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31results about How to "Intuitive perception" patented technology

Vehicle lane-changing risk recognition method under expressway vehicle infrastructure cooperative environment

ActiveCN110085056AFacilitate lane change conflictsAvoid problems such as lane changing accidentsAnti-collision systemsRisk levelRelevant information
The invention discloses a vehicle lane-changing risk recognition method under an expressway vehicle infrastructure cooperative environment. The method comprises the following steps that: 1) selectinga target vehicle to obtain relevant information; 2) taking the target vehicle as an original point to establish a coordinate system, and evenly dividing the coordinate system into m*n pieces of grid units; 3) establishing a target vehicle lane-changing trajectory prediction model, and calculating displacement and a position in a target vehicle lane-changing process; 4) establishing a surrounding vehicle movement trajectory prediction model, and calculating the displacement and the position of the surrounding vehicle during a target vehicle land-changing period; 5) establishing a vehicle lane-changing conflict recognition model, and making the conflict conditions of different lane-changing conflict types clear; 6) carrying out division on the basis of a kinetic energy loss division lane-changing risk level, and showing by different colors; and 7) through computer programming, realizing vehicle lane-changing risk recognition, and outputting a potential lane-changing risk level and a corresponding color. By use of the method, the problem of intelligent vehicle lane-changing risk advanced recognition under the expressway vehicle infrastructure cooperative environment can be solved.
Owner:SOUTH CHINA UNIV OF TECH

Method and system for accessing wireless local area network, short message push platform and portal system

Embodiments of the invention disclose a method and a system for accessing a wireless local area network, a short message push platform and a portal system. The method comprises the following steps: when a mobile phone terminal enters a WLAN coverage area, the short message push platform generates a URL link carrying a user identity certificate parameter and sends the URL link to the mobile phone terminal; when a user sends an access request to the PORTAL by clicking the URL link, the PORTAL system verifies the validity of the URL link, and the short message push platform authenticates the user identity certificate parameter in the URL link; if the authentication is passed, the PORTAL system obtains an Internet password of the user from a RADIUS, creates an authentication request and sends the authentication request to a BRAS, wherein the authentication request comprises a mobile phone number and the Internet password of the user, and the BRAS requests the RADIUS to authenticates the authentication request. The method disclosed by the embodiments of the invention can be used for simplifying the login operation of the user for accessing the WLAN through the mobile phone terminal and avoiding the generation of WLAN Internet fee disputes.
Owner:CHINA TELECOM CORP LTD

Environmental status time-space model generation method and system based on digital measurable images

The invention discloses an environmental status time-space model generation method and system based on digital measurable images. The method includes: conducting collection through a mobile carrier platform and simultaneously obtaining the environmental parameters and the digital measurable images of a real scenario in each collection position; building a time-space model of the real scenario through the digital measurable images; building a time-space sequence index through exterior orientation elements of the digital measurable images and the collection time, measuring the terrain key points of the scenario according to the digital measurable images and constituting a scenario rough model through the terrain key points; and organizing the environmental parameters according to the built time-space model, adding the marked result to the time-space model by a recording user through the marked pollution feature points and corresponding evaluation information by the digital measurable images, and obtaining outputting and displaying the environmental status time-space model of the real scenario. According to the environmental status time-space model generation method and system, the digital measurable images are regarded as a special environmental parameter used for building the environmental status time-space model, and the measurability of the digital measurable images is fully utilized.
Owner:测绘遥感信息工程国家重点实验室深圳研发中心

Braking noise evaluation method combining subjective evaluation and objective test

The invention discloses a braking noise evaluation method combining subjective evaluation and objective test. The method comprises a subjective evaluation process, an objective test process and braking noise weighting evaluation. The subjective evaluation process comprises subjective scoring, VER value determination and SNI value calculation; and the objective test process comprises a braking noise intensity test and a braking scream intensity test. According to the braking noise initiative evaluation method, the AVG score of braking noise is objectively tested and calculated according to a subjective evaluation process. Compared with a traditional subjective evaluation scoring method for automobile braking noise, the evaluation method of the invention integrates objective tests for the sound pressure level and the braking scream in the braking process on the basis, and improves the evaluation method in combination with a large amount of actual measurement data. And meanwhile, subjective evaluation and objective test results are fused by utilizing an interpolation method, and finally, the braking noise is relatively perfectly evaluated by utilizing a centesimal system, so that the braking noise can be perceived and evaluated more intuitively.
Owner:HOZON NEW ENERGY AUTOMOBILE CO LTD

Project information display method and device, electronic equipment and readable medium

The embodiment of the invention provides a project information display method and device, electronic equipment and a readable medium, and the method comprises the steps: enabling a system interface of a project management system to comprise a project viewing control, and displaying a region detail graph in the system interface by responding to a selection operation for the project viewing control, wherein the regional detail graph can comprise at least one project tag; then responding to a selection operation for the project tag, determining a target project tag, displaying an project detail floating window corresponding to the target project tag, and displaying project detail information corresponding to the target project tag through the project detail floating window, so that when the user can browse the project information, the project label is displayed in the regional detail map, so that the information display mode is enriched, the user can intuitively and quickly perceive the geographic position corresponding to each project, the detail information corresponding to the project can be displayed for the user by displaying the project detail floating window, and the information acquisition efficiency of the user is improved.
Owner:ZHUHAI DAHENGQIN TECH DEV CO LTD

Current transformer for transformer substation

The invention discloses a current transformer for a transformer substation, which prolongs the position of an oil drain port, expands the function of the oil drain port and is very practical. In addition, by improving the top protective cover and the interior of the top protective cover, the height of an expander can be observed more clearly, and the operation process of the expander can be conveniently limited through a limiting assembly integrated inside the expander. According to the invention, a tee joint is mounted at an oil discharge port and comprises an oil discharge port interface used for being mounted with the oil discharge port, a reserved interface used for being connected with a plug or an oil pressure monitoring sensor and an interface used for being connected with a leading-down sampling pipe; a leading-down oil discharging valve is mounted at the bottom of the leading-down sampling pipe; a window is formed in the top protective cover, a circle of rubber frame is installed on the inner wall of the window, an indication line observation window is installed in the rubber frame, and the outer edge of the rubber frame is coated with a circle of waterproof glue; the expander is coated with a circle of position indication line; and an expander oiling and oil taking limiting assembly is mounted in the top protective cover.
Owner:STATE GRID XINJIANG ELECTRIC POWER CORP +1

Method and device for visualizing static relationship network relationship edge

The invention relates to a visualization method and device for a static relationship network relationship edge, and belongs to the field of relationship network visualization. The method includes: determining a sending end and a receiving end of a static relationship network relationship edge according to the relationship node of the static relationship network, the width of the sending end beinggreater than the width of the receiving end, dividing the relationship edge into at least two sections, and when the relationship edge is divided into two sections, the width of one section of the relationship edge being the width of the receiving end and the width of the other section of the relationship edge being the width of the sending end; when the relation edge is divided into more than three sections; starting from the relation edge of the section where the receiving end is located to the relation edge of the section where the sending end is located, the width is set for the relation edge of each section in sequence from small to large, the width of the relation edge of the section where the receiving end is located is the smallest and is the width of the receiving end, and the width of the relation edge of the section where the sending end is located is the largest and is the width of the sending end; and displaying all relationship nodes of the static relationship network, and displaying all relationship edges of the static relationship network in a width gradual change mode.
Owner:PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU

Air tightness detection equipment for double-screw refrigeration compressor

InactiveCN111896189ALive oilingTo achieve the detection of air tightnessDetection of fluid at leakage pointRotary piston pumpsRefrigeration compressorEngineering
The invention relates to the technical field of refrigeration compressor air tightness detection, and further discloses air tightness detection equipment for the double-screw refrigeration compressor.The equipment comprises a shell. Airtight plates are fixedly connected to the upper side and the lower side of the shell. The side, away from the shell, of the airtight plate is fixedly connected with a gas storage groove. The ends, away from the airtight plates, of the air storage grooves are fixedly connected with deformation plates. A base is fixedly connected to the interior of the shell, a screw is movably connected to the surface of the base, a supporting frame is fixedly connected to the bottom of the base, a homogenizing groove is formed in the supporting frame and located at the bottom of the oil outlet nozzle, an oil filtering plate is fixedly connected to the bottom of the supporting frame, an elastic plate is fixedly connected to the bottom of the oil filtering plate, and a spring rod is movably connected to the bottom of the elastic plate. When the two screws rotate in a meshed mode with the base bearing, pausing occurs, so that the set thread distance between the two screws is changed, then the connecting positions of the bearings and the screws are lubricated, and the effect of real-time oiling through the working state of the screws is achieved.
Owner:张婷婷

Single-screen multi-picture boundary display method and device, electronic equipment and storage medium

The invention relates to a single-screen multi-picture boundary display method and device, electronic equipment and a storage medium, and belongs to the technical field of single-screen multi-picturedisplay. The method comprises the steps: obtaining a plurality of images, and carrying out the picture splicing of the plurality of images; respectively obtaining a first boundary region and a secondboundary region on two sides of a boundary line of two adjacent pictures; respectively calculating color characteristic values of the first boundary region and the second boundary region; calculatingthe color matching degree of the first boundary region and the second boundary region according to the color feature values of the first boundary region and the second boundary region; and judging whether the color matching degree is greater than a preset threshold, and if so, performing color display on the boundary line according to a preset rule. According to the invention, the problem that ina single-screen multi-picture application scene, when the image content between adjacent pictures is similar, the boundary is not easy to define, resulting in visual confusion of a user, is solved. According to the invention, boundaries between adjacent pictures can be distinguished and defined, and visual confusion of a user is avoided.
Owner:北京博睿维讯科技有限公司

Method and system for generating spatiotemporal model of environmental status based on measurable real-world images

The invention discloses an environmental status time-space model generation method and system based on digital measurable images. The method includes: conducting collection through a mobile carrier platform and simultaneously obtaining the environmental parameters and the digital measurable images of a real scenario in each collection position; building a time-space model of the real scenario through the digital measurable images; building a time-space sequence index through exterior orientation elements of the digital measurable images and the collection time, measuring the terrain key points of the scenario according to the digital measurable images and constituting a scenario rough model through the terrain key points; and organizing the environmental parameters according to the built time-space model, adding the marked result to the time-space model by a recording user through the marked pollution feature points and corresponding evaluation information by the digital measurable images, and obtaining outputting and displaying the environmental status time-space model of the real scenario. According to the environmental status time-space model generation method and system, the digital measurable images are regarded as a special environmental parameter used for building the environmental status time-space model, and the measurability of the digital measurable images is fully utilized.
Owner:测绘遥感信息工程国家重点实验室深圳研发中心
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