CN110365450A - Spaceborne high speed adj sp data transmission interface and transmission method - Google Patents
Spaceborne high speed adj sp data transmission interface and transmission method Download PDFInfo
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- CN110365450A CN110365450A CN201910749966.8A CN201910749966A CN110365450A CN 110365450 A CN110365450 A CN 110365450A CN 201910749966 A CN201910749966 A CN 201910749966A CN 110365450 A CN110365450 A CN 110365450A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
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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
- H04B7/18513—Transmission in a satellite or space-based system
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- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The present invention provides a kind of spaceborne high speed adj sp data transmission interfaces, including high-speed data transmitting terminal and high-speed data receiving end, the high-speed data transmitting terminal transmits data to high-speed data receiving end by three classes data-interface signal, and the three classes data-interface signal is gate-control signal, clock signal and data-signal；The gate-control signal is the signal for controlling data-signal on-off, and the clock signal is the signal for controlling message transmission rate speed, and the data-signal is the effective information data of transmission.The present invention is using three classes interface signals such as clock, data, gates, by adjusting the mode of the duty when data bit width of gate-control signal, realize the adj sp transmission of high-speed data between spaceborne each system, between data rate adjusting range 0 and 16 times clock frequency, solves the problems, such as the adjustable data adaptive matching transmission of high speed between spaceborne not homologous ray.
Description
Technical field
The present invention relates to spaceborne technical field of data transmission, and in particular, to spaceborne high speed adj sp data transmission connects
Mouth and transmission method.
Background technique
In each system work process of satellite load, according to the operating mode of load, it is not true for being formed by data rate
The case where fixed administration's system, presentation changes in a certain range.To adapt to the characteristic that load forms changes in data rate, need to design
The data transmission interface of variable bit rate in a certain range is convenient for the adaptive reliable transmission of data rate and processing.
By the retrieval to the prior art, patent of invention one kind that application publication number is 105099504 A of CN is based on pulse
The spaceborne high speed data network system of ultra wide band, comprising: spaceborne data subsystem, payload subsystem, satellite data bus；
Spaceborne data subsystem is connected in satellite data bus；The payload subsystem include effective load management device and effectively
Load, payload manager therein are also connect with satellite data bus；Payload manager and payload pass through nothing
Gauze network carries out data transmission；The payload manager is under the order of spaceborne data subsystem, control and management satellite
The upper payload for carrying out scientific experiment and space exploration, be responsible for the data sampling and processing of the payload, storage,
Comprehensive transmission and data management；It can be adopted between payload manager and payload by the communication that wireless network is realized
Communication pattern includes: WBC-to-WRT mode, broadcast mode, WRT-to-WBC mode and WRT-to-WRT mode.It should
Spaceborne high speed data network system cannot achieve the adj sp transmission of high-speed data between spaceborne each system, to can not solve
Between spaceborne not homologous ray the problem of high-speed data matching transmission.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of spaceborne high speed adj sp data transmission to connect
Mouth and transmission method.
A kind of spaceborne high speed adj sp data transmission system provided according to the present invention, including high-speed data transmitting terminal and
High-speed data receiving end, the high-speed data transmitting terminal transmit number to high-speed data receiving end by three classes data-interface signal
According to the three classes data-interface signal is gate-control signal, clock signal and data-signal；The gate-control signal is control data letter
The signal of number on-off, the clock signal are the signal for controlling message transmission rate speed, and the data-signal be having of transmitting
Imitate information data.
Further, the high-speed data transmitting terminal include gate-control signal control module, clock signal generating module and
Data-signal output module, the high-speed data receiving end include gate-control signal receiving module, clock signal receiving module and
Data signal reception module, high-speed data transmitting terminal and high-speed data receiving end are by transmission cable according to the correspondence of three kinds of modules
Relationship connection.
Further, the gate-control signal is the enabled of high-speed data transmitting terminal and high-speed data receiving end data receiver
Signal, characterization has data output when low level, characterization no data output when high level；By adjusting low level/high level number
Value, realize high speed between spaceborne each system can adjusting data transmission.
Further, whether the high-speed data transmitting terminal is effective according to data, determines the level height of gate-control signal, institute
When stating the booting of high-speed data transmitting terminal, it is in high level state.
Further, it after high-speed data transmitting terminal forms high-speed data, is transmitted by the data signal interfaces, high speed
The digit of data-signal is according to transmission rate requirements energy parallel-expansion.
Further, the clock signal is exported by high-speed data transmitting terminal, and clock signal frequency is fixed, and clock signal connects
It is continuous, need to send the flank speed of data according to high-speed data transmitting terminal and parallel-expansion digit to choose clock signal frequency big
Small, the precision and Stability index of clock meet the needs of high speed data transfer.
Further, the gate-control signal, clock signal and data-signal are convenient in high-speed data transmitting terminal close alignment
High-speed data receiving end is properly received.
Further, the gate-control signal, clock signal and data-signal high-speed data transmitting terminal synchronization accuracy not
Greater than the 10% of the clock cycle, in high-speed data receiving end, the gate-control signal, clock signal and data-signal have synchronous essence
Degree is not more than the 15% reception ability of clock cycle.
The present invention also provides a kind of spaceborne high speed adj sp data transmission methods, using above-mentioned spaceborne high speed adj sp
Data transmission interface, comprising the following steps:
S1, determine that high-speed data transmitting terminal and high-speed data receiving end need transmitted data rates range；
S2, the upper limit that transmitted data rates range is needed according to high-speed data transmitting terminal and high-speed data receiving end, tentatively
Choose and determine the parallel digit of high-speed data signal；By the way that different data parallel digits is arranged, high speed adj sp is realized
Data transmission；
S3, it is tentatively chosen according to high-speed data transmitting terminal and high-speed data receiving end and determines the parallel of high-speed data signal
Digit determines the frequency of clock signal, can suitably there are engineering allowances；By choosing different clock signal frequencies, realize high
Fast adj sp data transmission；
S4, gate-control signal is selected, when data sending terminal generates data or when data accumulation is to specified quantity, gate-control signal
Effectively, data start to transmit；Otherwise it is transmitted without data；Gate-control signal is high-speed data transmitting terminal and high-speed data receiving end
The enable signal of data receiver, characterization has data output when low level, characterization no data output when high level；By adjusting low electricity
The numerical value of flat/high level realizes spaceborne realization high speed adj sp data transmission.
Further, the step S2 and step S3 interchangeable sequence.
Compared with prior art, the present invention have it is following the utility model has the advantages that
1, the spaceborne high speed adj sp data transmission interface of the present invention, using the three classes data-interface such as clock, data, gate
Signal, interface form are fixed, and are designed convenient for each system, each single machine unified standard；
2, the spaceborne high speed adj sp data transmission interface of the present invention is realized by adjusting the mode of data-signal bit wide
The adj sp transmission of high-speed data between spaceborne each system, (low rate clock can continue 0-16 times of data rate adjusting range
Extension) between clock frequency, solve the problems, such as high-speed data matching transmission between spaceborne not homologous ray.
3, the spaceborne high speed adj sp data transmission interface of the present invention, by adjusting the mode of the duty ratio of gate-control signal,
Realize the adj sp transmission of high-speed data between spaceborne each system, data rate adjusting range is to be not transmitted to highest to transmit number
Between, solves the problems, such as high-speed data matching transmission between spaceborne not homologous ray.Simultaneously by adjusting the method for gate-control signal
Carry out data transmission data between can be used as multisystem and transmits time-multiplexed solution.
4, the spaceborne high speed adj sp data transmission interface of the present invention, using the three classes data-interface such as clock, data, gate
Signal, by adjusting the mode of the duty when data bit width of gate-control signal, that realizes high-speed data between spaceborne each system can
Speed change rate transmission between data rate adjusting range 0-16CLK, solves high-speed data matching transmission between spaceborne not homologous ray
Problem.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is data-interface signal type schematic diagram in the spaceborne high speed adj sp data transmission system of the present invention；
Fig. 2 is data-interface signal timing diagram in the spaceborne high speed adj sp data transmission system of the present invention.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
The present invention provides a kind of spaceborne high speed adj sp data transmission system.The present invention is using clock, data, gate etc.
Three classes interface signal realizes high speed between spaceborne each system by adjusting the mode of the duty when data bit width of gate-control signal
The adj sp of data transmits, and between data rate adjusting range 0-16CLK, solves high-speed data between spaceborne not homologous ray
The problem of with transmission.
Next to most further detailed description of the invention.
As depicted in figs. 1 and 2, for the transmission plan is described in detail, definition Flag is gate-control signal, to receive and dispatch two end signals
Effective previously arranged signal, T0 be system boot to data stabilization output the time, T1 low-level data is effective, T2 high level data without
Effect；Definition CLK is clock signal；Definition Data is data-signal；Definition LVDS interface is Low Voltage Differential Signaling signal.
Embodiment
A kind of spaceborne high speed adj sp data transmission interface provided by the invention, including high-speed data transmitting terminal and high speed
Data receiver, high-speed data transmitting terminal transmit data, three classes number to high-speed data receiving end by three classes data-interface signal
It is gate-control signal, clock signal and data-signal according to interface signal；Gate-control signal is the signal for controlling data-signal on-off, clock
Signal is the signal for controlling message transmission rate speed, and data-signal is the effective information data of transmission.
High-speed data transmitting terminal includes gate-control signal control module, clock signal generating module and data-signal output mould
Block, high-speed data receiving end include gate-control signal receiving module, clock signal receiving module and data signal reception module, height
Fast data sending terminal is connected by transmission cable according to the corresponding relationship of three kinds of modules with high-speed data receiving end.
In the present embodiment, using LVDS interface, real-time Data Transmission rate can adjust between 0-1600Mbps, and data connect
Mouth uses three-wire system, and three classes data-interface signal is gate-control signal, clock signal and data-signal.
Gate-control signal is the enable signal of high-speed data transmitting terminal and high-speed data receiving end data receiver, high-speed data
Whether transmitting terminal is effective according to data, determines the level height of gate-control signal, when high-speed data transmitting terminal is switched on, is in high level
State.General T0 is greater than 10us or more, and characterization has data output when T1 low level, characterization no data output when T2 high level；It is logical
Cross the numerical value of adjustment T1/T2, realize high speed between spaceborne each system can adjusting data transmission, T1 can long-term low level it is effective, at this time
Data continuously transmit；T2 can long-term high level it is effective, no data transmits between system at this time.
It after high-speed data transmitting terminal forms high-speed data, is transmitted by data signal interfaces, data rate is alterable；
The digit of Data data-signal is designed as 16bit parallel transmission according to transmission rate requirements.
Clock signal is exported by high-speed data transmitting terminal, and clock signal frequency is fixed, and the present embodiment is designed as 100MHz, when
Clock signal is continuous, and clock duty cycle is 45%~55%, and clock signal size can be extended according to transmission of signal-type；According to output
End needs to send the flank speed of data and parallel-expansion digit chooses clock signal frequency size, the precision and stability of clock
Index meets the needs of high speed data transfer.
Gate-control signal Flag, clock signal clk and data-signal Data are in high-speed data transmitting terminal close alignment, convenient for height
Fast data receiver is properly received.Gate-control signal Flag, clock signal clk and data-signal Data are in high-speed data transmitting terminal
Synchronization accuracy is not more than the 10% of clock cycle, in high-speed data receiving end, gate-control signal Flag, clock signal clk and data
The 15% reception ability that there is signal Data synchronization accuracy to be not more than the clock cycle.
The present invention also provides a kind of spaceborne high speed adj sp data transmission methods, using above-mentioned spaceborne high speed adj sp
Data transmission interface, comprising the following steps:
S1, determine that high-speed data transmitting terminal and high-speed data receiving end need transmitted data rates range；
S2, the upper limit that transmitted data rates range is needed according to high-speed data transmitting terminal and high-speed data receiving end, tentatively
Choose and determine the parallel digit of high-speed data signal；By the way that different data parallel digits is arranged, high speed adj sp is realized
Data transmission；
S3, it is tentatively chosen according to high-speed data transmitting terminal and high-speed data receiving end and determines the parallel of high-speed data signal
Digit determines the frequency of clock signal, can suitably there are engineering allowances；By choosing different clock signal frequencies, realize high
Fast adj sp data transmission；
S4, gate-control signal is selected, when data sending terminal generates data or when data accumulation is to specified quantity, gate-control signal
Effectively, data start to transmit；Otherwise it is transmitted without data；Gate-control signal is high-speed data transmitting terminal and high-speed data receiving end
The enable signal of data receiver, characterization has data output when low level, characterization no data output when high level；By adjusting low electricity
The numerical value of flat/high level realizes spaceborne realization high speed adj sp data transmission.
Wherein, the step S2 and step S3 interchangeable sequence.
In the description of the present application, it is to be understood that term " on ", "front", "rear", "left", "right", " is erected at "lower"
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is orientation based on the figure or position
Relationship is set, description the application is merely for convenience of and simplifies description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
One skilled in the art will appreciate that in addition to realizing system provided by the invention in a manner of pure computer readable program code
It, completely can be by the way that method and step be carried out programming in logic come so that provided by the invention other than system, device and its modules
System, device and its modules are declined with logic gate, switch, specific integrated circuit, programmable logic controller (PLC) and insertion
The form of controller etc. realizes identical program.So system provided by the invention, device and its modules may be considered that
It is a kind of hardware component, and the knot that the module for realizing various programs for including in it can also be considered as in hardware component
Structure；It can also will be considered as realizing the module of various functions either the software program of implementation method can be Hardware Subdivision again
Structure in part.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (10)
1. a kind of spaceborne high speed adj sp data transmission interface, which is characterized in that including high-speed data transmitting terminal and high speed number
According to receiving end, the high-speed data transmitting terminal transmits data to high-speed data receiving end by three classes data-interface signal, described
Three classes data-interface signal is gate-control signal, clock signal and data-signal；
The gate-control signal is the signal for controlling data-signal on-off, and the clock signal is control message transmission rate speed
Signal, the data-signal are the effective information data of transmission.
2. spaceborne high speed adj sp data transmission interface according to claim 1, which is characterized in that the high-speed data
Transmitting terminal includes gate-control signal control module, clock signal generating module and data-signal output module, the high-speed data
Receiving end includes gate-control signal receiving module, clock signal receiving module and data signal reception module, and high-speed data is sent
End is connected by transmission cable according to the corresponding relationship of three kinds of modules with high-speed data receiving end.
3. spaceborne high speed adj sp data transmission interface according to claim 1, which is characterized in that the gate-control signal
For the enable signal of high-speed data transmitting terminal and high-speed data receiving end data receiver, characterization has data output when low level, high
No data output is characterized when level；By adjusting low level/high level numerical value, high speed can adjusting data between realizing spaceborne each system
Transmission.
4. spaceborne high speed adj sp data transmission interface according to claim 3, which is characterized in that the high-speed data
Whether transmitting terminal is effective according to data, the level height of gate-control signal is determined, when the high-speed data transmitting terminal is switched on, in height
Level state.
5. spaceborne high speed adj sp data transmission interface according to claim 1, which is characterized in that when high-speed data is sent out
After sending end forms high-speed data, transmitted by the data signal interfaces, the digit of high-speed data signal is according to transmission rate need
Asking can parallel-expansion.
6. spaceborne high speed adj sp data transmission interface according to claim 1, which is characterized in that the clock signal
It is exported by high-speed data transmitting terminal, clock signal frequency is fixed, and clock signal is continuous, needs to send according to high-speed data transmitting terminal
The flank speed and parallel-expansion digit of data choose clock signal frequency size, and the precision and Stability index of clock meet number
According to the demand of high-speed transfer.
7. spaceborne high speed adj sp data transmission interface according to claim 1, which is characterized in that the gate letter
Number, clock signal and data-signal in high-speed data transmitting terminal close alignment, be properly received convenient for high-speed data receiving end.
8. spaceborne high speed adj sp data transmission interface according to claim 1, which is characterized in that the gate letter
Number, clock signal and data-signal in the synchronization accuracy of high-speed data transmitting terminal be not more than the 10% of the clock cycle, in high speed number
According to receiving end, there is 15% of synchronization accuracy no more than the clock cycle to connect for the gate-control signal, clock signal and data-signal
Receipts ability.
9. a kind of transmission method of spaceborne high speed adj sp data, which is characterized in that using any one of claim 1 to 8 institute
The spaceborne high speed adj sp data-interface stated, comprising the following steps:
S1, determine that high-speed data transmitting terminal and high-speed data receiving end need transmitted data rates range；
S2, the upper limit that transmitted data rates range is needed according to high-speed data transmitting terminal and high-speed data receiving end, it is preliminary to choose
And determine the parallel digit of high-speed data signal；By the way that different data parallel digits is arranged, high speed adj sp data are realized
Transmission；
S3, the parallel position for tentatively choosing and determining high-speed data signal according to high-speed data transmitting terminal and high-speed data receiving end
Number, determines the frequency of clock signal；By choosing different clock signal frequencies, the transmission of high speed adj sp data is realized；
S4, gate-control signal is selected, when data sending terminal generates data or when data accumulation is to specified quantity, gate-control signal has
Effect, data start to transmit；Otherwise it is transmitted without data；Gate-control signal is high-speed data transmitting terminal and high-speed data receiving end number
According to received enable signal, characterization has data output when low level, characterization no data output when high level；By adjusting low electricity
The numerical value of flat/high level realizes spaceborne realization high speed adj sp data transmission.
10. the transmission method of spaceborne high speed adj sp data according to claim 9, which is characterized in that the step
S2 and step S3 interchangeable sequence.
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| CN110365450B (en) | 2021-12-07 |
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