CN101699319B - Towing cable collection synchronous control system and control plate for geophysical exploration - Google Patents
Towing cable collection synchronous control system and control plate for geophysical exploration Download PDFInfo
- Publication number
- CN101699319B CN101699319B CN2009102360886A CN200910236088A CN101699319B CN 101699319 B CN101699319 B CN 101699319B CN 2009102360886 A CN2009102360886 A CN 2009102360886A CN 200910236088 A CN200910236088 A CN 200910236088A CN 101699319 B CN101699319 B CN 101699319B
- Authority
- CN
- China
- Prior art keywords
- control
- acquisition
- module
- trigger
- control system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a towing cable collection synchronous control system and a control plate for geophysical exploration to synchronously control a towing cable. The synchronous control plate comprises a trigger module, a collection command control module, a control command processing module and a command distribution module, wherein the trigger module is used for receiving a collection command transmitted by a main control system; the collection command control module is used for receiving and analyzing the collection command retransmitted by the trigger module to obtain an inner control synchronous collection command; the control command processing module is used for receiving and analyzing a control command which aims at an underwater towing cable and is transmitted by the main control system to obtain an analyzing result; the command distribution module is used for distributing the inner control synchronous collection command and the analyzing result to a plurality of cable interface units. In the technical scheme of the invention, the invention can satisfy the important technical targets of synchronous collection between towing cables of a distributed earthquake collection system, synchronicity of demodulator probes on the towing cables, and the like.
Description
Technical field
The present invention relates to the geophysical survey field, relate in particular to a kind of towing cable collection synchronous control system and control panel that is used for geophysical survey.
Background technology
Along with geophysical exploratory development develops towards meticulous direction, the geophysical survey field is increasing to the demand of three-dimensional high-precision exploration, is promoting the continuous development of high-resolution 3-d seismic exploration technology.As far as a cover streamer seismic acquisition system, the synchronism of data acquisition is very crucial.In geophysical seismic prospecting, epicenter excitation time and seismograph log-on data acquisition time exist strict sequential.In epicenter excitation, the collection of seismograph log-on data could be set up correct zero-time (T0), obtains accurately reflection wave hourage, for latter earthquake Data Processing, explanation etc. lay the first stone.Therefore, guarantee that it is an important step during seismic prospecting is produced synchronously that each big gun epicenter excitation and data acquisition start.
Marine widely used streamer seismic instrument system is a spatially distributed system at present, and the process of data acquisition is accomplished in undersea towing cable array collection by towing, and the towing cable array is made up of many streamers, and the main frame of boat-carrying is a control module.Each geophone station is different with the relative position of main frame on each towing cable in the towing cable array and every the towing cable; The time of actual signal communication transmission is also different; Therefore the time that receives the collection synch command that main frame sends is also inconsistent; And also exist the collection synchronization delay between each data acquisition road, also be the moment that each data acquisition road startup is gathered in the system to exist difference.
Therefore; Distributed capture system for the many cables of three-dimensional; Adopt which type of simultaneous techniques to control, compensate; Make the synchronous error that reduces between each cable, each road, guarantee the synchronism of gathering on the synchronous acquisition between each towing cable, every the towing cable, also just become a technical barrier that needs to be resolved hurrily of seismic instrument development.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of towing cable collection synchronous control system and control panel that is used for geophysical survey, to realize the synchro control to towing cable.
In order to solve the problems of the technologies described above, the present invention at first provides a kind of towing cable collection synchro control plate that is used for geophysical survey, comprising:
Trigger module receives the acquisition that master control system is sent;
The acquisition control module links to each other with said trigger module, receives the said acquisition of said trigger module forwarding and resolves the instruction of acquisition internal control synchronous acquisition;
The control command processing module links to each other with said master control system, receives the control command that is directed against underwater towing line of said master control system transmission and resolves the acquisition analysis result; And
The instruction distribution module is connected with said acquisition control module and control command processing module, and said internal control synchronous acquisition instruction and analysis result are distributed to some cable interfaces unit.
Preferably, said trigger module comprises:
The internal trigger unit links to each other with said master control system and acquisition control module, receives said acquisition and is transmitted to said acquisition control module;
The external trigger unit links to each other with navigational system, rifle control system and acquisition control module, is used to receive said navigational system and sends the rifle control trigger pip of navigation trigger pip and the transmission of rifle control system and be transmitted to said acquisition control module;
Wherein, said acquisition control module is resolved said navigation trigger pip and rifle control trigger pip according to scheduled timing, obtains the instruction of external control synchronous acquisition and sends to said instruction distribution module.
Preferably, this synchro control plate further comprises:
The cascade output module links to each other with said external trigger unit, is used for cascade and exports said navigation trigger pip and rifle control trigger pip.
Preferably, this synchro control plate further comprises:
Feedback module links to each other with said master control system and acquisition control module, when being used for triggering command that said control command processing module receives that said master control system sends, producing trigger state information and feeds back to said master control system;
Wherein, the said control command that said master control system is sent comprises said triggering command.
In order to solve the problems of the technologies described above, the present invention also provides a kind of towing cable collection synchronous control system that is used for geophysical survey, comprising:
Master control system is sent acquisition and is reached the control command to underwater towing line;
The synchro control plate links to each other with said master control system, is used to receive said acquisition and resolves the instruction of acquisition internal control synchronous acquisition; Be used to receive said control command and resolve the acquisition analysis result; Also be used for said internal control synchronous acquisition instruction and analysis result are sent to some cable interfaces unit.
Preferably, this synchronous control system further comprises:
Navigational system links to each other with said synchro control plate, is used for sending the navigation trigger pip to said synchro control plate;
Rifle control system links to each other with said synchro control plate, is used for sending rifle control trigger pip to said synchro control plate;
Wherein, said synchro control plate is resolved said navigation trigger pip and rifle control trigger pip according to scheduled timing, obtains the instruction of external control synchronous acquisition.
Preferably, said synchro control plate comprises:
The internal trigger unit links to each other with said master control system, receives said acquisition;
The external trigger unit links to each other with navigational system, rifle control system, is used to receive said navigation trigger pip and rifle control trigger pip;
The acquisition control module links to each other with said internal trigger unit and external trigger unit, receives said acquisition and resolves the instruction of acquisition internal control synchronous acquisition; Receive said navigation trigger pip and rifle control trigger pip, said navigation trigger pip and rifle control trigger pip are resolved, obtain the instruction of external control synchronous acquisition according to scheduled timing;
The control command processing module links to each other with said master control system, receives said control command and resolves the acquisition analysis result; And
The instruction distribution module is connected with said acquisition control module and control command processing module, and said internal control synchronous acquisition instruction, the instruction of external control synchronous acquisition and analysis result are distributed to some cable interfaces unit.
Preferably, this synchro control plate further comprises:
The cascade output module links to each other with said external trigger unit, is used for cascade and exports said navigation trigger pip and rifle control trigger pip.
Preferably, this synchro control plate further comprises:
Feedback module links to each other with said master control system and acquisition control module, when being used for triggering command that said control command processing module receives that said master control system sends, producing trigger state information and feeds back to said master control system;
Wherein, the said control command that said master control system is sent comprises said triggering command.
The present invention is used for the real-time collection of marine streamer earthquake-capturing equipment to streamer seismic data, can be used as the collection synchronous control unit of indoor register instrument.Technical scheme of the present invention can satisfy the important technology indexs such as synchronism of each geophone station on synchronous acquisition between distributed each towing cable of earthquake acquisition system, each towing cable.
Other features and advantages of the present invention will be set forth in instructions subsequently, and, partly from instructions, become obvious, perhaps understand through embodiment of the present invention.The object of the invention can be realized through the structure that in instructions, claims and accompanying drawing, is particularly pointed out and obtained with other advantages.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of instructions, is used to explain the present invention with embodiments of the invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the composition synoptic diagram of towing cable collection synchro control plate embodiment of the present invention;
Fig. 2 is the composition synoptic diagram of another embodiment of towing cable collection synchro control plate of the present invention.
Embodiment
Below will combine accompanying drawing and embodiment to specify embodiment of the present invention, how the application technology means solve technical matters to the present invention whereby, and the implementation procedure of reaching technique effect can make much of and implement according to this.
Need to prove that if do not conflict, each characteristic among the embodiment of the invention and the embodiment can mutually combine, all within protection scope of the present invention.In addition; Can in computer system, carry out in the step shown in the process flow diagram of accompanying drawing such as a set of computer-executable instructions, and, though logical order has been shown in process flow diagram; But in some cases, can carry out step shown or that describe with the order that is different from here.
Towing cable collection synchro control plate (Command Synchronizing Module among the present invention; CSM) be ingredient in the streamer seismic acquisition and recording system; It is based on the outside interconnection standard of compact (Compact Peripheral Component Interconnect is called for short Compact PCI or CPCI) back plate design, is plug-in card behind the 6U Compact PCI of a standard; Adopt high performance on-site programmable logic array (Field Programmable Gate Array; Be called for short FPGA), receive and handle master control system instruction, outside navigation and rifle control synchronic command in real time, and be distributed to each collection towing cable unit synchronously; Realize high performance collection coincident indicator, play a part very crucial.
Fig. 1 is the composition synoptic diagram of towing cable collection synchro control plate embodiment of the present invention.As shown in Figure 1, the synchro control plate 10 of this embodiment, with master control system 20 and some cable interfaces unit (among the figure with cable interface unit 1, cable interface unit 2 ..., cable interface unit n illustrates) link to each other.This synchro control plate 10 as shown in Figure 1 mainly comprises trigger module 110, acquisition control module 120, control command processing module 130 and instruction distribution module 140, wherein:
Control command processing module 130 links to each other with master control system 20 and instruction distribution module 140, receives all control commands to underwater towing line that master control system 20 is sent, and this control command is resolved, and obtains analysis result and sends to instruction distribution module 140; Wherein comprise triggering command in this control command; And
In the embodiment shown in fig. 1; Synchro control plate 10 also comprises feedback module 150; This feedback module 150 links to each other with acquisition control module 120, control command processing module 130 and master control system 20; Be used for when control command processing module 130 receives the triggering command that master control system 20 sends, producing trigger state information, and this trigger state information is fed back to master control system 20; Wherein, this trigger state information is used for that sign triggers whether success and whether this triggering is effective triggering.
Fig. 2 is the composition synoptic diagram of another embodiment of towing cable collection synchro control plate of the present invention; In this another embodiment; Synchro control plate 10 links to each other with navigational system 30 and rifle control system 40, and the navigation that the synchronous acquisition of towing cable of the present invention is sent by navigational system 30 triggers the rifle control that (Start) signal and rifle control system 40 send and triggers (TB) signal common trigger.Navigational system 30 sends to trigger module 110 with Start signal and TB signal respectively with rifle control system 40, and trigger module 110 is given acquisition control module 120 with this Start signal and TB signal forwarding.After acquisition control module 120 receives this Start signal and TB signal, this Start signal and TB signal are resolved, obtain the synchronous acquisition instruction and send to instruction distribution module 140 according to scheduled timing.For the ease of distinguishing; The synchronous acquisition instruction that acquisition control module 120 is obtained in the time of can master control system being triggered is referred to as the instruction of internal control synchronous acquisition, and the synchronous acquisition instruction that acquisition control module 120 is obtained during with navigational system and rifle control system triggers is referred to as the instruction of external control synchronous acquisition.
Therefore, can the triggering mode that synchro control plate 10 is accepted master control system 20 be referred to as the internal trigger mode, the common trigger mode of synchro control plate 10 being accepted navigational system 30 and rifle control system 40 is referred to as the external trigger mode.Internal trigger mode and external trigger mode all can realize triggering function separately.Under the triggering mode, feedback module 150 produces trigger state information, and this trigger state information is fed back to master control system 20, navigational system 30 and rifle control system 40 outside.Also promptly, in the internal trigger mode, synchronization control module 10 produces trigger state information and feeds back to master control system 20, and under the triggering mode, synchronization control module 10 produces trigger state information and feeds back to master control system 20, navigational system 30 and rifle control system 40 outside.
In conjunction with embodiment illustrated in fig. 1, among another embodiment of shown in Figure 2 this, the trigger module 110 in the synchro control plate 10 comprises internal trigger unit 111 and external trigger unit 112.Internal trigger unit 111 in the trigger module 110 links to each other with master control system 20, and the acquisition that master control system 20 is sent is transmitted to acquisition control module 120.
The synchronous acquisition instruction that synchro control plate 10 of the present invention is used to trigger to the distribution of each towing cable interface unit through the instruction Dispatching Unit simultaneously and the analysis result of control command; The synchronous triggering of collection and the synchronized transmission of control command have been realized; Make each towing cable accept the synchronism that triggers, and guaranteed the synchronism of the control command that each towing cable reception master control system issues.
More for number of streamers, when a synchro control plate can not connect all towing cables simultaneously, can be through the mode of cascade, adopt the synchro control plate of some quantity to realize and being connected of all towing cables.As shown in Figure 2; Synchro control plate 10 also comprises cascade output module 160; Link to each other with external trigger unit 112; Be used for Start signal and TB signal that external trigger element 112 received and carry out cascade output,, realize the synchronous data collection control of a fairly large number of towing cable through the mode of cascade to output to another piece synchro control plate of cascade.For the internal trigger pattern, master control system 20 connects polylith synchro control plate simultaneously, realizes the synchronous data collection control to each towing cable.
The major function of synchro control plate is to realize through a high performance field programmable logic array (FPLA) (FieldProgrammable Gate Array is called for short FPGA) chip.The signal of COM serial port is connected with FPGA through the serial ports level transferring chip and accomplishes the level conversion of signal; The RS485 interface logic is in the inner realization of FPGA, and the interface level conversion is accomplished by the RS485 level transferring chip, and interconnected through RJ-45 interface and cable interface unit; The CPCI backboard adopts J3, J4, the J5 interface of standard; Outside trigger pip Start and TB are transistor-transistor logic (TTL) level; After being input to the synchro control plate; Coupling through an optocoupler; Export to a logic gate device again, the Start and the TB signal of formation and input signal homophase are being delivered to these two signals in the FPGA.
In a concrete application example; The inner each several part function that realizes the synchro control plate of FPGA; Universal asynchronous receiving-transmitting (Universal Asynchronous Receiver/Transmitter is called for short UART) logic interfacing module, the serial communication between realization and the master control system; The command stream forwarding module is realized parsing and the forwarding of synchro control plate to the master control order; The synch command processing module realizes control, the processing of inside and outside trigger pip, the functions such as generation of synchronous acquisition instruction; Totally six interfaces of UART_1～UART_6 realizes the RS485 communication protocol of the universal asynchronous receiving-transmitting of synchro control plates and six cable interface unit; First Input First Output (First Input First Output is called for short FIFO) is the inside FIFO that calls FPGA, is used for temporal data and order.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the memory storage and carry out, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize by calculation element.Like this, the present invention is not restricted to any specific hardware and software combination.
Though the embodiment that the present invention disclosed 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 under any the present invention in the technical field; Under the prerequisite of spirit that does not break away from the present invention and disclosed and scope; 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 (6)
1. a towing cable collection synchro control plate that is used for geophysical survey is characterized in that, comprises trigger module, acquisition control module, control command processing module and instruction distribution module:
Trigger module receives the acquisition that master control system is sent; Said trigger module comprises internal trigger unit and external trigger unit, wherein,
The internal trigger unit links to each other with said master control system and acquisition control module, receives said acquisition and is transmitted to said acquisition control module;
The external trigger unit links to each other with navigational system, rifle control system and acquisition control module, is used to receive said navigational system and sends the rifle control trigger pip of navigation trigger pip and the transmission of rifle control system and be transmitted to said acquisition control module;
The acquisition control module links to each other with said trigger module, receives the said acquisition of said trigger module forwarding and resolves the instruction of acquisition internal control synchronous acquisition; Said acquisition control module is resolved said navigation trigger pip and rifle control trigger pip according to scheduled timing, obtains the instruction of external control synchronous acquisition and sends to said instruction distribution module;
The control command processing module links to each other with said master control system, receives the control command that is directed against underwater towing line of said master control system transmission and resolves the acquisition analysis result; And
The instruction distribution module is connected with said acquisition control module and control command processing module, and said internal control synchronous acquisition instruction, the instruction of external control synchronous acquisition and analysis result are distributed to some cable interfaces unit simultaneously.
2. synchro control plate as claimed in claim 1 is characterized in that, this synchro control plate further comprises:
The cascade output module links to each other with said external trigger unit, is used for cascade and exports said navigation trigger pip and rifle control trigger pip.
3. according to claim 1 or claim 2 synchro control plate is characterized in that this synchro control plate further comprises:
Feedback module links to each other with said master control system and acquisition control module, when being used for triggering command that said control command processing module receives that said master control system sends, producing trigger state information and feeds back to said master control system;
Wherein, the said control command that said master control system is sent comprises said triggering command.
4. a towing cable collection synchronous control system that is used for geophysical survey is characterized in that, comprises master control system, navigational system, rifle control system and synchro control plate:
Master control system is sent acquisition and is reached the control command to underwater towing line;
Navigational system links to each other with said synchro control plate, is used for sending the navigation trigger pip to said synchro control plate;
Rifle control system links to each other with said synchro control plate, is used for sending rifle control trigger pip to said synchro control plate;
The synchro control plate links to each other with said master control system, is used to receive said acquisition and resolves the instruction of acquisition internal control synchronous acquisition; Be used to receive said control command and resolve the acquisition analysis result; Said synchro control plate is resolved said navigation trigger pip and rifle control trigger pip according to scheduled timing, obtains the instruction of external control synchronous acquisition; Also be used for said internal control synchronous acquisition instruction, the instruction of external control synchronous acquisition and analysis result are sent to some cable interfaces unit simultaneously; Said synchro control plate comprises:
The internal trigger unit links to each other with said master control system, receives said acquisition;
The external trigger unit links to each other with navigational system, rifle control system, is used to receive said navigation trigger pip and rifle control trigger pip;
The acquisition control module links to each other with said internal trigger unit and external trigger unit, receives said acquisition and resolves the instruction of acquisition internal control synchronous acquisition; Receive said navigation trigger pip and rifle control trigger pip, said navigation trigger pip and rifle control trigger pip are resolved, obtain the instruction of external control synchronous acquisition according to scheduled timing;
The control command processing module links to each other with said master control system, receives said control command and resolves the acquisition analysis result; And
The instruction distribution module is connected with said acquisition control module and control command processing module, and said internal control synchronous acquisition instruction, the instruction of external control synchronous acquisition and analysis result are distributed to some cable interfaces unit.
5. synchronous control system as claimed in claim 4 is characterized in that, this synchro control plate further comprises:
The cascade output module links to each other with said external trigger unit, is used for cascade and exports said navigation trigger pip and rifle control trigger pip.
6. synchronous control system as claimed in claim 4 is characterized in that, this synchro control plate further comprises:
Feedback module links to each other with said master control system and acquisition control module, when being used for triggering command that said control command processing module receives that said master control system sends, producing trigger state information and feeds back to said master control system;
Wherein, the said control command that said master control system is sent comprises said triggering command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102360886A CN101699319B (en) | 2009-10-20 | 2009-10-20 | Towing cable collection synchronous control system and control plate for geophysical exploration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102360886A CN101699319B (en) | 2009-10-20 | 2009-10-20 | Towing cable collection synchronous control system and control plate for geophysical exploration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101699319A CN101699319A (en) | 2010-04-28 |
| CN101699319B true CN101699319B (en) | 2012-07-04 |
Family
ID=42147782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102360886A Active CN101699319B (en) | 2009-10-20 | 2009-10-20 | Towing cable collection synchronous control system and control plate for geophysical exploration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101699319B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907723B (en) * | 2010-07-16 | 2012-04-18 | 中国海洋石油总公司 | Marine streamer seismic data acquisition device |
| CN101975966B (en) * | 2010-10-22 | 2012-08-15 | 中国海洋石油总公司 | Towrope simulator board for geophysical exploration |
| CN101975967B (en) * | 2010-10-22 | 2012-08-29 | 中国海洋石油总公司 | Towed cable simulation system 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 |
| 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 |
| CN104267702B (en) * | 2014-10-11 | 2017-05-31 | 哈尔滨工业大学 | Galatea type magnetic confinement of plasma device sequential control systems based on SOPC technologies |
| CN104502960A (en) * | 2014-11-12 | 2015-04-08 | 中国海洋石油总公司 | Towing cable acquisition system and mounting method |
| CN104777804A (en) * | 2015-02-04 | 2015-07-15 | 中国海洋石油总公司 | Air gun acquisition and control device |
| CN104570055A (en) * | 2015-02-04 | 2015-04-29 | 中国海洋石油总公司 | Seismic source control system of air gun |
| CN104808239B (en) * | 2015-04-27 | 2018-02-09 | 中国海洋石油总公司 | A kind of feedback signal amplifier for submarine cable earthquake-capturing operation |
| CN104849761B (en) * | 2015-05-21 | 2017-08-25 | 中国科学院声学研究所 | Pull detection system in a kind of acoustics deep-sea |
| CN106526676B (en) * | 2016-10-13 | 2018-08-07 | 中国船舶工业系统工程研究院 | A kind of data suitable for marine geophysical prospecting towing cable parse monitoring system |
| CN106371367B (en) * | 2016-10-13 | 2018-03-02 | 中国船舶工业系统工程研究院 | A kind of marine geophysical prospecting streamer data controller based on SATA interface |
| CN106772559A (en) * | 2016-12-28 | 2017-05-31 | 钦州市联冠咨询有限公司 | A kind of ocean bottom seismic data acquisition control system |
| CN107894609B (en) * | 2017-12-15 | 2024-04-09 | 合肥国为电子有限公司 | Low-power-consumption portable vibration trigger switch integrated with wireless transmitting function |
-
2009
- 2009-10-20 CN CN2009102360886A patent/CN101699319B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101699319A (en) | 2010-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101699319B (en) | Towing cable collection synchronous control system and control plate for geophysical exploration | |
| CN101312302B (en) | Parallel signal transmission method of uninterrupted power source | |
| CN102213768B (en) | Novel digital seismic detector based on computer network | |
| HUP9701136A2 (en) | Synchronizing method | |
| CN101778219B (en) | Device and method for synchronous working of plurality of camera heads | |
| CN103513274A (en) | Digital seismic sensor and acquisition device adapted to be connected together via two-conductor line | |
| CN104660989B (en) | Optical fiber-to-full configuration type Camera link real-time image optical transceiver based on FPGA | |
| CN104022828A (en) | Fiber data transmission method based on asynchronous communication mode | |
| CN100530259C (en) | Power system data transmission device | |
| CN109150490A (en) | The more board impulsive synchronization methods realized based on FPGA fibre optic data transmission | |
| CN101009041A (en) | Testing data communication interface device of infrared earth sensor based on FPGA | |
| CN103309837A (en) | Interface board card of CPCI (Compact Peripheral Component Interconnect) framework based on MIL-STD-1553B | |
| CN205038640U (en) | Solve SPI bus communication delayed SPI equipment | |
| CN102882624B (en) | PXI/PCI bus-based remote synchronization device of test signal source devices and method thereof | |
| CN201060487Y (en) | High speed configurable extension SPI bus | |
| CN103064108A (en) | System and method of synchronous acquisition of ocean seismic data | |
| CN104237935B (en) | Common data recording system architecture for geophysical exploration and constructing method of architecture | |
| CN110221560A (en) | A kind of multiplex pulse synchronous method based on optical fiber transmission | |
| CN106372020A (en) | High-speed long-distance transmission system of marine seismic data | |
| CN102346959A (en) | Remote acquisition system of analog signals | |
| CN101975966B (en) | Towrope simulator board for geophysical exploration | |
| CN103124233A (en) | Signal relay system and implementation method thereof | |
| CN104363050A (en) | Phased array TR component channel data automatic positioning method based on optical fiber transmission | |
| CN105099572B (en) | Control type communication system in a kind of signal processing machine | |
| CN110519034A (en) | A kind of precise synchronization technology of wire-link telemetry digital seismograph |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |