Abstract: A heart rate detection method includes a facial image data acquiring step, a feature points recognizing step, an effective displacement signal generating step and a heart rate determining step. The feature points recognizing step is for recognizing a plurality of feature points, wherein a number range of the feature points is from three to twenty, and the feature points include a center point between two medial canthi, a point of a pronasale and a point of a subnasale of the face. The effective displacement signal generating step is for calculating an original displacement signal, wherein the original displacement signal is converted to an effective displacement signal. The heart rate determining step is for transforming the effective displacement signals of each of the feature points to an effective spectrum, wherein a heart rate is determined from one of the effective spectrums corresponding to the feature points, respectively.

Abstract: A heart rate detection method includes a facial image data acquiring step, a feature points recognizing step, an effective displacement signal generating step and a heart rate determining step. The feature points recognizing step is for recognizing a plurality of feature points, wherein a number range of the feature points is from three to twenty, and the feature points include a center point between two medial canthi, a point of a pronasale and a point of a subnasale of the face. The effective displacement signal generating step is for calculating an original displacement signal, wherein the original displacement signal is converted to an effective displacement signal. The heart rate determining step is for transforming the effective displacement signals of each of the feature points to an effective spectrum, wherein a heart rate is determined from one of the effective spectrums corresponding to the feature points, respectively.

Abstract: A headband structure includes a headband main body and at least one ornamental unit movably connected to the headband main body. The ornamental unit includes an ornament and a connecting element provided between the headband main body and the ornament. The ornament of the ornamental unit is movably connected to the headband main body via the connecting element, so that a user may remove, replace, or shift the ornament according to actual need and give the headband structure changeful and esthetic appearances.

Abstract: An air-driven power generating device, comprising: an air-driven portion; a planar magnet, disposed on the air-driven portion and having a plurality of magnetic poles for generating an alternate magnetic field, the planar magnet being driven by the air-driven portion so as to change the alternate magnetic field; a planar coil, disposed apart from the planar magnet for a distance, the planar coil having a plurality of induced regions so as to induce the alternate magnetic field to generate an induced electromotive force (EMF); and a control circuit, electrically connected to the planar coil.

Abstract: A direct current planar motor is disclosed, comprising a rotor, at least a first stator and at least one second stator. The rotor can produce a multi-pole magnetic field with alternating polarity; the first stator having at least a first planar coil is parallelly arranged at a side of the rotor; and the second rotor having at least a second planar coil is parallelly arranged at another side of the rotor opposite to the first stator. Wherein the phase of the second planar coil is differed from that of the first planar coil by a specific phase, and a driving force is generated and exerted on the rotor for driving the same to rotate while the first stator and the second rotor are connected alternately. With the alternating of the connection to the first and the second stators, a dual-phase control is formed enabling the first and second planar coils to produce multi-pole magnetic fields with alternating polarity so as to enable the planar motor to be featured of ease-to-control, highly stable, and low-loading.