CN209313953U - A kind of spaceborne imaging device data transmission and acquisition system - Google Patents
A kind of spaceborne imaging device data transmission and acquisition system Download PDFInfo
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- CN209313953U CN209313953U CN201822125457.1U CN201822125457U CN209313953U CN 209313953 U CN209313953 U CN 209313953U CN 201822125457 U CN201822125457 U CN 201822125457U CN 209313953 U CN209313953 U CN 209313953U
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Abstract
The utility model provides a kind of spaceborne imaging device data transmission and acquisition system, spaceborne high-resolution imaging equipment, data-interface conversion equipment and data apparatus for acquiring and storing, data-interface conversion equipment includes that TLK2711 receives chip, FPGA unit, USB3.0 transmission chip, output interface and data buffer storage unit, TLK2711 receives chip and receives serial image data by input connector, and completes serial data and unstring；The input terminal of FPGA unit is connect with the TLK2711 output end for receiving chip；Data outputting unit includes USB3.0 transmission chip and output interface, and output interface uses USB3.0 interface；Output interface is connect by transmission cable with output interface.The economic, practical property of the utility model is good, the system can easily carry out data storage without configuring other capture cards in data acquisition storage end, solve the existing transmission of spaceborne imaging device data and acquisition system technical problem at high cost for turning PCIe acquisition card special using Camera-Link.
Description
Technical field
The utility model relates to a kind of spaceborne imaging device data transmission and acquisition systems.
Background technique
Spaceborne high-resolution imaging equipment has efficient, real-time Image Acquisition in ground validation demands and storage is
System, normal image acquisition and the handling capacity wretched insufficiency of storage system, be not able to satisfy full resolution pricture real-time data acquisition and
Storage.If the problems such as not can solve high-resolution, high band wide data transmission, acquisition, storage, can seriously affect it on ground
The adequacy and credibility of Qualify Phase, and then not can guarantee load in space reliability of operation and stability, or even can hinder
Hinder the development of high-resolution imaging technology.Therefore a kind of transmission for spaceborne high speed TLK2711 data-interface, acquisition are designed
It is particularly important with the ground application system of storage, strong technical support can be provided for spaceborne high-resolution imaging technology.
The application of TLK2711 facilitates spaceborne high-resolution imaging data transmission, and exists for spaceborne high-resolution imaging equipment
Ground demonstration Qualify Phase but can not directly establish a connection with acquisition storage computer, and (computer general-purpose interface is simultaneously at present
Without TLK2711 coffret).
Application No. is 2018203539440 Chinese patent application disclose a kind of spaceborne high-resolution imaging data transmission with
Acquisition system, this application carry out turning for data using the conversion circuit of TLK2711 coffret and Camera-Link coffret
It changes, this method needs Camera-Link to turn PCIe acquisition card special, although industrialized Camera-Link Image Acquisition is normal
See that unit price is more expensive.Therefore a kind of general, portable seemed especially based on on-board equipment data transmission acquisition system is provided
It is important.
Summary of the invention
It transmits and adopts to solve the existing spaceborne imaging device data for turning PCIe acquisition card special using Camera-Link
Collecting system technical problem at high cost, the utility model provide a kind of spaceborne imaging device data transmission and acquisition system.
The utility model technical solution is:
A kind of spaceborne imaging device data transmission and acquisition system, including spaceborne high-resolution imaging equipment, data-interface turn
Exchange device and data apparatus for acquiring and storing, the spaceborne high-resolution imaging equipment include TLK2711 transmission chip and and TLK2711
The out connector of transmission chip output end connection, is characterized in that
The data-interface conversion equipment includes input connector, TLK2711 reception chip, FPGA unit, USB3.0 hair
Chip, output interface, data buffer storage unit and power supply and distribution unit are sent,
The TLK2711 receives chip and is connected by input connector and the out connector of spaceborne high-resolution imaging equipment
It connects；
The input terminal of the FPGA unit is connect with the TLK2711 output end for receiving chip；
The FPGA unit includes that data merge logic module and cell fifo, and the data merging logic module is used for will
The data stored in data buffer storage unit merge, and the cell fifo is used to store the data after merging；
The USB3.0 transmission chip and FPGA unit two-way communication, the USB3.0 transmission chip and output interface are mutual
Communication, the output interface use USB3.0 interface；
The data buffer storage unit is connect with FPGA unit, for carrying out data storage；
The power supply and distribution unit TLK2711 receives the power supply of chip, FPGA unit, USB3.0 transmission chip；
The data apparatus for acquiring and storing includes transmission cable and the storage computer with input interface, and the input connects
Mouth is connect by transmission cable with output interface, and the type of the input interface is USB3.0 interface.
Further, the storage computer further includes calculator memory, processing unit and large capacity disc array；It is described
USB3.0 input interface connects calculator memory by bridge；The calculator memory is divided into multiple cache modules, caches mould
The output of block terminates disk array；The disk array is for realizing computer data storage；The processing unit is for controlling
Computer data storage and display.
Further, the out connector and input connector are all made of HSMHK connector.
Further, FPGA model XC7K325T-1FBG900I used by the FPGA unit.
Further, the data buffer storage unit is 2 DDR2 memory device MT47H64M16HR chips,
MT47H64M16HR chip data bit wide 16bit.
Compared with prior art, beneficial effect is the utility model:
1, the economic, practical property of the utility model is good, and the system is in data acquisition storage end without configuring other capture cards just
The carry out data storage that can be convenient.
2, the utility model takes full advantage of high speed serialization TLK2711 interface and the USB3.0 interface of General portable is respective
Advantage show for spaceborne high-speed serial bus TLK2711 interface data real-time storage and provides a kind of newly portable on computers
Reliable technological approaches, and a kind of new technology is provided for the demonstration and verification that the big number of devices of spaceborne high speed carries out the ground stage
Means.
3, the data transmission provided by the utility model for the verifying of satellite borne equipment ground demonstration is realized with acquisition system
Spaceborne TLK2711 data transmission interface data in real time, are reliably transmitted and acquired and store to computer, are had the following characteristics that
General, portable, many advantages, such as bit error rate is low, stable working performance.The system is with a wide range of applications, and may be also used in
Such as: many imagings of high-resolution imaging spectrometer, tridimensional mapping camera, high band wide data compression transmission system or non-imaged data
In transmission device.
4, the high-speed real-time that spaceborne imaging device data transmission can provide 1.6Gbps bandwidth with acquisition system transmits.
Detailed description of the invention
Fig. 1 is the connection schematic diagram of satellite borne equipment data transmission and acquisition system；
Fig. 2 is the utility model embodiment data transmission interface conversion equipment structure composition figure.
Specific embodiment
The utility model is described in detail combined with specific embodiments below.
The utility model mainly includes three parts, be respectively data source, data-interface conversion equipment, data acquisition storage set
Standby composition.In the utility model specific implementation case, data source has used spaceborne high-resolution imaging equipment；Data-interface conversion
Equipment includes field programmable gate array (Field Programmable Gate Array, FPGA) unit, serial mode input list
The composition such as member, data outputting unit, data buffer storage unit, power supply and distribution unit, data-interface conversion equipment mainly utilize TLK2711
High-speed differential serial data de-serialization is completed, and data are sent according to USB3.0 transport protocol to data acquisition storage and are set
It is standby；Data apparatus for acquiring and storing is the computer for storing simultaneously display image data.
(1) data source
Data source refers to generation and sends the data code flow in this system course of work.Specific to present case, with spaceborne high score
Distinguish that imaging device as data source, transmits image data using 1 TLK2711.Data out connector is navigated using domestic Guizhou
The HSMHK connector of its electronics corporation production, transmission cable use high speed Shielded Twisted Pair.
(2) data transmission interface conversion equipment
The input terminal of data-interface conversion equipment is connected with data source, and output end is connected with data apparatus for acquiring and storing.Number
Conversion of the TLK2711 data transmission interface to USB3.0 image data coffret is completed according to coffret conversion equipment, mainly
It is formed including FPGA unit, serial mode input unit, data outputting unit, data buffer storage unit, power supply and distribution unit etc..
Serial mode input unit receives chip by interface connector, TTLK2711；Connector connects with spaceborne imaging device
Mouth is connected, the HSMHK connector produced using Guizhou aerospace electron company；1 TLK2711 chip, work clock are used
100Mhz；The high-speed serial data of input is decoded as 16bit parallel data, 1 road 100Mhz with Lu Shizhong, 2 road K/ by TLK2711
D coding control signal；16bit parallel data is sent to by way of bus control system and carries out data by TLK2711
Processing.
FPGA unit receives data, clock and the control signal of serial mode input unit input, and by serial input list
The data of member are stored into data buffer storage unit, and according to the request of output unit or according to set frequency from data buffer storage unit
Take out data, after the data of reading are sent to data outputting unit according to USB3.0 transport protocol.
Specific in one practical application example of the utility model, Xilinx company FPGA model has been selected
XC7K325T-1FBG900I, internal data merge logic module and receive 2 16bit parallel datas are merged into 1 32bit,
It is then stored in internal fifo module, this is because USB3.0 selected by circuit design is inputted using 32bit data parallel, case is
Read that FIFO is convenient and such mode for taking, therefore FIFO bit wide is set as 32bit, locating depth specifically sets according to image size
It sets.
Data buffer storage unit is used to storing data, and specific to the utility model practical application example, circuit design is selected
2 DDR2 memory device MT47H64M16HR chips of Micron company, monolithic data bit wide 16bit.
Data outputting unit is made of USB3.0 connector, USB3.0 transmission chip, the input of USB3.0 transmission chip signal
The I/O interface of end connection FPGA, output end connect out connector；Out connector connects high-speed data acquisition equipment
USB3.0 interface.
(3) data apparatus for acquiring and storing
High-speed data acquisition storage equipment refers mainly to the storage computer with USB3.0.In order to realize that high-speed data passes
Defeated, this system uses high-performance massive store computer；It includes USB3.0 interface, calculator memory, processing list that it, which is constituted,
The composition such as member and disk array；Calculator memory is divided into multiple cache modules, output termination disk array；In high-speed data warp
Disk array is written after depositing caching；Disk array is for realizing computer data storage；Processing unit is used for computer data
The control of storage and display.
Satellite borne equipment data transmission provided by the utility model and the operating process in acquisition course of normal operation are as follows:
(1) high-speed data acquisition storage equipment end drives according to USB3.0 according to actual needs, and installs and deposit for data
The specical software system of storage and display；2) spaceborne high-resolution imaging equipment, high speed data transmission interface change-over panel, height are sequentially connected
Fast data apparatus for acquiring and storing；3) it opens collecting image of computer and controls user software, according to the image resolution ratio size of originator
The setting image such as (referring to that image is made of n row, m column respectively), locating depth is shown or storage format；And corresponding turn-on data interface 4)
Conversion equipment；5) it opens spaceborne high-resolution imaging equipment and it is made normally to export image；Data apparatus for acquiring and storing carries out data
Real-time storage and display.
Claims (5)
1. a kind of spaceborne imaging device data transmission and acquisition system, including the conversion of spaceborne high-resolution imaging equipment, data-interface
Equipment and data apparatus for acquiring and storing, the spaceborne high-resolution imaging equipment include TLK2711 transmission chip and send out with TLK2711
The out connector for sending chip output to connect, it is characterised in that:
The data-interface conversion equipment includes input connector, TLK2711 reception chip, FPGA unit, USB3.0 transmission core
Piece, output interface, data buffer storage unit and power supply and distribution unit,
The TLK2711 receives chip and is connect by input connector with the out connector of spaceborne high-resolution imaging equipment；
The input terminal of the FPGA unit is connect with the TLK2711 output end for receiving chip；
The FPGA unit includes that data merge logic module and cell fifo, and the data merge logic module and are used for data
The data stored in cache unit merge, and the cell fifo is used to store the data after merging；
The USB3.0 transmission chip and FPGA unit two-way communication, the USB3.0 transmission chip and output interface phase intercommunication
Letter, the output interface use USB3.0 interface；
The data buffer storage unit is connect with FPGA unit, for carrying out data storage；
The power supply and distribution unit TLK2711 receives the power supply of chip, FPGA unit, USB3.0 transmission chip；
The data apparatus for acquiring and storing includes transmission cable and the storage computer with input interface, and the input interface is logical
It crosses transmission cable to connect with output interface, the type of the input interface is USB3.0 interface.
2. spaceborne imaging device data transmission according to claim 1 and acquisition system, it is characterised in that:
The storage computer further includes calculator memory, processing unit and disk array；The input interface passes through bridge
Connect calculator memory；The calculator memory is divided into multiple cache modules, and the output of cache module terminates disk array；It is described
Disk array is for realizing computer data storage；The processing unit is for controlling computer data storage and display.
3. spaceborne imaging device data transmission according to claim 1 or 2 and acquisition system, it is characterised in that:
The out connector and input connector are all made of HSMHK connector.
4. spaceborne imaging device data transmission according to claim 3 and acquisition system, it is characterised in that:
FPGA model XC7K325T-1FBG900I used by the FPGA unit.
5. spaceborne imaging device data transmission according to claim 4 and acquisition system, it is characterised in that:
The data buffer storage unit is 2 DDR2 memory device MT47H64M16HR chips, MT47H64M16HR chip data position
Wide 16bit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822125457.1U CN209313953U (en) | 2018-12-18 | 2018-12-18 | A kind of spaceborne imaging device data transmission and acquisition system |
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| CN201822125457.1U CN209313953U (en) | 2018-12-18 | 2018-12-18 | A kind of spaceborne imaging device data transmission and acquisition system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109547749A (en) * | 2018-12-18 | 2019-03-29 | 中国科学院西安光学精密机械研究所 | A kind of spaceborne imaging device data transmission and acquisition system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109547749A (en) * | 2018-12-18 | 2019-03-29 | 中国科学院西安光学精密机械研究所 | A kind of spaceborne imaging device data transmission and acquisition system |
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