Senior Keeper is a smart door lock connected with vital signs sensing devices, such as smartwatches. When the elderly encounter an emergency at home, it will emit a red light, project fonts for help, notify emergency contacts, and automatically open the door. When neighbours or rescuers find out, they can ask the elderly about their condition through the microphone on the door lock, and the elderly can answer remotely using the door lock's speaker. Finally, the rescuer can decide whether to enter the door to give help according to the specific situation.

Dr. Jiang Wu is an Assistant Professor at the Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham Ningbo China. He is a senior design practitioner and researcher in integrated innovations of technology, culture, and user experiences. He was a design researcher and received his PhD degree at the Intelligent Lighting Institute of the Eindhoven University of Technology; his work focuses on designing ambient lighting systems for information displays that help boost productivity, stress management, and create information decoration.

The University of Nottingham Ningbo China (UNNC) is a university situated in the city of Ningbo in the coastal province of Zhejiang, China. It is affiliated with the University of Nottingham in the United Kingdom (UK). The industrial design programme of UNNC is affiliated to the department of Materials Mechanical and Manufacturing, Faculty of Science and Engineering. It integrates the disciplines of materials science and intelligent manufacturing, talents with multi-cultural backgrounds, and the state-of-the-art design approaches (human-centred design, computer-aided design, digital fabrications, human-computer interaction design), to explore innovations in technology, business, and academic research.