Kejia Wang, Systems Engineer
I studied Biomedical Engineering at the University of Auckland in New Zealand until 2012 and gained my doctorate in Biomedical Engineering at the University of New South Wales, Sydney, Australia in 2018. I joined Bosch Sensortec in 2017. As a software developer for sensor data fusion I have been supporting the team developing Pedestrian Dead Reckoning software since the start of 2018.
What I like at Bosch Sensortec is that Science Fiction becomes science fact. In the Harry Potter movie “Harry Potter and the Prisoner of Azkaban” (Warner Bros. Entertainment), the “Marauder’s Map” charts where everybody in the Hogwarts School of Witchcraft and Wizardry is at any one moment. A comparable map could actually work in our non-magical world by a combination of a special algorithm and sensors.
An essential part of the technology is the interaction between software and motion sensors which, in turn, could transfer the “Marauder’s Map” to our “Muggle World”. Devices equipped with the technology can determine your position and then send it to a receiver whereby you are made visible on a digital map. Real time movement can also be seen. These days, Bosch uses Pedestrian Dead Reckoning Software (PDR) for everyday uses such as making orientation easier for joggers or tourists with the help of wearable devices like a smartwatch. For it to work, one has to carry certain sensors and a PDR algorithm. Together with other software specialists in my team, I´ve developed a sensor that is small enough to even fit into a smartwatch. The so-called position tracking smart sensor BHI160BP determines one’s position not only outdoors but also indoors — a big advantage over GPS signals that are often very weak inside buildings.