Flat-Roof Drain Backup Detection With Multi-Zone Sensor Bar
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Solution Overview
Problem
Flat roofs face challenges with water drainage, leading to water pooling, structural stress, leaks, and material degradation due to inadequate drainage systems, which existing methods fail to address effectively.
Innovation Solution
A water backup detection system with a slanted bar segmented into multiple zones, equipped with sensors and a housing that allows controlled water entry, triggering zone-specific alerts and utilizing a wireless communication network for real-time monitoring and alerts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional drainage systems are used on flat roofs, then construction is simpler and cost-effective, but water pooling occurs leading to structural stress and material degradation
Solution Approach 1:
The detection system performs preliminary monitoring of water accumulation conditions before structural damage occurs. Sensors detect water presence in advance, enabling proactive intervention to prevent the drainage system from failing under structural stress.
Solution Approach 2:
The system continuously monitors water accumulation and provides feedback through alerts when threshold levels are reached. This feedback loop enables real-time detection of drainage failures and triggers appropriate responses to prevent structural degradation.
2Device complexity
If manual inspection methods are used for water backup detection, then system complexity is reduced, but labor costs and response time increase
Solution Approach 1:
The detection system performs self-monitoring and self-alerting functions without requiring manual inspection. Sensors automatically detect water backup conditions and trigger alerts, eliminating the need for human inspectors while reducing response time.
Solution Approach 2:
The system replaces manual mechanical inspection with automated electronic sensing and wireless communication. Sensors and wireless transmitters substitute for human inspectors, enabling continuous monitoring without labor costs and immediate detection of water backup conditions.
3Measurement precision
If sensors are exposed to environmental factors for direct water detection, then detection accuracy improves, but false alarms increase
Solution Approach 1:
The housing provides a controlled local environment for the sensor, differentiating between actual water backup conditions and general environmental moisture. The sensor detects water only when it accumulates to problematic levels within the housing, filtering out false alarms from normal environmental factors.
Solution Approach 2:
The housing acts as an intermediary between the sensor and the external environment. It allows the sensor to detect water accurately while protecting it from false environmental triggers, mediating between detection needs and reliability requirements.
Data Source
AI summary
A water backup detection system includes a slanted bar tapering from one edge to opposite edge, the slanted bar is segmented into a plurality of detection zones, and a sensor assembly, with a sensor correspondingly attached to each of the plurality of detection zones on the slanted bar. Further, the system has a housing, enclosing the slanted bar, having side slots for controlled water entry, the sensor assembly is configured to trigger an alert corresponding to a water level in the housing.