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Device overview

Locator One is a fully autonomous, highly accurate, 3D Monitoring Solution designed for both GEO- and structure & building monitoring.

Locator One Specifications

GNSS

GPS, GLONASS, Galileo, BeiDou, and QZSS.
L1C/A, L1OF, L2C, L2OF, B1I, B2I, E1B/C, and E5b multi-band (186 channels).

Precision GNSS
Post-Processed Static (PPS)

Horizontal precision: 2 mm + 0.5 ppm (1 sigma)1
Vertical precision: 4 mm + 0.5 ppm (1 sigma)1
Long-term trend monitoring precision: Approximately 1 mm 2

Precision Radar

Precision distance: 1 mm (1 sigma)3

Connectivity

LTE-M

Power Source

Supercapacitor (4.2 V, air transport safe)

Energy Harvesting

4W PU solar panel

Charging cable

< 8 hours; Daylight: 3–21 days 4

Other Digital Sensors

Radar sensor and temperature

Operating Conditions

-20 to +60 °C

  1. Precision is determined under optimal conditions with a reference station within 4 km. ↩︎
  2. Long-term trend monitoring precision: Based on daily averages of at least 12 measurements under consistent climatic (temperature) conditions. ↩︎
  3. Radar precision: Distance measured on a flat surface with a maximum range of 4 meters. The usable range is between 0.50 and 4.00 meters. ↩︎
  4. Charging with daylight depends on factors such as sunlight intensity and the mounting direction of the Locator One. ↩︎

Measurement Protocol Steps

  1. Start at the Scheduled Time
    The Locator One begins its operations at the pre-set measurement time defined in the project settings.
  2. Perform Internal Health Check
    The device runs a quick diagnostic to ensure all systems are functioning correctly.
  3. Perform GNSS Measurement (if set)
    The Locator One performs a Global Navigation Satellite System (GNSS) measurement to capture precise location and height data.
  4. Perform Radar Measurement (if set)
    The device activates its radar to collect additional data, such as distance and ground level measurements.
  5. Connect to LTE-M and Cloud
    The device establishes a connection to the LTE-M network and communicates with the cloud to deliver its measurements.
  6. Deliver Data and Confirm
    The Locator One transmits the collected data to the cloud and waits for confirmation:
    • If an error occurs, the device retries delivery up to a maximum of two attempts, depending on the settings.
  7. Check for Firmware Updates
    The device verifies if a new firmware version is available:
    • If an update is found, it is downloaded and installed before the next cycle.
  8. Check for New Measurement Settings
    The Locator One checks for updated project settings:
    • If new settings are detected, they are adopted for the next measurement cycle.
  9. Enter Deep Sleep Mode
    Once all tasks are completed, the device enters deep sleep mode to conserve energy until the next scheduled measurement time.

Operational Notes

  • Energy Efficiency
    Deep sleep mode ensures the device uses minimal power, prolonging its operational lifespan and enabling long-term, autonomous monitoring.
  • Measurement Delays
    Changes in settings, such as measurement frequency, are not immediately reflected. The device will only adopt them at the next scheduled time. Depending on the settings, this delay can be up to 24 hours.
  • Automatic Error Handling
    The device automatically retries data delivery in case of network errors and logs any encountered issues, such as network failures, which can be reviewed in the cloud dashboard for troubleshooting.