CN210666043U - A marine seismic data acquisition and control device - Google Patents
A marine seismic data acquisition and control device Download PDFInfo
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- CN210666043U CN210666043U CN201921391517.2U CN201921391517U CN210666043U CN 210666043 U CN210666043 U CN 210666043U CN 201921391517 U CN201921391517 U CN 201921391517U CN 210666043 U CN210666043 U CN 210666043U
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Abstract
本实用新型公开了一种海洋地震数据采集控制装置，包括电源模块、控制模块、通讯模块、测试模块和数据模块，有效执行地震数据的采集、信号转化、存储和传输，保证了地震数据采集的精密性，从而保证数据的可靠性和可采信度。多个采集通道的设置，每个采集通道对应适当数量的地震数据采集元件即水听器，有效压制了数据采集中的随机噪声，进一步保证了数据采集的精密性，从而保证数据的可靠性和可采信度，使得勘探能够获得良好的探测信息。
The utility model discloses a marine seismic data acquisition control device, which comprises a power supply module, a control module, a communication module, a test module and a data module, which effectively executes seismic data acquisition, signal conversion, storage and transmission, and ensures the acquisition of seismic data. so as to ensure the reliability and admissibility of the data. The setting of multiple acquisition channels, each acquisition channel corresponds to an appropriate number of seismic data acquisition elements, namely hydrophones, effectively suppresses random noise in data acquisition, and further ensures the precision of data acquisition, thereby ensuring data reliability and reliability. Admissible reliability enables exploration to obtain good detection information.
Description
Technical Field
The utility model relates to an ocean artificial reflection seismic exploration technical field especially relates to a marine seismic data acquisition controlling means.
Background
The marine artificial reflection seismic exploration is an important geophysical exploration method and has important strategic significance for resource investigation, sedimentary structure unit division, engineering geological disaster investigation and the like, particularly marine geological structure detection, marine oil gas and natural gas hydrate detection, submarine disaster geological phenomenon detection and the like. Generally, an artificial seismic source is used to excite seismic waves, and information of formations below the sea bottom is obtained by collecting seismic source signals reflected by the sea bottom. Therefore, the accuracy of data acquisition and the timeliness of data processing of the seismic data acquisition control device are very important for ocean research, seabed detection and analysis. In the prior art, the accuracy of seismic data acquisition and the timeliness of data processing cannot meet the requirement of increasingly refined marine research.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a marine seismic data gathers controlling means can gather more meticulous seismic signal to obtain good detection information.
In order to achieve the purpose, the utility model provides a marine seismic data acquisition control device, which comprises a power module, a control module, a communication module, a test module and a data module; the power supply module is an electric energy supply device of the marine seismic data acquisition control device and is used for converting electric energy into different voltages and supplying the different voltages to all components of the marine seismic data acquisition control device; the communication module is used for executing data transmission and compiling and transmission channel equalization and management; the control module performs data acquisition, storage, transmission and system self-detection according to the control instruction, stores the detection result as required and transmits the detection result to the data transmission unit through the communication module; the data module is used for receiving seismic data acquired by the seismic data acquisition element and carrying out signal filtering, amplification, digitization and storage; the test module is used for executing the performance test of the marine seismic data acquisition control device and the performance test of the seismic data acquisition element.
Further, the data module includes at least one data acquisition channel connected to the seismic data acquisition element, each data acquisition channel including a 32-bit analog-to-digital converter, a switching circuit, a signal conditioning circuit, and a signal acquisition circuit.
Further, the seismic data acquisition element comprises a hydrophone, the hydrophone is used for acquiring the seismic data and converting the seismic data into an electric signal, and the data module is used for carrying out digital processing on the seismic data processed by the electric signal through the 32-bit analog-to-digital converter, then sending the processed seismic data to the control module for storage and sending the processed seismic data to the data transmission unit through the communication module; each data acquisition channel corresponds to at least one hydrophone.
Furthermore, each data module correspondingly controls four acquisition channels, and each acquisition channel corresponds to four to six hydrophones connected in series or in parallel.
Furthermore, the control command is sent to the control module by a multi-channel digital seismic acquisition main control through a streamer controller, and the electric energy of the power supply module is obtained from the streamer controller.
Further, the performance test of the marine seismic data acquisition control device and the performance test of the seismic data acquisition element, which are performed by the test module, specifically include: the test module sends out test waves according to instructions of multi-channel digital earthquake acquisition main control, each data acquisition channel in the data module receives the test waves, and the consistency of the data acquisition channels is analyzed by analyzing the response waveforms of all the data acquisition channels.
Further, the test wave is a sine wave or a sawtooth wave.
Further, the main controller and the data processor of the control module are high-performance embedded ARM.
Further, the power module comprises an input protection circuit and a voltage regulation circuit, wherein the input protection circuit is used for preventing circuit damage caused by input over/under voltage and over/under current, and the voltage regulation circuit is used for executing voltage conversion so as to meet the required working voltage of each component of the marine seismic data acquisition control device.
Further, the communication module comprises a data transmission distribution circuit, a line driving/receiving circuit and a large line equalization circuit
The utility model provides a marine seismic data acquisition control device, including power module, control module, communication module, test module and data module, collection, signal conversion, storage and the transmission of effective execution seismic data have guaranteed seismic data acquisition's precision to guarantee the reliability and the confidence level of data. Due to the arrangement of the plurality of acquisition channels, random noise in data acquisition can be effectively suppressed by each acquisition channel corresponding to a proper number of seismic data acquisition elements, namely hydrophones, and a 32-bit analog-digital converter can obtain more refined seismic signals, so that the reliability and the reliability of data can be ensured, and the exploration can obtain good detection information.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic view of a working principle of a marine seismic data acquisition control device provided by an embodiment of the present invention;
fig. 2 is the embodiment of the present invention provides a schematic diagram of the application principle of the marine seismic data acquisition control device.
Detailed Description
The utility model discloses a solve the problem that prior art exists, provide a marine seismic data acquisition controlling means, can gather the seismic signal that becomes more meticulous to obtain good detection information.
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given to the embodiments, structures, features and effects according to the present invention in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, with the specific understanding that: both a and B may be included, a may be present alone, or B may be present alone, and any of the three cases can be provided.
Referring to fig. 1, an embodiment of the present invention provides a marine seismic data acquisition control device 10, which includes a power module, a control module, a communication module, a test module, and a data module;
the power supply module is an electric energy supply device of the marine seismic data acquisition control device and is used for converting electric energy into different voltages and supplying the different voltages to all components of the marine seismic data acquisition control device; the communication module is used for executing data transmission and compiling and transmission channel equalization and management; the control module performs data acquisition, storage, transmission and system self-detection according to the control instruction, stores the detection result as required and transmits the detection result to the data transmission unit through the communication module; the data module 100 is used for receiving seismic data acquired by a seismic data acquisition element, and performing signal filtering, amplification, digitization and storage; the test module is used for executing the performance test of the marine seismic data acquisition control device and the performance test of the seismic data acquisition element.
The embodiment of the utility model provides a marine seismic data gathers controlling means, including power module, control module, communication module, test module and data module, collection, storage and the transmission that can effectively carry out seismic data have guaranteed seismic data's precision to guarantee the reliability and the confidence coefficient of data, can obtain good seismic data detection information.
Referring further to fig. 1, the data module includes at least one data acquisition channel coupled to the seismic data acquisition element, each data acquisition channel including a switching circuit, a signal conditioning circuit, and a signal acquisition circuit (not shown in fig. 1).
Further, the seismic data acquisition element comprises a hydrophone, the hydrophone is used for acquiring the seismic data and converting the seismic data into an electric signal, and the data module is used for carrying out digital processing on the seismic data processed by the electric signal through the 32-bit analog-to-digital converter, then sending the processed seismic data to the control module for storage and sending the processed seismic data to the data transmission unit through the communication module; each data acquisition channel corresponds to at least one hydrophone. The embodiment of the utility model provides a can obtain the seismic signal that becomes more meticulous through 32 analog-to-digital converter.
Preferably, each data module controls four acquisition channels correspondingly, each acquisition channel corresponds to four to six hydrophones connected in series or in parallel, wherein the connection relationship between the series and the parallel is the same as the principle in the circuit, and the detailed description and the illustration are not made herein. It should be noted that although fig. 1 shows four hydrophones for each acquisition channel, this is not to be understood as meaning that each acquisition channel can only correspond to four hydrophones. In practical application, the number of hydrophones corresponding to the acquisition channels is flexibly designed and selected according to specific requirements. Preferably, to suppress random noise, four to six hydrophones are assigned to each acquisition channel.
For better understanding of the practical application of the embodiments of the present invention, please refer to fig. 2, the control command received by the control module is sent by the multi-channel digital seismic acquisition master through the streamer controller, and the power of the power module is obtained from the streamer controller.
Further, the performance test of the marine seismic data acquisition control device and the performance test of the seismic data acquisition element, which are performed by the test module, specifically include: the test module sends out test waves according to the control instruction, each data acquisition channel in the data module receives the test waves, and the consistency of the data acquisition channels is analyzed by analyzing the response waveforms of all the data acquisition channels. In practical application, when a control instruction sent by the multi-channel digital earthquake acquisition master control is a self-detection instruction, the test module sends a test wave after receiving the self-detection instruction, the test wave can be set to be a sine wave or a sawtooth wave, each data acquisition channel in the data module can receive the test wave and make a response, and a professional can analyze the consistency of the data acquisition channels by analyzing the response waveforms of all the data acquisition channels.
Preferably, the main controller and the data processor of the control module are high-performance embedded ARM.
Preferably, the power module includes an input protection circuit for preventing circuit damage caused by input over/under voltage and over/under current, and a voltage regulation circuit for performing voltage conversion to meet required operating voltages of the components of the marine seismic data acquisition control device.
Preferably, the communication module includes a data transmission distribution circuit, a line driving/receiving circuit, and a large line equalization circuit.
In actual marine seismic data exploration, a plurality of marine seismic data acquisition control devices and data transmission units correspondingly connected with the marine seismic data acquisition control devices are provided, the set number is n, n is a positive integer greater than or equal to 1, seismic data are sent to the previous data transmission unit, namely the n-1-th data transmission unit, the data of the two units are packaged and then transmitted to the n-2-th data transmission unit, the data of the three units are packaged and then transmitted forwards, and the like until the data are transmitted to a multichannel digital seismic acquisition main control unit. According to the transmission mode, the transmission distance is relatively short, the error rate of data transmission can be reduced, and the quality of data transmission is improved. And each data transmission unit can label the data when transmitting from the last data transmission unit, which is beneficial to arranging the data. It should be noted that, only the signal flow path of data transmission is described here, and a description of data conversion during data transmission is not included, for example, conversion from analog to digital, conversion from digital to optical signal for faster and more accurate transmission, etc. is not specifically described.
The embodiment of the utility model provides a marine seismic data gathers controlling means, including power module, control module, communication module, test module and data module, collection, signal conversion, storage and the transmission of effective execution seismic data have guaranteed seismic data's precision to guarantee the reliability and the confidence level of data. Due to the arrangement of the plurality of acquisition channels, random noise in data acquisition can be effectively suppressed by each acquisition channel corresponding to a proper number of seismic data acquisition elements, namely hydrophones, and a 32-bit analog-digital converter can obtain more refined seismic signals, so that the reliability and the reliability of data can be ensured, and the exploration can obtain good detection information.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A marine seismic data acquisition control device is characterized by comprising a power module, a control module, a communication module, a test module and a data module;
the power supply module is an electric energy supply device of the marine seismic data acquisition control device and is used for converting electric energy into different voltages and supplying the different voltages to all components of the marine seismic data acquisition control device; the communication module is used for executing data transmission and compiling and transmission channel equalization and management; the control module performs data acquisition, storage, transmission and system self-detection according to the control instruction, stores the detection result as required and transmits the detection result to the data transmission unit through the communication module; the data module is used for receiving seismic data acquired by the seismic data acquisition element and carrying out signal filtering, amplification, digitization and storage; the test module is used for executing the performance test of the marine seismic data acquisition control device and the performance test of the seismic data acquisition element.
2. The marine seismic data acquisition control device of claim 1, wherein the data module comprises at least one data acquisition channel connected to the seismic data acquisition element, each data acquisition channel comprising a 32-bit analog-to-digital converter, switching circuitry, signal conditioning circuitry, and signal acquisition circuitry.
3. The marine seismic data acquisition control device of claim 2, wherein the seismic data acquisition element comprises a hydrophone, the hydrophone is used for acquiring the seismic data and converting the seismic data into electrical signals, and the data module is used for performing digital processing on the seismic data after the electrical signals are processed by the 32-bit analog-to-digital converter, sending the processed seismic data to the control module for storage and sending the processed seismic data to the data transmission unit through the communication module; each data acquisition channel corresponds to at least one hydrophone.
4. The marine seismic data acquisition control device of claim 3, wherein each data module controls four acquisition channels, and each acquisition channel corresponds to four to six hydrophones connected in series or in parallel.
5. The marine seismic data acquisition control device of claim 1, wherein the control commands are sent from a multi-channel digital seismic acquisition master to the control module via a streamer controller, and power for the power module is taken from the streamer controller.
6. The marine seismic data acquisition control device of any of claims 1 to 5, wherein the main controller and the data processor of the control module are high performance embedded ARM.
7. The marine seismic data collection control device of any of claims 1 to 5, wherein the power module comprises an input protection circuit for preventing circuit damage due to input over/under voltage and over/under current, and a voltage regulation circuit for performing voltage conversion to meet a required operating voltage of each component of the marine seismic data collection control device.
8. The marine seismic data acquisition control device of any of claims 1 to 5, wherein the communication module comprises a data transmission distribution circuit, a line drive/receive circuit and a large line equalization circuit.
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| CN110412654A (en) * | 2019-08-26 | 2019-11-05 | 自然资源部第一海洋研究所 | A marine seismic data acquisition control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110412654A (en) * | 2019-08-26 | 2019-11-05 | 自然资源部第一海洋研究所 | A marine seismic data acquisition control device |
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