Audio magnetotelluric exploration data acquisition system

Abstract

The invention relates to the technical field of audio magnetotelluric, in particular to an audio magnetotelluric probing data acquisition system which comprises a data acquisition end, a detection signal transmission line, a feedback transmission line and a processing end. In each unit module, each conductive contact is distributed with an identifier, and the processing module is used for detecting the conductive contact which is currently in a conducting state, taking the identifier of the conductive contact which is in the conducting state as a form indicator, and sending the form indicator to the processing end. And the processing end is used for determining the actual form of the detection signal transmission line according to the form indicator of each unit module, and determining the position coordinate of the data acquisition end according to the actual form. The method can effectively reduce the data distortion risk and error risk when the data acquisition end is used in a large scale, guarantees the accurate detection process, and provides a guarantee for the actual application process of audio magnetotelluric exploration.

Description

Technical Field

[0001] This invention relates to the field of audio magnetotelluric technology, and more specifically, to an audio magnetotelluric survey data acquisition system. Background Technology

[0002] With the continuous development of audio-frequency magnetotelluric (AFM) detection technology, its detection range, sensitivity, and accuracy have been continuously improved. However, in actual use, even though the quality of AFM detection equipment itself is quite good, it still faces the problem of poor actual detection performance, especially when there are a large number of probes, which makes it easier for the detection data to be distorted or erroneous.

[0003] In view of the above, this application is hereby submitted. Summary of the Invention

[0004] The purpose of this invention is to provide an audio magnetotelluric survey data acquisition system, which can effectively reduce the risk of data distortion and error when the data acquisition terminal is used in large quantities, ensure the accuracy of the detection process, and provide a guarantee for the practical application of audio magnetotelluric surveys.

[0005] The embodiments of the present invention are implemented as follows: An audio magnetotelluric survey data acquisition system includes: a data acquisition terminal, a detection signal transmission line, a feedback transmission line, and a processing terminal.

[0006] The detection signal transmission line is connected between the data acquisition end and the processing end to send the detection data from the data acquisition end to the processing end.

[0007] The detection signal transmission line has a shape detection component, which includes several unit modules. Each unit module includes a mating ball and a mating seat, with the mating ball fixedly connected to one end wall of the mating seat.

[0008] The mating ball has multiple conductive contacts on its surface away from the mating seat, arranged in an array along the surface of the mating ball.

[0009] The other end wall of the mating seat has a mating groove for mating with a mating ball of another unit module, so that the mating ball can be omnidirectionally oscillating within it. A conductive terminal for electrical contact with a conductive contact is fixedly installed in the mating groove. When the mating ball is mated in the mating groove, the conductive terminal is in contact with at least one conductive contact and is electrically connected.

[0010] The mating base contains a processing module. Each conductive contact of the mating ball is electrically connected to the processing module, and the conductive terminals are also electrically connected to the processing module. For the conductive terminals and conductive contacts of the same unit module, they are indirectly electrically connected through the processing module.

[0011] The unit modules are arranged sequentially along the length of the detection signal transmission line, and the mating seats are arranged along the length of the detection signal transmission line. Adjacent unit modules are mated by mating balls and mating grooves.

[0012] The unit module at the end of the morphology detection component closer to the processing end is electrically connected to the processing end, and the unit module at the end of the morphology detection component farther from the processing end is electrically connected to the feedback transmission line. The other end of the feedback transmission line is electrically connected to the processing end to form a detection loop.

[0013] In each unit module, each conductive contact is assigned an identifier. The processing module is used to detect the conductive contacts that are currently in the conducting state, use the identifier of the conductive contacts in the conducting state as a form indicator, and send the form indicator to the processing end.

[0014] The processing unit determines the actual shape of the detection signal transmission line based on the shape indicators of each unit module, and determines the position coordinates of the data acquisition end based on the actual shape. When the position coordinates deviate from the predetermined position, the processing unit issues a prompt to the user.

[0015] Furthermore, the cavity of the mating groove is hemispherical. The mating seat also has an anti-detachment ring to prevent the mating ball from falling out of the mating groove, and the anti-detachment ring is detachably fitted to the mating seat.

[0016] Furthermore, the edges of adjacent conductive contacts are fitted together and insulated.

[0017] Furthermore, the diameter of the conductive terminal is slightly smaller than the diameter of the conductive contact.

[0018] Furthermore, when determining the actual shape, the processing end is used to determine the corresponding conductive contacts in the conducting state according to the shape indicators of each unit module, and to determine the rotation direction and rotation angle of the mating ball according to the specific position of the conductive contacts in the conducting state on the mating ball, and to determine the relative positional relationship between the corresponding two unit modules according to the rotation direction and rotation angle, thereby determining the relative positional relationship between all unit modules in the shape detection component, and thus obtaining the current shape of the shape detection component.

[0019] The processing end is used to take the current shape of the shape detection component as the actual shape of the detection signal transmission line.

[0020] The beneficial effects of the technical solutions in the embodiments of the present invention include: In the audio-frequency magnetotelluric survey data acquisition system provided in this embodiment of the invention, when the position of the processing end remains unchanged, the relative positional relationship between the data acquisition end and the processing end is fixed after all data acquisition ends are deployed. Through this method, the position of each data acquisition end can be monitored synchronously during the detection process. If the relative positional relationship between the data acquisition end and the processing end remains unchanged from beginning to end, it indicates that the installation of the corresponding data acquisition end is stable and there are no issues of loosening, offset, or detachment. If the relative positional relationship between the data acquisition end and the processing end changes, it indicates that the corresponding data acquisition end has become loose, offset, or detached. The specific type of problem can be determined by the degree of change in the relative positional relationship. In this case, it means that the corresponding data acquisition end has deviated from its original detection position, the reliability of the corresponding detection data needs to be corrected, and the corresponding data acquisition end needs to be reinstalled and repositioned.

[0021] The above method enables monitoring of the detection points at the data acquisition terminals. When the location coordinates of the data acquisition terminals deviate from the predetermined position, the processing terminal sends a prompt to the user so that the corresponding data acquisition terminals can be processed immediately to avoid affecting the overall detection work.

[0022] Overall, the audio magnetotelluric survey data acquisition system provided in this embodiment of the invention can effectively reduce the risk of data distortion and error when the data acquisition end is used in large quantities, ensure the accuracy of the detection process, and provide a guarantee for the practical application of audio magnetotelluric surveys. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the overall structure of the audio magnetotelluric survey data acquisition system provided in an embodiment of the present invention; Figure 2 This is a three-dimensional structural diagram of the unit module; Figure 3 This is a schematic diagram of the internal structure of the unit module; Figure 4 This is a schematic diagram showing the interaction between adjacent unit modules; Figure 5 This is a structural diagram of one end of the unit module where the mating ball is located; Figure 6A schematic diagram of the structure of the mating seat of the unit module away from the mating ball; Figure 7 This is a schematic diagram of the first type of mating between a conductive terminal and a conductive contact; Figure 8 This is a schematic diagram illustrating the second type of mating between a conductive terminal and a conductive contact. Figure 9 This is a schematic diagram of the third type of mating between conductive terminals and conductive contacts.

[0025] Explanation of reference numerals in the attached figures: Data acquisition terminal 100; detection signal transmission line 200; unit module 300; mating ball 310; conductive contact 311; mating seat 320; mating groove 321; conductive terminal 322; processing module 323; anti-detachment ring 324; connecting post 330; feedback transmission line 400; processing terminal 500. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] Furthermore, the terms "parallel" and "perpendicular" do not imply that components must be absolutely parallel or perpendicular, but rather that they can be slightly tilted. For example, "parallel" simply means that its direction is more parallel than "perpendicular," not that the structure must be perfectly parallel, but that it can be slightly tilted.

[0030] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] The inventors of this application have discovered that even if the data acquisition terminal 100 is of good quality, in actual use, especially when using the data acquisition terminal 100 in batches, if the position of one or more data acquisition terminals 100 shifts or becomes loose, causing the actual position of some data acquisition terminals 100 to deviate from the predetermined position, it will directly affect the overall data accuracy. This is also an important factor affecting and interfering with the application effect of the data acquisition terminal 100.

[0032] To overcome the shortcomings of existing technologies, please refer to Figures 1-6 This embodiment provides an audio magnetotelluric survey data acquisition system, which includes: a data acquisition terminal 100, a detection signal transmission line 200, a feedback transmission line 400, and a processing terminal 500.

[0033] The detection signal transmission line 200 is connected between the data acquisition terminal 100 and the processing terminal 500 to send the detection data from the data acquisition terminal 100 to the processing terminal 500. The processing terminal 500 processes the detection data to obtain the required result data.

[0034] It is understandable that, in practical applications, the specific number of data acquisition terminals 100 can be flexibly selected according to actual needs. The specific model of the data acquisition terminals 100 can also be flexibly selected according to actual needs.

[0035] The detection signal transmission line 200 has a shape detection component, which includes several unit modules 300. Each unit module 300 includes a mating ball 310 and a mating seat 320. The mating seat 320 is arranged along the length of the detection signal transmission line 200, and the mating ball 310 is fixedly connected to one end wall of the mating seat 320. In this embodiment, the mating seat 320 is rectangular, and the mating ball 310 is spherical. The mating ball 310 is fixedly connected to one end wall of the mating seat 320 by a connecting post 330. For the same unit module 300, the mating ball 310, the connecting post 330, and the mating seat 320 are coaxially arranged, but this is not a limitation.

[0036] A plurality of conductive contacts 311 are provided on the surface of the mating ball 310 away from the mating seat 320. The conductive contacts 311 are arranged in an array along the surface of the mating ball 310. In this embodiment, the conductive contacts 311 are distributed on the spherical surface of the mating ball 310 away from the mating seat 320, but are not limited thereto.

[0037] The other end wall of the mating seat 320 is provided with a mating groove 321 for mating with the mating ball 310 of another unit module 300, so as to facilitate mating between two adjacent unit modules 300. During mating, the mating ball 310 of one unit module 300 mates into the mating groove 321 of its adjacent unit module 300, such as... Figure 4 As shown, the unit modules 300 are arranged in sequence to form a complete shape detection component.

[0038] When the mating ball 310 is mated in the mating groove 321, the mating ball 310 can swing in all directions relative to the mating seat 320, thereby realizing the omnidirectional swing mating between adjacent unit modules 300.

[0039] A conductive terminal 322 for electrical engagement with a conductive contact 311 is fixedly installed within the mating groove 321. When the mating ball 310 is mated within the mating groove 321, the conductive terminal 322 can contact and electrically conduct with at least one conductive contact 311. In this embodiment, the conductive terminal 322 is located in the middle of the groove wall of the mating groove 321, but is not limited thereto.

[0040] The mating seat 320 contains a processing module 323. Each conductive contact 311 of the mating ball 310 is electrically connected to the processing module 323. Specifically, each conductive contact 311 is electrically connected to the processing module 323 through an independent line / channel. The conductive terminal 322 is also electrically connected to the processing module 323. For the conductive terminal 322 and conductive contact 311 of the same unit module 300, they are indirectly electrically connected through the processing module 323. That is, in the same unit module 300, the conductive contact 311, the processing module 323, and the conductive terminal 322 are electrically connected sequentially. When adjacent unit modules 300 are mated through the mating ball 310 and the mating groove 321, the two adjacent unit modules 300 can be electrically connected through the mating of the conductive terminal 322 and the conductive contact 311. In this way, linear electrical conduction is achieved in the entire shape detection assembly.

[0041] The unit modules 300 are arranged sequentially along the length of the detection signal transmission line 200, and the mating seats 320 are arranged along the length of the detection signal transmission line 200. Adjacent unit modules 300 are mated by mating balls 310 and mating grooves 321. The mating seat 320 of each unit module 300 is fixedly connected to the outer wall of the detection signal transmission line 200.

[0042] The unit module 300 at the end of the morphology detection component closer to the processing end 500 is electrically connected to the processing end 500, and the unit module 300 at the end of the morphology detection component farther from the processing end 500 is electrically connected to the feedback transmission line 400. The other end of the feedback transmission line 400 is electrically connected to the processing end 500 to form a detection loop.

[0043] It should be noted that if, in the shape detection component, along the length of the detection signal transmission line 200, the mating balls 310 of the unit module 300 are all located on the side of the mating seat 320 away from the processing end 500, then the unit module 300 at the end of the shape detection component closer to the processing end 500 is electrically connected to the processing end 500 through the conductive terminal 322, and the unit module 300 at the end of the shape detection component away from the processing end 500 is electrically connected to the feedback transmission line 400 through the conductive contact 311, and all the conductive contacts 311 of this unit module 300 are electrically connected to the feedback transmission line 400.

[0044] If, in the shape detection component, along the length of the detection signal transmission line 200, the mating balls 310 of the unit module 300 are all located on the side of the mating seat 320 closer to the processing end 500, then the unit module 300 at the end of the shape detection component closer to the processing end 500 is electrically connected to the processing end 500 through conductive contacts 311, and all conductive contacts 311 of this unit module 300 are electrically connected to the processing end 500, while the unit module 300 at the end of the shape detection component away from the processing end 500 is electrically connected to the feedback transmission line 400 through conductive terminals 322.

[0045] In each unit module 300, each conductive contact 311 is assigned an identifier. That is, the processing module 323 can determine which conductive contact 311 is currently in a conductive state by recognizing the identifier of the channel that is currently in a conductive state.

[0046] The processing module 323 is used to detect the conductive contact 311 that is currently in a conducting state, uses the identifier of the conductive contact 311 in the conducting state as a shape indicator, and sends the shape indicator to the processing terminal 500. It should be noted that the processing module 323 can send the shape indicator to the processing terminal 500 through the detection circuit, or it can set up an additional transmission channel for sending the shape indicator, and is not limited to this. The specific method can be flexibly set according to actual needs, and this application does not impose specific restrictions.

[0047] The processing end 500 is used to determine the actual shape of the detection signal transmission line 200 according to the shape indicator of each unit module 300, and to determine the position coordinates of the data acquisition end 100 according to the actual shape.

[0048] Since the detection signal transmission line 200 may be straight, bent, or partially straight and partially bent when the data acquisition terminal 100 is arranged, the specific shape of the detection signal transmission line 200 will vary depending on factors such as the length of the detection signal transmission line 200 and the arrangement of the data acquisition terminal 100.

[0049] When the detection signal transmission line 200 is taut, the shape detection component also becomes straight, and each unit module 300 is arranged along the length of the detection signal transmission line 200. At this time, the mating balls 310 and mating seats 320 of all unit modules 300 are basically in a coaxial setting.

[0050] When the detection signal transmission line 200 bends, the shape detection component also takes on a bent configuration. Each unit module 300 deflects to a corresponding degree as the shape of the shape detection component changes, that is, adjacent unit modules 300 will deflect to a corresponding degree.

[0051] Therefore, when the actual shape of the detection signal transmission line 200 is different, the shape detection component also presents the corresponding configuration, and the relative deflection direction and degree of deflection between adjacent unit modules 300 are also different.

[0052] When the relative deflection direction and degree of deflection between adjacent unit modules 300 are different, the conductive terminal 322 will contact the conductive contact 311 at different positions on the mating ball 310. Thus, by determining the conductive contact 311 that is currently in the conducting state, the relative deflection direction and degree of deflection (i.e., relative positional relationship) between the corresponding two unit modules 300 can be determined. Therefore, based on the shape indicators sent back by all unit modules 300 in the shape detection component, the relative positional relationship of all unit modules 300 in the entire shape detection component can be determined. Finally, the configuration / shape presented by the shape detection component is used to characterize the actual shape of the detection signal transmission line 200.

[0053] Specifically, when determining the actual shape, the processing end 500 includes: determining the corresponding conductive contacts 311 in the conducting state according to the shape indicators of each unit module 300; determining the rotation direction and rotation angle of the mating ball 310 according to the specific position of the conductive contacts 311 in the conducting state on the mating ball 310; and determining the relative positional relationship between the corresponding two unit modules 300 according to the rotation direction and rotation angle. Based on this, the relative positional relationship between all unit modules 300 in the shape detection component is determined, thereby obtaining the current shape of the shape detection component. The current shape of the shape detection component is used as the actual shape of the detection signal transmission line 200.

[0054] In this way, the actual shape of the detection signal transmission line 200 of each data acquisition end 100 during the detection process can be determined. Once the actual shape of the detection signal transmission line 200 is determined, a three-dimensional model of each detection signal transmission line 200 can be established based on the actual length of each detection signal transmission line 200, thereby determining the relative positional relationship between the two ends of each detection signal transmission line 200, that is, the relative positional relationship between the processing end 500 and the data acquisition end 100.

[0055] With the processing terminal 500 remaining in its original position, the relative positional relationship between the data acquisition terminals 100 and the processing terminal 500 is fixed once all data acquisition terminals 100 are deployed. This allows for simultaneous monitoring of the position of each data acquisition terminal 100 during the testing process. If the relative positional relationship between the data acquisition terminal 100 and the processing terminal 500 remains unchanged throughout the process, it indicates that the installation of the corresponding data acquisition terminal 100 is stable and there are no issues of loosening, offset, or detachment. If the relative positional relationship between the data acquisition terminal 100 and the processing terminal 500 changes, it indicates that the corresponding data acquisition terminal 100 has become loose, offset, or detached. The specific type of problem can be determined by the degree of change in the relative positional relationship. In this case, it means that the corresponding data acquisition terminal 100 has deviated from its original testing position, the reliability of the corresponding testing data needs to be corrected, and the corresponding data acquisition terminal 100 needs to be reinstalled and repositioned.

[0056] The above method enables the monitoring of the detection points of the data acquisition terminal 100. When the position coordinates of the data acquisition terminal 100 deviate from the predetermined position, the processing terminal 500 sends a prompt to the user so that the corresponding data acquisition terminal 100 can be processed as soon as possible to avoid affecting the overall detection work.

[0057] Overall, the audio magnetotelluric measurement data acquisition system provided in this embodiment can effectively reduce the risk of data distortion and error when sensors are used in large quantities simultaneously, ensuring the accuracy of the detection process and providing a guarantee for the practical application of sensors.

[0058] In this embodiment, the cavity of the mating groove 321 is hemispherical. The mating seat 320 also has an anti-detachment ring 324 for preventing the mating ball 310 from dislodging from the mating groove 321, and the anti-detachment ring 324 is detachably fitted to the mating seat 320.

[0059] Furthermore, the edges of adjacent conductive contacts 311 are fitted together and insulated. The diameter of the conductive terminal 322 is slightly smaller than the diameter of the conductive contact 311.

[0060] Specifically, through this design, Figure 7 For example, when the conductive terminal 322 is electrically connected to all four conductive contacts 311 simultaneously, it means that the conductive terminal 322 is located at an adjacent corner of these four conductive contacts 311. Figure 7 As shown in the image.

[0061] When the conductive terminal 322 is electrically connected to both conductive contacts 311 simultaneously, it means that the conductive terminal 322 is located on the adjacent side of these two conductive contacts 311. Figure 8 As shown in the image.

[0062] When the conductive terminal 322 is electrically connected to only one conductive contact 311 at the same time, it means that the conductive terminal 322 is within the range of that one conductive contact 311. Figure 9 As shown in the image.

[0063] This design can further improve the detection accuracy of the actual shape of the detection signal transmission line 200.

[0064] In summary, the audio magnetotelluric measurement data acquisition system provided by the embodiments of the present invention can effectively reduce the risk of data distortion and error when sensors are used in large quantities simultaneously, ensure the accuracy of the detection process, and provide a guarantee for the practical application of sensors.

[0065] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An audio magnetotelluric survey data acquisition system, comprising: The application relates to a data acquisition and transmission device. The device comprises a data acquisition end, a detection signal transmission line, a feedback transmission line and a processing end. The detection signal transmission line is connected between the data acquisition end and the processing end, and is used for transmitting detection data of the data acquisition end to the processing end. The detection signal transmission line is provided with a shape detection assembly, and the shape detection assembly comprises a plurality of unit modules. Each unit module comprises a matching ball and a matching seat, and the matching ball is fixedly connected to one end wall of the matching seat. A conductive contact is arranged on one side surface of the matching ball away from the matching seat, and a plurality of conductive contacts are arranged in an array on the surface of the matching ball. The other end wall of the matching seat is provided with a matching groove for matching the matching ball of another unit module, so that the matching ball can be matched in the matching groove in a universal swing manner. A conductive terminal for electrically matching the conductive contact is fixedly arranged in the matching groove. When the matching ball is matched in the matching groove, the conductive terminal is at least in contact with one conductive contact and is electrically connected with the conductive contact. The unit modules are arranged in sequence along the length direction of the detection signal transmission line. The unit modules at one end of the shape detection assembly close to the processing end are electrically connected with the processing end.

2. The audio magnetotelluric survey data acquisition system of claim 1, wherein, The unit modules at one end of the shape detection assembly away from the processing end are electrically connected with the feedback transmission line.

3. The audio magnetotelluric survey data acquisition system of claim 1, wherein, The other end of the feedback transmission line is electrically connected with the processing end, so as to form a detection loop.

4. The audio magnetotelluric survey data acquisition system of claim 3, wherein, In each unit module, each conductive contact is assigned with an identifier. The processing module is used for detecting the conductive contact in a conductive state, taking the identifier of the conductive contact in the conductive state as a shape indicator, and sending the shape indicator to the processing end. The processing end is used for determining the actual shape of the detection signal transmission line according to the shape indicators of the unit modules, determining the position coordinates of the data acquisition end according to the actual shape, and sending a prompt to a user when the position coordinates deviate from a predetermined position. The groove cavity of the matching groove is in a semispherical shape. The matching seat is further provided with an anti-extraction ring for preventing the matching ball from being extracted from the matching groove. The edges of adjacent conductive contacts are in contact and are insulated. The diameter of the conductive terminal is slightly smaller than the diameter of the conductive contact.

5. The audio magnetotelluric survey data acquisition system of claim 1, wherein, In the determination of the actual configuration, the processing end is configured to determine the conductive contact in the on state according to the configuration indicator of each unit module, determine the rotation direction and rotation angle of the mating ball according to the specific position of the conductive contact in the on state on the mating ball, and determine the relative position relationship between the corresponding two unit modules according to the rotation direction and the rotation angle, so as to determine the relative position relationship between all the unit modules in the configuration detection assembly, thereby obtaining the current shape of the configuration detection assembly. The processing end is configured to transmit the current shape of the configuration detection assembly as the actual configuration of the detection signal transmission line.

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