Dual Wireless Interface for Power-Constrained Law Enforcement Devices

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Solution Overview

Problem

Wireless communication systems for law enforcement devices face challenges such as high power consumption in high-bandwidth modes, minimal or inaccessible user interfaces, and data security vulnerabilities, particularly in battery-powered devices like cameras and weapons used in extended shifts without recharging, and network devices that need to minimize power consumption and secure data transfer.

Innovation Solution

Implementing a dual wireless interface system with a low-power interface for initial notifications and a high-power interface for data transfer, where the wireless interface control engine selectively activates the high-power interface upon receiving a connectionless data notification, allowing for efficient power management and secure data transmission without user intervention, using technologies like Bluetooth Low Energy for low-power modes and WiFi for high-bandwidth connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the high-power wireless interface is continuously activated for data transfer, then the data transmission rate is improved, but the power consumption increases significantly

Engineering Contradiction:

Improvedata transmission rateVSAvoidpower consumption

Core Design Contradiction:

SpeedVSUse of energy by moving object

Solution Approach 1:

The wireless interface is segmented into two distinct modes: a low-power interface for initial communication and notification, and a high-power interface for bulk data transfer. This segmentation allows the system to use only the necessary portion of wireless capability at any given time, thereby reducing overall power consumption while maintaining high data transmission rates when needed.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The high-power wireless interface is activated periodically and selectively based on the need for data transfer, rather than continuously. The system transitions between low-power and high-power states as needed, enabling high-speed data transmission only during necessary periods while conserving energy during idle or low-activity periods.

Inventive Principle:

Principle #19Periodic action

2Use of energy by moving object

If the wireless interface remains inactive to conserve power, then power consumption is reduced, but the response time for data transfer increases

Engineering Contradiction:

Improvepower consumptionVSAvoidresponse time

Core Design Contradiction:

Use of energy by moving objectVSLoss of time

Solution Approach 1:

The low-power wireless interface remains continuously active to perform preliminary actions such as receiving notifications, announcing data availability, and initiating communication protocols. This preliminary activity ensures that when high-power data transfer is needed, the system can transition quickly without significant delay, as the initial communication framework is already established.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The low-power wireless interface acts as an intermediary between the inactive high-power interface and the external environment. It handles initial handshaking, notification exchange, and activation requests, enabling the high-power interface to remain dormant while still allowing the system to respond promptly when data transfer is required.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If user intervention is required to activate wireless interfaces, then security is improved, but the ease of operation deteriorates

Engineering Contradiction:

ImprovesecurityVSAvoiduser intervention requirement

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system is designed to automatically manage wireless interface activation without requiring user intervention. The low-power interface autonomously receives notifications, determines when data transfer is needed, and activates the high-power interface accordingly. This self-service approach maintains security through controlled activation while eliminating the need for manual user actions.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system implements feedback mechanisms where the low-power interface continuously monitors for notifications and data availability conditions. Based on this feedback, the system automatically makes decisions about when to activate the high-power interface, ensuring secure operation while maintaining ease of use through automated response to environmental cues.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS11425653B2Systems and methods for automatically activating wireless networks

Publication Date: 2022.08.23 AXON ENTERPRISE INC

AI summary

A recording device captures information and stores the information in a data store as a data record. The recording device includes a low-power wireless interface and a high-power wireless interface. A network device includes a low-power wireless interface and a high-power wireless interface. An activation device transmits a data notification and a network notification. Upon receiving the data notification, the network device activates its high-power wireless interface. Upon receiving the network notification, the recording device activates its high-power wireless interface. The recording device transmits the data record to the network device via its high-power wireless interface.