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GEAGPS

GEAGPS

GeaGPS is a data acquisition system developed for a passive and continuous monitoring study aimed at observing the evolution of a landslide detachment phenomenon, as a complement or alternative to remote sensing techniques. Originally designed for a specific application, GeaGPS features an architecture oriented toward customization, allowing it to be adapted to various monitoring contexts.
In the case of landslide phenomena, ground movements can generate microseismic events or indicate an imminent detachment: the microfracturing process releases elastic waves, which are recorded by a network of sensors distributed across the affected surface. Dedicated algorithms make it possible to distinguish these signals from ambient seismic noise, classify them, locate their source, and analyze their temporal evolution. This information is essential for identifying the most unstable compartments and monitoring the development of the phenomenon up to the point of rupture.
Do you need a customized solution for your application? Contact our technical department.
Models
Methodologies
CONTINUOUS SEISMIC MONITORING

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PASSIVE CONTINUOUS MONITORING - THE GEAGPS SOLUTION

To acquire seismic data over long periods in remote areas characterized by extreme temperature variations and harsh environmental conditions (such as the Italian Alps), GeaGPS has been equipped with internal batteries capable of ensuring at least one month of operation. Thanks to the use of a solar panel, the battery autonomy can be further extended. The data, provided by a three-component surface geophone (2 Hz), is acquired through a 4-channel, 24-bit board and automatically stored on the internal SD memory. The integrated GPS clock enables the synchronization of multiple GeaGPS units, even if they are not physically connected to each other.

This allows researchers to freely choose the most suitable locations for deploying each individual station, each of which is capable of operating completely autonomously. By installing an internal SIM card, it is possible to periodically send an SMS to the Central Monitoring Station, reporting battery charge level, memory usage percentage, temperature, and other parameters. Thanks to this simple, ultra-low-power solution, the operator can remotely verify the operational status of the entire system throughout the entire monitoring period.

 

GEAGPSACCESSORIES

3DLG-2
3DLG-2

The 3D Land Geophone 3DLG-2 is the ideal accessory to add to your seismic instrumentation and perform HVSR, MASW and Vibration Analysis. One vertical and two horizontal high-performing sensors, with 2Hz resonance frequency and properly coupled, are mounted in a robust waterproof case, delivered with adjustable feet and inter-changeable rods.

3D LAND GEOPHONE
3D LAND GEOPHONE

2Hz and 4.5Hz - sensor triad in standard 3C shell with bubble level and 3 steel 75mm rods, 1m of cable terminated with 3x single “split spring” for seismic cable (version available upon request with Cannon connector for direct connection to the seismograph).

TECHNICAL
SPECIFICATION
GEAGPS

The technical specifications
provided refer to the project
presented and are to be considered
as indicative only;
they can be adapted upon
request based on specific
acquisition requirements.

2 YEAR WARRANTY

No. of Channel
4 channels, +/- 2.2 V (standard version for direct interface to 2Hz geophones)
Data conversion
24 real bits Sigma-Delta ADC
Power Supply
Internal battery for at least 1 month operation (standard version); other solution available on request (solar panels, etc.)
Data Recording
Internal Micro SD, 32 Gb (standard version)
Sampling Rate
User selectable, according to application requirement and memory
Data Output File
User selectable output file length (e.g in 1 hour you obtain 13.7 MB data @ 250 Sps)
Timing
Internal GPS (to allow the synchronization of all stations in the same monitoring system, even if they are not connected together) Primary GPS synchronization is 1kHz, acquisition resolution is then decimated to 250 Hz.
Connectivity (via optional SIM)
By adding an internal SIM, a SMS can be periodically sent to the Central Control Station with indication of Battery Charge, % Memory used, Temperature, etc.
Technical specifications subject to change without notice
No. of Channel
4 channels, +/- 2.2 V (standard version for direct interface to 2Hz geophones)
Data conversion
24 real bits Sigma-Delta ADC
Power Supply

Internal battery for at least 1 month operation (standard version); other solution available on request (solar panels, etc.)

Data Recording
Internal Micro SD, 32 Gb (standard version)
Sampling Rate
User selectable, according to application requirement and memory
Data Output File
User selectable output file length (e.g in 1 hour you obtain 13.7 MB data @ 250 Sps)
Timing
Internal GPS (to allow the synchronization of all stations in the same monitoring system, even if they are not connected together) Primary GPS synchronization is 1kHz, acquisition resolution is then decimated to 250 Hz.
Connectivity (via optional SIM)
By adding an internal SIM, a SMS can be periodically sent to the Central Control Station with indication of Battery Charge, % Memory used, Temperature, etc.
Technical specifications subject to change without notice