Self-Testing Buoyant Shock Detector for Water Voltage Gradients
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Solution Overview
Problem
Existing shock detectors fail to effectively detect and alert individuals to harmful voltage gradients in bodies of water, locate the source of electrical faults, and ensure safe operation, particularly in preventing electric shock drowning.
Innovation Solution
A self-testing, buoyant shock detector with water electrodes measures voltage gradients, provides visual and audible alerts, and can be tethered or remotely controlled to locate and report hazardous conditions, ensuring safe operation and rapid fault identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a shock detector is deployed in a body of water to detect voltage gradients, then hazardous conditions can be detected, but the detector itself may be affected by the harmful electrical field and fail to operate properly
Solution Approach 1:
The patent introduces a self-test signal as an intermediary mechanism to verify detector functionality before full operation. The self-test circuit generates a known test signal that passes through the same measurement path as actual voltage gradient detections, allowing the system to confirm its electrodes and electronics are functioning properly despite being exposed to potentially harmful electrical fields in the water environment.
Solution Approach 2:
The patent implements preliminary self-testing action before the detector begins monitoring for hazardous voltage gradients. The self-test sequence activates the measurement circuitry and validates the signal path in advance, ensuring the detector is ready to reliably detect actual hazards without being compromised by the harsh electrical environment it will subsequently monitor.
2Reliability
If the shock detector provides continuous monitoring and alerting, then safety is improved, but false alarms may occur causing loss of information about actual hazards
Solution Approach 1:
The patent employs feedback through self-test signals that continuously verify the detector's own operational status. By comparing self-test results against expected values, the system can distinguish between genuine voltage gradient hazards and spurious signals caused by detector malfunction, thereby reducing false alarms while maintaining reliable hazard detection.
Solution Approach 2:
The detector performs self-diagnosis and self-validation through built-in self-test circuits that monitor its own functionality. This self-service capability allows the system to identify and flag its own malfunctions, preventing false alarms from compromising safety information while maintaining continuous monitoring of actual hazardous conditions.
3Ease of operation
If the shock detector is made portable and buoyant for easy deployment, then ease of operation is improved, but the device complexity increases to ensure proper flotation and positioning
Solution Approach 1:
The patent applies buoyancy as a counterweight force to gravity, allowing the detector to float on water surfaces without requiring complex mechanical support structures. The buoyant design naturally positions the detector for optimal electrode submersion and electrical isolation, simplifying deployment while maintaining operational effectiveness through physics-based force balance rather than complex mechanical systems.
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 shock detector effectively detects and alerts users to harmful voltage gradients, locates their source, and ensures safe operation by providing real-time feedback and remote monitoring, reducing the risk of electric shock drowning.
Implementation Method 1
measuring the existence of a harmful water voltage in a body of water through the measurement of a voltage gradient on a set of water electrodes
Data Source
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AI summary
A shock detector for determining the existence of a voltage gradient in a body of water, which may be remote from a structure and providing an alarm when the voltage gradient comprises a hazardous electrical condition that could injure or kill are person coming into contact with the body of water.