EVSE Cable Theft Detection via Electrical Short Sensing
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Solution Overview
Problem
Electric vehicle supply equipment (EVSE) cables are frequently stolen due to their copper content, and existing systems lack an efficient method to detect and prevent such thefts, especially in unattended and secluded locations.
Innovation Solution
An electronic system that includes sensors to detect shorts between cable components, determining if the cable is being cut, and generating local and remote alerts to deter theft and notify authorities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cable theft prevention systems are installed in EVSE, then security against cable theft is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical detection systems with electrical sensing. The system uses electrical sensors to detect shorts between cable components, determining if the cable is being cut through electrical signal analysis rather than mechanical movement detection. This substitution reduces mechanical complexity while maintaining effective theft detection.
Solution Approach 2:
The patent introduces an intermediary sensing system that detects cable cutting attempts through electrical short detection. Rather than directly monitoring physical cable integrity, the system uses electrical signals as an intermediary to infer cable status. The sensor acts as an intermediary between the cable and the detection system, translating physical cutting events into detectable electrical changes.
2Speed
If detection speed is increased to detect cable cutting within seconds, then theft prevention effectiveness is improved, but measurement precision requirements increase
Solution Approach 1:
The patent implements continuous feedback monitoring of electrical signals in the cable. The system constantly senses electrical conditions and immediately processes changes, providing real-time feedback about cable integrity. When a short is detected, the system quickly determines cable cutting status and generates alerts, enabling rapid response without requiring ultra-precise measurement of the cutting event itself.
Solution Approach 2:
The patent rushes through the detection process by using straightforward electrical short detection rather than complex multi-step analysis. The system quickly senses electrical changes, determines cable status, and triggers alerts in rapid succession. This approach prioritizes speed over detailed precision, accepting that rapid detection of the general cutting event is more important than precise measurement of the cutting mechanics.
3Reliability
If alerts are generated remotely in addition to locally, then notification effectiveness is improved, but loss of time for response increases
Solution Approach 1:
The patent implements preliminary alert configuration where both local and remote notification channels are pre-established and ready for immediate use. When cable theft is detected, the system simultaneously activates pre-configured local alerts (such as on-site notifications) and pre-arranged remote alerts (such as notifications to security personnel or authorities). This preliminary preparation eliminates delays that would occur from sequential alerting or from needing to establish communication channels during the response event.
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 detects cable cutting and generates alerts to prevent theft, potentially deterring further attempts and facilitating timely response to security or maintenance personnel.
Implementation Method 1
sensing a short between at least two components of a cable in the EVSE
Data Source
AI summary
A system and method is provided for preventing cable theft in electric vehicle supply equipment (EVSE). A sensor may be configured to sense a short between at least two components of a cable in the EVSE. A processor may be configured to determine that the cable is being cut in response to the sensing. The processor may be further configured to generate an alert in response to a determination that the cable is being cut.