Abstract: A voltage detection device. The voltage detection device comprises a rod, a contact member and a probe. The contact member is rotatably connected to an axial end of the rod and is configured to abut against an electric motor shaft, and the probe is electrically connected to the contact member.

Abstract: The present disclosure relates to the field of noise reduction technologies, and specifically a motor noise control method and apparatus, a computer device and a storage medium are provided. The method includes: determining a current driving mode of a vehicle and a total torque required by the vehicle in the current driving mode; acquiring an electric drive noise distribution matrix of the vehicle in the current driving mode, where the electric drive noise distribution matrix includes correspondences among target motor noises, target motor speeds, and target motor torques of respective motors in the current driving mode; and distributing a torque of each motor according to the electric drive noise distribution matrix, where a sum of torques of the respective motors is equal to the total torque required by the vehicle.

Abstract: Embodiments are provided for communicating notifications and other textual data associated with applications installed on an electronic device. According to certain aspects, a user can interface with an input device to send a wake up trigger to the electronic device. The electronic device retrieves application notifications and converts (288) the application notifications to audio data. The electronic device also sends the audio data to an audio output device for annunciation. The user may also use the input device to send a request to the electronic device to activate the display screen. The electronic device identifies an application corresponding to an annunciated notification, and activates the display screen and initiates the application.

Abstract: Embodiments are provided for communicating notifications and other textual data associated with applications installed on an electronic device. According to certain aspects, a user can interface with an input device to send (218) a wake up trigger to the electronic device. The electronic device retrieves (222) application notifications and converts (288) the application notifications to audio data. The electronic device also sends (230) the audio data to an audio output device for annunciation (232). The user may also use the input device to send (242) a request to the electronic device to activate the display screen. The electronic device identifies (248) an application corresponding to an annunciated notification, and activates (254) the display screen and initiates the application.

Abstract: Embodiments are provided for communicating notifications and other textual data associated with applications installed on an electronic device. According to certain aspects, a user can interface with an input device to send (218) a wake up trigger to the electronic device. The electronic device retrieves (222) application notifications and converts (288) the application notifications to audio data. The electronic device also sends (230) the audio data to an audio output device for annunciation (232). The user may also use the input device to send (242) a request to the electronic device to activate the display screen. The electronic device identifies (248) an application corresponding to an annunciated notification, and activates (254) the display screen and initiates the application.

Abstract: Techniques for efficiently processing and publishing video via an online service are disclosed herein. In some embodiments, a computer system receives an original version of a video from a first computing device of a first user of an online service, determines that a converted version of the video is not available at a first point in time, publishes the original version of the video on the online service based on the request to post the video and on the determining that the converted version of the video is not available, determines that the converted version of the video is available at a second point in time subsequent to the first point in time, and publishes the converted version of the video on the online service based on the determining that the converted version of the video is available.

Abstract: Embodiments are provided for communicating notifications and other textual data associated with applications installed on an electronic device. According to certain aspects, a user can interface with an input device to send (218) a wake up trigger to the electronic device. The electronic device retrieves (222) application notifications and converts (288) the application notifications to audio data. The electronic device also sends (230) the audio data to an audio output device for annunciation (232). The user may also use the input device to send (242) a request to the electronic device to activate the display screen. The electronic device identifies (248) an application corresponding to an annunciated notification, and activates (254) the display screen and initiates the application.

Abstract: Embodiments are provided for communicating notifications and other textual data associated with applications installed on an electronic device. According to certain aspects, a user can interface with an input device to send (218) a wake up trigger to the electronic device. The electronic device retrieves (222) application notifications and converts (288) the application notifications to audio data. The electronic device also sends (230) the audio data to an audio output device for annunciation (232). The user may also use the input device to send (242) a request to the electronic device to activate the display screen. The electronic device identifies (248) an application corresponding to an annunciated notification, and activates (254) the display screen and initiates the application.

Abstract: Techniques for efficiently processing and publishing video via an online service are disclosed herein. In some embodiments, a computer system receives an original version of a video from a first computing device of a first user of an online service, determines that a converted version of the video is not available at a first point in time, publishes the original version of the video on the online service based on the request to post the video and on the determining that the converted version of the video is not available, determines that the converted version of the video is available at a second point in time subsequent to the first point in time, and publishes the converted version of the video on the online service based on the determining that the converted version of the video is available.

Abstract: The present application provides a magnetic bead-based nucleic acid extraction apparatus including a well plate, a magnetic attraction mechanism, a position moving mechanism, and an oscillation mechanism, a supporting base, and a fixing base disposed on the supporting base. The magnetic attraction mechanism includes a magnetic bar fixing base and a magnetic bar movably disposed on the magnetic bar fixing base. The position moving mechanism includes a ball screw and a driving motor; two ends of the ball screw are respectively connected to the magnetic bar fixing base and the driving motor. The oscillation mechanism includes a carrier and a main oscillation unit connected to the carrier. The main oscillation unit includes a motor spindle, an eccentric column, and a connecting base.

Abstract: A method of tracking a face includes determining a current frame from video stream data in response to receiving a face tracking instruction; detecting a position of a face in the current frame, and obtaining a historical motion trajectory of the face in the current frame; predicting the position of the face in the current frame based on the historical motion trajectory to obtain a predicted position of the face; obtaining a correlation matrix of the historical motion trajectory and the face in the current frame based on the predicted position and the detected position; and updating the historical motion trajectory based on the correlation matrix, and tracking the face in a next frame based on the updated historical motion trajectory.

Abstract: The application presents a multi-posture lower limb rehabilitation robot, which includes a robot base and a training bed. The training bed comprises two sets of leg mechanisms, a seat, a seat width adjustment mechanism, a mechanism for adjusting the gravity center of human body, a back cushion, a weight support system and a mechanism for adjusting the back cushion angle. The robot base comprises a mechanism for adjusting the bed angle. The mechanisms for adjusting the angles of bed and back cushion can be used together to provide paralysis patients with multiple training modes of lying, sitting, and standing postures. Each leg mechanism comprises hip, knee, and ankle joints, which are driven by electric motors; angle and force sensors are installed on each joint, and can be used to identify patients' motion intention to provide patients with active and assistant training.

Abstract: Embodiments are provided for communicating notifications and other textual data associated with applications installed on an electronic device. According to certain aspects, a user can interface with an input device to send (218) a wake up trigger to the electronic device. The electronic device retrieves (222) application notifications and converts (288) the application notifications to audio data. The electronic device also sends (230) the audio data to an audio output device for annunciation (232). The user may also use the input device to send (242) a request to the electronic device to activate the display screen. The electronic device identifies (248) an application corresponding to an annunciated notification, and activates (254) the display screen and initiates the application.

Abstract: Embodiments are provided for communicating notifications and other textual data associated with applications installed on an electronic device. According to certain aspects, a user can interface with an input device to send (218) a wake up trigger to the electronic device. The electronic device retrieves (222) application notifications and converts (288) the application notifications to audio data. The electronic device also sends (230) the audio data to an audio output device for annunciation (232). The user may also use the input device to send (242) a request to the electronic device to activate the display screen. The electronic device identifies (248) an application corresponding to an annunciated notification, and activates (254) the display screen and initiates the application.

Abstract: A mode-locked fiber laser device is provided in the disclosure. The mode-locked fiber laser device includes a non-linear loop mirror, an optical splitter and a uni-directional loop. The uni-directional loop includes a polarization beam splitter and a Faraday rotator. The uni-directional loop is coupled to the non-linear loop mirror by the optical splitter to form a figure-8 optical path. A first output laser pulse output by the optical splitter is propagated to the polarization beam splitter. After being rotated 45 degrees by a Faraday rotator, the first output laser pulse is propagated back to the non-linear loop mirror to form a laser resonator. A second output laser pulse output by the optical splitter is propagated to the Faraday rotator to rotate the second output laser pulse 45 degrees, and the polarization beam splitter reflects the second output laser pulse to the outside of the mode-locked fiber laser device.

Abstract: A laser device with a ring laser resonator includes a polarization maintaining (PM) fiber, a first quarter waveplate, and an optical isolator. The PM fiber has a light input end and a light output end and is configured to guide a first linearly polarized light with a first phase along a fast axis of the PM fiber from the light input end and a second linearly polarized light with a second phase along a slow axis of the PM fiber from the input end. The first quarter waveplate is disposed at the light output end of the PM fiber and configured to convert the first and the second linearly polarized lights into left-handed and right-handed (or right-handed and left-handed) circularly polarized lights, respectively. The optical isolator is configured to unidirectionally transmit a laser pulse in the ring laser resonator.

Abstract: A ranging light source includes a light source, a frequency division device and a transmitter. The light source is configured to generate a comb laser. The frequency division device is configured to generate a plurality of emitting n laser beams. These emitting laser beams have different center frequencies respectively. The transmitter is configured to output the emitting laser beams. The light source, the frequency division device and the transmitter are located on a first optical path. On the optical path, the frequency division device is between the light source and the transmitter.

Abstract: A mode-locked fiber laser device is provided in the disclosure. The mode-locked fiber laser device includes a non-linear loop mirror, an optical splitter and a uni-directional loop. The uni-directional loop includes a polarization beam splitter and a Faraday rotator. The uni-directional loop is coupled to the non-linear loop mirror by the optical splitter to form a figure-8 optical path. A first output laser pulse output by the optical splitter is propagated to the polarization beam splitter. After being rotated 45 degrees by a Faraday rotator, the first output laser pulse is propagated back to the non-linear loop mirror to form a laser resonator. A second output laser pulse output by the optical splitter is propagated to the Faraday rotator to rotate the second output laser pulse 45 degrees, and the polarization beam splitter reflects the second output laser pulse to the outside of the mode-locked fiber laser device.

Abstract: A communication system includes client devices that detect erroneous interactions with touch screen Graphical User Interfaces (GUIs) of software apps and transmit information about the erroneous interactions to servers which aggregate the information to identify erroneous interactions that occur at a significant rate across a population of devices. The software apps are updated to reduce the likelihood of the identified erroneous interactions and the updated versions of the apps are deployed to the client devices.

Abstract: A laser device with a ring laser resonator includes a polarization maintaining (PM) fiber, a first quarter waveplate, and an optical isolator. The PM fiber has a light input end and a light output end and is configured to guide a first linearly polarized light with a first phase along a fast axis of the PM fiber from the light input end and a second linearly polarized light with a second phase along a slow axis of the PM fiber from the input end. The first quarter waveplate is disposed at the light output end of the PM fiber and configured to convert the first and the second linearly polarized lights into left-handed and right-handed (or right-handed and left-handed) circularly polarized lights, respectively. The optical isolator is configured to unidirectionally transmit a laser pulse in the ring laser resonator.