1425. Development of vital signs detection system with ground noise cancellation

Chih Chieh Liu, Ching-Hua Hung*, Huai Ching Chien

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


This study provides an experimental procedure and a noise immunity method for detecting the vital signs of a person in a vehicle. Velocity sensors that are convenient and accurate at acquiring data are adopted to detect the involuntary body vibrations. Two kinds of algorithms were proposed for detecting the vital signs in different environments with various ground noise level. To reduce the ground noise effect generated from extreme environments, a ground sensor also is used to measure the vibration amplitude of ground surface for calculating the car body response to provide excellent noise cancelling method. Measuring and processing the vibrations are effective methods for detecting people concealed in a vehicle. The complete detecting system was verified through experiment conducted with a passenger car.

Original languageEnglish
Pages (from-to)3361-3371
Number of pages11
JournalJournal of Vibroengineering
Issue number7
StatePublished - 1 Jan 2014


  • Detection system
  • Ground noise
  • Vehicle vibration
  • Velocity sensors
  • Vital signs

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