Abstract: A head-mounted device comprises a main body, a monitor-base, a monitor, and an adjusting component. The main body is mounted on a user's head. The monitor moves with the monitor-base. An eyes-monitor distance is defined between the user's eyes and the monitor. A visual range is defined by a range seen by the user's eyes through the monitor. The adjusting component is configured for pulling or pushing the monitor-base towards the user's eyes to prevent the eyes-monitor distance from increasing and to prevent the visual range from decreasing. When the user wears a pair of glasses between the user's eyes and the monitor, and the glasses block the monitor causing the eyes-monitor distance to be larger than a preset distance, the adjusting component pulls or pushes the monitor-base until the monitor contacts the glasses, to prevent the eyes-monitor distance from increasing. An augmented reality device is also disclosed.

Abstract: A physiological signal measurement device is disclosed. In some implementations, the physiological signal measurement device includes a fixing element, a rack, a first sensor, and a second sensor. The fixing element is configured to be fixed on a limb of a user. The rack is configured to engage the fixing element and includes a first end and a second end distal to the first end. The first sensor is disposed on the first end of the rack. The sensor is disposed on the second end of the rack. The first end of the rack has a first stiffness, the second end of the rack has a second stiffness, and the first stiffness is higher than the second stiffness.

Abstract: A remote collaboration method applied to a remote device is provided. In the method, the remote device receives a first image transmitted by a wearable device and determines a reference area based on the first image. The remote device further determines a position of a target object relative to the reference area and generates the indication information according to the position of the target object relative to the reference area and transmits the indication information to the wearable device. The method can provide a user with the indication information of the position of the target object in the eyesight through remote collaboration between the remote device and the wearable device, thereby improving the efficiency and accuracy of determining the position of the target object.

Abstract: A wind speed detection method for an electronic device includes detection of a first air pressure value in outside environment around the electronic device when an air hole of the electronic device is blocked. The electronic device can be aligned directly against a wind and a second air pressure value is detected in outside environment. A wind pressure value in the outside environment can be acquired according to a difference value between the first air pressure value and the second air pressure value. Value of wind speed in the outside environment can be established according to the wind pressure value and a relationship between the wind pressure value and the wind speed value.

Abstract: A method for adjusting a display screen of an electronic device is disclosed. The method includes obtaining a pupil image of a user of the electronic device. An eye condition of the user is determined by analyzing the pupil image. The proportions between a red channel, a green channel, and a blue channel (RGB) of a display screen of the electronic device is adjusted according to the eye condition.

Abstract: A wind speed detection method for an electronic device includes detection of a first air pressure value in outside environment around the electronic device when an air hole of the electronic device is blocked. The electronic device can be aligned directly against a wind and a second air pressure value is detected in outside environment. A wind pressure value in the outside environment can be acquired according to a difference value between the first air pressure value and the second air pressure value. Value of wind speed in the outside environment can be established according to the wind pressure value and a relationship between the wind pressure value and the wind speed value.

Abstract: An electronic device and a method generate a first model and a second model when the images presented by the electronic device are viewed by a user located at a reference location. The electronic device obtains an image of the user captured by a camera of the electronic device when the user views the images presented by the electronic device. The electronic device generates a third model according to the image of the user. The electronic device adjusts the images presented by the electronic device when the third model does not match the first model.

Abstract: A method for adjusting a display screen of an electronic device is disclosed. The method includes obtaining a pupil image of a user of the electronic device. An eye condition of the user is determined by analyzing the pupil image. The proportions between a red channel, a green channel, and a blue channel (RGB) of a display screen of the electronic device is adjusted according to the eye condition.

Abstract: A method for disguising the environment and thus the location in which a telephone is being used includes acquiring a disguised environmental sound from a storage device in response to a selection of a user, controlling a voice acquiring device to acquire voice of the user and actual undisguised environmental noise during a call. An environmental noise signal is removed and replaced by an environment-disguising sound signal. An ultrasonic signal can be generated and synthesized with the transmitted voice signal to indicate mis-use of a communication device notwithstanding the environment-disguising noises.

Abstract: In a method for reminding using an electronic device, the method includes controlling a front camera of the electronic device to capture a facial image, determining whether a user needs to shave according to the characteristic information of a beard region of the facial image, and controlling a reminding device to remind the user to shave.

Abstract: A hands-free control method for an electronic device requires a display device, a storage device, and a camera in the device. The method includes capturing an infrared image of a user's eye and a direction of gaze of a user's eye being analyzed according to the captured infrared image to determine a focus of the eye on the display device. Movements of the focus on the display device according to a previous position and a current position of the focus of the eye can be analyzed. A control instruction is generated according to a relationship between control instructions and eye movements and voice instructions can be generated based on received voice command from the user. The display device is controlled to perform predetermined actions when the voice instruction matches with the control instruction.

Abstract: A navigation method for indoor escaping is executed by at least one processor of an electronic device. At least three message transmitters fixed in a building around the electronic device are connected with the electronic device. Messages are received from each message transmitter. The messages include location information of each message transmitter and a floor plan of the building. A current position of the electronic device is determined according to the location information of each message transmitter and signal strength of each connection between the electronic device and each message transmitter when receiving a fire alarm and a position of the fire. An optimal escape route is calculated according to the floor plan of the building, the position of the electronic device, and the position of the fire. Navigation is provided to a user of the electronic device to escape from the building.

Abstract: A navigation method for indoor escaping is executed by at least one processor of an electronic device. At least three message transmitters fixed in a building around the electronic device are connected with the electronic device. Messages are received from each message transmitter. The messages include location information of each message transmitter and a floor plan of the building. A current position of the electronic device is determined according to the location information of each message transmitter and signal strength of each connection between the electronic device and each message transmitter when receiving a fire alarm and a position of the fire. An optimal escape route is calculated according to the floor plan of the building, the position of the electronic device, and the position of the fire. Navigation is provided to a user of the electronic device to escape from the building.

Abstract: In a method for detecting and controlling of driving whilst under the influence of alcohol, breath alcohol concentrations of a user are received from an alcohol sensor at predetermined time periods. The breath alcohol concentrations are analyzed to construct a regression curve, and a target time when the user will have become sober can be predicted according to the regression curve. When a dangerous work is done before the target time, an audible warning can be outputted through an output device.

Abstract: In a ringtone control method executed in an electronic device receiving a call, an image capturing device captures images of surroundings of the electronic device in the event of receiving a call. The absence or presence of a person in the surroundings of the electronic device is detected and, if a person is found, whether the person is moving towards or away from the electronic device is detected according to the images. If the person is moving towards the electronic device, a ringtone volume of the call is decreased. If the person is moving away from the electronic device, the ringtone volume of the call is increased.

Abstract: A mouse pad with a touch detection function includes a communication unit, a first ultrasonic unit, a second ultrasonic unit, and a processor including a detection module, a selection module, a calculating module, and a determining module, the detection module detects whether the first ultrasonic unit and second ultrasonic unit receive reflection waves, and determines that an object is touching the mouse pad when the first ultrasonic unit and second ultrasonic unit receive the reflection waves, the selection module selects a predetermined number of first reflection waves and second reflection waves, the calculating module establishes a rectangular coordinates system, and determines coordinate values of the first reflection points and second reflection points, the determining module determines the reflection points having the same coordinate value at a first predetermined interval, selects a reflection point from the determined reflection points as a detection point.

Abstract: A method for taking image of face which is executable on an electronic device requires a speaker and a camera. An activation of the camera is detected and the speaker is controlled to emit sound from an audio file to draw attention of a target. If the face of the target is not facing the camera for a predetermined duration, a volume of the emitted sound is increased or another audio file replaces the currently played audio file and the camera is triggered to take an image of the target when the target is fully facing the camera.

Abstract: A method for taking image of face which is executable on an electronic device requires a speaker and a camera. An activation of the camera is detected and the speaker is controlled to emit sound from an audio file to draw attention of a target. If the face of the target is not facing the camera for a predetermined duration, a volume of the emitted sound is increased or another audio file replaces the currently played audio file and the camera is triggered to take an image of the target when the target is fully facing the camera.

Abstract: A method for detecting an air pollutant includes feeding air into a device to detect a quantity of the air pollutant, determining whether the quantity of the air pollutant exceeds a threshold value, turning on a gyroscope and an accelerometer of the device when the quantity of the air pollutant exceeds the threshold value, obtaining positions and moving distances of the device from the gyroscope and the accelerometer, calculating a relationship between the positions and moving distances of the device and the quantity of the air pollutant, and displaying the relationship between the positions and moving distances of the device and the quantity of the air pollutant on a display.

Abstract: In a ringtone control method executed in an electronic device receiving a call, an image capturing device captures images of surroundings of the electronic device in the event of receiving a call. The absence or presence of a person in the surroundings of the electronic device is detected and, if a person is found, whether the person is moving towards or away from the electronic device is detected according to the images. If the person is moving towards the electronic device, a ringtone volume of the call is decreased. If the person is moving away from the electronic device, the ringtone volume of the call is increased.