In this project, a larger and smart residence will be developed for laboratory animals, in particular rats. The goal of ELAN is to stimulate more natural behaviour and prevent stress and frustration in animals, making measurements more accurate. This promotes both animal welfare and the quality of results. ELAN consists of newly designed home cages equipped with cameras, ultrasonic microphones and other sensors. In addition, we are working on software with artificial intelligence for data acquisition, integration, storage and analysis.