EVSE Wi-Fi Credential Management for Remote Network Reconfiguration
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Solution Overview
Problem
Existing EVSE systems lack a method to manage multiple Wi-Fi SSID/password combinations, requiring manual reconfiguration whenever network changes occur, which is inefficient and labor-intensive.
Innovation Solution
A centralized system that remotely manages and distributes multiple valid Wi-Fi SSID and password credential combinations to EVSEs, allowing for seamless configuration and support of migration to new networks or physical locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If EVSE is configured with a single Wi-Fi SSID locally, then configuration is simple, but the system cannot support network changes or physical moves without manual reconfiguration
Solution Approach 1:
The system pre-configures multiple Wi-Fi SSID/password combinations in the centralized database before the EVSE needs to connect. When the EVSE is deployed to a new location, the system has already prepared alternative network credentials, allowing seamless switching without manual reconfiguration.
Solution Approach 2:
A centralized configuration management system acts as an intermediary between the EVSE and multiple Wi-Fi networks. This intermediary stores and manages multiple SSID credentials, automatically providing the appropriate network configuration to the EVSE based on location or connectivity status, eliminating the need for direct manual configuration at the EVSE.
2Reliability
If manual reconfiguration is performed for every network change, then configuration accuracy is maintained, but labor intensity and support costs increase
Solution Approach 1:
The EVSE system performs self-configuration by automatically retrieving Wi-Fi credentials from the centralized database based on its location or connectivity status. The system monitors network availability and autonomously switches between pre-configured SSIDs without requiring manual intervention, maintaining reliability while eliminating reconfiguration time.
Solution Approach 2:
The system implements feedback mechanisms where the EVSE continuously monitors Wi-Fi network availability and connectivity status. Based on this feedback, the centralized system automatically updates and pushes appropriate SSID credentials to the EVSE, ensuring reliable connectivity without manual reconfiguration efforts.
3Adaptability or versatility
If multiple Wi-Fi configurations are stored remotely in a centralized system, then adaptability to network changes is improved, but system complexity increases
Solution Approach 1:
The centralized configuration management system serves multiple functions: storing multiple SSID credentials, monitoring EVSE location, determining network availability, and automatically distributing appropriate configurations. This multi-functional approach consolidates complexity into a single universal system rather than requiring separate mechanisms for each function.
Solution Approach 2:
The system dynamically changes configuration parameters (SSID and password combinations) based on EVSE location, network availability, and operational status. Instead of maintaining a fixed single configuration, the system adapts parameters in response to changing conditions, providing network flexibility through parameter dynamicity rather than structural complexity.
Data Source
AI summary
An Electric Vehicle Supply Equipment (EVSE) configuration management system is provided for managing configuration of an EVSE. The system comprises a centralized system configured to supply locally or remotely a series of known valid credential combinations to a group of EVSEs on a sharing basis. It further comprises a first EVSE communicatively coupled to the centralized system. The first EVSE comprises a first processor and a first memory storing instructions that, when executed by the first processor, cause the first EVSE to: store in the first EVSE locally/remotely a first wireless network configuration based on a first valid credential combination associated with a first wireless network that has a first login and a first password, and store in the first EVSE remotely a second wireless network configuration based on a second valid credential combination associated with a second wireless network that has a second login and a second password.