Vehicle Camera Power Management via GPS and Fixed Object Detection
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Solution Overview
Problem
Conventional Drive Video Record Systems (DVRS) fail to efficiently manage power consumption by not turning off cameras in environments where their operation is unnecessary, leading to potential battery drain and reduced operational efficiency in parking modes.
Innovation Solution
A vehicle system that utilizes GPS, cameras, and a controller to determine parking locations and the presence of fixed objects, adjusting camera operation based on state of charge (SOC) and predetermined times to minimize power usage, while ensuring cameras remain operational for potential external impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the camera operates continuously in parking mode, then the system can detect external impacts and ensure security, but power consumption increases and battery life decreases
Solution Approach 1:
The camera operates periodically rather than continuously. The controller turns the camera on for predetermined periods at intervals during parking mode, enabling security monitoring while significantly reducing power consumption compared to continuous operation.
Solution Approach 2:
The camera operation mode dynamically adjusts based on detected conditions. When a fixed object is detected, the camera switches to periodic operation; when no fixed object is detected, it may operate continuously or at different intervals, optimizing the balance between security and power consumption.
2Use of energy by moving object
If the camera is turned off in parking mode, then power consumption is reduced, but the system cannot respond to external impacts or security threats
Solution Approach 1:
The camera is activated at predetermined intervals during parking mode to perform security checks. This periodic operation maintains the ability to detect external impacts while keeping power consumption low during extended parking periods.
Solution Approach 2:
The gyro sensor provides feedback about external impacts to the controller. When an impact is detected, the controller immediately activates the camera to record the event, ensuring security monitoring capability is maintained without requiring continuous camera operation.
3Measurement precision
If the camera operates continuously to detect fixed objects, then detection accuracy is maintained, but battery drain increases
Solution Approach 1:
The camera performs fixed object detection at periodic intervals rather than continuously. This approach maintains adequate detection accuracy for identifying permanent structures while significantly reducing energy loss compared to continuous operation.
Solution Approach 2:
The system performs preliminary detection of fixed objects during initial parking camera operation. Once fixed objects are identified, the camera can operate with reduced frequency since the detection task has been completed, reducing subsequent energy consumption.
Data Source
AI summary
A vehicle and a controlling method of the vehicle are provided. The vehicle may include: a battery; a plurality of cameras powered by the battery; a GPS sensor configured to detect a GPS signal; a storage configured to store map information; and a controller configured to determine a parking location based on the map information and the GPS signal, determine a fixed object based on images captured by the plurality of cameras and deactivate at least one camera of the plurality of cameras based on the parking location, the fixed object and a state of charge (SOC) of the battery.