Sump Pump Control Using Basin Rise Rates to Detect Backflow
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Solution Overview
Problem
Current sump pump systems lack the ability to automatically detect impending failures and do not have mechanisms to remedy such failures, leading to potential flooding and significant damage without prior warning.
Innovation Solution
The system detects backflow from an outlet pipe by comparing water rise rates in a sump basin before and after sump pump activation, using sensors to calculate acceleration and implement control measures based on detected backflow conditions, thereby preventing failures and extending the lifespan of the sump pump.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sump pump systems use traditional control mechanisms without backflow detection, then the system structure remains simple, but the reliability of the system decreases due to inability to detect impending failures
Solution Approach 1:
The system performs preliminary detection of backflow conditions by comparing water rise rates before and after pump activation. This preliminary action allows the system to identify potential failures before they occur, enabling proactive maintenance and improving reliability without requiring complex real-time monitoring during pump operation
Solution Approach 2:
The system implements feedback by continuously monitoring water rise rates and comparing pre-pump and post-pump measurements. This feedback mechanism provides information about backflow conditions, allowing the control system to adjust operations and prevent failures, thereby improving reliability through informed decision-making
2Duration of action of stationary object
If sump pump systems implement automatic failure detection and control mechanisms, then the lifespan of the pump is extended, but the device complexity increases
Solution Approach 1:
The system performs self-diagnosis by automatically detecting backflow conditions through rise rate comparisons and triggering appropriate control actions without external intervention. This self-service capability extends pump lifespan by preventing operation under adverse conditions while avoiding the need for complex external monitoring systems
Solution Approach 2:
The system monitors changes in water rise rate parameters before and after pump activation to detect backflow conditions. By focusing on parameter changes rather than absolute values, the system achieves reliable failure detection with simple measurements, extending pump lifespan without requiring complex analysis equipment
3Loss of information
If sump pump systems use simple on/off control without rise rate detection, then the ease of operation is maintained, but the loss of information occurs due to inability to detect backflow conditions
Solution Approach 1:
The system replaces complex mechanical backflow detection mechanisms with electronic sensors that measure water rise rates. This substitution captures backflow information electronically without adding mechanical complexity to the operation, maintaining ease of use while eliminating information loss about backflow conditions
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
This solution enables early detection and resolution of sump pump failures, preventing flooding and extending the lifespan of the sump pump, reducing maintenance and replacement costs.
Implementation Method 1
a sensor that is disposed in the sump basin and configured to detect acceleration
Data Source
AI summary
A sump pump system detects backflow from an outlet pipe in a sump pump system and implements control of the sump pump in light of the detected backflow (or lack thereof). The sump pump system may detect the backflow (or lack thereof) by detecting and comparing water rise rates in a sump basin before activation or engagement of the sump pump (e.g., immediately before the pump starts pumping) and after the pump has disengaged or deactivated (e.g., immediately after the pump stops pumping). The rises rates may be detected via sensors configured to detect motion or acceleration (e.g., accelerometers, inertial measurement units, or force acceleration sensors) placed in the sump basin such that detect motion of water in the basin corresponding to changing water levels.