Abstract: A mobile power pack combination of the present invention includes a first mobile power pack and at least a second mobile power pack. The first mobile power pack has a first housing. The first housing is disposed with a first charging unit and a first probe-type connector connected to the first charging unit. The second mobile power pack has a second housing. The second housing is disposed with a second charging unit, a first probe-type connector and a second probe-type connector connected to the second charging unit. When the second mobile power pack is stacked on the first mobile power pack, the second probe-type connector of the second mobile power pack is connected with the first probe-type connector of the first mobile power pack to make electric current conduct. Therefore, the mobile power pack combination provides charging function based on stackable technology and is convenient to carry.

Abstract: A hydrogen filling station control system and method of use, and a hydrogen filling station comprising the system. The system includes: a first compressor, a second compressor, a first storage tank, a detector and a controller, wherein discharge pressure of the first compressor is smaller than a gas storage pressure of the first storage tank, discharge pressure of the second compressor is larger than or equals the gas storage pressure of the first storage tank, the first compressor and the second compressor are connected to the first storage tank, and the detector is configured to detect pressure of the first storage tank. The controller is configured to control the first compressor to inflate and pressurize the first storage tank and control, when the first storage tank equals a first preset pressure, the second compressor to inflate and pressurize the first storage tank. Reduced costs and power consumption can be realized.

Abstract: An apparatus is disclosed for transceiving signals in multiple modes. In example implementations, an apparatus includes a transceiver that includes a first amplifier; a mixer having at least one input node and at least one output node, with the at least one input node coupled to the first amplifier; and a second amplifier coupled to the at least one output node of the mixer. The transceiver also includes a first register coupled to the first amplifier and a second register coupled to the second amplifier. The transceiver further includes at least one memory realizing a lookup table. The at least one memory is coupled to the first register and the second register. The lookup table includes a first portion corresponding to a first mode of the transceiver and a second portion corresponding to a second mode of the transceiver.

Abstract: A hydrogen fueling control device and method comprising step S100, obtaining initial parameters of a vehicle-mounted hydrogen reservoir, wherein the initial parameters comprise volume, initial hydrogen pressure, and initial ambient temperature of the vehicle-mounted hydrogen reservoir; step S200, computing a fueling rate and a target pressure for hydrogen fueling according to the initial parameters, wherein the computed fueling rate and target pressure cause the temperature of hydrogen during a hydrogen fueling process to be within a preset safe range; and step S300, controlling a hydrogen fueling station to fuel hydrogen to the vehicle-mounted hydrogen reservoir at the computed fueling rate to the computed target pressure.

Abstract: A method for sensing an environment in which an unmanned aerial vehicle (UAV) is configured to operate includes, with aid of one or more processors onboard the UAV individually or collectively, obtaining video data of the environment that is collected using a binocular video camera mounted in a forward-looking direction of the UAV, encoding the video data to generate stereoscopic video data, and transmitting the stereoscopic video data to a terminal remote to the movable object.

Abstract: A method for generating a first person view (FPV) of an environment includes, with aid of one or more processors individually or collectively, analyzing stereoscopic video data of the environment to determine environmental information and generating augmented stereoscopic video data of the environment by fusing the stereoscopic video data and the environmental information.

Abstract: Described herein are systems, methods, storage media, and computer programs for tracking a plurality of feature points in a first image and a second image. In one embodiment, a first layer of a first image pyramid for the first image and a first layer of a second image pyramid for the second image are obtained. Based on expected pixel locations of the plurality of feature points in the first layer of the second image pyramid, a feature point is selected from the plurality of feature points. For the feature point, a first pixel in the first layer of the first image pyramid is determined, and a second pixel in the first layer of the second image pyramid is determined, where the first pixel substantially matches the second pixel.

Abstract: Provided are a display panel, a display device and a driving method of the display panel. In the same row of pixel units, first control terminals of data write modules of sub-pixels having a first color are connected to the same first scanning line; and in the same row of pixel units, first control terminals of data write modules of sub-pixels having other colors except the first color are connected to the same second scanning line. The data write module is configured to provide a data signal cached by a data line for the drive transistor. In the same row of the pixel units, within time of one frame of a picture, time of providing data signals for data lines connected to sub-pixels having the first color is within time of writing data signals cached by data lines into pixel circuits of sub-pixels having the other colors.

Abstract: It discloses a grouting bolt-cable composite beam and supporting method for advanced support of fractured surrounding rock in deep coal mines. The quadrate plates are fixed at both ends of the steel beam, the anchor cable holes are arranged in the center of the steel beam and the quadrate plates, and the diameter of anchor bolt holes should be larger than that of the grouting cables. There are four anchor bolt holes on each quadrate plate, and each anchor bolt hole corresponds to a anchor plate, the horizontal surface of the anchor plate is close to the quadrate plate, and the arc parts of the four anchor plates are all facing the center of the quadrate plate.

Abstract: A triboelectric nanogenerator structure is provided. The triboelectric nanogenerator structure is composed of an upper electrode layer, a lower triboelectric layer, a lower electrode layer and an electric connecting member. The upper electrode layer is composed of a hybrid gel. The lower triboelectric layer corresponding to the upper electrode layer has a first surface and a second surface, and the first surface faces toward the upper electrode layer. The lower electrode layer is disposed at the second surface. The electric connecting member connects the upper electrode layer to the lower electrode layer.

Abstract: A display panel having a first display region and second display region is provided. The display panel includes a sub-pixel array that includes a plurality of sub-pixels in an array and distributed in the first display region and the second display region. A non-light-emitting region in the second display region has a greater light transmittance than a non-light-emitting region in the first display region. Among sub-pixels emitting a same color of the plurality of sub-pixels in the first display region and the second display region, a width-to-length ratio of a driving transistor in the pixel circuit of a sub-pixel in the second display region is greater than a width-to-length ratio of a driving transistor in the pixel circuit of a sub-pixel in the first display region.

Abstract: A method for processing flight data includes acquiring, by detecting devices carried by one or more first aerial vehicles, environmental data associated to a position region; and sending, by the one or more first aerial vehicles, the environmental data to an external device. The environmental data is configured to generate a flight control instruction for controlling an operation of a second aerial vehicle while the second aerial vehicle is within the position region.

Abstract: A data processing method includes reading compressed a neural network parameter for a neural network from a memory, decompressing the compressed neural network parameter to generate a decompressed neural network parameter, and processing target data according to the decompressed neural network parameter.

Abstract: Convolutional neural network-based image processing method and device are provided. The device includes a first on-chip memory and an arithmetic circuit configured to read a 3D feature map from a first on-chip memory by blocks the 3D feature map being divided into L blocks, perform processing of the current layer of the convolutional neural network on the 3D feature map by blocks; and store an output result of the current layer to the first on-chip memory. The first on-chip memory includes: S first storage spaces, each being used to store one of the L blocks included in the 3D feature map as input data of the current layer; and R second storage spaces, each being used to store output data of the current layer of one of the L blocks. L, S and R are integers greater than 1, and S and R are less than L.

Abstract: A system for generating and verifying a matrix barcode includes a generating device for generating a matrix barcode by encoding a target data set and a verification data set, and a verifying device. The matrix barcode has a verification zone presenting verification information that is related to the verification data set. The verifying device decodes the matrix barcode to obtain the target data set and the verification data set, obtains the verification information from the verification zone in the matrix barcode, and determines whether the verification information obtained from the verification zone is related to the verification data set obtained by decoding the matrix barcode.

Abstract: The present disclosure provides an optical flow tracking device. The device includes an image pyramid establishing circuit configured to establish a first image pyramid of a first image and a second image pyramid of a second image. The first image pyramid includes one or more image layers, and the second image pyramid includes one or more image layers. The device further includes an optical flow tracking circuit configured to perform an optical flow tracking processing on a kth image layer in the first image pyramid and a kth image layer in the second image pyramid to acquire an optical flow estimator of the second image in the kth image layer. K is an integer. The optical flow tracking circuit is configured to calculate an optical flow of the second image by using the optical flow estimator of the second image in the kth image layer.

Abstract: A method for processing video data of an environment includes, with aid of one or more processors individually or collectively, obtaining in or near real-time a reference position of an imaging device located on a movable object based on one or more previously traversed positions of the imaging device, and modifying an image frame in the video data to obtain a modified image frame based on the reference position of the imaging device and an actual position of the imaging device at which the image frame is taken. The one or more previously traversed positions are obtained using at least one sensor on the movable object. The video data is acquired by the imaging device.

Abstract: Described herein are systems, methods, storage media, and computer programs that support data flow scheduling between processors. In one embodiment, a processor for processing data is disclosed. The processor comprises a flow classifier and a first set of circuits. The flow classifier is configured to assign a flow identifier to a data flow. The first set of circuits is configured to process a plurality of data blocks of the data flow and determine whether to provide information on the processing of the plurality of data blocks to another processor based on the flow identifier.

Abstract: A data processing method includes reading, from a first storage unit into a second storage unit, one or more entire layers of data at a top of one or more image pyramids having a plurality of layers; computing, according to to-be-processed data at each layer stored in the second storage unit, a processing result at each layer stored in the second storage unit; and reading and processing, in sequence, data at one or more remaining layers of the one or more image pyramids from the first storage unit. The one or more image pyramids include a first original pyramid of a first image and a second original pyramid of a second image.

Abstract: A processor includes a computation array and a cache array, and a bit width of each cache in the cache array is equal to a bit width of a data unit processed by the computation array. A data access method includes: reading M*N data units from a memory to N input caches in the cache array with a first access bit width, where the first access bit width is N times a bit width of each cache, data units in one column of the M*N data units are stored in one of the N input caches, and M and N are positive integers greater than 1; and reading the data units in the N input caches to the computation array with a second access bit width, where the second access bit width is the bit width of each cache.