Personal Security Alarm Holder for Automatic Skin-Contact Loss Detection
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Solution Overview
Problem
Existing personal security devices require user activation, which may be difficult during stressful situations, leading to improper use or inability to operate under attack conditions.
Innovation Solution
A personal security device with a sensor that detects skin contact and automatically initiates an alarm when contact is lost, using a garment attachment to ensure consistent placement and integration with a wearer's clothing, and transmitting an alarm message via a radio transceiver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the alarm device requires user activation, then the device can be controlled by the user, but the device may not be activated in time during stressful situations
Solution Approach 1:
The alarm device automatically detects skin contact loss and triggers the alarm without requiring user activation. The sensor continuously monitors contact status and the processor automatically initiates the alarm sequence when separation is detected, eliminating the need for user intervention during stressful situations.
Solution Approach 2:
The device performs preliminary skin contact detection and prepares the alarm system in advance. The sensor is continuously monitoring contact status before any emergency occurs, and the system is pre-configured to immediately trigger the alarm upon detecting contact loss, eliminating response delays.
2Measurement precision
If the sensor is placed on the first side of the body facing outward, then the sensor can detect skin contact, but the device structure becomes more complex
Solution Approach 1:
The sensor, processor, transceiver, and power source are integrated into a single compact body. The sensor is positioned on the first side facing outward for skin contact detection, while all other components are merged within the same housing, maintaining detection accuracy without adding external structural complexity.
Solution Approach 2:
The device body serves multiple functions: it houses the sensor for skin contact detection, contains the processor for signal analysis, provides power through the power source, and enables communication via the transceiver. This multi-functionality reduces the need for separate components and simplifies the overall device structure.
3Reliability
If the garment attachment is on the second side of the body, then the device can be securely attached to clothing, but the device placement becomes more complex
Solution Approach 1:
The device is segmented into two functional sides: the first side contains the skin-contact sensor for detection, while the second side contains the garment attachment mechanism. This segmentation allows each side to be optimized for its specific function and simplifies the attachment process to a simple clip-on action.
Solution Approach 2:
The garment attachment acts as an intermediary between the device body and the clothing. The clip mechanism provides a simple mechanical interface that securely attaches the device to garments without requiring complex installation procedures or modifying the clothing itself.
4Loss of time
If the device automatically transmits alarm messages, then timely notification is achieved, but the device requires additional components
Solution Approach 1:
The processor, transceiver, and sensor are integrated into a single compact body. The processor automatically analyzes sensor signals and triggers the transceiver to send alarm messages without user intervention, achieving rapid notification while maintaining a simple integrated structure.
Solution Approach 2:
The device automatically processes sensor data, determines when skin contact is lost, and initiates alarm message transmission without requiring user activation. The integrated processor and transceiver work together as a self-service system that immediately notifies contacts or authorities when separation is detected.
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 provides automated alarm activation without user intervention, ensuring timely notification of authorities or contacts in case of separation from the wearer's skin, enhancing personal safety.
Implementation Method 1
the sensor is configured to detect a change from first being in contact with a skin of a wearer of the device and then not being in contact with the skin of the wearer
Data Source
AI summary
A holder for a personal security alarm device is configured to removably hold the personal security alarm device, and is further configured to position the personal security device between a garment worn by the person and the person's body. If the contact between the device and person's body is lost, the device initiates an alarm process through a mobile device (such as a smart phone) carried by the person. The fact that the device is clipped onto or otherwise held between the person's clothing and body facilitates initiation of the alarm process if the person's clothing, and in particular the garment to which the device is coupled, is removed from the person, as may happen in an attack on the person by another.