Touch Pen Fluid Sensing for Inclined Angle Detection
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Solution Overview
Problem
Touch pens require expensive pressure sensors or Bluetooth modules to detect inclined angles, leading to higher costs and power consumption.
Innovation Solution
A touch pen design that includes a pen body, a first controller, and a touch sensing circuit with an accommodation part for fluid, which outputs a control signal based on position information when the pen is inclined, replacing the need for pressure sensors and Bluetooth modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pressure sensors or Bluetooth modules are used to detect inclined angles, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces mechanical pressure sensors and Bluetooth modules with a fluid-based sensing system. The fluid in the accommodation part responds to gravitational force when the pen is inclined, enabling angle detection through fluid position changes rather than mechanical sensors, thus simplifying the device structure while maintaining detection precision
Solution Approach 2:
The patent utilizes hydraulic principles by employing a fluid-filled accommodation part that moves or changes position in response to gravitational force when the pen is inclined. This fluid-based mechanism provides inclined angle detection without requiring complex mechanical sensors or wireless communication modules
2Measurement precision
If pressure sensors or Bluetooth modules are used to detect inclined angles, then measurement precision is improved, but power consumption increases
Solution Approach 1:
The patent replaces active electronic components (Bluetooth modules and powered sensors) with a passive fluid-based sensing mechanism. The fluid naturally responds to gravitational inclination without requiring power, thereby maintaining measurement precision while dramatically reducing power consumption
Solution Approach 2:
The fluid in the accommodation part serves as a self-powered sensing element that automatically responds to inclined angle changes through gravitational force, eliminating the need for external power supply to the sensing mechanism while maintaining detection precision
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution reduces costs and power consumption while maintaining a simpler structure and faster response speed, allowing for effective control functions through changes in the pen's inclined posture.
Implementation Method 1
the touch sensing circuit is configured to contact the fluid in the accommodation part in a case that the pen body is in an inclined posture
Data Source
AI summary
A touch pen, a method for controlling the same, a touch control device and a readable storage medium are provided. The touch pen includes: a pen body; and a first controller, a touch sensing circuit and an accommodation part that are arranged on the pen body. The accommodation part is configured to accommodate a fluid, and is coupled to the touch sensing circuit. The touch sensing circuit is configured to contact the fluid in the accommodation part in a case that the pen body is in an inclined posture, detect position information of the fluid in contact with the touch sensing circuit and determine a corresponding reference value based on the position information. The first controller is coupled to the touch sensing circuit, and is configured to output a control signal according to the reference value.