A throwable surface object vibration data acquisition device

Abstract

The present invention discloses a throwable surface object vibration data acquisition device, the outer shell is a cube structure, the spherical empty warehouse is arranged inside the outer shell, the hollow sphere is arranged inside the spherical empty warehouse, a plurality of balls are filled between the outer surface of the hollow sphere and the inner surface of the spherical empty warehouse, a rectangular box is suspended and arranged in the middle of the hollow sphere, the upper surface and the lower surface of the rectangular box are both square, the four sides of the rectangular box are fixedly connected to the inner surface of the hollow sphere through springs, the seismic wave sensor array, the control and wireless communication unit are arranged at the bottom of the rectangular box, and are used to receive, store and transmit the data collected by the seismic wave sensor array through wireless transmission, and the counterweight is fixedly arranged at the bottom of the hollow sphere. The present invention can be flexibly deployed in various environments, and can automatically adjust to a vertical state to achieve stable measurement, and at the same time has high sensitivity and adjustability, and can realize wireless collection of surface object vibration data and vibration environment detection.

Description

Technical Field

[0001] The invention relates to the technical field of seismic wave sensors and their application, and in particular to a throwable vibration data acquisition device. Background Art

[0002] Seismic data collection based on seismic wave sensors is usually deployed on the ground or underground and is suitable for large areas and multi-point measurements. Traditionally, seismic wave sensors are mainly used in seismological research, oil and gas exploration, and structural health monitoring. However, with technological advances, the application of seismic wave sensors in other fields has also begun to increase, including vehicle and human activity recognition, security monitoring, and environmental monitoring. Data collection in these new application scenarios requires sensors to have flexible deployment capabilities and adapt to diverse environments.

[0003] The basic structure of a seismic wave sensor includes a fixed stator coil and a permanent magnet mass block that moves along the axis inside the coil. This design can only guarantee the sensitivity and accuracy of the sensor in a vertical state. For the sensor to work properly, it must be kept perpendicular to the ground to ensure that the mass block can vibrate freely relative to the stator coil. The limitations of traditional seismic wave sensors in vertical fixation make it difficult to flexibly deploy existing seismic wave sensors and unable to adapt to decentralized or temporarily installed application scenarios. In addition, traditional sensors may lack sufficient sensitivity and flexible adjustment capabilities when detecting weaker vibration signals, and the deployment of seismic wave sensors alone may have single-point failures, weak signals, and the inability to calculate the direction of the earthquake source. In the application of detecting vibration signals generated by vehicles and human activities, sensors are often required to have higher sensitivity. These requirements mean that in new application scenarios, sensor arrays not only need to meet traditional structural health monitoring and earthquake detection needs, but also need to have characteristics such as adaptability to various environments, easy deployment, strong stability, and high sensitivity.

[0004] It can be seen that the existing seismic wave sensors are difficult to meet the data collection requirements in new application scenarios, and there is an urgent need to propose a new vibration data collection device based on seismic wave sensors to solve these problems. Summary of the invention

[0005] In order to solve the limitations of existing seismic wave sensors in vertical fixation, the difficulty in flexible deployment and the inability to adapt to decentralized or temporarily installed application scenarios, as well as the technical problems that traditional sensors lack sufficient sensitivity and flexible adjustment capabilities when detecting weaker vibration signals, the present invention proposes a throwable surface object vibration data acquisition device, which can be flexibly deployed in various environments and can automatically adjust to a vertical state to achieve stable measurement. It also has high sensitivity and adjustability, and can realize wireless collection of surface object vibration data and vibration environment detection.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0007] A throwable surface object vibration data acquisition device, comprising:

[0008] Shell; the shell is a cube structure;

[0009] A spherical empty warehouse; the spherical empty warehouse is arranged inside the shell;

[0010] Hollow sphere; the hollow sphere is arranged inside the spherical empty warehouse, and a plurality of balls are filled between the outer surface of the hollow sphere and the inner surface of the spherical empty warehouse;

[0011] A rectangular box; the rectangular box is suspended in the middle of the hollow sphere, the upper surface and the lower surface of the rectangular box are both square, and the four sides of the rectangular box are fixedly connected to the inner surface of the hollow sphere through springs;

[0012] A seismic wave sensor array; the seismic wave sensor array is arranged at the bottom of the rectangular box;

[0013] A control and wireless communication unit; the control and wireless communication unit is arranged inside the rectangular box and is used to receive, store and wirelessly transmit the data collected by the seismic wave sensor array;

[0014] Counterweight block; the counterweight block is fixedly arranged at the bottom of the hollow sphere.

[0015] Optionally, the control and wireless communication unit includes a microcontroller, a static random access memory, a flash memory and a wireless radio frequency module arranged on an embedded circuit board.

[0016] Optionally, the hollow sphere is composed of two hemispheres snapped together.

[0017] Optionally, the two hemispheres of the hollow sphere are connected by a threaded structure at the joint.

[0018] Optionally, the seismic wave sensor array is perpendicular to the ground and symmetrical in four directions.

[0019] Optionally, there are four seismic wave sensors in the seismic wave sensor array, which are respectively arranged at the four corners of the bottom of the rectangular box.

[0020] Optionally, the seismic wave sensor array is arranged linearly, annularly or in a grid.

[0021] Optionally, the ball is a smooth steel ball.

[0022] Optionally, the rectangular box is made of metal.

[0023] Optionally, the tension of the spring is adjustable.

[0024] The beneficial effects of the present invention are:

[0025] (1) The device of the present invention can be thrown, placed or deployed in various environments through innovative design and unique deployment method, and automatically adjusts to a vertical state after landing. This feature makes it unnecessary for the sensor to be fixed in a specific position, significantly improving the flexibility of deployment. It can be deployed in a throwing manner in scenarios requiring large-scale data collection, covering a wide area, and can be applied to various scenarios such as temporary deployment, large-scale monitoring, and mobile data collection;

[0026] (2) The device of the present invention has significant advantages in terms of measurement accuracy, detection range, applicability, data acquisition efficiency and cost. It not only solves the fixity problem of traditional seismic wave sensors, but also provides higher flexibility, reliability and functionality through the array structure;

[0027] (3) The device of the present invention is suitable for a variety of application scenarios, including earthquake detection, security monitoring, environmental monitoring, vehicle and human activity identification, etc. It can meet different application requirements and provide a reliable, flexible, efficient and easy-to-use solution for real-time data collection, transmission and detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the external structure of an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the AA section of an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the BB section of an embodiment of the present invention;

[0031] Figure 4 It is a schematic diagram of the internal structure of a spherical empty warehouse according to an embodiment of the present invention.

[0032] In the figure: 100 - shell, 200 - spherical empty chamber, 210 - ball, 300 - hollow sphere, 400 - rectangular box, 410 - spring, 500 - seismic wave sensor array, 600 - control and wireless communication unit, 700 - counterweight. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] In the description of the present invention, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0037] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings.

[0040] See also Figures 1 to 4The present invention proposes an embodiment of a throwable surface object vibration data acquisition device, including a shell 100, a spherical empty chamber 200, a hollow sphere 300, a rectangular box 400, a seismic wave sensor array 500, a control and wireless communication unit 600 and a counterweight block 700.

[0041] The housing 100 is a cube structure. The outer shape of the device is a cube, which has a balanced and stable geometric structure. The cube design provides a sturdy housing to ensure that the internal components are effectively protected during transportation, movement, or even falling, and to prevent external pressure and impact from causing damage to the internal structure. In addition, the square structure of the housing can ensure the stability of the sensor on the ground.

[0042] In a specific implementation, the material of the housing 100 can be durable plastic, metal or other composite materials. The housing 100 should be strong and durable, and be able to resist spilling, falling and other external impacts.

[0043] The spherical hollow chamber 200 is disposed inside the housing. The spherical hollow chamber 200 provides space for the inner core of the device. The design of the spherical hollow chamber 200 ensures that the hollow sphere 300 has sufficient rotation space and provides a layer of buffer to resist direct impact of external forces on the hollow sphere 300.

[0044] The hollow sphere 300 is arranged inside the spherical empty bin 200, and a plurality of balls 210 are filled between the outer surface of the hollow sphere 300 and the inner surface of the spherical empty bin 200. The plurality of balls 210 ensure that the hollow sphere 300 can rotate freely inside the spherical empty bin 200, reduce friction, and enhance flexibility. This design enables the hollow sphere 300 to adjust its direction through gravity, ensuring that the device can automatically adjust its direction after being thrown, and providing a basis for automatic verticality.

[0045] In some embodiments, the ball 210 is a smooth steel ball, which should ensure that the hollow sphere can rotate smoothly.

[0046] In some embodiments, the hollow sphere 300 is formed by two hemispheres being locked together.

[0047] In some embodiments, the two hemispheres of the hollow sphere 300 are connected by a thread structure at the joint.

[0048] It should be noted that the cubic structure of the outer shell 100 and the design of the internal spherical hollow chamber 200, combined with the free rotation ability of the hollow sphere 300, enable the device to be thrown, sprinkled or placed in different environments, providing high flexibility. The device does not need to be fixedly installed and can be quickly deployed in different locations to meet temporary or large-scale vibration data collection needs.

[0049] The rectangular box 400 is suspended in the middle of the hollow sphere 300. The upper and lower surfaces of the rectangular box 400 are both square, and the four sides of the rectangular box 400 are fixedly connected to the inner surface of the hollow sphere 300 through springs 410. The two faces of the rectangular box 400 are square, which can ensure that it remains stable during rotation. This double-layer structure provides additional stability and increases the flexibility of the device. The four sides of the rectangular box 400 are surfaces of the same area, and are connected to the inner surface of the hollow sphere 300 through four springs 410. This suspension structure allows the rectangular box 400 to remain suspended in the hollow sphere 300, reducing the impact of external vibration on the inside of the device. The device can remain stable in various environments, reduce errors caused by vibration or impact, and ensure the reliability of the sensor. The four springs 410 play a buffering role, ensuring that the seismic wave sensor array 500 can still work stably in a suspended state. In a specific implementation, the spring 410 should have sufficient elasticity and durability to ensure that the rectangular box 400 remains suspended in the hollow sphere, and at the same time has a certain buffering effect. The spring 410 can effectively buffer the impact force from the ground when the device lands after being thrown, thereby protecting the seismic wave sensor array 500 and the control and wireless communication unit 600 in the rectangular box 400.

[0050] In some embodiments, the tension of the spring 410 is adjustable. The flexibility of the suspension structure can be adjusted as needed. By adjusting the tension of the spring 410, the suspension state of the rectangular box 400 can be changed, thereby adjusting the stability and flexibility of the device to adapt to different application scenarios. This design ensures that the device can remain stable in different deployment environments, provides the ability to adapt to different environments, and enhances the practicality of the device in various application scenarios.

[0051] In a specific implementation, the natural frequency and frequency response characteristics of the seismic detector can be adjusted by changing the combination of the inertial mass of the seismic detector and the spring 410 in the seismic wave sensor array 500. Specifically, by increasing the stiffness of the spring 410 or reducing the inertial mass of the seismic detector, the natural frequency can be increased, thereby increasing the sensitivity to high-frequency seismic waves; by reducing the stiffness of the spring 410 or increasing the inertial mass of the seismic detector, the natural frequency can be reduced and the sensitivity to low-frequency seismic waves can be increased. Detecting vibration signals generated by vehicles and human activities often requires sensors to have higher sensitivity. This may require the introduction of signal amplification technology and damping ratio adjustment to ensure the accuracy of the detection results.

[0052] The seismic wave sensor array 500 is arranged at the bottom of the rectangular box 400. By adopting array sensors, higher measurement accuracy and resolution can be achieved. Array sensors can cover a wider range and obtain more information through multi-dimensional observation, such as identifying signals in different directions. The array can also be flexibly adjusted according to the complex surface shape to suit different detection environments. After the array deployment of seismic wave sensors, it can suppress noise, perform time delay estimation, enhance the collected vibration signals, have a certain robustness to reverberation and non-stationary environments, and can estimate the direction angle of the earthquake source.

[0053] In a specific implementation, the seismic wave sensor array 500 has the ability to amplify signals to ensure high sensitivity to weaker vibration signals. At the same time, the damping ratio can be adjusted by setting the tension of the spring 410 to meet different detection requirements and provide a wider range of application scenarios.

[0054] In some embodiments, the seismic wave sensor array 500 is perpendicular to the ground and is symmetrical in four directions.

[0055] In some embodiments, the seismic wave sensor array 500 includes four seismic wave sensors, which are respectively disposed at the four corners of the bottom of the rectangular box.

[0056] In some embodiments, the seismic wave sensor array 500 is arranged in a linear manner, a circular manner, or a grid manner.

[0057] It should be noted that the geometric layout of the seismic wave sensor array 500 can be adjusted as needed, including linear arrangement, annular arrangement and grid arrangement, but must maintain four-way symmetry to ensure overall balance and stability. The best sensor layout can be selected according to different application requirements to improve the flexibility of data collection and adapt to different vibration sources and detection scenarios.

[0058] The control and wireless communication unit 600 is disposed inside the rectangular parallelepiped box 400 and is used to receive, store and wirelessly transmit the data collected by the seismic wave sensor array 500 .

[0059] In some embodiments, the control and wireless communication unit 600 includes a microcontroller (MCU), a static random access memory (SRAM), a flash memory (FLASH), and a wireless radio frequency module arranged on an embedded circuit board. The functions that can be completed by the embedded device and the software it runs include data storage, transmission, and simple processing, and support wireless data transmission, which is convenient for real-time data return and remote monitoring. Wireless transmission of data can be achieved through the wireless radio frequency module, which is convenient for real-time data return. In addition, the MCU on the circuit board can perform simple processing on the data collected by the array to ensure the accuracy and integrity of the data. SRAM and FLASH are used for temporary storage and persistent storage of data, providing a basis for further analysis of the data.

[0060] In a specific implementation, the seismic wave sensor array 500 is connected to the control and wireless communication unit 600 through a wire. The control and wireless communication unit 600 supports wireless data transmission and real-time data processing. The device can transmit data to a remote monitoring system in real time, which is convenient for users to perform real-time monitoring and data analysis, and reduces the complexity of data collection and transmission.

[0061] The counterweight 700 is fixedly arranged at the bottom of the hollow sphere. The function of the counterweight 700 is to ensure that the hollow sphere 300 can remain vertical in the spherical empty chamber 200, thereby ensuring that all seismic wave sensors can be perpendicular to the ground. The counterweight 700 provides the ability of automatic adjustment to ensure that the seismic wave sensor array 500 always remains in the correct working state.

[0062] It should be noted that the hollow sphere 300 in the spherical hollow chamber 200 of the device is filled with balls 210, and the counterweight 700 is located at the bottom of the hollow sphere 300, so that the hollow sphere 300 can be automatically adjusted to a vertical state. Even if the device is thrown or moved, the hollow sphere and the seismic wave sensor array 500 still remain vertical, ensuring the normal operation of the sensor and improving the accuracy of the data.

[0063] In practice, the weight and position of the counterweight are precisely designed to ensure that the hollow sphere remains vertical during rotation. This allows the device to automatically adjust to a vertical position after being thrown, moved or shaken. This ensures that the device automatically adjusts to a vertical position in any situation, allowing the seismic wave sensor to work normally without manual readjustment.

[0064] The above design elements together constitute the technical solution of the present invention, ensuring that the device of the embodiment of the present invention achieves a balance between flexible deployment and stable operation.

[0065] The device of the embodiment of the present invention can be thrown, placed or deployed in various environments through innovative design and unique deployment method, and automatically adjust to a vertical state after landing. This feature makes it unnecessary for the sensor to be fixed in a specific position, significantly improving the flexibility of deployment. It can be deployed in a scattered manner in scenarios requiring large-scale data collection to cover a wide area, and can be suitable for various scenarios such as temporary deployment, large-scale monitoring, and mobile data collection. The device of the embodiment of the present invention has significant advantages in measurement accuracy, detection range, applicability, data collection efficiency and cost. It not only solves the fixity problem of traditional seismic wave sensors, but also provides higher flexibility, reliability and functionality through an array structure. The device of the embodiment of the present invention is suitable for a variety of application scenarios, including earthquake detection, security monitoring, environmental monitoring, vehicle and human activity recognition, etc., can meet different application requirements, and provide a reliable, flexible, efficient and easy-to-use solution for real-time data collection, transmission and detection.

[0066] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A throwable surface object vibration data acquisition device, characterized in that: include: shell; The shell is a cube structure; Spherical empty warehouse; The spherical empty chamber is arranged inside the shell; hollow sphere; The hollow sphere is arranged inside the spherical empty chamber, and a plurality of balls are filled between the outer surface of the hollow sphere and the inner surface of the spherical empty chamber; A rectangular box; the rectangular box is suspended in the middle of the hollow sphere, the upper surface and the lower surface of the rectangular box are both square, and the four sides of the rectangular box are fixedly connected to the inner surface of the hollow sphere through springs; A seismic wave sensor array; the seismic wave sensor array is arranged at the bottom of the rectangular box; A control and wireless communication unit; the control and wireless communication unit is arranged inside the rectangular box and is used to receive, store and wirelessly transmit data collected by the seismic wave sensor array; Counterweight block; the counterweight block is fixedly arranged at the bottom of the hollow sphere.

2. A throwable surface object vibration data acquisition device as claimed in claim 1, characterized in that: The control and wireless communication unit includes a microcontroller, a static random access memory, a flash memory and a wireless radio frequency module which are arranged on an embedded circuit board.

3. The throwable surface object vibration data acquisition device according to claim 1, characterized in that: The hollow sphere is formed by the clamping of two hemispheres.

4. A throwable surface object vibration data acquisition device as claimed in claim 3, characterized in that: The two hemispheres of the hollow sphere are connected by a threaded structure at the joint.

5. The throwable surface object vibration data acquisition device according to claim 1, characterized in that: The seismic wave sensor array is perpendicular to the ground and symmetrical in four directions.

6. A throwable surface object vibration data acquisition device as claimed in claim 5, characterized in that: There are four seismic wave sensors in the seismic wave sensor array, which are respectively arranged at the four corners of the bottom of the rectangular box.

7. The throwable surface object vibration data acquisition device according to claim 5, characterized in that: The seismic wave sensor array is arranged linearly, annularly or in a grid.

8. The throwable surface object vibration data acquisition device according to claim 1, characterized in that: The balls are smooth steel balls.

9. The throwable surface object vibration data acquisition device according to claim 1, characterized in that: The rectangular box is made of metal.

10. The throwable surface object vibration data acquisition device according to claim 1, characterized in that: The tension of the spring is adjustable.

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