Herbert F. Schweinzer

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The free market forces infrastructure operators to increase their operational efficiency. To achieve this, among other things personnel costs have to be reduced. This implicates the reduction of the number of train station inspectors. Since they were also responsible for checking the passing trains for fault states, the higher distances of unobserved(More)
There are many situations in which it is desirable to use a Local Positioning System (LPS), which constitutes a complete and independent unit, offers high accuracy and in addition is economical to realize. This paper describes the LPS LOSNUS (Localization of Sensor Nodes by Ultra Sound). LOSNUS is a complete and independent LPS where the same system can be(More)
In the last years, a few Ultrasonic (US) positioning systems were presented which are primarily directed at indoor tracking of mobile devices. The US positioning system LOSNUS presented in this paper widens the application additionally supporting locating of static devices which can be numerously deployed communicating via a wired or wireless sensor(More)
This paper presents some new work concentrated on methods and strategies to gain basic features for scene analysis, based on distance measurements with ultrasonic sensors. While in former works object classification is sometimes carried out with special sensor arrangements, our methods are based in principle on continuous movements of single sensors.(More)