Abstract: A method and system for diagnosis of error coding faults from multiple instruments are provided. The method includes acquiring sampling data series of a combination of instruments in a petrochemical process, determining a type of the sampling data series, and performing error diagnosis according to the type. The present disclosure can solve the error coding problem in a multi-instrument cooperation mode and provide safe and reliable data guarantee for safe and efficient petrochemical production.

Abstract: The present disclosure relates to a passive outlier-tolerant and active outlier-tolerant learning method with abnormal samples and a system thereof. The method includes the following steps: (1) judging the distribution of abnormal samples in a train set, and calling a corresponding outlier-tolerant algorithm based on the distribution to carry out feature learning on the sample feature quantity in the train set to obtain an outlier-tolerant learning result; (2) training an initial learning model by using the outlier-tolerant learning result to obtain an intermediate learning model; (3) processing the test set by a preset outlier-correction algorithm to obtain an outlier-corrected test set; (4) testing the intermediate learning model using the outlier-corrected test set to obtain a final learning model. The scheme of the present disclosure can improve the passive outlier tolerance and active outlier tolerance of a machine learning process to abnormal samples.

Abstract: This application provides encoding and decoding methods and apparatuses for an enhancement layer. The encoding method includes: an encoder obtains a reconstructed block of a base layer of a to-be-encoded picture block; calculates a difference between corresponding pixels in the to-be-encoded picture block and the reconstructed block of the base layer to obtain a residual block of an enhancement layer of the to-be-encoded picture block; determines a transform-block partitioning manner of the residual block of the enhancement layer; and performs transformation on the residual block of the enhancement layer based on the transform-block partitioning manner. This application can simplify a processing procedure for the encoder and improve encoding efficiency of the encoder. In addition, compression efficiency of the residual block can be improved more effectively by using an adaptive TU partitioning method.

Abstract: In a picture processing method, when receiving a first picture in a video stream, a decoder side determines, based on a base layer of the 1st sub-picture of the first picture, whether the first picture meets a first preset condition; and the decoder side sends a second picture within a display time period of the first picture for displaying if the first picture meets the first preset condition, where the second picture is a picture that is in the video stream and that is sent within a first display time period for displaying.

Abstract: An image encoding and decoding method includes obtaining a to-be-encoded image, where the to-be-encoded image is divided into a base layer and at least one enhancement layer; when feedback information sent by a decoder side is received, determining a reconstructed image corresponding to a frame sequence number and a layer sequence number indicated in the feedback information as a first reference frame, and performing inter encoding on the base layer based on the first reference frame to obtain a bitstream of the base layer; encoding the at least one enhancement layer to obtain a bitstream of the at least one enhancement layer; and sending the bitstream of the base layer and the bitstream of the at least one enhancement layer to the decoder side, where the bitstream of the base layer carries coding reference information.

Abstract: Embodiments of this application provide a video transmission method, apparatus, and system, to reduce an end-to-end transmission delay of video data. The method includes: A transmit end obtains a first frame of image of the video data, where the first frame of image includes a plurality of sub-images, and the plurality sub-images include a first sub-image and a second sub-image; the transmit end performs layered encoding on the first sub-image to obtain a plurality of layers of bitstreams of the first sub-image; the transmit end sends the plurality of layers of bitstreams of the first sub-image to a receive end; the receive end decodes the plurality of layers of bitstreams of the first sub-image to obtain the first sub-image.

Abstract: A data block encoding method and apparatus are provided. The data block encoding method includes: determining whether a data block includes an intensive edge region, where the intensive edge region is a region including an image distortion generated by ring noise, and the data block is a data block in a to-be-encoded image; and when the data block includes an intensive edge region, reducing a value of a quantization parameter used for encoding the data block, and encoding the data block by using a reduced value of the quantization parameter, or dividing the data block into multiple coding units of different sizes according to different coding layers, adjusting rate-distortion costs of the multiple coding units of different sizes, and encoding the data block by using a coding unit with a minimum rate-distortion cost obtained after the adjustment.

Abstract: A bismuth and magnesium co-doped lithium niobate crystal includes Li2CO3, Nb2O5, Bi2O3 and MgO, wherein the molar ratio of [Li] and [Nb] is 0.90-1.00, the molar percentage of Bi2O3 in the mixture is 0.25-0.80%, and the molar percentage of MgO in the mixture is 3.0-7.0%. The bismuth and magnesium co-doped lithium niobate crystal has enhanced photorefraction, improved photorefractive sensitivity, shortened holographic grating saturation writing time, and the photorefractive diffraction efficiency can reach up to 17%. The response time is only 170 ms, when the holographic storage experiment is carried out using 488 nm continuous laser. Therefore, this crystal can be used in the field of holographic imaging.

Abstract: The invention discloses a coiling device and a household appliance having same. The coiling device is configured to coil a power cord. The power cord comprises a first segment (91) and a second segment (92) connected to each other. The coiling device includes: a first coiling bobbin (10), provided with a first coiling groove, the first segment of the power cord being wound in the first coiling groove; and a second coiling bobbin (20), connected with the first coiling bobbin fixedly and provided with a second coiling groove, the second segment of the power cord being wound in the second coiling groove, and a winding direction of the second segment of the power cord being identical to that of the first segment of the power cord.

Abstract: A data block encoding method and apparatus are provided. The data block encoding method includes: determining whether a data block includes an intensive edge region, where the intensive edge region is a region including an image distortion generated by ring noise, and the data block is a data block in a to-be-encoded image; and when the data block includes an intensive edge region, reducing a value of a quantization parameter used for encoding the data block, and encoding the data block by using a reduced value of the quantization parameter, or dividing the data block into multiple coding units of different sizes according to different coding layers, adjusting rate-distortion costs of the multiple coding units of different sizes, and encoding the data block by using a coding unit with a minimum rate-distortion cost obtained after the adjustment.

Abstract: Disclosed is an air deflector driving device, comprising a driving case and connecting rod (3). One side of the driving case is provided with a protruding opening (11), the connecting rod (3) is slidably provided in the driving case, and a tip (31) of the connecting rod (3) is limited in the direction perpendicular to the direction of movement of the connecting rod by means of the limiting structure. Furthermore, also disclosed is an indoor air conditioning unit using the driving device.

Abstract: A dual-stage enthalpy-increasing air-conditioning system comprises a compressor (1), an outdoor heat exchanger (3), a first throttle component (8) and an indoor heat exchanger (11), wherein the components are connected via pipelines; the system also comprises a flash evaporator (6) and a second throttle component (7); a first connecting port of the flash evaporator (6) is connected with a first connecting port of the first throttle component (8); a second connecting port of the first throttle component (8) is connected with the indoor heat exchanger (11); a second connecting port of the flash evaporator (6) is connected with an air supplementing port of the compressor (1); a third connecting port of the flash evaporator (6) is connected with a first connecting port of the second throttle component (7); a second connecting port of the second throttle component (7) is connected with the outdoor heat exchanger (3).

Abstract: A bismuth and magnesium co-doped lithium niobate crystal includes Li2CO3, Nb2O5, Bi2O3 and MgO, wherein the molar ratio of [Li] and [Nb] is 0.90-1.00, the molar percentage of Bi2O3 in the mixture is 0.25-0.80%, and the molar percentage of MgO in the mixture is 3.0-7.0%. The bismuth and magnesium co-doped lithium niobate crystal has enhanced photorefraction, improved photorefractive sensitivity, shortened holographic grating saturation writing time, and the photorefractive diffraction efficiency can reach up to 17%. The response time is only 170 ms, when the holographic storage experiment is carried out using 488 nm continuous laser. Therefore, this crystal can be used in the field of holographic imaging.

Abstract: A panel component (1) comprises a plastic substrate (3), a display (2), and a metal panel (6) covering an outer surface of the plastic substrate (3). The metal panel (6) is fixed on the plastic substrate (3). The display (2) is mounted on the plastic substrate (3) through a display mounting structure. A light-transmitting structure is arranged in the metal panel (6) in a region corresponding to the location of the display (2). The metal panel (6) enables the panel component (1) to have good decorating effect, and the light-transmitting structure ensures clear display. Further disclosed are an air conditioner provided with the panel component (1) and a method for manufacturing the air conditioner.

Abstract: The invention discloses a coiling device and a household appliance having same. The coiling device is configured to coil a power cord. The power cord comprises a first segment (91) and a second segment (92) connected to each other. The coiling device includes: a first coiling bobbin (10), provided with a first coiling groove, the first segment of the power cord being wound in the first coiling groove; and a second coiling bobbin (20), connected with the first coiling bobbin fixedly and provided with a second coiling groove, the second segment of the power cord being wound in the second coiling groove, and a winding direction of the second segment of the power cord being identical to that of the first segment of the power cord.

Abstract: A panel component (1) comprises a plastic substrate (3), a display (2), and a metal panel (6) covering an outer surface of the plastic substrate (3). The metal panel (6) is fixed on the plastic substrate (3). The display (2) is mounted on the plastic substrate (3) through a display mounting structure. A light-transmitting structure is arranged in the metal panel (6) in a region corresponding to the location of the display (2). The metal panel (6) enables the panel component (1) to have good decorating effect, and the light-transmitting structure ensures clear display. Further disclosed are an air conditioner provided with the panel component (1) and a method for manufacturing the air conditioner.

Abstract: A dual-stage enthalpy-increasing air-conditioning system comprises a compressor (1), an outdoor heat exchanger (3), a first throttle component (8) and an indoor heat exchanger (11), wherein the components are connected via pipelines; the system also comprises a flash evaporator (6) and a second throttle component (7); a first connecting port of the flash evaporator (6) is connected with a first connecting port of the first throttle component (8); a second connecting port of the first throttle component (8) is connected with the indoor heat exchanger (11); a second connecting port of the flash evaporator (6) is connected with an air supplementing port of the compressor (1); a third connecting port of the flash evaporator (6) is connected with a first connecting port of the second throttle component (7); a second connecting port of the second throttle component (7) is connected with the outdoor heat exchanger (3).