Toposens GmbH

Small, robust 3D ultrasound sensor for gesture control and people/object detection

Founded in 2015 by

  • Alexander Rudoy

  • Tobias Bahnemann

  • Rinaldo Persichini

Incubation period

01-09-2016 to 28-02-2018

About Toposens GmbH

Toposens offers “Vision for Technology”! Our 3D ultrasound sensor enables technical objects to perceive their environment and thus interact better with humans.


In the future, we will use our algorithms to develop a 3D radar sensor. This sensor will be capable of scanning terrain and adding information about the structures found to existing maps.

Contact info

The challenge

Currently, if you need 3D positioning information, 3D cameras and 3D laser systems are the most widespread option in use. However, these systems suffer from several problems: They are expensive, large and heavy, and not really robust. Using ultrasound has enabled us to build the first sensor that is small, robust, and affordable.


Thanks to its general support for gesture control, people tracking, and object detection, Toposens’s 3D ultrasound sensor can be used for various fields of application.


Toposens will offer development kits for R&D departments to test our technology and build use cases. We will also offer our own development services and eventually sell specific application-related licences to a variety of customers.

The solution

Toposens builds innovative 3D sensor technology that uses ultrasound to perceive its surroundings in real time. Here, we assemble off-the-shelf components into a specific design and combine this hardware with our unique software expertise. Our sensor is the first of its kind: Until now, no other company has been able to implement 3D scanning in real time using ultrasound in a single sensor system.

The sensor is small, lightweight, low-power, robust (capable of seeing through dust, dirt, rain, etc), affordable, and privacy-compliant – that is, it does not identify faces or structures.

We hope to connect with technical experts in digital signal processing and other areas through the ESA BIC Accelerator. In addition, we hope to benefit from the experts at the German Aerospace Center (DLR), who have in-depth experience in this field. We also want to engage with other startups on technical and general business issues.