Abstract: A wearing prompt method for a wearable device and an apparatus, and related to the field of communications technologies, to reduce a probability that the wearable device cannot accurately measure physiological parameters of a user, thereby improving accuracy of measuring the physiological parameters of the user. The method includes: obtaining, by the wearable device, a target PPG (photo plethysmo graph) signal; and prompting, by the wearable device when the target PPG signal is inconsistent with a stored reference wearing parameter, a user to adjust a wearing position of the wearable device and to adjust tightness of wearing the wearable device.

Abstract: In a method, device information of a characteristic acquisition device associated with a target terminal is acquired in response to a triggering operation for establishing an association relationship between the characteristic acquisition device and a target client in the target terminal. The device information is transmitted to the blockchain network such that each of node devices in the blockchain network authenticates the characteristic acquisition device according to the device information. A respective reference authentication result generated by each of the node devices is acquired. The respective reference authentication result indicates whether the characteristic acquisition device passes authentication of the respective node device. The association relationship between the target client and the characteristic acquisition device is established in response to the characteristic acquisition device passing the authentication according to the reference authentication results.

Abstract: A wearable device (100) includes a body (1) and a detection electrode (21). The body (1) includes an electrocardiosignal collection circuit (11), and an inner electrode (12) and an outer electrode (13) that are electrically connected to the electrocardiosignal collection circuit (11). The inner electrode (12) is configured to collect an electric potential signal of a first wearing position (200), and the outer electrode (13) is configured to collect an electric potential signal of a non-wearing position (300). The detection electrode (21) can move relative to the body (1), and the detection electrode (21) is configured to electrically connect to the electrocardiosignal collection circuit (11) and collect an electric potential signal of a second wearing position (400). The non-wearing position (300) and the second wearing position (400) are different from the first wearing position (200). The wearable device (100) can measure electrocardiosignal data in time.

Abstract: A wearable device (100) includes a body (1) and a detection electrode (21). The body (1) includes an electrocardiosignal collection circuit (11), and an inner electrode (12) and an outer electrode (13) that are electrically connected to the electrocardiosignal collection circuit (11). The inner electrode (12) is configured to collect an electric potential signal of a first wearing position (200), and the outer electrode (13) is configured to collect an electric potential signal of a non-wearing position (300). The detection electrode (21) can move relative to the body (1), and the detection electrode (21) is configured to electrically connect to the electrocardiosignal collection circuit (11) and collect an electric potential signal of a second wearing position (400). The non-wearing position (300) and the second wearing position (400) are different from the first wearing position (200). The wearable device (100) can measure electrocardiosignal data in time.

Abstract: An ECG detection method includes in a wearable device, a first electrode detects a first electrical signal and a second electrode detects a second electrical signal, a processor determines a frequency bandwidth based on a current status of the wearable device and/or a status of a user in contact with the first electrode and the second electrode, and the processor determines an electrocardiogram ECG based on an electrical signal that is in the first electrical signal and the second electrical signal and for which a frequency falls within the frequency bandwidth. The wearable device selects an appropriate frequency bandwidth based on the status of the wearable device and/or the status of the user in contact with the first electrode and the second electrode, and then obtains the ECG based on the frequency bandwidth.

Abstract: A wearable device includes a substrate, at least one light emitting component mounted on one side of the substrate and configured to emit light on at least one optical wavelength band, and at least one lens disposed on an out-light side of the at least one light emitting component, where each lens corresponds to at least one light emitting component, and each lens is capable of reducing a divergence angle of light emitted by the at least one light emitting component corresponding to the lens.

Abstract: A smart wearable device includes a display screen, a rear cover that engages with the display screen, a light generator, and a light receiver. The light generator and the light receiver are disposed in a mounting cavity formed after the display screen engages with the rear cover, the light generator is configured to emit light to an outer side of the rear cover, the light receiver is configured to receive light transmitted from the outer side of the rear cover, the light generator is disposed on a first control panel, the light receiver is disposed on a second control panel, and the light generator is disposed closer to the rear cover than the light receiver.

Abstract: A photoplethysmography sensor is provided. The sensor includes a housing, a cover plate, an optical device configured to emit light outwards, and a photoelectric sensor configured to receive an external optical signal. The housing and the cover plate form an enclosed space, and the optical device and the photoelectric sensor are accommodated in the enclosed space. The cover plate includes a first area used by the optical device to emit the light outwards and a second area used by the photoelectric sensor to receive the external optical signal. The cover plate further includes a third area and a shielding structure disposed on the third area, and the shielding structure is configured to isolate light between the optical device and the photoelectric sensor. The shielding structure is disposed in the third area so that isolation between the optical device and the photoelectric sensor is improved.

Abstract: An electronic device includes one or more optical transmitters, configured to send lights of at least two colors on a preset optical path, one or more optical sensors, configured to detect the lights on the preset optical path, and a processor, configured to determine whether a wearing status of the electronic device is normal, based on a relationship between a first preset threshold and an eigenvalue difference between same features of lights of different colors in the lights of at least two colors that are detected by the one or more optical sensors, and detect a heart rate when the electronic device is worn normally.

Abstract: A wearable device (100) includes a body (1) and a detection electrode (21). The body (1) includes an electrocardiosignal collection circuit (11), and an inner electrode (12) and an outer electrode (13) that are electrically connected to the electrocardiosignal collection circuit (11). The inner electrode (12) is configured to collect an electric potential signal of a first wearing position (200), and the outer electrode (13) is configured to collect an electric potential signal of a non-wearing position (300). The detection electrode (21) can move relative to the body (1), and the detection electrode (21) is configured to electrically connect to the electrocardiosignal collection circuit (11) and collect an electric potential signal of a second wearing position (400). The non-wearing position (300) and the second wearing position (400) are different from the first wearing position (200). The wearable device (100) can measure electrocardiosignal data in time.

Abstract: A wearing prompt method for a wearable device and an apparatus, and related to the field of communications technologies, to reduce a probability that the wearable device cannot accurately measure physiological parameters of a user, thereby improving accuracy of measuring the physiological parameters of the user. The method includes: obtaining, by the wearable device, a target PPG (photo plethysmo graph) signal; and prompting, by the wearable device when the target PPG signal is inconsistent with a stored reference wearing parameter, a user to adjust a wearing position of the wearable device and to adjust tightness of wearing the wearable device.

Abstract: A blood pressure measurement method and apparatus for a wearable device are provided. The method includes: receiving, by a first wearable device, a blood pressure measurement instruction; sending, by the first wearable device, the received blood pressure measurement instruction to a second wearable device; receiving, by the first wearable device, feedback information sent by the second wearable device; starting, by the first wearable device, to collect the first blood pressure reference data; receiving, by the first wearable device, the second blood pressure reference data that is collected by the second wearable device and that is of first specified duration; and calculating, by the first wearable device, blood pressure based on the first blood pressure reference data of the first specified duration and the second blood pressure reference data of the first specified duration.

Abstract: The present invention discloses a method and device for reading a memory card comprising a primary partition and at least one backup partition. The method comprises the following steps that: after writing a first file into the primary partition of the memory card, a read/write device writes the first file into the at least one back partition; and when reading a second file from the memory card, the read/write device reads the second file from the at least one backup partition or from the primary partition if an error occurs in the reading of the second file from the backup partition. The method and device provided herein address the problems existing in the prior art that an embedded system is unstable because of the low error tolerance of a memory card.

Abstract: The present invention discloses a method and device for reading a memory card comprising a primary partition and at least one backup partition. The method comprises the following steps that: after writing a first file into the primary partition of the memory card, a read/write device writes the first file into the at least one back partition; and when reading a second file from the memory card, the read/write device reads the second file from the at least one backup partition or from the primary partition if an error occurs in the reading of the second file from the backup partition. The method and device provided herein address the problems existing in the prior art that an embedded system is unstable because of the low error tolerance of a memory card.