Wearable Defensive Spray Watch for Fast Emergency Deployment
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Solution Overview
Problem
Existing defensive spray devices are bulky, difficult to transport, and slow to deploy, posing challenges in quick access and efficient operation during emergencies.
Innovation Solution
A user-wearable defensive spray apparatus integrated into a watch-like design with a flexible casing, secure canister retention, and integrated communication subsystem, allowing for easy access and quick deployment of defensive fluid, along with features like delayed spray and alarm activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional defensive spray devices are used, then they provide effective self-defense capability, but they are bulky and difficult to transport
Solution Approach 1:
The spray canister is nested within the hollow body of the smartwatch, with the canister positioned in the central cavity and secured by retention members. This nesting approach allows the defensive spray device to be compact and portable while maintaining full self-defense capability.
Solution Approach 2:
The smartwatch housing serves multiple functions: it acts as a wearable device, provides structural protection for the canister, and integrates electronic components for detection and communication. This multi-functionality reduces the need for separate devices, improving portability without sacrificing defensive capability.
2Weight of moving object
If traditional defensive spray devices are carried in bags or purses, then they are easier to transport, but it takes time to retrieve the device when needed
Solution Approach 1:
The spray canister is pre-positioned and secured within the smartwatch housing using retention members, and the system is pre-configured with sensors and communication modules. When danger is detected or the user activates the device, spray deployment occurs immediately without retrieval delay.
Solution Approach 2:
The smartwatch continuously monitors the environment using integrated sensors and can automatically deploy the spray canister when it detects a threat, eliminating the need for manual retrieval. The device serves itself by detecting danger and initiating defensive action automatically.
3Stability of the object's composition
If the spray canister is securely retained in the watch housing, then the device structure is stable, but it requires complex retention mechanisms
Solution Approach 1:
The retention function is extracted as separate retention members that can be independently positioned and secured within the housing. These retention members are designed to be simple in structure but effective in function, providing stable canister retention without requiring a complex overall retention system.
Data Source
AI summary
A defensive spray apparatus includes a casing, a canister comprising an inner chamber received at least partially within the casing, and a watch device with at least one wrist band coupled to the watch device. The casing includes at least one nozzle to spray the defensive fluid, at least one canister release button with a ledge to secure canister within the casing, at least one trigger on either side of the casing, and a communication subsystem connecting the apparatus to the watch device.