A ballistocardiogram (BCG) analysis apparatus, method, and system is provided for utilizing the BCG for a vehicle. A basic pattern is selected when measurement of a BCG is initiated. Data about BCG is measured for a predetermined period of time. Whether the basic pattern is suitable for the measured data is determined by comparing the measured data with the basic pattern. If the basic pattern is suitable for the measured BCG data, continuous data about the BCG is collected. Signal processing is performed based on pattern matching using the continuous data. A biological condition of the examinee is recognized using results of the signal processing. A posture of the examinee is measured, and if the posture of the examinee has changed, a pattern DB is searched, the basic pattern is changed to a suitable pattern, and then signal processing is performed.본 발명은 차량 등과 같은 환경에서 피험자의 자세의 변경 등을 적절히 감안하여 피험자로부터 측정된 BCG신호를 적절히 분석할 수 있도록 함으로써, 피험자 신체상태의 정확한 진단이 가능하도록 하고, 그에 따라 차량 등에서 피험자에게 안마 기능을 제공하거나 실내 환기를 시키는 등의 적절한 후속조치가 가능하도록 하여, 차량의 상품성을 극대화시킬 수 있도록 한다.
