Wireless Personal Safety Device with Bluetooth Integration

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Solution Overview

Problem

Existing personal safety devices that combine cellular phones with personal protective features, such as pepper spray or stun guns, do not effectively work in conjunction with other personal safety devices over a personal area network, and often require modifications to the cellular phone or result in a bulkier, less functional device.

Innovation Solution

A wireless personal safety device system that integrates a cellular phone with an optical safety device and a personal safety device, allowing for communication and self-defense capabilities in one unit. The system includes a shocking mechanism, a sprayer for noxious substances, and a panic button, with software that enables features like separation alarms and monitoring of device capabilities over a Bluetooth network.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If personal safety devices are physically attached to cellular phones, then personal safety functionality is improved, but device bulk and weight increase making the phone less useful

Engineering Contradiction:

Improvepersonal safety functionalityVSAvoiddevice weight

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The patent replaces physical attachment mechanisms with wireless communication technology. The personal safety device communicates with the cellular phone via Bluetooth or other wireless protocols, eliminating the need for physical connectors, cables, or mechanical mounting structures. This substitution maintains functional integration while avoiding the weight and bulk penalties of physical attachments.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If cellular phones are modified to include personal safety features, then personal safety capability is improved, but device complexity and manufacturing difficulty increase

Engineering Contradiction:

Improvepersonal safety capabilityVSAvoiddevice manufacturing

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent divides the personal safety system into two independent components: a standard cellular phone and a separate personal safety device. Each component can be manufactured independently using existing production processes. The cellular phone requires no modification, while the personal safety device can be produced as a standalone unit. This segmentation avoids the manufacturing complexity of integrating multiple functions into a single modified device.

Inventive Principle:

Principle #1Segmentation

3Adaptability or versatility

If personal safety devices are integrated with cellular phones, then communication and self-defense capabilities are improved, but the device becomes bulkier and less functional

Engineering Contradiction:

Improvecommunication and self-defense capabilitiesVSAvoiddevice volume

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent uses wireless communication technology to replace physical integration, allowing the personal safety device and cellular phone to function as a coordinated system without physical combination. This enables full versatility of both communication and self-defense capabilities while maintaining the compact, separate form factors of individual devices.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Ease of operation

If standard cellular phones are used without modification, then ease of operation is improved, but compatibility with personal safety devices over personal area networks is reduced

Engineering Contradiction:

Improveease of useVSAvoidpersonal area network compatibility

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent designs the personal safety device with universal wireless communication capabilities that can interface with any standard cellular phone running compatible software. The device uses standardized protocols like Bluetooth, making it universally compatible across different phone models and manufacturers. This universality maintains ease of operation with unmodified phones while achieving broad personal area network compatibility.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP3255619B1Wireless personal safety device

Publication Date: 2025.04.30 MICRO APPS GRP INVENTIONS LLC

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AI summary

A personal protective device is combined with a cellular telephone. Activation of either device causes activation of the other device. Activation is achieved by a switch or voice command. Upon activation, a message asking for assistance at the present location is sent to a previously agreed upon emergency contact. The smartphone also starts both audio and video recording, which are also part of the data sent to the emergency contact person or service. Additionally, the personal protective devices are integrated into a unit that may combine such items as protective spray, Taser, strobe light, dye pack, siren and other deterrent technologies to ward off would-be attackers. These devices are integrated into a hand held unit that can be unobtrusively worn or carried in a purse or pocket. An optical safety device is included to protect the user from a potential assailant approaching from a rearward.