Integrated Ultrasonic and Acceleration Sensor Module for Vehicle Intrusion Detection
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Solution Overview
Problem
Conventional vehicle intrusion detection systems face issues with erroneous detections due to external impacts and high battery consumption, and the manufacturing cost is high due to separate modules for different sensors.
Innovation Solution
A vehicle intrusion detection system that combines a first sensor unit for detecting light or signals and a second sensor unit for detecting vehicle rotation, inclination, or impacts, both integrated into a single module for improved performance and cost-effectiveness, with the ability to boost transmission levels for enhanced detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ultrasonic sensor receiving sensitivity is increased to improve intrusion detection capability, then detection performance is improved, but battery consumption increases and erroneous detection from external impacts occurs
Solution Approach 1:
The patent combines the ultrasonic sensor and acceleration sensor into a single integrated sensor unit. This merging allows the system to simultaneously utilize intrusion detection signals from the ultrasonic sensor and impact detection signals from the acceleration sensor, enabling the system to distinguish between genuine intrusions and external impacts while maintaining high receiving sensitivity without excessive battery consumption.
Solution Approach 2:
The acceleration sensor acts as an intermediary that mediates between the ultrasonic sensor signals and the final intrusion determination. When the acceleration sensor detects external impacts, it provides information to the control unit that helps distinguish these impacts from genuine intrusions detected by the ultrasonic sensor, thereby reducing erroneous detections while maintaining high sensitivity.
2Measurement precision
If ultrasonic sensor transmitting level is increased to maintain detection range after removing low reception levels, then detection capability is maintained, but battery consumption increases
Solution Approach 1:
By merging the ultrasonic sensor with an acceleration sensor in a single integrated unit, the system can maintain adequate transmitting power levels while using the acceleration sensor to compensate for and validate detections, thereby maintaining detection range without requiring excessive transmission power that would increase battery consumption.
3Measurement precision
If inclination sensor or impact sensor is used to detect vehicle impacts, then impact detection capability is provided, but erroneous detection occurs due to sensitive response to external simple impacts
Solution Approach 1:
The patent merges the impact detection capability into an integrated sensor unit that combines ultrasonic and acceleration sensors. This allows the system to cross-validate signals from both sensors, distinguishing between simple external impacts and genuine intrusions by analyzing the combined data, thereby improving reliability while maintaining impact detection capability.
Solution Approach 2:
The control unit uses feedback from both the ultrasonic sensor and acceleration sensor to make informed intrusion determination decisions. When the acceleration sensor detects impacts, this feedback information is used to adjust the interpretation of ultrasonic sensor signals, reducing erroneous detections while maintaining accurate impact and intrusion detection.
4Adaptability or versatility
If separate modules are used for different sensor functions, then detection coverage is comprehensive, but manufacturing cost increases
Solution Approach 1:
The patent merges multiple sensor functions (ultrasonic intrusion detection and acceleration-based impact detection) into a single integrated sensor unit. This consolidation maintains comprehensive detection coverage while reducing the number of separate components that need to be manufactured, assembled, and installed, thereby lowering manufacturing costs.
Solution Approach 2:
The integrated sensor unit is designed to perform multiple functions: ultrasonic wave transmission and reception for intrusion detection, acceleration sensing for impact detection, and combined signal processing. This multi-functionality eliminates the need for separate dedicated modules for each detection type, reducing overall system complexity and manufacturing cost while maintaining comprehensive detection capabilities.
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 reduces erroneous detections by distinguishing external impacts from vehicle intrusions, improves detection performance, and lowers manufacturing costs by using a single module for multiple functions, effectively monitoring various types of vehicle intrusions.
Implementation Method 1
a first sensor unit which detects light or a signal reflected by an object
Implementation Method 2
a second sensor unit which detects the rotation or inclination of the vehicle or an impact against the vehicle
Data Source
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AI summary
The present invention relates to a vehicle intrusion detection system and a vehicle intrusion detection method, which are capable of effectively detecting various types of vehicle intrusions, minimizing incorrect detections, and lowering manufacturing costs of a system, and the vehicle intrusion detection system which is mounted in a vehicle to detect a vehicle intrusion comprises: a first sensor unit which detects a signal or light reflected off an object to generate a first detection signal, and which outputs the generated first detection signal; a control unit which controls an operation of the first sensor unit and receives the first detection signal from the first sensor unit; and a second sensor unit which detects a rotation, an inclination, or impact of the vehicle to generate a second detection signal, and which inputs the generated second detection signal to the control unit, wherein the first sensor unit and the second sensor unit are mounted on a single module.