Building BIOS Architecture

System05 shall support centralized, distributed, and hybrid BIOS deployments.

In a Centralized BIOS Model, one primary BIOS unit maintains the authoritative configuration and coordinates connected building systems.

This model may be suitable for:

small residential buildings;

limited numbers of Cartridges;

simple topology;

low availability requirements;

cost-sensitive implementation.

A centralized system shall address the risk of a single hardware failure through backup, recoverable storage, replaceable hardware, or a standby unit appropriate to the building profile.

In a Distributed BIOS Model, multiple BIOS nodes coordinate different physical zones, disciplines, or functions.

A distributed deployment may include:

building-level coordinator;

floor or zone BIOS nodes;

structural monitoring node;

utility coordination nodes;

safety-system gateways;

local Cartridge gateways.

Distributed nodes shall have unique identities and declared authority. They shall not maintain conflicting authoritative versions of the same configuration object without a defined conflict-resolution process.

In a Hybrid BIOS Model, an authoritative building-level configuration is coordinated centrally while time-sensitive, zone-specific, or resilience-critical services operate locally.

The selected deployment shall define:

authoritative configuration owner;

replicated data;

local autonomy;

synchronization requirements;

behavior during network partition;

failover procedure;

recovery authority;

conflict resolution.

No deployment shall permit two controllers to issue contradictory safety-critical authority because of an unresolved coordination failure.