Mobile phone batterie radiation spread over a users head

DTU Space researcher awarded US patent

Friday 30 Oct 15


François Anton
DTU Space

Division for Innovation and Research-based Consultancy

DTU Spaces most recently established research division was founded to provide a solid foundation for innovation at the institute. It comprises a couple of independent research groups that are engaged in applying technology to some of the problems that face Danish society at the beginning of the 21st century: Polar DTU and the Drone Centre.

Division for Geodesy

Geodesy is the study of the Earth's shape and gravitational, that can also be applied to satellite navigation such as GPS. It requires a great deal of data analysis and modelling to understand how the Earth's shape changes and departs from the spherical shape we generally assume describes our planet. The geodesy division at DTU Space is active in many related fields of research including global positioning and Earth observation.
DTU Space lecturer François Anton Castro has been granted his second US patent, along with his collaborators, Deogratius Musiige and Vincent Laulagnet. The patent is for a method of computing the value of a physical quantity dependent on at least one variable parameter.

The method described in the patent has wide applications in all fields of data analysis and modelling, but has most recently been used by François and his collaborators to investigate health issues such at the radiation absorbed by people while using their mobile phones. One of the joint patent holders,  Vincent Laulagnet, is a director of the Danish medical services company Micro Move which specializes in sensor technology with wireless connectivity. Such sensors can be used to monitor children with cerebral palsy, for example. The other was previously a PhD student at DTU Compute.

"The model can be used to emulate the physical quantity and thereby support device design optimization."
Francois Anton

 Micro Move has recently been awarded a Danish Innovation Fund Innobooster grant of 250.000 danish kroner to do research in these new health technologies. Both François Anton and his colleague at DTU Space, Darka Mioc, will be  collaborating on this research. The development of fine motion sensors as a useful diagnostic and monitoring tool requires rapid computational techniques to reduce large quantities of input data into a coherent model of a patient's behaviour.

François currently works in the Section for Geodesy at DTU Space, studying the Earth's gravitational field, but his PhD is in computer science, specifically Voronoi diagrams. He also teaches courses at DTU on advanced database systems, geophysical measuring systems, GPS and space engineering. The many data modelling and analysis techniques he has at his fingertips can be applied to an unlimited variety of disciplines and problems. In this case, he has created a new data modelling technique which will have applications that even its inventor can barely imagine at the moment.

François explains the new patent as follows:

"The present invention proposes methods, devices and computer program products. To this extent, there is defined a set X including N distinct parameter values x_i for at least one input parameter x, N being an integer greater than or equal to 1, first measured the physical quantity Pm1 for each of the N distinct parameter values x_i of the at least one input parameter x, while keeping all other input parameters fixed, constructed a Vandermonde matrix VM using the set of N parameter values x_i of the at least one input parameter x, and computed the model W for emulating the physical quantity P based on the Vandermonde matrix and the first measured physical quantity according to the equation W=(VMT*VM)−1*VMT*Pm1. The model is iteratively refined so as to obtain the desired emulation precision. The model can later be used to emulate the physical quantity based on input parameters or logs taken from the field and thereby support device design optimization. "

 DTU Space is strongly committed to applying methods and instrumentation, developed through the institute's research activities, to practical applications in relevant hi-tech fields. This collaboration is a good example of the partnerships DTU Space can develop with its industrial partners. The institute has an department devoted to innovation and the practical application of hi-tech techniques and instruments usually associated with more esoteric research.

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