Wristband PRO
from $65
Wristband PRO is an industrial-grade wristband device for personnel tracking using UWB and BLE RTLS. Two-way alerting and sensor telemetry features over UWB and BLE are included in addition to location tracking.
The device also includes Bosch 6-axis IMU, barometer and the power supply over magnetic connector to stay compliant with IP67 requirements. Wristband PRO also has a front panel with two LEDs and a programmable button, which is used for alerting by default.
The default usage scenarios for Wristband PRO include personnel tracking in various industrial environments, such as factories, warehouses and non-ATEX mining areas. For example:
- 2D-3D position tracking for workers in steel factories.
- Location-enabled alerting scenarios in emergency situations for personnel.
- Location tagging for sensor data, which is collected by service technicians - for example: location tagging for pyrometers, which measure temperature at factory ovens.
- Native integration with the Collision Avoidance and Proximity Detection Subsystem.
** this web page contains partial information only. Please refer to the datasheet for broader and deeper information about Wristband PRO.
PCB Components
- BLE chipset and antenna: Nordic nRF52840, SMD chip antenna
- UWB chipset and antenna: Qorvo/Decawave DW1000, SMD chip antenna
- 6-axis IMU (accelerometer, gyroscope): Bosch BMI270
- Barometer: Bosch BMP390
- Two options for power supply:
- Direct power supply over the magnetic connector – no accumulator is needed
- Rechargeable 3.7V Li-Po accumulator (recharging via magnetic connector)
- Connectors:
- Protected magnetic connector
- Connector for NFC antenna
- Internal UART connector for sensors
- Internal connector for Li-Po / Li-Ion accumulator
RTLS Technologies
- UWB for 1D-3D RTLS scenarios based on TWR and our custom algorithm with 5-10 cm accuracy.
- Tunnel UWB/BLE RTLS algorithms, which were developed specifically for underground mines.
- Custom UWB TDoA algorithm for highly scalable and low-power 2D RTLS scenarios, which need 50-60 cm accuracy for RTLS.
- BLE zoning based on RSSI and Kalman filtering - suitable for room-level tracking scenarios.
- Height tracking based on the embedded barometer - suitable for floor/level detection with less RTLS anchors.
- Sensor telemetry for RTLS tags over UWB or BLE payloads - accelerometer, gyroscope, temperature.
Button and LED Indicators
The front panel of Wristband PRO includes two LED indicators and the programmable button. The panel can be removed upon request.
Wristband LITE
Wristband LITE is a reduced version for location tracking and two-way alerting scenarios based on BLE and IMU only.
MQTT Protocol for Data and Config
Sample MQTT messages for UWB RTLS data – please check the datasheet for more details
UWB TDoA Message
{
"MessageID": 8011593,
"MessageType": 0,
"LocatorID": "UWBANCH0001",
"TagID": "f2:e8:b8:50:63:a1",
"DeviceType": "uwb2",
"Timestamp_ref_1": 1071423525934,
"TimestampTDoA": 1072283984540,
"Timestamp_ref_2": 1081407487022,
"Counter": 0,
"Sensor_Own_Pressure": 101325,
"Sensor_Own_Temperature": 19.7,
"Sensor_Tag_Pressure": 101321,
"Sensor_Tag_Temperature": 19.5
"Sensor_Tag_AccX": 2205,
"Sensor_Tag_AccY": 1510,
"Sensor_Tag_AccZ": 14914,
"Sensor_Tag_GyrX": 392,
"Sensor_Tag_GyrY": -910,
"Sensor_Tag_GyrZ": -237,
"Timestamp": 1107511,
}
UWB TWR Message
{
"MessageID": 542201,,
"MessageType": 0,
"LocatorID": "UWBANCH0001",
"TagID": "f2:e8:b8:50:63:a1",
"DeviceType": "uwb",
“Distance”: 2438,
"Sensor_Own_Pressure": 101322,
"Sensor_Own_Temperature": 19.2,
"Sensor_Tag_Pressure": 101321,
"Sensor_Tag_Temperature": 19.5
"Sensor_Tag_AccX": 2205,
"Sensor_Tag_AccY": 1510,
"Sensor_Tag_AccZ": 14914,
"Sensor_Tag_GyrX": 392,
"Sensor_Tag_GyrY": -910,
"Sensor_Tag_GyrZ": -237,
"Timestamp": 982511,
}