11 results about "Geographic information system" patented technology

The invention discloses an information aggregation and a query method based on a geographic coordinate, including the following steps: original information related to geographic location is collected from the internet; geographic location information and hierarchical information are extracted from the collected original information to form an information entry; binding incident of the obtained information entry and the corresponding location of a geographic information system (GIS) is completed; according to the relation between the coordinate positions of the GIS, analysis and aggregation of the related information entry are completed; finally, the method responds to the two-dimensional query operation on an electronic map by a user and displays the query result in a two-dimensional mode. The invention has the advantages of convenient and rapid query, high query efficiency and intuitionistic query result.

The invention discloses a geographic information guide method and a system based on augment reality, which mainly solves the problem that the existing map-type geographic information guide method has poor intuition and needs to identify geographic direction. The guide method of the invention is as follows: firstly, collecting a plurality of images from different angles, and determining the projection coordinate of a target space point on a specified initial image plane by geometric calculation; secondly, accurately determining the coordinate of the target space point in a real-time video by geometric calculation on the basis of the projection coordinate of the target space point on the initial image plane and the real-time angle information of a camera; and finally, overlaying virtual geographic information at the position of the target space point in the real-time video, and fusing the virtual geographic information and real scenes in the video through video treatment, thus ensuring the target to be more visual and intuitive and easier to be identified by people. The invention has the advantage that the virtual geographic information provided by the invention is intuitive and effective, and the invention is applicable to places requiring geographic information guide.

The invention discloses an intelligent management system for street lamps. The intelligent management system for the street lamps comprises a street lamp terminal and a central server, wherein the street lamp terminal comprises a street lamp terminal forwarding module and at least two street lamp terminal controllers, and the central server comprises an intelligent street lamp management module, a GIS space fitting module and a display module. After each street lamp terminal controller collects street lamp fault information of the corresponding joint point, longitude and latitude information and the street lamp fault information of the corresponding joint point are packed to form fault information, and the fault information is sent to the intelligent street lamp management module; the intelligent street lamp management module analyzes the fault information to obtain the longitude and latitude information and the street lamp fault information of the corresponding faulted street lamp joint point, sends the longitude and latitude information to the GIS space fitting module, and sends the street lamp fault information to the display module to carry out display on the street lamp fault information; the GIS space fitting module carries out space fitting on the longitude and latitude information and geographic information to obtain geographical location information, and sends the geographical location information to the display module to carry out display. The intelligent management system for the street lamps has the advantage that a worker can conveniently, rapidly and accurately find out a faulted street lamp according to the geographical location information of the faulted street lamp.

The invention relates to a method for extracting land utilization landmark boundary outline on a remote sensing image. The method comprises the following steps of: registering the remote sensing image with GIS (Geographic Information System) data, and establishing a corresponding relationship between outline nodes and a grid by taking a land utilization object boundary in GIS as an initial value for extracting the land utilization landmark boundary outline on the image; making a statistics on region information of the image in the grid, and obtaining a light spectrum gray level information statistic in the grid; establishing a grid energy minimization function, and importing obtained attribute into the grid energy function; moving any mode, counting whether the total grid energy can be reduced by position change of local nodes, changing the positions of the nodes if the total grid energy can be reduced by the position change of the local nodes, or keeping the positions of the nodes unchanged; and checking a distance between every two nodes, inserting a new node between the nodes which meets certain conditions, carrying out multistage evolution on the outline, and returning to the last step for continuous cycling before the cycle reaches certain conditions. The method disclosed by the invention realizes integrally optimal land utilization boundary characteristic extraction of the high-resolution remote sensing image on the basis of a dynamic outline method of minimum grid energy under the guidance of GIS data.

The invention discloses an on-line detection instrument for hydrogen fluoride gas. The on-line detection instrument comprises a detection system and a central processing system, wherein the detection system comprises a sampling device and an HF (Hydrogen Fluoride) gas sensor which is connected with the central processing system; the sampling device comprises a gas detection chamber; the gas detection chamber is provided with a gas inlet and a gas outlet which are connected with a GIS (Geographic Information System) high-pressure gas chamber; the HF gas sensor is fixed on the gas detection chamber; a testing end of the HF gas sensor is positioned inside the gas detection chamber; gas from the GIS high-pressure gas chamber enters the gas detection chamber; the HF gas sensor is used for detecting the concentration of the HF gas in the gas, and used for transmitting detection information to the central processing system to be processed so as to obtain the content of the HF gas. The invention further discloses a method for quantitatively detecting the hydrogen fluoride gas by using the detection instrument. By utilizing the detection instrument and the method, the content of the hydrogen fluoride gas can be rapidly and accurately detected in real time, and SF6 inside SF6 electric equipment is not lost.

The invention is suitable for the field of geographic information systems, and provides a display method and aa device for an extended tile map in a WebGIS environment, and the method comprises the steps: obtaining an original tile, calculating a cutting target range, cutting a picture, zooming the picture to a target size, rendering, drawing and displaying the target tile, and the like. Accordingto the method, an existing cached tile cache data set is used as a data source; when the zoom level exceeds the maximum preset level of the pyramid, the target tile data exceeding the pyramid level in the tile map service are reconstructed through calculation and then rendered and displayed, a service publisher does not need to continue to plan slice data with a larger scale, and the whole implementation process is simple, low in cost and good in using effect.

The invention discloses a visualization method and apparatus for an emergency event processing state. The method comprises: according to received emergency event alarm information, an emergency plan corresponding to the emergency event is searched in a pre-configured database; on the basis of the emergency plan, processing tasks are issued to all processing nodes and task processing progresses of all processing nodes are obtained; and according to alarm information and the task processing progresses of all processing nodes, the emergency event is identified on a geographic information system (GIS) map of a display interface and a processing progress monitoring table of the emergency event is displayed. In addition, the invention also discloses a visualization apparatus for an emergency event processing state. Therefore, processing states of emergency events can be integrated effectively and thus the monitoring staff can obtain information of an occurrence site of a current emergency event and the processing progresses of all processing nodes clearly by the GIS map of the display interface, so that the monitoring efficiency of the processing progress of the emergency event is improved and the losses caused by the emergency event are reduced.

The invention discloses a geographic information reading device. The geographic information reading device comprises a device body. The device body comprises an input module, a processor module, a storage module and an output module. The input module is electrically connected with a processor module. The processor module comprises a receiving unit, an extracting unit, a searching unit and a matching unit. The receiving unit is used for receiving the keywords transmitted by the input module. The extracting unit is used for extracting the keywords. The extraction unit is electrically connected with a search unit, the search unit searches the content of the storage module, and the matching unit matches the keywords with the primitives corresponding to the keywords. And the matching unit is electrically connected with an output module. Through the arrangement of the processor module comprising the receiving unit, the extracting unit, the searching unit and the matching unit and the storagemodule comprising the keyword storage unit and the primitive storage unit, the searching hierarchy is reduced, and the geographic information reading efficiency is improved.