CN101561511A - Towline data interface board for geophysical exploration - Google Patents

Towline data interface board for geophysical exploration Download PDF

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Publication number
CN101561511A
CN101561511A CNA2009100846993A CN200910084699A CN101561511A CN 101561511 A CN101561511 A CN 101561511A CN A2009100846993 A CNA2009100846993 A CN A2009100846993A CN 200910084699 A CN200910084699 A CN 200910084699A CN 101561511 A CN101561511 A CN 101561511A
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China
Prior art keywords
data
interface
towing cable
towline
sent
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CNA2009100846993A
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Chinese (zh)
Inventor
阮福明
李剑
朱耀强
谢荣清
孟凡良
王海龙
邱永成
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China Oilfield Services Ltd
China National Offshore Oil Corp CNOOC
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China Oilfield Services Ltd
China National Offshore Oil Corp CNOOC
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Priority to CNA2009100846993A priority Critical patent/CN101561511A/en
Publication of CN101561511A publication Critical patent/CN101561511A/en
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Abstract

The invention discloses a towline data interface board for geophysical exploration, which is used for receiving and processing high-density seismic data of a long towline in real time. The interface board comprises the following parts: a towline interface module which receives towline data and passes down a towline control command to an underwater towline; a data processing module which is connected with the towline interface module, extracts real-time display data from the towline data, analyzes and separates data of the underwater towline, acquires towline status data and the seismic data, converts the seismic data from time sequence to path sequence, sends the path sequence data obtained by the conversion to an external recording system, and sends the towline control command to the towline interface module; and a control module which is connected with the data processing module, generates the towline control command and sends the control command to the data processing module, and sends real-time display data and the towline status data to an external control system. The towline data interface board is applied to receiving and processing towline seismic data in real time in a marine towline seismic acquisition device.

Description

The towline data interface board that is used for geophysical survey
Technical field
The present invention relates to the geophysical survey field, relate in particular to a kind of towline data interface board that is used for geophysical survey.
Background technology
Along with the exploratory development of oil develops towards meticulous direction, geophysical exploration technology is increasing to the demand of three-dimensional high-precision exploration, is promoting the continuous development of high-resolution 3-d seismic exploration technology.Present existing procucts, mostly based on traditional industrial computer VME (VersaModule Eurocard) bus structure, volume is bigger, technology is backward relatively, and the towing cable track pitch is bigger, and the image data amount is little, transmission speed is slow, generally is not suitable for being applied to the high-resolution seismic exploration.
Current, high density single-point reception technique makes seismograph need possess the acquisition process ability in roads up to ten thousand, with traditional array mode relatively, the geological data amount growth at double of collection.This data-handling capacity to the seismograph device has proposed great challenge, and the data-handling capacity that particularly receives the interface section of geological data seems most important.
In the prior art, the data bus transmission bandwidth of earthquake data acquisition interface card is lower, and is common such as being 32 bits (bit) * 33 megahertzes (MHz), the maximum data transmission capabilities of supporting 6.48 megabyte (Mbytes)/second (s).The optical fiber interface speed that links to each other with underwater towing line is also lower, is 160 megabits (Mbit)/s to the maximum.And the metadata cache of interface board adopts direct insertion synchronous DRAM (SDRAM) usually, and stability is lower.
In sum, the real-time reception processing power of earthquake data acquisition interface card is limited in the prior art, and reliability is lower, can't satisfy the reception and the processing of long towing cable high density earthquake data.
Summary of the invention
Technical matters to be solved by this invention is to be to provide a kind of towline data interface board that is used for geophysical survey, with real-time reception and the long towing cable high density earthquake data of processing.
In order to solve the problems of the technologies described above, the invention provides a kind of towline data interface board that is used for geophysical survey, reception is also handled the streamer data that underwater towing line is uploaded, and comprising:
The towing cable interface module is used to receive described streamer data, passes the towing cable control command down to described underwater towing line;
Data processing module, link to each other with described towing cable interface module, be used for extracting real-time video data from described streamer data, described underwater towing line data are resolved and separated, obtain towing cable status data and geological data, and described geological data carried out the conversion of sequential to the road preface, the described road order sequenced data that is converted to is sent to the external record system; Also be used for described towing cable control command is sent to described towing cable interface module;
Control module links to each other with described data processing module, is used to produce described towing cable control command and sends to described data processing module, and described real-time video data and towing cable status data are sent to external control system.
Preferably, described towing cable interface module comprises:
Interface unit is used for described streamer data is sent to described data processing unit, and described towing cable control command is sent to described underwater towing line;
String and converting unit link to each other with described interface unit and data processing unit, are used to finish the serial/parallel conversion of described streamer data and towing cable control command.
Preferably, described interface unit, comprise at least optical interface and electrical interface at least one of them.
Preferably, described optical interface comprises:
The data light interface is used for described streamer data is sent to described data processing module;
The order optical interface is used for described towing cable control command is sent to described underwater towing line;
Described electrical interface comprises:
The data electrical interface is used for described streamer data is sent to described data processing module;
The order electrical interface is used for described towing cable control command is sent to described underwater towing line.
Preferably, described string and converting unit are used for described streamer data is converted to parallel signal, and described towing cable control command is converted to the serial differential signal.
Preferably, described data processing module comprises:
Data processing unit is used to extract described real-time video data, obtains described towing cable status data and geological data, and described geological data is carried out the conversion of sequential to the road preface, obtains order sequenced data;
Storage unit links to each other with described data processing unit, is used for storing described road order sequenced data according to the road sequence address;
Outside interconnection standard interface unit, link to each other with described data processing unit, be used to adopt outside interconnection standard that described real-time video data and towing cable status data are sent to described control module, described towing cable control command is sent to described towing cable interface module;
The outside interconnection standard interface of compact unit links to each other with described storage unit, is used for by compact outside interconnection standard, and described road order sequenced data is sent to described external record system.
Preferably, described data processing unit is field programmable gate array; Described storage unit for adopting two ddr sdrams, constitutes the table tennis storage organization; Described outside interconnection standard interface unit is outside interconnection standard interface chip; Described, the outside interconnection standard interface of compact unit is the outside interconnection standard interface of compact chip.
Preferably, described control module comprises:
Outside interconnection standard interface is used for described towing cable control command is sent to described data processing module, receives described real-time video data and towing cable status data that described data processing module sends;
Central processing unit links to each other with described outside interconnection standard interface, is used to produce described towing cable control command, described real-time video data and towing cable status data is formatd to handle obtain formatted data;
The peripheral communications interface links to each other with described central processing unit, is used for described formatted data is sent to described external control system.
Preferably, described peripheral communications interface comprises:
Network interface is used for described real-time video data and towing cable status data are sent to external control system;
Serial ports is used to monitor described interface board duty, finishes described interface board debugging.
The present invention compared with prior art, real-time Data Receiving and processing power significantly improve, and can satisfy the data acquisition of the long towing cable of high density; A large amount of wide temperature devices of surface-mount type that adopt have the attenuating power consumption, improve characteristics such as stability and reliability, satisfy the demand of production operation.Interface board among the present invention is used for real-time reception, the processing of marine streamer earthquake-capturing equipment to streamer seismic data, is the interface unit of indoor register instrument and underwater towing line part.
Description of drawings
Fig. 1 is the composition synoptic diagram of interface board one embodiment of the present invention.
Fig. 2 is the composition synoptic diagram of an application example of middle interface module embodiment illustrated in fig. 1.
Fig. 3 is the composition synoptic diagram of an application example of middle data processing module embodiment illustrated in fig. 1.
Fig. 4 is the composition synoptic diagram of an application example of middle control module embodiment illustrated in fig. 1.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, how the application technology means solve technical matters to the present invention whereby, and the implementation procedure of reaching technique effect can fully understand and implements according to this.
Fig. 1 is the composition synoptic diagram of interface board one embodiment of the present invention, and this embodiment mainly comprises towing cable interface module 110, data processing module 120 and control module 130, wherein:
Towing cable interface module 110 is used to connect underwater towing line, receives the streamer data that underwater towing line is uploaded, and passes the towing cable control command down to underwater towing line; Interface module need be carried out serial/parallel conversion process, send to data processing module 130 after the high speed serialization differential signal (being streamer data) that it sends underwater towing line is converted to parallel signal, simultaneously the parallel signal (being the towing cable control command) of data processing module 130 is converted to the serial differential signal and sends to underwater towing line;
Data processing module 120 links to each other with towing cable interface module 110, receives and processing underwater towing line data, comprises the processing of following several aspects:
1) from the underwater towing line data, extracts real-time video data;
2) the underwater towing line data are resolved and separate, obtain wherein towing cable status data and geological data;
3) geological data is carried out the conversion of sequential to the road preface, and the road order sequenced data that is converted to alternately is cached in two jumbo storage unit;
4) by the outside interconnection standard of compact (Compact Peripheral ComponentInterconnect, be called for short: Compact PCI or CPCI) the High speed rear panel bus transfer, the road order sequenced data of buffer memory is transferred to outside workstation register system, to carry out follow-up data processing (in this example with each interface board in the CPCI cabinet, the streamer seismic data that collects is pooled to CPU control module in the CPCI cabinet by CPCI High speed rear panel bus, is transferred to the workstation register system by gigabit Ethernet again);
5) the towing cable control command that control module 130 is produced sends to towing cable interface module 110;
Control module 130 links to each other with data processing module 120, produces the towing cable control command and sends to data processing module, is responsible for control, the scheduling feature of interface board, comprises being provided with etc. of power-up initializing configuration, running parameter of interface board; And realize communicating by letter of interface board and external control system by network interface, send real-time video data and towing cable status data to external control system, and the operating state data of interface board.
Fig. 2 is the composition synoptic diagram of an application example of interface module 110 in the foregoing description.Please refer to interface board embodiment shown in Figure 1, interface module 110 shown in Figure 2 mainly comprises interface unit 21 and serial 230.Wherein interface unit 21 more comprises optical interface 210 and electrical interface 220, and optical interface 210 and electrical interface 220 are realized identical functions, backups each other, and selects to use with convenient on-the-spot working environment according to reality.Optical interface 210 more is divided into data light interface 212 and order optical interface 214, electrical interface 220 more is divided into data electrical interface 222 and order electrical interface 224, wherein data light interface 212 and data electrical interface 222 are used to upload streamer data to data processing module 120, and order optical interface 214 and order electrical interface 224 are used for passing the towing cable control command to underwater towing line down.Serial 230, realize the serial/parallel conversion of streamer data and towing cable control command, because the data and the order of underwater towing line transmission are serial forms, and data in the data processing module 130 and order are parallel form, therefore need carry out the serial/parallel conversion of data layout in towing cable interface module 110, send to data processing module 130 after streamer data being converted to parallel signal, the towing cable control command that data processing module 130 is sent is converted to the serial differential signal and sends to underwater towing line.
Fig. 3 is the composition synoptic diagram of an application example of data processing module 120 in the foregoing description.Please refer to interface board embodiment shown in Figure 1, data processing module 120 shown in Figure 2, mainly comprise data processing unit 322, storage unit 324, outside interconnection standard (Peripheral ComponentInterconnect, be called for short PCI) interface unit 326 and CPCI interface unit 328, wherein:
Data processing unit 322, receive the underwater towing line data that towing cable interface module 110 sends, be used for extracting real-time video data from the underwater towing line data, the underwater towing line data are resolved and separated, obtain wherein towing cable status data and geological data, and geological data carried out the conversion of sequential to the road preface, obtain order sequenced data; Should be a field programmable gate array (FPGA) with in the example;
Storage unit 324 links to each other with data processing unit 322, be used for to data processing unit 322 road order sequenced data that data processing unit 322 is obtained carry out buffer memory according to the road sequence address; Should use in the example, because the underwater towing line data that receive have characteristics such as data volume is big, real-time, therefore storage unit 324 adopts two jumbo ddr sdram (Double Data RateSynchronous Dynamic Random Access Memory, be called for short: DDR SDRAM) constitute the table tennis storage organization, reduce the system works dead time with this, improve data-handling capacity;
Pci interface unit 326, link to each other with data processing unit 322, be used to realize the communication interface function between data processing module 120 and the control module 130, adopt outside interconnection standard, real-time video data and towing cable status data are sent to control module 120, and from control module 120, receive initializes configuration information and towing cable control command, and send to data processing unit 322, in should be, be an outside interconnection standard interface chip (PCI9054) with example;
CPCI interface unit 328, link to each other with data processing unit 322 and storage unit 324, realize that by cpci bus interface board is connected with the CPCI core bus, finish with cpci bus on the communication function of other integrated circuit boards, on the one hand be stored in road order sequenced data in the storage unit 324, receive on the cpci bus of back the operating state data of other integrated circuit boards on the other hand and send to data processing unit 322 and handle by CPCI High speed rear panel bus transfer buffer memory; This adopts CPCI interface chip (QL5064) in application example, it has the zero wait state concatenation ability of bursting, and the pci data transfer rate up to 600MB/s can be provided, and can realize handling up of big data quantity.
Fig. 4 is the composition synoptic diagram of an application example of control module 130 in the foregoing description.Please refer to interface board embodiment shown in Figure 1 control module application example as shown in Figure 4, mainly comprise pci interface 412, central processing unit (CPU) 414 and peripheral communications interface 416, wherein:
Pci interface 412, link to each other with data processing module 120, be used for realizing with data processing module 120 between communicate by letter, initializes configuration information and towing cable control command that CPU 414 is produced send to data processing module 120, receive the real-time video data and the towing cable status data of data processing module 120 transmissions and send to CPU 414; Using in the example is that MPC8270 chip pci interface unit is realized;
CPU 414, link to each other with pci interface 412, are used to produce initializes configuration information, data stream and the towing cable control command of whole interface board; Real-time video data that will receive in addition and towing cable status data are handled through format by custom protocol and are obtained formatted data, send to external control system by peripheral communications interface 416 then; Should use in the example, because interface board requires processing speed fast, real-time, what therefore adopt is a embedded type CPU chip (MPC8270);
Peripheral communications interface 416, comprise 100-M network Ethernet 462 and serial ports 464 two parts, all link to each other with CPU 414, be used to realize the communication function of interface board and external control system, wherein 100-M network Ethernet 462 is used for the formatted data that CPU 414 obtains is sent to external control system; Serial ports 464 is used to monitor the interface board duty, and finishes the interface board debugging.
Interface board of the present invention, based on the CPCI back plate design, on concrete an application of having realized, embodied following principal character:
(1) the cpci bus bandwidth is 64bit * 66MHz;
(2) towing cable interface operating rate can reach 320Mbit/s;
(3) the real-time receiving ability of upstream data is supported (1000 roads, 4kSPS sampling rate), (2000 roads, 2kSPS sampling rate) and (4000 roads, 1kSPS sampling rate) respectively greater than 12.96M Bytes/s;
(4) support at least 18 seconds continuous data collection and buffering;
(5) the system works dead time (a big gun data recording finishes and writes down the ready time to next big gun): 0 second;
Interface board of the present invention, based on the outside interconnection standard of compact (Compact PeripheralComponent Interconnect, be called for short: Compact PCI or CPCI) back plate design, adopt the embedded real time system VxWorks, cooperate high performance on-site programmable logic array (Field ProgrammableGate Array, be called for short: FPGA) with high capacity ddr sdram (Double DataRate Synchronous Dynamic Random Access Memory, be called for short: DDR SDRAM) etc., finish real-time reception and handle jumbo streamer seismic data, solved the problem of the big data transfer rate that the density three-dimensional earthquake-capturing brings.
This shows, interface board of the present invention has the ability of real-time collection high capacity streamer seismic data, receive streamer seismic data in real time by upstream data optical fiber, data are carried out the conversion of sequential to the road preface, and finish the extraction of streamer seismic data and the functions such as separation of various status datas.Interface board is also finished real-time Communication for Power function with underwater towing line by downlink optical fiber.
Though the disclosed embodiment of the present invention as above, the embodiment that described content just adopts for the ease of understanding the present invention is not in order to limit the present invention.Technician in any the technical field of the invention; under the prerequisite that does not break away from the disclosed spirit and scope of the present invention; can do any modification and variation what implement in form and on the details; but scope of patent protection of the present invention still must be as the criterion with the scope that appending claims was defined.

Claims (9)

1, a kind of towline data interface board that is used for geophysical survey, reception is also handled the streamer data that underwater towing line is uploaded, and it is characterized in that, comprising:
The towing cable interface module is used to receive described streamer data, passes the towing cable control command down to described underwater towing line;
Data processing module, link to each other with described towing cable interface module, be used for extracting real-time video data from described streamer data, described underwater towing line data are resolved and separated, obtain towing cable status data and geological data, and described geological data carried out the conversion of sequential to the road preface, the described road order sequenced data that is converted to is sent to the external record system; Also be used for described towing cable control command is sent to described towing cable interface module;
Control module links to each other with described data processing module, is used to produce described towing cable control command and sends to described data processing module, and described real-time video data and towing cable status data are sent to external control system.
2, interface board as claimed in claim 1 is characterized in that, described towing cable interface module comprises:
Interface unit is used for described streamer data is sent to described data processing unit, and described towing cable control command is sent to described underwater towing line;
String and converting unit link to each other with described interface unit and data processing unit, are used to finish the serial/parallel conversion of described streamer data and towing cable control command.
3, interface board as claimed in claim 2 is characterized in that:
Described interface unit, comprise at least optical interface and electrical interface at least one of them.
4, interface board as claimed in claim 3 is characterized in that:
Described optical interface comprises:
The data light interface is used for described streamer data is sent to described data processing module;
The order optical interface is used for described towing cable control command is sent to described underwater towing line;
Described electrical interface comprises:
The data electrical interface is used for described streamer data is sent to described data processing module;
The order electrical interface is used for described towing cable control command is sent to described underwater towing line.
5, interface board as claimed in claim 2 is characterized in that:
Described string and converting unit are used for described streamer data is converted to parallel signal, and described towing cable control command is converted to the serial differential signal.
6, interface board as claimed in claim 1 is characterized in that, described data processing module comprises:
Data processing unit is used to extract described real-time video data, obtains described towing cable status data and geological data, and described geological data is carried out the conversion of sequential to the road preface, obtains order sequenced data;
Storage unit links to each other with described data processing unit, is used for storing described road order sequenced data according to the road sequence address;
Outside interconnection standard interface unit, link to each other with described data processing unit, be used to adopt outside interconnection standard that described real-time video data and towing cable status data are sent to described control module, described towing cable control command is sent to described towing cable interface module;
The outside interconnection standard interface of compact unit links to each other with described storage unit, is used for by compact outside interconnection standard, and described road order sequenced data is sent to described external record system.
7, interface board as claimed in claim 6 is characterized in that:
Described data processing unit is field programmable gate array;
Described storage unit for adopting two ddr sdrams, constitutes the table tennis storage organization;
Described outside interconnection standard interface unit is outside interconnection standard interface chip;
Described, the outside interconnection standard interface of compact unit is the outside interconnection standard interface of compact chip.
8, interface board as claimed in claim 1 is characterized in that, described control module comprises:
Outside interconnection standard interface is used for described towing cable control command is sent to described data processing module, receives described real-time video data and towing cable status data that described data processing module sends;
Central processing unit links to each other with described outside interconnection standard interface, is used to produce described towing cable control command, described real-time video data and towing cable status data is formatd to handle obtain formatted data;
The peripheral communications interface links to each other with described central processing unit, is used for described formatted data is sent to described external control system.
9, interface board as claimed in claim 8 is characterized in that, described peripheral communications interface comprises:
Network interface is used for described real-time video data and towing cable status data are sent to external control system;
Serial ports is used to monitor described interface board duty, finishes described interface board debugging.
CNA2009100846993A 2009-05-19 2009-05-19 Towline data interface board for geophysical exploration Pending CN101561511A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101887635A (en) * 2010-07-11 2010-11-17 国家***第一海洋研究所 High-resolution multi-channel seismic exploration data transmission system at shallow layer of deepwater
CN101915937A (en) * 2010-07-16 2010-12-15 中国海洋石油总公司 Seismic data recording method and system of marine streamer
CN102075015A (en) * 2011-01-19 2011-05-25 中国海洋石油总公司 Towline high voltage direct current (DC) power supply for geophysical exploration
CN102141781A (en) * 2011-01-18 2011-08-03 中国海洋石油总公司 Waterfowl communication control panel for towrope towing control
CN102176057A (en) * 2011-01-31 2011-09-07 中国海洋石油总公司 Drag control system for marine seismic exploration towrope
CN102183798A (en) * 2011-01-30 2011-09-14 中国海洋石油总公司 Measurement and control system of in-ocean towed multi-linear array acoustic positioning device
CN102778876A (en) * 2012-07-24 2012-11-14 合肥国为电子有限公司 Master station of geophysical exploration data acquisition device
CN103064108A (en) * 2012-12-25 2013-04-24 中国海洋石油总公司 System and method of synchronous acquisition of ocean seismic data
CN105403911A (en) * 2015-11-02 2016-03-16 合肥国为电子有限公司 Main control system suitable for geophysical survey
CN105785432A (en) * 2014-12-17 2016-07-20 北京大学深圳研究生院 Multi-sensor-based violent earthquake impending monitoring system
CN107037482A (en) * 2017-04-05 2017-08-11 中国科学技术大学 A kind of ocean seismic exploration haulage cable data-interface plate based on MicroTCA frameworks
CN107315692A (en) * 2017-06-27 2017-11-03 中国船舶工业***工程研究院 A kind of sequential for marine geophysical prospecting streamer data controller is to road sequence converting system

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101887635A (en) * 2010-07-11 2010-11-17 国家***第一海洋研究所 High-resolution multi-channel seismic exploration data transmission system at shallow layer of deepwater
CN101915937A (en) * 2010-07-16 2010-12-15 中国海洋石油总公司 Seismic data recording method and system of marine streamer
CN102141781A (en) * 2011-01-18 2011-08-03 中国海洋石油总公司 Waterfowl communication control panel for towrope towing control
CN102075015A (en) * 2011-01-19 2011-05-25 中国海洋石油总公司 Towline high voltage direct current (DC) power supply for geophysical exploration
CN102075015B (en) * 2011-01-19 2012-08-15 中国海洋石油总公司 Towline high voltage direct current (DC) power supply for geophysical exploration
CN102183798B (en) * 2011-01-30 2013-06-19 中国海洋石油总公司 Measurement and control system of in-ocean towed multi-linear array acoustic positioning device
CN102183798A (en) * 2011-01-30 2011-09-14 中国海洋石油总公司 Measurement and control system of in-ocean towed multi-linear array acoustic positioning device
CN102176057B (en) * 2011-01-31 2012-12-26 中国海洋石油总公司 Drag control system for marine seismic exploration towrope
CN102176057A (en) * 2011-01-31 2011-09-07 中国海洋石油总公司 Drag control system for marine seismic exploration towrope
CN102778876A (en) * 2012-07-24 2012-11-14 合肥国为电子有限公司 Master station of geophysical exploration data acquisition device
CN103064108A (en) * 2012-12-25 2013-04-24 中国海洋石油总公司 System and method of synchronous acquisition of ocean seismic data
CN103064108B (en) * 2012-12-25 2016-03-02 中国海洋石油总公司 A kind of system and method for marine seismic data synchronous acquisition
CN105785432A (en) * 2014-12-17 2016-07-20 北京大学深圳研究生院 Multi-sensor-based violent earthquake impending monitoring system
CN105403911A (en) * 2015-11-02 2016-03-16 合肥国为电子有限公司 Main control system suitable for geophysical survey
CN107037482A (en) * 2017-04-05 2017-08-11 中国科学技术大学 A kind of ocean seismic exploration haulage cable data-interface plate based on MicroTCA frameworks
CN107315692A (en) * 2017-06-27 2017-11-03 中国船舶工业***工程研究院 A kind of sequential for marine geophysical prospecting streamer data controller is to road sequence converting system

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