Multi-sensor linkage delivery device and signal acquisition method thereof

Abstract

This invention discloses a multi-sensor linkage deployment device and its signal acquisition method. The device includes the following steps: a horizontally extending crossbar, multiple vertically arranged support rods, and a detector for coupling with the target ground. Each support rod includes a relatively slidable upper section, a lower section, and an elastic buffer mechanism connecting the upper and lower sections. The upper end of each upper section is fixedly connected to a corresponding area of ​​the crossbar, and the lower end of each lower section is used to install the corresponding detector. The crossbar is a telescopic integral rod structure, and a locking mechanism is integrated into the rod structure to fix the telescopic state of the crossbar. This invention aims to enhance the operating efficiency of the detector and the coupling effect under complex terrain conditions.

Description

Technical Field

[0001] This invention relates to the field of seismic exploration technology, and in particular to a multi-sensor linkage deployment device and its signal acquisition method. Background Technology

[0002] Seismic exploration is a commonly used high-resolution geophysical exploration method. Seismic exploration cannot be separated from sensors (such as geophones). Good coupling performance of sensors is an important factor in ensuring the exploration effect. Commonly used geophones are small and precise sensors. In field operations, they usually need to bend over to install or deploy them one by one, which results in low work efficiency and difficulty in ensuring coupling performance.

[0003] Existing technology CN114200517A discloses a ground-based seismic source excitation system and seismic data acquisition method based on seismic detectors. This system, designed for UAV-based seismic source excitation scenarios, uses a ring-shaped array of seismic detectors to trigger the system, achieving precise recording of the source body's contact time with the ground and wireless synchronous acquisition of seismic data. The core components include: multiple seismic detectors evenly distributed in a ring (1.5m in diameter) around a predetermined shot point, inserted into the ground for coupling, triggered by seismic waves generated by the source body impact; a timing module (such as GPS / BeiDou) recording the contact time; a wireless communication module transmitting pulse signals to control the synchronous acquisition by the seismic observation system; an optional differential GPS positioning module recording coordinates; and a waveform recording module analyzing time accuracy. While this method improves the synchronization of data acquisition, the system is a separate design, relying on external deployment for source excitation, resulting in low detector deployment efficiency and difficulty in adapting to varying terrain. Summary of the Invention

[0004] The main objective of this invention is to provide a multi-sensor linkage deployment device and its signal acquisition method, aiming to solve the problems of low operating efficiency and poor coupling effect of existing seismic exploration detectors under complex terrain conditions.

[0005] To achieve the above objectives, the present invention provides a multi-sensor linkage deployment device, wherein the device includes a horizontally extending crossbar, a plurality of vertically arranged support rods, and a detector for coupling with the target ground; each support rod includes a relatively slidable upper section, a lower section, and an elastic buffer mechanism connecting the upper section and the lower section, the upper end of each upper section is fixedly connected to the corresponding area of ​​the crossbar, and the lower end of each lower section is used to install the corresponding detector;

[0006] The crossbar is a telescopic integral rod structure, and a locking mechanism is integrated on the rod structure to fix the telescopic state of the crossbar.

[0007] Optionally, each support rod may also include a positioning control assembly, which includes a brake caliper, an operating mechanism, and a transmission unit;

[0008] The brake caliper is located in the lower section and locks the relative position of the lower section and the upper section;

[0009] The operating mechanism is located on the upper section of the support rod or the crossbar, and is connected to and controls the clamping and releasing actions of the brake caliper through the transmission unit.

[0010] Optionally, the positioning control fixing component is an automatic control type, which includes a force sensor, a control unit, and a trigger unit located on the crossbar:

[0011] The pressure sensor is located in the elastic buffer mechanism and is used to detect the pressure of the detector on the ground;

[0012] The control unit is configured to control the brake caliper to lock when the pressure value detected by the pressure sensor reaches a preset threshold.

[0013] The triggering unit is used to send a signal to the control unit after data acquisition is completed, so as to control the brake caliper to unlock.

[0014] Optionally, the locking mechanism is a mechanical stop limiting structure or an electronic displacement locking structure.

[0015] Optionally, a level tube is installed on the crossbar to monitor its horizontal status.

[0016] Optionally, the detector is one of a magnetoelectric velocity sensor, a piezoelectric accelerometer, or a digital sensor.

[0017] Optionally, the detector housing is covered with a flexible cushioning material layer.

[0018] Optionally, the crossbar and the support rod are made of aluminum alloy or engineering plastic; the elastic buffer mechanism is a helical spring.

[0019] Optionally, the device includes 3-6 support rods, which are arranged at equal intervals along the crossbar.

[0020] Furthermore, to achieve the above objectives, the present invention also provides a signal acquisition method for a multi-sensor linkage delivery device, employing the device described in any of the above claims, the method comprising the following steps:

[0021] S1. Extend, retract, and lock the crossbar to set the spacing of the detector array;

[0022] S2. Place the device in the target area so that each detector is coupled to the ground under the action of the elastic buffer mechanism of the support rod.

[0023] S3. After each detector stabilizes, operate the positioning control component to lock the extension and retraction state of the support rod; start the detector to acquire seismic signals.

[0024] S4. After the data collection is completed, release the support rod lock and retract the device.

[0025] Beneficial effects:

[0026] (1) Multiple detectors are connected by a crossbar to achieve array-style one-time deployment and one-time deployment of multiple sensors, which greatly shortens the operation time; the crossbar is telescopic and can be adjusted directly to change the track spacing without re-deployment, so as to adapt to different accuracy requirements.

[0027] (2) The vertical rod has an elastic adaptive structure, and each detector is independently attached to the ground, which improves the coupling consistency and enhances the signal reliability. The detector position is fixed during data acquisition to avoid displacement interference caused by external force or vibration.

[0028] (3) The vertical rod can be independently telescopic and elastically buffered, which can maintain a good coupling effect in complex terrains such as slopes and uneven terrains; thus expanding the applicability of seismic exploration in complex areas.

[0029] (4) The horizontal bar design and level tube assist positioning eliminate the need for operators to bend over frequently, reducing labor intensity; the pressure sensor + automatic locking system reduces human judgment error, and the operation is highly standardized, which not only makes the operation convenient but also effectively improves the detection effect.

[0030] (5) Integrating multiple technologies such as mechanical extension, elastic self-adaptation, and automatic locking, the effect of 1+1>2 is achieved, and the overall performance is improved. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of a multi-sensor linkage delivery device of the present invention in automatic control mode;

[0033] Figure 2 for Figure 1 Simplified digital circuit diagram under automatic control mode;

[0034] Figure 3 A schematic diagram of the structure in manual control mode for a single detector;

[0035] Figure 4 A schematic diagram of the brake caliper for the positioning control component;

[0036] Figure 5 A schematic diagram illustrating the application of a multi-sensor linkage delivery device to uneven terrain;

[0037] Figure 6 A schematic diagram of a multi-sensor linkage deployment device applied to a sloping surface;

[0038] Figure 7 A 2D model diagram for data signal acquisition in a spherical goaf B;

[0039] Figure 8 This is a top view of a multi-detector array.

[0040] Explanation of icon numbers:

[0041] 1-Horizontal bar, 2-Upper section, 3-Lower section, 4-Elastic buffer mechanism, 5-Brake clamp, 6-Iron wire, 7-Motor, 8-Switch button, 9-Handle, 10-Speed ​​sensor, 11-Tail cone; 41-Pressure sensor, A-Voltage source, B-Goaf, R1, R2, R3, R4 represent the corresponding detectors.

[0042] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0044] See Figures 1-8 The present invention provides a schematic diagram of a multi-sensor linkage deployment device, wherein the device includes a horizontally extending crossbar 1, a plurality of vertically arranged support rods, and a detector for coupling with the target ground.

[0045] Among them, such as Figure 1 As shown in Figure 3, each support rod includes a relatively sliding upper section 2, a lower section 3, and an elastic buffer mechanism 4 connecting the upper section 2 and the lower section 3. The upper end of each upper section 2 is fixedly connected to the corresponding area of ​​the crossbar 1, and the lower end of each lower section 3 is used to install the corresponding detector. The crossbar 1 is a telescopic integral rod structure, and a locking mechanism is integrated on the rod structure to fix the telescopic state of the crossbar. Multiple support rods and detectors can be connected through the crossbar to achieve array-style one-time deployment. Furthermore, the telescopic design of the crossbar allows for rapid adjustment of the spacing to adapt to different exploration needs, thereby effectively improving operational efficiency. Simultaneously, the elastic adaptive structure of the support rod allows each detector to independently conform to the ground and effectively couple to complex terrain, ensuring consistent coupling quality between each detector and the ground, and reducing data deviations caused by coupling differences.

[0046] Preferably, the crossbar 1 is an integral rod-shaped structure made of aluminum alloy or engineering plastic, and the length of the crossbar 1 is adjusted by a sleeve-type telescopic mechanism. When the crossbar 1 is extended or retracted to the required length, the adjusted position is fixed by a locking mechanism. Furthermore, the crossbar 1 can synchronously adjust the spacing between the connected support rods to adjust the horizontal spacing between the detectors, and the spacing is fixed by a locking mechanism.

[0047] More preferably, the extension range of the crossbar 1 is 0.5-2m. As the crossbar 1 extends from its shortest state to its longest state, the spacing between all detectors increases synchronously, and the spacing between adjacent detectors remains equal.

[0048] Furthermore, the support rod is also made of aluminum alloy or engineering plastic.

[0049] Furthermore, the locking mechanism is a mechanical stop limiting structure, which can adapt to various exploration scenarios by providing a flexible spacing adjustment range. Alternatively, the locking mechanism can also employ an electronic displacement locking structure.

[0050] Furthermore, the elastic buffer mechanism 4 is used to enable each detector to adapt to uneven ground in the vertical direction. The elastic buffer mechanism 4 is preferably a helical spring. Thus, when the ground is uneven, each detector can rise and fall independently under the action of the spring. Figure 6 As shown, during testing on the slope, all detectors made good contact with the ground. And as... Figure 5 As shown, when testing on uneven road surfaces, the elastic buffer mechanism 4 effectively adapts to undulating terrain, ensuring the coupling quality between the detector and the ground, thereby improving the accuracy of data acquisition. Furthermore, in practical applications, operators can deploy multiple detectors simultaneously using the horizontal bar 1, achieving simultaneous deployment of multiple detectors and significantly improving field operation efficiency; the integrated structure ensures the consistency of the spacing between each detector.

[0051] Furthermore, each support rod also includes a positioning control component. Once the detector has stabilized in contact with the ground, the support rod is locked in a stable state, either manually or automatically, thus locking the relative positions of the upper section 2 and the lower section 3. This ensures the stability of the support rod and detector during data acquisition, guaranteeing the continuity of the acquired data.

[0052] Furthermore, the detector may include a velocity sensor 10 and a tail cone 11 disposed below the velocity sensor, the tail cone 11 being coupled to the ground. The velocity sensor 10 is one of a magnetoelectric velocity sensor, a piezoelectric accelerometer, or a digital sensor. Preferably, to delay the wear of the detector, a flexible buffer material layer may also be provided covering the detector housing.

[0053] Furthermore, in use, the detector is connected to the seismograph via wired or wireless communication.

[0054] Furthermore, such as Figure 1 As shown in Figure 3, the positioning control assembly includes a brake caliper 5, an operating mechanism, and a transmission unit; as shown in Figure 3. Figure 4 As shown, the brake clamp 5 is located on the lower section 3 and locks the relative position of the lower section 3 and the upper section 2 through friction clamping; the operating mechanism is located on the upper section 2 of the support rod or the crossbar 1, and is connected to and controls the clamping and releasing actions of the brake clamp 5 through a transmission unit. This can prevent signal interference caused by loosening of the instrument during data acquisition and ensure data continuity.

[0055] Furthermore, the positioning control component is an automatic control type, which also includes a pressure sensor 41, a control unit, and a trigger unit located on the crossbar 1. The control unit and the trigger unit are electrically connected. The control unit is preferably an integrated circuit or a microprocessor. The trigger unit, located on the crossbar 1, is the user interface. It is used to send a manual unlock signal to the control unit after data acquisition is completed.

[0056] Specifically, the pressure sensor 41 is located in the elastic buffer mechanism 4 and is used to detect the pressure of the detector on the ground; the control unit is configured to send a control signal to the operating mechanism, i.e., the motor 7, when the pressure value detected by the pressure sensor 41 reaches a preset threshold, driving the brake caliper 5 to lock; the trigger unit is used to send a signal to the control unit after data acquisition is completed to control the brake caliper 5 to unlock. Figure 2 The diagram shown is a simplified digital circuit diagram in automatic control mode. The corresponding structural schematic diagram of the detector in automatic control mode is shown below. Figure 1 As shown. The specific steps of the automatic control mode are as follows:

[0057] Step 1: System Initialization and Device Placement

[0058] Start the system: The operator presses switch button 8 on the horizontal bar to power on the automatic control system.

[0059] Placement device: Hold the device, adjust the crossbar 1 to the predetermined spacing and lock it, then place the entire device stably on the ground in the target area. At this time, the tail cones 11 of each detector will be in contact with the ground.

[0060] Step Two: Pressure Adaptation and Signal Detection

[0061] Independent Adaptation: Under the weight of the device and the elastic action of the springs in each support rod, each detector begins to independently adapt to the undulations of the ground. Its lower section 3 slides relative to the upper section 2, compressing the spring.

[0062] Pressure signal generation: As the spring is compressed, the pressure sensor 41 mounted above the spring detects the pressure value in real time. This pressure value directly reflects the degree of pressure exerted by the corresponding detector on the ground.

[0063] Step 3: Logical Judgment and Locking Condition Determination

[0064] Signal summary: Pressure sensor signals from all support rods, along with the start signal from the "switch button," are input to the control unit.

[0065] AND logic judgment: The control unit performs a key logic judgment: First, it checks whether the switch button is in the "on" state. At the same time, it checks whether the readings of all pressure sensors 41 have reached the preset locking pressure threshold. Only when both conditions of "switch on" and "all pressures meet the threshold" are met simultaneously (i.e., determined by the AND logic gate), will the control unit generate a valid "lock" command signal.

[0066] Step 4: Actuator Action and Device Locking

[0067] Trigger Locking: When the control unit issues a "lock" command, the command is transmitted to the motor 7 located at the support rod.

[0068] Brake clamping: After receiving the command, motor 7 starts and pulls the brake clamp assembly located inside the upper section by winding the traction wire 6.

[0069] Rigid fixation is achieved: the brake caliper 5 actuates, using friction and clamping to firmly lock the lower section 3 inside, preventing relative sliding between the lower section 2 and the upper section 3. At this point, the entire support rod changes from an "elastic adaptive state" to a "rigid support state".

[0070] Step 5: Data Acquisition and Device Recovery

[0071] Start Acquisition: Once the device is fully locked, the operator can start the seismograph. Each detector will begin acquiring seismic wave signals.

[0072] End and Release: After data acquisition is complete, the operator sends a "release" signal to the control unit again via switch button 8. The control unit drives motor 7 to reverse, releasing the traction wire 6, and the brake clamp 5 releases the lower rod under the action of the return spring. The operator can then lift the device and move to the next measuring point.

[0073] The automatic control mode forms a closed-loop system control flow as follows: pressure sensor 41 (detects pressure) → control unit (makes decisions) → operating mechanism (such as motor) → transmission unit → brake caliper 5 (executes locking).

[0074] Meanwhile, the trigger unit serves as an external intervention point: trigger unit (crossbar 1) → control unit → operating mechanism → transmission unit → brake caliper 5 (executes unlocking). This relationship ensures the automation of the locking process (based on pressure feedback) and the human-machine collaboration in unlocking.

[0075] Preferably, pressure sensor 41 monitors spring pressure. When all sensor pressures reach the 10N threshold, the control unit automatically triggers the brake caliper 5 to lock. This achieves precise automatic locking, avoids human error, and improves the standardization of operations.

[0076] Furthermore, the positioning control component is manually controlled, such as... Figure 3 As shown, unlike the automatic control mode, it relies on human observation and touch to subjectively judge whether all detectors have stably contacted the ground, and then triggers the actuator, that is, the operator manually operates handle 9 → pulls the traction wire 6 → drives the brake clamp 5 to lock.

[0077] Furthermore, in manual mode, the operating mechanism is a manual handle; in automatic mode, the operating mechanism is replaced by an electric motor or other electronically controlled components. Other structures that can achieve the corresponding functions of a manual handle / motor in different modes can also be easily replaced. Meanwhile, the transmission unit, such as... Figure 1 In section / 3, a traction wire is used to connect the operating mechanism and brake caliper 5, transmitting force or motion. Additionally, steel wire is also used, and other structures that can achieve the corresponding functions of the transmission unit in different modes can be easily replaced.

[0078] Furthermore, a level tube is installed on the crossbar 1 to monitor the horizontal state of the crossbar 1.

[0079] Furthermore, the device includes 3-6 support rods, which are arranged at equal intervals along the crossbar 1.

[0080] Furthermore, to better illustrate the device structure of the present invention, the following description of specific signal acquisition and transmission methods all employs the device described above. The method includes the following steps:

[0081] S1. Extend, retract, and lock the crossbar 1 to set the spacing of the detector array;

[0082] S2. Place the device in the target area so that each detector is coupled to the ground under the action of the elastic buffer mechanism 4 of the support rod.

[0083] S3. After each detector stabilizes, operate the positioning control component to lock the extension and retraction state of the support rod; start the detector to acquire seismic signals.

[0084] The extension and retraction state of the locking support rod is automatically controlled. Specifically, the force sensor detects the pressure of each detector on the ground; when the pressure values ​​detected by all force sensors reach a preset threshold, the locking action is automatically triggered.

[0085] S4. After the data collection is completed, release the support rod lock and retract the device.

[0086] The above standardized operating procedures reduce the difficulty of operation for personnel and improve work efficiency.

[0087] Furthermore, a specific embodiment demonstrates signal acquisition using a detector in automatic control mode arranged on an inclined plane, such as... Figure 6 As shown, it specifically includes the following steps:

[0088] S1. Adjust the distance between the detectors to 0.5m.

[0089] S2. Hold the horizontal bar 1 and center the bubble in the level tube on the horizontal bar 1.

[0090] S3. Keep the horizontal bar 1 horizontal and gradually bring the device into contact with the ground, with R1 contacting the ground first and causing the signal of the corresponding pressure sensor to reach the threshold.

[0091] S4. Continue to press the device downwards, based on... Figure 2 The automatic control logic in the system ensures that the brake clamp 5 will not lock until the last detector reaches the threshold, since all pressure sensors are connected to the door. When all pressure sensors reach the threshold, the brake clamp 5 automatically locks, making the coupling degree between each detector and the ground basically the same. At this time, you only need to hold the detector and the support rod vertically. In this mode, the detector will not be suspended in the air.

[0092] S5. Excite the seismic source A, and simultaneously trigger the host to start collecting data.

[0093] S6. After completing one data collection, lift the crossbar 1 and press the switch button 8 on the crossbar 1. The brake clamp will automatically release.

[0094] S7. Move the device to the next measuring point and repeat the above operation.

[0095] Furthermore, the present invention also provides a seismic exploration system, the system comprising the aforementioned multi-sensor linkage deployment device, seismic source excitation device, and seismic data recorder; wherein the detector of the multi-sensor linkage deployment device is communicatively connected to the seismic data recorder. And, the seismic source excitation device is a manually hammered seismic source.

[0096] Furthermore, data signals were collected from a spherical goaf B with a diameter of 2m located 5m underground, such as... Figure 7A 24m survey line was laid out with the projection of the center of the spherical goaf onto the ground as the center. The survey points were spaced 1m apart, totaling 25 survey points. The seismic source A was located 2.5m to the left of the survey point, and three geophones R1, R2, and R3 were located 2m, 2.5m, and 3m to the right of the survey point, respectively. Detailed steps are as follows:

[0097] S1. Arrange the survey lines, seismic source A, and detector in the survey area according to the above instructions;

[0098] S2. Connect the instruments, connect the circuit between the detector, source A and the main unit, and turn on the main unit for debugging;

[0099] S3, Excitation source A, usually excited by artificial hammering;

[0100] S4. Acquiring signals: After the vibration source A is excited, the elastic wave propagates and is received by the detector. The host starts to acquire data synchronously.

[0101] S5. Move the measuring point. After completing one data acquisition, move the seismic source and detector to the next measuring point and repeat steps S3 and S4.

[0102] S6. Signal differential processing: Following the second-order differential processing mode, the signal is processed differentially, specifically as follows: SR1, SR2, and SR3 are the acquired signals from adjacent detectors. Differential processing effectively identifies underground anomalies, improving signal processing accuracy and enhancing the ability to identify underground anomalies.

[0103] S7. Data visualization, which involves visualizing the collected data and processed signals.

[0104] Furthermore, the multi-sensor linkage deployment device can deploy multiple sets, for example, deploying multiple sets of devices on a certain road surface. Each set can consist of 3 to 4 devices, arranged along two perpendicular measuring lines. The seismic source can be excited multiple times at multiple locations within the measuring area. A top view of its multi-detector array is shown below. Figure 8 As shown, the specific steps for using multiple detector arrays are as follows:

[0105] S1. Arrange the survey lines, seismic sources, and detectors in the survey area according to the above instructions;

[0106] S2. Connect the instruments, connect the circuit between the detector, the source and the main unit, and turn on the main unit and set the relevant parameters;

[0107] S3, Excitation source, usually excited by hammering;

[0108] S4. After the seismic source is excited, the seismic waves propagate in the underground medium and are received by the detector. The host then begins to collect data synchronously.

[0109] S5. Move the seismic source. After completing one signal acquisition, keep the detector position unchanged, move the seismic source to the next position and repeat steps S3 and S4.

[0110] S6. Move the test area. After completing the test of one area, move the entire device to the next area and repeat steps S3, S4 and S5.

[0111] S7. Data Analysis: Each seismic source excitation yields a set of data. Data from multiple seismic source excitations in multiple regions can be further processed to determine underground anomaly characteristics. Data acquisition typically involves multiple seismic source excitations and data acquisitions at the same measuring point; the acquired data are then overlaid to improve the signal-to-noise ratio.

[0112] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A multi-sensor linkage delivery device, characterized in that, The device includes a horizontally extending crossbar (1), multiple vertically arranged support rods, and a detector for coupling with the target ground; each support rod includes a relatively sliding upper section (2), a lower section (3), and an elastic buffer mechanism (4) connecting the upper section (2) and the lower section (3), the upper end of each upper section (2) is fixedly connected to the corresponding area of ​​the crossbar (1), and the lower end of each lower section (3) is used to install the corresponding detector; The crossbar (1) is a telescopic integral rod structure, and a locking mechanism is also integrated on the rod structure. The locking mechanism is used to fix the telescopic state of the crossbar.

2. The apparatus according to claim 1, characterized in that, Each support rod also includes a positioning control component, which includes a brake caliper (5), an operating mechanism, and a transmission unit; The brake caliper (5) is located on the lower section (3) and locks the relative position of the lower section (3) and the upper section (2); The operating mechanism is located on the upper section (2) of the support rod or the crossbar (1), and is connected to and controls the clamping and releasing action of the brake caliper (5) through the transmission unit.

3. The apparatus according to claim 2, characterized in that, The positioning control fixing component is an automatic control type, which includes a force sensor, a control unit and a trigger unit located on the crossbar (1): The pressure sensor (41) is located in the elastic buffer mechanism (4) and is used to detect the pressure of the detector on the ground; The control unit is configured to control the brake caliper (5) to lock when the pressure value detected by the pressure sensor (41) reaches a preset threshold. The triggering unit is used to send a signal to the control unit after the data acquisition is completed, so as to control the brake caliper (5) to be unlocked.

4. The apparatus according to claim 1, characterized in that, The locking mechanism is a mechanical stop limiting structure or an electronic displacement locking structure.

5. The apparatus according to claim 1, characterized in that, A level tube is installed on the crossbar (1) to monitor the horizontal state of the crossbar (1).

6. The apparatus according to claim 1, characterized in that, The detector is one of a magnetoelectric velocity sensor, a piezoelectric accelerometer, or a digital sensor.

7. The apparatus according to claim 6, characterized in that, The detector's outer shell is covered with a layer of flexible cushioning material.

8. The apparatus according to claim 1, characterized in that, The crossbar (1) and the support rod are made of aluminum alloy or engineering plastic; the elastic buffer mechanism (4) is a helical spring.

9. The apparatus according to any one of claims 1 to 8, characterized in that, The device includes 3-6 support rods, which are arranged at equal intervals along the crossbar (1).

10. A signal acquisition method for a multi-sensor linkage delivery device, employing the device described in any one of claims 1-9, characterized in that, The method includes the following steps: S1. Extend and lock the crossbar (1) to set the spacing of the detector array; S2. Place the device in the target area so that each detector is in contact with the ground under the action of the elastic buffer mechanism (4) of the support rod; S3. After each detector stabilizes, operate the positioning control component to lock the extension and retraction state of the support rod. Start the geophone to acquire seismic signals; S4. After the data collection is completed, release the support rod lock and retract the device.

Images