Tiltmeter Event Detection

The Worldsensing Tiltmeter Event Detection is a smart, 3-axis wireless tiltmeter designed to identify ground movements with high precision and low noise.

Featuring edge processing capabilities, it detects ground movements in less than 2 seconds, making it a key component of Worldsensing’s Early Warning System to monitor geohazard-prone areas. Designed for long-term, unattended operations, it supports up to 3.5 years of battery life and a communication range of up to 8 km via LoRa networks.

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Datasheet

Product information:

Key features

Edge processing: Embedded algorithm increases the data frequency when predefined thresholds are reached,ensuring timely insights when anomalies occur
Minimum latency: 2-second latency for the first 10 simultaneous events
Configurable thresholds using the Worldsensing App or remotely via CMT Edge or CMT Cloud
Third-party connectivity readily available via MQTT, API, and FTP transfer protocols

Applications

Geospatial Monitoring
Ground movement monitoring in mining, tunneling, or construction projects
Geohazard early warning systems for landslides, slope failures, and embankment instability

Variants

LS-G6-TIL90-XE with external antenna
LS-G6-TIL90-IE with internal antenna

Technical specifications

Sensor type: 3-axis MEMS accelerometer
Range: ±90º
Power source: 2 x 3.6 V C-size replaceable batteries
Data transmission: LoRa radio communications (ISM sub GHz)
Operating temperature: -40º C to 80º C
Weather protection: IP68
System configuration: Locally via Worldsensing App or remotely using CMT Edge on single-net deployments and CMT Cloud on multi-net deployments

Normal State Operational Mode

Description: Continuous sampling at 3.9 Hz. Wireless communication to the gateway via LoRa network at a configurable reporting period ranging from 30 min to 24 h
Accuracy (±4º): ±0.005
Repeatability: <0.0003°
Offset temperature dependency: ± 0.002°/°C

Threshold breach

Description: When a reading in continuous sampling lays outside the threshold, the alert message is sent in real time. It also triggers the alert state that changes the data transmission according to the set reporting period for the alert state
Communication latency: 2 s for 10 simultaneous alerts 5 s for 25 simultaneous alerts
Repeatability (continuous sampling): <0.001°
Peak-to-peak noise: <0.006°