Cobra
fd014b2a38
Implements DevTrack #530: Person Presence Intelligence daemon for BigBrother drop implant. Core components: - presence_daemon.py: 4 sensor threads (probe, ARP, DHCP, BLE) with exponential decay - presence_schema.sql: SQLite schema for persons, devices, signals, occupancy log - install.sh: Deployment script (copies to /opt/sensor/, creates systemd service) - AUDIT_impl.md: Implementation notes, limitations, audit checklist Features: - Exponential decay model (lambda=0.08/min) for signal certainty - Presence anchor (45-min hold time prevents false VACANT) - Person state machine: UNKNOWN → PRESENT ↔ ABSENT - Multi-signal fusion: max + 0.08×min for device aggregate - Thread-safe in-memory state with SQLite persistence - Matrix webhook alerting (if configured) - HTTP status endpoint on 127.0.0.1:9191 - Graceful BLE degrade if bleak unavailable - No tool fingerprints in output or service names
34 lines
933 B
SQL
34 lines
933 B
SQL
CREATE TABLE IF NOT EXISTS persons (
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id INTEGER PRIMARY KEY,
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name TEXT NOT NULL,
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notes TEXT
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);
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CREATE TABLE IF NOT EXISTS devices (
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mac TEXT PRIMARY KEY,
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person_id INTEGER REFERENCES persons(id),
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label TEXT,
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added_at REAL DEFAULT (unixepoch())
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);
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CREATE TABLE IF NOT EXISTS signals (
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id INTEGER PRIMARY KEY,
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mac TEXT NOT NULL,
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signal_type TEXT NOT NULL,
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certainty REAL NOT NULL,
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ts REAL DEFAULT (unixepoch())
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);
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CREATE TABLE IF NOT EXISTS occupancy_log (
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id INTEGER PRIMARY KEY,
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person_id INTEGER REFERENCES persons(id),
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old_status TEXT,
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new_status TEXT NOT NULL,
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ts REAL DEFAULT (unixepoch())
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);
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CREATE INDEX IF NOT EXISTS idx_signals_mac ON signals(mac);
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CREATE INDEX IF NOT EXISTS idx_signals_ts ON signals(ts);
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CREATE INDEX IF NOT EXISTS idx_occupancy_person ON occupancy_log(person_id);
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CREATE INDEX IF NOT EXISTS idx_devices_person ON devices(person_id);
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