Anti-Theft Devices TRIZ Cases

Stored GPS parking coordinates and directional LEDs guide users back to a parked vehicle when memory or phone access is unreliable.

Tiered delay control adapts storage compartment unlocking to ignition state and security event severity, improving vehicle access protection.

An external lock controller reads battery charge state and sets upper and lower thresholds to limit stolen battery use without redesigning the pack.

Comparing electromagnetic exposure fingerprints from two devices verifies true proximity and blocks relay-based unauthorized access.

A trapped-key steering wheel lock keeps the key captive until mounted, extending interlock protection to vehicles without detachable brake couplings.

An interference antenna blocks vehicle-to-key signals while NFC links a mobile terminal, avoiding key removal and simplifying car sharing.

A rule-based trigger heats exterior biometric sensors only when snow or ice risk is detected, preserving key-off battery reserve.

Hidden panel sensors detect gestures to unlock or open vehicle doors, replacing handles while adding visible lock status feedback.

A mobile app relays challenge-response data to a local key module, avoiding server-managed keys while reducing leakage risk and maintenance cost.

Motion, audio, and vibration sensors are combined to detect vehicle theft quickly while filtering false alarms and checking authorized presence.

Progressive floor elevation and raised seating improve passenger visibility, comfort, and underfloor storage without exceeding bus height limits.

A vehicle chip builds a changing unlock password from real-time vehicle status, reducing fixed-code theft and unauthorized door access.

Authenticated mileage backup preserves the larger odometer value during meter ECU replacement, reducing tampering risk and transfer time.

Correlated camera, radar, or ultrasonic data enables occupant identification even when one interior sensor fails or lighting is poor.

AI re-authenticates drivers during vehicle operation with speed-based checks to block unauthorized use without unsafe in-motion prompts.

Multi-sensor facial and body analysis detects spoofing attempts in vehicle occupant authentication, improving access security during driving.

A carrier-over-lock layout blocks lock removal until the carrier is detached, improving vehicle powertrain theft resistance.

Load profile monitoring detects unauthorized outlet use when the vehicle is off, then shuts off power or sends a wireless alert.

A hard-wired cabin switch bypasses remote jamming to lock the anti-theft member, while preventing in-cabin unlocking after intrusion.

Radar gesture criteria for speed, direction, and trajectory help vehicle flap control reject unintended motions and improve contactless operation.

A passive transponder in the electronic key enables coded emergency vehicle access when the key battery is depleted, avoiding a mechanical backup key.

Combining a mobile digital key with ultrasonic proximity sensing enables hands-free vehicle door release while adding user presence verification.

Camera, GPS, and proximity sensing block remote engine start in garages to prevent carbon monoxide buildup and alert the user.

Kinetic sensors inside the wheel detect non-coherent movement and send mobile alerts directly to a remote server without a vehicle CPU.

When a parked EV is left running, key location and occupancy sensing can shut down the engine and lock the doors without re-entry.

Double authentication links mobile authorization with user-actuated sensor input to block relay-style unauthorized vehicle access.

User pose outside the cabin guides selective door sensor activation, preserving monitoring while reducing battery drain after shutdown.

On-board diagnostics enables secure fingerprint reset in vehicles when a new owner lacks the prior password, reducing theft risk.

Fluid pressure monitoring and safety lock checks enable remote work machine start without long idle warming or misleading slope-based fluid readings.

Sequential outer sensors trigger automatic sliding door opening or closing, while lock-state checks preserve secure hands-free access.

Threshold-based wake-up switches key communication modules on only when needed, cutting vehicle power use while improving key fob positioning.

Channel feature checks on pilot signals help keyless vehicle access systems detect relay attacks before granting access.

A stepped lock collar diameter tunes shaft friction to protect the lock key under excess torque without impairing steering feel.

Two-area key position checks suppress unintended vehicle door closing while keeping automatic closure responsive and accurate.

Two UWB transceivers use time-of-flight and reflected-wave comparison to locate a phone more precisely for reliable vehicle function activation.

A removable external interface lets users steer and move a vehicle over short distances without repeated entry and exit.

Code-based access keeps the vehicle in limited-power mode until authorization, reducing theft risk while enabling user-specific performance settings.

A keyed exhaust valve blocks engine operation during theft events, avoiding ignition or fuel-system bypass used in existing anti-theft systems.

RF interference blocks direct vehicle-key signals while NFC links a mobile terminal for secure remote locking, unlocking, and key sharing.

A battery-terminal immobilizer uses current sensing and ultrasonic hood-distance detection to block engine start and alert users to tampering.

User authentication links each operator to stored language and machine settings, so shared working machines load the right setup automatically.

User feature recognition restores stored vehicle settings after courier use, avoiding manual readjustment for the next driver.

UWB time-of-flight ranging and selective antenna use help keyless vehicle authentication resist relay attacks with lower power use.

A sliding thermoplastic wheel boot immobilizes vehicles without towing by locking the wheel and blocking lug nut removal.

A single terminal button unlocks the vehicle and enables parking movement control, cutting button count, cost, and user confusion.

Multiple confidence thresholds adapt exterior and updated biometric scans to cut false denials and unauthorized vehicle access.

Roadside units issue pseudonym certificates with low latency, cutting revocation traffic while preserving anonymity and unlinkability.

A terminal interface adapts camera lists to each vehicle, making parked-vehicle video playback easier across different camera setups.

A password-authenticated smart key module lets one key register across multiple construction machines, even without terminal communication.