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Digital Bottom Bracket Lock


Practical Project

<span lang="EN-US">Digital Bottom Bracket Lock</span> <span lang="EN-US"><br /></span>

Digital Bottom Bracket Lock

Practical Project

<span lang="EN-US">Digital Bottom Bracket Lock</span>

Project Description

In cooperation with Schmalkalden University of Applied Sciences, the student project “Digital Bottom Bracket Lock with Motion Sensor” was initiated and implemented.

The digital bottom bracket is designed as a lock for effectively securing a bicycle for short periods of time. As soon as the owner moves away from the bicycle, the bottom bracket is automatically blocked, thereby preventing the bicycle from being used by an unauthorized person. When the owner approaches the bicycle again, the bottom bracket is automatically unlocked. Communication with the bicycle takes place via an app on the owner’s cell phone.

The main benefit of the digital bottom bracket is that it avoids the time-consuming process of manually securing the bike with a conventional lock when it is parked for only a short moment or within sight and reach. In addition to blocking the bottom bracket, an acoustic and visual warning signal is activated if the bicycle is moved when locked. Even if the bicycle can still be pushed away, it can be assumed that unauthorized persons will refrain from using it as soon as they notice that the pedals cannot be moved and the alarm sounds.

The digital bottom bracket lock was developed at Schmalkalden University of Applied Sciences within the framework of a project from October 2018 until the end of March 2020 in the Faculty of Computer Science under Prof. Englmeier. It is now available as a prototype, which has been installed in a standard bicycle. The prototype is so far advanced that it can be regarded as a blueprint for serial production. In this respect, the project can be seen as successfully completed.

The project had a special status at the faculty. It was one of the few projects at the university that was organized on an almost cross-faculty basis. The project’s success would not have been possible without the advice and, at times, active cooperation of a number of colleagues from the Faculties of Mechanical and Electrical Engineering as well as from the university’s workshop facility. Even if we have been advised against patenting the digital lock, we will nevertheless still strive to market the idea.

Project details

Topic: Practical Project

Age category: 18 - 40 years

Venue: universities of applied sciences

Duration: 6 months

Participation requirements: None