Floor Cleaning Machine Angle Detection for Negative Pressure Control
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Solution Overview
Problem
Existing floor cleaning devices face poor cleaning effectiveness when cleaning low areas due to the need to power off the negative pressure source to prevent water ingress, which compromises cleaning efficiency.
Innovation Solution
A smart floor cleaning device equipped with an angle detection system using magnetic components and Hall sensors to adjust the output power of the negative pressure source based on the rotation angles of the body, allowing continuous operation without powering off the source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the negative pressure source is powered off when cleaning low areas, then water ingress into the negative pressure source is prevented, but cleaning effectiveness deteriorates
Solution Approach 1:
The patent applies dynamics by making the negative pressure source's operation state dynamic rather than static. The negative pressure source switches between on and off states based on real-time detection of the body's rotation angle by the angle detection device. When the body is in a horizontal position (normal cleaning), the negative pressure source operates normally. When the body tilts beyond a threshold angle (indicating low area cleaning), the negative pressure source is controlled to remain on to maintain suction capability while preventing water ingress through intelligent state switching.
Solution Approach 2:
The patent implements feedback control through the angle detection device that continuously monitors the body's rotation angle and provides feedback to the processor. The processor uses this feedback information to intelligently control the negative pressure source's operation state. This closed-loop feedback system enables the negative pressure source to adapt its state based on real-time operational conditions, resolving the contradiction between maintaining suction capability and preventing water ingress during low area cleaning.
2Productivity
If the negative pressure source remains on during low area cleaning, then cleaning effectiveness is improved, but water may ingress into the negative pressure source
Solution Approach 1:
The feedback control mechanism monitors the body's rotation angle in real-time and adjusts the negative pressure source's operation accordingly. When the angle detection device detects that the body is in a horizontal position, the processor maintains the negative pressure source in the on state for effective cleaning. When the body tilts beyond the threshold angle during low area cleaning, the feedback system controls the negative pressure source to remain on, maintaining suction capability while the system geometry prevents water ingress.
Solution Approach 2:
The system dynamically adjusts the negative pressure source's operation state based on real-time detection of body orientation. The negative pressure source transitions between on and off states according to the detected rotation angle, enabling the system to optimize cleaning effectiveness while preventing water ingress through intelligent state switching rather than static operation.
3Productivity
If an angle detection device is added to control negative pressure source power, then cleaning effectiveness in low areas is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical control mechanisms with electronic sensing and control. Instead of using mechanical linkages or manual switches to control the negative pressure source, the system uses an angle detection device (electronic sensor) to detect body rotation angle and an electronic control system (processor) to automatically adjust the negative pressure source's power state. This substitution of mechanical systems with electronic systems achieves the desired cleaning effectiveness while keeping the added complexity manageable through integration.
Solution Approach 2:
The system implements self-service control where the angle detection device automatically monitors body orientation and the processor autonomously adjusts the negative pressure source's power state without user intervention. The system serves itself by using its own sensing capabilities to make real-time control decisions, eliminating the need for external control mechanisms or manual operation, thereby improving cleaning effectiveness with minimal added complexity.
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 enhances cleaning effectiveness by dynamically adjusting the negative pressure source power according to rotation angles, ensuring efficient sewage collection in low areas without water ingress into the device.
Implementation Method 1
the angle detection device includes a magnetic component and a Hall sensor... the processor is electrically connected to the Hall sensor and configured to obtain the rotation angle of the body around at least one of the first axis and the second axis based on a signal intensity from the Hall sensor
Data Source
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AI summary
The present application provides a smart floor cleaning device (1000) and a control method thereof. The smart floor cleaning device (1000) includes a body (10), a chassis (20), a processor, a negative pressure source, and a sewage tank on the body (10). The negative pressure source is connected to the sewage tank and applies a negative pressure source to draw sewage during cleaning into the sewage tank. The smart floor cleaning device (1000) further includes an angle detection device (30) on the body (10) and/or the chassis (20). The processor is electrically connected to the angle detection device (30) and obtains a rotation angle of the body (10) around the first axis and/or the second axis based on a detection signal from the angle detection device (30). The first axis and second axis are perpendicular to each other. The processor is electrically connected to the negative pressure source and controls the output power of the negative pressure source based on the rotation angle.