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1348 results about "Occurrence time" patented technology

Time of occurrence. time of occurrence: The date of an event, i.e., the instant an event occurs, with reference to a specified time scale.

Methods for visualizing transformations among related series of graphs

A method for displaying in a coherent manner the changes over time of a web site's structure, usage, and content is disclosed. Time tubes are generated by a method of displaying a related series of graphs. Time tubes illustrate changes in a graph that undergoes one or more transformations from one state to another. The transformations are displayed using the length of the cylindrical tube, filling the length of the time tube with planar slices which represent the data at various stages of the transformations. Time tubes may encode several dimensions of the transformations simultaneously by altering the representation of size, color, and layout among the planar slices. Temporal transformations occur when web pages are added or deleted over time. Value-based transformations include node colors, which may be used to encode a specific page's usage parameter. Spatial transformations include the scaling of physical dimension as graphs expand or contract in size. The states of a graph at various times are represented as a series of related graphs. In a preferred embodiment, an inventory of all existing nodes is performed so as to generate a list of all nodes that have existed at any time. This inventory is used to produce a layout template in which each unique node is assigned a unique layout position. To produce each planar slice, the specific nodes which exist in the slice are placed at their respective positions assigned in the layout template. In another aspect, corresponding nodes in planar slices are linked, such as with translucent streamlines, in response to a user selecting a node in a planar slice by placing his cursor over the selected node, or to show clustering of two or more nodes in one planar slice into a single node in an adjacent planar slice.
Owner:GOOGLE LLC

Attack-oriented network security situation prediction method, device and system

ActiveCN108494810ARealize dynamic associationIn line with the actual environmentData switching networksSecuring communicationCountermeasureAttack graph
The invention belongs to the technical field of network security and particularly relates to an attack-oriented network security situation prediction method, device and system. The method comprises the following steps: detecting and collecting alarm data and network environment operation and maintenance information in a network countermeasure environment, obtaining an element set required by network security situation prediction, wherein the element set comprises three types of information of an attacker, a defense party and a network environment; evaluating the attacker capability and the level of the defense party, establishing a dynamic Bayesian attack graph, and calculating an attack phase number and an attack state occurrence probability vector; and combining a vulnerability scoring standard and network asset information, and performing time-space dimension quantification on the network security situation value. According to the method, dynamic association of the situation elements of the defense party, the attacker, the environment information and the like is achieved, the actual environment of the network is better conformed to, the future situation and the attack occurrencetime can be accurately predicted, higher prediction efficiency is achieved, and storage scale and timeliness of network security situation awareness are optimized, so as to provide more effective guidance for network protection.
Owner:PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU

Security anti-collision early-warning method based on vehicle driving speed and position information fusion

The invention discloses a security anti-collision early-warning method based on vehicle driving speed and position information fusion. A vehicle-mounted device obtains information of longitudes and latitudes, speeds and heading angles of the vehicle and another vehicle in real time; according to a rectangular plane coordinate system of longitude and latitude conversion, vehicle coordinate information can be obtained; and on the basis of vehicle ordinates and heading angles, determination of vehicle straight line collision and side collision can be carried out, so that algorithm processing is carried out respectively. According to a driving speed of a vehicle, different vehicle security collision prevention time is determined; if the vehicle collision occurrence time is less than or equal to security collision prevention time, a risk of vehicle collision exist and the driver can be warned timely; and if the vehicle collision occurrence time is larger than the security collision prevention time, updated vehicle state information is processed again. According to the invention, the method is not limited by vehicle-mounted equipment; the early warning precision is improved effectively; unnecessary early warning is reduced; and the method is suitable for early warning of driven vehicle collision prevention.
Owner:JIANGSU UNIV OF SCI & TECH

Vehicle checking method based on video image characteristic

The invention provides a vehicle detection method based on video image characteristics. The invention makes use of a panoramic digital camera for collection of monitored video images of a plurality of lanes. The field of view of the panoramic digital camera is pointed at all of lanes in a direction to collect the monitored video images of a plurality of lanes in real time. Digital video images of each frame acquired by the panoramic digital camera are analyzed through a vehicle detection algorithm based on the video image characteristics. The positions and the occurrence time of the vehicles in the images are found out. At the same time, video snapping signal is generated, which drives a high speed CCD industrial camera to snap panoramic photographs. The images of the targets can be cut precisely from panoramic images according to the position information of the targets positioned in video vehicle detection, and are used for identifying number plates, punish vehicles breaking regulations and assist in public security. The invention improves the reliability and accuracy of the video vehicle detection algorithm by comprehensively using the fringe characteristics and the symmetry properties of vehicle figures, and detects vehicles quickly. In addition, the invention can be adapted to exterior environmental changes well.
Owner:BEIHANG UNIV

Geologic history period sandstone reservoir porosity evolution recovery method

ActiveCN102748016APorosity recoveryEffective Porosity PredictionPermeability/surface area analysisBorehole/well accessoriesPorosityRecovery method
The invention relates to a geologic history period sandstone reservoir porosity evolution recovery method which comprises the following steps: (1) establishing a sandstone reservoir diagenesis evolution sequence and a corresponding paleoburial depth of the reservoir during diagenesis; (2) establishing a normal compaction layout; (3) establishing a functional relationship between porosity and surface porosity; (4) carrying out sandstone reservoir porosity backstripping inversion under the restriction of the diagenesis sequence; (5) correcting by mechanical compaction and hot compaction; and (6) on the basis of the steps above, determining the true porosities of the main diagenetic stages, and establishing the geologic history period sandstone reservoir porosity evolution curve. The invention intensively solves the key problems of the determination of diagenesis occurrence time and paleoburial depth, the relationship between porosity and surface porosity, compaction correction and the like in the existing geologic history period sandstone reservoir porosity evolution recovery method, can effectively predict the porosity of the sandstone reservoir in the oil gas forming period, and provides instructions for effective evaluation on the reservoir.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Area traffic jamming triggering point record analysis system and operation method thereof

The invention relates to an area traffic jamming triggering point record analysis system and an operation method thereof; the system is composed of an analysis processing computer arranged at the control center, a traffic jamming rapid alarming device arranged on the detection point of the road and a communication line; a jamming detection point upstream and downstream relation database is preset on the analysis processing computer, and a triggering point analytical procedure is operated; after the analysis processing computer receives one jamming alarming message transmitted by the jamming rapid alarming device at each time, the triggering point analytical procedure is started immediately; after the triggering point analytical procedure finds that traffic jamming happens at one jamming detection point, the downstream jamming detection point of the jamming detection point is searched from the upstream and downstream relation database, and according to the current jamming state and the occurrence time of the current jamming state of the downstream jamming detection point, weather the jamming is affected and generated by the downstream traffic jamming waves is deduced, if yes, the head of a jamming chain is found as the triggering point and a prompt message is given, and the prompt message can be stored separately for use in the future.
Owner:姜廷顺

Method and system for analyzing fault and quantized operational data for automated diagnostics of locomotives

Method and system for processing fault log data from a machine comprising a plurality of respective pieces of equipment are provided. Operational parameter data indicative of operational and / or environmental conditions for the respective pieces of equipment is further processed. The method allows collecting fault log data comprising a plurality of faults from any malfunctioning piece of equipment. The method further allows collecting operational parameter data relatable to each respective time of occurrence of the plurality of faults from the malfunctioning equipment. Respective identifying actions allow identifying a plurality of distinct faults in the fault log data and a plurality of data buckets indicative of respective levels of quantization of each operational parameter. At least one distinct fault cluster is generated from the plurality of distinct faults. Each generated fault cluster is related a respective quantization level of at least one operational parameter to provide at least one fault cluster that may be configurable in at least one of the following cluster configurations: a stand-alone fault cluster configuration and a cluster configuration enhanced with quantized operational parameter data. A plurality of weighted repair and distinct fault cluster combinations enhanceable with quantized operational parameter data is generated. At least one repair for the at least one fault cluster enhanceable with quantized operational parameter data is generated using the plurality of weighted repair and distinct fault cluster combinations enhanceable with quantized operational parameter data.
Owner:GENERAL ELECTRIC CO
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