U03 — UWB High-Precision Positioning Badge (Plaspy compatible)
The U03 UWB High-Precision Positioning Badge is a professional indoor positioning tag engineered for centimetre-level location and real-time personnel tracking. Plaspy compatible, the U03 combines ultra-wideband ranging, a built-in RFID module and bidirectional messaging to deliver reliable location, safety and telemetry data for managed facilities such as factories, hospitals, schools and correctional sites.
Designed as a low-profile badge with IP68 waterproofing and long standby life, the U03 is optimized for continuous monitoring, attendance, access control and emergency response. Its on-device SOS touch key, vibration alerts and motion sensor make it a compact, safety-focused tracking device that integrates into Plaspy deployments for real-time tracking, historical playback, geofencing and roll-call workflows.
Key Highlights
- Centimetre-level indoor positioning using UWB ranging — precise real-time tracking where GPS cannot reach.
- Bidirectional communication via built-in RFID (2.4 GHz) and UWB broadcasts (3.75–4.25 GHz) for push notifications and status uploads.
- Long standby life from an internal 550 mAh rechargeable battery — up to 90 days typical standby and quick ~2-hour charge via contact pads.
- Safety-first features: touch SOS button, vibration alerts, motion sensor for activity monitoring and low-battery alarms below 20%.
- Rugged, wearable form factor with IP68 waterproofing and tamper/anti-detach detection options for secure deployments.
- Remote firmware upgrade support to keep devices current with Plaspy-managed fleets of badges.
How It Works with Plaspy
The U03 integrates with Plaspy-compatible UWB anchor networks and positioning engines to provide continuous, accurate indoor location and device telemetry. Anchors receive the badge’s UWB broadcasts and RFID exchanges; Plaspy ingests those signals to compute position fixes, generate geofence events and distribute alerts. Bidirectional messaging enables Plaspy to send push notifications to the badge and receive status updates (battery, motion, tamper) in real time.
- Real-time location and telemetry updates sent to Plaspy for live monitoring and mapping.
- SOS/touch-key emergency alerts routed immediately to Plaspy dashboards and notification channels.
- Low-battery and tamper/anti-detach alerts for proactive maintenance and security.
- Vibration notifications and system push messages to notify wearers of events or instructions.
- Optional NFC and RFID interactions to support access control, roll-call and inspection workflows.
Technical Overview
| Connectivity | UWB (3.75–4.25 GHz) broadcasts; built-in RFID communication at 2.4 GHz |
|---|---|
| Positioning | Centimetre-level UWB positioning when used with multi-anchor network and positioning engine (up to 10 cm accuracy reported in supported deployments) |
| Coverage | Up to 80 meters in unobstructed environments (anchor-dependent) |
| Power & Battery | Internal 550 mAh rechargeable battery; typical standby up to 90 days; low-battery alarm at <20% |
| Charging | Contact pads for data/charging interface; typical full charge time ~2 hours |
| Interfaces & Sensors | Touch SOS key, motion sensor (activity), vibration motor for alerts, tamper/anti-detach detection (with conductive loop options), optional NFC |
| Antenna | Internal omnidirectional antenna |
| Durability | IP68-rated waterproofing |
| Remote Management | Remote firmware upgrade support (FOTA) |
| Form Factor | Badge 108 × 60 × 8 mm; approx. 80 g |
Use Cases
- Real-time personnel tracking and safety monitoring on factory floors and warehouses — immediate SOS alerts and location for emergency response.
- Attendance and roll-call automation in schools, hospitals or secure facilities using badge detection and position logs.
- Access control and inspections — RFID/NFC interactions for door access, zone entry logging and inspection verification.
- Managed facility security in prisons or sensitive sites — tamper detection, geofence alerts and historical track playback for investigations.
- Healthcare staff and patient monitoring — motion-based activity telemetry and rapid staff location during critical events.
Why Choose This Tracker with Plaspy
While the U03 is not a GPS tracker, it fills the crucial indoor tracking gap with ultra-wideband precision and Plaspy compatibility. For organizations that need reliable, centimetre-level real-time tracking, the U03 delivers accurate position fixes, robust telemetry and user-facing safety features that integrate seamlessly into Plaspy’s mapping, alerting and reporting workflows. The badge’s long battery life, IP68 protection and tamper detection lower maintenance overhead and improve operational uptime.
Deploying the U03 within a Plaspy-managed UWB network gives teams actionable location intelligence, fast incident response through SOS and vibration alerts, and secure, auditable access/roll-call records. It’s a practical choice for facilities that require high-precision indoor tracking, simplified device lifecycle management (remote firmware upgrades) and a safety-first wearable device that complements GPS trackers and Bluetooth sensors in hybrid location solutions.
Set Up U03
To set the tracker send the following commands by SMS messages, the sample setup the device password is RRWdIz, this password is the default
- Restore factory settings
beginRRWdIz - Set the operator APN
apnRRWdIz {{apn}} - Set the APN username
apnuserRRWdIz {{apnu}} - Set the APN password
apnpasswdRRWdIz {{apnp}} - Set the GPRS server
adminipRRWdIz 54.85.159.138 8888 - Set the GPRS mode
gprsmodeRRWdIz - Set the update interval 60 seconds
t060s***nRRWdIz