Swimming Pool Robot Speed Detection via Rotating Member
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Solution Overview
Problem
Existing swimming pool cleaning robots, both propeller-driven and wheeled, face challenges in accurately acquiring their own movement state information, which hinders effective cleaning coverage due to inability to directly detect their movement speed and trajectory.
Innovation Solution
A swimming pool cleaning robot equipped with a rotating member and a rotating speed detection assembly, connected to a control module, allows for the detection of rotating speed, enabling accurate acquisition of moving speed and control of movement trajectory, featuring a simple, reliable structure with low manufacturing costs and improved maintenance convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a propeller-driven underwater cleaning robot is used, then cleaning coverage can be improved, but the robot cannot directly acquire its own movement state information
Solution Approach 1:
The patent introduces a rotating member as an intermediary element that connects water flow to the detection system. The rotating member converts water flow information into rotational motion, which can then be detected by the rotating speed detection assembly. This intermediary mechanism enables indirect measurement of movement state information without requiring direct sensors on the propeller or propulsion system.
2Ease of operation
If a wheeled underwater cleaning robot is used, then movement control is simplified, but the robot slips and cannot acquire accurate movement state information
Solution Approach 1:
The patent replaces direct mechanical measurement systems with a fluid-based detection system. Instead of using wheels with encoders or direct propulsion system sensors, the system uses water flow to rotate a member whose rotation is detected by a rotating speed detection assembly. This substitution eliminates the slipping problem associated with wheeled robots while maintaining ease of movement control through fluid dynamic interaction.
3Measurement precision
If direct movement state detection sensors are installed on the robot, then movement speed can be detected accurately, but the system complexity and manufacturing cost increase
Solution Approach 1:
The rotating member serves dual functions: it acts as both a propulsion element (paddle wheel or propeller) and a detection transducer. The same component that moves the robot also carries the detection feature (magnet or reflective mark) that enables speed measurement. This self-service approach eliminates the need for separate, complex detection sensors mounted on the robot body, thereby reducing system complexity while maintaining detection accuracy.
4Measurement precision
If complex detection systems are used to acquire movement state information, then detection accuracy improves, but manufacturing cost and maintenance difficulty increase
Solution Approach 1:
The rotating member with its detection features (magnets, reflective marks, or colored patterns) uses simple, inexpensive materials that are easy to manufacture and replace. The detection assembly itself is kept minimal and robust, using basic sensors like Hall effect sensors or optical detectors that are cost-effective and straightforward to maintain. This approach prioritizes affordability and ease of maintenance over high-cost, complex sensor systems.
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 enables precise control of the swimming pool cleaning robot's movement trajectory, enhances detection accuracy, and improves working stability and service life by accurately determining moving speed and detecting sudden stops or reversals, while maintaining a low-cost and easy-to-maintain system.
Implementation Method 1
a rotating speed detection assembly used for detecting a rotating speed of the rotating member
Data Source
AI summary
The present disclosure discloses a swimming pool cleaning robot with a movement state detection function, including a main body on which a control module is arranged; a rotating member is rotatably arranged outside the main body; a water fender is also arranged outside the main body; part of the rotating member is located in the water fender; the swimming pool cleaning robot further includes a rotating speed detection assembly used for detecting a rotating speed of the rotating member; and the rotating speed detection assembly is electrically connected to the control module. The moving speed of the swimming pool cleaning robot can be accurately acquired by detecting the rotating member's rotating speed; a movement trajectory of the swimming pool cleaning robot can be controlled by controlling the swimming pool cleaning robot's moving direction; and the entire detection system has a simple and reliable structure and is convenient to maintain.