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Automatic adjusting method and device for thread number aiming to realizing optimization of resource utilization

The invention discloses an automatic adjusting method and device for the thread number aiming to realizing the optimization of resource utilization. The automatic adjusting device comprises a resource monitoring module, a training module, a thread number determining module and a thread managing module, wherein the resource monitoring module is used for monitoring the use condition of each computing resource in a server; the training module is used for quantizing the resources used by one newly-increased thread for each type of task; the thread number determining module is used for determining the thread number of each type of task and giving a thread number adjustment instruction; the thread managing module is used for determining an instructive dynamic management thread of the module according to the thread number and is used for creating, recovering and destroying a thread. According to the automatic adjusting method and device disclosed by the invention, the adjustment on the thread number can be automatically finished by using methods of monitoring resources, managing the thread and the like, without manual intervention completely, so that the workload of optimizing performance by software developers is reduced, the thread number can be adjusted dynamically, accurately and quickly and the resource utilization of the server reaches or approaches to optimization.
Owner:STATE GRID CORP OF CHINA +1

Time-interval-based feature identification and fast search method for hotspot path

The invention discloses a feature identification and fast search method for a hotspot path based on route big data, relates to a network path searching method and in particular relates to a method for performing hotspot path identification and search in a road network according to historical route big data. The invention provides a set of core features of a hotspot path and the feature identification method of the hotspot path. The method comprises a vector markup method for path heat and a ranking mechanism based on the path heat; an index mechanism is provided, so that the frequency of query on the route big data and the cost of input/output (I/O) of a disk in the process are reduced. Moreover, the method for rapidly querying the hotspot path based on the time interval comprises the following steps of: determining the starting point, destination and interested time interval and calculating the hotspot path, which meets the conditions, according to the historical route big data. The reasonable definition of the hotspot path is given, the hotspot path query at any time interval is provided, and the method is an important supplement to traditional path query methods and can well provide core technical support for various services based on positions.
Owner:GUANGZHOU HKUST FOK YING TUNG RES INST

Comprehensive device monitoring system architecture

The invention discloses comprehensive device monitoring system architecture. The comprehensive device monitoring system architecture comprises a data collection layer, a data processing layer and a data presentation layer; the data collection layer comprises a data collection engine and a data collection script and monitors the automatic generation of a configuration file; the data processing layer comprises a CMDB library data processing module, a business engine, a data collection engine monitoring configuration file transmission module, a collected transmission module of a data collection engine and a business engine and an analyzing and processing module of alarm data; the comprehensive device monitoring system architecture disclosed by the invention has a large alarm data size, thereby requiring a good alarm collection processing means to ensure the instantaneity; as the definitions of alarm fields of different industries and manufacturers are different, a large amount of works are required to trim the alarms; a flat management structure collectively processes the alarms in the industries on the basis of standardization of the alarms, thereby requiring an extract alarm association and preprocessing rule; and the incidence relation among the alarms, the IT resources and business is confirmed, and a model of alarm influence analysis is established.
Owner:深圳市思博创科技有限公司

Motion estimation method based on image features and three-dimensional information of three-dimensional visual system

The invention discloses a motion estimation method based on image features and three-dimensional information of a three-dimensional visual system. The method includes the first step of obtaining two-dimensional image information and space three-dimensional information corresponding to two-dimensional image pixels in real time on the basis of the three-dimensional visual system, the second step of controlling collection intervals between adjacent frames through the adoption of an adjacent frame sampling interval self-adaptive regulation method and automatically regulating the sampling intervals of the t+1 moment relative to the t moment according to the dot pair number of the effective matching image features between the frame at the t-1moment and the frame at the t moment, and the third step of synthesizing two-dimensional scene image features and three-dimensional point cloud information and carrying out three-dimensional motion estimation according to the matching point pair number of the current two-dimensional image features of the adjacent frames to obtain high-precision three-dimensional motion estimation. Through the method, on the basis of satisfying accuracy and reliability of the three-dimensional estimation, the calculated amount is effectively reduced, and the method has the advantages of being less in calculated amount, small in limitation to an application scene and the like.
Owner:余洪山

Molten bath monitoring device of additional material manufacturing process based on multiband coupling and its method

The invention discloses a molten bath monitoring device of an additional material manufacturing process based on multiband coupling and a method. The device is composed of a processing unit, a signalcollecting unit, a data processing unit, and a data storage unit. By means of a multi-wavelength refracting-diffracting mixed f-theta focus lens, a dichroscope and other optical elements, three lightpaths (laser processing light path, laser lighting path and a bath image information collecting light path) at different wave sections can be coaxially coupled at outside of a shaping cavity, thus therapidly moved small bath can be tracked and collected in real time; besides, the bath image and the characteristic information can be rapidly calculated and stored in multiple grades through the dataprocessing unit and the data storage unit; the long-time monitoring of the bath during the fusion additional material manufacturing process of a powder bed is realized. The device can realize the high-precision and full-flow monitoring during the long time working process of the fusion additional material manufacturing of the powder bed; the technical condition is created for the evaluation of the additional material manufacturing and shaping quality and regulation of technical parameters.
Owner:HUAZHONG UNIV OF SCI & TECH

Vehicular access synergism anti-collision pre-warning system based on V2X

The invention discloses a vehicular access synergism anti-collision pre-warning system based on V2X. Aiming at judgment links of an anti-collision pre-warning decision in the beyond visual range of anintelligent connected vehicle, in combination with a V2X communication technology and an inertial navigation technology, an improved safe distance model is designed, and an anti-collision pre-warningsystem of the intelligent connected vehicle is constructed. A V2X communication module is mainly used for being responsible for data communication, including data broadcasting of the vehicle, detection of data of surrounding vehicles, and receiving of roadside end road traffic information; a positioning module comprises a GPS/BD sensor for obtaining position data of the vehicle, including the data of longitude and latitude, course angle, speed, elevation and the like; the sensors such as a posture data module, an accelerometer and a gyroscope are mainly used for obtaining posture data of thevehicle, including the data of vehicle acceleration, rotation angle and the like; and an inertial navigation module has the main functions of reducing a data cycle and improving the accuracy by usingan inertial navigation algorithm by utilizing the data of the sensors such as a GPS/BD module, the accelerometer and the gyroscope.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Quick search method for target character points of image motion

ActiveCN103226834AReduce computational complexity and time complexityGet quicklyImage analysisEdge detectionTime complexity
The invention provides a quick search method for target character points of image motion. The quick search method comprises the steps as follows: images are decomposed into image blocks; the sum of the absolute values of the gray scale difference of first frame images, second frame images and the image blocks taking pixels as centers in third frame images and the second frame images is calculated; target blocks are marked, edge detection is carried out, optimum angle points are searched; basic matching templates taking the angle points as centers are built up, matching points are searched out, information of the matching points is saved, and the steps are repeated; the new matching points are predicted, and vehicle driving track lines are obtained; and based on the angle point positions recorded in the previous frame, the positions of the matching points of the targets recorded in the current frame are compared with the angle point positions so as to determine whether the vehicle targets are new. Compared with the prior art, the quick search method for the target character points of the image motion can quickly search and track all the vehicle targets in the video range in a matching manner, can obtain tracking trajectory and effective information rapidly and accurately, and can reduce the computation complexity and time complexity.
Owner:CHANGAN UNIV +1

Active radio frequency E-plate and vehicle IOT (Internet of Things) management system and implementation method thereof

ActiveCN102789588AEnsure non-reproduciblePut an end to the deckCo-operative working arrangementsVehicle componentsStatistical analysisElectronic switch
The invention provides an active radio frequency E-plate and vehicle IOT (Internet of Things) management system and an implementation method thereof. A storage unit in an MCU (Microprogrammed Control Unit) of an E-plate is a Ma*Arias wireless memory; a power supply circuit consists of a battery and a power supply control circuit; the power supply control circuit is internally provided with a controllable electronic switch; a management system consists of an active radio frequency E-plate, an E-plate wireless writer, a mobile vehicle information wireless reader writer, a stationary vehicle information wireless reader writer, an image recognition system and a vehicle information management network system based on a server; the E-plate stores all registration information of a vehicle, is forgery-proof and disassembly-proof; the mobile wireless reader writer can be used for conveniently and rapidly obtaining all the information of the vehicle on a spot at which the vehicle is located and rapidly judging the legality of the vehicle; the stationary reader writer can be used for scanning E-plate numbers of pass-by vehicles, detecting illegal and violating vehicles, recording wheel paths and carrying out various statistical analysis on the pass-by vehicles; and a vehicle management department can realize various management functions by virtue of the vehicle information management network system.
Owner:SHANDONG JIAXIN AUTOMATION +2

Beam position design method of inclined geosynchronous orbit synthetic aperture radar

The invention relates to a beam position design method of an inclined geosynchronous orbit synthetic aperture radar, which belongs to the technical field of the synthetic aperture radar, and is characterized in that: by satisfying coherent accumulation time required by system indexes, a range of latitude argument run by a satellite platform is calculated, then influence of earth rotation is considered according to a relative geometric relation between the satellite platform and a target, and information of an echo window of a surveying and mapping zone can be precisely calculated; and then a valid pulse recurrence frequency (PRF) range is calculated according to a substar echo and launching pulse blocking, and a zebra map is drawn. Working parameters are designed within the valid PRF range, the PRF is preferentially selected to satisfy the requirement of the system performance and to complete the beam position design of the geosynchronous orbit synthetic aperture radar (GEO SAR), a minimal slope distance and echo window information of the surveying and mapping zone of the GEO SAR can be more precisely calculated, and the method is particularly suitable for the beam position designof satellite-mounted SAR platforms of an elliptic orbit which cannot ignore omit the earth rotation.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Pneumatically controlled angle seat valve

The invention relates to a valve, and discloses a pneumatically controlled angle seat valve. An aluminum alloy upper end cover is connected with an aluminum alloy cylinder barrel through a sealing ring; an observation window is fixed in the center of the aluminum alloy upper end cover; one end of an indicating rod is positioned in the observation window, and the other end of the indicating rod is connected with a locking nut; the locking nut is connected with a valve rod; the valve rod is fixed in the center of a piston; one end of a spring presses against the aluminum alloy upper end cover, and the other end of the spring presses against the piston; an air inlet is positioned on the lower part of the aluminum alloy cylinder barrel; the valve rod is connected with an aluminum alloy lower end cover through an oil bearing; a Y-shaped ring is arranged between the valve rod and the aluminum alloy lower end cover; the aluminum alloy lower end cover is connected with a connecting seat; the connecting seat is connected with a valve body; a macromolecular sealing assembly and a sealing spring are arranged between the valve rod and the connecting seat; the end of the valve rod is connected with a valve core; and the valve core is positioned at the upper end of a valve port. The angle seat valve is compact in structure, safe, reliable, long in service life and easy to manufacture.
Owner:青岛海菲勒气控阀门有限公司 +1

Soft soil area underground continuous wall leakage detecting system

The invention discloses a soft soil area underground continuous wall leakage detecting system, solves such defects as complex construction, difficult measurement and lower accuracy of measured results, and measures specific positions of leakage points more accurately. The transport process of underground ions and the gathering process of the underground ions are observed in real time, so that the specific positions of the leakage points can be obtained more quickly and accurately. The soft soil area underground continuous wall leakage detecting system relates to a underground continuous wall, an observation well, a precipitation well, a soft soil layer, an aluminum electrode, an electrifying device, an electrifying device positive pole, an electrifying device negative pole, an in-pit ground, an out-pit ground, the leakage points, aluminum ions, a sampling device, a slide cover, a bracket, an opening cylinder, a gauze, a separation plate, a round hole, a sensor, a circuit, a circuit fixator, a circuit negative pole and an acquiring system. The underground continuous wall is not limited by thickness and depth. The observation well is used for observing change of an underground water level on the outer side of a foundation pit; the gap and the depth of the observation well are determined according to actual engineering; and the observation well also can serve as a foundation pit outer side precipitation well. The precipitation well is a foundation pit inner side precipitation well, and can be used for observing a underground water level on the inner side of the foundation pit. The soft soil layer is a soil layer suitable for an electroosmosis method.
Owner:ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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