Abstract: This application provides a communication device, a base station, and a communication system. The communication device includes a power divider, a coupler group, and a multiplexer that are sequentially connected. The power divider is connected to the coupler group via at least two first paths. The power divider may divide a light beam into at least two split light beams, each split light beam is transmitted to the coupler group via one first path, and a phase difference and a time difference exist in transmission of any two split light beams in corresponding first paths.

Abstract: A multiplier is configured to implement a binary single-multiplication operation A[m1?1:0]×B[m2?1:0], or an accumulated sum operation of 2N binary multiplications A0[m3?1:0]×B0[m4?1:0]. The multiplier includes P precoders, Q groups of fusion coders, and a compressor. The P precoders and the Q groups of fusion coders are configured to code a first value and a second value in the single-multiplication operation or the multi-multiplication accumulated sum operation, and output a plurality of partial products to the compressor. In an example implementation, the compressor may be configured to compress the plurality of partial products corresponding to the single-multiplication operation or the multi-multiplication accumulated sum operation to obtain two accumulated values.

Abstract: A vehicle controller for tire blowout control, a control method for tire blowout control, and an electric vehicle. The vehicle controller is used in an electric vehicle. The electric vehicle includes a rear-wheel steering system, and the rear-wheel steering system is configured to control steering angles of rear wheels of the electric vehicle. The vehicle controller is configured to: after a tire of a front wheel of the electric vehicle blows out in a traveling process in which a vehicle speed of the electric vehicle is greater than a preset vehicle speed, control the rear-wheel steering system to adjust the steering angles of the rear wheels. According to the embodiments, vehicle stability control may be quickly implemented to effectively control the electric vehicle upon blowout of the tire, thereby improving safety of the vehicle.

Abstract: Systems, methods, and apparatuses are disclosed that determine a spark timing correction for an internal combustion engine during a transient event. The spark timing correction delays the spark timing to reduce or mitigate knock. The spark timing correction is based on a lambda difference between a steady state lambda that is based on engine speed and engine torque and a feedback lambda from operation of the engine. The feedback lambda can be based on a calculated lambda or a sensed lambda.

Abstract: The present disclosure discloses a trajectory generation method, apparatus, electronic device, storage medium and program, wherein the method includes: acquiring driving-related data corresponding to a current vehicle; inputting first driving-related data in the driving-related data to a pre-created target trajectory generation model to obtain a candidate driving trajectory corresponding to the current vehicle; inputting second driving-related data in the driving-related data into a pre-created target driving correction model to obtain corresponding driving correction information; and correcting the candidate driving trajectory based on the driving correction information to obtain a corresponding target driving trajectory, such that the current vehicle automatically drives according to the target driving trajectory.

Abstract: A conveyor belt lifting mechanism which includes an L-shaped arm, a telescopic arm, and a supporting shaft and an online operation and maintenance robot for a pipe belt conveyor are provided. One end of the L-shaped arm is rotatable, an axial direction of a rotating shaft is parallel to a conveying direction of a conveyor belt, the telescopic arm is slidably connected to the other end of the L-shaped arm, and the telescopic arm extends and retracts in an extension direction of the L-shaped arm. A universal rotary driving portion is connected to an end of the telescopic arm, the supporting shaft is fixed to an output end of the universal rotary driving portion, and two supporting rollers are arranged on the supporting shaft. An included angle between rotating shafts of the two supporting rollers is the same as that between two adjacent idlers in the pipe belt conveyor.

Abstract: The present invention is a vehicle window glass (i.e., vehicle door window) breaking system. The system integrates a glass-breaking mechanism with a door handle that offers manual or automatic activation. A concealed button near the handle facilitates manual activation and automatic activation employs sensors autonomously triggered or actuated by water buoyancy or collision impact. The system features a pin (i.e., cylindrical pin) affixed to the edge of the window glass (i.e., vehicle door window), with a driving cable passing through an aperture in the pin. A cable jacket encases the cable, guiding its movement and transmitting pulling force efficiently. When activated, the pin (i.e., cylindrical pin) rotates, generating a shearing force that breaks the glass. The glass installation base anchors the cable jacket, stabilizing the system and distributing stresses.

Abstract: An embodiment involves introducing heterocyclic 1,3-diazole (HDZ) into a PEDOT-(PSS) film, which significantly reduces the Coulomb force within the PEDOT-(PSS) and forms hydrogen bonds with PSS, thereby improving the morphology, optical properties, carrier mobility, and polymer structure of the film. The use of an optimized PEDOT-(NHDZ:PSS) film as an HTL for OPD has the effects such as better noise suppression, higher detectivity for weak light at low frequencies, wider bandwidth, and faster response speed for optical signals, and by utilizing these characteristics, the PEDOT-(NHDZ:PSS)-based OPD may successfully achieve diagnosis of cardiovascular-related diseases.

Abstract: Embodiments of this application provide a voice call method and apparatus, and relate to the field of terminal technologies. The method includes: obtaining, by the first terminal device, azimuth information between the first terminal device and the second terminal device based on location information and orientation information of the first terminal device and location information of the second terminal device; and processing, by the first terminal device, a voice signal from the second terminal device based on the azimuth information to obtain a first-channel voice signal and a second-channel voice signal. Then, a first headphone may play the first-channel voice signal and the second-channel voice signal in a first channel and a second channel, respectively. In this way, a user can sense an azimuth status of a peer end during a voice call based on voice fed back by a headphone.

Abstract: A method for creating a configuration knowledge base, includes: determining a hierarchical structure between a plurality of modules in a product family based on the plurality of modules; determining a knowledge package of each module based on the hierarchical structure; and releasing the knowledge package of each module in the product family to a configuration knowledge base, to obtain a configuration knowledge base of the product family. The hierarchical structure indicates a hierarchical relationship between a parent module and a child module in the plurality of modules. Each parent module includes one or more child modules. A knowledge package of the parent module includes an input interface algorithm of the child module associated with the parent module.

Abstract: The present invention provides a method and an apparatus for detecting unmanned aerial vehicle conflict based on an airspace digital raster, and a storage medium, wherein the method comprises: establishing an airspace discrete subdivision raster model; constructing a conversion relationship between a raster code rule and longitude and latitude coordinates and grid codes; establishing an unmanned aerial vehicle safety protection area, and performing gridding expression on the unmanned aerial vehicle in the airspace; establishing a coordinate system to convert the grid codes of the unmanned aerial vehicle into coordinates; calculating the Minkowski difference set of two blocks using the GJK algorithm; and determining whether the unmanned aerial vehicle conflicts or not according to the Minkowski difference set.

Abstract: A conveyor belt lifting mechanism which includes an L-shaped arm, a telescopic arm, and a supporting shaft and an online operation and maintenance robot for a pipe belt conveyor are provided. One end of the L-shaped arm is rotatable, an axial direction of a rotating shaft is parallel to a conveying direction of a conveyor belt, the telescopic arm is slidably connected to the other end of the L-shaped arm, and the telescopic arm extends and retracts in an extension direction of the L-shaped arm. A universal rotary driving portion is connected to an end of the telescopic arm, the supporting shaft is fixed to an output end of the universal rotary driving portion, and two supporting rollers are arranged on the supporting shaft. An included angle between rotating shafts of the two supporting rollers is the same as that between two adjacent idlers in the pipe belt conveyor.

Abstract: The application relates to an anti-back-transfer intake structure of a rotating detonation combustion chamber including a Tesla valve communicating with the rotating detonation combustion chamber and arranged at an inlet of the rotating detonation combustion chamber. The Tesla valve includes a casing and a flow passage, the casing is coaxially connected with an outer wall of the rotating detonation combustion chamber, the flow passage is arranged in the casing, and the flow passage has an inlet end for introducing air, and an outlet end connected with an annular passage of the rotating detonation combustion chamber.

Abstract: Embodiments of this application provide a voice call method and apparatus, and relate to the field of terminal technologies. The method includes: obtaining, by the first terminal device, azimuth information between the first terminal device and the second terminal device based on location information and orientation information of the first terminal device and location information of the second terminal device; and processing, by the first terminal device, a voice signal from the second terminal device based on the azimuth information to obtain a first-channel voice signal and a second-channel voice signal. Then, a first headphone may play the first-channel voice signal and the second-channel voice signal in a first channel and a second channel, respectively. In this way, a user can sense an azimuth status of a peer end during a voice call based on voice fed back by a headphone.

Abstract: The application relates to an anti-back-transfer intake structure of a rotating detonation combustion chamber including a Tesla valve communicating with the rotating detonation combustion chamber and arranged at an inlet of the rotating detonation combustion chamber. The Tesla valve includes a casing and a flow passage, the casing is coaxially connected with an outer wall of the rotating detonation combustion chamber, the flow passage is arranged in the casing, and the flow passage has an inlet end for introducing air, and an outlet end connected with an annular passage of the rotating detonation combustion chamber.

Abstract: An electrochemical apparatus includes a battery management system, a battery unit, and a switch unit. The switch unit is electrically connected between the battery management system and the battery unit. The battery management system is configured to obtain a state of charge of the battery unit; and under a condition that the state of charge is less than a preset threshold and the electrochemical apparatus has not obtained a charging current transmitted by an external charging device, the battery management system outputs a first signal to the switch unit, and the switch unit switches off an electrical connection between the battery unit and the battery management system according to the first signal.

Abstract: A method and an apparatus for analyzing heart rate Variability (HRV), and use thereof are provided. A low-cost, portable and wearable signal acquisition device is utilized to acquire electrocardiography (ECG) signals of epilepsy patients for 24 hours before treatment, and a time domain index, a frequency domain index and a nonlinear index of the ECG during a long term and during a short term are calculated with a programmed HRV analysis method, and the efficacy of vagus nerve stimulation (VNS) treatment for patients with medically intractable epilepsy is accurately and efficiently predicted based on characteristic parameters for characterizing an effect level of the vagus nerve regulating the heart rate, i.e., vagus nerve activity, thereby avoiding unnecessary costs and avoiding the delay of the optimal treatment timing. In addition, the characteristic parameters obtained by the HRV analysis on the ECG may be utilized to clearly select VNS treatment indication patients.

Abstract: The application relates to an assembly for controlling detonation wave mode of a rotating detonation combustion chamber, which includes an inner barrel, an outer plate and at least one sectoral direction-changing block. The outer plate is sleeved outside the inner barrel. An annular cavity is formed between the outer plate and the inner barrel. At least one groove is arranged on one side of the outer plate close to the inner barrel. The groove wall comprises an arc edge and a straight edge. The groove is connected with the annular cavity. The sectoral direction-changing blocks are arranged in the grooves in one-to-one correspondence. An arc edge of the sectoral direction-changing block is positioned far away from the inner barrel.

Abstract: The present invention relates to an IPv6 wireless sensor network node mobility management method based on RPL routing protocol. The present invention achieves the following: first, placing an RSSI in an ACK frame so as to detect the mobile state of a node and improve the accuracy of mobile detection; second, on the premise of compatibility with an original RPL routing protocol, improving the options for DIS and DAO in selecting the optimal parent node and updating a routing table; and finally, designing a cache method to prevent messages sent to the mobile node from being lost in the process of moving, and designing a new 6LoWPAN header so as to complete message caching.