DEPTH-00 / MISSION
Below GPS range.
Below radio.
Threats found.
Tarysar builds autonomous sensor-effector systems for underground threat operations — tunnel networks, border crossings, mine infrastructure. Where GPS is denied, radio fails, and humans can't safely enter, our systems detect, identify, and act.
DEPTH-01 / WHAT WE BUILD
One system. Three sensing modes. Continuous underground awareness.
The Tarysar Subsurface Detection System deploys as a distributed sensor mesh — each node handles passive acoustic, ground-penetrating radar, and seismic detection simultaneously. Nodes self-organize a 915 MHz LoRa comm mesh on power-up. No GPS sync required. No base-station dependency.
Classification executes at the edge on ARM Cortex-M class processors. Pre-classified event objects reach operators in under 8 seconds from event onset. No cloud uplink. Operational at depths beyond 200 meters in tested substrates.
SENSOR-02 / CAPABILITIES
Four detection modalities. One integrated platform.
Passive Acoustic Array
freq: 2 Hz – 20 kHz / range: 200m per nodeDetects and classifies vibration signatures — footstep cadence, equipment operation, excavation activity — with on-device signal processing. False-positive reduction via multi-channel confirmation.
Ground-Penetrating Radar
depth: 3–15m / void detection threshold: 0.3m³Maps subsurface voids, tunnel geometry, and structural anomalies. Operating frequency tunable 300 MHz – 2 GHz for depth vs. resolution tradeoff depending on soil composition.
Seismic Mesh
sensitivity: 0.0005g / event classification: 12 categoriesDistributed seismic sensors detect structural displacement events — tunnel excavation, vehicle transit, subsidence. Mesh correlation distinguishes footfall from background geological activity.
Autonomous Effector
nav: dead-reckoning + SLAM / comm: 915 MHz LoRa meshNon-GPS waypoint navigation using simultaneous localization and mapping. Operates in comms-degraded environments. Autonomous classification triggers effector dispatch or operator alert within defined engagement parameters.
DEPLOY-04 / SEQUENCE
From emplacement to alert in four steps.
No satellite link. No existing infrastructure. Deployable by a two-person team in under 45 minutes per corridor.
Node Emplacement
Sensor cluster units placed at tunnel entry points, passage intersections, and perimeter positions. Magnetic wall-mount or ground-stake variants.
Mesh Formation
Nodes self-organize a 915 MHz sub-GHz comm mesh automatically. No configuration required. Adaptive topology — if one node loses power, routing adjusts.
Continuous Scanning
Passive acoustic, seismic, and active GPR sweep cycle runs continuously. Event signatures are correlated across nodes for confirmation. Battery life: 72h per node on standard pack.
Alert + Response
Autonomous classification triggers effector dispatch or encrypted operator alert within defined engagement parameters. Human-in-the-loop override available at all stages.
METRICS-05 / FIELD DATA
Performance from controlled field tests.
All figures from Tarysar internal field test data. Not independently verified. Actual performance will vary with substrate, geometry, and operating conditions.