Patents
Literature

265results about How to "Run fast" patented technology

City regional railway signal system and control method thereof

ActiveCN103754242ARun fastReduce labor intensityAutomatic systemsRailway signalEngineering
The invention discloses a city regional railway signal system and a control method thereof. The city regional railway signal system comprises a control center device, a plurality of station devices, a line side unit and a vehicle device; the control center device is used for obtaining the running information of every train and outputting the movement information of the trains to the station devices after processing; the station devices are used for outputting the train movement information output from the control center device and the route information established through the line side unit to the vehicle device after processing; the line side unit is used for detecting the train position information, establishing train routes according to the interlocking information, enabling the route information of the trains to be generated into the message information and outputting the message information to the vehicle device; the vehicle device is used for adjusting the running state of the trains according to the train route control information and the message information and feeding back the adjusted running state of the trains to the station devices. According to the city regional railway signal system and the control method thereof, the functions such as the interconnection and intercommunication of the line network interior, accurate stopping, shielding gate linkage and interval automatic running and automatic turn-back can be achieved based on an ETCS-1 (Europe Train Control System-1) platform.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP

Method for identifying information of image tag

The invention relates to a method for identifying information of an image tag in the technical field of image processing. The method comprises the following steps of: building a template image library; performing Hessian characteristic point detection on a template image and an image to be identified respectively; performing SURF characteristic extraction and LBP characteristic extraction on each characteristic point in the template image and the image to be identified respectively; performing SURF characteristic matching on the image to be identified and the template image to acquire the template image successfully prematched; performing LBP characteristic matching on the image to be identified and the template image successfully prematched to acquire the template image successfully prematched for the second time; and weighting the template image successfully prematched for the second time, wherein the template image with the maximum weight value is the template image most matched with the image to be identified. The method can effectively identify the image tag with complex background, scale change, direction change and visual angle change, avoids large-scale machine learning and complex image preprocessing at the same time, and has the advantages of high calculation speed, high identification accuracy rate and wide application scenarios.
Owner:SHANGHAI JIAO TONG UNIV

Robot positioning and mapping method, computer device and computer readable storage medium

The invention provides a robot positioning and mapping method, a computer device and a computer readable storage medium. The method comprises the following steps of pre-integrating information acquired by an inertial measurement unit by utilizing information acquired by a camera device and information acquired by the inertial measurement unit; using the front end module to carry out motion tracking by utilizing pre-integrated relative pose information, and judge whether a visual tracking loss condition occurs or not, if the visual tracking loss condition does not occur, carrying out the visualand inertial measurement fusion operation, and updating the state information of an inertial measurement unit; and when a new key frame is generated, using the rear end module to acquire the pose information of the key frame acquired by the front end module and the corresponding relation information of the feature points, create and optimize a factor graph, and update a rear end map by using theacquired pose information and the depth information of the 3D points. The invention also provides a computer device for realizing the method and a computer readable storage medium. According to the invention, the positioning and mapping of the robot can be realized efficiently and accurately.
Owner:西安全志科技有限公司

Multi-motor torque output and distribution controlling method

The invention discloses a multi-motor torque output and distribution controlling method. The multi-motor torque output and distribution controlling method comprises the following steps of: a, calculating torques, needed by a vehicle during running, by using vehicle controller modules; b, comparing motor working efficiency of different motor numbers during working, selecting the motor number with the high efficiency, calculating the total motor working efficiency at different torque distributing modes according to the selected motor number, and selecting a torque scheme when the total motor working efficiency is highest as the optimal scheme; c, distributing the motor torques according to an optimal scheme; d; distributing the torques, needed by the vehicle during running, to the motor controller modules with a set number; e; exerting the motor controller modules to control the adaptive motors to work according to the distributed torques; and f, exerting the motors to output the torques to the same driving shaft. According to the scheme, the motor working efficiency can reach the highest level through small calculated amount so that the energy is saved and the driving mileage is increased. The scheme is applied to electric automobiles, which are driven by two and more non-independent motors.
Owner:杭州伯坦新能源科技有限公司

Method for multi-mode terminal to select target networks with guaranteed quality of service

InactiveCN103002520AImprove the average quality of serviceRun fastNetwork traffic/resource managementAssess restrictionAnt colonySetting time
A method for a multi-mode terminal to select target networks with guaranteed quality of service on the basis of ant colony optimization is used for selecting optimized target networks for each multi-mode terminal by specifics that a base station acquires value of quality of service of each multi-mode terminal in each target network according to feedback of the multi-mode terminal and then simulates the ant colony optimization for searching advancing paths during foraging of ants, and includes steps of firstly, sequencing and numbering steps of ant advancing paths and selectable paths with natural numbers respectively and setting the total number of iterative algorithm; secondly, simulating the multi-mode terminals to select the target networks according to value of quality of service of different networks by the method selecting paths on the basis of different pheromone concentration and visibility in the ant advancing paths; calculating fitness of each path in the iterative algorithm after each section of advancing paths, updating the pheromone concentration of the paths according to the fitness, judging whether reaching the set times of the iterative algorithm or not so as to stop the ant colony iterative algorithm to output the optimal target networks selected by different multi-mode terminals.
Owner:BEIJING UNIV OF POSTS & TELECOMM +1

Dual-mode masked man event automatic detection method based on video characteristic statistics

ActiveCN105678213AWaste of human resourcesRun fastCharacter and pattern recognitionMouth regionTime processing
The invention provides a dual-mode masked man event automatic detection method based on video characteristic statistics. The dual-mode masked man event automatic detection method comprises the steps of: zooming a video frame and converting the video frame into a grayscale image after acquiring a source video image, acquiring a maximum object motion foreground rectangular frame, positioning a head region coarsely, acquiring face position information, then estimating a mouth region within the obtained face range, cutting the mouth region to narrow a range, calculating a gradient map, primarily judging whether a person is a masked man through calculating number of connected domains on the basis of the obtained gradient map, and calculating proportion of the areas of the top two connected domains for further judging whether the person is a masked man. The dual-mode masked man event automatic detection method based on video characteristic statistics does not have specific requirements for a video scene, is simple and efficient in the calculation method, can perform real-time processing, can be applied to real-time investigation and case solving, saves suspicious masked man information, and can provide first-hand information for evidence collection after a crime is committed.
Owner:SOUTH CHINA UNIV OF TECH

Ladder diagram matrix compiling and interpreting method based on PLC

ActiveCN104820393ASimplify the compilation processRun fastPIc programmingProgramme control in sequence/logic controllersOperating speedComputer engineering
The present invention discloses a ladder diagram matrix compiling and interpreting method based on a PLC. According to the method, the matrix operation of a ladder diagram is carried out directly without IL language conversion and interpretation. The method comprises a process compiling process and an interpreting process. According to the compiling process, since an IL language conversion process is omitted, only the simple scanning of the connection relationship of a matrix is needed, the ladder diagram compiling process is greatly simplified, fault points are reduced, and the compiling efficiency is improved. Since only the connection relation between elements in the matrix is processed in the compiling process, the complex AND OR and AND OR nesting logic are not processed, the logic operation process is simplified, the fault points are reduced, and the compiling efficiency is improved. In the interpreting process, the process of interpreting an IL language into a binary system index table is omitted, the scanning combination operation of the ladder diagram matrix is directly carried out, a lot of bottom layer CPU resources are saved, the program operating speed is improved, and the fault points are reduced.
Owner:SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD

Accelerating core virtual scratch pad memory method based on heterogeneous multi-core platform

The invention discloses an accelerating core virtual scratch pad memory method based on a heterogeneous multi-core platform. The accelerating core virtual scratch pad memory method includes the following steps: (1) dividing shared L2Cache into two portions of common L2Cache and a virtual scratch pad memory (SPM) logically; (2) setting a virtual SPM access interface; (3) setting a replacing strategy of the common L2Cache and the virtual SPM again; (4) addressing the virtual SPM and a memory uniformly; and (5) defining a virtual SPM space request and a released MIPS assembling command. By optimizing a storage cache sub-system of the heterogeneous multi-core platform partially, data interaction between a general processing core and an accelerating core is no longer finished through the memory and is finished by achieving data sharing in the virtual SPM. By means of the method, shared data interaction speed between the general processing core and the accelerating core is increased effectively, and the integral performance of the heterogeneous multi-core platform is obviously improved. Meanwhile, the virtual SPM can replace an SPM of the accelerating core partially, the capacity of the SPM of the accelerating core itself can be saved, and the cost of hardware is reduced.
Owner:ZHEJIANG UNIV
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