Vehicle Guard Camera and Bluetooth Fusion for Accurate Proximity Response
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Solution Overview
Problem
Existing vehicle security systems face challenges in accurately determining a user's proximity to the vehicle due to inconsistent Bluetooth signal reception, leading to unexpected responses such as locking doors when the user approaches instead of unlocking them, causing user frustration and inefficient data processing.
Innovation Solution
A system that combines wireless signal strength analysis with data from sensors like cameras, lidar, and radar to determine the user's proximity, modifying the vehicle state accordingly, thereby reducing unnecessary data collection and notification generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If Bluetooth signal receivers are used to determine user proximity, then wireless communication capability is improved, but signal consistency and reliability deteriorate due to obstructions and relative positions
Solution Approach 1:
The patent combines Bluetooth signal reception with optical sensor (camera) detection to determine user proximity. Multiple sensors work together to cross-validate user presence, ensuring that door locking/unlocking decisions are based on consistent data from both wireless signal strength and visual detection, thereby resolving inconsistencies caused by Bluetooth signal variations alone.
2Reliability
If guard mode activates multiple sensors to monitor environment, then security monitoring capability is improved, but power consumption and processing load increase
Solution Approach 1:
The system dynamically adjusts sensor activation based on user proximity state. When a user is detected approaching or present, the full guard mode with all sensors is deactivated or reduced in intensity to conserve power. Sensors are selectively activated only when needed for security monitoring, creating a dynamic power management strategy that balances security needs with energy conservation.
Solution Approach 2:
The guard mode operates in periodic cycles, alternating between high-monitoring states when users are absent and low-power states when users are present. This periodic activation pattern allows the system to maintain security monitoring capability while significantly reducing average power consumption during periods when full monitoring is not required.
3Measurement precision
If guard mode processes all sensor data continuously, then detection accuracy is improved, but processing time and computational resources increase
Solution Approach 1:
The system applies partial processing by selectively analyzing sensor data based on current operational context. When users are present, full guard mode processing is replaced with lighter-weight detection algorithms that process only essential data streams. This partial action approach maintains sufficient detection accuracy for safety-critical functions while dramatically reducing computational load and processing time during normal operation.
4Speed
If door locking is triggered by Bluetooth signal alone, then response speed is improved, but accuracy of user proximity determination deteriorates leading to false locking
Solution Approach 1:
The system implements feedback by continuously cross-checking Bluetooth signal data with camera detection results. When Bluetooth signals suggest user presence but visual sensors indicate otherwise, or vice versa, the system adjusts its door locking decisions based on this feedback loop. This multi-sensor feedback mechanism resolves false proximity determinations while maintaining responsive door control.
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
This approach provides a more accurate and efficient vehicle response, ensuring seamless user access and reducing power consumption by tailoring processing to the user's context, minimizing false notifications and maintaining vehicle security without excessive data processing.
Implementation Method 1
one or more Bluetooth signal receivers may be used and receive wireless signals from a user device
Implementation Method 2
A camera is activated to collect data from an environment external to the vehicle
Implementation Method 3
The sensor is at least one of a camera, a lidar sensor, a radar sensor
Implementation Method 4
The sensor is at least one of a camera, a lidar sensor, a radar sensor
Data Source
AI summary
Systems and methods are presented herein for improving the response of a vehicle to at least one person or object approaching a vehicle, and more particularly, to a vehicle that uses at least one of sensor data or Bluetooth sensor data to determine a vehicle state and corresponding vehicle responses to at least one person or object approaching a vehicle. A signal strength is of a wireless signal received from a user device is determined. An object is detected based on a sensor configured to collect data corresponding to an environment external to a vehicle. A vehicle state is determined based on the signal strength and the detected object.