Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

7434results about How to "Strong reliability" patented technology

Collaborative interaction method for unmanned plane cluster and visual navigation system of unmanned plane

The invention discloses a collaborative interaction method for an unmanned plane cluster and a visual navigation system of an unmanned plane. The collaborative interaction method for the unmanned plane cluster comprises the following steps of: determining unmanned planes satisfying a collaborative condition in a communication coverage area of a certain unmanned plane by the unmanned plane in the unmanned plane cluster, and establishing an unmanned plane collaboration group according to the unmanned planes satisfying the collaborative condition; determining inter-plane routes of multiple unmanned planes in the unmanned plane collaboration group; allocating collaborative tasks to multiple unmanned planes in the unmanned plane collaboration group according to link state information of the inter-plane routes; and evaluating the link state according to the motion state of multiple unmanned planes in the unmanned plane collaboration group, and updating unmanned planes in the unmanned plane collaboration group and the collaborative task of each unmanned plane according to an evaluation result. The collaborative interaction method for the unmanned plane cluster is good in real-time, strong in reliability and high in communication quality, and can better adapt to an unmanned plane cluster communication environment during visual navigation.
Owner:TSINGHUA UNIV

Sensitive information desensitization method and system for data sharing

The invention relates to a sensitive information desensitization method and system for data sharing. According to the method, by adopting statistics, a natural language processing technology and a machine learning technology, the protection of sensitive data in the whole process from data publishing to data application and usage, and automatic identification of sensitive information of such as named entities and addresses is put forward on the basis of the establishment of a sensitive information keyword library, named entities, addresses and the like is put forward; a Sigmoid function is used for calculating the correlation degree of sensitive attributes; a desensitization strategy is carried out in a combined mode of establishing a sensitive attribute generation rule library and adopting a named entity desensitization rule and a core desensitization algorithm; deep desensitization calculation is conducted in combination with numerical sensitive attributes and classified sensitive attributes separately, the desensitization degree of a whole data set is obtained, and the controlled output of data and the like are achieved by downloading a link address hash; thus, the safety of data sensitive information and a sensitive information processing strategy which meets analysis and mining requirements to the maximize degree can be ensured, and the method and system have the advantages of being good in desensitization effect, high in reliability and the like.
Owner:ENJOYOR COMPANY LIMITED

Method for locating license plate under a complicated background

The invention discloses a method for locating a vehicle license plate in complex background. The method comprises the following steps: (1). Differentiating a gray scale mean of a fixed-size region and extracting a vehicle body image from a video; (2). preprocessing the vehicle body image such as gradation, gradient information enhancing, binarization and the like; (3). performing mathematical morphology operation on the processed vehicle body image, and performing primary screening by combining structural features of the vehicle license plate to obtain a plurality of candidate vehicle license plate regions; (4). converting the obtained candidate vehicle license plate regions into an HSV color spatial image; (5). adopting a BP neural network to perform color identification on the HSV color spatial candidate vehicle license plate image, and performing color edge detection by computing the mean color distance between two adjacent regions of a certain pixel; (6). judging edge color pair of an edge point, and eliminating the false vehicle license plate edge; and (7). performing final vehicle license plate location by the texture feature of the vehicle license plate. The method is suitable for complex background, and has higher location accuracy rate and higher robustness.
Owner:ZHEJIANG NORMAL UNIVERSITY

Analytic hierarchy process-fuzzy comprehensive evaluation-based chemical project environmental risk evaluation system

The invention discloses an analytic hierarchy process-fuzzy comprehensive evaluation-based chemical project environmental risk evaluation system and belongs to the field of environmental risk control and management. The system comprises the following steps: (1) establishing an environmental risk evaluation index system; (2) dividing the evaluation levels of the environmental risk evaluation index system, determining the standards for evaluation of indexes under different levels, and scoring the indexes; (3) determining the weight of individual index by applying the analytic hierarchy process; (4) carrying out environmental risk comprehensive evaluation by virtue of fuzzy comprehensive evaluation to obtain a decision set; and (5) evaluating the decision set according to the maximum membership principle to obtain the environmental risk evaluation level. According to the technical scheme disclosed by the invention, the system is suitable for risk evaluation of environmental behaviors in all chemical project production processes, can be used for comprehensive risk evaluation, and is comprehensive in evaluation range, perfect in method and system, accurate in evaluation system and good in feasibility.
Owner:NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA

Traffic jam avoiding prompting system based on collective intelligence network

The invention provides a traffic jam avoiding prompting system based on a collective intelligence network. The traffic jam avoiding prompting system consists of a webpage traffic hot spot digging module, a microblog traffic hot spot digging module, a road condition rule predicting module, a jam hot spot verification and management module, a real-time traffic hot spot server, a traveling route planning module based on hot spot avoiding, a traffic hot spot and avoiding route display module and intelligent mobile phone end application software. The traffic jam avoiding prompting system faces the collective intelligence sensing network, is combined with the traditional traffic information sources, carries out digging and prediction on the urban traffic hot spots on the basis of the data activation technology, and further provides the traffic jam hot spot display and avoiding prompt service for intelligent terminal users. The traffic jam avoiding prompting system has the advantages that the data is from the multi-source collective intelligence network, the accuracy is good, the checking comprehensive rate is high, the hot spots are captured and fed back in real time, high efficiency and practicability are realized, the design is good, the operation is stable, the installation is convenient, the traffic jam avoiding prompting system can become a tool capable of providing wide and practical intelligent traffic information for urban residents, and the efficient information prompt is provided for the users to realize the smooth traveling.
Owner:BEIHANG UNIV

Method for identifying medical image, method for model training and server

The embodiment of the invention discloses a method for identifying a medical image. The method comprises the steps that a to-be-identified medical image set is obtained, wherein the to-be-identified medical image set comprises at least one to-be-identified medical image; a to-be-identified area corresponding to each one to-be-identified medical image in the to-be-identified medical image set is extracted, wherein the to-be-identified area belongs to a part of the to-be-identified medical images; the recognition result of each to-be-identified area is determined through a medical image recognition model, the medical image recognition model is obtained according to training of a medical image sample set, the medical image sample set comprises at least one medical image sample, each medical image sample carries corresponding annotation information, the annotation information is used for indicating the types of the medical image samples, and the recognition result is used for indicating the types of the to-be-identified medical images. The embodiment of the invention also discloses a method for model training and a server. The method for identifying the medical image, the method for model training and the server greatly save the manual annotation cost and time cost, and have stronger reliability and credibility.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Automatic control transfusion device and automatic control method thereof

The invention relates to the technical field of medical equipment, and in particular relates to an automatic control transfusion device and an automatic control method thereof. The automatic control transfusion device comprises a transfusion system and an automatic control system, wherein the transfusion system comprises a hanging support, transfusion bags and a transfusion apparatus; and the automatic control system comprises a force sensor, an on-off control device and a control unit. The method comprises the following steps of: detecting weights of the transfusion bags, calculating the liquid remaining quantity according to the weights of the transfusion bags, cutting off a transfusion pipeline and giving an alarm when the liquid remaining quantity is less than a threshold value. The automatic control transfusion device and the automatic control method thereof, disclosed by the invention, have the advantages that: the alarm can be given early and the transfusion pipeline can be automatically cut off when the liquid is going to drip off; the automatic switchover between the transfusion bags can be controlled; manual operation of medical workers is not needed; and the alarm adopts a plurality of types such as sound, light and the like, different alarm sounds and lights can be set according to different situations, the reliability is strong and the transfusion safety can be fully guaranteed.
Owner:重庆迈德医疗器械有限公司

Standard pose calibration method for six-degree-of-freedom parallel robot used for Stewart platform structure

The invention discloses a standard pose calibration method for a six-degree-of-freedom parallel robot used for a Stewart platform structure. The method comprises the following steps: establishing a base coordinate system {O} and a motion platform coordinate system {P}; under the condition of six-degree-of-freedom parallel robot open chain organization, calibrating position coordinate vectors of Hooke hinge centers and spherical hinge centers of the parallel robot in the{O} and the {P} respectively; selecting three mark points on a motion platform and measuring local coordinates of the mark points in the motion platform coordinate system; installing an optocoupler limit switch at the push rod extending end of an electric cylinder of each supporting leg, and assembling the parallel robot to form a closed chain organization; controlling each supporting leg of the six-degree-of-freedom parallel robot to shorten slowly at a constant speed until each optocoupler limit switch is triggered and stimulates the six legs to stop moving successively, and thus the standard pose of the motion platform is generated; measuring the three mark points on the motion platform, ad calculating the standard pose of the parallel robot; and calculating the initial length of the supporting leg corresponding to the standard pose according to the standard pose. With the method, repeated positioning accuracy is high and reliability is high.
Owner:XIDIAN UNIV

Text classification method of Chinese web page based on steam clustering

InactiveCN101727500AWide coverageWord segmentation method is simple and easySpecial data processing applicationsFeature vectorThe Internet
The invention relates to a text classification method of a Chinese web page based on steam clustering, belonging to the technical field of internetwork data mining. The text classification method comprises the following steps of: acquiring a web page in real time; removing unprocessed labels in the format of the web page, and analyzing the characteristic information of texts of the web page; segmenting the content of the texts, using as ngram participles, and forming a plurality of word strings; computing the weight value of each word string; extracting the word string with a high weight value, and using the word string with the high weight value and the corresponding weight value thereof as characteristic vectors; computing the similarity of the characteristic vectors and characteristic information and a known class; computing obtained total similarity, and classifying the texts to the know class or establishing a new class; judging whether the know class is divided into two subclasses or not according to the number of characteristic items of the known class; and storing processed text records and the information of the known class. The text classification method sufficiently excavates the effective information of web page texts aiming at the characteristics of the web page texts and is incremental, fast, effective and more practical.
Owner:TSINGHUA UNIV

Point cloud data partitioning method based on three-dimensional laser radar

The invention relates to a point cloud data partitioning method based on three-dimensional laser radar. The method comprises the following steps of: (1) establishing a radar coordinate system oxyz of tested vehicles; (2) preprocessing the radar data acquired by the laser radar, establishing a region of interest under the radar coordinate system oxyz and filtering out ground noise; (3) establishing an image coordinate system o'uv, and defining the mapping relation between the radar coordinate system oxyz and the image coordinate system o'uv; (4) testing vehicles on a radar cloud picture directly by using an image processing algorithm, and characterizing all tested vehicles (except the testing vehicles) in the region of interest by using a bounding box so as to obtain four vertex coordinates of the bounding box of the tested vehicles under the image coordinate system o'uv; and (5) mapping the four vertex coordinates of the bounding box under the image coordinate system o'uv in step (4) to the radar coordinate system oxyz according to the coordinate mapping model so as to obtain the shape vector parameters of the tested vehicles according to the position vector parameter of the tested vehicles. The method is high in operation efficiency, test precision and reliability, and can be widely applied to the technical field of vehicle environment sensing.
Owner:TSINGHUA UNIV

Running track prediction method aiming at specific vehicle potential group

The invention relates to a running track prediction method aiming at a specific vehicle potential group. The running track prediction method comprises the following steps: looking up the potential group vehicle of a certain specific vehicle by using the original traffic data when the specific vehicle is discovered; judging whether the potential group vehicle is the specific vehicle; increasing the risk coefficient of the vehicle when the potential group vehicle is not the specific vehicle; adding a license number of the vehicle into a specific vehicle list when the risk coefficient of the potential group vehicle exceeds a predetermined threshold value; predicting a running track of the vehicle if the license number of the vehicle is added into the specific vehicle list; performing mode extraction on a running record of the specific vehicle by using a class Apriori algorithm to generate a rule set R during track detection; judging whether a final passing barrier of the specific vehicle exists in the generated rule set R; and looking up a prediction path of the specific vehicle according to the corresponding rule in R if the barrier exists in the rule set R, and otherwise, predicting the running track of the specific vehicle by establishing a Bayesian network of the final passing barrier of the specific vehicle. The prediction result provided by the invention can provide effective technical support for the decision making of related departments and the safety guarantee of urban roads.
Owner:INST OF INFORMATION ENG CAS

Fowl egg crack rapid on-line nondestructive detection device and method based on acoustic characteristic

The invention discloses a device used for quick online nondestructive detection on cracks of poultry eggs on the basis of acoustic characteristic and a method thereof; the poultry egg is arranged on a supporting idler wheel; a stepping motor is connected with the supporting idler wheel and drives the supporting idler wheel; a microphone which is arranged beside the poultry egg is sequentially connected with a computer by a signal amplifier, a filter and an A/D converter; when the poultry egg rolls on a chain, different parts of the poultry egg are mechanically knocked at multi-point by a knocking rod; sound signals collected by the microphone are amplified by the signal amplifier, filtrated by the filter and converted by the A/D converter and subsequently input to the computer, thus comprehensively judging the cracking situation of the poultry eggs. The device and the method can adapt to poultry eggs with different types and different sizes, realize the classification and automatic detection of the poultry eggs during the production processing and circulation process, and can be popularized and applied to the nondestructive detection on the hardness and the maturity of agricultural products such as fruits, vegetables, and the like.
Owner:JIANGSU UNIV

Intelligent power lithium ion battery management system and charging control method

The invention relates to an intelligent power lithium ion battery management system. The system comprises a microcontroller module, an acquisition module, a storage module, a safety protection module, a communication module, a charging and discharging control module and an equalization management module, wherein the acquisition module, the storage module, the safety protection module, the communication module, the charging and discharging control module and the equalization management module are connected to the microcontroller module. The charging method comprises the following steps that according to a single battery voltage collected by the acquisition module, a total voltage of a battery pack, a temperature, a current and other information, whether the battery allows to be charged is determined; if the battery allows to be charged, the battery management system automatically adjusts a charging mode to the battery pack; through CAN communication, an output current of an equalization power supply module is automatically adjusted; equalization charging is performed on a single battery with a low voltage till that differential voltages of all the single batteries are less than a threshold. By using the system and the method of the invention, according to data information of the battery pack, a charging mode can be automatically selected, a charging current is automatically matched, a charging protection function is possessed, charging efficiency of the battery pack can be increased and a circulation service life of the battery pack is prolonged.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Sewage treatment engineering monitoring system based on wireless sensor network

The invention discloses a sewage treatment engineering monitoring system based on a wireless sensor network. The sewage treatment engineering monitoring system comprises a plurality of wireless monitoring substations, a wireless transmission system and a wireless monitoring master station, wherein the wireless monitoring substations are used for collecting relative information of field apparatuses of the sewage treatment engineering; the data and commands required to be transferred by the monitoring system are communicated through the wireless transmission system; the wireless monitoring master station comprises a monitoring software, a server, a client and an Ethernet switch; and the client and the server exchange data through the Ethernet switch, and the server is mainly used for storing and managing the data of the whole sewage disposal plant. Compared with a traditional PLC (Programmable Logic Controller) control system, the system has stronger data processing capacity and larger system storage volume; and each data collecting module has an independent controller, so that the system has a strong reliability. Compared with the traditional wired transmission systems, the wireless transmission system is utilized, so that the system has the advantages of low cost and convenience for mounting and debugging, etc.
Owner:HARBIN INST OF TECH

Technique for roasting and dressing laterite nickel ore

InactiveCN101538645APromote reductionAvoid excessive reductionProcess efficiency improvementLateriteCobalt
The invention relates to a technique for roasting and dressing laterite nickel ore. The technique comprises the following steps that: raw ore is crushed, sieved and then roasted for the first time by use of a kiln; cold roasted sand powder is ground into fine powder; the fine powder is mixed well with carbonaceous additives and chlorinating agents and then pelletized to be pellets in a disk pelletizer; the pellets are dried by use of afterheat flue gas of the kiln and then enter a second kiln so as to be roasted; neutral or weak reducing atmosphere is adopted in the roasting process to inhibit the reduction of iron in laterite ore; roasting temperature is controlled below soft melting temperature; the roasted pellets are quenched with water under an airtight condition; water-quenched roasted sand is ground and then dressed so as to obtain nickel-cobalt concentrate; iron in tailings is recovered through high intensity magnetic separation and gravity separation; tail gas of a pellet-roasting kiln is subjected to vortex dust collection, neutralized with lime mortar and concentrated and then passes through a washing tower; and most of chlorinating agents are recovered after water-film dust removal. The technique is characterized by strong raw-material adaptability, simple process flow, low cost, environment-friendly property and the like.
Owner:张建宏 +6
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products