🟦
REINFORCED CONCRETE
Mag>30µT + RSSI<-15dB
Rebar + Faraday cage. Hardest to penetrate. Common in bunkers / building basements.
NEW · 2026-05
📡 X-Ray Mode · RF Beacon Tomography
World first: connected WiFi router becomes a passive X-ray source so you can "see" through walls using RSSI/BLE/magnetometer fusion.
🟢 ONLINE
🟡 CALIBRATING
🔴 OFFLINE
How the scan works
The animation shows how the RF beam from the router passes through different materials (wall, concrete, cavity, metal) and the app auto-classifies the result into 1 of 7 verdicts.
WiFi Router (signal source)
X6 Phone (receiver)
Wall (drywall/brick)
Cavity / Corridor
Metal
RSSI —
Attenuation —
Equiv. walls —
Verdict —
7-Verdict Fusion Matrix
Each verdict combines RSSI attenuation, magnetic field deviation, and FSPL (Free-Space Path Loss) deviation analysis.
🔵
METAL OBSTACLE
High-pass Rician fading
Cables, pipes, metal doors. Produce multi-path interference with Rician distribution.
⚪
WAVEGUIDE PEAK
RSSI gain > +8dB
Ducts / corridors. Signal amplifies from wall reflections (waveguide effect).
🟧
CAVITY / WAVEGUIDE
RSSI gain +3 to +8dB
Crypts, voids, hidden spaces. Signal penetrates more easily than expected.
🟡
STRUCTURAL WALL
−6 dB / wall
Drywall, brick, plaster. Standard attenuation per physics.
🟢
OPEN SPACE
baseline ±3 dB
Open space, no obstacles. Free-space path loss dominates.
🟣
DYNAMIC OBSTACLE
IMU static + sudden drop
Person or animal passing. IMU says user is static but signal suddenly drops.
How to use it
01
Connect WiFi
Connect to any WiFi router. No special config needed — any router (2.4 or 5 GHz) becomes a passive X-ray source.
02
Calibration
Stand still for 20 samples (~10 sec). The app computes baseline RSSI for that spot. Status indicator turns 🟡.
03
Scan
Move slowly around walls. Status turns 🟢. See live verdict for each direction you point.
04
Cross-validate
Combine with Tactical AR HUD + Magnetic DNA for cross-validation. If 2-3 systems agree → ground truth.
Real-world applications
🏛
Archaeology
Detect hidden crypts in temple basements, archaeological sites, Byzantine monuments — without excavation.
🛡
Defense / Counter-IED
Recognize caches, hidden chambers, tunnel networks in urban environments. Counter-camouflage without being seen.
🏗
Structural Survey
Locate rebar, electrical cables, plumbing inside walls before remodeling/drilling.
🔍
Forensics / Police
Hidden caches in apartments, secret compartments in vehicles. With expert-witness reports.
Physics & Algorithms
Physics Laws
Inverse Square Law: requiredSharpness = 8 / r²
Inverse Cube Law: minMagThreshold = 40 / r³ (clamped 2-50µT)
Free-Space Path Loss (FSPL) deviation analysis
Calibration
Median open-air calibration with 20 samples. Filter out spikes (>2σ from median) to avoid bias from passing motion. Baseline stored for 10 min — then re-calibration required.
Sensor Fusion
Combines WiFi RSSI (if >5 APs visible), BLE RSSI (continuous monitoring), magnetometer ΔB (from phone sensor), and IMU (accelerometer for stability detection). Verdict from weighted ensemble.