Ultrasonic Crowd Control System Using Acoustic Beams

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Solution Overview

Problem

Current crowd-control methods, such as batons, irritant gases, and rubber bullets, are either ineffective or pose risks of injury when dealing with large hostile crowds, as they involve physical contact or dispersal, which may not adequately quell violent behavior in overwhelming situations.

Innovation Solution

A non-invasive, non-lethal system utilizing ultrasonic sound waves to create directional beams that induce tickling or tingling sensations, disrupting violent intent by targeting areas like the base of the skull, which combines with oxytocin release to quell hostile actions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional crowd-control means (batons, irritant gases, rubber bullets) are used, then crowd control capability is improved, but risk of injury and lethality increases

Engineering Contradiction:
Improvecrowd control capabilityVSAvoidrisk of injury
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces mechanical crowd-control systems (batons, shields, rubber bullets) with an ultrasonic acoustic field system. The ultrasonic transducers generate high-frequency sound waves that create tactile sensations on skin surfaces, eliminating the need for physical contact and mechanical force, thereby removing the risk of injury while maintaining crowd control effectiveness

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the physical parameter of sound frequency to ultrasonic ranges (above human audible limit) and adjusts amplitude to create specific tactile sensations. By controlling these parameters, the system produces disarming sensations without causing physical harm, resolving the contradiction between effective crowd control and injury prevention

Inventive Principle:
Principle #35Parameter changes

2Reliability

If irritant gases or sprays are used, then crowd control effectiveness is improved, but health reactions and lethality risk increase

Engineering Contradiction:
Improvecrowd control effectivenessVSAvoidhealth reactions
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent substitutes chemical irritant systems (gases, sprays) with an acoustic field system. The ultrasonic waves interact with the skin surface to produce tactile sensations, eliminating chemical contact and associated health reactions while maintaining the ability to disrupt violent behavior and control crowd movement

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If tasers are used for individual violent individuals, then violent behavior is resolved, but effectiveness decreases when outnumbered by crowds

Engineering Contradiction:
Improveviolent behavior resolutionVSAvoideffectiveness against crowds
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent divides the crowd control function into multiple distributed ultrasonic transducers arranged in arrays. Each transducer operates independently but contributes to the overall acoustic field, enabling the system to cover large areas and handle large crowds simultaneously, unlike single-unit tasers

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The ultrasonic field system serves multiple functions simultaneously: it creates disarming sensations, disrupts violent behavior, and can be deployed against both individuals and large crowds. The system's scalability and area coverage make it universally applicable across different crowd control scenarios

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Speed

If loud sounds or electric shocks are used to stop violent behavior, then immediate effect is achieved, but serious injuries occur

Engineering Contradiction:
Improveresponse speedVSAvoidserious injuries
Core Design Contradiction:
SpeedVSObject-affected harmful factors

Solution Approach 1:

The patent uses high-frequency ultrasonic vibrations that penetrate the skin surface to create tactile sensations. The vibrations are intense enough to produce disarming effects but are distributed across a large area, avoiding the concentrated trauma of electric shocks or extreme loud sounds while maintaining rapid response capability

Inventive Principle:
Principle #18Mechanical vibration

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 system effectively creates a zone of non-hostile behavior by causing disarming sensations without physical harm, allowing for crowd control with minimal risk of injury, as demonstrated by its ability to stop forward motion and drop weapons, thereby maintaining order without lethal consequences.

Implementation Method 1

The invention is a system that produces ultrasonic sound, forms directional sound beams which then wash over peoples' clothing and bare skin causing tickling/tingling sensations

Methodology Applied
Scientific EffectUltrasonic sound waves: Ultrasound

Implementation Method 2

The ultrasonic sound waves, appropriately phased, produce a series of destructive and constructive interference patterns such that a beam of high-energy waves is produced

Methodology Applied
Scientific EffectDestructive and constructive interference: Interference

Data Source

PatentUS11898823B2Non-lethal crowd-control system
Publication Date: 2024.02.13 TANNENBAUM ADAM BENJAMIN
  • US11898823B2 patent drawing
  • US11898823B2 patent drawing
  • US11898823B2 patent drawing

AI summary

The invention herein disclosed is a non-lethal crowd-control system that uses ultrasonic sound waves to induce disarming sensations of tickling/tingling upon persons in a hostile/violent crowd who are located within a zone of desired crowd control. The sensations can cause persons to cease current behavior and attempt to eliminate the sensations. Moving backwards out of the areal zone of control will reduce or eliminate the sensations. As a result a control zone area is established without use of batons, sprays or rubber-bullet loaded weaponry.