53 results about "Coverage space" patented technology

A method of managing a fluid or gas reservoir is disclosed which assimilates diverse data having different acquisition time scales and spatial scales of coverage for iteratively producing a reservoir development plan that is used for optimizing an overall performance of a reservoir. The method includes: (a) generating an initial reservoir characterization, (b) from the initial reservoir characterization, generating an initial reservoir development plan, (c) when the reservoir development plan is generated, incrementally advancing and generating a capital spending program, (d) when the capital spending program is generated, monitoring a performance of the reservoir by acquiring high rate monitor data from a first set of data measurements taken in the reservoir and using the high rate monitor data to perform well-regional and field-reservoir evaluations, (e) further monitoring the performance of the reservoir by acquiring low rate monitor data from a second set of data measurements taken in the reservoir, (f) assimilating together the high rate monitor data and the low rate monitor data, (g) from the high rate monitor data and the low rate monitor data, determining when it is necessary to update the initial reservoir development plan to produce a newly updated reservoir development plan, (h) when necessary, updating the initial reservoir development plan to produce the newly updated reservoir development plan, and (i) when the newly updated reservoir development plan is produced, repeating steps (c) through (h). A detailed disclosure is provided herein relating to the step (a) for generating the initial reservoir characterization and the step (b) for generating the initial reservoir development plan.

A method and apparatus for ensuring efficient validation coverage of an architecture, such as protocol or interconnect architecture, is herein described. A coverage space of states for an architecture is generated and stored in a database. During simulation, states of the coverage space encountered are marked. From this, the states encountered and not encountered may be determined. Based on the states not encountered, a targeted test suite is developed to target at least some of the states not encountered during previous simulation. This feedback loop from simulation to refining of a test suite based on states of a coverage space not encountered during simulation may be recursively repeated until adequate validation, i.e. an adequate confidence level of validation, of the coverage space is achieved.

A surveillance system and methods are disclosed. The system of the invention includes computing means connected to memory means, input means and a plurality of sensors, such as video camera and plurality of display screens. The system is adapted to compute for the sensors a 3D coverage space which considers terrain data and man-made objects and specific features of the sensors such as the 3D location and the pan, tilt and zoom (PTZ) of the camera and to establish a data base indicative of the coverage area. The system and method of the invention are also adapted to support tracking of an object within the coverage space of the sensors, either in automatic or manual mode and to provide a user of the system with data indicative of sensors into the coverage space of which a tracked object is about to enter.

The invention discloses a data fusion-based atmosphere particulate matter remote sensing monitoring method, and relates to the technical field of air quality monitoring. According to the method, particulate matter concentration data of complete coverage space are obtained by fusing satellite remote sensing inversion data and ground surface monitoring data and performing interpolation operation on a fused result, so that the problem of particulate matter concentration data deficiency caused by weather, a satellite orbit interval, a cloud cover problem and the limitation of a dim target inversion algorithm is effectively solved, and the accuracy rate of air quality monitoring is greatly improved.

Functional coverage techniques during design verification using cross-product coverage models and hole analysis are enhanced by the use of coverage queries. After running a test suite, a core set of non-covered events is specified. A coverage query is then automatically constructed and executed on the test results to identify a hole in the functional coverage that satisfies conditions of the coverage query and includes the core set. The results of the query are presented as a simplified view of the coverage of the events in the cross-product space. Use of coverage queries allows a verification team to focus on specific areas of interest in the coverage space and to deal practically with highly complex coverage models. It also avoids the burden of producing and evaluating complete hole analysis reports.

The invention provides an indoor positioning method based on environmental backscattering. The indoor positioning method comprises the following steps that step one, a radio frequency source RFs emitsa signal: the tags of which any three of more than four tags are not arranged at the spatial position of the same plane are included; step two, environmental backscattering of the tags: the tags receive the signal of the radio frequency source RFs and transmit the signal to a mobile terminal Q through the backscattering mode; step three, the mobile terminal Q detects and positions the received tag signal: the four tags of the maximum signal intensity RSSI value are selected and recorded as Ta', Tb', Tc' and Td'; and step four, a unique triangular pyramid can be determined by four coordinatesand the position coordinates (x, y, z) of the unique mobile terminal Q can be determined through the triangular pyramid. The useful signal receiving power of the target can be enhanced, the coverage space can be increased, the method has great anti-multipath effect, the arrangement number of the tags can be saved and the cost of the positioning device can be reduced.

Functional coverage techniques during design verification using cross-product coverage models and hole analysis are enhanced by the use of coverage queries. After running a test suite, a core set of non-covered events is specified. A coverage query is then automatically constructed and executed on the test results to identify a hole in the functional coverage that satisfies conditions of the coverage query and includes the core set. The results of the query are presented as a simplified view of the coverage of the events in the cross-product space. Use of coverage queries allows a verification team to focus on specific areas of interest in the coverage space and to deal practically with highly complex coverage models. It also avoids the burden of producing and evaluating complete hole analysis reports.

The invention provides an optical module, and solves a problem of heat radiation of a drive chip covered by a lens assembly. The optical module comprises a circuit board, the lens assembly, a laser device or a detector, the drive chip, a heat-radiating fin which is surface-mounted on the upper surface of the drive chip, and a heat-conducting layer which is laid on the circuit board. The laser device, the detector and the drive chip are surface-mounted on the circuit board and are covered by the lens assembly. The heat-radiating fin is downwardly bent from the upper surface of the drive chip and then connected with the heat-conducting layer. Partial or the entire heat-conducting layer is laid on the part of the circuit board without coverage of the lens assembly. The heat-radiating fin is surface-mounted on the upper surface of the drive chip in the coverage space of the lens assembly, and the heat-radiating fin and the heat-conducting layer are connected to form a heat radiation path so that heat radiated by the drive chip in the coverage space of the lens assembly is conducted out of the space and thus the technical effect of heat radiation is realized.

The invention discloses a high-speed railway microwave communication network, which is used for realizing signal relay between a movement carrier internal communication network and a carrier external communication network on high-speed railways. The network comprises a plurality of rail base relay devices and at least one vehicle-mounted relay device, wherein the plurality of rail base relay devices are laid along the high-speed railway rails, are arranged within a rail construction limit and are used for realizing signal relay between the external communication network and the vehicle-mounted relay device; each rail base relay device has a coverage space; the at least one vehicle-mounted relay device is fixed on the carrier and realizes signal relay between a rail base relay device corresponding to the current coverage space and the carrier internal communication network; and the frequency range of the signal is limited in one or more sub-frequency ranges from 4 to 42 GHz. Because microwave frequency ranges are adopted for signal relay of internal and external networks, the microwave communication network has the advantages of stable channel and high communication capacity; and because the system is enclosed in the construction limit of the high-speed railway, the network has the advantages of high reliability, high universality, low cost and the like.

A surveillance system and methods are disclosed. The system of the invention includes computing means connected to memory means, input means and a plurality of sensors, such as video camera and plurality of display screens. The system is adapted to compute for the sensors a 3D coverage space which considers terrain data and man-made objects and specific features of the sensors such as the 3D location and the pan, tilt and zoom (PTZ) of the camera and to establish a data base indicative of the coverage area. The system and method of the invention are also adapted to support tracking of an object within the coverage space of the sensors, either in automatic or manual mode and to provide a user of the system with data indicative of sensors into the coverage space of which a tracked object is about to enter.

The invention relates to a method for remotely sensing and quantitatively monitoring steppe vegetation coverage space-time dynamic change based on normalized difference vegetation index (NDVI) data, and belongs to the technical field of vegetation coverage dynamic remote sensing and monitoring. In order to solve the problem that the quantitative research on remote sensing and monitoring of steppe vegetation coverage dynamic change is rare, the quantitative monitoring method provided by the invention comprises the following steps of: calculating to obtain six NDVI indexes, such as an NDVI yearly value, a yearly maximum value, a yearly minimum value, a yearly maximum value appearance date, a yearly minimum value appearance date and a season dynamic, which represent a steppe vegetation coverage situation, by using an NDVI time sequence file; and quantitatively monitoring a space-time dynamic change process, a phenological characteristic and a dynamic change tendency of steppe vegetation coverage by calculating a yearly dynamic change rate of the NDVI indexes within a certain time period and performing trend analysis by a Mann-Kendall method. The method is applicable to all vegetation NDVI data.

A system and method for determining policy coverage and generating a suggested policy for gaps in the policy coverage includes determining policy coverage for one or more policies in a policy coverage space and determining regions uncovered by the policy coverage in the policy coverage space. Suggested policies are generated to cover the regions uncovered by the policy coverage. The policy coverage is supplemented with the suggested polices to complete coverage of a policy set.

The invention discloses a vehicle lightning protection device. The vehicle lightning protection device of the invention is characterized in that the vehicle lightning protection device comprises an air terminal and a fluid conductive medium ground unit; wherein the ground metal conductor of the air terminal is in conduction connection with the sprayer of the fluid conductive medium ground unit or the ground metal conductor of the air terminal is in conduction connection with the gound connection conductor located in the conductive medium spraying coverage space of the fluid conductive medium ground unit, the fluid conductive medium ground unit comprises a lightning signal detection module and a conductive medium spraying module; and the lightning signal detection module is used to control the conductive medium spraying module spray conductive medium when a lightning signal which is greater than a safety threshold is detected to make the conductive medium form a charge discharge channel between ground metal conductor of the air terminal and the ground.

A lightweight, easy to assemble spa cover kit is disclosed herein. The cover kit includes a square or rectangular-shaped overhead cap pivotally attached at two corners along one end to two dual hinged support posts. The cap is made of lightweight, weather-proof material, such as molded fiberglass, and may include skylights to allow natural light through during use. The lower end of each dual hinged support post is pivotally attached to the deck surface on which the spa sits. During use, the upper end of each dual hinged support post is pivotally attached to one comer of the cap. After the lower ends of the dual hinged support posts are attached to the deck and the upper ends of the support posts are attached to the corners of the cap, the dual hinged support posts are slowly lifted to a vertical position while the cap is slowly rotated so that it is aligned horizontally over the spa. The set of fixed support posts are then inserted into opposite corners of the cap to support the cap in a horizontal position directly over the spa. The ends of the fixed support posts are then attached to the deck. Optional extension covers may be attached to the cap to provide additional covered space.

The invention discloses a variable density-based crust thickness gravity inversion method. The variable density-based crust thickness gravity inversion method comprises the steps of acquiring crust thickness and density data and upper mantle density data of a crust model CRUST 1.0 with global coverage space resolution 1 degree by 1 degree; building crust-mantle density difference changing with a horizontal position according to density and thickness of upper crust, intermediate crust and lower crust and upper mantle density data of the crust model CRUST 1.0; obtaining gravity abnormality caused by fluctuation of a moho surface by bouguer gravity anomaly; and converting depth of the moho surface and obtaining the crust thickness by gravity abnormality caused by the bouguer gravity anomaly. Compared with the prior art, disclosed document is used as a foundation, a practical crust-mantle density model is built, the variable density-based crust thickness gravity inversion method is easily implement from technology, an inversion result more conforms to actual geologic characteristic, and higher accuracy is achieved.

The invention provides a multifunctional nursing vehicle for a neurology department. The vehicle comprises a locker disinfecting device, a drying device and a handheld gun. A disinfectant pumped by awater pump can be atomized and sprayed into a locker through a fist atomization nozzle, and drugs and instruments inside the locker can be disinfected; after disinfection is completed, a hot-air blower of the drying device is used for drying, meanwhile, the disinfectant is gasified, and secondary disinfecting is performed; the handheld gun is used for atomizing and spraying the disinfectant pumpedby the water pump to the body of the nursing vehicle, an operation table and objects outside the nursing vehicle for disinfection, meanwhile, the handheld gun can also be used for drug changing cleaning, small-area contamination disinfection, drying and the like, the disinfecting device above a waste barrel can disinfect waste placed every time, the disinfection coverage space range is ensured, and the disinfection capability of the nursing vehicle is improved, and the application range of the nursing vehicle is improved; a control system can be connected into a program of an all-in-one vehicle of the informatization nursing vehicle, one-button full-automatic operation is achieved, workloads of nurses are lowered, and labor force is saved.

The invention provides a load balancing method for a super-dense heterogeneous mobile cellular network, comprising the steps of 1, dividing the coverage space of the super-dense heterogeneous mobile cellular network into a plurality of checkered grids with the same size, and periodically making statistics on the average flow rate in each checkered grid to obtain the loading capacity in each checkered grid, and using the loading capacity for representing time volatility and space difference of the network load; and 2, distributing base station providing coverage service corresponding to each checkered grid according to the loading capacity in each checkered grid and allocated wireless resources of each base station in the super-dense heterogeneous mobile cellular network. According to the load balancing method for the super-dense heterogeneous mobile cellular network, aiming at the characteristic that the loading capacities in 4G and post-4G mobile cellular networks are nonuniform in time variation and space distribution, effective load balancing is achieved, and utilization efficiency of wireless resources (such as fixed spectral bandwidths and fixed transmission efficiency of base stations) and system capacities in 4G and post-4G super-dense heterogeneous mobile cellular networks are improved.

The invention provides an indoor three-dimensional positioning method based on distributed antennas. The method realizes indoor real-time space positioning by utilizing the distributed antennas and combined with a three-dimensional beam. A distributed antenna set effectively improves system coverage, and power distribution in a coverage area can be adjusted through distribution of the antenna set,thereby reducing average transmitting power of the terminal; antenna units are scattered in a cell, thereby shortening average access distance, and reducing path loss; in a 3D precode construction method based on antenna downward inclination angle correction, the calculated precode comprises horizontal dimension and vertical dimension channel information, and influence of the downward inclinationangle, thereby effectively suppressing interference and improving overall system performance; wave beam in the vertical dimension is increased, thereby improving useful signal reception power of a terminal to be positioned, increasing coverage space, and realizing a better anti-indoor-multipath effect; and a centroid space coordinate estimation method based on sphere center-circumcenter connection line intersection point and distance weighing is high in accuracy and easy for engineering realization.

A system and method for determining policy coverage and generating a suggested policy for gaps in the policy coverage includes determining policy coverage for one or more policies in a policy coverage space and determining regions uncovered by the policy coverage in the policy coverage space. Suggested policies are generated to cover the regions uncovered by the policy coverage. The policy coverage is supplemented with the suggested polices to complete coverage of a policy set.

The invention relates to an underwater vehicle collaborative search efficiency evaluation method based on situation simulation and Monte Carlo, and belongs to the technical field of underwater vehicle collaborative application research. The method comprises the following steps: 1, preprocessing a search sea area; 2, establishing a three-dimensional sonar vision field model; 3, establishing a search target model; 4, simulating a search process in a three-dimensional space according to a search strategy; 5, in the three-dimensional space, determining whether the target is located in the current sonar coverage area or not; 6, calculating the capability of sonar detection and identification of the target in the current coverage space; and 7, performing situation simulation for many times, calculating the number of encountered and identified targets in each search process, and obtaining a collaborative search probability through data processing to represent the search efficiency. According to the method, the quantization problem of the search probability in a three-dimensional space is solved through situation simulation and Monte Carlo, the method can be used for evaluating the task execution effect of the underwater vehicle cooperative system under a set search strategy, different search strategies are compared, and reference is provided for scheme formulation.

The invention discloses an apparatus which can automatically switch a continuous medium and a single page medium of a printer, comprising a power-driven device and a paper tractor of continuous medium. The utility model is characterized in that the central gear of the power-driven device meshes with a switching driving gear which moves together with a switching edentulous gear on the same shaft, partial circum of the switching edentulous gear is provided with tooth and meshes with the tooth of a switching arm changing gear, and clutches are installed on the switching arm changing gear; a status switching driving gear meshes with a rear friction roll gear and moves together with a status switching gear on the same shaft; the status switching gear meshes with driven gears of the paper tractor of the continuous medium; the switching arm gear is provided with a resetting spring. As the invention adopts the structure, the invention is characterized by low manufacturing cost and small coverage space, which can realize the automatic switch between the continuous medium and the single page medium of the printer.

The invention discloses a stack buffer overflow vulnerability detection method based on a program diagram. The method comprises the steps that 1, after source codes are statically analyzed, constructing a corresponding program diagram; 2, traversing the program chart to find a danger function to obtain an overflow point position; 3, calculating the address offset between the buffer space operatedby the overflow point comparison function and the size of the space to be covered; And 4, judging whether address offset occurs or not to obtain a vulnerability detection result, Wherein the danger function mainly aims at three danger functions of Strncpy (), Memcpy () and Gets (); for the Strncpy () and Memcpy () functions, buffer area space O and coverage space C of function operation are obtained, and for the Gets () function, only buffer area space O of the function needs to be obtained; For a Strncpy function, if the replication length n<O, there is no vulnerability, if the replication length n>O and O<C, there is vulnerability; For the Memcpy function, if the copy length n <O, there is no vulnerability, if n<O and O<C, then there is vulnerability; for the Gets function, if O = [0, infinite], then there is vulnerability..

The present invention discloses a method and apparatus for determining the priorities of neighbor cells. The objective of the invention is to effectively improve the accuracy of neighbor cells, code resources, frequency resource planning and optimization so as to improve the switching success rate of cells and reduce interference between the neighbor cells. The method for determining the priorities of the neighbor cells includes the following steps that: a stereoscopic space model including the coverage spaces of a cell and each neighbor cell of the cell is determined, a space corresponding to the stereoscopic space model covers the cell and each neighbor cell of the cell; stereoscopic spaces covered by the cell and the neighbor cells are determined in the stereoscopic space model, and a stereoscopic space which is commonly covered by the cell and each neighbor cell is determined according to the stereoscopic spaces covered by the cell and the corresponding neighbor cell; and the sequence of the priorities of the neighbor cells is determined according to the sizes of the stereoscopic spaces which are commonly covered by the cell and the neighbor cells.

The embodiment of the invention provides a method and a device for determining a three-dimensional coverage space of a monitoring video, and a storage medium. The method comprises the steps of: obtaining virtual camera parameters of a calibrated virtual camera in a three-dimensional scene, and obtaining the resolution of a video stream of an entity camera corresponding to the virtual camera; determining coordinates of a plurality of vertexes of a video picture of the entity camera under a camera coordinate system according to the virtual camera parameters and the resolution, and converting thecoordinates of the plurality of vertexes under the camera coordinate system into coordinates of the plurality of vertexes under a world coordinate system; and determining the coverage space of the virtual camera in the three-dimensional scene according to the virtual camera parameters and the coordinates of the plurality of vertexes in the world coordinate system. According to the invention, theproblem that the three-dimensional coverage space of the camera monitoring video cannot be accurately determined is solved.

Especially designed for large covered spaces, the system is made up of a series of conveniently distributed static spatial modules (1) and a series of tracking units (2), associated with each player or user, so that the spatial modules (1) are formed by a square panel, in which two groups of LED diodes of different types of visible spectrum reference LEDs (5) and infrared identification LEDs (6) are integrated, each spatial module (1) including configuration means for its identification diodes (6) as well as power supply means or means for connecting to a power supply. Simultaneously, the tracking units (2) include a series of cameras (7) with different orientations, associated with an image-processing unit (8), having a communications port (9) and electrical power supply means (10). The system is complemented by software for processing the information sent and previously managed by the tracking units, which can be implemented indistinctly via the processing unit associated with each tracking unit or in a more powerful external processing unit, via a communication network.

The invention discloses an unmanned aerial vehicle bridge floor coverage motion planning method, belongs to the technical field of unmanned aerial vehicle control, and aims to solve the motion planning problem that an unmanned aerial vehicle stably completes the full coverage of the bridge floor and meets the coverage resolution requirement in an automatic detection task of a bridge surface. The method comprises the following steps of firstly, establishing a geographic coordinate system, an airframe coordinate system and a bridge floor coordinate system, giving a measurement model of an airborne camera, and giving the definitions of a coverage space, a coverage surface and the coverage resolution; secondly, decomposing a topological structure of the bridge floor by adopting a linear scanning form, and determining a bow-shaped coverage path for each decomposition unit; then determining the coverage sequence of the units by adopting an integer optimization method; then giving two mathematical descriptions of the flight space of the unmanned aerial vehicle under a coverage task by combining the distance range from the unmanned aerial vehicle to the bridge floor; and finally, taking the flight stability of the unmanned aerial vehicle as an index, and combining with limitations, such as position, speed, acceleration, flight space, full coverage requirements, etc., providing a method for obtaining a motion trail function by adopting curve optimization. The method is suitable for the unmanned aerial vehicle to quickly and stably complete the movement track planning of full coverage of the bridge floor under a bridge detection task.

The embodiment of the invention discloses a data processing device, which is used for a shape space, wherein the shape space comprises a plurality of micro spaces; each micro space corresponds to a coverage space of one access point on a plurality of node lines; the shape space is divided into a plurality of sub spaces; the data processing device comprises a region obtaining unit, a region judging unit, a time judging unit and a terminal counting unit, wherein the region obtaining unit is used for obtaining the located sub space of a terminal according to the location information of the terminal; the region judging unit is used for judging whether the located sub space of the terminal is a preset legal sub space of the terminal or not; if the located sub space of the terminal is not the preset legal sub space of the terminal, a cross-region warning signal is generated; the time judging unit is used for obtaining the remaining time of the terminal in the first sub space; if the remaining time of the terminal in the first sub space exceeds a first threshold, a timeout warning signal is generated; the terminal counting unit is used for obtaining the terminal number in a second sub space; and if the terminal number in the second sub space is greater than a second threshold, an overcrowding warning signal is generated. The data processing device has the advantage that the security performance can be improved.

The invention discloses a data processing device and a data processing method with reliable and safe performance. The data processing device is used for a shape space, and the shape space includes a plurality of micro spaces, and each micro space corresponds to a node on a multi-node line. The coverage space of the access point, the shape space is divided into multiple subspaces; the data processing device includes: an area acquisition unit, configured to acquire the subspace where the terminal is located according to the positioning information of the terminal; an area judgment unit, It is used to judge whether the subspace where the terminal is located is the preset legal subspace of the terminal, and if the subspace where the terminal is located is not the preset legal subspace of the terminal, generate a cross-regional alarm signal; the purpose of the present invention is to Provided are a data processing device and a data processing method that strengthen the monitoring and control of terminals, improve the safety performance of use, and design more humanized reliable safety performance.

The embodiment of the invention provides a self-moving equipment operation method and equipment and a storage medium. In some exemplary embodiments of the present application, at least one external sensor is deployed in a working space of the self-moving equipment; at least one external sensor is used for collecting environment information in respective covering space, whether a target space needing to execute a job task exists or not is determined based on the environment information, and if yes, the self-moving equipment is controlled to move into the target space to execute the job task according to identification information of the target external sensor deployed in the target space. According to the embodiment of the invention, the sensors deployed in the working space of the self-moving equipment are fully utilized; the number of sensors on the self-moving equipment can be reduced, the size of the self-moving equipment can be saved, miniaturization of the self-moving equipment isfacilitated, and the self-moving equipment can conveniently and rapidly obtain environment information of all operation spaces so that the self-moving equipment can conveniently move into the operation spaces to execute corresponding operation tasks later.