Wearable Biosensor for Rapid Electric Shock Detection
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Solution Overview
Problem
Existing personal electrical protection devices often fail to quickly disconnect power circuits when a person comes into contact with them, and may not function effectively in all locations or without a power source.
Innovation Solution
A wearable device equipped with a sensor that detects electric charge flow on the human body, using a bipolar junction transistor set to activate a power circuit and illuminate an LED, which is then detected by an optocoupler to transmit wireless signals to disconnect the power switch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ground disconnection devices are used to protect against dangerous voltages, then fire and dangerous voltages in grounded equipment can be avoided, but the response time is delayed (taking a second or more to sense current flow)
Solution Approach 1:
The patent replaces traditional mechanical/electromagnetic current sensing mechanisms with a biosensor that detects electrical charge through biological tissue. This substitution enables detection of charge flow at the microampere level with significantly faster response time, as the biosensor can detect charge accumulation on the human body before it becomes a dangerous current flow that traditional devices would detect.
2Reliability
If ground based devices are used to protect in one location, then protection is provided for that specific location, but the device cannot protect individuals who need to roam or move to different locations
Solution Approach 1:
The patent implements a self-service protection system where the individual carries their own protection device (wearable biosensor) rather than relying on fixed ground-based infrastructure. The device autonomously monitors the user's electrical charge status and triggers alerts or warnings when dangerous charge accumulation is detected, enabling portable protection that adapts to the user's movement throughout the facility.
3Reliability
If traditional protection devices are used, then protection is provided when connected to power system, but the device requires physical connection to power system and power source to function
Solution Approach 1:
The patent extracts the essential protection function from the complex power system infrastructure and implements it in a standalone wearable device. The biosensor operates independently without requiring connection to the power system or external power sources, as it detects electrical charge accumulation on the human body itself. This extraction simplifies the system by removing the need for physical connections to power infrastructure while maintaining protection functionality.
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 device effectively and quickly disconnects the power circuit upon detecting a low-level electric charge, providing protection regardless of the user's insulation status and location, without requiring a continuous power source.
Implementation Method 1
a sensor designed to convey a flow of electric charge sensed on a human body
Implementation Method 2
the at least one bipolar junction transistor set is functioning as a switch designed to close the power circuit upon receiving a current of at least 0.1 microampere conveyed from the sensor, and wherein the power source is designed to illuminate the illumination source upon closing the power circuit
Implementation Method 3
an optocoupler coupled with a transmitter designed to transmit wireless signals, wherein the optocoupler is configured to detect light received from the light illumination
Data Source
AI summary
A wearable device designed to operate sets of instructions for protecting individuals from electric shocks. The wearable device comprises a sensor designed to convey a flow of electric charge sensed on a human body. The wearable device also comprises at least one wire configured to accept the flow of electric charge received from the sensor and convey the flow of electric charge to at least one bipolar junction transistor set, wherein the at least one bipolar junction transistor set is connected a power circuit comprising an illumination source connected to a power source, wherein the at least one bipolar junction transistor set is functioning as a switch designed to close the power circuit upon receiving a current of at least 0.1 microampere conveyed from the sensor, and wherein the power source is designed to illuminate the illumination source upon closing the power circuit by the at least one bipolar junction transistor set.