4DBloc™ is a GNSS-based sensor that provides real-time monitoring of ground surfaces and built structures.
4DBloc™ was developed and tested in cooperation with the French National Institute of Geographic and Forest Information (IGN) with the shared aim of creating a GNSS-based position measurement system that is robust, simple, cost-effective and accurate.
4DBloc™, the accurate, robust and economical GNSS deformation sensor
Requiring no calibration or special maintenance, 4DBloc is a very simple sensor, and unlike other sensors in this family requires no regular maintenance.
It also consumes very little energy, and can be powered by a single solar panel installed at the same time.
It is the ideal instrument for the long-term monitoring of locations where access is challenging. 4DBloc data is processed by a dedicated, unique and fully automated algorithm to deliver a level of accuracy within a few millimetres, depending on circumstances and location.