Supporting technolgies during a time of crisis

Since the end of 2019 the virus SARS-CoV-2 affected lives everywhere. Spreading allaround the world, the virus created a global pandemic: Over 100 million people have been infected with the virus already. Measurements to stop chains of infection and therefor reduce the speed of the spreading are being enforced globally.

A wide prevention to control the number of infections is based on two main actions:

Keeping distance as the easiest and most effective instrument against new infections

Due to the fact, that SARS-CoV-2 mainly spreads through droplets in midair, keeping at least 1,5 meters distance from other people is on one hand easily realizable and on the other hand a highly effective measure against infections.

This picture shows a graphic display of social distancing. There are two people wearing masks and keeping their distance. Inbetween both of them is an arrow with the words Social Distancing and 1,5 Meters written above. In the background there are covid-19 bacteria.
© Fraunhofer IIS/Windisch
Social Distancing

What is Social Distancing?

Social Distancing means to reduce the number of personal contact to a minimum to embank the infectious disease. That is to limit personal encounters to a few, familiar persons, avoid big gatherings and always keep a safety distance of at least 1.5 meters.

Contact tracing to stop existing chains of infection

To disrupt existing chains of infection quickly and early a continuing and detailed observation of the rate of new infections is indispensable. From that there must be a systematic identification, isolation and testing of potentially infected persons. This task takes a considerable amount of time and effort from all employees of health offices.

This picture displays a graphic representation of contact tracing. There are five people all wearing masks whom are connected to each other. One person is infected with the corona-virus. All the other persons in this network are being notified about their risk encounter by their smartphones.
© Fraunhofer IIS/Windisch
Contact Tracing

What is Contact Tracing?

Contact Tracing implies the backtracking of people, who have been in contact with infected patients. It is an important action to minimize the spreading of Covid-19 by interrupting chains of infection. You are considered a contact person after being in face-to-face contact with an infected person for at least 15 minutes or once you stayed in a room for a longer period of time with that person.

Technologies for social distancing and contact tracing

Based on this problem it becomes self-evident to use technological resources to observe the following of distancing regulations and to trace contacts. Due to this, Fraunhofer IIS developed expertise and technologies to support social distancing and contact tracing.

User Know-how für Public-Apps


Distance estimation via Bluetooth

The standard solution of real-time positioning enables contact tracing through public social distancing apps as well as in-house business apps and therefor provides the technological basis for different coronavirus warning apps.


Testing for social distancing apps

Due to social distancing apps being completely new, testing the supporting technologies is inevitable. With the help of a complex testing procedure, real distances can be measured and compared with data gathered from social distancing apps.


Exposure notification API

Digital contact tracing can only be effective because of the exposure notification API developed by Google and Apple. The interface allows data exchange from one operating system to another for the first time, which was a main problem while developing social distancing apps.


User Know-how for Business-Apps

Using a company internal business-app provides a solution to secure a centric backtracking of contacts within companies and a fast understanding of infection dynamics . With that it helps to keep productions going and at the same time protects the employees. Our technologies and know-how assist you on that:


Sonic distance estimation

Measuring the distance of end devices via sonic signals provides a new and dependable way of tracing encounters. With this comes the chance of an individual in-house business-app for tracing contacts with employees.


Distance estimation via UWB

More and more companies are searching for technologies, which enable them to secure the safety distancing rules within their premises. Distance measuring via Ultra Wide Band offers a great solution for testing and developing concepts for distance keeping.

Analysis of air quality

Intelligent sensor systems shall measure the CO2 content, temperature and air humidity as accurate as possible. Conclusion on the air quality shall be deducted via a wireless transfer of the data and machine learning.