PMIOT-FISSUR - Autonomous IoT crackmeter - Remote crack monitoring

Overview

The PMIOT-FISSUR is a connected and configurable solution for remote monitoring of cracks, joints and movements in buildings, civil engineering structures and industrial facilities.

A displacement sensor automatically measures the opening or closing of the monitored area. Data is recorded and then transmitted to PMI-CloudVIEW or to the customer's server to review history, track movement trends and set alert thresholds.

The solution can be adapted to the measuring stroke, the number of points to instrument, the available network and site constraints.

Data transmission:

The module The connected datalogger - PMIOT-STAND ensures automatic transmission of measurements to a remote server via NB-IoT or 4G networks, integrated as dual connectivity to guarantee communication continuity, even in areas with variable coverage. Data is sent using the MQTT protocol, ensuring reliable, secure and energy-efficient transmission, compatible with the PM Instrumentation Cloud platform or third-party platforms.

Each record is also saved locally on a microSD card (32 GB) to ensure complete redundancy in case of temporary network loss. This dual architecture: local storage + cellular communication, enables real-time tracking and easy integration into any connected structural or geotechnical monitoring system.

Configure your PMIOT-FISSUR

1. Choose your measurement

The stroke and sensor model are defined according to the expected displacement, the environment and the required accuracy.

2. Choose your acquisition

Make your configuration with the datasheet: here

3. Configuration example

PMIOT-FISSUR-POT-0100-1CH-LTE

Corresponds to:

• potentiometric sensor
• total stroke 100 mm
• 1 measurement point
• 4G/LTE transmission

Configurations can be adapted to each project, including with multiple sensors and different technologies.

Applications - Connected structural and geotechnical monitoring

• Monitoring of civil engineering structures and bridges: Continuous tracking of crack evolution on bridge decks, piers and abutments. Early detection of differential movements to anticipate maintenance operations.

• Diagnosis of buildings and historical monuments: Non-intrusive instrumentation for monitoring cracks in façades, load-bearing walls and old masonry structures. Ideal for building experts and architects of the Bâtiments de France.

• Construction sites and nearby works: Real-time monitoring of neighboring structures during earthworks, demolitions or underground works. Alarm triggering on configurable threshold.

• Industrial and energy infrastructures: Monitoring of silos, tanks, railway infrastructures, offshore platforms and energy production structures in remote areas.

FAQ

• What is the battery life of the PMIOT-FISSUR crack meter? Battery life is 24 months with the internal rechargeable battery, depending on the configured measurement frequency. A solar panel option provides unlimited autonomy on exposed sites.

• Is network infrastructure required on site? No. The system communicates directly via NB-IoT and 4G cellular networks. No router, LoRa gateway or local infrastructure is required.

• What is the maximum measuring range? The potentiometric displacement sensor covers a range from 0-10 mm to 0-1000 mm depending on the chosen configuration, making it suitable for both micro-cracks and significant structural movements.

• Is the system compatible with a third-party Cloud platform? Yes. Data is transmitted using the standard MQTT protocol, compatible with the PM Instrumentation platform or any third-party supervision system (SCADA, BMS, geotechnical monitoring platforms).

to be continued

• Additional batteries
• Solar panel power supply

• Wall mounting bracket
• Pole mounting bracket
• Weather protection
• Solar panel
• Cables
• Mounting angles