Automotive Research & Testing Center

Automotive Research & Test Center

Hsuan-Yu Huang

Yen-Cheng Feng

Chun-Yao Shih

Jih-Tao Hsu

Kuo-Ching Chang

A method for monitoring physiological status of a vehicle driver is performed by a monitoring device connected to a physiological sensor and comprises steps of: (a) establishing a personal physiological database comprising steps of: periodically sensing the vehicle driver via the physiological sensor to obtain the physiological signals within an initial duration; obtaining a mean value and a standard deviation based on the physiological signals; and obtaining a tolerance range based on the mean value and the standard deviation, such that the personal physiological database stores the tolerance range; (b) sensing the vehicle driver via the physiological sensor to obtain at least one instant physiological signal after the initial duration; and (c) determining whether the at least one instant physiological signal is out of the tolerance range, such that an alarm is outputted when the at least one instant physiological signal is out of the tolerance range.

Method for monitoring physiological status of vehicle driver

A physiological signal processing method for filtering noise generated by a physiological signal processing system is performed by a physiological signal processing system having a sensing device and a filtering device in connection with the sensing device. The method comprises steps of synchronously receiving a physiological signal and a vibrational signal detected by the sensing device, performing a noise determination algorithm to acquire information in multiple time periods with noises occurring in corresponding time periods according to the vibrational signal, performing a physiological signal filtering algorithm to filter the noises in corresponding time periods of the physiological signal and compensate the filtered physiological signal, and estimating a physiological parameter according to a result of the signal compensation to generate the physiological parameter with accuracy.

Physiological signal processing system and method for filtering noise generated by the same

A calibration method for merging object coordinates and a calibration board device using the same are provided. The calibration board device has a plurality of characteristic points and a central reflection element. A center of the central reflection element has a central characteristic point. A distance sensor emits a distance sensing signal to the central reflection element, so as to obtain a central real coordinate. Intrinsic and extrinsic parameters of a camera is used to establish a transformation equation which transforms the central real coordinate into a central image coordinate. Finally, a calibration image of the calibration board device is retrieved, and the central characteristic point is searched, and the central image coordinate is projected on the calibration image whereby the central image coordinate is calibrated to aim at the central characteristic point on the calibration image, thereby generating extrinsic and intrinsic parameter parameters calibrated.

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Changhua Hsien, Taiwan

Hsuan-Yu Huang