Saha-Edge’s edge-AI platform can facilitate real-time, secure firmware updates for individual EV chargers using over-the-air (OTA) security protocols without requiring cloud connectivity. The system maintains ISO/IEC 15118 compliance by leveraging local cryptographic validation and offline authentication mechanisms that validate firmware integrity before installation.
How Saha-Edge enables offline firmware updates
The platform employs a distributed security model where each charger maintains a local certificate store and cryptographic keys. When a firmware update is initiated, Saha-Edge validates the update signature locally using stored certificates. This process ensures that only authenticated firmware can be installed, even without an active internet connection.
Updates are staged locally and executed in a secure boot environment. The system uses a rollback mechanism to ensure that if an update fails or is compromised, the charger can revert to a known good state. This capability is especially valuable in remote or low-connectivity locations where traditional cloud-based update mechanisms are impractical.
What this means for charging network operators
For charge point operators managing large fleets across diverse environments, this offline capability reduces operational overhead and improves reliability. Operators can schedule updates during low-usage periods, knowing that chargers will securely apply updates even if network connectivity is intermittent.
It also supports compliance with safety and security standards that require verification of firmware integrity. The local validation process ensures that all updates meet regulatory requirements, including those related to ISO/IEC 15118, which governs communication between EVs and charging stations.
Related Reading
For more on related topics, see: Saha-Edge AI Load Forecasting Without Cloud.
Further reading: Tecell CMS – EV Roaming Hub & OCPI Platform | India & Global
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