Indoor surfing action acquisition device
By setting pressure sensors and a matrix of probes on the surfboard, combined with microcontroller processing and analog-to-digital conversion, the problems of single-data type and low acquisition frequency of existing tools are solved, enabling multi-dimensional data acquisition and scientific analysis, and improving the accuracy of training guidance.
Patent Information
- Application Number
- CN202520545662.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Existing indoor surfing motion capture tools suffer from limited data types, small data volumes, and low collection frequencies, making it impossible to accurately recreate the on-site environment and conduct multi-dimensional, three-dimensional analysis.
An indoor surfing motion acquisition device was designed, comprising a three-layer surfboard: an upper surface layer for foot pedals, a middle layer with a pressure sensor matrix and a control board, and a lower surface layer for water contact, with a probe matrix and a thin-film pressure sensor. Data is acquired through the pressure sensor and probe matrix, processed by a microcontroller and converted into digital values by an analog-to-digital converter, and then combined with a binocular camera to acquire motion images.
It enables the collection of surfer training data from multiple dimensions, allowing for scientific and accurate analysis and guidance of training, thus improving the richness and frequency of data collection.
Smart Images
Figure CN223601962U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of image recognition and sensor, especially is involved in an indoor surfing action collection device. BACKGROUND
[0002] With the improvement of living standards, surfing has a larger fan group. In order to reduce the technical threshold and risk of its promotion, indoor surfing has also begun to gradually enter the lives of the masses. Indoor surfing intelligent technology has also begun to gradually develop. In order to form more targeted guidance to the trainees, it has always been a problem to collect the actions of the trainees in surfing in multiple dimensions.
[0003] The existing indoor surfing action collection tool has the problems of simple structure, single data type, small data volume and low collection frequency. The collected data often cannot accurately restore the on-site environment of the trainees, and cannot analyze the actions of the trainees from multiple directions and in three dimensions. UTILITY MODEL CONTENT
[0004] The main problem solved by the utility model is how to solve the problem of single data type and small data volume of the existing surfing action collection tool, and a indoor surfing action collection device is provided.
[0005] To solve the above technical problems, the technical scheme adopted is:
[0006] An indoor surfing action collection device, the surfboard is provided with three layers, the upper surface layer, the middle layer and the lower surface layer;
[0007] The upper surface layer is a foot pedal layer; the lower surface layer is a water surface contact layer, and a detection column matrix for detecting the flow direction of water is arranged on the lower surface layer, each detection column in the detection column matrix is uniformly distributed on the water contact surface of the lower surface layer, and is used for collecting the flow direction and flow speed of seawater;
[0008] The middle layer is provided with a pressure sensor matrix, each sensor in the pressure sensor matrix is uniformly distributed on one side of the middle layer facing the upper surface layer, and is used for collecting the pressure of the upper surface layer;
[0009] The middle layer is also provided with a control panel, which is used for saving each pressure value collected by the pressure sensor matrix and the pressure value converted from the flow direction and speed value collected by the detection column matrix;
[0010] The upper surface layer, the middle layer and the lower surface layer are clamped together.
[0011] Further, the middle layer is also provided with a control warehouse for placing the control panel.
[0012] Further, the control board is provided with an analog signal acquisition circuit for acquiring the pressure value analog of each pressure sensor in the pressure sensor matrix and the analog of the water flow direction and speed value detected by each detection column in the lower surface layer after being converted into pressure value;
[0013] Further, the control board is further provided with a single-chip microcomputer processing unit for collecting the pressure analog value transmitted by the pressure sensor matrix and the analog of the water flow direction and speed value detected by each detection column in the lower surface layer after being converted into pressure value, and then converting the analog into digital value through an analog-digital converter, storing the digital value into the memory of the control board and outputting.
[0014] Further, each pressure sensor in the pressure sensor matrix is a thin film pressure sensor; and a wiring groove is further provided on the middle layer for wiring the collection line of the pressure sensor.
[0015] Further, the detection column is a cylinder, the bottom of the cylinder is provided with a hinge for hinging the cylinder to the lower surface layer, and three springs are further provided, the top end of each spring is fixed to the top end of the cylinder, the bottom end of each spring is uniformly distributed around the cylinder and is fixed to a connecting device through a spring hole penetrating the lower surface layer, the connecting device is located on the water-back side of the lower surface layer, and a thin film pressure sensor is installed at the connection between the lower surface layer and the connecting device for converting the spring force into pressure of the thin film pressure sensor.
[0016] Further, the connecting device is a hat-shaped protrusion, the bottom periphery of the hat-shaped protrusion is invertedly buckled on the water-back side of the lower surface layer, the thin film pressure sensor is arranged on the water-back side of the lower surface layer at the bottom of the inverted buckling of the hat-shaped protrusion, and a hook for hanging the spring is arranged on the top of the hat-shaped protrusion, and a hole for the spring to pass through is arranged on the thin film pressure sensor.
[0017] Further, a wiring groove is provided on the water-back side of the lower surface layer for wiring the thin film pressure sensor on the detection column for converting the spring force into thin film pressure, and the pressure value of the thin film pressure sensor of the detection column matrix is transmitted to the control board.
[0018] Further, the control board further comprises a wifi data transmission unit for transmitting the data in the memory to an external computer.
[0019] Further, the hinge is a spherical ball, and the lower surface layer is provided with a mounting hole for mounting the detection column, and the spherical ball penetrates the mounting hole to clamp the detection column to the lower surface layer.
[0020] Further, a binocular camera for collecting the action of the surfer is further included.
[0021] By means of the technical scheme, the utility model has the advantages of the following:
[0022] The indoor surfing action collecting device provided by the utility model collects the foot pressure of the surfer through the pressure sensor matrix distributed in the middle layer, converts the direction and speed value of the water flow into the pressure value of the thin film pressure sensor through the probe column matrix and the spring around the probe column, collects the pressure value to simulate the water flow condition of the surfboard, and thus can well collect the multi-dimensional training data of the surfer and guide the surfer. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the specific embodiments of the utility model or the technical scheme in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.
[0024] Figure 1 It is a structure schematic view of the surfing collecting device of the utility model
[0025] Figure 2 It is a structure schematic view of the middle layer
[0026] Figure 3 It is a structure schematic view of the probe column
[0027] Figure 4 It is a structure schematic view of the spring upper surface connecting device
[0028] Figure 5 It is a structure schematic view of the lower surface layer DETAILED DESCRIPTION
[0029] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, and obviously, the described embodiments are some embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0030] Figures 1 to 5 A specific embodiment of an indoor surfing action collecting device is shown, which comprises a surfboard, the surfboard is provided with three layers, an upper surface layer, a middle layer and a lower surface layer
[0031] The upper surface layer is a stepping layer; the lower surface layer is a water surface contact layer, and a detection column matrix for detecting the water flow direction is arranged on the lower surface, each detection column in the detection column matrix is uniformly distributed on the water contact surface of the lower surface layer, and is used for collecting the flow direction and flow speed of the seawater below.
[0032] The middle layer is provided with a pressure sensor matrix, each sensor in the pressure sensor matrix is uniformly distributed on the side of the middle layer facing the upper surface layer, and is used for collecting the pressure of the upper surface layer; the middle layer is also provided with a control board, which is used for saving the collected pressure values of each pressure sensor in the pressure sensor matrix and the pressure values converted from the water flow direction and speed values collected by the detection column matrix, and the upper surface layer, the middle layer and the lower surface layer are clamped together. In this embodiment, each pressure sensor in the pressure sensor matrix is a thin film pressure sensor; a wiring groove is also arranged on the middle layer, which is used for wiring the collection lines of the pressure sensors. The pressure sensor collection line is used for signal transmission between the pressure sensor and the control board.
[0033] In this embodiment, as shown in Figure 2 The control board is arranged on the control board, and an analog signal collection circuit is arranged on the control board, which is used for collecting the pressure value analog of each pressure sensor in the pressure sensor matrix and the analog of the pressure value converted from the water flow direction and speed values detected by each detection column of the lower surface layer; a single-chip microcomputer processing unit is also arranged on the control board, which is used for collecting the pressure analog values transmitted by the pressure sensor matrix and the analog of the pressure value converted from the water flow direction and speed values detected by each detection column of the lower surface layer, and then storing the digital values obtained after the analog-to-digital conversion into the memory of the control board and outputting. The memory is a built-in flash memory, which can prevent data loss during power failure. In addition, the control board also includes a wifi data transmission unit, which is used for transmitting the data in the memory to an external computer. In this embodiment, the single-chip microcomputer processing unit is an STM2 single-chip microcomputer processing unit, the analog-to-digital converter adopts a conventional AD7980 type analog-to-digital converter.
[0034] In this embodiment, as shown in Figure 3As shown, the probe column is a cylinder, the bottom of the cylinder is provided with a hinge to hinge the cylinder to the lower surface layer, and further comprises three springs, the top ends of the three springs are fixed to the top end of the cylinder, the bottom ends of the three springs are evenly distributed around the cylinder and are fixed to a spring connecting device after penetrating the spring holes opened in the lower surface layer, the connecting device is located on the side of the lower surface layer away from the water, a thin film pressure sensor is installed at the connection between the lower surface layer and the connecting device, which is used to convert the spring force into the pressure of the thin film pressure sensor to facilitate collection. In this embodiment, the spring force comes from the movement of the probe column under the action of the flow direction and flow speed of the sea water, which drives the movement of the spring to generate the spring force, that is, the flow direction and flow speed of the water felt by the probe column are converted into the spring force, and the spring force is converted into the pressure of the thin film pressure sensor through the thin film pressure sensor. The hinge is a spherical ball, which is located at the bottom of the cylinder, and the lower surface layer is provided with a mounting hole for mounting the probe column, and the spherical ball passes through the mounting hole to clamp the probe column on the lower surface layer and also allows the probe column to rotate on the lower surface layer.
[0035] As shown in the embodiment, Figure 4 and Figure 5 As shown, the connecting device is a hat-shaped protrusion, the bottom periphery of the hat-shaped protrusion is inverted on the side of the lower surface layer away from the water, and the thin film pressure sensor is arranged on the side of the lower surface layer away from the water and located at the bottom of the inverted hat-shaped protrusion, the top of the hat-shaped protrusion is provided with a hook for hanging the spring, and the spring passes through the hole in the thin film pressure sensor, and the spring is hung on the hook at the top of the hat-shaped protrusion. Under the action of the spring tension, the hat-shaped protrusion moves up and down, and the up and down movement of the hat-shaped protrusion acts on the thin film pressure sensor to make the thin film pressure sensor feel the pressure to collect. The material of the hat-shaped protrusion is selected to have a slight movement under the spring tension, and in this embodiment, a hard plastic is selected.
[0036] As shown in the embodiment, Figure 5 The backwater side of the lower surface layer is provided with a wiring groove for wiring the thin film pressure sensor on the probe column for converting the spring force into the thin film pressure, and the pressure values of the thin film pressure sensors of the probe column matrix are transmitted to the control board.
[0037] In this embodiment, the collection device further comprises a binocular camera, which is used to collect the actions of the surfer and transmit to the image recognition system. The image recognition system is an existing image action recognition system, such as a feature extraction image collection method.
[0038] The embodiment can not only capture the strength of the surfer's foot pedal, but also obtain the pressure distribution in the pressure sensor matrix through the numerical value of the pressure sensor, and further calculate the human foot force, the center of gravity position and the force radiation situation for recording through the pressure sensor matrix arranged in the middle layer.
[0039] Through the detection column matrix of the lower surface layer, three springs on the detection column and the film pressure sensor installed at the bottom of the spring are connected, the flow direction and flow rate of the water flow can be quantitatively analyzed and restored according to the pressure data collected by the film pressure sensor, and more scientific and accurate analysis and guidance for the surfer can be made.
[0040] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: the technical solutions recorded in the foregoing embodiments can still be modified, or part or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. An indoor surfing action capture apparatus comprising a surfboard, characterised in that, The surfboard is provided with three layers, the upper surface layer, the middle layer and the lower surface layer; The upper surface layer is the foot layer; the lower surface layer is the water surface contact layer, and a detection column matrix for detecting the water flow direction is arranged on the lower surface layer, each detection column in the detection column matrix is uniformly distributed on the water contact surface of the lower surface layer, and is used for collecting the flow direction and flow speed of seawater; The middle layer is provided with a pressure sensor matrix, each sensor in the pressure sensor matrix is uniformly distributed on the side of the middle layer facing the upper surface layer, and is used for collecting the pressure of the upper surface layer; The middle layer is further provided with a control board, which is used for saving the pressure values collected by the pressure sensor matrix and the pressure values converted from the water flow direction and speed values collected by the detection column matrix; The upper surface layer, the middle layer and the lower surface layer are clamped together.
2. An indoor surfing motion capture apparatus as claimed in claim 1, wherein, The middle layer is further provided with a control cavity for placing the control board.
3. An indoor surfing motion capture apparatus as claimed in claim 2, wherein, An analog signal acquisition circuit is arranged on the control board, which is used for collecting the pressure value analog of each pressure sensor in the pressure sensor matrix and the analog of the pressure value converted from the water flow direction and speed values detected by each detection column of the lower surface layer; A single-chip microcomputer processing unit is further arranged on the control board, which is used for collecting the pressure analog values transmitted by the pressure sensor matrix and the analog of the pressure value converted from the water flow direction and speed values detected by each detection column of the lower surface layer, converting the analog values into digital values through an analog-digital converter, storing the digital values into the memory of the control board and then outputting the digital values.
4. An indoor surfing motion capture apparatus as claimed in claim 3, wherein, Each pressure sensor in the pressure sensor matrix is a thin film pressure sensor; a wiring groove is further arranged on the middle layer, which is used for wiring the collection lines of the pressure sensors.
5. An indoor surfing motion capture apparatus as claimed in claim 4, wherein, The detection column is a cylinder, a hinge part is arranged at the bottom of the cylinder to hinge the cylinder to the lower surface layer, three springs are further arranged, the top ends of the three springs are fixed to the top end of the cylinder, the bottom ends of the three springs are uniformly distributed around the cylinder and are respectively fixed to a connecting device through spring holes penetrating the lower surface layer, the connecting device is located on the side of the lower surface layer away from the water, and a thin film pressure sensor is arranged at the connection between the lower surface layer and the connecting device, which is used for converting the elastic force of the spring into the pressure of the thin film pressure sensor.
6. The indoor surfing action collecting device according to claim 5, wherein The connecting device is a hat-shaped protrusion, the bottom periphery of the hat-shaped protrusion is invertedly buckled on the side of the lower surface layer away from the water, the thin film pressure sensor is arranged on the side of the lower surface layer away from the water and located at the bottom of the inverted buckling of the hat-shaped protrusion, the top of the hat-shaped protrusion is provided with a hook for hanging the spring, and a hole is arranged on the thin film pressure sensor for the spring to pass through.
7. An indoor surfing motion capture apparatus as claimed in claim 6, wherein A wiring groove is arranged on the side of the lower surface layer away from the water, which is used for wiring the thin film pressure sensor on the detection column for converting the elastic force of the spring into the pressure of the thin film pressure sensor and transmitting the pressure values of the thin film pressure sensors in the detection column matrix to the control board.
8. The indoor surfing action collecting device according to claim 7, wherein The control panel further comprises a wifi data transmission unit for transmitting data in the memory to an external computer.
9. An indoor surfing motion capture apparatus as in claim 7, wherein, The hinge is a spherical ball, and the lower surface layer is provided with a mounting hole for mounting the detection column, and the spherical ball passes through the mounting hole to make the detection column clamped on the lower surface layer.
10. An indoor surfing motion capture apparatus as claimed in claim 9, wherein, It also comprises a binocular camera for collecting the actions of the surfer.