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63results about How to "Meet the needs of the scene" patented technology

Video stream playing control method, equipment and storage medium

The embodiment of the invention provides a video stream playing control method, equipment and a storage medium. In a process of playing a video stream in a playing area of a mobile display screen, themethod comprises the following steps: detecting a trigger event of a playing mode configuration control, and obtaining a play mode switching instruction, wherein a display entrance of the playing mode configuration control is located in the fixed menu bar area of the mobile display screen, the playing mode switching instruction indicates that the playing mode of the video stream is switched to atarget playing mode, the target playing mode at least comprises an automatic playing mode of automatically skipping to video content, and the video stream comprises multiple pieces of video content; setting the playing mode of the video stream as a target playing mode indicated by the playing mode switching instruction; and under the condition that the playing mode of the video stream is set to bean automatic playing mode, and if it is detected that the current video content is played completely, playing the next video content of the current video content. According to the method provided bythe embodiment of the invention, the operation difficulty of video stream playing control is reduced.
Owner:BEIJING BYTEDANCE NETWORK TECH CO LTD

Online education-oriented learner abnormal learning state prediction method

The invention discloses an online education-oriented learner abnormal learning state prediction method. The method comprises the steps of preprocessing high-dimensional online education platform log information and learner registration information, and coding and constructing learner portrait features based on a self-supervised learning method; constructing state features of the learner, further constructing a state feature sequence based on a generation time sequence of the state features, and constructing a state feature graph based on cosine similarity among the state features; constructing a long-short term memory-graph attention deep network conforming to learning badness degree prediction of online education, and determining the number of layers of the network, the number of neurons of each layer and the dimensions of input and output; constructing a pseudo tag based on the noise tag to perform iterative training on the network; and predicting the abnormal learning state and degree of the learner in the to-be-predicted learning stage by using the trained network. According to the method, the state abnormity degree of the learner is predicted by using the learner registration information and the learner log information, and a reference is provided for a teacher to carry out targeted guidance and help on the learner.
Owner:XI AN JIAOTONG UNIV

Authentication management and control device and method applied to detention house passage

The invention provides an authentication management and control device and method applied to a detention house passage. The device includes a data information acquisition device arranged on a first location; a rolling gate arranged in the middle of a second location, wherein a first gate and a second gate are arranged at a front end and a back end of the second location; a first face recognition terminal arranged on a front end of the rolling gate and a second face recognition terminal arranged at a back end of the rolling gate; a third face recognition terminal arranged at a back end of the second gate; a first display terminal arranged on a third location and a second display terminal arranged on a fourth location, wherein the third location and the fourth location locate on either sideof the second location; a central server, wherein the first face recognition terminal, the second face recognition terminal, the third face recognition terminal and the rolling gate are connected to the central server; and a management and control platform, wherein the first display terminal, the second display terminal and the data information acquisition device are connected to the central server through the management and control platform. The device can well realize rapid authentication of the identity of a person entering and exiting gate A and gate B gate of a detention house and the qualification of entering and exiting gate A and gate B.
Owner:HENGFENG INFORMATION TECH CO LTD

Helmet taking and placing operation system based on shared vehicle

InactiveCN111653042AAvoid situations where storage status is unknownAvoid the effects of wrong placementApparatus for meter-controlled dispensingIndividual entry/exit registersReal-time computingSmart lock
The invention relates to the technical field of shared vehicle helmet taking and placing, and further discloses a helmet taking and placing operation system based on the shared vehicle. The system comprises a terminal and a shared vehicle, an APP terminal is installed on the terminal, a whole vehicle lock is installed on the shared vehicle, a central control device and a shared two-dimensional code are installed on the shared vehicle, a bearing frame is arranged on the shared vehicle, a helmet is placed in the bearing frame, and an RFID magnetic strip is installed on the helmet. According to the helmet taking and placing operation system based on the shared vehicle, the situation that the intelligent lock of the bearing frame is not closed or the storage state of the helmet is unknown is effectively avoided; operation and use judgment of related users is facilitated; the FID connector feeds the signal back to the APP terminal through the central control device; after the APP terminal receives the signal, the bearing frame intelligent lock can be normally closed, it is confirmed that the helmet is returned, after the bearing frame intelligent lock is normally closed, the APP terminal can control the whole vehicle lock to be closed, and the situation that the helmet is lost due to the fact that a rider forgets to return the helmet is effectively avoided.
Owner:无锡青果智能科技有限公司

Two-dimensional code generating, decoding and recognizing method, device and equipment

The embodiment of the invention provides a two-dimensional code generation, decoding and recognition method, device and equipment. According to the scheme, the method comprises the steps of obtaininga binary sequence corresponding to commodity information of a to-be-generated two-dimensional code; determining a pixel value of each effective information bit in the generation area of the two-dimensional code according to the binary sequence; generating a two-dimensional code according to the pixel value of the effective information bit and the known pixel value of the positioning point position; when the generated two-dimensional code is recognized, a to-be-recognized image containing the two-dimensional code is acquired, and a two-dimensional code image is detected from the to-be-recognized image by adopting the detection model; an recognition model is adopted to identify the image information of the two-dimensional code in the two-dimensional code image, and the pixel value of the effective information bit of the two-dimensional code is determined from the image information of the two-dimensional code; generating a binary sequence according to the pixel value; and decoding the binary sequence to obtain the commodity information stored in the effective information bit.
Owner:ALIPAY (HANGZHOU) INFORMATION TECH CO LTD

Dual identity authentication management and control device and method suitable for detention house channel

The invention relates to a dual identity authentication management and control device suitable for a detention house channel. The device comprises: a data information acquisition device arranged at afirst position; a roller shutter arranged in the middle of the second position, wherein a first door and a second door are arranged at the front and rear ends of the second position; a first face access control all-in-one machine and a second face access control all-in-one machine which are arranged at the front end and the rear end of the roller shutter; a third face access control all-in-one machine arranged at the rear end of the second door; a first display terminal arranged at a third position and a second display terminal arranged at a fourth position, wherein the third position and thefourth position are located on any side of the second position, and the first face access control all-in-one machine, the second face access control all-in-one machine, the third face access control all-in-one machine and the roller shutter are all connected with the central server; and a management and control platform, wherein the first display terminal, the second display terminal and the datainformation acquisition device are connected with the center server through the management and control platform. The dual identity authentication management and control device and method can achieve the double rapid authentication of the identity of the person entering and exiting the AB door of the detention house and the qualification of entering and exiting the AB door well.
Owner:福建恒锋安信科技有限公司

Non-storage-battery portable photovoltaic direct-driven refrigerator system with compressor rotation speed varying with irradiation

The invention belongs to the technical field of solar energy utilization, and particularly relates to a non-storage-battery portable photovoltaic direct-driven refrigerator system with the compressor rotation speed varying with irradiation. The non-storage-battery portable photovoltaic direct-driven refrigerator system comprises a photovoltaic cell panel, a solar irradiation sensor, a DC voltage transmitter and a DC variable-frequency refrigerator, wherein the photovoltaic cell panel is connected with a compressor controller; the solar irradiation sensor and the DC voltage transmitter are combined into a compressor speed adjusting signal generation module; after being connected with a temperature controller in series, the compressor speed adjusting signal generation module is connected with the compressor controller; and the output interface of the compressor controller is connected with a DC variable-frequency compressor. Compared with the prior art, the non-storage-battery portable photovoltaic direct-driven refrigerator system provided by the invention has the following advantages: the problem that a compressor frequently starts and stops when the solar irradiation strength varies relatively greatly can be solved; the compressor rotation speed can be adjusted according to the irradiation signal strength; the law of energy supply and demand in an independent photovoltaic system can be met; the energy utilization ratio and the refrigeration efficiency are higher; and the demand for rapid refrigeration by using a photovoltaic refrigerator in the open air can be met.
Owner:GUANGDONG FIVESTAR SOLAR ENERGY

Flexible antenna sensor and preparation method thereof

The invention relates to the technical field of communication antennas, and provides a flexible antenna sensor which comprises a substrate and a radiation layer arranged on the substrate, and the surface, away from the radiation layer, of the substrate is provided with a grounding layer; wherein the material of the radiation layer comprises a two-dimensional layered material. According to the flexible antenna sensor provided by the invention, the material of the radiation layer arranged on the substrate contains the two-dimensional layered material, so that the antenna sensor is endowed with flexible characteristics, flexible mechanical properties and reversible deformation performance, and can be widely applied to flexible scenes; secondly, the radiation layer made of the two-dimensional layered material can maintain relatively high conductivity in the strain generation process, and meanwhile, the conductivity of the radiation layer can be greatly changed due to slippage of the material on a micro scale, so that the resonant frequency of the antenna is obviously changed, and the antenna sensor is high in sensitivity and good in stability; in addition, when the antenna sensor is subjected to strain, the resonant frequency of the antenna sensor can be changed, strain information can be directly obtained, an external circuit is not needed, and the cost is low.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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