Vehicle Antitheft Apparatus Dynamic Sensor Sensitivity Control
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Solution Overview
Problem
Existing vehicle antitheft systems with remote control capabilities often inadvertently trigger alarms due to vibrations caused by remotely controlled vehicle components, leading to false alarms or missed theft detection when sensitivity is lowered.
Innovation Solution
An antitheft apparatus with an intrusion detection control part that deactivates or adjusts the detection function of the intruder detection part during remote control operations, including deactivating the alarm, lowering sensitivity, extending detection time, and reverting to original settings after remote control is complete.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sensitivity of the intrusion sensor is maintained high when the vehicle is parked, then theft detection capability is improved, but false alarms are triggered by vibrations from remote control operations
Solution Approach 1:
The sensor sensitivity is made dynamic rather than static. The control unit adjusts the sensitivity level based on the operational state of vehicle components. When a remote control operation is detected, the sensitivity is temporarily reduced to prevent false alarms from vibration-induced signals, and then restored to high sensitivity when the operation completes, thereby adapting the detection threshold to current operational conditions
Solution Approach 2:
The system implements feedback by monitoring the operational state of vehicle components and using this information to adjust sensor sensitivity. The control unit receives feedback about component operation status and automatically modulates the detection sensitivity accordingly, creating a closed-loop system that prevents false alarms while maintaining security
2Object-generated harmful factors
If the sensitivity of the intrusion sensor is lowered to prevent false alarms during remote control, then false alarm reduction is achieved, but theft detection capability deteriorates
Solution Approach 1:
The sensor sensitivity operates on a dynamic scale rather than a fixed level. The system transitions between high sensitivity and reduced sensitivity states based on real-time detection of remote control operations, ensuring that sensitivity is only temporarily reduced during actual component operations and immediately restored thereafter, thus maintaining overall detection capability
Solution Approach 2:
The control unit detects remote control operations in advance and proactively adjusts sensor sensitivity before false alarms can occur. By anticipating the vibration events associated with component operations, the system pre-reduces sensitivity during the operation window and restores it immediately after, preventing false alarms before they happen rather than reacting after detection
3Reliability
If the intrusion sensor remains constantly operational when the vehicle is parked, then security monitoring is improved, but remote control operations may accidentally activate the alarm
Solution Approach 1:
The control unit continuously monitors the operational state of vehicle components and uses this feedback to dynamically adjust sensor sensitivity. When component operation is detected during remote control, the system automatically reduces sensitivity to prevent false alarm activation, then restores monitoring sensitivity after the operation completes, creating an adaptive security system
4Object-generated harmful factors
If the sensitivity of the intrusion sensor is adjusted during remote control operations, then false alarm prevention is improved, but system complexity increases
Solution Approach 1:
The control unit is designed to serve multiple functions: it manages remote control operations, monitors component operational states, detects vibration signals, and adjusts sensor sensitivity levels. By consolidating these diverse functions into a single multi-functional control unit, the system achieves false alarm prevention through sensitivity adjustment without proportionally increasing overall system complexity
Data Source
AI summary
The present invention discloses an antitheft apparatus mounted on a vehicle for protecting the vehicle from theft. The vehicle has a remote control device that controls a vehicle component of the vehicle in accordance with a control signal transmitted from a terminal. The antitheft apparatus includes an intruder detection part for detecting intrusion of an intruder, and an intrusion detection control part for controlling the detecting function of the intruder detection part during a period when the vehicle component is being controlled by the remote control device.