System for measuring deformations and a method for measuring deformations

A method for measuring the deformations of an examined construction implemented in a system comprising at least one marker (1) fixedly attached to an element of the examined construction, at least one sensor (2) configured and programmed to record data related to the position of the marker (1) in the form of digital data, a processing unit (4) configured and programmed to process the data related to the position of the marker (1), connected communicatively to the sensor (2), preferably via a receiving unit (3), which method comprises the steps of:

• a) recording and preferably initially processing the data related to the position of the marker (1) by the sensor (2) in the form of digital data,
• b) transmitting this digital data to the processing unit (4), preferably by means of the receiving unit (3), which preferably compresses the received digital data before transmitting it to the processing unit (4),
• characterised in that
• a marker (1) comprising at least ten light-emitting characteristic points is used, and by knowing the reference model of the characteristic points of the marker (1) and knowing the reference position of the centre of the marker (1) and the reference rotation of the marker (1),
• c) rotation and position of the centre of the marker (1) are determined by virtual rotation and adjustment of the reference model of characteristic points of the marker (1) to the digital data,
• d) the displacement and rotation of the marker (1) are determined by comparing the rotation and position of the centre of the marker (1), determined in step c), to a reference position of the centre of the marker (1) and a reference rotation of the marker (1).