Abstract: A thermal abnormality detection system includes: a first heat dissipation system having a first temperature sensor for measuring an actual temperature of the first heat dissipation system; a second heat dissipation system having a second temperature sensor for measuring an actual temperature of the second heat dissipation system. Assuming that a difference between the actual temperature of the first heat dissipation system and an upper limit temperature of the first heat dissipation system is d1, and a difference between the actual temperature of the second heat dissipation system and an upper limit temperature of the second heat dissipation system is d2, when a value of d1?d2 is greater than an error threshold value Error1_level, the first heat dissipation system is determined to be abnormal, and when the value of d1?d2 is less than an error threshold value Error2_level, the second heat dissipation system is determined to be abnormal.

Abstract: A method for determining failure of a power element for use in an electronic device is provided. The electronic device includes a power element and a detection circuit. The method includes the steps of: obtaining a temperature-calculation model of the power element, and obtaining a parameterized temperature-calculation model of a power-element parameter and a parameterized temperature of the power element; detecting load information and the power-element parameter by the detection circuit; calculating a modeled temperature of the power element according to the load information and the temperature-calculation model, and calculating the parameterized temperature of the power element according to the power-element parameter and the parameterized temperature-calculation model; determining whether an error between the modeled temperature and the parameterized temperature exceeds a permitted range; and determining that the power element has failed in response to the error exceeding the permitted range.

Abstract: A method for determining failure of a power element for use in an electronic device is provided. The electronic device includes a power element and a detection circuit. The method includes the steps of: obtaining a temperature-calculation model of the power element, and obtaining a parameterized temperature-calculation model of a power-element parameter and a parameterized temperature of the power element; detecting load information and the power-element parameter by the detection circuit; calculating a modeled temperature of the power element according to the load information and the temperature-calculation model, and calculating the parameterized temperature of the power element according to the power-element parameter and the parameterized temperature-calculation model; determining whether an error between the modeled temperature and the parameterized temperature exceeds a permitted range; and determining that the power element has failed in response to the error exceeding the permitted range.

Abstract: A thermal abnormality detection system includes: a first heat dissipation system having a first temperature sensor for measuring an actual temperature of the first heat dissipation system; a second heat dissipation system having a second temperature sensor for measuring an actual temperature of the second heat dissipation system. Assuming that a difference between the actual temperature of the first heat dissipation system and an upper limit temperature of the first heat dissipation system is d1, and a difference between the actual temperature of the second heat dissipation system and an upper limit temperature of the second heat dissipation system is d2, when a value of d1?d2 is greater than an error threshold value Error1_level, the first heat dissipation system is determined to be abnormal, and when the value of d1?d2 is less than an error threshold value Error2_level, the second heat dissipation system is determined to be abnormal.

Abstract: A physiological detection device includes a main body, a sensor pair, a signal processor, and a calculation module. The sensor pair is disposed in the main body and adapted to detect a detected portion of a human body, so as to obtain a sensing signal. The signal processor is disposed in the main body and receives and processes the sensing signal, so as to output a digital physiological signal. The calculation module receives the digital physiological signal and calculates to obtain first information and second information of a plurality of feature points of the digital physiological signal. The calculation module calculates a ratio of the second information to the first information, so as to obtain a physiological state index. The digital physiological signal includes a plurality of pulse waves generated according to a time sequence.

Abstract: A portable electronic device includes a body, a signal transmitter/receiver. The body includes a display which has a first display mode and a second display mode. The signal transmitter/receiver has a ball spiral, a first ball and a second ball. The signal transmitter/receiver is pivotally connected to the body of the portable electronic device. The signal transmitter/receiver can be rotated around a rotation axis defined by the first ball and the ball spiral to a first signal receiving position corresponding to the first display mode, and can be rotated around a rotation axis defined by the second ball and the ball spiral to a second signal receiving position corresponding to the second display mode. Therefore, signals can be better transmitted or received when the display is in a given display mode.

Abstract: A portable electronic device includes a body, a signal transmitter/receiver. The body includes a display which has a first display mode and a second display mode. The signal transmitter/receiver has a ball spiral, a first ball and a second ball. The signal transmitter/receiver is pivotally connected to the body of the portable electronic device. The signal transmitter/receiver can be rotated around a rotation axis defined by the first ball and the ball spiral to a first signal receiving position corresponding to the first display mode, and can be rotated around a rotation axis defined by the second ball and the ball spiral to a second signal receiving position corresponding to the second display mode. Therefore, signals can be better transmitted or received when the display is in a given display mode.