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31results about How to "Efficient mastery" patented technology

Curve safety early warning monitoring method, device and system

The embodiment of the invention discloses a curve safety early warning monitoring method, device and system. The method comprises the following steps of inputting an obtained image of a to-be-detectedvehicle about to enter a curve into a vehicle identification composite model to obtain vehicle type information and license plate information of the to-be-detected vehicle, obtaining the braking distance and the weight of the to-be-tested vehicle according to the vehicle model information, inputting the braking distance, the weight, the road surface information of the curve, the meteorological information, the current vehicle speed of the to-be-detected vehicle, the distance between the to-be-detected vehicle and the meeting port of the curve and the number of vehicles in the opposite direction into an early warning monitoring model to obtain the safety early warning level of the to-be-detected vehicle entering the curve, acquiring corresponding curve early warning information according to the safety early warning level, and acquiring vehicle user information corresponding to the to-be-detected vehicle according to the license plate information, and sending the corresponding curve early warning information to terminal equipment of a corresponding vehicle owner user according to the vehicle user information. The system is high in monitoring precision and intelligent degree.
Owner:HUBEI UNIV FOR NATITIES +1

Comprehensive detection method of overburden activity law based on borehole camera shooting

InactiveCN110671093AEfficiently grasp the spatial distribution characteristicsAccurate graspConstructionsBorehole/well accessoriesOverburdenObservation point
The invention discloses a comprehensive detection method of an overburden activity law based on borehole camera shooting. The comprehensive detection method comprises the steps that a detection area corresponding to overburden activities in a mining area is determined on an earth surface circle according to the production geological conditions of a coal mine working face; strike detection lines and inclination detection lines are arranged, and ground boreholes are formed at intervals in the strike detection lines and the inclination detection lines; a downhole observation point is arranged atthe intersection of a vertical projection of the earth surface inclination detection line with a downhole return airway, and three downhole boreholes with a certain depth are formed in a roof rock formation at different dip angles and azimuth angles; and post-mining observation holes are formed and constructed in the earth surface, and a borehole observing instrument is used for observing the development of cracks and rock strata dislocation situations in the post-mining observation holes to verify the overburden collapse and the development height of fracture zones. The dynamic activity characteristics of the overburden in a stope are detected, a comprehensive detection system of "six condition integration of upper position-middle position-lower position, pre-mining-mining-post-mining" from the earth surface to the overburden to the underground is realized, the operability is high, and the detection efficiency is high.
Owner:XINJIANG UNIVERSITY

Self-adaptive main shaft performance degradation identification method based on S test piece

The invention relates to a self-adaptive main shaft performance degradation identification method based on an S test piece. The method comprises the steps: collecting and storing radial vibration signals of a main shaft while the S test piece is machined; segmenting the radial vibration signals according to time, and performing adaptive noise complete set empirical mode decomposition on each segment of radial vibration signals to obtain IMF components; extracting intrinsic mode component characteristic parameters of the decomposed signals for signal reconstruction, and calculating the information entropy of a reconstructed signal power spectrum and the gravity center frequency of a marginal spectrum; after the S test piece is machined, judging whether a measurement result of the S test piece is qualified or not, and obtaining characteristics of a normal state and characteristics of an abnormal state of the machine tool spindle; comparing the PSE value and the SCF value of each sectionof vibration signal obtained after calculation of the radial vibration signals collected in the process of machining the new S test piece with the characteristics of the normal state and the abnormalstate of the main shaft respectively, and judging the health condition of the main shaft; and constructing power spectrum entropy curves of different machining stages of the machined S test piece to classify the degradation degree of the main shaft.
Owner:BEIJING INFORMATION SCI & TECH UNIV

Microblog big data hot topic multi-dimensional intelligent extraction system

The invention provides a text modeling method based on short text expansion and a hidden semantic calculation method, and solves the problems of insufficient data noise reduction and dimension reduction and semantic loss when a text modeling method in the prior art is used for extracting microblog topics. According to the method, a short text expansion method is provided in combination with microblog characteristics, a discussion atlas tree is recombined to expand the microblog text, microblog text modeling is performed through a hidden semantic calculation method, and the dimension of a text vector is reduced under the condition that semantics are not lost; the invention provides a collaborative approximate set method for extracting microblog topics, scoring topic popularity, incorporating time data characteristics into text similarity calculation, proposing influence factors and a specific method for microblog topic popularity value calculation, generating a microblog hot topic scoring list, and calculating the microblog hot topics according to the scoring list. The accuracy and timeliness of microblog topics are improved, the loss of topic information is reduced, and multi-dimensional intelligent and accurate extraction of microblog big data hot topics is realized.
Owner:张艳

Text data visualization analysis method and device, equipment and storage medium

The invention relates to an artificial intelligence technology, and discloses a text data visualization analysis method and device, equipment and a storage medium, and the method comprises the steps: obtaining a plurality of pieces of to-be-processed text data; carrying out keyword extraction on the multiple pieces of to-be-processed text data, and obtaining keywords and weights corresponding to the to-be-processed text data; according to the multiple pieces of to-be-processed text data and the corresponding keywords and weights, performing visual display by utilizing a visual tool to obtain a scatter diagram; according to the scatter diagram, performing clustering by using a DBscan clustering model to obtain a cluster; extracting corresponding keywords and to-be-processed text data based on each clustering cluster to obtain clustering keywords and clustering text data; matching the clustering keywords through a matching model, and finally realizing connection of each piece of clustering text data so as to construct the knowledge graph. The invention further relates to a blockchain technology, and the knowledge graph is stored in a blockchain. According to the method, the processing efficiency can be improved, and noise data can be removed.
Owner:PING AN TECH (SHENZHEN) CO LTD

Single-chip microcomputer system with control cabinet

Provided in the invention is a single-chip microcomputer system with a control cabinet. The system comprises a cabinet body with a single-chip microcomputer arranged inside; a top wall board is arranged at the cabinet body with the single-chip microcomputer arranged inside in a pin joint manner; a single-chip microcomputer and a device for terminating the power supply guarantee at the time of cabinet body separation are arranged in the cabinet body with the single-chip microcomputer arranged inside. A network backstage terminal connected with the single-chip microcomputer is installed in the cabinet body with the single-chip microcomputer arranged inside. A coaxial cable leading wiring board and a coaxial cable leading wiring board-battery wiring board are installed in the cabinet body with the single-chip microcomputer arranged inside at the side of the single-chip microcomputer. Besides, a plurality of leading devices combined with the coaxial cable leading wiring board and the coaxial cable leading wiring board-battery wiring board are installed in the side wall of the cabinet body with the single-chip microcomputer arranged inside. Therefore, problems that the protection performance of the control cabinet is poor, the control cabinet has no network supervision performance, and the network control of the control cabinet can not be realized by the backstage terminal in the prior art are solved.
Owner:XIAN MEIZHILV INFORMATION TECH CO LTD

Device and method for training procedure utilization habit of million kilowatt nuclear power plant

The invention is suitable for the field of control of nuclear power, and provides a device and a method for training a procedure utilization habit of a million kilowatt nuclear power plant. The device comprises operation input equipment which is used for outputting the state of the equipment and detecting an operation instruction inputted by a user; and control equipment is used for judging whether the operation instruction detected by the operation input equipment is correct or not according to a set of standard operation instructions stored in advance, and controlling alarm equipment to output alarm information when the operation instruction is wrong. The training device provided by the invention can be used for training and guiding trained personnel to correctly operate procedures for enhancing production safety and reducing the cycle and the cost of procedure training. Simultaneously, human factor disturbance information for disturbing or confusing the user to correctly use the procedures is outputted; and the human factor disturbance information is obtained by analyzing summarizing and extending a large amount of accidents caused by misoperation of the procedures. The meaning of the device lies in strengthening the importance of a human factor mistake trap for procedure users, so as to better guide the procedure utilization habit of the procedure users.
Owner:CHINA GENERAL NUCLEAR POWER CORP +1

Curve safety early warning monitoring method, device and system

The embodiment of the present invention discloses a curve safety early warning monitoring method, device and system. The acquired image of the vehicle to be tested that is about to enter the curve is input into the vehicle recognition composite model to obtain the vehicle model information and license plate information of the vehicle to be tested. ; Obtain the braking distance and weight of the vehicle to be tested according to the vehicle model information; obtain the braking distance, weight, road surface information of the curve, weather information, the current speed of the vehicle to be tested, the current distance between the vehicle to be tested and the meeting point of the curve, and The number of opposing vehicles is input into the early warning monitoring model to obtain the safety warning level of the vehicle to be tested entering the curve; and the corresponding curve warning information is obtained according to the safety warning level; the vehicle user information corresponding to the vehicle to be tested is obtained according to the license plate information, and According to the vehicle user information, the corresponding curve warning information is sent to the terminal equipment of the corresponding vehicle owner user. The monitoring precision and intelligent degree of the present invention are relatively high.
Owner:HUBEI UNIV FOR NATITIES +1
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