Anti-Theft Devices TRIZ Cases
- Capacitive Proximity Sensor Foot Detection Energy Saving Mode
A capacitive proximity sensor evaluation system switches between energy-saving and normal modes to detect foot movements.
- Smart Key Function Sharing with Usage Restrictions
A smart key controller sets usage restrictions for vehicle functions to enable secure sharing.
- Motor Vehicle Key Bluetooth Link Authentication
A motor vehicle key establishes a secure Bluetooth link with a mobile terminal to initiate remote access.
- Construction Machine Battery Interruption Alarm Control
An alarm control device issues a warning sound when an operator attempts to interrupt battery power supply to the controller.
- Quasi-Resonant Driver Frequency Adaptation for Transponders
A quasi-resonant driver adjusts transmission frequency to match transponder resonance using dynamic pause insertion and capacitance variation.
- UWB Passive Entry Distance Verification Against Relay Attacks
Double-sided ultra-wideband ranging prevents relay attacks by verifying physical distance between the key fob and vehicle.
- Keyless Vehicle Control via Static Detection and Periodic Authentication
Portable device detects static state to trigger periodic challenge-response authentication, preventing unintentional unlocking while reducing battery drain.
- Electronic Key Motion Sensor Relay Attack Prevention
A vehicle electronic key uses a motion sensor to detect movement and control transceiver states for secure communication.
- Vehicle Wheel Positioning via Antenna Signal Scrambling
Transmit antennas send garbled signals to block distant wheel responses, resolving reliability issues from noise sensitivity.
- Pulse Frequency Control for Wireless Ranging Interference
Adjusting pulse repetition frequencies via offset values reduces transmission collisions and delays in multi-device ranging systems.
- Vehicle Door Ultrasonic Foot Detection Logic
Ultrasonic sensing unit distinguishes user feet from non-human objects using time thresholds, preventing incorrect door activation and conserving power.
- Electronic Key Registration via Management Center Intermediary
An intermediary management center verifies electronic key registration using AES challenge-response protocols to prevent unauthorized vehicle access.
- Key Locator Using Dual Antenna Query Stages for Accurate Positioning
A key locator uses two antennas to send sequential queries that identify responding electronic keys within a vehicle.
- Steering Wheel Cover Layer with Integrated Touch Sensor
Integrating a touch sensor into the steering wheel cover layer eliminates the need for separate remote controllers or security cards.
- Vehicle Remote Start System Ignition Wire Learning Controller
A remote start controller maps ignition wires via voltage sensing during a learning mode to enable automatic engine startup.
- Vehicle Starter Circuit Control for Remote Disable Reliability
Test signals verify cellular coverage before disabling vehicles, ensuring remote re-enabling capability in areas without network access.
- Automotive Authorization Control Using Radar Motion Pattern Recognition
Radar tracks user motion patterns to authenticate access, resolving accuracy issues caused by metal surfaces and environmental contaminants.
- Vehicle Anti-Theft Device Battery Power Consumption Control
A vehicle anti-theft device consumes battery power via a dedicated load to prevent engine startup.
- Vehicle Access Control System for Secure Service Maintenance
A vehicle access control system authenticates service providers via wireless networks to enable secure on-site maintenance operations.
- Smart Alarm Module Reducing Wiring Complexity via CAN Bus Integration
A smart alarm module integrates with a vehicle's CAN bus to manage security functions through standardized digital communication.
- Vehicle Transmitter Antenna Sharing for Immobilizer and Access
A vehicle identification transmitter uses three low frequency antennas with a shared first antenna to serve both immobilizer and access functions.
- Remote Engine Control via Auxiliary Key Reader
An external key reader authenticates signals to a vehicle controller, enabling remote engine operation while eliminating theft risks from unattended keys.
- Multi-Sensor Fingerprint Authentication Sequence for Vehicle Security
A security device uses multiple fingerprint sensors to create complex authentication sequences without adding physical buttons.
- Vehicle Boot Lid Control via Image Authentication
Image analysis authenticates users to open the vehicle boot lid, resolving security and ease of operation trade-offs.
- Vehicle Power Distribution System Proactive State Transition
A vehicle power distribution system transitions between operational states using transponder proximity detection to manage energy consumption.
- Mobile Transponder Vehicle Access via Dynamic Authorization
A mobile transponder receives encrypted access authorization via a cellular link to activate secured vehicle functions.
- Ignition Button Alarm Device for Child Presence Detection
Mounting an alarm frame around the ignition button triggers audible alerts when the lid opens, reducing child heat exposure risks.
- Vehicle Radar Perimeter Security and Dynamic Door Control
MIMO radar determines key fob location to unlock the nearest door, reducing false alarms while maintaining low power consumption.
- Vehicle Start Function Security Against Relay Station Attacks
A vehicle control system blocks passive start functionality when locked to prevent unauthorized access.
- BLE Vehicle Detection Using Time of Flight and Power Correction
A detection device transmits ultra high frequency signals on multiple channels to determine portable user device presence inside or outside a vehicle.
- Steering Device Slip Ring Stabilizes Torque
Cylindrical slip ring interposed between steering shaft and key lock collar absorbs dimensional errors to stabilize rotation.
- Server-Based Debug Authorization for Low-Cost Embedded Systems
Externalizing debug authorization to a server prevents illegal debugging while keeping embedded hardware costs low.
- Vehicle Unlocking Device Using Terminal Identification and Local Image Capture
A vehicle unlocking device receives identification information from a terminal and captures an image of the person to unlock the lock unit.
- Vehicular Door Opening Warning System Using Sensor Fusion
A vehicular alert system uses radar and camera data to detect approaching objects near parked vehicles.
- Vehicle Card Key PCB Substrate Groove Design for Molding Precision
Dedicated PCB substrate grooves fix mechanical keys and batteries, eliminating mold alignment defects and reducing manufacturing errors.
- Electronic Key System Wireless Function Transfer
A portable terminal copies an electronic key function to another device via wireless communication.
- Vehicle Steering Column Antitheft Bolt with Dual-Angle Cam Slider
Dual-angle cam surfaces in the locking bolt cavity guide a slider to reduce unlocking torque, preventing key damage and easing operation.
- Vehicle Operation Detection Using Peak Position Timing
A vehicle operation detecting device determines swipe direction by tracking the sequence of peak positions in sensor signals.
- Vehicle Monitoring System Using Feature Extraction for Crime Prevention
A vehicle monitoring system extracts passenger features to transmit data for database comparison and operational control.
- Vehicle Mobile Device Authentication via Locally-Perceivable Passcode
A vehicle controller generates a locally-perceivable passcode signal to authenticate a mobile device for operation.
- Removable Wheel Revolution Counter Using Magnetic Sensing
A removable housing hooks onto a nut anti-loosening device to mount an electronic counting system that measures wheel revolutions via magnetic field detection.
- Vehicle Computer Dynamic Detection Zone Activation
Computer defines inner and outer detection zones based on opening position to activate vehicle functions accurately.
- Vehicle Entry Control for Unregistered User Access
A vehicle entry control unit grants door unlocking to unregistered users based on face recognition matching.
- Vehicle Alarm System Using Wireless Authentication and State Detection
A vehicle alarm system authenticates portable terminals via wireless communication to detect user presence and trigger alarms.
- Smartphone Vehicle Tracking Proximity Arming
A vehicle monitoring system pairs a smartphone with a tracking device to automatically arm alerts when the owner walks away.
- Illuminated Virtual Handle for Handleless Vehicle Doors
An illumination assembly activates when a handleless door opens to light the grasp area.
- Vehicle Operator Authentication Using Dynamic Memory Reallocation
Processor authenticates vehicle operators using GPS and driving patterns while reallocating computing resources between volatile and non-volatile memory devices.
- UWB Distance Bounding Using Dual Threshold Analysis
Dual threshold analysis of channel impulse response calculates vehicle key distance using separate accuracy and security stages.
- Adaptive Sensitivity Control for Vehicle Hands-Free Door Access
Dynamic threshold adjustment resolves wall effect and energy waste by adapting sensitivity to hand approach patterns.
- Vehicle Antitheft Using ABS Inertia Sensor
Antitheft apparatus uses an inertia sensor to detect vehicle theft via acceleration signals.