Floor Mopping Robot Water Spray Staging for Extended Coverage
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Solution Overview
Problem
Existing floor mopping robots face inefficiencies in water spray control, leading to insufficient cleaning at the beginning of the task and insufficient water for completing all cleaning tasks due to depleted water tanks.
Innovation Solution
A water spray control method and apparatus for floor mopping robots that adjust the water spray amount based on pre-set thresholds related to the out-of-station distance, cleaned area, and moved distance, switching between a first pre-set amount for initial stages and a second, reduced pre-set amount for subsequent stages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a steady degree of wetness is maintained for the mop or floor throughout the cleaning task, then the water spray system operates consistently, but the cleaning effect at the beginning is insufficient and water may be depleted before completing all cleaning tasks
Solution Approach 1:
The water spray system dynamically adjusts the spray amount based on the cleaning stage. In the first stage (when out-of-station distance is less than the first threshold), the system sprays a first amount of water that is greater than the second amount sprayed in the second stage. This dynamic adjustment ensures sufficient water for initial cleaning while conserving water for later stages, resolving the contradiction between maintaining reliable cleaning effect and preserving water quantity.
2Reliability
If a larger amount of water is sprayed at the beginning of cleaning, then the cleaning effect is improved, but the water tank may be depleted before completing all cleaning tasks
Solution Approach 1:
The system implements dynamic water spray control based on the cleaning stage. The controller determines whether the robot is in the first stage (out-of-station distance < first threshold) or second stage (out-of-station distance ≥ first threshold) and adjusts the spray amount accordingly. This ensures high water delivery at the beginning for effective cleaning while reducing spray in later stages to extend operational time and prevent water depletion.
Solution Approach 2:
The system performs preliminary action by spraying a larger amount of water in the first stage before transitioning to the second stage. This preliminary high-water-spray phase ensures that the mop and floor are adequately wetted at the beginning of cleaning, establishing effective cleaning action before water conservation mode is activated.
3Quantity of substance
If a smaller amount of water is sprayed throughout the cleaning task, then water conservation is improved, but the cleaning effect at the beginning becomes insufficient
Solution Approach 1:
The water spray system uses dynamic control to adjust spray amounts based on the cleaning stage. The controller monitors the out-of-station distance and switches between first stage (high spray) and second stage (low spray) modes. This resolves the contradiction by ensuring sufficient water spray at the beginning when cleaning effect is critical, while conserving water during later stages when the mop is already wet.
4Reliability
If the water spray amount is increased to ensure sufficient cleaning, then the cleaning effectiveness is improved, but the water tank depletes faster reducing operational time
Solution Approach 1:
The system dynamically adjusts water spray amount based on the cleaning stage determined by out-of-station distance. In the first stage, a larger first amount of water is sprayed to ensure effective cleaning initiation. In the second stage, a smaller second amount is sprayed to conserve water. This dynamic strategy ensures cleaning effectiveness when needed while extending operational time and total cleaning area coverage.
Solution Approach 2:
The system performs preliminary high-water-spray action in the first stage to adequately wet the mop and floor at the beginning of cleaning. This preliminary action ensures cleaning effectiveness is established early, after which water spray is reduced in the second stage to preserve water for extended operational time and larger cleaning area coverage.
Data Source
AI summary
The present disclosure provides a floor mopping robot, a water spray control method and apparatus for the floor mopping robot, and a non-transitory computer-readable storage medium. The water spray control method includes controlling, in a first stage, a water spray system of the floor mopping robot to spray a first pre-set amount of water; and controlling, in a second stage after the first stage, the water spray system to spray a second pre-set amount of water each time. Each of the first stage and the second stage is related to an out-of-station distance, an already cleaned area, or an already moved distance of the floor mopping robot. The out-of-station distance is a distance that the floor mopping robot has moved away from a charging station since start-up. The second pre-set amount of water is less than the first pre-set amount of water.