Low-speed-high-speed mixed pipeline type towline array system data transmission method
A high-speed hybrid, pipeline-type technology, applied in the field of geophysical exploration, can solve the problems of system data transmission link complexity, entanglement, unfavorable recording system data management system expansion, etc., to achieve the effect of simplifying the data transmission line structure and avoiding entanglement
Pending Publication Date: 2022-04-12
TIANJIN UNIV
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Problems solved by technology
[0003] In order to overcome the problems of complex system data transmission links existing in the multi-cable parallel data transmission mode of the existing streamer array system, which is not conducive to the data management of the recording system and the later system expansion, the present invention proposes a low-speed-high-speed hybrid The data transmission method of the streamlined cable array system adopts the "T-shape" topology to connect the working sections of the cable in the cable array system, and builds a special low-speed data transmission channel within the cable and a high-speed data transmission channel between the cables. Multi-cable parallel transmission is changed to a pipelined transmission combining low-speed within the cable and high-speed between cables, so as to simplify the structure of the data transmission line, solve the problem of winding at the line convergence section, and ensure that the data of each tow cable working section in the system is uploaded in an orderly manner. System of Record Data Management Lays the Groundwork
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[0016] The data transmission structure of the low-speed-high-speed mixed pipelined cable array system of the present invention is as follows: figure 1 As shown, it mainly includes: recording system 1, long-distance high-speed data transmission channel 2, multiple forwarding modules 3, inter-cable high-speed data transmission channel 4, multiple towing cable working sections 5, wherein the towing cable working section 5 passes through "T Type" structure is connected with forwarding module 3;
[0017] The towline working section 5 includes a data acquisition module 6, a hydrophone 7, and a low-speed data transmission channel 8 in the cable, wherein the data acquisition module 6 is connected in a serial form;
[0018] The internal data transmission structure of the data acquisition module 6 is as image 3 As shown, it mainly includes the data output interface 9 of the data acquisition module, the data input interface 10 of the data acquisition module, and the data receiving buff...
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The invention relates to a low-speed and high-speed mixed assembly line type towing cable array system data transmission method, which comprises a recording system, a long-distance high-speed data transmission channel, a plurality of forwarding modules, an inter-cable high-speed data transmission channel and a plurality of towing cable working sections, one towing cable working section corresponds to one forwarding module; the towrope working section comprises data acquisition modules, at least one hydrophone and an in-cable low-speed data transmission channel, and the data acquisition modules are connected in a serial mode; on one hand, the data acquisition module is used for receiving hydrophone signals transmitted by each hydrophone connected with the data acquisition module; on the other hand, carrying out a data sending task; the forwarding module comprises a cable data input interface, a forwarding module data output interface, a forwarding module data input interface, a cable data receiving buffer area and a forwarding module data receiving buffer area.
Description
technical field [0001] The invention belongs to the technical field of geophysical exploration, in particular to a data transmission method of a streamer array system. Background technique [0002] The marine seismic exploration system is the main equipment for the current development of marine resources. The current international mainstream marine seismic exploration system data transmission method is multi-cable parallel transmission. Each working cable section in the system completes data acquisition and transmission independently. Each working cable section It needs to be equipped with a separate data transmission line. The data transmission link of the whole system is relatively complex, and it is easy to cause transmission line entanglement in the line convergence area, which is not conducive to the expansion of the system structure in the later stage; at the same time, because each working cable section performs data transmission independently, each working cable secti...
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Login to View More IPC IPC(8): G01V1/38G01V1/22
Inventor 蒋佳佳姚庆旺黄霖段发阶傅骁
Owner TIANJIN UNIV