Pet Toilet Roller Control via Multi-Sensor Detection
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Solution Overview
Problem
Existing pet toilets with weighing sensors for waste clearing often misjudge when a pet has finished defecating, leading to unnecessary waste cleaning actions.
Innovation Solution
A pet toilet system that includes a circuit board, a first detection module (such as a distance sensor) to detect a pet's entry and exit, and a second detection module (such as a photoelectric sensor) to prevent unwanted rotation, ensuring accurate waste cleaning only when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only a weighing sensor is used to detect pet defecation, then the device complexity is reduced, but the measurement precision deteriorates causing misjudgment
Solution Approach 1:
The patent combines multiple detection modules (weighing sensor, distance sensor, photoelectric sensor) into an integrated detection system. The weighing sensor detects weight changes, the distance sensor monitors pet proximity to the roller, and the photoelectric sensor detects pet presence at the roller opening. These modules work together to accurately determine when a pet has finished defecating, preventing misjudgment while maintaining reasonable system complexity.
2Reliability
If the roller rotates frequently to clear waste, then the reliability of waste cleaning is improved, but the use of energy increases
Solution Approach 1:
The patent implements a feedback control system where detection modules continuously monitor pet presence and behavior. The controller receives signals from the weighing sensor, distance sensor, and photoelectric sensor to determine the actual defecation status. The roller only rotates when the system confirms waste needs cleaning, avoiding unnecessary rotations and reducing energy consumption while maintaining reliable waste cleaning.
3Productivity
If the roller rotates to discharge waste, then the productivity of waste removal is improved, but the loss of time occurs due to unnecessary rotations
Solution Approach 1:
The feedback control system uses multiple detection modules to accurately determine when waste cleaning is actually needed. The weighing sensor detects weight changes, the distance sensor monitors pet proximity, and the photoelectric sensor confirms pet presence at the opening. This feedback mechanism prevents unnecessary roller rotations by confirming actual defecation events, improving waste removal efficiency while reducing time loss from false activations.
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 effectively reduces misjudgment of pet defecation, minimizes unnecessary roller rotations, and decreases power consumption.
Implementation Method 1
the first detection module is a distance sensor
Implementation Method 2
the second detection module is a photoelectric sensor
Implementation Method 3
the base is provided with a Hall sensor electrically connected to the circuit board; the roller is provided with several magnetic suction pieces used in conjunction with the Hall sensor
Data Source
AI summary
The present disclosure provides a pet toilet and a control method thereof. The pet toilet includes a circuit board, a first detection module, a base, and a roller rotatably arranged on the base. The first detection module is electrically connected to the circuit board to feed back an electrical signal to the circuit board when a pet enters the roller, and the circuit board controls the roller to rotate according to the electrical signal fed back by the first detection module. The present disclosure aims to solve the problem of misjudgment easily caused the fact that only the weighing sensor is used to perform waste clearing in the prior art. The probability of misjudgment on the defecation of a pet is effectively reduced. The number of times of rotation of the roller is reduced; and the power consumption is reduced.