CN100419457C - Ocean seism prospecting data collecting recording system - Google Patents
Ocean seism prospecting data collecting recording system Download PDFInfo
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- CN100419457C CN100419457C CNB2005100556028A CN200510055602A CN100419457C CN 100419457 C CN100419457 C CN 100419457C CN B2005100556028 A CNB2005100556028 A CN B2005100556028A CN 200510055602 A CN200510055602 A CN 200510055602A CN 100419457 C CN100419457 C CN 100419457C
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Abstract
The present invention discloses a collecting and record system for ocean seism exploration data, which comprises a main-control work station for controlling the system to execute various function commands, a drawing device for drawing data sketch maps, a magnetic tape unit for recording data, a hard disc externally hung for recording data, a quality control and record working station for controlling drawing and record data of the drawing device, the magnetic tape unit and the hard disc, and a CPCI embedded data collecting processor. Seism data extracted according to time is transferred to the main-control work station via an ethernet, control commands and configuration parameters of the main-control work station are received, status data in the seism data is separated, time sequence data is converted to channel sequence data, navigation data is added, and the data is transferred to the quality control and record work station via the ethernet. The present invention has the advantages of advanced technology, high channel capacity, simple and reasonable structure, low cost, etc., and is suitable for two-dimension seism exploration, three-dimensional seism exploration and high-resolution seism exploration in ocean.
Description
Technical field
The present invention relates to a kind of data acquisition logging system, relate in particular to a kind of ocean seism prospecting data collecting recording system.
Background technology
Earthquake data acquisition and register system are the equipment of most critical in the seismic prospecting, seismic exploration requires distortionless receiving record seismic event, and earthquake data acquisition and register system must have great dynamic range, low noise, abilities such as low drift, broadband and compacting interference wave; For estimating the quality of seismic data, instrument can be realized the supervision playback function to record material, so that in time adjust method of work and instrument parameter in the open air.
Yet, earthquake data acquisition and register system that China uses in the exploration of marine oil gas field, all be equipment from external import, as: the MSX system of American I NPUT/OUTPUT company, the instrument and equipments such as SYNTRAK 960 systems of France SERCEL company, this quasi-instrument all is based on traditional industrial computer VME bus structure, and volume is bigger, technology is backward relatively, but also because technical monopoly causes valuable product.
Therefore, a kind of novel system for acquiring seismic data can be proposed, can appliance computer the newest fruits of control field, electronic technology field, optimize earthquake acquisition and recording system, raising increases the collection capacity of geological data to collection, processing and the registering capacity of geological data, improves the reliability and stability of system, for meticulous development plan of oil field later stage and ocean reservoir exploration provide accurate data, become problem demanding prompt solution in the industry.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of ocean seism prospecting data collecting recording system, by system optimization, raising increases the collection capacity of geological data to collection, processing and the registering capacity of geological data, improves the reliability and stability of system.
The invention provides a kind of ocean seism prospecting data collecting recording system, it is characterized in that comprising main control workstation, plotting apparatus, magnetic tape station, plug-in hard disk, quality control and recording station, CPCI embedded data acquisition processor and positioning navigating device, wherein:
Described main control workstation is connected by Ethernet and quality control and recording station, CPCI embedded data acquisition processor, be used for control system and carry out various command functions, has dual screen, one is used for showing in real time that image data changes synoptic diagram, and another is used to show human-computer interaction interface;
Described plotting apparatus is connected with described quality control and recording station, is used for the drawing data synoptic diagram;
Described magnetic tape station is connected with described quality control and recording station, is used for record data;
Described plug-in hard disk is connected with described quality control and recording station, is used for record data, stores one-channel record;
Described quality control and recording station, gigabit Ethernet plug-in card and SCSI plug-in card with pci bus, by the geological data of gigabit Ethernet reception from the network interface board of described CPCI embedded data acquisition processor, and a data that receive is write the tape unit by SCSI with geological data, handle the back through digital filtering, AGC simultaneously and on plotting apparatus, draw the field monitor record, on display, show the datagraphic that any cable collects; One-channel record then is stored on the described plug-in hard disk;
Described positioning navigating device is used for by Ethernet to data acquisition process machine transmission navigation data;
Described CPCI embedded data acquisition processor adopts passive backplane CompactPCI bus, comprises system management unit, network interface board, data acquisition board and auxiliary channel data collection plate, wherein:
System management unit is used to manage described processor;
The auxiliary channel data collection plate is used to gather auxiliary channel data;
Network interface board, be used to store geological data and data to be shown, the geological data that data acquisition board is write by Ethernet sends quality control and recording station to, to the geological data of described main control workstation transmission through decimation in time, and the control command and the configuration parameter of reception main control workstation send to data acquisition board; Further comprise:
Ethernet PMC buckle is used to realize the data transmission of described network interface board and quality control and recording station;
Network interface card is used for embedded system and extraneous getting in touch;
The CPU mini system adopts damascene structures, realizes the data communication of network interface board and main control workstation and quality control and recording station;
Serial ports controller is used for the serial input and output of control data;
5933 controllers are used for the data transmission after the ordering to described Ethernet buckle;
The pci bus interface module is used to realize the data transmission of data from the cpci bus to the network interface board;
High capacity RAM is used to store data;
Hardware logic control module FPGA module is used to realize that write control, the data of data from bus interface module to high capacity RAM reading control, PCI control nuclear, DRAM control nuclear and high capacity RAM management from high capacity RAM to the CPU mini system.
Described data acquisition board has 4, every interface board has the upstream data interface of reception one road underwater cable by the geological data of optical fiber transmission, and to the down order interface of respective cable transmission command and configuration parameter, the geological data light signal that is used for receiving is converted to electric signal, status data is wherein peeled off, the earthquake time series data is converted to order sequenced data, adds navigation data, write described network interface board; Further comprise:
The upstream data fiber cable joint is used for light signal is converted to electric signal;
Electrical to optical converter, being used for electrical signal conversion is light signal;
Cpci bus provides CompactPCI bus;
High-speed serial data communications reception chip is used to receive earthquake and the status data that is converted to electric signal by described upstream data fiber cable joint, and serial data is converted into parallel data;
Parallel-to-serial converter is used for system command is converted to serial data;
The CPU mini system adopts damascene structures, the interruption alarm that the real-time control of realization optical cable data acquisition board, the data communication with main control workstation, control command parsing, tension force detect;
Bus controller is used for the controller of local pci bus;
Network interface card is used for the transmission of system command, configuration parameter and navigation data;
Local pci bus is used for system command, configuration parameter and navigation data are transferred to the hardware logic control module;
Hardware logic control module FPGA, the control system order directly is passed to described parallel-to-serial converter, and becomes light signal through described photoelectric commutator, transfers to corresponding cable;
Local bus provides local bus, and geological data transfers to cpci bus through local bus, and transfers to network interface board again;
The bus accelerator connects accelerator as the bus between local bus and the cpci bus;
SDRAM is used for cooperating with described hardware logic control module, and geological data converts the preface structure to by sequential organization, adds navigation data, is transferred to cpci bus through local bus;
Serial ports is used for described CPU mini system and extraneous communication.
The present invention compared with prior art has the following advantages: real-time collection, processing and the writing function of having realized 4 tunnel time shift earthquake towed cable data, gather road number many (8,000 roads, every road 2000 road earthquake image data), sampling rate height (1ms), data volume big (26MB/s); Adopt the newest fruits that is applied in computer control field, electronic applications, first highly reliable system platform CPCI built-in industrial controller has been introduced system for acquiring seismic data; Adopt high-speed high capacity FPGA hardware logic to realize complicated control, algorithm, driving, with instead of software, raising speed.Workstation can be selected the two CPU workstations of SUN Blade2000 for use, be first 1GHz, 64 workstation, it has leading calculated performance, high-end 3D visualization function, the present invention possess skills advanced person, big, simple and reasonable, the low cost and other advantages of road capacity are applicable to ocean two dimension, three-dimensional and high-resolution seismic exploration.
Description of drawings
Fig. 1 is a system architecture diagram of the present invention;
Fig. 2 is system data transmission synoptic diagram of the present invention;
Fig. 3 is a DPM data acquisition casing synoptic diagram of the present invention;
Fig. 4 is the position view of pci interface plate of the present invention in the DPM casing;
Fig. 5 is a pci interface plate structure synoptic diagram of the present invention;
Fig. 6 is a pci interface plate FPGA synoptic diagram of the present invention;
Fig. 7 is the position view in the VPD plate DPM casing of the present invention;
Fig. 8 is a VPD plate structure synoptic diagram of the present invention;
Fig. 9 is a VPD plate data flowchart of the present invention.
Embodiment
The present invention mainly is made up of a passive backplane CompactPCI bus embedded type computing machine, main control workstation, quality control and recording station VPR (Vision, Plotting and Recording) (being responsible for drawing, graphic presentation, magnetic tape station record), tape unit, a plotting apparatus etc.
Main control workstation provides man machine operation interface, is the control core of system.The operator realizes various commands such as configuration, self check, data storage, demonstration to total system by main control workstation.The duty of the each several part of all right display system on main control workstation, main control workstation adopts dual screen, show in real time that on a display 4 optical cable image data change synoptic diagram (oscillator figure), show human-computer interaction interface on another display.
System is received the geological data of four road optical cables transmission under water by DPM (Data Process Module) data acquisition casing.Insert following functional template in the DPM cabinet: 1 of system management unit, four of data acquisition board FCI, 1 of network interface board VPD interface board (comprising gigabit ethernet interface) plate, one of auxiliary channel data collection plate FCI.System management unit mainly is the I/O system board to be configured hot plug control etc. in order to manage whole C PCI cabinet, to comprise.Four blocks of data collection plate FCI (Fibre Cable Interface) plate is arranged in the DPM cabinet, the geological data that reception transmits by optical fiber from underwater cable, every block of FCI plate receives 1 road cable geological data, status data is wherein peeled off, and the earthquake time series data is converted to order sequenced data, add navigation data at last, write network interface board VPD interface board by cpci bus, by the earthquake oscillator video data of 100Mbps ENET network interface to main control workstation transmission process decimation in time, and the control command and the configuration parameter that receive main control workstation; High capacity RAM in the VPD plate, storage geological data and storage data to be shown.By the 1000Mbps network interface, give VPR workstation on the VPD plate with geological data; Receive the control command and the configuration parameter of main control workstation by 100Mbps ENET network interface, system synchronization control SYNC is responsible for the sequential control of system, the function of synchronous plate SYNC realizes that at database VPD this plate mainly realizes synchronous logic by a FPGA, simultaneously, main control workstation can be provided with by the partial parameters of Ethernet interface to synchronous logic.
Gigabit Ethernet plug-in card and SCSI plug-in card that pci interface is arranged in the VPR workstation, the VPR workstation is by the geological data of gigabit Ethernet reception from the VPD plate of CPCI cabinet, and a data that receive is write tape unit with geological data according to the SEG-D form by SCSI, handle the back through digital filtering, AGC simultaneously and on drawing, draw the field monitor record, on display, show the datagraphic that any cable collects.By the plug-in 8mm magnetic tape station of VPR workstation, can carry out system software backup and one-channel record.The VPR workstation also is responsible for the static playback and the drawing of magnetic tape station.
With reference to Fig. 1, Fig. 2, system mainly is made up of a main control workstation (1), a passive backplane CompactPCI bus embedded type data acquisition process machine DPM (3), quality control and recording station VPR (2) (Vison, Plotting and Recording) (being responsible for drawing, graphic presentation, magnetic tape station record), a plotting apparatus (7), tape unit (8) and plug-in hard disk (9).
Main control workstation (1) provides man machine operation interface, is the control core of system.The operator realizes various commands such as configuration, self check, data storage, demonstration to total system by main control workstation (1) by 100Mbps ENET (11).Go up the duty of the each several part of all right display system at main control workstation (1), main control workstation adopts dual screen, go up 4 optical cable image data variations of demonstration in real time synoptic diagram (oscillator figure) at a display (4), geological data is transmitted to main control workstation (1) by 100Mbps ENET (11) Ethernet by real-time data acquisition machine DPM (3) in real time; Go up the demonstration human-computer interaction interface at another display (5).
The cabinet of real-time data acquisition machine DPM (3) sends acquisition and configuration parameter by down order interface (18) to underwater cable, receive the uplink optical fibers data by upstream data optical fiber interface (17), by the earthquake oscillator video data of 100Mbps ENET (11) Ethernet to main control workstation (1) transmission process decimation in time, and the control command and the configuration parameter that receive main control workstation (1), peel off wherein status data with recording data on the tape, and time series data is converted to order sequenced data, add navigation data at last, by the VPR workstation (2) of 1000Mbps (12) gigabit Ethernet with the data transmission.
VPR workstation (2) uses the gigabit Ethernet plug-in card and the SCSI plug-in card of pci interface.By the geological data of 1000Mbps (12) gigabit Ethernet reception from the VPD plate of DPM (3) cabinet, and a data that receive is write tape unit (8) according to the SEG-D form with data by SCSI.One-channel record is stored on the plug-in hard disk of VPR workstation (2) (9).The VPR workstation also is responsible for the static playback and the drawing of magnetic tape station.Display (6) and plotting apparatus (7) are connected on the VPR workstation, are used for the demonstration and the drawing of quality control.
Main control workstation (1) and VPR workstation (2) are selected the two CPU workstations of SUN Blade2000 for use, Sun Blade 2000 is first 1GHz, 64 workstation, it has leading calculated performance, high-end 3D visualization function, is one of product of cost performance the best on 64 workstation markets.
Peripherals transmits navigation data by 100Mbps ENET (11) to data acquisition process machine DPM (3) as positioning navigating device (40);
With reference to Fig. 3, Fig. 4, it is passive backplane CompactPCI bus (17) embedded computer that data acquisition process machine DPM (3) adopts, CompactPCI is a kind of based on pci bus, on electrical specification, be equal to Desktop PC I bus, but adopted different physical boards shapes, not only having had the high-performance of pci bus but also had the high reliability of Eurocard structure, is the industrial computing machine that meets international standard, is adapted at using on higher industry of reliability requirement and the military equipment.What we selected for use is the CPX2408 of Motorola series, and CPX2408 is the CompactPCI computer platform of 8 grooves, inserts feature board in the CPCI cabinet, comprises four optical cable data FCI interface boards (16), takies four groove positions; Auxiliary channels optical cable data FCI plates (15) take a groove position; Network VPD interface board (14) takies a groove position; A CPCI casing controller CPU plate (13) takies a groove position.
Optical cable data FCI interface board (16) receives the geological data of underwater cable by Optical Fiber Transmission according to the 6U standard design by upstream data optical fiber interface (17).FCI plate major function is: receive the uplink optical fibers data, light signal is converted to electric signal, status data is wherein peeled off, data are converted to order sequenced data from time series data, add navigation data at last, the data transmission that will write down by cpci bus (19) arrives VPD interface board (14); Also designing on the optical cable data FCI interface board (16) has down order electrical interface (18), to respective cable transmission command and configuration parameter.
Auxiliary channels optical cable data FCI plates (15) are identical with optical cable data FCI interface board (16) design function, just gather auxiliary channel data.
Network VPD interface board (14) is stored 4 road optical fiber geological datas (be converted to order sequenced data and added navigation data) according to the 6U standard design, for magnetic tape station record and graphic presentation.In network VPD interface board (14), high capacity RAM is arranged, be used for storing geological data and storage data to be shown.
DPM casing controller CPU plate (13) is the Mcp750 of motorola inc.DPM casing controller CPU plate (13) mainly is the I/O system board to be configured hot plug control etc. in order to manage whole C PCI cabinet, to comprise.Mcp750 series CPU board adopts the PowerPlus structure, the low power dissipation design of optimization, and high performance powerpc750 processes device, and is powerful, has very high reliability.
With reference to figure 2, Fig. 4, the cabinet of real-time data acquisition machine DPM (3) has four optical cable data FCI interface boards (16), takies four groove positions.Every optical cable data FCI interface board (16) receives one road underwater optical cable geological data.Optical cable data FCI interface board (16) is according to the 6U standard design, and specification is 160mmX233.35mm.
Optical cable data FCI interface board (16) sends acquisition and configuration parameter by down order interface (18) to underwater cable, receive the uplink optical fibers data by upstream data optical fiber interface (17), by the earthquake oscillator video data of 100Mbps ENET (11) Ethernet to main control workstation (1) transmission process decimation in time, and the control command and the configuration parameter that receive main control workstation (1), peel off wherein status data with recording data on the tape, and time series data is converted to order sequenced data, add navigation data at last, the data transmission that will write down by cpci bus (19) arrives VPD interface board (14).
Auxiliary channels optical cable data FCI plates (15) are identical with optical cable data FCI interface board (16) design function, just gather auxiliary channel data.Optical cable data FCI interface board (16) and auxiliary channels optical cable data FCI plates (15) exchange and use.
With reference to figure 5, Fig. 6, optical cable data FCI interface board (16) receives one road optical cable data by upstream data fiber cable joint (17), comprises the seismic channel data that hydrophone sends and the status data of circuit under water; Fiber cable joint (17) adopts HFBR-2119T, its function is that light signal is converted to electric signal, the earthquake and the status data that convert electric signal to are transferred to high-speed serial data communications reception chip (20), and that chip adopts is CY7B933, and serial data is converted into parallel data.Parallel data is transferred to hardware logic control module FPGA (27), status data is transferred to 100Mbps ENET (11) with the geological data that is extracted by local pci bus (25) in hardware logic control module FPGA (27), be transferred to main control workstation (1) through 100Mbps ENET (11) again, the controller of local pci bus (25) is an AMCC S5933 bus controller (23), and hundred Broadcoms adopt intel 82559 network interface cards (24); Cooperate with 2X256M SDRAM (30) at hardware logic control module FPGA (27), geological data converts the preface structure to by sequential organization, add navigation data, be transferred on the cpci bus (19) through local bus (28), pass through cpci bus (19) again and be transferred to VPD plate (14), PCI9656 bus accelerator (29) connects accelerator as the bus between local bus (28) and the cpci bus (19).
System command, configuration parameter and navigation data are transferred to intel82559 network interface card (24) by 100Mbps ENET (11), be transferred to hardware logic control module FPGA (27) through local pci bus (25), in hardware logic control module FPGA (27), system command directly is passed to parallel-to-serial converter (21), become serial data, again through electrical to optical converter (18), become light signal, command transfer is arrived corresponding cable, parallel-to-serial converter (21) adopts CY7B923, and electrical to optical converter adopts HFBR-1119T; Configuration parameter and navigation data will be transferred to VPD plate (14) together with the geological data of layout Cheng Daoxu structure.
CPU mini system (22) adopts Embedded System Structure, and the function CPU mini systems (22) such as interruption alarm that the real-time control of realization optical cable data FCI interface boards (16), the data communication with main control workstation (1), control command parsing, tension force detect adopt MPC8240.CPU mini system (22) can pass through serial ports (31) or 100-M network Ethernet (11) and extraneous communication, carries out detail programming work.
With reference to figure 7, in data processing casing DPM (3), network VPD plate (14) receives the data of four road optical cable data FCI interface boards (16) and auxiliary channels optical cable data FCI interface boards (15) transmission by cpci bus (19); In network VPD plate (14), high capacity RAM is arranged, be used for storing geological data and storage data to be shown; VPD plate (14) to VPR workstation (2) transmission geological data, receives the control command and the configuration parameter of main control workstation by 1000Mbps Ethernet (12) by 100 m ethernet (11).
With reference to figure 8, Fig. 9, the cabinet of real-time data acquisition machine DPM (3) has a network VPD plate, takies a groove position.VPD plate (14) is according to the 6U standard design, and specification is 160mmX233.35mm.
Network VPD plate (14) is by the data of cpci bus (19) reception from fiber data FCI interface board (16) and auxiliary channel data FCI interface board (15) transmission, by pci bus interface module (37), realize the data transmission of data from cpci bus (19) to network VPD plate (14), under the cooperation of hardware logic control module FPGA module (38) and high capacity RAM (39), data-switching becomes based on optical fiber road, every road order sequenced data structure, the data structure order of four road fiber datas series connection, hardware logic control module FPGA module (38) realizes the write control of data from bus interface module (37) to high capacity RAM (39), data reading from high capacity RAM (39) to CPU mini system (34) controlled, PCI controls nuclear, DRAM controls nuclear, high capacity RAM management, the RAM module realizes the mass data buffer memory.Data after the ordering are transferred to gigabit Ethernet PMC buckle (32) through 5933 controllers (36).Gigabit Ethernet PMC buckle (32) is realized the data transmission of network VPD plate (14) and quality control and recording station VPR workstation (2).
CPU mini system (34) adopts Embedded System Structure, realizes the data communication of network VPD plate (14) and main control workstation (1) and quality control and recording station VPR workstation (2).CPU mini system (34) adopts Motorola8240, and embedded system can be got in touch with the external world from 100 m ethernet (11) or by serial ports (35) by Intel82559 network interface card (33), carries out the detail programming of CPU mini system.
The achievable technical indicator of present embodiment system is:
1, maximum receiving ability
Every cable 2000 Dao @1ms (4000 Dao @2ms)
2, the low frequency filtering of cutting of numeral:
3，6，9，12Hz
Slope: 18dB/oct
3, auxiliary channels
32 roads
4, sampling rate
Support 0.5ms, 1ms2ms, 4ms sampling
5, output format
SEG-D?8048，8058
6, double recording
LTO3581
Claims (1)
1. an ocean seism prospecting data collecting recording system is characterized in that comprising main control workstation, plotting apparatus, magnetic tape station, plug-in hard disk, quality control and recording station, CPCI embedded data acquisition processor and positioning navigating device, wherein:
Described main control workstation is connected by Ethernet and quality control and recording station, CPCI embedded data acquisition processor, be used for control system and carry out various command functions, has dual screen, one is used for showing in real time that image data changes synoptic diagram, and another is used to show human-computer interaction interface;
Described plotting apparatus is connected with described quality control and recording station, is used for the drawing data synoptic diagram;
Described magnetic tape station is connected with described quality control and recording station, is used for record data;
Described plug-in hard disk is connected with described quality control and recording station, is used for record data, stores one-channel record;
Described quality control and recording station, gigabit Ethernet plug-in card and SCSI plug-in card with pci bus, by the geological data of gigabit Ethernet reception from the network interface board of described CPCI embedded data acquisition processor, and a data that receive is write the tape unit by SCSI with geological data, handle the back through digital filtering, AGC simultaneously and on plotting apparatus, draw the field monitor record, on display, show the datagraphic that any cable collects; One-channel record then is stored on the described plug-in hard disk;
Described positioning navigating device is used for by Ethernet to data acquisition process machine transmission navigation data;
Described CPCI embedded data acquisition processor adopts passive backplane CompactPCI bus, comprises system management unit, network interface board, data acquisition board and auxiliary channel data collection plate, wherein:
System management unit is used to manage described processor;
The auxiliary channel data collection plate is used to gather auxiliary channel data;
Network interface board, be used to store geological data and data to be shown, the geological data that data acquisition board is write by Ethernet sends quality control and recording station to, to the geological data of described main control workstation transmission through decimation in time, and the control command and the configuration parameter of reception main control workstation send to data acquisition board; Further comprise:
Ethernet PMC buckle is used to realize the data transmission of described network interface board and quality control and recording station;
Network interface card is used for embedded system and extraneous getting in touch;
The CPU mini system adopts damascene structures, realizes the data communication of network interface board and main control workstation and quality control and recording station;
Serial ports controller is used for the serial input and output of control data;
5933 controllers are used for the data transmission after the ordering to described Ethernet buckle;
The pci bus interface module is used to realize the data transmission of data from the cpci bus to the network interface board;
High capacity RAM is used to store data;
Hardware logic control module FPGA module is used to realize that write control, the data of data from bus interface module to high capacity RAM reading control, PCI control nuclear, DRAM control nuclear and high capacity RAM management from high capacity RAM to the CPU mini system.
Described data acquisition board has 4, every interface board has the upstream data interface of reception one road underwater cable by the geological data of optical fiber transmission, and to the down order interface of respective cable transmission command and configuration parameter, the geological data light signal that is used for receiving is converted to electric signal, status data is wherein peeled off, the earthquake time series data is converted to order sequenced data, adds navigation data, write described network interface board; Further comprise:
The upstream data fiber cable joint is used for light signal is converted to electric signal;
Electrical to optical converter, being used for electrical signal conversion is light signal;
Cpci bus provides CompactPCI bus;
High-speed serial data communications reception chip is used to receive earthquake and the status data that is converted to electric signal by described upstream data fiber cable joint, and serial data is converted into parallel data;
Parallel-to-serial converter is used for system command is converted to serial data;
The CPU mini system adopts damascene structures, the interruption alarm that the real-time control of realization optical cable data acquisition board, the data communication with main control workstation, control command parsing, tension force detect;
Bus controller is used for the controller of local pci bus;
Network interface card is used for the transmission of system command, configuration parameter and navigation data;
Local pci bus is used for system command, configuration parameter and navigation data are transferred to the hardware logic control module;
Hardware logic control module FPGA, the control system order directly is passed to described parallel-to-serial converter, and becomes light signal through described photoelectric commutator, transfers to corresponding cable;
Local bus provides local bus, and geological data transfers to cpci bus through local bus, and transfers to network interface board again;
The bus accelerator connects accelerator as the bus between local bus and the cpci bus;
SDRAM is used for cooperating with described hardware logic control module, and geological data converts the preface structure to by sequential organization, adds navigation data, is transferred to cpci bus through local bus;
Serial ports is used for described CPU mini system and extraneous communication.
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| CN106772569B (en) * | 2017-03-23 | 2019-01-11 | 中国科学技术大学 | A kind of underwater data transmitting device applied in ocean seismic exploration haulage cable system |
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| CN1651935A (en) | 2005-08-10 |
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