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US 12,565,275 B2Granted
Bicycle seat cushion sensing system
AssigneeNational Taiwan Normal University
InventorsTzyy-Yuang Shiang, Ya-Ju Chang, Tsang-Hai Huang, Chia-Hsiang Chen, Yin-Shin Lee
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Abstract
A bicycle seat cushion sensing system includes a seat cushion body. Different sensing devices can be installed in different areas of the seat cushion body to detect the vertical force data of different areas, and the vertical force data of different areas are used to calculate a real-time force center position value, and then the real-time force center position value is converted into a trunk angle value to determine the riding posture of the rider.
Claims10
A bicycle seat cushion sensing system, comprising:
- a seat cushion body, having a front-end area, a left-end area and a right-end area on a surface of the seat cushion body, wherein the front-end area is located at a front end of the left-end area and the right-end area, the left-end area is disposed at a left side of the seat cushion body, and the right-end area is disposed at a right side of the seat cushion body;
- a front sensing unit, comprising at least one front sensing device, wherein the front sensing device is disposed in the front-end area to detect a front-end vertical force data of the front-end area;
- a back sensing unit, comprising at least one first back sensing device and at least one second back sensing device, wherein the first back sensing device is disposed in the left-end area to detect a left-end vertical force data of the left-end area, the second back sensing device is disposed in the right-end area to detect a right-end vertical force data of the right-end area, and position of the second back sensing device corresponds to position of the first back sensing device;
- a circuit board, disposed on the seat cushion body, wherein the circuit board is electrically connected to the front sensing device, the first back sensing device and the second back sensing device, the circuit board comprises at least one microprocessor and a transmission unit, the circuit board receives the front-end vertical force data, the left-end vertical force data and the right-end vertical force data, and the microprocessor stores a sensing device distance data, calculates a real-time force center position value through the front-end vertical force data, the left-end vertical force data, the right-end vertical force data and the sensing device distance data, and transmits the real-time force center position value through the transmission unit;
- and
- an electronic device, having a riding application, wherein the electronic device is connected to the circuit board to receive the real-time force center position value transmitted by the circuit board and convert the real-time force center position value into a trunk angle value;
- wherein the riding application is configured to have an upright posture angle value, an upright posture force center position value, a prone posture angle value, and a prone posture force center position value, wherein the riding application subtracts the prone posture angle value from the upright posture angle value to obtain an angle difference, subtracts the prone posture force center position value from the upright posture force center position value to obtain a predetermined force center position difference value, subtracts the real-time force center position value from the upright posture force center position value to obtain a real-time force center position difference value, divides the real-time force center position difference value by the predetermined force center position difference value to obtain a force center position ratio, multiplies the angle difference value by the force center position ratio to obtain an angle change value, and subtracts the angle change value from the upright posture angle value to obtain the trunk angle value.
4 more elements
A bicycle seat cushion sensing system, comprising:
- a seat cushion body, having a front-end area, a left-end area and a right-end area on a surface of the seat cushion body, wherein the front-end area is located at a front end of the left-end area and the right-end area, the left-end area is disposed at a left side of the seat cushion body, and the right-end area is disposed at a right side of the seat cushion body;
- a front sensing unit, comprising at least one front sensing device, wherein the front sensing device is disposed in the front-end area to detect a front-end vertical force data of the front-end area;
- a back sensing unit, comprising at least one first back sensing device and at least one second back sensing device, wherein the first back sensing device is disposed in the left-end area to detect a left-end vertical force data of the left-end area, the second back sensing device is disposed in the right-end area to detect a right-end vertical force data of the right-end area, and position of the second back sensing device corresponds to position of the first back sensing device;
- a circuit board, disposed on the seat cushion body, wherein the circuit board is electrically connected to the front sensing device, the first back sensing device, and the second back sensing device, the circuit board comprises at least one microprocessor and a transmission unit, the circuit board receives the front-end vertical force data, the left-end vertical force data and the right-end vertical force data, and transmits the front-end vertical force data, the left-end vertical force data, and the right-end vertical force data through the transmission unit;
- and
- an electronic device, having a riding application, wherein the electronic device is connected to the circuit board to receive the front-end vertical force data, the left-end vertical force data, and the right-end vertical force data, the riding application stores a sensing device distance data, calculates real-time force center position value through the front-end vertical force data, the left-end vertical force data, the right-end vertical force data and the sensing device distance data, and convert the real-time force center position value into a trunk angle value;
- wherein the riding application is configured to have an upright posture angle value, an upright posture force center position value, a prone posture angle value, and a prone posture force center position value, wherein the riding application subtracts the prone posture angle value from the upright posture angle value to obtain an angle difference, subtracts the prone posture force center position value from the upright posture force center position value to obtain a predetermined force center position difference value, subtracts the real-time force center position value from the upright posture force center position value to obtain a real-time force center position difference value, divides the real-time force center position difference value by the predetermined force center position difference value to obtain a force center position ratio, multiplies the angle difference value by the force center position ratio to obtain an angle change value, and subtracts the angle change value from the upright posture angle value to obtain the trunk angle value.
4 more elements
Dependencies are inferred from the claim text.