer adjusts the number of channels of the virtual channel according to the scheduling configuration information according to the present embodiment. Referring to fig. 9A, before the transport layer does not adjust the information amount of the virtual channel according to the scheduling configuration information, remote control transport frames with ADD _1 transmission and reception address pointers of VC _0 to VC_2, remote control transport frames with ADD _2 transmission and reception address pointers of VC _3 to VC_5, and remote control transport frames with ADD _3 transmission and reception address pointers of VC _6 to VC_8 are transmitted and received. Referring to fig. 9B, after the transport layer adjusts the number of virtual channels according to the scheduling configuration information, the remote control transport frames with ADD _1 as the transport and reception address pointers are transmitted and received by VC _0 to VC_4, the remote control transport frames with ADD _2 as the transport and reception address pointers are transmitted and received by VC _5 to VC_7, and the remote control transport frames with ADD _3 as the transport and reception address pointers are transmitted and received by VC _8. As is clear from fig. 9A and 9B, according to the scheduling proportional relationship indicated by the scheduling configuration information, the number of channels of the virtual channel of the remote control transmission frame whose transmission/reception address pointer is ADD _1 is changed from 3 to 5, the number of channels of the virtual channel of the remote control transmission frame whose transmission/reception address pointer is ADD _2 is not changed, and the number of channels of the virtual channel of the remote control transmission frame whose transmission/reception address pointer is ADD _3 is changed from 3 to 1. Accordingly, the transport layer can determine the channel number of the virtual channel corresponding to the application procedure according to the scheduling configuration information. Further, it should be apparent to those skilled in the art that the number of channels of the virtual channel may be adjusted in a time division manner. Further, it should be clear to those skilled in the art that the present embodiment only exemplifies one way of adjusting the number of channels of the virtual channel, and other ways capable of adjusting the number of channels of the virtual channel may also be applied to the present embodiment.

Further, the transport layer allocates a virtual channel corresponding to the application procedure according to the determined number of channels (S712). Fig. 10 shows that the remote control transmission frame corresponding to the first application process according to the present embodiment is allocated with a plurality of virtual channels. Referring to fig. 10, remote control transmission frames with a reception address pointer ADD _1 are assigned to VC _0 to VC _, remote control transmission frames with a reception address pointer of ADD _2 are assigned to VC _5 to VC _, 7, and remote control transmission frames with a reception address pointer of ADD _3 are assigned to VC _8. Therefore, the transport layer transmits the remote control transmission frame with the reception address pointer ADD _1 to the spacecraft 100 through VC _0 to VC_4, the transport layer transmits the remote control transmission frame with the reception address pointer ADD _2 to the spacecraft 100 through VC _5 to VC_7, and the transport layer transmits the remote control transmission frame with the reception address pointer ADD _3 to the spacecraft 100 through VC _8. Therefore, after the transport layer adjusts the number of channels of the virtual channel according to the scheduling proportional relationship corresponding to the application process indicated by the scheduling configuration information, the remote control transport frame transmitted via the virtual channel also corresponds to the scheduling proportional relationship corresponding to the application process indicated by the scheduling configuration information.

As described in the background art, in practical applications, the transmission path required for transmitting remote control application data is much smaller than 64. That is, it is sufficient to transmit remote control application data using 64 virtual channels, and it is not necessary to divide the virtual channels using the reception address pointers. Although in the case of large remote control application data, it is still necessary to segment the remote control packet using the segmentation layer. However, since it is sufficient to transmit the remote control application data using 64 virtual channels, the receiving address pointer of the remote control segment is not used, but a constant value is set at the segment head of the remote control segment. However, in the actual application process, the source-to-application transmission process still needs to be scheduled. In the prior art, a scheduling mechanism based on priority can be set at the transmission layer, for example, so as to schedule the remote control transmission frame. However, since the original transport layer does not have the scheduling mechanism based on the priority, the method of setting the scheduling mechanism based on the priority in the transport layer may increase the cost.

In view of this, according to the technical solution of this embodiment, first, after receiving remote control application data corresponding to application procedures and transmitted by a plurality of information sources, a wrapping layer of a packet remote control system generates remote control packets respectively corresponding to the application procedures. Then, the segmentation layer receives the remote control packet and generates a remote control segment corresponding to the application process according to the remote control packet. Wherein the remote control segment contains a receive address pointer corresponding to the application process. Further, the segmentation layer determines scheduling configuration information related to the application process, and transmits the remote control segment to the transmission layer according to a scheduling proportional relation indicated by the scheduling configuration information. In addition, the transmission layer creates a plurality of virtual channels, and determines the channel number of the virtual channel corresponding to the application process according to the scheduling proportional relation indicated by the scheduling configuration information. And finally, the transmission layer allocates virtual channels corresponding to the application process according to the determined number of the channels, and transmits the remote control transmission frame to the spacecraft through the virtual channels. The transmission layer can determine the channel number of the virtual channel corresponding to the application process according to the scheduling proportional relation indicated by the scheduling configuration information, and the scheduling configuration information is determined based on the priority mechanism in the segmentation layer, so that the transmission layer can schedule the remote control transmission frame without introducing an additional scheduling configuration mechanism based on the priority. Therefore, the technical effect that the priority mechanism in the segmentation layer can be fully utilized to generate the scheduling mechanism based on the priority without additionally introducing the scheduling mechanism based on the priority into the transmission layer is achieved through the operation, and the cost is further reduced. The method further solves the technical problem that in the prior art, the priority mechanism in the segmentation layer cannot be fully utilized to generate the scheduling mechanism based on the priority, and the scheduling mechanism based on the priority needs to be additionally introduced into the transmission layer, so that the cost is increased.

Optionally, the operation of allocating a virtual channel corresponding to the application process according to the determined number of channels includes: for a first application process with a channel number greater than 1, remote control transfer frames corresponding to the first application process are transmitted through a plurality of virtual channels.

Specifically, as shown in fig. 4, 5 and 10, if the number of channels of the virtual channel of the first application procedure is greater than 1, the remote control transfer frame corresponding to the first application procedure is transmitted through the plurality of virtual channels. Specifically, for example, the remote control transmission frame with the reception address pointer ADD _1 in fig. 10 is transmitted through VC _0 to VC _4, and the number of virtual channels for transmitting and receiving the remote control transmission frame with the reception address pointer ADD _1 is 5; the remote control transmission frame with the receiving address pointer ADD _2 is sent through VC _5 to VC _7, and the number of virtual channels for sending and receiving the remote control transmission frame with the address pointer ADD _2 is 3 at the moment. It can be seen that, when the data amount of the remote control application data corresponding to the first application procedure is large, the transmission of the remote control transmission frame corresponding to the first application procedure can be realized by increasing the number of channels of the virtual channel.

Therefore, the technical effect that more virtual channels can be allocated to the remote control transmission frame with larger data volume according to the actual situation and the congestion of the transmission process is avoided is achieved through the operation.

Optionally, the operation of allocating a virtual channel corresponding to the application process according to the determined number of channels includes: for a second application process with a channel number less than 1, the remote control transmission frame corresponding to the second application process is transmitted in a manner of sharing the same virtual channel with other application processes.

Specifically, fig. 11 is a case where a remote control transfer frame corresponding to the second application process and other remote control transfer frames share the same virtual channel according to an embodiment of the present disclosure. Referring to fig. 4, 5, and 11, if the number of channels of the virtual channel of the second application procedure is less than 1, the remote control transmission frame corresponding to the second application procedure is transmitted in such a manner that one virtual channel is shared with other application procedures. Specifically, for example, the remote control transfer frames of which reception address pointers are ADD _3 and ADD _4 in fig. 11 are transmitted through VC _8, and at this time, the remote control transfer frames of which reception address pointers are ADD _3 and ADD _4 share one virtual channel. As can be seen from this, when the data amount of the remote control application data corresponding to the second application process is small, the transmission of the remote control transmission frame corresponding to the second application process can be realized by sharing the same virtual channel with other application processes.

Therefore, the technical effect that the remote control transmission frame with small data volume can be transmitted through the same virtual channel according to the actual situation and resource waste is avoided is achieved through the operation.

Optionally, the operation of generating a remote control segment corresponding to the application process includes: reading an application process identification field of the remote control packet, and determining an application process corresponding to the remote control packet according to the application process identification field; determining a receiving address pointer corresponding to the remote control packet according to the determined application process; and generating a remote control segment according to the determined receiving address pointer.

Specifically, referring to fig. 4 and 5, the packaging layer generates a remote control packet according to remote control application data sent by the information sources IS _0 to IS _ n, and transmits the remote control packet to the segmentation layer.

And then, the segmentation layer reads the application process identification field of the remote control packet and determines the application process corresponding to the remote control packet according to the application process identification field. Specifically, referring to table 4, the information sources IS _0 to IS _ n correspond to the applications APP _0 to APP _ n one to one, and each application has a specific application process identification, so the information sources IS _0 to IS _ n correspond to the application process identifications APID _0 to application process identifications APID _ n one to one, respectively. And the information sources IS _0 to IS _ n are respectively in one-to-one correspondence with the application process identification APID _0 to the application process identification APID _ n, so that the segmentation layer can read the application process identification field of the remote control packet and determine the application process corresponding to the remote control packet according to the application process identification field.

Further, after the segmentation layer determines the application process corresponding to the remote control packet, the receiving address pointer corresponding to the remote control packet is determined according to the determined application process. Specifically, referring to table 4, IS _0 corresponds to APP _0, APP _0 corresponds to APID _0, APID _0 corresponds to ADD _0, and so on, IS _ n corresponds to APP _ n, APP _ n corresponds to APID _ n, and APID _ n corresponds to ADD _ n. Therefore, the segmentation processing unit in the segmentation layer can determine the receiving address pointer corresponding to the remote control packet according to the determined application process.

And finally, the segmentation layer generates a remote control segment according to the determined receiving address pointer.

Therefore, the technical effect of generating the remote control segment corresponding to the receiving address pointer according to the determined receiving address pointer is achieved through the operation.

Optionally, the operation of determining scheduling configuration information related to the application process includes: accessing a preset priority configuration table, and determining a priority parameter corresponding to an application process according to the priority configuration table; and determining scheduling configuration information according to the priority parameter.

Specifically, referring to fig. 4 and 5, the remote control segment transmission unit in the segment layer accesses a preset priority configuration table, and then determines a priority parameter corresponding to an application procedure according to the priority configuration table.

In particular, table 5 shows the priority parameters of 4 application processes to be transmitted. Referring to table 5, the application processes 1 to 4 are determined as application processes APP _1 to APP _4, respectively. Although table 5 exemplarily shows 4 application processes, the number of specific application processes may be determined according to actual situations. And will not be described in detail herein.

Referring to table 5, the application process corresponding to application process 1 is APP _1, and the priority is 1; the application process corresponding to the application process 2 is APP _2, and the priority is 2; the application process corresponding to the application process 3 is APP _3, and the priority is 3; and application process 4 corresponds to application process APP _4 with priority level 4. And wherein the priority parameter of application process 1 is 9, the priority parameter of application process 2 is 7, the priority parameter of application process 3 is 5, and the priority parameter of application process 4 is 3.

TABLE 5

The priority parameters of different application processes are different, and the scheduling configuration information corresponding to the priority parameters of different application processes is also different. Accordingly, the remote control segment transmission unit in the segment layer can determine the scheduling configuration information by determining the priority parameters corresponding to the plurality of application processes. In the above, the application process APP _1 is exemplarily taken as the application process 1, the application process APP _2 is taken as the application process 2, the application process APP _3 is taken as the application process 3, and the application process APP _4 is taken as the application process 4. However, the technical solution of the present disclosure is not limited to this, and a person skilled in the art may determine the application processes 1 to 4 according to actual situations, for example, the application process 1 may be an application process APP _2, and the application process 2 may be an application process APP _5, and the like. And the priority parameters of the application processes 1 to 4 are different with different specific application processes. For example, when the application process of application process 1 is APP _2, its priority is 2, and the priority parameterD ₂ Is 7.

Therefore, the technical effect that the scheduling configuration information corresponding to different application processes can be determined according to the priorities of the different application processes, and then the remote control application data corresponding to the different application processes are scheduled in the transmission process is achieved through the operation.

Optionally, the operation of determining the scheduling configuration information according to the priority parameter includes: and taking the ratio of the scores corresponding to the priority parameters as scheduling configuration information.

Specifically, taking Table 5 as an example, the segment layer is based on the priority parameters corresponding to the application processes APP _1 to APP _4D ₁ ~D ₄ Determining and prioritizing parametersD ₁ ~D ₄ Corresponding score valueN ₁ ~N ₄ . Specifically, it can be determined, for example, according to the following formula:

(formula 1)

Wherein the content of the first and second substances,i=1~4。

for example, the score corresponding to the priority parameter of the application APP _1N ₁ 9, score corresponding to priority parameter of application process APP _2N ₂ Is 7, the score corresponding to the priority parameter of the application process APP _3N ₃ Is 5 and the score corresponding to the priority parameter of the application APP _4N ₄ Is 3. Thus, the score of the application APP _1N ₁ Score of application APP _2N ₂ Score of application Process APP _3N ₃ And score of application APP _4N ₄ The ratio between them is 9. Therefore, the scheduling proportional relationship indicated by the scheduling configuration information is the proportion between the scores corresponding to the priority parameters of the application processes. Therefore, the transmission proportion of the remote control application data in different application processes can be determined according to the proportion relation.

Therefore, the technical effect of determining the scheduling configuration information by determining the priority parameter of each application process and then scheduling the remote control application data corresponding to different application processes in the transmission process is achieved through the operation.

Optionally, the operation of determining the scheduling configuration information according to the priority parameter includes: determining a first weight value corresponding to the application process according to the score corresponding to the priority parameter of the application process; determining the length of remote control application data corresponding to the application process; determining a weighted data volume corresponding to the application process according to the first weight value and the length of the remote control application data; determining a second weight value corresponding to the application process according to the weighted data quantity; and determining scheduling configuration information according to the second weight value.

Specifically, referring to fig. 4 and 5, the segmentation layer may determine the scheduling configuration information according to the second weight value corresponding to the priority parameter of the application process. The second weight value is related to the score corresponding to the priority parameter of each application process.

First, taking Table 5 as an example, the segment layer is based on the priority parameters of each application process 1-4D ₁ ~D ₄ Determining priority parameters of each application process 1-4D ₁ ~D ₄ Corresponding score valueN ₁ ~N ₄ . The priority parameter of application process 1 may be determined, for example, according to equation (1)D ₁ Corresponding score valueN ₁ Is 9, priority parameter of application Process 2D ₂ Corresponding score valueN ₂ Is 7, priority parameter of application Process 3D ₃ Corresponding score valueN ₃ Is 5, and the priority parameter of application process 4D ₄ Corresponding score valueN ₄ Is 3.

Then, the segmentation layer can be based on the priority parameters of each application process 1-4D ₁ ~D ₄ Corresponding score valueN ₁ ~N ₄ Determining first weight values corresponding to each of the application processes 1-4

. The specific calculation formula is as follows:

(formula 2)

Wherein the content of the first and second substances,i=1~4。

and then, the segmentation layer determines the length of the remote control application data corresponding to each application process 1-4. For example,

indicates the length of remote control application data corresponding to the application process 1,

indicates the length of remote control application data corresponding to the application process 2,

indicates the length of remote control application data corresponding to the application process 3,

indicating the length of the remote control application data corresponding to the application process 4.

Further, the segmentation layer is according to the first weight value

And the length of the remote control application data

Determining the weighted data amount corresponding to each of the application processes 1-4wx ₁ ~wx ₄ . The specific calculation formula is as follows:

(formula 3)

Wherein the content of the first and second substances,i=1~4。

then, the segmentation layer weights the data volume according to each application process 1-4wx ₁ ~wx ₄ Determining a second weight value corresponding to each of the application processes 1-4s ₁ ~s ₄ . Wherein the content of the first and second substances,s ₁ ~s ₄ is composed ofwx ₁ ~wx ₄ And normalizing the calculated values.

Namely, it iss ₁ ：s ₂ ：s ₃ ：s ₄ =wx ₁ ：wx ₂ ：wx ₃ ：wx ₄ And is ands ₁ ：s ₂ ：s ₃ ：s ₄ the sum is 1.

Then, the segment layer is according to the second weight values ₁ ~s ₄ And determining the channel number of the virtual channel corresponding to each application process 1-4.

Optionally, the operation of determining the scheduling configuration information according to the priority parameter includes: determining the length of remote control application data corresponding to each application process; determining priority scores respectively corresponding to the information sources from a plurality of preset priority scores according to the priority parameters of each application process and the length of the remote control application data; and using the proportion among the priority scores as scheduling configuration information.

Specifically, according to the technical scheme of the present disclosure, a plurality of priority scores may be set in advanceS ₁ ~S _m . For example, in the present embodiment, it is preferable tom=4, andS ₁ =4，S ₂ =3，S ₃ =2 andS ₄ and =1. Of course, m may take other values, and the priority valueS _j （j=1~m) Other integral values may also be taken. The setting can be made according to specific situations.

According to the technical scheme, the application process of the remote control application data to be transmittedi（i=1 to 4), according to the priority parameter of the application processD _i And remote control of application data lengthDegree of rotationx _i The application process can be determinediThe corresponding feature vector:

substituting the feature vector into the following formula to determine the application processiWith respective priority scoresS _j Probability value between:

(formula 4)

(formula 5)

Wherein the content of the first and second substances,j=1~m。

for example, for application Process 1, it can be determined along with the respective priority scoresS _j Probability of (2) in betweenP _1j （j=1~m) For application process 2, it can be determined with the respective priority scoresS _j Probability of (2) in betweenP _2j （j=1~m) By analogy, for application process 4, it can be determined with the respective priority scoresS _j Probability of (2) in betweenP _4j （j=1~m）。

Then, for application process 1, from the probability valuesP _1j （j=1~m) The priority score corresponding to the maximum probability value is selected as the priority score corresponding to the application process 1N ₁ . For example, when the probability valueP ₁₂ When maximum, select the corresponding priority scoreS ₂ As a priority score corresponding to application Process 1N ₁ 。

For application process 2, from probability valuesP _2j （j=1~m) In the method, the maximum probability value is selectedThe corresponding priority score is taken as the priority score corresponding to application Process 1N ₂ . For example, when the probability valueP ₂₁ At maximum, the corresponding priority score is selectedS ₁ As a priority score corresponding to application Process 2N ₂ 。

By analogy, for application process 4, from the probability valuesP _4j （j=1~m) In the method, the priority score corresponding to the maximum probability value is selected as the priority score corresponding to the application process 4N ₄ . For example, when the probability valueP ₄₃ At maximum, the corresponding priority score is selectedS ₃ As a priority score corresponding to application process 4N ₄ 。

Therefore, through the method, the priority scores corresponding to the application processes 1-4 can be determinedN ₁ ~N ₄ 。

The priority value may then be comparedN ₁ ~N ₄ The ratio therebetween serves as scheduling configuration information.

With respect to the parameters shown in equation (5)

Training can be performed using a gradient descent method. The following parameters

The description is given for the sake of example:

first, a sample set is constructed, wherein the specific information of the sample set is shown in table 6 below:

TABLE 6

Collecting each sample in the sample setSa _i Priority parameter ofDS _i And data lengthxs _i The samples were calculated by substituting the samples into the following equations (6) and (7) in orderSa _i Relative to priority scoreS ₁ Predicted probability value ofP _i 。

(formula 6)

(formula 7)

Mixing the sampleSa _i Corresponding priority scoreNS _i And priority valueS ₁ Making a comparison whenNS _i Corresponding to priority level valueS ₁ Then sample the bookSa _i Relative to priority scoreS ₁ Has an actual probability of 1, otherwise take the sampleSa _i Relative to priority scoreS ₁ The actual probability of (2) is 0.

According to the sampleSa _i Relative to priority scoreS ₁ The actual probability and the predicted probability value of the target object are calculated by the inverse gradient, and the parameters are calculated

Training is performed until the inverse gradient function converges.

For other parameters

The training can be performed by the above method, which is not described herein again.

Optionally, the segmentation layer is further provided with remote control segment queues respectively corresponding to different receiving address pointers, and transmits a remote control segment containing different receiving address pointers to the transport layer according to a proportional relationship indicated by the scheduling configuration information, including: inputting the remote control segment to a corresponding remote control segment queue according to a receiving address pointer contained in the remote control segment; and respectively acquiring remote control segments from the remote control segment queues corresponding to different receiving address pointers according to the proportional relation indicated by the scheduling configuration information, and sequentially transmitting the acquired remote control segments to the transmission layer.

Specifically, referring to fig. 5, the segmentation layer is further provided with a plurality of remote control segment queues, and the plurality of remote control segment queues respectively correspond to different reception address pointers. Therefore, the segmentation processing unit in the segmentation layer transmits the remote control segment containing different receiving address pointers to the corresponding remote control segment queue according to the receiving address pointers of the remote control segment. Further, referring to fig. 6, for example, the remote control segment queue 0 corresponds to the reception address pointer ADD _0, the remote control segment queue 1 corresponds to the reception address pointer ADD _1, and so on, and the remote control segment queue n corresponds to the reception address pointer ADD _ n. Thus, TS _0 is transmitted to remote segment queue 0, TS _1is transmitted to remote segment queue 1, TS _2is transmitted to remote segment queue 2, and so on, TS _ n is transmitted to remote segment queue n. That is, the remote control segment queue 0 includes remote control segments TS _0 having a reception address pointer of 0, the remote control segment queue 1 includes remote control segments TS _1 having a reception address pointer of 1, the remote control segment queue 2 includes remote control segments TS _2 having a reception address pointer of 2, and so on, and the remote control segment queue n includes remote control segments TS _ n having a reception address pointer of n.

Then, the remote control segment transmission unit in the segment layer respectively acquires the remote control segments from the remote control segment queues corresponding to different receiving address pointers according to the scheduling proportional relation indicated by the scheduling configuration information. For example, the segment layer includes a remote control segment queue 0, a remote control segment queue 1, a remote control segment queue 2, and a remote control segment queue 3. And wherein, the scheduling proportional relationship indicated by the scheduling configuration information is 9. Then, the remote control segment transmission unit in the segmentation layer acquires the remote control segments from the remote control segment queue 0, the remote control segment queue 1, the remote control segment queue 2 and the remote control segment queue 3 according to the scheduling proportional relationship of 9.

And finally, the remote control segment transmission unit in the segmentation layer sequentially transmits the acquired remote control segments to the transmission layer.

Therefore, the technical effect of scheduling the remote control section transmitted to the transmission layer according to the scheduling proportion relation indicated by the scheduling configuration information is achieved through the operation.

Optionally, the method further comprises: receiving the remote control segment from the segmentation layer and generating corresponding remote control transmission frames in sequence; and sequentially allocating the remote control transmission frames to the corresponding virtual channels.

Specifically, referring to fig. 4 and 5, after the remote control segment transmission unit in the segmentation layer transmits the remote control segment to the transport layer according to the scheduling proportional relationship indicated by the scheduling configuration information, the transport layer receives the remote control segment and generates corresponding remote control transmission frames in sequence.

Then, the transport layer sequentially allocates the remote transport frames to the corresponding virtual channels.

Therefore, the technical effects that the corresponding remote control transmission frames can be generated in sequence and the remote control transmission frames are distributed to the corresponding virtual channels in sequence are achieved through the operation.

According to the technical scheme of the embodiment, firstly, after a packaging layer of the subpackage remote control system receives remote control application data which are sent by a plurality of information sources and correspond to application processes, remote control packages which respectively correspond to the application processes are generated. Then, the segmentation layer receives the remote control packet and generates a remote control segment corresponding to the application process according to the remote control packet. Wherein the remote control segment contains a receive address pointer corresponding to the application process. Further, the segmentation layer determines scheduling configuration information related to the application process, and transmits the remote control segment to the transmission layer according to a scheduling proportional relation indicated by the scheduling configuration information. In addition, the transmission layer creates a plurality of virtual channels, and determines the channel number of the virtual channel corresponding to the application process according to the scheduling proportional relation indicated by the scheduling configuration information. And finally, the transmission layer allocates virtual channels corresponding to the application process according to the determined number of the channels, and transmits the remote control transmission frame to the spacecraft through the virtual channels. The transmission layer can determine the channel number of the virtual channel corresponding to the application process according to the scheduling proportional relation indicated by the scheduling configuration information, and the scheduling configuration information is determined based on the priority mechanism in the segmentation layer, so that the transmission layer can schedule the remote control transmission frame without introducing an additional scheduling configuration mechanism based on the priority. Therefore, the technical effect that the priority mechanism in the segmentation layer can be fully utilized to generate the scheduling mechanism based on the priority without additionally introducing the scheduling mechanism based on the priority into the transmission layer is achieved through the operation, and the cost is further reduced. The method further solves the technical problem that in the prior art, the priority mechanism in the segmentation layer cannot be fully utilized to generate the scheduling mechanism based on the priority, and the scheduling mechanism based on the priority needs to be additionally introduced into the transmission layer, so that the cost is increased.

Fig. 12 is a flowchart of a method for transmitting remote control application data corresponding to a plurality of application processes according to the present embodiment. Referring to fig. 12, the method includes:

s1202: the remote control application data corresponding to different application processes are transmitted to the packaging layer through the application data interfaces by the plurality of information sources;

s1204: the packaging layer receives remote control application data corresponding to the application processes, generates remote control packets corresponding to the application processes respectively, and transmits the remote control packets to the segmentation layer;

s1206: the segmentation layer receives the remote control packet, reads an application process identification field of the remote control packet, and determines an application process corresponding to the remote control packet according to the application process identification field;

s1208: the segmentation layer determines a receiving address pointer corresponding to the remote control packet according to the determined application process, and generates a remote control segment according to the receiving address pointer;

s1210: the segmentation layer accesses a preset priority configuration table and determines priority parameters corresponding to a plurality of application processes according to the priority configuration table;

s1212: the segmentation layer determines a score corresponding to the priority parameter of each application process according to the priority parameter of each application process;

s1214: and the segmentation layer determines a first weight value according to the score corresponding to the priority parameter of each application process. And reading the length of the remote control application data corresponding to each application process by the segmentation layer, and determining the weighted data volume of each application process according to the first weight value and the length of the remote control application data. The segmentation layer determines a second weight value corresponding to each application process according to the weighted data quantity, and determines scheduling configuration information according to the second weight value;

s1216: the segmentation layer inputs the remote control segment to a corresponding remote control segment queue according to a receiving address pointer contained in the remote control segment;

s1218: the segmentation layer respectively acquires remote control segments from remote control segment queues corresponding to different receiving address pointers according to a scheduling proportional relation indicated by scheduling configuration information, and sequentially transmits the acquired remote control segments to the transmission layer;

s1220: the transmission layer creates virtual channels corresponding to a plurality of application processes, and adjusts the channel number of the virtual channels according to the scheduling proportional relation indicated by the scheduling configuration information;

s1222: for a first application process with the number of channels greater than 1, transmitting a remote control transmission frame corresponding to the first application process through a plurality of virtual channels; for a second application process with the number of channels less than 1, sending a remote control transmission frame corresponding to the second application process in a mode of sharing the same virtual channel with other application processes;

s1224: the transport layer receives the remote control segments from the segmentation layer, generates corresponding remote control transport frames in sequence, and allocates the remote control transport frames to corresponding virtual channels in sequence.

Further, referring to fig. 2, according to a second aspect of the present embodiment, there is provided a storage medium. The storage medium comprises a stored program, wherein the method of any of the above is performed by a processor when the program is run.

According to the technical scheme of the embodiment, firstly, after a packaging layer of the subpackage remote control system receives remote control application data which are sent by a plurality of information sources and correspond to application processes, remote control packages which respectively correspond to the application processes are generated. Then, the segmentation layer receives the remote control packet and generates a remote control segment corresponding to the application process according to the remote control packet. Wherein the remote control segment contains a receive address pointer corresponding to the application process. Furthermore, the segmentation layer determines scheduling configuration information related to the application process and transmits the remote control segment to the transmission layer according to a scheduling proportional relation indicated by the scheduling configuration information. In addition, the transmission layer creates a plurality of virtual channels, and determines the channel number of the virtual channel corresponding to the application process according to the scheduling proportional relation indicated by the scheduling configuration information. And finally, the transmission layer allocates virtual channels corresponding to the application process according to the determined number of the channels, and transmits the remote control transmission frame to the spacecraft through the virtual channels. The transmission layer can determine the channel number of the virtual channel corresponding to the application process according to the scheduling proportional relation indicated by the scheduling configuration information, and the scheduling configuration information is determined based on the priority mechanism in the segmentation layer, so that the transmission layer can schedule the remote control transmission frame without introducing an additional scheduling configuration mechanism based on the priority. Therefore, the technical effect that the priority mechanism in the segmentation layer can be fully utilized to generate the scheduling mechanism based on the priority without additionally introducing the scheduling mechanism based on the priority into the transmission layer is achieved through the operation, and the cost is further reduced. The method further solves the technical problem that in the prior art, the priority mechanism in the segmentation layer cannot be fully utilized to generate the scheduling mechanism based on the priority, and the scheduling mechanism based on the priority needs to be additionally introduced into the transmission layer, so that the cost is increased.

It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.

Example 2

Fig. 13 is a schematic diagram of an apparatus for scheduling a virtual channel based on a segment layer according to the first aspect of embodiment 2 of the present application. Referring to fig. 13, the apparatus 1300, for use in the satellite terrestrial system 200, comprises: a remote control package generation module 1310 configured to receive remote control application data corresponding to an application process deployed in a spacecraft and generate remote control packages respectively corresponding to the application process; a remote control segment generation module 1320, configured to receive a remote control packet and generate a remote control segment corresponding to an application process, where the remote control segment includes a receiving address pointer corresponding to the application process; a scheduling configuration information determining module 1330 configured to determine scheduling configuration information related to the application process according to a priority relationship corresponding to the application process, wherein the scheduling configuration information is used to indicate a scheduling ratio of remote control application data corresponding to the application process; a remote segment transmitting module 1340 for transmitting remote segments containing different receiving address pointers to the transport layer; a channel number determining module 1350, configured to create a virtual channel, and determine, according to the scheduling configuration information, the channel number of the virtual channel corresponding to the application process; and a virtual channel assignment module 1360 for assigning a virtual channel corresponding to the application process according to the determined number of channels.

Optionally, the virtual channel assignment module 1360 includes: and the first remote control frame sending module is used for sending the remote control transmission frames corresponding to the first application process through a plurality of virtual channels for the first application process with the channel number larger than 1.

Optionally, the virtual channel assignment module 1360 includes: and the second remote control frame sending module is used for sending the remote control transmission frame corresponding to the second application process in a mode of sharing the same virtual channel with other application processes for the second application process with the channel number less than 1.

Optionally, the remote control segment generating module 1320 includes: the application process determining module is used for reading the application process identification field of the remote control packet and determining the application process corresponding to the remote control packet according to the application process identification field; a receiving address pointer determining module, configured to determine a receiving address pointer corresponding to the remote control packet according to the determined application process; and the remote control segment generation submodule is used for generating a remote control segment according to the determined receiving address pointer.

Optionally, the scheduling configuration information determining module 1330 includes: the priority parameter determining module is used for accessing a preset priority configuration table and determining a priority parameter corresponding to the application process according to the priority configuration table; and the first scheduling configuration information determining submodule is used for determining the scheduling configuration information according to the priority parameter.

Optionally, the scheduling configuration information determining module 1330 includes: and the second scheduling configuration information determining submodule is used for taking the proportion between the scores corresponding to the priority parameters as scheduling configuration information.

Optionally, the scheduling configuration information determining module 1330 includes: the first weight value determining module is used for determining a first weight value corresponding to the application process according to the score corresponding to the priority parameter of the application process; the remote control application data length determining module is used for determining the length of the remote control application data corresponding to the application process; the weighted data volume determining module is used for determining the weighted data volume corresponding to the application process according to the first weight value and the length of the remote control application data; the second weight value determining module is used for determining a second weight value corresponding to the application process according to the weighted data volume; and a third scheduling configuration information determining submodule, configured to determine the scheduling configuration information according to the second weight value.

Optionally, the segmentation layer is further provided with remote control segment queues respectively corresponding to different receiving address pointers, and transmits a remote control segment containing different receiving address pointers to the transport layer according to a proportional relationship indicated by the scheduling configuration information, including: the remote control segment input module is used for inputting the remote control segment to a corresponding remote control segment queue according to the receiving address pointer contained in the remote control segment; and the remote control segment sending module is used for respectively obtaining the remote control segments from the remote control segment queues corresponding to the different receiving address pointers according to the proportional relation indicated by the scheduling configuration information and sequentially transmitting the obtained remote control segments to the transmission layer.

Optionally, the apparatus 1300 further comprises: a remote control transmission frame generation module for receiving remote control segments from the segmentation layer and generating corresponding remote control transmission frames in sequence; and a virtual channel allocation submodule for sequentially allocating the remote control transmission frames to the corresponding virtual channels.

According to the technical scheme of the embodiment, firstly, after a packaging layer of the subpackage remote control system receives remote control application data which are sent by a plurality of information sources and correspond to application processes, remote control packages which respectively correspond to the application processes are generated. Then, the segmentation layer receives the remote control packet and generates a remote control segment corresponding to the application process according to the remote control packet. Wherein the remote control segment contains a receive address pointer corresponding to the application process. Further, the segmentation layer determines scheduling configuration information related to the application process, and transmits the remote control segment to the transmission layer according to a scheduling proportional relation indicated by the scheduling configuration information. In addition, the transmission layer creates a plurality of virtual channels, and determines the channel number of the virtual channel corresponding to the application process according to the scheduling proportional relation indicated by the scheduling configuration information. And finally, the transmission layer allocates virtual channels corresponding to the application process according to the determined number of the channels, and transmits the remote control transmission frame to the spacecraft through the virtual channels. The transmission layer can determine the channel number of the virtual channel corresponding to the application process according to the scheduling proportional relation indicated by the scheduling configuration information, and the scheduling configuration information is determined based on the priority mechanism in the segmentation layer, so that the transmission layer can schedule the remote control transmission frame without introducing an additional scheduling configuration mechanism based on the priority. Therefore, the technical effects that the priority mechanism in the segmentation layer can be fully utilized to generate the scheduling mechanism based on the priority, the scheduling mechanism based on the priority is not required to be additionally introduced into the transmission layer, and the cost is reduced are achieved. The method further solves the technical problem that in the prior art, the priority mechanism in the segmentation layer cannot be fully utilized to generate the scheduling mechanism based on the priority, and the scheduling mechanism based on the priority needs to be additionally introduced into the transmission layer, so that the cost is increased.

Example 3

Fig. 14 is a schematic diagram of an apparatus for scheduling a virtual channel based on a segment layer according to the first aspect of embodiment 3 of the present application. Referring to fig. 14, the apparatus 1400 is used in the satellite terrestrial system 200, and includes: a processor 1410; and a memory 1420 coupled to the processor 1410 for providing instructions to the processor 1410 to process the following process steps: receiving remote control application data corresponding to an application process deployed in a spacecraft through a packaging layer of a sub-packaging remote control system, and generating remote control packages corresponding to the application process respectively; the segmentation layer receives the remote control packet and generates a remote control segment corresponding to the application process, wherein the remote control segment comprises a receiving address pointer corresponding to the application process; the segmentation layer determines scheduling configuration information related to the application process according to a priority relation corresponding to the application process, wherein the scheduling configuration information is used for indicating a scheduling proportion of remote control application data corresponding to the application process; the segmentation layer transmits the remote control segments containing different receiving address pointers to the transmission layer; the transmission layer creates virtual channels, and determines the channel number of the virtual channels corresponding to the application process according to the scheduling configuration information; and the transport layer allocates virtual channels corresponding to the application process according to the determined number of channels.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

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 apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be implemented in practice, 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 place, or may be distributed on a plurality of network 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 method for scheduling virtual channels based on a segmentation layer is used for a satellite ground system, and the method comprises the following steps:

receiving remote control application data corresponding to an application process deployed in a spacecraft through a packaging layer of a sub-packaging remote control system, and generating remote control packages respectively corresponding to the application process;

receiving the remote control packet and generating a remote control segment corresponding to the application process, wherein the remote control segment comprises a receiving address pointer corresponding to the application process;

determining scheduling configuration information related to the application process according to a priority relation corresponding to the application process, wherein the scheduling configuration information is used for indicating a scheduling proportion of remote control application data corresponding to the application process;

transmitting the remote control segment containing different receiving address pointers to a transmission layer;

creating a virtual channel, and determining the channel number of the virtual channel corresponding to the application process according to the scheduling configuration information; and

and allocating the virtual channels corresponding to the application process according to the determined number of the channels.

2. The method of claim 1, wherein the operation of allocating a virtual channel corresponding to the application process according to the determined number of channels comprises: for a first application process with the number of channels greater than 1, transmitting a remote control transmission frame corresponding to the first application process through a plurality of virtual channels.

3. The method of claim 1, wherein the operation of allocating a virtual channel corresponding to the application process according to the determined number of channels comprises: and for a second application process with the number of channels less than 1, sending a remote control transmission frame corresponding to the second application process in a manner of sharing the same virtual channel with other application processes.

4. The method of claim 1, wherein generating the operation of the remote control segment corresponding to the application process comprises:

reading an application process identification field of the remote control packet, and determining the application process corresponding to the remote control packet according to the application process identification field;

determining a receiving address pointer corresponding to the remote control packet according to the determined application process; and

and generating the remote control segment according to the determined receiving address pointer.

5. The method of claim 4, wherein determining scheduling configuration information associated with the application process comprises:

accessing a preset priority configuration table, and determining a priority parameter corresponding to the application process according to the priority configuration table; and

determining the scheduling configuration information according to the priority parameter, and wherein,

determining the operation of the scheduling configuration information according to the priority parameter, including: and taking the ratio of the scores corresponding to the priority parameters as the scheduling configuration information.

6. The method of claim 5, wherein determining the scheduling configuration information according to the priority parameter comprises:

determining a first weight value corresponding to the application process according to the score corresponding to the priority parameter of the application process;

determining the length of remote control application data corresponding to the application process;

determining a weighted data volume corresponding to the application process according to the first weight value and the length of the remote control application data;

determining a second weight value corresponding to the application process according to the weighted data quantity; and

and determining the scheduling configuration information according to the second weight value.

7. The method according to claim 5 or 6, wherein the segmentation layer is further provided with remote control segment queues respectively corresponding to different receiving address pointers, and the operation of transmitting the remote control segment containing different receiving address pointers to the transmission layer according to the proportional relationship indicated by the scheduling configuration information comprises:

inputting the remote control segment to a corresponding remote control segment queue according to a receiving address pointer contained in the remote control segment; and

respectively obtaining the remote control segments from the remote control segment queues corresponding to different receiving address pointers according to the proportional relation indicated by the scheduling configuration information, and sequentially transmitting the obtained remote control segments to the transmission layer, wherein

The method further comprises the following steps:

receiving the remote control segments from the segmentation layer and generating corresponding remote control transmission frames in sequence; and

and sequentially allocating the remote control transmission frames to corresponding virtual channels.

8. A storage medium, characterized in that the storage medium comprises a stored program, wherein

The method of any one of claims 1 to 7 being performed by a processor when the program is run.

9. An apparatus for scheduling virtual channels based on a segmentation layer, for a satellite terrestrial system, comprising:

the remote control package generation module is used for receiving remote control application data corresponding to an application process deployed on the spacecraft and generating remote control packages respectively corresponding to the application process;

a remote control segment generation module, configured to receive the remote control packet and generate a remote control segment corresponding to the application process, where the remote control segment includes a receiving address pointer corresponding to the application process;

the scheduling configuration information determining module is used for determining scheduling configuration information related to the application process according to the receiving address pointer, wherein the scheduling configuration information is used for indicating a scheduling proportion of remote control application data corresponding to the application process;

the remote control segment transmission module is used for transmitting the remote control segments containing different receiving address pointers to the transmission layer;

a channel number determining module, configured to create a virtual channel, and determine, according to the scheduling configuration information, a channel number of the virtual channel corresponding to the application process; and

and the virtual channel allocation module is used for allocating the virtual channels corresponding to the application process according to the determined channel quantity.

10. An apparatus for scheduling virtual channels based on a segmentation layer, for a satellite terrestrial system, comprising:

a processor; and

a memory coupled to the processor for providing instructions to the processor for processing the following processing steps:

determining scheduling configuration information related to the application process according to the received address pointer, wherein the scheduling configuration information is used for indicating a scheduling proportion of remote control application data corresponding to the application process;