CN110474670A - A kind of spaceborne Network service quality control system of SpaceFibre based on FPGA - Google Patents
A kind of spaceborne Network service quality control system of SpaceFibre based on FPGA Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18515—Transmission equipment in satellites or space-based relays
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/50—Queue scheduling
- H04L47/62—Queue scheduling characterised by scheduling criteria
- H04L47/625—Queue scheduling characterised by scheduling criteria for service slots or service orders
- H04L47/6275—Queue scheduling characterised by scheduling criteria for service slots or service orders based on priority
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Abstract
The invention discloses a kind of spaceborne Network service quality control systems of SpaceFibre based on FPGA, include: multichannel virtual channel flow control module and single channel media access controller, multiple priority computing modules and a scheduler module are set in the media access controller；Virtual channel flow control module is used to receive the data of virtual channel, generates data sending request；It is also used to when receiving the transmission enable signal of media access controller, sends the data segment and data word count value that buffer area exports to media access controller；Priority computing module is for calculating priority and being sent to scheduler module；Scheduler module is used to carry out sorting in parallel to the priority received, and scheduled virtual channel is selected in all virtual channels according to ranking results；And data enable signal is sent to the scheduled corresponding virtual channel flow control module transmitting of virtual channel；The data segment that the number of the scheduled virtual channel of output and the buffer area of corresponding virtual channel flow control module export.
Description
Technical field
The present invention relates to spacecraft very high-speed data transfer network technique fields, and in particular to a kind of based on FPGA's
The spaceborne Network service quality control system of SpaceFibre.
Background technique
The birth of the high speeds payload such as synthetic aperture radar and multi-spectral imager is to Satellite Payloads communication system
The speed of data processing proposes higher demand.Existing bus standard SpaceWire has been unable to satisfy this demand.For
This problem, University of Dundee cooperate to propose ultrahigh speed serially spaceborne data link SpaceFibre technology with ESA.
University of Dundee, Britain is completed the exploitation of the SpaceFibre codec IP kernel with complete function and tests at present
Card will enter the application stage of model task.In addition, the country such as Russia, Germany and Sweden has also carried out SpaceFibre
The development of related IP kernel, but the design of few SpaceFibre IP kernels and realization work at home.Exploitation has autonomous
The SpaceFibre IP kernel of intellectual property has great importance to the further development of China's spacecraft Integrated Electronic System.
The main feature of SpaceFibre first is that its integrated service quality (Quality of Service, QoS).It should
Mechanism is while reducing entire engineering cost, to simplify the difficulty of establishment and the spaceborne data network of test by hard-wired
Degree.When several payload datas request to send data simultaneously through virtual channel, service quality control has link bandwidth
Effect is vital using playing the role of, it is seen that the realization of service quality control is that SpaceFibre codec IP kernel is realized
It is crucial.But the country only rests on the conceptual phase of dispatching algorithm to SpaceFibre Service Quality quantifier elimination at present, does not carry out
Actual application.
Summary of the invention
It is an object of the invention to guarantee in the spaceborne network of SpaceFibre the reliable of a large amount of real-time streams in the short time
Transmission, for SpaceFibre key component flow control and service quality, it is spaceborne to design a kind of SpaceFibre based on FPGA
Network service quality control system.
To achieve the goals above, the invention proposes a kind of spaceborne network service qualities of the SpaceFibre based on FPGA
Control system, the system comprises: multichannel virtual channel flow control module and single channel media access controller are visited in the medium
It asks and multiple priority computing modules and a scheduler module is set on controller；Wherein, a priority computing module corresponding one
A virtual channel flow control module；
The virtual channel flow control module deposits data using buffer area for receiving the data of virtual channel
It stores up, generate data sending request and send it to media access controller；It is also used to work as and receives media access controller
When sending enable signal, the data segment and data word count value that buffer area exports are sent to media access controller；
The priority computing module, for receiving the data word count value of virtual channel flow control module transmission, in conjunction with
The management layer parameter that host computer is sent calculates priority and is sent to scheduler module；
The scheduler module, for receiving the data sending request and buffer area output of the transmission of virtual channel flow control module
Data segment；For carrying out sorting in parallel to the priority received, hair is selected in all virtual channels according to ranking results
Data sending request, current time slots is sent to allow scheduling, the highest virtual channel of priority as scheduled virtual channel；And to
The corresponding virtual channel flow control module transmitting of scheduled virtual channel sends data enable signal；Output is scheduled virtual
The data segment that the number in channel and the buffer area of corresponding virtual channel flow control module export.
As a kind of improvement of above system, the virtual channel flow control module includes: receiving submodule, FIFO buffering
Area, sends data counts submodule, flow control credit submodule and sending submodule at storage control submodule；
The receiving submodule, for receiving the number, the payload character data of virtual channel and stream of virtual channel
Control instruction；
The fifo buffer, for storing the payload character data of virtual channel in the form of data word；
The storage control submodule, for controlling the storage format of payload data；For in link reset time control
The reset mode of payload data processed；For generating data sending request；It is also used to work as and receives media access controller
When sending enable signal, control fifo buffer exports virtual channel data word；
The transmission data counts submodule, for fifo buffer export virtual channel data when, to data word into
Row counts, output data word count value；And when sending complete data segment, counts and reset；
The flow control credit submodule, for being generated according to the flow control instructions and transmission data count module that receive
Count value, update FCT credit counter value；
The sending submodule, for the data segment of data sending request, fifo buffer output to be sent to scheduling mould
Data word count value is sent to priority computing module by block；
As a kind of improvement of above system, the storage control submodule includes: element word storage, link reset list
Member, data sending request generation unit and output control unit；
The element word storage, for payload data character to be stored in fifo buffer by word address；
The link reset unit, for emptying the data word stored in fifo buffer in link reset；It is also used to
When link reset and when the data character from payload is not EOP/EEP Fill control character, all new words are removed
Symbol is until next EOP/EEP control character；
The data sending request generation unit, for that will generate data sending request and send it to medium access control
Device processed；The condition for generating data sending request are as follows: include if the value of FCT credit counter is greater than in 0 and fifo buffer
Complete data segment；Refer in output virtual channel buffer area comprising complete data segment comprising EEP/ in the fifo buffer
EOP command character word includes 64 data words；
The output control unit, for controlling FIFO when receiving the transmission enable signal of media access controller
Buffer area exports virtual channel data word.
As a kind of improvement of above system, the priority computing module includes: bandwidth credit computing unit, priority
Priority computing unit and priority computing unit；
The bandwidth credit computing unit, for calculating the bandwidth credit of each virtual channel using incremental mode:
Scheduled virtual channel bandwidth credit increment Delta BWCredit [c] are as follows:
Wherein, c is scheduled virtual channel number, and u is in the data segment of virtual channel c transmission comprising data word
Number；NorExpBW [c] is accounted for the ratio of link total bandwidth by the virtual channel c bandwidth distributed；
The not bandwidth credit increment Delta BWCredit [c'] of scheduled virtual channel c ' are as follows:
Δ BWCredit [c']=u；
Then the bandwidth credit BWCredit of each virtual channel be original bandwidth credit and bandwidth credit increment and；Often
The initial bandwidth credit of a virtual channel is 0；
The priorities computing unit, for calculating the priorities PriPre of each virtual channel；
PriPre=2B (Q-1-R)+B
Wherein, wherein B indicates bandwidth credit limitation, and Q is the priority number that SpaceFibre is supported, R indicates current empty
Quasi- channel priorities are other；One port SpaceFibre at least includes 4 priority, at most includes Q priority；Priority is compiled
Number by 0 to Q-1, wherein 0 highest priority of number；The management layer parameter include: bandwidth credit limitation, bandwidth credit threshold value,
Virtual channel standardizes desired bandwidth, virtual channel priority-level, time slot allocation and free time limitation；
The priority computing unit: for calculating the priority Precedence of virtual channel according to the following formula:
Precedence=PriPre+BWCredit.
As a kind of improvement of above system, the scheduler module includes: that time slot updates state machine, dispatch list and arbitration
Unit；
The time slot updates state machine, for when new time slot arrives and still has not sent complete data segment in a upper time slot
When, the update of new time slot is carried out after not sent complete data segments all in a upper time slot are sent again；
The dispatch list, for storing each virtual channel in the scheduling information of corresponding time slot；The scheduling information includes
Whether timeslot number, the number of virtual channel and each virtual channel can be scheduled in corresponding timeslot number；If can dispatch, adjusting
Spending position of the virtual channel in current time slots number in table is 1, is otherwise 0；
The arbitration unit includes: sorting in parallel subelement and the enabled subelement of transmission；
The sorting in parallel subelement, the priority for exporting each priority computing module carry out sorting in parallel, hair
It send to the enabled subelement of transmission；
It is described to send enabled subelement, for after receiving ranking results, in conjunction with dispatch list and virtual channel flow control
The data sending request of module selects current time slots to allow to dispatch, the highest virtual channel of priority in all virtual channels
As scheduled virtual channel；And data enable signal is sent to scheduled virtual channel transmitting；The scheduled void of output
The data segment of fifo buffer output in the number and corresponding virtual channel flow control module in quasi- channel.
As a kind of improvement of above system, the detailed process of the parallel comparative sorting are as follows:, will when clock is along arrival
The priority of each virtual channel is compared with the priority of non-virtual channel respectively, and comparison result is recorded in score
In；If the priority value of this virtual channel is larger, the priority of this virtual channel is scored at 1；If two virtual channels is excellent
First weigh it is equal, then the lesser priority score of virtual channel number be 1；If the priority of this virtual channel is smaller, this is virtual logical
Road priority is scored at 0；It finally adds up to the priority score of each virtual channel, accumulation result is the big of each priority
Small sequence.
Present invention has an advantage that
1, system of the invention realizes complete single channel SpaceFibre service quality control function, has ensured network
The stability carried out data transmission；
2, system of the invention accelerates reading data using the payload data of data word form storage character style
Speed；
3, system of the invention uses incremental mode computation bandwidth credit, updates operation and bandwidth credit convenient for bandwidth credit
The hardware realization of operated in saturation.
4, system of the invention compares priority using parallel comparative approach, improves system operational speed.
Detailed description of the invention
Fig. 1 is the composition figure of the spaceborne Network service quality control system of the SpaceFibre of the invention based on FPGA；
Fig. 2 is the format that word of the invention stores.
Specific embodiment
Technical solution of the present invention is described in detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, the present invention provides a kind of spaceborne Network service quality control systems of SpaceFibre based on FPGA
System, which includes: four tunnel virtual channel flow control modules and single channel media access controller.
In the present embodiment, it is illustrated with four tunnel virtual channel flow control modules, but is not intended to limit four circuit-switched datas.
Each virtual channel flow control module includes: receiving submodule, fifo buffer, storage control submodule, sends
Data counts submodule, flow control credit submodule and sending submodule；
Receiving submodule, for receiving the number, the payload character data of virtual channel and flow control of virtual channel
Instruction；
Fifo buffer, for storing the payload character data of virtual channel in the form of data word；
Control submodule is stored, for controlling the storage format of payload data；For being formed in link reset time control
Imitate the reset mode of load data；For generating data sending request；It is also used to when the transmission for receiving media access controller
When enable signal, control fifo buffer exports virtual channel data word；
Storing control submodule includes: element word storage, link reset unit, data sending request generation unit and output
Control unit；
Element word storage, for payload data character to be stored in fifo buffer by word address；
Link reset unit, for emptying the data word stored in fifo buffer in link reset；It is also used to work as chain
When road resets and the data character from payload is not EOP/EEP Fill control character, it is straight to remove all fresh characters
To next EOP/EEP control character；
Data sending request generation unit, for that will generate data sending request and send it to medium access control
Device；The condition for generating data sending request are as follows: included if the value of FCT credit counter is greater than in 0 and fifo buffer
Whole data segment；Refer in output virtual channel buffer area comprising complete data segment comprising EEP/ in the fifo buffer
EOP command character word includes 64 data words；
Output control unit, for when receiving the transmission enable signal of media access controller, control FIFO to be buffered
Area exports virtual channel data word.
Data counts submodule is sent, for being counted to data word when fifo buffer exports virtual channel data
Number, output data word count value；And when sending complete data segment, counts and reset；
Flow control credit submodule, based on being generated according to the flow control instructions and transmission data count module that receive
Numerical value updates FCT credit counter value；
The sending submodule, for the data segment of data sending request, fifo buffer output to be sent to scheduling mould
Data word count value is sent to priority computing module by block；
It is corresponding to send buffer area output data section and hair when receiving the transmission enable signal of media access controller
Send data word count signal.
Media access controller includes: four priority computing modules and scheduler module.Four priority computing modules point
It Dui Ying not four output virtual channel flow control modules.Each priority computing module include: priorities computing unit,
Bandwidth credit computing unit and priority computing unit.
Media access controller reads each virtual channel from output virtual channel flow control module and sends request, virtual channel
The parameters such as data word, virtual channel data word count, and these parameters are transmitted to the corresponding priority of virtual channel and calculate mould
Block.
The priority computing module includes: bandwidth credit computing unit, priorities computing unit and priority
Computing unit；
The bandwidth credit computing unit, for calculating the bandwidth credit of each virtual channel using incremental mode:
Scheduled virtual channel bandwidth credit increment Delta BWCredit [c] are as follows:
Wherein, c is scheduled virtual channel number, and u is in the data segment of virtual channel c transmission comprising data word
Number；NorExpBW [c] is accounted for the ratio of link total bandwidth by the virtual channel c bandwidth distributed；
The not bandwidth credit increment Delta BWCredit [c'] of scheduled virtual channel c ' are as follows:
Δ BWCredit [c']=u；
Then the bandwidth credit BWCredit of each virtual channel be original bandwidth credit and bandwidth credit increment and；Often
The initial bandwidth credit of a virtual channel is 0；
The priorities computing unit, for calculating the priorities PriPre of each virtual channel；
PriPre=2B (Q-1-R)+B
Wherein, wherein B indicates bandwidth credit limitation, and Q is the priority number that SpaceFibre is supported, R indicates current empty
Quasi- channel priorities are other；One port SpaceFibre at least includes 4 priority, at most includes Q priority；Priority is compiled
Number by 0 to Q-1, wherein 0 highest priority of number；The management layer parameter include: bandwidth credit limitation, bandwidth credit threshold value,
Virtual channel standardizes desired bandwidth, virtual channel priority-level, time slot allocation and free time limitation；
The priority computing unit: for calculating the priority Precedence of virtual channel according to the following formula:
Precedence=PriPre+BWCredit.
Scheduler module includes: arbitration unit, time slot update state machine and dispatch list；
Time slot updates state machine, will be upper when arriving for new time slot and still having not sent complete data segment in a upper time slot
All not sent complete data segments carry out the update of new time slot again in one time slot after being sent；
The dispatch list, for storing each virtual channel in the scheduling information of response time slot；The scheduling information includes
Whether timeslot number, the number of virtual channel and each virtual channel can be scheduled in corresponding timeslot number；If can dispatch, the void
Quasi- position of the channel in current time slots number is 1；It otherwise is 0；
Arbitration unit includes: sorting in parallel subelement and sends enabled subelement:
Sorting in parallel subelement, the priority data for exporting each priority computing module carry out sorting in parallel, hair
It send to the enabled subelement of transmission；
Enabled subelement is sent, for after receiving ranking results, in conjunction with dispatch list and virtual channel flow control module
The request of data of transmission, selected in all virtual channels current time slots allow dispatch, the highest virtual channel of priority as
Scheduled virtual channel；And data enable signal is sent to scheduled virtual channel transmitting；Output is scheduled virtual logical
Data segment in the number in road and corresponding virtual channel.
The basic ideas of parallel comparative sorting are as follows in invention.When clock is along arrival, the priority of each virtual channel
It is all compared with the priority of non-virtual channel and comparison result is recorded in score.If the priority of this virtual channel
Numerical value is larger, then the priority of this virtual channel is scored at 1；If the priority of two virtual channels is equal, virtual channel number compared with
Small priority score is 1；If the priority of this virtual channel is smaller, this virtual channel priority is scored at 0.Finally to each
The priority score of virtual channel adds up, and accumulation result is the size order of each priority.
In the initial state, the bandwidth credit initial value of each virtual channel is 0, so each virtual channel is preferential
Weight is equal to priorities value.At this point, when thering is virtual channel to generate transmission request of data and time slot 0 allows to dispatch, it is secondary
Cutting out Unit selection priority maximum, (as priorities are maximum, because bandwidth credit is virtual channel 0), and generate phase
The enable signal answered.Assuming that scheduled at this time is the virtual channel that number is c, then the bandwidth credit of this virtual channel c according to
Δ BWCredit [c] updates the value of bandwidth credit on the basis of 0.Scheduled virtual channel c ' is not according to update Δ
BWCredit [c'] updates the value of bandwidth credit on the basis of 0.
It should be noted last that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although ginseng
It is described the invention in detail according to embodiment, those skilled in the art should understand that, to technical side of the invention
Case is modified or replaced equivalently, and without departure from the spirit and scope of technical solution of the present invention, should all be covered in the present invention
Scope of the claims in.
Claims (6)
1. a kind of spaceborne Network service quality control system of SpaceFibre based on FPGA, which is characterized in that the system packet
Include: multichannel virtual channel flow control module and single channel media access controller are arranged multiple on the media access controller
Priority computing module and a scheduler module；Wherein, the corresponding virtual channel flow control module of a priority computing module
Block；
The virtual channel flow control module stores data using buffer area, is produced for receiving the data of virtual channel
Raw data sending request simultaneously sends it to media access controller；It is also used to make when the transmission for receiving media access controller
When energy signal, the data segment and data word count value that buffer area exports are sent to media access controller；
The priority computing module, for receiving the data word count value of virtual channel flow control module transmission, in conjunction with upper
The management layer parameter that machine is sent calculates priority and is sent to scheduler module；
The scheduler module, for receiving the data sending request of virtual channel flow control module transmission and the number of buffer area output
According to section；Sorting in parallel is carried out to the priority received, is selected to send data hair in all virtual channels according to ranking results
Request, current time slots is sent to allow scheduling, the highest virtual channel of priority as scheduled virtual channel；And to scheduled
The corresponding virtual channel flow control module transmitting of virtual channel sends data enable signal；The volume of the scheduled virtual channel of output
Number and corresponding virtual channel flow control module buffer area export data segment.
2. the spaceborne Network service quality control system of the SpaceFibre according to claim 1 based on FPGA, feature
It is, the virtual channel flow control module includes: receiving submodule, fifo buffer, storage control submodule, sends data
Counting submodule, flow control credit submodule and sending submodule；
The receiving submodule, for receiving the number, the payload character data of virtual channel and flow control of virtual channel
Instruction；
The fifo buffer, for storing the payload character data of virtual channel in the form of data word；
The storage control submodule, for controlling the storage format of payload data；For being formed in link reset time control
Imitate the reset mode of load data；For generating data sending request；It is also used to when the transmission for receiving media access controller
When enable signal, control fifo buffer exports virtual channel data word；
The transmission data counts submodule, for being counted to data word when fifo buffer exports virtual channel data
Number, output data word count value；And when sending complete data segment, counts and reset；
The flow control credit submodule, based on being generated according to the flow control instructions and transmission data count module that receive
Numerical value updates FCT credit counter value；
The sending submodule will for the data segment of data sending request, fifo buffer output to be sent to scheduler module
Data word count value is sent to priority computing module.
3. the spaceborne Network service quality control system of the SpaceFibre according to claim 2 based on FPGA, feature
It is, the storage control submodule includes: element word storage, link reset unit, data sending request generation unit and defeated
Control unit out；
The element word storage, for payload data character to be stored in fifo buffer by word address；
The link reset unit, for emptying the data word stored in fifo buffer in link reset；It is also used to work as chain
When road resets and the data character from payload is not EOP/EEP Fill control character, it is straight to remove all fresh characters
To next EOP/EEP control character；
The data sending request generation unit, for that will generate data sending request and send it to medium access control
Device；The condition for generating data sending request are as follows: included if the value of FCT credit counter is greater than in 0 and fifo buffer
Whole data segment；Refer in output virtual channel buffer area comprising complete data segment comprising EEP/ in the fifo buffer
EOP command character word includes 64 data words；
The output control unit, for when receiving the transmission enable signal of media access controller, control FIFO to be buffered
Area exports virtual channel data word.
4. the spaceborne Network service quality control system of the SpaceFibre according to claim 3 based on FPGA, feature
It is, the priority computing module includes: that bandwidth credit computing unit, priorities computing unit and priority calculate
Unit；
The bandwidth credit computing unit, for calculating the bandwidth credit of each virtual channel using incremental mode:
Scheduled virtual channel bandwidth credit increment Delta BWCredit [c] are as follows:
Wherein, c is scheduled virtual channel number, and u is in the data segment of virtual channel c transmission comprising data word number；
NorExpBW [c] is accounted for the ratio of link total bandwidth by the virtual channel c bandwidth distributed；
The not bandwidth credit increment Delta BWCredit [c'] of scheduled virtual channel c ' are as follows:
Δ BWCredit [c']=u；
Then the bandwidth credit BWCredit of each virtual channel be original bandwidth credit and bandwidth credit increment and；Each void
The initial bandwidth credit in quasi- channel is 0；
The priorities computing unit, for calculating the priorities PriPre of each virtual channel；
PriPre=2B (Q-1-R)+B
Wherein, wherein B indicates bandwidth credit limitation, and Q is the priority number that SpaceFibre is supported, R indicates that current virtual is logical
Road priority level；One port SpaceFibre at least includes 4 priority, at most includes Q priority；Priority number by
0 arrives Q-1, wherein 0 highest priority of number；The management layer parameter includes: bandwidth credit limitation, bandwidth credit threshold value, virtual
Channel standard desired bandwidth, virtual channel priority-level, time slot allocation and free time limitation；
The priority computing unit: for calculating the priority Precedence of virtual channel according to the following formula:
Precedence=PriPre+BWCredit.
5. the spaceborne Network service quality control system of the SpaceFibre according to claim 4 based on FPGA, feature
It is, the scheduler module includes: that time slot updates state machine, dispatch list and arbitration unit；
The time slot updates state machine, will for when new time slot arrives and still has not sent complete data segment in a upper time slot
All not sent complete data segments carry out the update of new time slot again in a upper time slot after being sent；
The dispatch list, for storing each virtual channel in the scheduling information of corresponding time slot；The scheduling information includes time slot
Number, whether the number of virtual channel and each virtual channel can be scheduled in corresponding timeslot number；If can dispatch, in dispatch list
In position of the virtual channel in current time slots number be 1, be otherwise 0；
The arbitration unit includes: sorting in parallel subelement and the enabled subelement of transmission；
The sorting in parallel subelement, the priority for exporting each priority computing module carry out sorting in parallel, are sent to
Send enabled subelement；
It is described to send enabled subelement, for after receiving ranking results, in conjunction with dispatch list and virtual channel flow control module
Data sending request, selected in all virtual channels current time slots allow dispatch, the highest virtual channel of priority as
Scheduled virtual channel；And data enable signal is sent to scheduled virtual channel transmitting；Output is scheduled virtual logical
The data segment of fifo buffer output in the number in road and corresponding virtual channel flow control module.
6. the spaceborne Network service quality control system of the SpaceFibre according to claim 5 based on FPGA, feature
Be, the detailed process of the parallel comparative sorting are as follows: when clock along arrive when, by the priority of each virtual channel respectively with
The priority of non-virtual channel is compared, and comparison result is recorded in score；If the optimum weight number of this virtual channel
It is worth larger, then the priority of this virtual channel is scored at 1；If the priority of two virtual channels is equal, virtual channel number is smaller
Priority score be 1；If the priority of this virtual channel is smaller, this virtual channel priority is scored at 0；Finally to each void
The priority score in quasi- channel adds up, and accumulation result is the size order of each priority.
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| CN111030747A (en) * | 2019-11-22 | 2020-04-17 | 中国科学院国家空间科学中心 | FPGA-based SpaceFibre node IP core |
| CN111404791A (en) * | 2020-03-09 | 2020-07-10 | 西安微电子技术研究所 | Non-blocking reconfigurable SpaceFibre bus crossbar switch and control method |
| CN112383474A (en) * | 2020-10-15 | 2021-02-19 | 中国科学院国家空间科学中心 | Multiport SpaceFibre route IP |
| CN113014465A (en) * | 2021-03-04 | 2021-06-22 | 西安微电子技术研究所 | Bus transmission interface system based on quality of service characteristics and design method |
| CN115102910A (en) * | 2022-08-25 | 2022-09-23 | 沐曦科技(成都)有限公司 | Data transmission method, device, network equipment and computer readable storage medium |
| CN115801100A (en) * | 2022-11-07 | 2023-03-14 | 银河航天(北京)通信技术有限公司 | Method, device and storage medium for remote control-based channel number-to-telemetry scheduling |
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| CN112383474A (en) * | 2020-10-15 | 2021-02-19 | 中国科学院国家空间科学中心 | Multiport SpaceFibre route IP |
| CN113014465A (en) * | 2021-03-04 | 2021-06-22 | 西安微电子技术研究所 | Bus transmission interface system based on quality of service characteristics and design method |
| CN115102910A (en) * | 2022-08-25 | 2022-09-23 | 沐曦科技(成都)有限公司 | Data transmission method, device, network equipment and computer readable storage medium |
| CN115102910B (en) * | 2022-08-25 | 2022-11-18 | 沐曦科技(成都)有限公司 | Data transmission method, device, network equipment and computer readable storage medium |
| CN115801100A (en) * | 2022-11-07 | 2023-03-14 | 银河航天(北京)通信技术有限公司 | Method, device and storage medium for remote control-based channel number-to-telemetry scheduling |
| CN115801100B (en) * | 2022-11-07 | 2023-07-28 | 银河航天(北京)通信技术有限公司 | Remote control-based method for remotely measuring and scheduling channel number apparatus and storage medium |
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