Sensor fusion technology
We combine multiple technologies to build the most precise, accessible indoor navigation system on the market
Magnetic geolocation (MagneticField)
Each building’s unique magnetic field acts as a “digital fingerprint.” Concrete and steel structures create a distinctive pattern that works like an invisible bar code for accurate positioning without GPS.
Wi-Fi RTT & Bluetooth LE
Wi-Fi Round-Trip Time (RTT) measures round-trip time to centimeter accuracy. Bluetooth Low Energy (BLE) beacons add reference points for real-time triangulation.
Inertial sensor fusion (IMU)
Inertial measurement combines accelerometer (motion), gyroscope (rotation), magnetometer (heading), and barometer (altitude/floor) for reliable dead reckoning.
Computer vision & AR
Computer vision locates salient features (SLAM), signs, QR codes, and AR markers to correct position and support augmented navigation in real time.
Last-meter accuracy (99%)
Our patented sensor fusion ensures 99% accuracy within 1–2 meters, which is essential for safe navigation for blind people. While GPS works outdoors, our system excels indoors where independence is most challenging. Sub-100ms latency means real-time response.
Accessibility features
Each feature is designed for the real needs of people who are blind or have low vision
Multimodal sensor fusion (6 layers)
A patented fusion stack that combines magnetic positioning, Wi-Fi RTT, Bluetooth LE, IMU (accelerometer + gyroscope + barometer), computer vision, and GNSS. A particle filter fuses all sensors in parallel for 99% accuracy.
Real-time positioning (sub-100ms)
Under 100ms latency with continuous position updates. On-device edge plus cloud for peak performance. Dead reckoning holds accuracy when external signals drop.
Minimal infrastructure (Magnetic Fingerprinting)
Patented magnetic fingerprinting cuts beacon needs in 80% of cases. Every concrete and steel structure yields a unique magnetic pattern that acts as an invisible indoor bar code.
Adaptive machine learning
Neural networks trained in TensorFlow Lite learn movement patterns, user preferences, and environment traits. The system keeps improving on-device and via federated learning.
3D spatial audio (synthetic echolocation)
Binaural audio turns distance and direction into spatialized sound. HRTF creates a synthetic “sonar” so blind users can “see” through 360° sound fields.
Computer vision + SLAM
SLAM locates features, signs, QR codes, and obstacles in real time. YOLO and MobileNet models run on-device at 30 FPS.
Benefits for users
Turning challenges into autonomy and independence
Autonomous turn-by-turn guidance
Step-by-step guidance with 3D spatialized audio, so people who are blind can navigate complex venues—malls, airports, hospitals, and campuses—with confidence.
Real-time obstacle detection
Fuses LiDAR, depth camera, and ultrasonic sensors to flag obstacles—temporary items, people, steps, and surface changes—on the path.
Smart points of interest
A georeferenced database with thousands of POIs: accessible restrooms, elevators, escalators, emergency exits, service counters, ATMs, and more.
Accessible pathfinding
A modified A* that optimizes for accessibility: avoids stairs, prefers elevators, considers corridor width, tactile paths, and crossing time.
How mapping works
End to end, from capture to go-live for users
Data capture
We walk the site collecting magnetic, Wi-Fi, and Bluetooth data to build a rich digital map.
AI processing
AI models extract unique patterns and build an accurate model of the environment.
Accessible validation
Blind and low-vision users test the map so routes are truly accessible and safe.
Continuous updates
The system keeps learning, improving accuracy and adapting to layout changes.
Mapped environments
We bring accessibility to the most challenging spaces
Shopping centers
Move between stores, find accessible restrooms, locate elevators, and get tailored offers.
Airports
Find your gate, locate services, and get to the gate on time with full confidence.
Hospitals
Locate clinics, labs, pharmacies, and front desks in complex care settings.
Universities
Find classrooms, libraries, dining halls, and get around campus independently.