Case Studies
Connectivity,
Internet of Things
Interconnected door locks via a secure and powerful wireless system
Designing & developing a proprietary wireless system (sub-GHz) for access control
Initial situation and problem
- A leading brand-name manufacturer of mechanical locking systems has been developing a product offering for electronic access control for several years
- The essential components (locking cylinder, wall readers, etc.) are intended to be interconnected via a secure and reliable wireless system (SW/HW)
- There is unsatisfactory progress on development
mm1 approach and solution
- Perform a systematic inventory (requirements analysis, architectural review, code review)
- Design a new architecture and essential system services (e.g. log on/off, OTA firmware update, encryption)
- Implement in compliance with requirements and standards incl. certification preparation (e.g. EMC, R&TTE)
mm1 Technology
- A secure and state-of-the-art wireless system has been designed and developed (e.g Diffie-Hellmann key exchange, mesh topology with dynamic routing)
- The PCB design and antenna design have been optimized for performance and range for small/challenging installation spaces (metallic housing)
![](fileadmin/_processed_/b/a/csm_raumluftqualita__t_verbessern_mit-algorithmen_6a2b613c11.jpg)
Case Study
Connectivity,
Internet of Things
![](fileadmin/_processed_/e/9/csm_in-car-WLAN-konzeption_d848e133ce.jpg)
Case Study
Connectivity,
Telecommunications,
Mobility