Vehicle Sensor Wake-Up for Blind-Zone Intrusion Detection
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Solution Overview
Problem
Infrastructure sensors in monitored areas, such as parking lots, face blind zones due to obstructing objects, which hinder their ability to detect unauthorized persons or vehicles effectively, and existing solutions are inefficient in terms of energy usage.
Innovation Solution
A vehicle computer system that activates a low-power first sensor to detect objects in blind zones and transitions to a higher-power second sensor only when an object is detected, allowing for efficient monitoring and potential blocking of unauthorized access while minimizing energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a high-power sensor is continuously activated to monitor blind zones, then detection capability is improved, but energy consumption increases
Solution Approach 1:
The system uses a low-power sensor to periodically scan blind zones and only activates the high-power sensor when an object is detected. This periodic monitoring approach maintains detection capability while dramatically reducing energy consumption compared to continuous high-power sensor operation.
Solution Approach 2:
A low-power sensor acts as an intermediary between the infrastructure sensor and the high-power vehicle sensor. The low-power sensor first detects objects in blind zones and triggers the high-power sensor only when necessary, enabling efficient energy management while maintaining reliable detection.
2Reliability
If multiple sensors are activated simultaneously to monitor blind zones, then monitoring coverage is improved, but energy usage increases
Solution Approach 1:
The system activates sensors sequentially rather than simultaneously. The low-power sensor operates continuously to detect objects, and only when an object is detected does the system activate the high-power sensor. This sequential activation maintains comprehensive monitoring coverage while minimizing energy usage.
Solution Approach 2:
The low-power sensor performs preliminary detection in blind zones before the high-power sensor is activated. This preliminary action identifies when monitoring is actually needed, preventing unnecessary activation of the high-power sensor and reducing overall energy consumption.
3Loss of energy
If the vehicle remains in minimal power state, then energy savings are achieved, but detection of unauthorized objects is reduced
Solution Approach 1:
The vehicle computer periodically activates the low-power sensor to scan blind zones while maintaining minimal power state. When an object is detected, the vehicle transitions to an active state to activate the high-power sensor for comprehensive monitoring. This periodic scanning approach balances energy savings with maintained detection capability.
Solution Approach 2:
The low-power sensor enables the minimal power state to self-monitor for objects in blind zones without requiring full system activation. This self-service capability allows the system to maintain energy efficiency while independently detecting when transition to full power state is necessary.
Data Source
AI summary
While a vehicle is in a minimal power state, a first sensor is activated based on a location of the vehicle within a monitored area. The vehicle is transitioned to an on state based on detecting an object via data from the first sensor. Then the vehicle is operated to block an exit from the monitored area based on identifying the object as an unauthorized object.