Mobile Defense Device with Lateral Warning Signal Generator
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Solution Overview
Problem
Current defense systems lack portable and mobile solutions that can simultaneously defend against and deter attackers or burglars, often requiring stationary installations and complex manual triggering.
Innovation Solution
A mobile defense device equipped with an adapter for a defense device, a warning signal generator, and a microcontroller to control continuous acoustic and visual signals, allowing for easy activation and deterrence of attackers, combined with a standardized irritant spray device for repelling, and an alarm trigger for alerting helpers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a stationary alarm system is used, then the warning signal can be continuously played back, but the device cannot be easily carried or moved
Solution Approach 1:
The alarm device is designed to perform multiple functions: it can be used as a stationary alarm system for continuous warning signal playback, and simultaneously as a portable device that can be easily carried and moved. The device integrates both stationary mounting capability and mobile usability into a single system.
Solution Approach 2:
The alarm device transitions from a static stationary system to a dynamic portable system. The device can be mounted on walls or surfaces for stationary use, but can also be detached and carried around, allowing it to adapt its position and function based on user needs.
2Reliability
If manual triggering of alarm systems is required, then the system can be activated, but complex alignment and operation are needed during an attack
Solution Approach 1:
The alarm device is pre-oriented and pre-positioned during installation so that when activated, it automatically points in the correct direction without requiring manual alignment during the attack. The triggering mechanism is simplified to require minimal user input, as the complex alignment has already been performed in advance.
Solution Approach 2:
The alarm device automatically orients itself and activates its warning signals without requiring complex manual alignment or adjustment by the user during an attack. The system serves itself by maintaining proper orientation and activating functions autonomously upon triggering.
3Ease of manufacture
If the warning signal generator is positioned at the top of the device, then it can be easily mounted, but the signal can be blocked by the user's hand
Solution Approach 1:
The warning signal generator is positioned on the lateral surface of the device rather than at the top, changing the spatial dimension of signal emission. This lateral positioning ensures that the warning signal projects outward from the side of the device, making it impossible for the user's hand to block the signal while holding the device.
4Measurement precision
If the defense device requires precise alignment towards the attacker, then the spray can be accurately directed, but the operation becomes complex and time-consuming
Solution Approach 1:
The defense device is pre-oriented during installation or initial setup to point in the correct direction. The adapter is designed with fixed orientation features that ensure the spray nozzle is already aligned properly before use, eliminating the need for complex real-time alignment during an attack.
Solution Approach 2:
The adapter and defense device are designed with asymmetric features that provide a preferred holding position and automatic orientation. The geometry of the adapter ensures that when the user holds the device naturally, the spray is automatically directed toward the attacker without requiring deliberate alignment adjustments.
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 mobile defense device provides effective defense and deterrence without the need for complex alignment, ensuring continuous warning signals and easy activation of alarms, even when the user is overwhelmed, and can be used in various settings, including homes and on the move.
Implementation Method 1
a warning signal generator (8), wherein after the warning signal trigger (7) has been actuated, a warning signal is continuously played back by the warning signal generator (8) in order to deter the attacker or the intruder with the warning signal
Implementation Method 2
irritant spray devices, for example, are used as defense devices. The irritant spray devices are aimed at the attacker and the irritant contained in the irritant spray devices is sprayed
Data Source
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Figure 5
AI summary
A mobile defence device (1) for defending against and for deterring an attacker or an intruder, comprising an adapter (2), for example for accommodating a standardized irritant spraying device (3), and comprising a warning signal device (6), wherein, using the mobile defence device (1), irritant can be sprayed out of the irritant spraying device (3) when the irritant spray device (3) is arranged in the adapter (2), wherein the warning signal device (6) has an actuatable warning signal trigger (7) and a warning signal generator (8), wherein, after actuating the warning signal trigger (7), a warning signal is continuously repeated by the warning signal generator (8) in order to deter the attacker or the intruder by means of the warning signal.