Abstract: The present application provides a device delay calibration method, a terminal device and a storage medium. The terminal device communicates with a device group, and the method includes: sending a preset instruction to at least one device in the device group, and receiving a feedback signal corresponding to the preset instruction from the at least one device; calculating a round-trip delay of a signal transmission between the terminal device and the at least one device according to the preset instructions and the feedback signal; based on the round-trip delay, calculating a delay determination base corresponding to the at least one device; performing a delay calibration on the at least one device according to the delay determination base. The above method is used to enable the device group to perform a network synchronization when the device group does not have a timer or the timer is inaccurate.

Abstract: The present disclosure relates to the technical field of display devices, and in particular to a light emitting diode (LED) lamp panel and a backlight module. The LED lamp panel includes a base plate, light-emitting chips are electrically connected to the base plate, the light-emitting chips are wrapped with sealant layers, and corresponding optical lens structures are arranged between the light-emitting chips. Within the optical lens structures, light rays undergo optical processing including refraction, reflection, total internal reflection, etc., and the light rays emitted laterally from the light-emitting chips are redirected by the optical lens structures, being reflected toward a region above the base plate to achieve uniform light mixing.

Abstract: The present disclosure relates to the technical field of light emitting diode (LED) packaging, and in particular to an LED package and an LED lamp bead. The LED package includes a reflector cup bracket hollow to form a housing space. A first adhesive layer, a second adhesive layer, and a color conversion layer arranged between the first adhesive layer and the second adhesive layer are arranged in the housing space. When the LED package is packaged with an LED chip, the color conversion layer can be directly used for cutting, and the LED package can be directly attached above the LED chip for color conversion, which not only ensures the color consistency of a device, but also avoids the failure of a film material contacting with water vapor, thereby saving the cost of the entire film material.

Abstract: A changed polarity complement of a first gate duty cycle command for a next cycle of a carrier wave is generated based on the first gate duty cycle command for a current cycle, the first gate duty cycle command for the next cycle, a second gate duty cycle command for the current cycle, and the second gate duty cycle command for the next cycle. A switch of an inverter is operated according to the changed polarity complement of the first gate duty cycle command.

Abstract: An electric drive system includes a power electronics module with a prefabricated DC bus bar assembly. The prefabricated DC bus bar assembly includes a molded bleed resistor which serves two different functions. First, it dissipates energy from a capacitor when the battery is disconnected. Secondly, it physically supports the positive bus bar and the negative bar with respect to one another.

Abstract: A control method for an oxygen generator includes following steps: S101, performing S102 when the first physical sign data meets one of preset threshold conditions, otherwise performing S104; S102, switching the oxygen generator to a direct current oxygen outlet mode, and using the first model to output a first opening adjustment value of the direct current oxygen outlet solenoid valve; S103, adjusting an opening of the direct current oxygen outlet solenoid valve to the first opening adjustment value in the first preset time period B, S104, switching the oxygen generator to a pulse oxygen outlet mode; and S105, using a second model to output the second opening adjustment value when the pulse oxygen outlet solenoid valve is opened.

Abstract: Embodiments provide a method for transmitting indication information. The method includes: a first device generates first indication information, where the first indication information includes information about a format of a channel occupancy time of the first device, the channel occupancy time of the first device includes one or more sub-periods, the one or more sub-periods are used for uplink transmission, downlink transmission, flexible transmission, or transmission interruption, and a sub-period for transmission interruption can be used for transmission by another device other than the first device; and the first device sends the first indication information. In an indication manner described in the embodiments, a device may obtain a format in a COT in advance, thereby reducing blind detection overheads, or may sleep in advance, to reducing energy consumption.

Abstract: A gas path control structure of an oxygen generator with nitrogen discharge and a gas path control structure of an oxygen generator integrating nitrogen discharge and pressure equalization are provided. The gas path control structure of an oxygen generator with nitrogen discharge includes a blowback valve seat, two check valves, a pulse valve seat and two solenoid valves. The gas path control structure of an oxygen generator integrating nitrogen discharge and pressure equalization includes a pulse valve seat, check valves, a blowback valve seat, a solenoid valve, an equalizing valve and a check valve seat.

Abstract: Provided are a method and apparatus for evaluating insulation performance of a submarine cable, and a medium. The method includes: obtaining a first measured dielectric loss value, first current-limiting resistance, and first insulation resistance of a submarine cable; substituting the above parameters into an expression of the first measured dielectric loss value to calculate a first actual dielectric loss value, where the expression of the first measured dielectric loss value is calculated based on a preset expression of a total dielectric loss value, and the expression of the total dielectric loss value includes a first product and the to-be-solved first actual dielectric loss value; and evaluating insulation performance of the submarine cable based on the first actual dielectric loss value to obtain an insulation performance evaluation result. The present disclosure can solve a problem of low reliability of the insulation performance evaluation result of the submarine cable.

Abstract: A detachable molecular sieve is provided, including an oxygen generator shell and a detachable pull ring. A sieve barrel is inserted into the oxygen generator shell, a sieve barrel cover plate is arranged on the sieve barrel, a pull ring connecting hole is formed on the sieve barrel cover plate, and the pull ring connecting hole is connected with the detachable pull ring.

Abstract: A changed polarity complement of a first gate duty cycle command for a next cycle of a carrier wave is generated based on the first gate duty cycle command for a current cycle, the first gate duty cycle command for the next cycle, a second gate duty cycle command for the current cycle, and the second gate duty cycle command for the next cycle. A switch of an inverter is operated according to the changed polarity complement of the first gate duty cycle command.

Abstract: The present disclosure relates to signal transmission methods, devices, and systems. One example method includes sending, by a network device, a plurality of synchronization signal/physical broadcast channel (SS/PBCH) blocks in one or more burst set windows, where the one or more burst set windows include a plurality of candidate positions that are used to transmit the plurality of SS/PBCH blocks. Two or more SS/PBCH blocks sent at two or more positions of the plurality of candidate positions in the one or more burst set windows are quasi co-located (QCL) with each other and correspond to a same SS/PBCH block index.

Abstract: Disclosed are a lighting control method, a control system and a storage medium. The method includes: acquiring a user behavior representing a user emotion; inputting the user behavior into an emotion prediction network for prediction to obtain a user emotion classification result, where the emotion prediction network is obtained by training through an algorithm based on an attention mechanism; and generating a control instruction according to the emotion classification result, where the control instruction is used for modulating a lighting mode of at least one lamp device. According to the disclosure, the user emotion classification result is obtained by analyzing and predicting the user behavior, the control instruction is generated according to the emotion classification result, and the control instruction is used for controlling the preset lighting mode of the lamp device.

Abstract: This application discloses a wireless communication method, including: receiving, by a network device, uplink transmission of a first terminal in first duration of channel occupancy duration of the first terminal, where the channel occupancy duration of the first terminal further includes second duration, and the second duration is later than the first duration; and performing, by the network device, downlink transmission in the second duration, where a sum of the first duration and the second duration is less than or equal to the channel occupancy duration of the first terminal. This application further discloses a network device and a terminal that correspond to the wireless communication method. By applying the method and devices, a resource obtained through contention by a terminal applied to an unlicensed frequency band can be properly used, to improve operating efficiency of the unlicensed frequency band.

Abstract: The present disclosure relates to signal transmission methods, devices, and systems. One example method includes sending, by a network device, a plurality of synchronization signal/physical broadcast channel (SS/PBCH) blocks in one or more burst set windows, where the one or more burst set windows include a plurality of candidate positions that are used to transmit the plurality of SS/PBCH blocks. SS/PBCH blocks sent at positions corresponding to at least two particular indexes have a quasi co-located (QCL) relationship.

Abstract: An electric drive system includes a power electronics module with a prefabricated DC bus bar assembly. The prefabricated DC bus bar assembly includes a molded bleed resistor which serves two different functions. First, it dissipates energy from a capacitor when the battery is disconnected. Secondly, it physically supports the positive bus bar and the negative bar with respect to one another.

Abstract: A large-scale in-situ dewatering treatment method and device for lake sludge are provided. The large-scale in-situ dewatering treatment method for lake sludge includes: step S1, sludge excavation: excavating sludge from a lake and transporting the sludge to a detention pond; step S2, in-situ detention: filtering the sludge in the detention pond to obtain filtered sludge; step S3, dewatering: transporting the filtered sludge to a dewatering workshop and performing deep dewatering on the filtered sludge to obtain mud blocks and wastewater; and step S4, environmental protection treatment: using the mud blocks to build an island near a dredging platform in the lake. The large-scale in-situ dewatering treatment method for lake sludge not only solves the problems of difficulty in selecting a temporary sludge disposal site and high capital investment costs in a traditional lake dredging operation, but also reduces the transportation cost of transporting sludge to a land.

Abstract: An electric drive system is actively controlled while an electrified vehicle is being towed. The inverter switches are manipulated to preclude exceeding a maximum voltage of a DC bus and also to preclude exceeding a maximum phase current magnitude. During a transition from an inverter off state to a short-circuit state, field-oriented control is utilized.

Abstract: A controller, responsive to a signal indicating deactivation of a vehicle and disconnection of a traction battery from an inverter, generates a d-axis current command for the inverter having a ramp portion that defines a rate of change in current magnitude that depends on an electric angle between a rotor and stator of an electric machine.