Development and testing of a method for presence detection in rooms based on acoustic signals

Project: Borealis

Type: Measurement data analysis, experimental

Supervision: Dr Sascha Hammes, M.Sc., Assoc. Prof. Dr.-Ing. Rainer Pfluger

Start: immediately

Period of activity/scope: 6 months

Fee: 2500€ + 2500€ success fee

Language: German or English

Project content and motivation

The aim of the master's thesis is to develop and test an innovative method for detecting presence in rooms. Preferably, non-audible acoustic signals are to be used to detect the presence of people precisely and reliably. The method is intended to validate both the technical feasibility and the accuracy under various conditions.

The motivation for this project lies in the increasing importance of energy-efficient buildings and intelligent control systems. Precise presence detection enables the dynamic adjustment of lighting, air conditioning and other building services systems to maximise energy savings and comfort.

Possible research question: How can a method for precise and reliable presence detection based on non-audible acoustic signals be developed and validated to support energy-efficient and adaptive control systems in buildings?

Work process and methodology

  • Research into existing presence detection methods and the use of acoustic signals.
  • Definition of system requirements, e.g. range, accuracy and energy efficiency.
  • Investigation of the potential of (inaudible) acoustic signals for presence detection in rooms.
  • Selection of suitable acoustic frequencies and development of a technical concept including suitable hardware and software components.
  • Implementation of a prototype consisting of transmitters and receivers for acoustic signals.
  • Testing and validation of the method under different environmental conditions (e.g. room size, furniture arrangement, number of people present).
  • Analysis of the system accuracy and derivation of possible optimisation approaches.
  • Creation of project documentation with presentation of the methodology, test results and recommendations for practical use.

Acquired qualification

  • Knowledge in the development and application of acoustic sensor technology for building services applications.
  • Experience in processing and analysing acoustic signals, including algorithm development.
  • Understanding of the design, implementation and validation of a prototype system.
  • Ability to conduct systematic experiments under variable conditions.
  • Insight into current challenges and technologies in the field of smart building automation.

If you are interested, please contact:

Dr Sascha Hammes, M.Sc.
Faculty of Engineering Sciences, AB Energy Efficient Building

Assoc. Prof. Dr.-Ing. Rainer Pfluger
Faculty of Engineering Sciences, AB Energy Efficient Building

 

 

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