EV Charging Stall Monitoring for Illegal Occupancy Detection
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Solution Overview
Problem
The increasing number of electric vehicles requires adequate charging stations, but non-electric vehicles occupying charging stalls leads to inefficiency and illegal parking, causing inconvenience to electric vehicle owners and lost profits for charging site managers.
Innovation Solution
A method to detect and prevent abusive occupancy of electric vehicle charging stalls by correlating stall occupation with charging session status, using sensors and timers to identify and report violations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If charging stalls are made available for electric vehicles, then charging accessibility is improved, but non-electric vehicles may illegally occupy these stalls causing availability to deteriorate
Solution Approach 1:
The system performs preliminary detection of stall occupation status before charging operations can begin. Sensors continuously monitor whether a stall is occupied by a non-electric vehicle or an electric vehicle not charging, and the system proactively identifies violations before they result in lost charging opportunities. This preliminary monitoring ensures that charging accessibility is maintained while preventing illegal occupation.
Solution Approach 2:
The system implements continuous feedback loops where sensors detect stall occupation status, the processing unit analyzes this data against charging session information, and the system generates alerts when violations are detected. This feedback mechanism ensures real-time monitoring and response, maintaining both charging accessibility and stall availability by immediately identifying and reporting illegal occupation.
2Reliability
If monitoring systems are added to detect violations, then stall availability is improved, but system complexity increases
Solution Approach 1:
The monitoring system is designed to serve multiple functions: it detects occupation of charging stalls, correlates this data with charging session status, identifies various types of violations (non-electric vehicles, electric vehicles not charging), and generates alerts. By consolidating these multiple detection and monitoring functions into a single integrated system, the patent achieves comprehensive stall availability monitoring without proportionally increasing system complexity.
Solution Approach 2:
The system automatically correlates stall occupation data with charging session information and autonomously identifies violations without requiring manual intervention. The processing unit self-manages the analysis of sensor data, comparison with charging status, and generation of violation alerts, reducing the need for complex external monitoring infrastructure while maintaining reliable detection capabilities.
3Productivity
If strict monitoring is implemented to prevent abuse, then charging efficiency is improved, but detection difficulty increases due to various abuse scenarios
Solution Approach 1:
The system segments the detection process into distinct analytical components: it separately tracks stall occupation status, charging session status, and vehicle type identification, then integrates these segmented data streams to identify violations. This segmentation approach allows the system to handle complex abuse scenarios by breaking down the detection task into manageable analytical steps, improving charging efficiency through comprehensive monitoring while managing detection complexity through structured analysis.
Solution Approach 2:
The system adds a temporal dimension to violation detection by monitoring the duration of stall occupation and correlating it with charging session timing. It detects violations not just based on static occupation status but by analyzing the time dimension - whether a vehicle occupies a stall without initiating charging, or remains after charging completes. This dimensional approach to detection simplifies the identification of various abuse scenarios while maintaining high charging efficiency.
Data Source
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AI summary
Method for monitoring an electric vehicle charging site comprising a plurality of charging stalls provided with parked vehicle presence sensors and a plurality of electrical outlets provided with charging management and monitoring means. The described method makes it possible to determine the charging stalls illegally occupied by non-electric vehicles or by electric vehicles that are not being charged because they have never started it or have performed and finished it but have not been removed within the allowed time limits, and to report the anomalies detected.