A node instrument with a coupling measurement function

Abstract

The utility model discloses an embodiment provides a kind of node instrument with measuring coupling function.The node instrument with measuring coupling function includes: bucket body, and the detection unit, power panel and data function board being arranged from below to above in the bucket body;Detection unit, the detection unit is moving coil type analog detector, MEMS digital detector, piezoelectric detector or eddy current detector;The data function board is used to provide data acquisition, control, storage, communication and positioning time function;Power panel includes battery pack and voltage adaptation circuit, and the voltage adaptation circuit is used to promote the voltage of the battery pack to the working voltage of the data function board and detection unit.The utility model is used for the acquisition of node instrument coupling state parameter.

Description

Technical Field

[0001] This application relates to the field of detector coupling technology, specifically to a node instrument with coupling measurement function. Background Technology

[0002] In the field of geophysical seismic data acquisition, the coupling quality between the geophone and the ground is a key factor directly affecting the accuracy and reliability of the acquired data. The emergence of "coupled geophone" technology provides an effective theoretical model and means for the quantitative determination of coupling state under field conditions, and its theoretical and engineering reliability has been verified through indoor and outdoor tests.

[0003] However, the large-scale, industrial application of this technology has consistently faced significant challenges. In existing technologies, the standard square wave signal required to activate the "measurement-coupled detector" typically relies on a separate external signal generation circuit or testing equipment. This approach suffers from several inherent and difficult-to-overcome drawbacks: First, it severely restricts construction efficiency and large-scale application. When deploying geophones on a large scale in the field, the additional connection and configuration of external circuits for each geophone point greatly increases the complexity of the process, the burden on the equipment, and the operation time, making it difficult to integrate the technology into an efficient production chain and failing to meet the stringent requirements of modern seismic acquisition for efficiency and scale.

[0004] Secondly, existing solutions have significant shortcomings in terms of power supply and integration. External circuits typically require independent power systems, which not only increases overall power consumption and size but also introduces additional points of failure. Their non-integrated design results in low reliability in harsh field environments, making it difficult to guarantee long-term stable operation, which runs counter to the current trend of seismic acquisition equipment towards integration, modularity, and portability.

[0005] Therefore, existing technologies cannot achieve low-cost, high-efficiency, and real-time coupled quality monitoring that is synchronized with data collection and production. This has become a bottleneck hindering the "measurement-coupling" technology from the verification stage to field industrial applications. Summary of the Invention

[0006] The purpose of this invention is to provide a nodal instrument with measurement and coupling capabilities. By modifying the internal circuitry of the widely used I-Nodal nodal instrument, it utilizes its built-in battery and miniaturized circuit system to directly generate the required square wave signal, thereby completely eliminating dependence on external circuits. This approach directly utilizes the existing power supply and structural system of the nodal instrument, achieving true "instant measurement upon burial." This provides a key technical foundation for large-scale, real-time monitoring of geophone burial quality in the field, thereby systematically improving the accuracy of seismic data acquisition and solving some of the technical problems mentioned in the background section.

[0007] To achieve the above objectives, a first aspect of this application provides a node instrument with a measurement and coupling function. The node instrument includes: a barrel, and a detector unit, a power board, and a data function board arranged from bottom to top within the barrel; the detector unit is a moving-coil analog detector, a MEMS digital detector, a piezoelectric detector, or an eddy current detector; the data function board provides data processing, control, storage, communication, and positioning and timing functions; the power board includes a battery pack and a voltage adapter circuit, the voltage adapter circuit being used to boost the voltage of the battery pack to the operating voltage of the data function board and the detector unit.

[0008] Optionally, the data function board includes a data acquisition board and a main control board arranged in layers; the data acquisition board is used to provide the data processing function; the main control board is used to provide the control, storage, communication and positioning and timing functions.

[0009] Optionally, the voltage adaptation circuit includes: a linear voltage regulator, a multivibrator, a monostable oscillator, a dual D flip-flop, and a multiplexer; the positive and negative terminals of the battery pack are connected to the ground terminal and input terminal of the linear voltage regulator, respectively; the output terminal of the linear voltage regulator is connected to the trigger pin of the multivibrator; one of the Q output terminals of the multivibrator is connected to the input pin of the monostable oscillator; the output pin of the monostable oscillator is connected to the trigger pin of the dual D flip-flop; one of the Q output terminals of the dual D flip-flop is connected to the multiplexer to obtain the first output voltage of the voltage adaptation circuit.

[0010] Optionally, the voltage adapter circuit further includes: an optocoupler and an operational amplifier; the input terminal of the optocoupler is connected to the first output voltage; the two output terminals of the optocoupler are connected to the non-inverting input terminal and the inverting input terminal of the operational amplifier; the operational amplifier outputs the second output voltage of the voltage adapter circuit.

[0011] Optionally, the linear voltage regulator is model 78L5; the multivibrator is model CD4047B; the monostable oscillator is model DS3632N; the dual D flip-flop is model CD4013B; the multiplexer is integrated into MM74HC04; and the optocoupler is model 4N28.

[0012] Optionally, the detector unit, data function board, and power supply board are flexibly buffered and connected by rubber bushings.

[0013] Optionally, the bottom of the barrel is fixed with a metal component to secure the detector unit. The detector unit is placed in the central cavity of the battery pack and secured with a ring nut. A ceramic laminate vibrator is added below to generate vibration signals. The battery pack uses EVA foam for vibration isolation.

[0014] Optionally, the main control board includes at least two communication modules, which are selected by a DIP switch on the board.

[0015] Optionally, the detector further includes a first piezoelectric ceramic crystal; the first piezoelectric ceramic crystal is disposed on the top of the detection unit.

[0016] Optionally, the measurement and coupling detector further includes a second piezoelectric ceramic crystal and a third piezoelectric ceramic crystal. The second piezoelectric ceramic crystal is located on a first side of the detection unit, and the third piezoelectric ceramic crystal is located on a second side perpendicular to the first side where the second piezoelectric ceramic crystal is located.

[0017] Through the above technical solution, the internal circuit of the node instrument generates a square wave. With the help of the built-in battery and miniaturized circuit of the node instrument, this technology can replace the traditional external circuit, promote field industrial applications, and monitor the quality of the detector burial in real time to improve the acquisition accuracy.

[0018] Other features and advantages of this utility model embodiment will be described in detail in the following detailed description section. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This schematic diagram illustrates the overall structure of a node instrument with a coupling function according to an embodiment of the present invention. Figure 2 This schematically illustrates a partial structural diagram of the voltage adaptation circuit of a node instrument with a measurement and coupling function according to an embodiment of the present invention. Figure 3 This schematically illustrates another part of the structural diagram of the voltage adaptation circuit of a node instrument with a measurement and coupling function according to an embodiment of the present invention; Figure 4 This is a front view of a specific embodiment of the measurement and coupling detector of this utility model; Figure 5 This is a left view of a specific embodiment of the measurement and coupling detector of this utility model; Figure 6 This is a top view of a specific embodiment of the measurement and coupling detector of this utility model.

[0020] Figure Labels 1-First piezoelectric ceramic crystal, 2-Second piezoelectric ceramic crystal, 3-Third piezoelectric ceramic crystal, 4-Detector unit. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of the embodiments of this utility model and are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0024] Figure 1 A schematic diagram of a node instrument with a coupling function according to an embodiment of the present invention is shown. Figure 1 As shown, the node instrument with measurement and coupling function includes: a barrel, and a detector unit, a power board, and a data function board arranged from bottom to top inside the barrel; the detector unit is a moving-coil analog detector, a MEMS digital detector, a piezoelectric detector, or an eddy current detector; the data function board is used to provide data processing, control, storage, communication, and positioning and timing functions; the power board includes a battery pack and a voltage adapter circuit, the voltage adapter circuit being used to boost the voltage of the battery pack to the operating voltage of the data function board and the detector unit and supply them with power.

[0025] This node instrument with measurement and coupling function adopts an injection-molded barrel cover and barrel body structure. The barrel cover contains a fixed mounting plate and a data function board that undertakes data processing, control, storage, communication, and positioning and timing functions. The power supply is also integrated within the board, significantly improving the integration of the node instrument with measurement and coupling function. This technology replaces traditional external circuits, promoting field industrial applications and enabling real-time monitoring of the detector's embedding quality to improve acquisition accuracy.

[0026] The node instrument with the coupling function is buried in one of the following ways during use: inserting 1 / 3 of the tail cone, inserting 2 / 3 of the tail cone, inserting the entire tail cone, or burying the entire outer shell of the detector; inputting a square wave signal to the piezoelectric ceramic, receiving the coupling response between the detector and the ground; performing mode parameter identification on the received data, and calculating the equivalent natural frequency and equivalent damping ratio corresponding to different burial conditions.

[0027] In some embodiments of this application, the data function board includes a layered data acquisition board and a main control board; the data acquisition board provides the data processing function; and the main control board provides the control, storage, communication, and positioning / timing functions. This embodiment provides a layered design for the circuit function board, decomposing a complex system into functionally defined independent modules through the design principle of "high cohesion and low coupling." This design method brings comprehensive and significant advantages in terms of reliability, maintainability, development efficiency, cost control, and technological iteration, and is a key foundation for the rapid and reliable development and manufacturing of modern complex electronic devices. In industrial-grade equipment such as field data acquisition nodes, a single board can be replaced to address a specific functional failure. This avoids the need to replace the entire data function board, and these advantages are particularly important for ensuring the long-term stable operation of the equipment in harsh environments.

[0028] Figure 2 The diagram schematically illustrates a partial structural diagram of a voltage adaptation circuit for a node instrument with a measurement and coupling function according to an embodiment of the present invention. Figure 3 This schematically illustrates another part of the structural diagram of the voltage adaptation circuit of a node instrument with a coupling function according to an embodiment of the present invention. For example... Figure 2 and Figure 3 As shown, the voltage adapter circuit includes: a linear voltage regulator, a multivibrator, a monostable oscillator, a dual D flip-flop, and a multiplexer; the positive and negative terminals of the battery pack are connected to the ground terminal and input terminal of the linear voltage regulator, respectively; the output terminal of the linear voltage regulator is connected to the trigger pin of the multivibrator; one of the Q output terminals of the multivibrator is connected to the input pin of the monostable oscillator; the output pin of the monostable oscillator is connected to the trigger pin of the dual D flip-flop; one of the Q output terminals of the dual D flip-flop is connected to the multiplexer to obtain the first output voltage of the voltage adapter circuit, i.e., position J2 in the figure.

[0029] In some embodiments of this application, the voltage adapter circuit further includes: an optocoupler and an operational amplifier; the input terminal of the optocoupler is connected to the first output voltage; the two output terminals of the optocoupler are connected to the non-inverting input terminal and the inverting input terminal of the operational amplifier; the operational amplifier outputs the second output voltage of the voltage adapter circuit, i.e., position J3 in the figure. This voltage adapter circuit provides a variety of different output voltages to adapt to the power requirements of different components.

[0030] To facilitate implementation and equipment selection by those skilled in the art, the linear voltage regulator is model 78L5; the multivibrator is model CD4047B; the monostable oscillator is model DS3632N; the dual D flip-flop is model CD4013B; the multiplexer is integrated into MM74HC04; and the optocoupler is model 4N28. The specific connection methods for the above electronic modules are as follows: Figure 2 and Figure 3 As shown.

[0031] In a typical power supply, the power board boosts the +3.3V supply voltage to above 20V to power the square wave generator. The square wave generator outputs a square wave according to the design signal, such as a frequency of 1-2Hz, an amplitude of not less than ±20V, and a rise and fall time of less than 0.1m, so that the output square wave meets the application requirements of ceramic lamination and node meters.

[0032] In some embodiments of this application, the detector unit, data function board, and power board are flexibly buffered and connected via rubber bushings. This "flexible buffered connection via rubber bushings" in this embodiment is an engineering design aimed at improving the physical reliability of the equipment and the quality of data acquisition. By introducing an elastic "buffer layer," it transforms the core components of the entire device from a rigid structure susceptible to shock and vibration into a flexible, adaptive, and robust system capable of resisting external mechanical interference. This is crucial for ensuring the long lifespan and reliability of high-precision data acquisition equipment in harsh outdoor environments.

[0033] In some embodiments of this application, the bottom of the barrel is fixed with a metal component to secure the detector unit housing. The detector unit is placed in the central cavity of the battery pack and secured with a ring nut. A ceramic laminated vibrator is added below to generate vibration signals. The battery pack uses EVA foam for vibration isolation. Specific structure as follows... Figure 1 As shown in the figure, the positions of components such as the ceramic laminate vibrator and the detector unit are illustrated. The battery pack is arranged in a ring to form a central cavity, and the detector unit is placed inside the central cavity of the battery pack and then secured with a ring nut. This improves the integration of the node instrument with measurement and coupling functions. At the same time, to avoid resonance and interference from the battery pack, EVA foam is used for vibration isolation.

[0034] In some embodiments of this application, the main control board includes at least two communication modules, which are selected via DIP switches on the board. The communication modules can be homogeneous or heterogeneous. Communication modules can include Bluetooth, Wi-Fi, 4G LTE, 5G NR, LoRa, NB-IoT, satellite communication, etc. Users can select the communication method using the DIP switches according to different application scenarios and actual needs. This embodiment achieves a balance between "flexibility," "reliability," and "ease of use" in communication capabilities through a combination of "hardware integration" and "hardware selection," making it highly suitable for deployment in complex environments and high-reliability outdoor or industrial application scenarios.

[0035] In some embodiments of this application, such as Figures 4 to 6 As shown, the node instrument with coupling function further includes a first piezoelectric ceramic crystal; the first piezoelectric ceramic crystal is disposed on the top of the detector unit. Optionally, the node instrument with coupling function further includes a second piezoelectric ceramic crystal and a third piezoelectric ceramic crystal. The second piezoelectric ceramic crystal is located on a first side of the detector unit, and the third piezoelectric ceramic crystal is located on a second side perpendicular to the first side where the second piezoelectric ceramic crystal is located. The node instrument with coupling function consists of a first piezoelectric ceramic crystal 1, a second piezoelectric ceramic crystal 2, a third piezoelectric ceramic crystal 3, and a detector unit 4. The first piezoelectric ceramic crystal 1 is located on the top of the detector unit 4, the second piezoelectric ceramic crystal 2 is located on a first side of the detector unit 4, and the third piezoelectric ceramic crystal 3 is located on a second side perpendicular to the first side where the second piezoelectric ceramic crystal 2 is located. In one embodiment, the first piezoelectric ceramic crystal 1, the second piezoelectric ceramic crystal 2, and the third piezoelectric ceramic crystal 3 should be located at the center position inside the housing of the detector unit 4 (top and two sides), and firmly bonded to the detector housing using industrial adhesive.

[0036] The above implementation methods improve the integration of node instruments with measurement and coupling functions, especially the power supply integration, promoting field industrial applications and enabling real-time monitoring of detector embedding quality to improve acquisition accuracy.

[0037] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0038] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A node instrument with a coupling measurement function, characterized in that, The node instrument with coupling measurement function includes: The barrel body, and the detector unit, power supply board and data function board arranged from bottom to top inside the barrel body; The detection unit is a moving-coil analog detector, a MEMS digital detector, a piezoelectric detector, or an eddy current detector. The data function board is used to provide data processing, control, storage, communication and positioning and timing functions; The power board includes a battery pack and a voltage adapter circuit, which is used to boost the voltage of the battery pack to the operating voltage of the data function board and the detector unit.

2. The node instrument with coupling measurement function according to claim 1, characterized in that, The data function board includes a layered data acquisition board and a main control board; The data acquisition board is used to provide the data processing function; The main control board is used to provide functions for instrument system control, storage, and communication positioning.

3. The node instrument with coupling measurement function according to claim 1, characterized in that, The voltage adaptation circuit includes: a linear voltage regulator, a multivibrator, a monostable oscillator, a dual D flip-flop, and a multiplexer. The positive and negative terminals of the battery pack are connected to the ground terminal and input terminal of the linear voltage regulator, respectively. The output of the linear voltage regulator is connected to the trigger pin of the multivibrator. One of the Q outputs of the multivibrator is connected to the input pin of the monostable oscillator; The output pin of the monostable oscillator is connected to the trigger pin of the dual D flip-flop; One of the Q outputs of the dual D flip-flop is passed through the multiplexer to obtain the first output voltage of the voltage adapter circuit.

4. The node instrument with coupling measurement function according to claim 3, characterized in that, The voltage adapter circuit also includes: an optocoupler and an operational amplifier; The input terminal of the optocoupler is connected to the first output voltage; The two output terminals of the optocoupler are connected to the non-inverting input terminal and the inverting input terminal of the operational amplifier; The operational amplifier outputs the second output voltage of the voltage adapter circuit.

5. The node instrument with coupling measurement function according to claim 4, characterized in that, The linear voltage regulator is model 78L5; the multivibrator is model CD4047B; the monostable oscillator is model DS3632N; the dual D flip-flop is model CD4013B; the multiplexer is integrated in MM74HC04; and the optocoupler is model 4N28.

6. The node instrument with coupling measurement function according to claim 1, characterized in that, The detector unit, data function board, and power supply board are connected by a flexible buffer through rubber bushings.

7. The node instrument with coupling function according to claim 6, characterized in that, The bottom of the barrel is fixed with a metal component to secure the detector unit. The detector unit is placed in the central cavity of the battery pack and secured with a ring nut. A ceramic laminate vibrator is added below to generate vibration signals. The battery pack uses EVA foam for vibration isolation.

8. The node instrument with coupling measurement function according to claim 2, characterized in that, The main control board includes at least two communication modules, which are selected by a DIP switch on the board.

9. The node instrument with coupling measurement function according to claim 1, characterized in that, The node instrument with coupling function also includes a first piezoelectric ceramic crystal; The first piezoelectric ceramic crystal is disposed on the top of the detector unit.

10. The node instrument with coupling measurement function according to claim 9, characterized in that, The node instrument with measurement and coupling function also includes a second piezoelectric ceramic crystal and a third piezoelectric ceramic crystal. The second piezoelectric ceramic crystal is located on the first side of the detector unit, and the third piezoelectric ceramic crystal is located on the second side perpendicular to the first side where the second piezoelectric ceramic crystal is located.

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