Input Device Detection System Positioning Accuracy
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Solution Overview
Problem
Conventional input device detection systems, such as those using optical or laser sensing modules, often produce erroneous results due to inaccurate positioning of the input device, which can lead to unreliable detection outcomes.
Innovation Solution
A detection system comprising a foundation, a cover plate, a trajectory detection plate, and a control device, where retractable rods and pressure pumps are used to precisely position the input device and align the optical sensing module with a detection hole, and a trajectory detection plate is moved to simulate the input device's movement, generating a trajectory signal for accurate detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual positioning is used to place the input device on the fixture, then the operation is simple and quick, but the positioning accuracy is poor leading to erroneous detection results
Solution Approach 1:
The system uses automatic positioning mechanisms where the input device itself interacts with positioning structures (such as positioning holes and positioning protrusions) to achieve accurate alignment without requiring manual adjustment. The device self-aligns with the fixture through complementary geometric features.
Solution Approach 2:
The patent replaces manual mechanical positioning with an automated positioning system that uses mechanical structures (positioning holes, protrusions, retractable rods) to automatically align and secure the input device in the correct position, eliminating human error in positioning.
2Reliability
If the input device is not accurately positioned, then the detection process is quick and flexible, but the detection reliability is poor
Solution Approach 1:
The system performs preliminary positioning actions before detection begins. The input device is pre-aligned with positioning holes and secured by positioning protrusions, and the optical module is pre-positioned using retractable rods, ensuring accurate positioning is established before the actual detection process starts.
Solution Approach 2:
The system incorporates feedback mechanisms where the positioning status is verified through detection signals. The control unit receives feedback from the positioning structures to confirm proper alignment, and can adjust or repeat positioning if the feedback indicates misalignment, thereby ensuring detection reliability.
3Measurement precision
If manual placement is used without positioning structures, then the device structure is simple, but the detection accuracy is poor
Solution Approach 1:
The positioning system is segmented into distinct functional components: positioning holes in the fixture, positioning protrusions on the input device, and separate adjustment mechanisms. This segmentation allows each component to be manufactured independently using standard processes while achieving high detection accuracy through their coordinated interaction.
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 system significantly increases the accuracy and reliability of input device detection by ensuring proper alignment and simulating the input device's movement, thereby enhancing the precision of the detection results.
Implementation Method 1
The optical sensing module emits a light beam, and the light beam is transmitted through the detection hole and projected to the trajectory detection plate
Implementation Method 2
When the trajectory detection plate is moved relative to the foundation and the light beam is reflected to the optical sensing module by the trajectory detection plate, the input device generates a trajectory signal
Data Source
AI summary
An input device detection system includes a foundation, a cover plate and a trajectory detection plate. The foundation includes a base plate and plural first retractable rods. The base plate has a top surface, a bottom surface and a detection hole. The input device is pushed by the plural first retractable rods along a horizontal direction. The input device is pushed by plural second retractable rods of the cover plate along a vertical direction. The trajectory detection plate is located under the base plate. An optical sensing module of the input device emits a light beam. The light beam is transmitted through the detection hole and projected to the trajectory detection plate. When the trajectory detection plate is moved relative to the foundation and the light beam is reflected to the optical sensing module by the trajectory detection plate, a trajectory signal is generated.