Electric Road Power Segment Activation for Safe Vehicle Billing
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Solution Overview
Problem
Electric road systems face challenges in providing electrical safety, especially in urban areas, and accurate billing for electricity usage, as they require efficient activation and deactivation of power segments to prevent unauthorized access and ensure correct payment.
Innovation Solution
A method and system for an electric road system that uses identification data from vehicles to activate and deactivate power segments through a base station, employing short-range and mid-range radio communication to associate and transmit activation keys, allowing for individual power delivery and monitoring, ensuring safety and accurate billing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If power segments are continuously activated to ensure power delivery, then power availability is improved, but electrical safety deteriorates due to increased risk of electrocution
Solution Approach 1:
The system performs preliminary actions by transmitting activation keys to segments in advance before the vehicle arrives. The base station identifies the approaching vehicle and pre-activates the necessary power segments, so that when the vehicle reaches the segment, power delivery can immediately begin without continuous activation of all segments along the track.
Solution Approach 2:
The electric road system is divided into multiple discrete power segments along the track. Each segment can be independently activated or deactivated based on vehicle position and requirements. This segmentation allows the system to activate only the specific segment needed for the current vehicle, rather than continuously activating the entire track, thereby maintaining power availability while improving electrical safety.
2Productivity
If activation keys are transmitted to multiple segments in advance, then power delivery readiness is improved, but energy consumption increases
Solution Approach 1:
The system applies local quality by transmitting activation keys selectively to only those segments that are predicted to be needed based on the vehicle's current position and trajectory. Rather than uniformly activating all segments along the entire track, the base station calculates which specific segments will require power delivery and transmits activation keys only to those localized segments, optimizing energy consumption while maintaining power delivery readiness.
3Ease of operation
If identification and activation procedures are simplified for quick vehicle activation, then ease of operation is improved, but security deteriorates due to potential unauthorized access
Solution Approach 1:
The system uses an intermediary approach by introducing a cryptographic key verification mechanism. The base station transmits activation keys to segments, and when a vehicle requests activation, the segment verifies the vehicle's identification key against the stored activation key. This intermediary verification process maintains security while enabling quick activation, as the cryptographic comparison can be performed rapidly without complex manual procedures.
Solution Approach 2:
The system uses copying by creating a cryptographic relationship between the activation key stored in the segment and the identification key in the vehicle. Rather than requiring complex authentication protocols, the system copies the essential authorization information through cryptographic key pairs, allowing fast verification while maintaining security through the mathematical properties of the cryptographic system.
Data Source
AI summary
The present invention relates to a method for activating a segment for enabling electrical power delivery to vehicles, the segment being one of a plurality of segments consecutively arranged along a single track line of an electric road system that further comprises a base station, the method comprising: receiving, at the base station, identification data transmitted from a vehicle, the identification data identifying the vehicle; associating an activation key with the identification data with each other; transmitting the activation key from the base station to the segment; receiving, at the segment and via short range radio communication, an activation request sent from the vehicle, wherein the activation request comprises an identification key associated with the identification data; confirming, at the segment, that the received identification key is associated with the received activation key; and upon positive confirmation, activating the segment for enabling power delivery to the vehicle.