Lattice structure impact force sensing system and measurement method

Abstract

The invention belongs to the technical field of geological disaster prevention and control, and particularly relates to a lattice structure impact force sensing system and a measuring method.The system comprises a plurality of impact force sensing units which are spliced together in a matrix mode; the power supply structure serves as a base of the impact force sensing units, and the power supply structure is electrically connected with the impact force sensing units; the signal integration device is electrically connected with the impact force sensing units, and the signal integration device is electrically connected with a data processing device. The invention further discloses a lattice structure impact force measuring method. More impact force data can be obtained in a unit area, and compared with a traditional single-point test, complex and changeable dynamic behaviors in an impact event can be captured more comprehensively and meticulously.

Description

Technical Field

[0001] The present invention belongs to the technical field of geological disaster prevention and control, and in particular relates to a lattice structure impact force sensing system and a measurement method. Background Art

[0002] The complex fluids formed by geological disasters have the characteristics of fast flow speed and strong impact force, which pose a serious threat to infrastructure such as buildings, bridges, roads, and the safety of human life and property. The purpose of studying its impact force characteristics is to evaluate the destructive ability of disasters on structures, provide a basis for disaster prediction and prevention, and optimize the design and construction of protective projects.

[0003] At present, the main method for measuring disaster impact force is single-point measurement at a single location, which makes both the fluid static model and the fluid dynamic model have certain limitations. They can only obtain the impact force-time history of a single location, and cannot reveal the interaction of impact characteristics such as propagation and reflection within the entire structure. It is difficult to distinguish the dominant position of local impact response from that of the overall impact response; especially for asymmetric impacts, multi-point simultaneous impacts and other cases with significant anisotropy of complex shapes or structures, single-point data interpretation is difficult and the error is large, making it difficult to ensure the accuracy of the model in the entire spatial domain and complex physical processes.

[0004] Therefore, it is particularly important to develop a lattice structure impact force sensing system and measurement method. The lattice test can realize surface measurement through spatial multi-point and high-time resolution data acquisition, more comprehensively capture the complex dynamic behavior in the impact event, and can record the spatial distribution of the impact force and its evolution pattern over time in real time and synchronously, clearly distinguish the local characteristics near the impact surface and the dynamic response characteristics of the overall structure away from the impact surface, intuitively display the uneven distribution of the impact load, the influence of structural anisotropy on the impact response and the interaction of multi-point impacts, and overcome the inherent limitations of single-point testing. This is of great significance to the research related to the impact characteristics of fluid media and the design of geological disaster prevention and control projects. Summary of the Invention

[0005] The purpose of the present invention is to provide a lattice structure impact force sensing system and a measurement method to solve the above problems.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] A lattice structure impact force sensing system, comprising:

[0008] A plurality of impact force sensing units, wherein the plurality of impact force sensing units are spliced ​​together in a matrix;

[0009] a power supply structure, serving as a base for the plurality of impact force sensing units, and the power supply structure being electrically connected to the plurality of impact force sensing units;

[0010] The signal integration device is electrically connected to the plurality of impact force sensing units, and the signal integration device is electrically connected to a data processing device.

[0011] Optionally, the impact force sensing unit includes:

[0012] Force bearing seat;

[0013] A sensor circuit board is fixed on the force-bearing seat, with a gap being set between the force-bearing seat and the sensor circuit board;

[0014] A connecting convex groove is fixed between the sensor circuit board and the force bearing seat;

[0015] A connecting groove is provided between the sensor circuit board and the force bearing seat, wherein the connecting protrusion of one of the impact force sensing units is spliced ​​and fixed with the connecting groove of another impact force sensing unit;

[0016] Connecting electronic components are fixed in both the connecting protrusion and the connecting groove, and the connecting electronic components are electrically connected to the sensor circuit board;

[0017] The data processing unit is fixed on a side of the sensor circuit board away from the force-bearing seat, and the data processing unit is electrically connected to the sensor circuit board.

[0018] Optionally, the data processing unit includes a digital-to-analog converter and a signal amplifier, one end of the digital-to-analog converter is fixed to the sensor circuit board, the other end of the digital-to-analog converter is fixed to the signal amplifier, and both the digital-to-analog converter and the signal amplifier are electrically connected to the sensor circuit board;

[0019] The signal integration device is electrically connected to the sensor circuit board.

[0020] Optionally, the power supply structure includes:

[0021] power supply;

[0022] A power supply base is electrically connected to the power supply, and a plurality of impact force sensing units are fixed on the power supply base, and the impact force sensing units are electrically connected to the power supply base.

[0023] Optionally, the power supply base includes:

[0024] A base plate, wherein a leveling portion is provided at the bottom of the base plate;

[0025] A plurality of power supply slots are provided on the substrate. The impact force sensing unit is fixed on the substrate through the connection protrusion and the power supply slot. An electronic board electrically connected to the power supply is fixed in the middle of the power supply slot. The electronic board contacts the connecting electronic component to achieve electrical connection.

[0026] Optionally, the leveling unit includes:

[0027] a level, fixed on one side of the substrate;

[0028] Four liftable rotating bolts and positioning threaded holes are arranged at the four corners of the bottom of the base plate.

[0029] Optionally, the signal integration device includes:

[0030] vertical boards;

[0031] A plurality of limiting grooves corresponding to the plurality of impact force sensing units, wherein the signal amplifiers of the impact force sensing units are inserted into the limiting grooves; a signal acquisition module is fixed in the middle of the limiting groove, and the signal acquisition module is electrically connected to the signal amplifier;

[0032] A harness barrel is fixed on a side of the vertical plate away from the limiting groove, and the harness of the signal acquisition module is placed in the harness barrel;

[0033] The second leveling portion is arranged at the bottom of the vertical plate.

[0034] Optionally, the second leveling portion includes two other symmetrically arranged liftable rotatable bolts and positioning threaded holes.

[0035] Optionally, the data processing device includes a data acquisition instrument, which is electrically connected to the plurality of signal acquisition modules, and the data acquisition instrument is electrically connected to a terminal device.

[0036] A method for measuring impact force of a lattice structure, using the above-mentioned lattice structure impact force sensing system, includes the following steps:

[0037] S1. Leveling the power supply structure and the signal integration device, and using a plurality of the impact force sensing units to construct an m×n dot matrix measurement structure; the impact force sensing units are used to obtain impact force data;

[0038] S2. Coordinate processing is performed on the plurality of impact force sensing units to obtain the signal amplitude of each coordinate point;

[0039] S3. Recording all signal amplitudes generated by the impact force sensing unit within a specified period to obtain a signal amplitude variation curve, and arranging the signal amplitude variation curves obtained by the impact force sensing unit at each coordinate point to form a data matrix and performing normalization processing;

[0040] S4. Obtaining impact force probability density distribution data;

[0041] S5. Construct a probability density distribution cloud graph model based on the impact force probability density distribution data and perform visualization processing.

[0042] Compared with the prior art, the present invention has the following advantages and technical effects:

[0043] When in use, a dot matrix monitoring structure is constructed by several impact force sensing units. Compared with single-point monitoring, the present invention can obtain more impact force data per unit area. Compared with traditional single-point testing, it can capture the complex and changeable dynamic behavior in impact events more comprehensively and meticulously, and show the results that change over time. It can intuitively show the unevenness of the impact load distribution, reveal the specific influence of the anisotropy of the structure on the impact response, and can observe the interaction between multi-point impacts, effectively overcoming the limitations inherent in single-point testing, making the research results more comprehensive and accurate, so that the local characteristic changes near the impact surface and the dynamic response changes of the overall structure away from the impact surface can be clearly distinguished, which helps to deeply understand the dynamic behavior of geological disaster fluids and provide support for the development and application of related theories. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive work.

[0045] Figure 1 This is a schematic structural diagram of the impact force sensing system with a lattice structure according to the present invention;

[0046] Figure 2 Schematic diagram of the impact force sensing unit of the present invention;

[0047] Figure 3 This is a schematic diagram of the power supply base of the present invention;

[0048] Figure 4 This is a left side view of the signal integration device of the present invention;

[0049] Figure 5 This is a front view of the signal integration device of the present invention;

[0050] Figure 6 The evolution results of impact force data from single-point measurement implemented in traditional technology;

[0051] Figure 7The cloud diagram of the spatial distribution of impact force measured by the dot matrix surface type in the present invention;

[0052] Among them, 1. power supply; 5. digital-to-analog converter; 6. signal amplifier; 7. data acquisition instrument; 8. terminal equipment; 20. signal integration device; 21. power supply base; 22. sensor circuit board; 23. connection of electronic components; 24. connection convex groove; 25. force seat; 26. connection groove; 27. electronic board; 28. power supply slot; 29. ​​level; 30. liftable rotating bolt and positioning threaded hole; 31. harness barrel; 32. limit slot; 33. signal acquisition module; 34. impact force sensing unit. DETAILED DESCRIPTION

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0054] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0055] Reference Figures 1 to 7 The present invention discloses a lattice structure impact force sensing system, comprising:

[0056] A plurality of impact force sensing units 34 are spliced ​​together in a matrix;

[0057] A power supply structure, serving as a base for the plurality of impact force sensing units 34, and electrically connected to the plurality of impact force sensing units 34;

[0058] The signal integration device 20 is electrically connected to the plurality of impact force sensing units 34 , and the signal integration device 20 is electrically connected to a data processing device.

[0059] When in use, a dot matrix monitoring structure is constructed by a number of impact force sensing units 34. Compared with single-point monitoring, the present invention can obtain more impact force data per unit area. Compared with traditional single-point testing, it can capture the complex and changeable dynamic behaviors in impact events more comprehensively and meticulously, and show the results that change over time. It can intuitively show the unevenness of the impact load distribution, reveal the specific influence of the anisotropy of the structure on the impact response, and can observe the interaction between multiple-point impacts, effectively overcoming the limitations inherent in single-point testing, making the research results more comprehensive and accurate, so that the local characteristic changes occurring near the impact surface and the dynamic response changes of the overall structure away from the impact surface can be clearly distinguished, which helps to deeply understand the dynamic behavior of geological disaster fluids and provide support for the development and application of related theories.

[0060] As an optional embodiment, the impact force sensing unit 34 includes:

[0061] Force bearing seat 25;

[0062] The sensor circuit board 22 is fixed on the force-bearing seat 25, and a gap is set between the force-bearing seat 25 and the sensor circuit board 22;

[0063] The connecting protrusion 24 is fixed between the sensor circuit board 22 and the force bearing seat 25;

[0064] The connecting groove 26 is provided between the sensor circuit board 22 and the force bearing seat 25, wherein the connecting protrusion 24 of one impact force sensor unit 34 is spliced ​​and fixed with the connecting groove 26 of another impact force sensor unit 34;

[0065] The connecting protrusion 24 and the connecting groove 26 are both fixed with connecting electronic components 23, and the connecting electronic components 23 are electrically connected to the sensor circuit board 22;

[0066] The data processing unit is fixed to a side of the sensor circuit board 22 away from the force-bearing seat 25 , and the data processing unit is electrically connected to the sensor circuit board 22 .

[0067] As an optional embodiment, the data processing unit includes a digital-to-analog converter 5 and a signal amplifier 6. One end of the digital-to-analog converter 5 is fixed to the sensor circuit board 22, and the other end of the digital-to-analog converter 5 is fixed to the signal amplifier 6. The digital-to-analog converter 5 and the signal amplifier 6 are both electrically connected to the sensor circuit board 22.

[0068] The signal integration device 20 is electrically connected to the sensor circuit board 22 .

[0069] The impact force sensing unit 34 includes a force bearing seat 25 , a connecting electronic component 23 , a connecting protrusion 24 , a connecting groove 26 , a sensing circuit board 22 , a digital-to-analog converter 5 , and a signal amplifier 6 .

[0070] Furthermore, a double-nut locking mechanism is provided between the connecting protrusion 24 and the connecting groove 26 to effectively prevent separation or loosening during the measurement process, thereby ensuring the accurate position and stable force of the system during measurement.

[0071] The force bearing seat 25 can be designed to be rectangular, circular, or deformed according to actual conditions, and the outer diameter can be precisely adjusted within the range of 1mm-100mm. It has high flexibility, allowing the measurement system to adapt to various impact measurement needs from small to large ranges.

[0072] Furthermore, several impact force sensing units 34 can be tightly connected together in a preset arrangement through the interconnection between the connecting grooves 24 and the connecting grooves 26, so as to achieve fixed single-point measurement and dot matrix structure surface measurement results to meet the requirements of specific usage ranges, greatly broadening the application range of the sensing system.

[0073] The connecting electronic components 23 in each impact force sensing unit 34 are correspondingly connected to each other, so as to realize the connection of the circuit and the transmission of the sensing signal.

[0074] As an optional implementation, the power supply structure includes:

[0075] Power supply 1;

[0076] The power supply base 21 is electrically connected to the power supply 1 . A plurality of impact force sensing units 34 are fixed on the power supply base 21 , and the impact force sensing units 34 are electrically connected to the power supply base 21 .

[0077] The power supply 1 is not limited to a mobile power supply and a power cabinet power supply, and its purpose is to provide continuous and stable power support for the lattice structure impact force sensing system.

[0078] As an optional embodiment, the power supply base 21 includes:

[0079] A base plate, wherein a leveling portion is provided at the bottom of the base plate;

[0080] Several power supply slots 28 are opened on the substrate. The impact force sensing unit 34 is fixed on the substrate by connecting the protruding slot 24 and the power supply slot 28. An electronic board 27 electrically connected to the power supply 1 is fixed in the middle of the power supply slot 28. The electronic board 27 contacts the connecting electronic component 23 to achieve electrical connection.

[0081] Furthermore, the power supply base 21 is connected to the power supply 1 and has several power supply slots 28, and an electronic board 27 is installed in the middle of each power supply slot 28. The electronic board 27 is correspondingly connected to the connecting electronic components 23 in the impact force sensing unit 34 to realize the power supply and fixation of one or more impact force sensing units 34.

[0082] As an optional embodiment, the leveling unit includes:

[0083] A level 29, fixed to one side of the base plate;

[0084] Four liftable rotating bolts and positioning threaded holes 30 are provided at the four corners of the bottom of the base plate.

[0085] The bottom of the power supply base 21 has four liftable rotating bolts and positioning threaded holes 30, which can be leveled according to the level meter 29 installed in the middle of the power supply base 21 to achieve the accuracy of the measurement data.

[0086] As an optional implementation, the signal integration device 20 includes:

[0087] vertical boards;

[0088] The plurality of limiting slots 32 correspond to the plurality of impact force sensing units 34 in a one-to-one manner. The number and specific positions of the limiting slots 32 can be increased or decreased according to actual needs, and the distance L between adjacent limiting slots 32 is ≥ D (D is the diameter of the limiting slot). The signal amplifier 6 of the impact force sensing unit 34 is inserted into the limiting slot 32; a signal acquisition module 33 is fixed in the middle of the limiting slot 32, and the signal acquisition module 33 is electrically connected to the signal amplifier 6;

[0089] The harness barrel 31 is fixed to the side of the vertical plate away from the limiting groove 32, and the harness of the signal acquisition module 33 is placed in the harness barrel 31;

[0090] The second leveling portion is arranged at the bottom of the vertical plate.

[0091] As an optional embodiment, the second leveling portion includes two other symmetrically arranged liftable rotatable bolts and positioning threaded holes 30 .

[0092] As an optional implementation, the data processing device includes a data acquisition device 7 , which is electrically connected to the plurality of signal acquisition modules 33 , and the data acquisition device 7 is electrically connected to a terminal device 8 .

[0093] The terminal device 8 serves as the core interface for interaction between the entire system and the user. It can control the flexible setting of a single impact force sensing unit 34 at a fixed point or the m×n dot matrix structure surface measurement 4 formed by multiple impact force sensing units 34, and can visualize the measurement dynamic or static data graph in real time.

[0094] The present invention also provides a method for measuring an impact force sensing system of a lattice structure, comprising the following steps:

[0095] S1. Level the power supply structure and the signal integration device 20, and use a plurality of impact force sensing units 34 to construct an m×n dot matrix measurement structure; the impact force sensing units 34 are used to obtain impact force data;

[0096] S2. Coordinate processing is performed on the plurality of impact force sensing units 34 to obtain the signal amplitude of each coordinate point;

[0097] S3. Record all signal amplitudes generated by the impact force sensing unit 34 within a specified period to obtain a signal amplitude variation curve, and organize the signal amplitude variation curves obtained by the impact force sensing unit 34 at each coordinate point into a data matrix and perform normalization processing;

[0098] S4. Obtaining impact force probability density distribution data;

[0099] S5. Construct a probability density distribution cloud map model based on the impact force probability density distribution data and perform visualization processing.

[0100] The specific steps include:

[0101] Data analysis and processing mode

[0102] The collected impact multi-source heterogeneous data are analyzed in single-point and lattice structure surface mode.

[0103] The single-point analysis intercepts the impact parameters measured by a single impact force sensing unit 34 at a set location, capturing the impact load between the initial point of non-zero impact force and the point of zero return, recording it as the effective impact load signal. When extracting the effective signal's wavelet coefficients, the noise wavelet coefficients are removed, and the signal is reconstructed to achieve this goal. This is achieved by using the Daubechie (dbN) wavelet to perform wavelet decomposition of the signal. The high-frequency coefficients of the wavelet decomposition are then threshold-quantized, and the wavelet-reconstructed soft-threshold impact signal is then subjected to noise reduction processing to obtain a single-point impact force-time evolution data graph.

[0104] The lattice structure surface analysis takes the m×n lattice structure surface measurement in this example as an example, where the values ​​of m and n are both 4. Specifically, in order to facilitate data processing, the present invention marks the position of the impact force sensing unit 34 with corresponding coordinates for coordinate processing. Refer to formula (2). Based on physical principles and data fusion technology, the relationship between the spatial distribution of the impact force and the impact force magnitude is deeply calculated, and the interaction forces at the microscopic scale between different phases are separated and quantified, realizing multi-field synchronous measurement operations and micro-scale decoupling of the interphase forces to obtain the corresponding signal amplitude.

[0105]

[0106] The signal amplitudes recorded by each impact force sensing unit 34 in a specific measurement period are sorted and arranged and combined as shown in formula (3), ultimately forming one or more structured data matrices, and the obtained array data are normalized.

[0107]

[0108] Where Q is the lateral sensor signal amplitude, and R is the longitudinal sensor signal amplitude.

[0109] A series of related distribution functions such as Log-logistic, Generalized Pareto, and Normal are used for processing and analysis. As shown in formula (4), the goodness of fit of different functions is compared to accurately describe the probability density characteristics of the current impact force. The probability density distribution data of the impact force can be obtained for subsequent calculations.

[0110]

[0111] Where PDF is the probability density function, σ V is the PDF shape parameter, determined by PDF, F V is the normalized impact force data, dimensionless quantity, e is a natural constant, m is the intermediate quantity for calculation, μ V is the scale parameter of the PDF distribution.

[0112] The scale parameters of the irregular probability density distribution are gridded and interpolated using Python+Matplotlib, MATLAB, etc. The cloud map distribution model is determined according to the data, and the pcolormesh function is used to establish a high-resolution pseudo-color map of the impact force probability density distribution. Viridis is used to select the appropriate color mapping, and the vmin and vmax parameters are set to clearly define the minimum and maximum values ​​of the mapped color, which can highlight the overall data characteristics. Finally, the high-resolution dynamic / static spatial distribution cloud map is visualized on the terminal device 8 display.

[0113] When conducting impact force tests on fluid-type geological disasters, the present invention can perform single-point measurements at a certain position or dot matrix surface measurements. Based on the two modes and the selection of test points, flexible settings can be made, which is crucial for understanding the impact performance of fluids.

[0114] The present invention can flexibly design and replace force seats of different shapes and sizes in the impact force sensing unit according to actual test details, so as to perform all-round impact testing on the fluid to be tested, ensure the comprehensiveness and accuracy of the data, improve measurement accuracy, and more accurately reflect the overall impact characteristics.

[0115] The present invention can display not only the impact force data graph of single-point measurement but also the real-time dynamic and static data cloud graph of impact force in the dot matrix surface measurement mode through the setting of the terminal device.

[0116] The present invention can be used to measure and analyze the impact characteristics of different geological disaster fluid media, has a wide range of applicability, and can adapt to complex field survey terrain by lifting and rotating bolts and positioning threaded holes, providing a reliable theoretical basis and prevention and control design suggestions for geological disaster prevention and control.

[0117] The lattice structure impact force sensing system can simultaneously acquire high-resolution data at one or more points in space, achieving surface measurement results. It can more comprehensively and meticulously capture the complex and variable dynamic behavior of impact events, display results that change over time, intuitively demonstrate the uneven distribution of impact loads, and reveal the specific impact of structural anisotropy on the impact response. It can also observe the interaction between multi-point impacts, effectively overcoming the inherent limitations of single-point testing and making research results more comprehensive and accurate. It can clearly distinguish between local characteristic changes occurring near the impact surface and changes in the dynamic response of the overall structure away from the impact surface, contributing to a deeper understanding of the dynamic behavior of fluid-like structures in geological hazards and providing support for the development and application of related theories. The results of the lattice structure impact force sensing system test can enable researchers to more accurately evaluate and predict the response of geological structures under impact loads. This is of great significance for improving the reliability and safety of geological disaster prevention and control projects, thereby playing a greater role in related fields.

[0118] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0119] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A lattice structure impact force sensing system, characterized in that: include: A plurality of impact force sensing units (34), wherein the plurality of impact force sensing units (34) are spliced ​​together in a matrix; a power supply structure serving as a base for the plurality of impact force sensing units (34), and the power supply structure being electrically connected to the plurality of impact force sensing units (34); A signal integration device (20) is electrically connected to the plurality of impact force sensing units (34), and the signal integration device (20) is electrically connected to a data processing device.

2. The lattice structure impact force sensing system according to claim 1, characterized in that: The impact force sensing unit (34) comprises: Force bearing seat (25); A sensor circuit board (22) is fixed on the force-bearing seat (25), and a gap is provided between the force-bearing seat (25) and the sensor circuit board (22); A connecting convex groove (24) is fixed between the sensor circuit board (22) and the force bearing seat (25); A connecting groove (26) is provided between the sensing circuit board (22) and the force bearing seat (25), wherein the connecting protruding groove (24) of one of the impact force sensing units (34) is spliced ​​and fixed with the connecting groove (26) of another impact force sensing unit (34); A connecting electronic component (23) is fixed in each of the connecting protrusion (24) and the connecting groove (26), and the connecting electronic component (23) is electrically connected to the sensor circuit board (22); A data processing unit is fixed on a side of the sensor circuit board (22) away from the force bearing seat (25), and the data processing unit is electrically connected to the sensor circuit board (22).

3. The lattice structure impact force sensing system according to claim 2, characterized in that: The data processing unit comprises a digital-to-analog converter (5) and a signal amplifier (6), one end of the digital-to-analog converter (5) is fixed to the sensor circuit board (22), the other end of the digital-to-analog converter (5) is fixed to the signal amplifier (6), and both the digital-to-analog converter (5) and the signal amplifier (6) are electrically connected to the sensor circuit board (22); The signal integration device (20) is electrically connected to the sensor circuit board (22).

4. The lattice structure impact force sensing system according to claim 3, characterized in that: The power supply structure includes: Power supply (1); The power supply base (21) is electrically connected to the power supply (1); a plurality of impact force sensing units (34) are fixed on the power supply base (21); and the impact force sensing units (34) are electrically connected to the power supply base (21).

5. The lattice structure impact force sensing system according to claim 4, characterized in that: The power supply base (21) comprises: A base plate, wherein a leveling portion is provided at the bottom of the base plate; A plurality of power supply slots (28) are provided on the substrate. The impact force sensing unit (34) is fixed on the substrate by cooperating with the power supply slots (28) through the connecting protruding slots (24). An electronic board (27) electrically connected to the power supply (1) is fixed in the middle of the power supply slots (28). The electronic board (27) is in contact with the connecting electronic element (23) to achieve electrical connection.

6. The lattice structure impact force sensing system according to claim 5, characterized in that: The leveling portion comprises: a level (29) fixed on one side of the base plate; Four lifting and rotating bolts and positioning threaded holes (30) are arranged at the four corners of the bottom of the base plate.

7. The lattice structure impact force sensing system according to claim 6, characterized in that: The signal integration device (20) comprises: vertical boards; A plurality of limiting grooves (32) are provided, corresponding one to one with the plurality of impact force sensing units (34), and the signal amplifiers (6) of the impact force sensing units (34) are inserted into the limiting grooves (32); a signal acquisition module (33) is fixed in the middle of the limiting grooves (32), and the signal acquisition module (33) is electrically connected to the signal amplifiers (6); A wire harness barrel (31) is fixed on a side of the vertical plate away from the limiting groove (32), and the wire harness of the signal acquisition module (33) is placed in the wire harness barrel (31); The second leveling portion is arranged at the bottom of the vertical plate.

8. The lattice structure impact force sensing system according to claim 7, characterized in that: The second leveling portion includes two other symmetrically arranged liftable rotatable bolts and a positioning threaded hole (30).

9. The lattice structure impact force sensing system according to claim 7, characterized in that: The data processing device comprises a data acquisition instrument (7), the data acquisition instrument (7) is electrically connected to a plurality of the signal acquisition modules (33), and the data acquisition instrument (7) is electrically connected to a terminal device (8).

10. A method for measuring impact force of a lattice structure, using a lattice structure impact force sensing system according to any one of claims 1 to 9, characterized in that: The steps include: S1, leveling the power supply structure and the signal integration device (20), and using a plurality of the impact force sensing units (34) to construct an m×n dot matrix measurement structure; the impact force sensing units (34) are used to obtain impact force data; S2, coordinate processing of the plurality of impact force sensing units (34) to obtain the signal amplitude of each coordinate point; S3, recording all signal amplitudes generated by the impact force sensing unit (34) within a specified period to obtain a signal amplitude variation curve, and arranging the signal amplitude variation curves obtained by the impact force sensing unit (34) at each coordinate point to form a data matrix and normalizing the data matrix; S4. Obtaining impact force probability density distribution data; S5. Construct a probability density distribution cloud graph model based on the impact force probability density distribution data and perform visualization processing.

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