154 results about "Geographic information services" patented technology

The invention relates to a system to provide local mobile geographic information service based on GPS and mobile terminal. The system comprises: a wireless communication network, a GPS position apparatus and mobile terminal, and an internet and path tracking server. The innovation of the invention is adding the following software functional modules in the mobile terminal: a wireless communication module, a GPS receiving module, an interface displaying module, an interest point inquiring module, a path planning module, a positioning module, a path tracking module, a GIS engine module, a database management module and a data layer made up of an interest point database, a geographic data file, a geographic data index file, a geographic data topological file and a initialization configuration file. The system achieves the advantages of simple, practical, smart in data layer design, convenient in inquiring, low in cost and easy to implement. For storing geographic space data and integrating many software functional modules in the mobile terminal, the system in the invention enable the user to enjoy localized real time geographic space position service conveniently at any moment with less dependence on the server.

A method for providing local mobile geographical information services based on the GPS and mobile terminals comprises firstly, prompting users to select maps, and conducting the map switch according to the selection of the users, and displaying the map on the screen of a mobile terminal, and continuing following one or a plurality of operation steps of local mobile geographical information services according to the subsequent selections of the users, such as translating or reducing or amplifying the map, self-positioning of the mobile terminal, monitoring and tracing path, inquiring interest points, searching the optimal path or exhibiting historical tracks. The method of the invention has simple and practicable operation step and low communication cost, and can realize various local mobile geographical position information services on the mobile terminal simply, real-timely and high effectively at any time and place. The invention has the advantages of strong mobility, small communication content, low cost, excellent practicability, high query efficiency and strong flexibility, which has great application and spread prospects.

A personal golfing assistant system is comprised of software running on a PDA attached directly or remotely to a GPS receiver that enables the user to survey and/or electronically capture geophysical golf data. A handheld device connected to or integrated with a GPS receiver can instead be used. Software allows a golfer to use a handheld PDA/GPS unit during the course of play to mark a ball location automatically and/or determine the distance to golf course targets and/or objects, and to analyze golf related data and generate statistics. The system can send a set of parameters tailored for a specific course to a real time tunable GPS to adjust for optimal performance and can adjust measurements to compensate for environmental condition changes. The system provides an improved graphical method for measuring and displaying distances between a golfer and a golf course object, for displaying multiple measured distances along a line of sight between a golfer and a golf object or target, and for orienting a target or object on a display to coincide with a user's line of sight. There is also provided a method for collecting and uploading golf course geographic information services (GIS) data to an internet accessible server, processing the uploaded data, distributing data upon an authorized user request, and downloading the requested data to an electronic device.

The invention provides distributed level cluster method and system of geographic information service, wherein the cluster system comprises a plurality of load equalizers, a plurality of secondary load equalizers and a plurality of service nodes. Each load equalizer is provided with at least one stage equalizer secondary node; the equalizer secondary node comprises at least one secondary load equalizer; and the secondary load equalizer of the equalizer secondary node is an equalizer middle secondary node or an equalizer leaf node belonging to a root load equalizer. When the secondary load equalizer is the equalizer middle secondary node, the secondary load equalizer has a next stage equalizer secondary node; when the secondary load equalizer is the equalizer leaf node, the secondary load equalizer has a leaf service node secondary node, and the leaf service node secondary node comprises at least one service node. The invention can reduce the storage burden of the cluster system, solve the problem of low reliability of the cluster system, which is caused by the storage burden, realize cluster redundancy and increase the efficiency and the reliability of the whole cluster system and does not need to increase additional costs.

The invention relates to an IFC (Industry Foundation Classes) based three-dimensional digital management platform for a transmission and transformation project. The IFC based three-dimensional digital management platform comprises a geographic information server, a WEB server, a database server, a local area network, a VPN network and a client, wherein a complete multi-source heterogeneous background database is arranged in the database server and comprises DEM data, texture imaging data, GIS original vector data, space entity object data, attribute data and metadata; the space entity object data is obtained by converting the BIM data into the IFC data, and then converting the IFC data into CityGML data. Compared with the prior art, according to the IFC based three-dimensional digital management platform disclosed by the invention, the data resources are integrated, and the functions of exhibition, inquiry, retrieval, positioning, and safety management of electric power facilities are realized, and a complete electric power infrastructure three-dimensional visualized comprehensive application system can be formed.

A geographical information system (GIS) is described that enables querying, analysis and visualization of real-time streaming data pertaining to at least one moving object or entity (e.g., vehicles, people, sensors, weather phenomena, etc.) in conjunction with relatively static multi-temporal geospatial data. An application programming interface is provided to present the GIS functionality for handling dynamically moving objects or entities to clients.

The invention discloses a geographic information acquisition method and a geographic information acquisition system. The geographic information acquisition system comprises a plurality of client sides and a geographic information service center, wherein the geographic information service center comprises a geographic block subdivision module, a Cartesian mesh coordinate system construction module, a longitude and latitude and mesh coordinate conversion module and a search module; the geographic block subdivision module is used for equally dividing the area of an electronic world map into N*N geographic blocks; the Cartesian mesh coordinate system construction module is used for establishing a Cartesian coordinate system used for embodying the distribution situation of the N*N geographic blocks in the electronic world map; the longitude and latitude and mesh coordinate conversion module is used for converting longitude and latitude data in a received geographic information acquisition request into a mesh coordinate in the Cartesian coordinate system, and determining the geographic block corresponding to the mesh coordinate; and the search module is used for searching the general situation information of a geographic area corresponding to the geographic block and returning the general situation information of the geographic area to a client side.

The real-time information investigating system for road traffic includes traffic information collecting system, geographic information system and data analysis and treatment system. The traffic information collecting system consists of information collecting terminal comprising vehicular positioning instrument, CCD camera installed in main road section and cross road, etc; communication server, etc. and the vehicular positioning instrument transmits upwards the vehicle position, speed and other real-time information to the communication server in the information center. The geographic information system and the data analysis and treatment system consist of magnetic disc array, geographic information server and data analysis server. The collected traffic information and the data of the geographic information system are merged to obtain real-time road traffic state data. The present invention can greatly raise the through rate of roads.

The invention discloses a soil humidity real-time monitoring and shared method based on the GNSS-R network and belongs to the technical field of smart city geographic information services. The method integrates soil humidity monitoring original data obtaining, soil humidity on-line inversion and soil humidity monitoring result real-time publication and solves the problem that an existing soil humidity monitoring method can not achieve on-line calculating and real-time sharing. Compared with the existing soil humidity monitoring method, under the internet environment, the soil humidity real-time monitoring and shared method can efficiently conduct the on-line calculating and the real-time sharing of the soil humidity monitoring result, and provides support for the real-time sharing and interoperability of the soil humidity data.

The invention relates to a web service integration method of geographic information, wherein the method is used for integrating the data services of different geographic information service platforms in a network environment; a web integration publishing server is directly connected with server end servers of different geographic information service platforms; the background services of different geographic information service platforms are switched; the calling interface of the web integration publishing server is used for calling the data of geographic information data service according to the platform type information of different platform products and link information; simultaneously, geographic information service data switched into a unified format is provided for a user through web service according to data service standard predefined by a client browser of the user; and the user can call the data services of different geographic information service platforms just through the same browser. The invention provides a web service integration method of geographic information, and the sharing and interoperability of geographic information service resources are greatly strengthened.

The invention relates to a system for providing a local mobile geographic information service based on GPS positioning information. The system for providing the local mobile geographic information service based on the GPS positioning information comprises a wireless communication network, a GPS positioning device, a mobile terminal, the Internet and a server. According to the system for providing the local mobile geographic information service based on the GPS positioning information, by analyzing a Web GIS product-Sharpmap map engine of an open source, a function similar to the SharpMap is developed and applied to a vehicle monitoring system, an effective result scheme is provided at the same time to solve the problem that in the prior art, the map loading speed is low, the scheme that a third-party map engine is used is adopted, and the map engine provided by a third party and the local vehicle monitoring system work cooperatively so as to jointly achieve the vehicle positioning function, the trajectory depicting function and other functions.

The invention discloses a ground precipitation station layout optimization method and device, and relates to the technical field of smart city geographic information services. The method comprises the steps that the mesh dividing information and the time segmentation information of a target monitoring area are obtained; the effective coverage of precipitation observation satellites and the effective coverage of ground precipitation stations are obtained according to covering information of the precipitation observation satellites and covering information of the ground precipitation stations; a ground precipitation station layout limited candidate point set is obtained according to topographic information of the target monitoring area and standard covering information of the ground precipitation stations; a maximum continuous-time covering model is obtained; and a precipitation station layout optimization scheme is determined according to the maximum continuous-time covering model. The method and device are used for solving the technical problems that in the prior art, the ground precipitation stations and the precipitation observation satellites often exert effects independently, the influences of satellite covering on layout of the ground precipitation stations are not taken into account, and the requirements of cooperative observation of a hydrological sensor network and resource optimization configuration cannot be met.

The present invention proposes a multi-party collaborative consultation system for emergency public events based on an emergency map, including: a geographic information server, an initiator client, multiple participant clients and a collaborative server, and the geographic information server is used for establishing and publishing Geographic information service; the initiator client is used to create an emergency map according to the geographic information service, and is connected to the collaborative server through the .NETRemoting Http channel; multiple participant clients communicate with the initiator client through the collaborative server, Wherein, the initiator client and multiple participant clients share the same emergency map, draw it, and send it to the collaborative server, and then the collaborative server broadcasts it to the initiator client and multiple participant clients. According to the conference system of the present invention, the conference is carried out by sharing an emergency picture to ensure the consistency of information, so that the conference participants can reach a consensus well.

Techniques for generating cross-modality semantic classifiers and using those cross-modality semantic classifiers for ground level photo geo-location using digital elevation are provided. In one aspect, a method for generating cross-modality semantic classifiers is provided. The method includes the steps of: (a) using Geographic Information Service (GIS) data to label satellite images; (b) using the satellite images labeled with the GIS data as training data to generate semantic classifiers for a satellite modality; (c) using the GIS data to label Global Positioning System (GPS) tagged ground level photos; (d) using the GPS tagged ground level photos labeled with the GIS data as training data to generate semantic classifiers for a ground level photo modality, wherein the semantic classifiers for the satellite modality and the ground level photo modality are the cross-modality semantic classifiers.

The invention discloses a geographic information service metadata text multi-level multi-label classification method, which comprises the following steps: 1) obtaining a geographic information servicemetadata text set to perform text preprocessing, and dividing each data sample into text feature word combinations; 2) setting a primary classification directory, and generating a typical word list semantically associated with classification categories; 3) screening the text feature words according to the typical word list; 4) selecting ML-KNN as a base model for collaborative training; 5) establishing a topic prediction model ML-CSW as another base model for collaborative training; 6) designing a collaboration mechanism, matching a multi-label topic for the metadata text, and taking the multi-label topic as a primary coarse-grained topic classification result. According to the method, domain features and text semantics of the geographic information service metadata are considered, only asmall number of marked data samples are depended on, and the classification result is better in overall performance compared with a traditional multi-label classification method.

With increasing social and economic development and increasing awareness of people in environment protection, higher requirements for environmental protection are proposed. The traditional way fails to satisfy the requirements for continuous complex workflow, diverse working forms and massive working data. Providing an environmental geographic information service platform meeting the requirements is urgent. The study is mainly oriented to environmental competent departments of all levels, enterprise and public institutions and scientific research institutions to allow for development of the environmental geographic information service platform used for various environmental protections in environmental bureaus. Basic functions, such as object and pollution source management and monitoring information management, are realized for service sections of the environmental agencies by cloud computing, internet-of-things and GIS (geographic information system) technology, and a system of service information and support knowledge is formed with the auxiliary environmental protection basic information. According to the concept of basic architectures of cloud computing and internet-of-things and based on the platform design concept, a platform overall architecture is planed according to the concept of 'hierarchical design and module building'.

The invention relates to a power transmission project design review method assisted by a grid holographic digital map system, comprising the following steps: (1) a grid holographic digital map system, which includes a massive geographic information service distribution module, a general data service engine module, a three-dimensional engineering information construction module, a three-dimensional model and spatial data dynamic scheduling module, a multi-source thematic data superposition module, a simulation multimedia playing module and an engineering design review unit, is set; (2) project site environment simulation information completed by the three-dimensional engineering information construction module is acquired through the engineering design review unit; (3) the simulation multimedia playing module browses preliminary design of the grid project; (4) engineering hotspot information is viewed by location finding; (5) the multi-source thematic data superposition module displays design line constraint information; (6) the three-dimensional model and spatial data dynamic scheduling module simulates and displays the design line; and (7) information of line display area is labeled and areas of particular concern is recorded, making it easy to review images and topographical condition near a tower of particular concern.

The invention discloses a risk management and control system based on scene recognition driving. The risk management and control system comprises a data resource library, a patrol terminal system, a risk management system and an interface standard specification. The safety production risk grading management and control system is based on a data resource platform. Based on SOA-based architecture design, frontier technologies such as wireless communication, geographic information service, big data analysis and computer network security are fused, system data transmission is achieved through local area network (enterprise intranet) and 4G/WIFI network communication, two functional interfaces of mobile terminal application and platform service application are formed based on application support, a standard multi-level system is adopted, interfaces are strictly defined among all levels, and system seamless integration is achieved through overall design and deployment. The system can be applied to multi-platform equipment such as a mobile phone, a tablet personal computer and a computer; and the system can be applied to high-risk environments or places, can be used remotely through a public wide area network, can also be used through a local area network, collects dangerous point data through mobile inspection equipment, and uploads the dangerous point data to a database in time, sothat a data resource library can update dangerous information data in time, and an enterprise is helped to dynamically master safety production dynamic information anytime and anywhere. Meanwhile, therisk management system carries out early warning management according to the data of the data resource library, and predicts the risk accident trend by adopting artificial intelligence in combinationwith a data mining analysis method, thereby helping enterprises to make effective decisions. The system can also be applied to the field of fire protection, and help emergency departments to manage and control risks and respond timely.