Goertek Inc.

Zhenyu Yu

Xiangdong Zhang

Zhiping Luo

Jian Zhu

Dong Yan

Jianming Du

The present invention discloses a weight-bearing measurement device and method and weight-bearing equipment. The weight-bearing measurement device comprises a weight sensor, an acceleration sensor and a processing unit, wherein the weight sensor comprises a deformable body and a bridge circuit, the deformable body deforms under the action of gravity of a borne object, the bridge circuit comprises at least one resistance strain gauge disposed on the deformable body and is configured to generate an output voltage that represents the deformation under the action of an input voltage; the acceleration sensor is configured to generate acceleration components in three directions perpendicular to one another respectively under the action of gravity of the borne object; and the processing unit is configured to calculate the gravity and/or the mass of the borne object in accordance with the acceleration components in the three directions, the input voltage, the output voltage, and conversion coefficients of the bridge circuit in the three directions.

Weight-bearing measurement device and method and weight-bearing equipment

A method and device for measuring body temperature and a smart apparatus are disclosed. The method comprises: when a temperature measuring instruction is received, starting a camera and a first infrared thermometer; photographing a user by using the camera to obtain an image, and identifying the image to determine a part to be measured of the user; acquiring a distance between the first infrared thermometer and the user; when the distance is equal to a preset distance threshold, controlling the first infrared thermometer to measure the temperature of the part to be measured of the user; wherein the preset distance threshold is set according to a focal length of a Fresnel lens of the first infrared thermometer; and according to a preset rule and the measured temperature, determining a value or a value range of the user's body temperature.

Method and device for measuring body temperature and smart apparatus

The disclosure provides a projection method and projection device. The method comprises: acquiring a sound signal sent by a user; performing locating to determine a positional relationship between the user and the projection device according to the sound signal sent by the user; determining a projected image orientation meeting viewing requirements of the user according to the positional relationship between the user and the projection device; and projecting an image to be projected onto a projection plane according to the projected image orientation. By use of the projection method provided by the disclosure, the projected image orientation may be automatically adjusted according to the viewing requirements of the user, and convenience and friendliness for human-computer interaction may be improved.

Projection method and projection device

The present invention discloses radio frequency transmitting and receiving devices and an unmanned aerial vehicle system. The radio frequency transmitting device comprises: a first crystal oscillator, configured to provide a first clock signal with a frequency f; a reference signal receiving circuit, configured to receive a reference signal with a frequency (N&#x2212;1)&#xd7;f transmitted by a radio frequency receiving device; a frequency mixer, configured to perform frequency mixing processing on the first clock signal and the reference signal to obtain a carrier signal with a frequency N&#xd7;f; a modulating circuit, configured to load a signal to be transmitted on the carrier signal, to obtain a frequency band signal; and a first transmitting circuit, configured to transmit the frequency band signal to the radio frequency receiving device. The radio frequency transmission performed according to the present invention has higher resistance to instantaneous vibration.

Radio frequency transmitting and receiving devices and unmanned aerial vehicle system

The present invention discloses an infrared obstacle detection method and device and a robot. The method comprises the following steps: controlling an emission module to radiate infrared light to the outside; acquiring first infrared light received by a first reception module and second infrared light received by a second reception module, wherein the first reception module is disposed relative to the emission module such that the first infrared light comprises reflected light obtained by reflecting, by an obstacle, the infrared light radiated by the emission module to the outside and infrared light in ambient light, and the second reception module is disposed relative to the emission module such that the second infrared light is the infrared light in the ambient light; and comparing the first infrared light and the second infrared light, and determining that the obstacle is detected when an energy difference between the first infrared light and the second infrared light is larger than a preset threshold.

Infrared obstacle detection method and device, and robot

A wide-band antenna multiplexing method and device of an unmanned aerial vehicle (UAV) are disclosed. The method comprises: by a wide-band antenna, receiving an external signal and sending the received external signal to a first power divider; by the first power divider, dividing the external signal received from the wide-band antenna into multi-way sub-signals, and sending each sub-signal respectively to a receiving filter of a plurality of receiving filters, each of which is connected to the first power divider and corresponds to a functional modules of the UAV respectively; and by each respective receiving filter, performing filtering processing on the received sub-signal, obtaining a signal corresponding to the working frequency band of each respective functional module of the UAV, and sending the signal corresponding to the working frequency band of each respective functional module of the UAV to a corresponding functional module.

Wide-band antenna multiplexing method and device of unmanned aerial vehicle

A voice enhancement method and apparatus of a smart device and a smart device are disclosed. The method comprises: monitoring and collecting a voice signal sent by a user in real time; determining a direction of the user according to the voice signal; collecting a depth image in the direction of the user; determining a sound source direction of the user according to the depth image; and adjusting a beamforming direction of a microphone array on the smart device according to the sound source direction of the user, and performing enhancement processing on the voice signal.

Voice enhancement using depth image and beamforming

A method for charging a service robot and a service robot are disclosed. The method comprises: collecting an audio signal generated by a sound source of a charging pile; determining a direction of the sound source according to the collected audio signal; controlling a robot main body to move toward the direction of the sound source, to shorten a distance between the robot main body and the charging pile; judging whether the infrared receiver array has received an infrared pulse signal emitted by the infrared emitter array of the charging pile; and when the infrared receiver array has received the infrared pulse signal, controlling the robot main body to move toward a direction of the charging pile according to the infrared pulse signal, to engage a charging component of the robot main body with a charging contact element of the charging pile.

Method and device for charging service robot and service robot

An unmanned aerial vehicle (UAV) communication method and device and a UAV are disclosed. The method comprises: acquiring position information of the UAV and position information of a ground station, wherein the ground station and the UAV are communicated wirelessly; determining a distance between the UAV and the ground station according to the position information of the UAV and the position information of the ground station; determining an operating mode of a power amplifier on the UAV according to the distance and a preset distance judgment rule, wherein the distance judgment rule stores correspondences between distance thresholds and operating modes of the power amplifier; and sending a control signal corresponding to the operating mode to the power amplifier, controlling the power amplifier to select a gain parameter threshold corresponding to the operating mode according to the control signal and to perform power amplification of a RF transmitting signal according to the gain parameter threshold; and sending the amplified signal to the ground station.

Unmanned aerial vehicle communication method and device and unmanned aerial vehicle

A service robot and a method for controlling the same are disclosed. The service robot comprises a main body () and a base (). A motor (), a transmission mechanism () and a wheel () are provided in an inner cavity of the base (). The transmission mechanism () is connected with the motor () and the wheel () respectively. The wheel () is disposed below the transmission mechanism (). A space for the transmission mechanism () to move up and down is formed in the inner cavity of the base (). After the motor () is started, the transmission mechanism () is driven to move in the inner cavity of the base () according to a predetermined stroke, and the transmission mechanism () drives the wheel () while the transmission mechanism () is moving so that the wheel () can retract into the inner cavity of the base () or extend out of the inner cavity of the base ().

Service robot and method for controlling same

The application discloses a multichannel echo cancellation circuit and method and smart device. The multichannel echo cancellation circuit comprises signal extraction circuits, one ends of which are connected to the audio channels of the corresponding loudspeakers, to extract part of the audio signals from the audio channels of the corresponding loudspeakers as echo cancellation reference signals; the other ends of the signal extraction circuits are connected to the isolating circuits; the isolating circuits are interconnected to form one noise channel by which the echo cancellation reference signals extracted by each of the signal extraction circuits are formed into one channel of noise signal and then outputted to the processor; and the processor subtracts the noise signal from the sound signal collected by the microphone according to the noise signal inputted and a sound signal collected by a microphone, to obtain a signal that has been denoised.

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Weifang, China

Zhenyu Yu