Sentrax RTLS Technology
Smart BLE Indoor Visibility for High-Importance Environments
Sentrax RTLS Technology
Sentrax provides an RTLS ecosystem that transforms raw location and sensor data into intelligent operational workflows. Built on a flexible architecture, it supports BLE RSSI, BLE AoA, and hybrid positioning methods to ensure the right level of indoor location accuracy depending on your applications.
Technology Overview
A unified, end-to-end architecture designed for real-time visibility, intelligence, and scale. The Sentrax RTLS ecosystem combines purpose-built hardware with intelligent software and middleware to deliver a single, reliable source of location and operational truth across complex environments
NODIX BiLink Anchors
BiLink anchors continuously scan and validate tag presence within a defined space, transmitting only verified events to gateways. This reduces signal overlap, enables reliable room-level accuracy, and delivers real-time visibility with minimal infrastructure.
PINIX Tags & Beacons
Rugged, low-power, multi-sensor devices designed for people, assets, and equipment. PINIX tags transmit BLE data packets and sensor data to the locator, enabling real-time tracking and monitoring.
ZENIX Locators & Gateways
ZENIX gateways continuously scan nearby BLE beacons and fetch environmental data, acting as intelligent location anchors that ensure precise indoor positioning, system reliability, and scalable coverage.
SOLIX Positioning Engine
SOLIX processes raw signal data using advanced, proprietary algorithms to calculate highly accurate X-Y positioning, contextual events, and movement patterns—turning location data into actionable insights in real time.
APIs Integration
Built for openness and interoperability, Sentrax supports industry-standard REST APIs and WebSocket integration to enable real-time data streaming and seamless system-to-system communication with ERP, MES, WMS, BMS, and custom enterprise applications.
Sentrax Device Manager (SDM)
SDM enables remote tags/beacons configuration, firmware management, bulk tags scan, ensuring optimal system performance and reduced operational downtime.
How It Works?
Sentrax delivers high-performance BLE RTLS for scalable location tracking, industry automation, and real-time analytics.
BLE BiLink Technology
Accuracy: 3 -5 meters accurate
BiLink introduces an advanced bi-directional BLE communication layer within the Sentrax RTLS ecosystem, extending beyond traditional architectures that rely solely on centralized scanners.
In conventional deployments, BLE tags continuously broadcast signals that are captured by fixed gateways, where all positioning logic is processed centrally. While effective for basic tracking, this often leads to signal overlap, inaccurate zone detection, and increased infrastructure requirements.
BiLink redefines this approach.
As a compact, battery-powered device, it enables anchors to operate as both scanners and broadcasters, delivering reliable room-level accuracy. This approach reduces dependence on dense infrastructure and complex cabling, while simplifying deployment and enhancing overall system efficiency.
How BiLink Works?
Local BLE Scanning & Detection
BiLink anchors continuously scan for nearby BLE tags, capturing key parameters such as RSSI, device identity.
Bi-directional Communication
BiLink enables two-way communication, anchors not only scan tag signals but also broadcast, improving detection certainty and enabling better interaction between devices.
Intelligent Data Filtering & Validation
Data is processed at the anchor level using RSSI filtering and structured packet recognition, ensuring only validated, relevant tag events are forwarded.
Seamless Integration with SOLIX Platform
Verified data is processed by the SOLIX engine to deliver precise, real-time location insights, ensuring accurate tracking, reliable room-level presence, and smooth zone transitions.
BLE RSSI RTLS
Accuracy: 3 -5 meters accurate
BLE RSSI–based tracking estimates the location of tags by measuring the signal strength received at multiple fixed gateways. Using distance calculations and trilateration, the system determines the tag’s approximate position.
It works in both indoor and outdoor environments, making it ideal for hospitals, smart buildings campuses, and industrial yards where GPS is limited or unavailable.
BLE AoA RTLS
Accuracy: Sub-meter accurate
BLE AoA (Angle of Arrival)–based tracking is a high-precision Bluetooth Low Energy positioning technique that determines the location of a tag by calculating the angle at which BLE signals arrive at multi-antenna locators. By combining angle measurements from multiple anchors, the system uses geometric triangulation to compute the exact position of assets or people in real time. BLE AoA is primarily optimized for indoor tracking, where high accuracy and deterministic positioning are required. It is ideal for complex environments such as manufacturing floors, warehouses and factories. With appropriate infrastructure, AoA can also be applied in controlled outdoor or semi-outdoor industrial areas.
How Hybrid RTLS Works?
Sentrax Hybrid RTLS is a combination of BLE proximity tracking (RSSI) with high-precision Angle of Arrival (AoA) positioning, giving both broad coverage and sub-meter accuracy in a single, flexible, cost-effective system.
Bluetooth RSSI (Proximity)
Provides real-time location and proximity visibility for assets, people, and equipment, enabling safer operations and faster, data driven decisions.
Bluetooth AoA (Precision)
Utilizes multi-antenna arrays to measure the exact phase difference of incoming signals. By calculating the specific geometric vector of a tag, it provides highly accurate real-time spatial data.
Hybrid Mode
Hybrid Deployment leverages the strengths of both technologies within a single ecosystem. It allows you to deploy high precision AoA in critical hotspots while utilizing efficient RSSI tracking in transitional areas.
Technology Comparison
| Feature | BLE RSSI (Proximity Tracking) | BLE AoA (Directional Tracking) |
|---|---|---|
| Core Principle | Measures Signal Strength; signal weakens with distance. | Measures Signal Phase & Angle; uses multi-antenna arrays for direction findings. |
| Bluetooth Version | Bluetooth 5.1 | Bluetooth 5.1 and above |
| Positioning Accuracy | 3–5 Meters (Zone or room-level) | Sub-meter Accuracy (High-precision) |
| Infrastructure Cost | Low (Uses standard BLE gateways/beacons) | Moderate (Requires specialized multi-antenna locators) |
| Deployment Complexity | Fast & Flexible; minimal calibration needed. | Structured; requires planned layouts and calibration. |
| Primary Use Cases | Presence detection, large-scale asset tracking, workflow triggers. | Precise tool/asset tracking |
| Typical Industries | Healthcare, smart factories, labs, and rooms | Manufacturing, logistics, and warehouses |
How It Works?
Sentrax RTLS Middleware
Sentrax RTLS Middleware is an API-first technology layer that manages positioning, sensing, and device intelligence-bridging RTLS hardware with enterprise applications.
Positioning Engine
Real-time computation using ASSI and AoA models.
Rule Engine
Spatial logic, geofencing and event processing.
Sensor Service
Processes environmental and telemetry data.
Device Manager
Configuration, health monitoring and provisioning.
External Integration Interfaces
REST & WebSocket APIs for cloud or on-premises.
Data & Event Coverage
- Real-time and historical positioning data
- Zone, room, and geofence events
- Environmental and telemetry data
- Device health and operational status
- Alerts, rules, and exception events
RTLS & IoT Engines
RTLS intelligence is exposed as backend engines rather than UI-locked features:
Environmental Sensing
Beyond location, Sentrax technologies enable comprehensive environmental monitoring integrated directly into RTLS data stream.
Temperature
Humidity
Air Quality
Motion/Vibration
Pressure
Experience Next-Level RTLS Technology
Our BLE RSSI, AoA, and hybrid RTLS solutions deliver real-time asset tracking, personnel positioning, and precise operational insights with unmatched accuracy and flexibility.