Abstract: The present disclosure discloses an acoustic output apparatus. The acoustic output apparatus may include an acoustic driver. The acoustic driver may include a diaphragm and a magnetic circuit structure. A front side of the acoustic driver may be formed at a side of the diaphragm away from the magnetic circuit structure. A rear side of the acoustic driver may be formed at a side of the magnetic circuit structure away from the diaphragm. The diaphragm may vibrate to cause the acoustic driver to radiate sound outward from the front side and the rear side of the acoustic driver. The acoustic output apparatus may further include a housing structure configured to carry the acoustic driver. One side of the front side and the rear side of the acoustic driver may form a cavity with the housing structure. The side of the acoustic driver forming the cavity may radiate the sound towards the cavity, and the other side of the acoustic driver may radiate the sound towards outside of the acoustic output apparatus.

Abstract: This application relates to an image acquisition method and apparatus, a device, and a storage medium, and relates to the field of image processing technologies. The method includes obtaining a first image, the first image being an image acquired by controlling an exposure time of an image acquisition component according to a brightness reference value; obtaining an exposure state of the first image; updating the brightness reference value according to the exposure state of the first image, to obtain an updated brightness reference value; controlling the exposure time of the image acquisition component according to the updated brightness reference value; and acquiring a second image.

Abstract: A programmable gain amplifier includes a first-stage operational transconductance amplifier (OTA), a second-stage OTA, a capacitor module, a clock oscillation circuit, and a correction circuit. An input terminal of the second-stage OTA is connected to an output terminal of the first-stage OTA. The capacitor module is connected between the output terminal of the first-stage OTA and an output terminal of the second-stage OTA. The clock oscillation circuit is connected to the output terminal of the first-stage OTA and the capacitor module, and is configured to perform charging and discharging of the capacitor module by an output current from the first-stage OTA to output a clock signal. The correction circuit is connected to the clock oscillation circuit and the capacitor module to adjust a capacitance of the capacitor module so that a clock frequency of the clock signal is consistent with a preset clock frequency.

Abstract: Sample analyzers and a method for controlling the sample analyzer are provided. The sample analyzer includes a reaction device, a detection device, a processor and a display. The reaction device is configured to obtain a reaction product. Multiple types of emitting lights are emitted after the irradiation light from the detection device irradiates the reaction product. An optical signal acquisition component is configured to acquire, in each light acquiring period, optical signals corresponding to a detection wavelength and at least one wavelength other than the detection wavelength for at least one type of emitting light. The processor is configured to calculate, for the at least one type of emitting light, optical data corresponding to the detection wavelength and the at least one wavelength other than the detection wavelength in each light acquiring period. The display is configured to display the optical data in multiple light acquiring periods.

Abstract: A robot swimming pool cleaner with a filter screen anti-blocking function includes a housing. The interior of the housing is provided with a filtering mechanism to separate a water inlet chamber and a water pump chamber, a deposition chamber is formed inside the housing, the housing is provided with a first opening communicated with the water inlet chamber, a second opening communicated with the water pump chamber, and a third opening communicated with the deposition chamber, the third opening is provided with a garbage filtering and collecting mechanism, the first opening is provided with a first one-way valve that may be opened towards an inner side of the housing, the third opening is provided with a second one-way valve that may be opened towards an outer side of the housing. The robot swimming pool cleaner has a self-cleaning function and is convenient for use.

Abstract: The present disclosure discloses a charging box including a first housing assembly. The first housing assembly may include a main box body with an opening at one end as an open end of the main box body and a support plate covering over the open end of the main box body. The support plate may be provided with one or more profiling grooves for accommodating earphones. The support plate may be provided with a first side edge and a second side edge opposite to each other. A depth of a portion of the profiling grooves near the first side edge may be greater than a depth of a portion of the profiling grooves near the second side edge.

Abstract: The present disclosure provides a bone conduction speaker. The bone conduction speaker may include a driving device and a panel. The driving device may be configured to generate a driving force, and the driving force is located in a straight line. The panel may be transmissibly connected to the driving device. The panel may be configured to conduct sound. A region through which the panel interacting with the user's body may have a normal line. The normal line may not be parallel to that straight line.

Abstract: The present disclosure provides glasses including: a glasses rim; a glasses temple comprising a control circuit or a battery; a rotating shaft configured to connect the glasses rim and the glasses temple, so that the glasses rim and the glasses temple are able to relatively rotate around the rotating shaft, the rotating shaft being disposed with a rotating shaft wiring channel along an axial direction; a connection wire passing through the rotating shaft wiring channel and extending to the glasses rim and the glasses temple, respectively; a speaker comprising an earphone core and being connected to the glasses temple, the control circuit or the battery driving the earphone core to vibrate to generate a sound through the connection wire; and at least two microphones disposed in the glasses temple or the speaker, the at least two microphones being located at positions with different distances from a mouth of a user.

Abstract: Disclosed are a water surface profile cleaning method and system of a robot swimming pool cleaner. The method includes: obtaining driving wheel power information according to the sensing information of the first water surface sensor and the sensing information of the second water surface sensor; obtaining cleaning route information of a robot swimming pool cleaner according to the driving wheel power information and preset angle information; and cleaning, by the robot swimming pool cleaner, a water surface profile according to a cleaning route. In the present application, a moving track problem and an up and down movement cleaning problem of a robot swimming pool cleaner at a water surface profile can be systematically solved.

Abstract: The present disclosure provides a bone conduction speaker. The bone conduction speaker may include a driving device and a panel. The driving device may be configured to generate a driving force, and the driving force is located in a straight line. The panel may be transmissibly connected to the driving device. The panel may be configured to conduct sound. A region through which the panel interacting with the user's body may have a normal line. The normal line may not be parallel to that straight line.

Abstract: The present disclosure provides a hair removing device, including: a reflector; a light source; a light-transmitting body; a heat dissipation assembly, being connected to the light-transmitting body and configured to absorb heat from the light-transmitting body; a cold drive assembly, being configured to absorb external air, then blow into at least two cooling channels, and expel the air out of the hair removing device; cooling channels, comprising a first cooling channel and a second cooling channel; wherein at least one of the light source, the reflector is disposed in the first cooling channel, and at least part of the heat dissipation is disposed in the second cooling channel. Such that heat of the light source is dissipated uniformly, the service life of the light source is extended. Further, the improved heat dissipation performance allows the user to use the hair removing device more comfortably.

Abstract: The present disclosure provides a bone conduction speaker. The bone conduction speaker may include a driving device and a panel. The driving device may be configured to generate a driving force, and the driving force is located in a straight line. The panel may be transmissibly connected to the driving device. The panel may be configured to conduct sound. A region through which the panel interacting with the user's body may have a normal line. The normal line may not be parallel to that straight line.

Abstract: This application discloses a method and apparatus for determining characteristics of a sound source. The method may include: acquiring a first position of a first virtual role controlled by an application client in a virtual scene; detecting, in a sound source detection area associated with the first position, a second position of a sound source virtual object in the virtual scene; determining transparency of a position mark that matches the sound source virtual object, according to a sound source distance between the first position and the second position, the position mark identifying the second position of the sound source virtual object; and displaying, on an interaction interface of the application client, the position mark of the sound source virtual object according to the transparency.

Abstract: Disclosed in the present invention is an oxygen-hydrogen integrated machine including a machine housing (1), where a molecular sieve oxygen generation module and an electrolytic hydrogen generation module are provided in the machine housing (1), the molecular sieve oxygen generation module and the electrolytic hydrogen generation module respectively output oxygen and hydrogen at the same gas pressure by an oxygen pressure regulating valve (28) and a hydrogen pressure regulating valve (17), an oxygen flow limiting hole (30) and a hydrogen flow limiting hole (18) are respectively provided at an output end of the oxygen pressure regulating valve (28) and an output end of the hydrogen pressure regulating valve (17), and a ratio of the cross-sectional areas of the oxygen flow limiting hole (30) and the hydrogen flow limiting hole (18) is greater than 24:1. The present invention avoids a uncontrollable risk when the oxygen and the hydrogen are mixed.

Abstract: The present application provides an image processing method, an intelligent terminal, and a storage medium. The processing method is applied to a processing device, and includes the following steps: first, acquiring an image data stream when acquiring a target image; and processing the image data stream according to an image processing instruction, determining or generating corresponding image processing information, and obtaining the target image. In this way, the target image can be quickly acquired, thereby effectively improving acquisition efficiency of the target image.

Abstract: Disclosed is a robot swimming pool cleaner with a convenient-to-replace battery, which includes a body. The body is provided with a garbage bin and an ejection bin having a top opening therein. The garbage bin communicates with an outside world through a sewage suction port. A bottom of the body is provided with a road wheel. A winding component and a battery module are sequentially installed in the ejection bin. An electric wire is wound on the winding component. The battery module and the waterproof sealed plug are detachably connected. The robot swimming pool cleaner further includes a control component which is respectively connected with the winding component and the battery module. According to the present application, improving the user experience and cleaning efficiency.

Abstract: A bone conduction speaker is provided herein. The bone conduction speaker may include a magnetic circuit component for providing a magnetic field, a vibration component located in the magnetic field, and a case. At least a part of the vibration component may convert an electrical signal into a mechanical vibration signal. The case may include a case panel facing a human body side and a case back opposite to the case panel, and accommodate the vibration component that causes the case panel and the case back to vibrate. A vibration of the case panel may have a first phase, and a vibration of the case back may have a second phase. When frequencies of the vibration of the case panel and the case back are within 2000 Hz to 3000 Hz, an absolute value of a difference between the first and the second phase(s) may be less than 60 degrees.

Abstract: This disclosure relates to a role conversion method and apparatus. The method may include displaying a virtual environment. A first virtual object and a second virtual object are being displayed in the virtual environment. The method may further include obtaining a role conversion instruction for the first virtual object and converting the first virtual object to a target virtual object having a same role as the second virtual object in response to the role conversion instruction. The method may further include assigning a role attribute the same as that of the second virtual object to the target virtual object.