Window-Wiping Robot Pin Engagement Sensing for Accurate Rotation
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Solution Overview
Problem
Existing self-moving window-wiping robots face issues with accurately engaging and disengaging their base body and outer frame during rotation, leading to inefficient operation due to tiny deviations, which prevents normal functioning.
Innovation Solution
A self-moving device equipped with a detection mechanism, such as an optical coupling sensor, a Hall sensor, or an electromagnet, that controls the engagement of a fixing pin with a pin slot, allowing the base body to rotate freely when disengaged and fix when engaged, ensuring accurate posture adjustment for effective walking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an engagement mechanism is employed to facilitate rotation in situ, then the window-wiping robot can rotate at side or corner of the window, but the engagement mechanism is unable to be engaged in place due to a tiny deviation during rotation
Solution Approach 1:
The patent employs a detection mechanism that detects whether the pin head is engaged within the pin slot to provide feedback to the control unit. This feedback system enables the robot to monitor its engagement state and make necessary adjustments, ensuring accurate positioning and reliable engagement despite minor deviations during rotation.
Solution Approach 2:
The patent replaces a purely mechanical engagement system with an integrated system that combines mechanical components (pin head and pin slot) with optical detection (detection mechanism) and electronic control (control unit). This substitution allows for precise detection and control of the engagement state, overcoming the limitations of mechanical tolerance alone.
2Ease of operation
If the base body is rotatably connected to the outer frame, then the base body can rotate with respect to the outer frame, but the robot cannot work normally because the engagement mechanism is unable to be engaged in place
Solution Approach 1:
The detection mechanism provides real-time feedback on the engagement state, allowing the control unit to adjust the rotation and positioning of the base body relative to the outer frame. This feedback loop ensures that the pin head is accurately positioned within the pin slot, achieving both rotation freedom and precise engagement positioning.
Solution Approach 2:
The detection mechanism is pre-positioned to detect the engagement state before the robot proceeds with its operation. This preliminary detection ensures that the engagement is properly established before the robot begins its window-wiping task, preventing operational failures due to improper engagement.
3Measurement precision
If a detection mechanism is added to detect the engagement state, then the robot can accurately detect and adjust posture, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical sensing systems with an optical detection mechanism that uses light transmission to detect the engagement state. This substitution simplifies the overall system by using non-contact optical sensing rather than complex mechanical switches or sensors, reducing mechanical complexity while maintaining high measurement precision.
Solution Approach 2:
The detection mechanism serves multiple functions: it detects whether the pin head is engaged within the pin slot, provides feedback to the control unit, and enables automatic posture adjustment. This multi-functionality reduces the need for separate detection and control components, thereby reducing overall device complexity while achieving precise measurement.
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 device accurately detects the engagement state and adjusts the posture to ensure the base body and outer frame walk together in an engaged state, enhancing operational efficiency and reliability.
Implementation Method 1
the detection mechanism is an optical coupling sensor provided on the base body
Data Source
AI summary
The self-moving device comprises an outer frame (100), and a base body (200) rotatably connected on the outer frame (100). The base body (200) includes a control unit and a walking unit. A fixing pin (300) is connected to the base body (200). One end of the fixing pin (300) is movably fixed to the base body (200), and the other end is a pin head (320). When the pin head (320) is engaged within the pin slot (110), the base body (200) is connected to and engaged with the outer frame (100). When the pin head (320) is separated from the pin slot (110), the base body (200) rotates with respect to the outer frame (100). When the detection mechanism detects that the pin head (320) is engaged and fixed within the pin slot (110), the control unit controls the walking unit.