Abstract: A method and circuit for controlling an earphone, and a smart wrist-mounted device are provided. The method is applied to a wireless earphone including an earphone charging chip and an earphone Bluetooth chip. With the method, a power supply line between the earphone charging chip and the earphone Bluetooth chip remains in a connected state when it is detected that the wireless earphone is placed in the charging base, and the power supply line is disconnected when it is detected that the charging base is charging the wireless earphone to turn off the wireless earphone.

Abstract: Described herein are compounds that activate pyruvate kinase R, pharmaceutical compositions and methods of use thereof. These compounds are represented by Formula (I): wherein R1, R2, L1, and L2 are as defined herein.

Abstract: An intelligent stereo garage system based on Internet+ and a vehicle parking and pick-up method. The system includes a mobile APP (10), a cloud server (20), a computer system (30), a programmable logic controller (PLC) system (40), a stereo garage (50), and an all-in-one touch machine (60), where the all-in-one touch machine (60) is deployed next to the stereo garage (50), and the computer system (30) is deployed outside or inside the stereo garage (50). A fully-automatic parking method uses different parking and pick-up modes, which technically ensures that users can get their vehicles in time without hindering other users, and allows users to truly experience the system intelligence. This deeply embodies the smart city's idea of interconnecting everything with a mobile phone. The method largely solves problems such as parking difficulty, illegal parking, unauthorized charges, traffic jams, traffic noise, traffic accidents, and vehicle pollution.

Abstract: Disclosed is a nonlinear optimization method for parameters of ocean ecological dynamics model, comprising the following steps: acquiring a state variable set and a parameter set to be optimized; building an ocean ecological dynamics model; acquiring a final cost function equation group; solving the ocean ecological dynamics model to obtain numerical solutions of each state variable; acquiring a Hamilton function of the cost function equation group under a constraint condition, and acquiring an adjoint equation based on the Hamilton function; adjusting the parameter set to be optimized based on the adjoint equation to obtain an optimal parameter set.

Abstract: Disclosed in the present disclosure are a wireless playback device, a playback control method thereof, and a head-mounted wireless headset system. The device includes: a housing, a headband detection device, a processor, a power amplifier (PA) operational amplification device, and a speaker. The headband detection device collects connection condition data of a headband device and the housing. The processor is connected to the headband detection device and controls the PA operational amplification device to adjust an operation power mode of the speaker according to the connection condition data. The PA operational amplification device is connected to the processor and the speaker, respectively, and adjusts the operation power mode of the speaker according to control of the processor. Therefore, the function automatically switching the headphone function and a small speaker function is realized, and the user experience is improved.

Abstract: A battery system of a vehicle, a charging and discharging method, and a vehicle. The system includes an energy storage apparatus (1) and a direct current (DC) charging and discharging interface (2), where the energy storage apparatus (1) includes a first battery pack (17) and a second battery pack (18), and a first inter-battery switch (11) and a second inter-battery switch (12) are disposed between adjacent battery packs; an incoming line terminal (111) of the first inter-battery switch (11) is connected to a first electrode of the first battery pack (17); a second outgoing line terminal (113) of the second inter-battery switch (12) is connected to a second electrode of the energy storage apparatus (1); and a first electrode of the DC charging and discharging interface (2) is connected to the first electrode of the energy storage apparatus (1).

Abstract: A method and circuit for controlling an earphone, and a smart wrist-mounted device are provided. The method is applied to a wireless earphone including an earphone charging chip and an earphone Bluetooth chip. With the method, a power supply line between the earphone charging chip and the earphone Bluetooth chip remains in a connected state when it is detected that the wireless earphone is placed in the charging base, and the power supply line is disconnected when it is detected that the charging base is charging the wireless earphone to turn off the wireless earphone.

Abstract: Disclosed in the present disclosure are a wireless playback device, a playback control method thereof, and a head-mounted wireless headset system. The device includes: a housing, a headband detection device, a processor, a power amplifier (PA) operational amplification device, and a speaker. The headband detection device collects connection condition data of a headband device and the housing. The processor is connected to the headband detection device and controls the PA operational amplification device to adjust an operation power mode of the speaker according to the connection condition data. The PA operational amplification device is connected to the processor and the speaker, respectively, and adjusts the operation power mode of the speaker according to control of the processor. Therefore, the function automatically switching the headphone function and a small speaker function is realized, and the user experience is improved.

Abstract: An intelligent stereo garage system based on Internet+ and a vehicle parking and pick-up method. The system includes a mobile APP (10), a cloud server (20), a computer system (30), a programmable logic controller (PLC) system (40), a stereo garage (50), and an all-in-one touch machine (60), where the all-in-one touch machine (60) is deployed next to the stereo garage (50), and the computer system (30) is deployed outside or inside the stereo garage (50). A fully-automatic parking method uses different parking and pick-up modes, which technically ensures that users can get their vehicles in time without hindering other users, and allows users to truly experience the system intelligence. This deeply embodies the smart city's idea of interconnecting everything with a mobile phone. The method largely solves problems such as parking difficulty, illegal parking, unauthorized charges, traffic jams, traffic noise, traffic accidents, and vehicle pollution.

Abstract: Methods and apparatuses are described for automatic validation of applications on synchronized mobile devices. A server receives a command associated with a mobile application and a first image file corresponding to a current view of the application from a client computing device. The server transmits the command to a plurality of mobile devices coupled to the server. Each mobile device accesses the application and performs the command against the application. The server receives a second image file from each mobile device that corresponds to a current view of the mobile application on the mobile device. The server extracts a first set of text segments from predefined areas of the first image file and second sets of text segments from predefined areas of each second image file. The server compares the first set and each second set to determine whether a difference exists between the first set and each second set.

Abstract: Methods and apparatuses are described for automatic validation of applications on synchronized mobile devices. A server receives a command associated with a mobile application and a first image file corresponding to a current view of the application from a client computing device. The server transmits the command to a plurality of mobile devices coupled to the server. Each mobile device accesses the application and performs the command against the application. The server receives a second image file from each mobile device that corresponds to a current view of the mobile application on the mobile device. The server extracts a first set of text segments from predefined areas of the first image file and second sets of text segments from predefined areas of each second image file. The server compares the first set and each second set to determine whether a difference exists between the first set and each second set.