1077 results about "Urban area" patented technology

The navigation system method described herein could guide people around urban environments, detect guide and navigate them to destinations, add-on to the portable phone. We have focused on the task of detecting and navigating even in situations in which Global Positioning Systems (GPS) cannot provide this information, such as when the person is indoors or in crowded urban areas where there is no line of site to the GPS satellites. The information will be received directly from RF sensors and will display on the existing cellular phone as Bluetooth application

The parking detection system method described herein could guide people around urban environments, detect guide and navigate them to empty parking spaces, add-on to the car-based navigation systems that are popular today and or to the portable phone. We have focused on the task of detecting and navigating even in situations in which Global Positioning Systems (GPS) cannot provide this information, such as when the person is indoors or in crowded urban areas where there is no line of site to the GPS satellites. The parking information will be received directly from RF sensors and will display as a floating overlay on the existing cellular phone as Bluetooth application making the cellular phone a parking detector.

Location information provided by multiple positioning systems is combined to provide an estimated user location. In performing the combination, location information provided by the positioning system that is currently deemed more reliable is provided greater weight than the location information provided from the other positioning system(s). Alternatively, one of multiple positioning systems is selected to calculate an estimated user location. The selected system is the one that is currently deemed more reliable based on some indicia of reliability. Using either approach, an accurate estimate of a user's location can be provided both in rural areas or other sparsely-populated areas as well as in urban areas or other areas prone to high multipath effects.

An improved system and method for determining a position of a mobile station in a mobile telecommunications network is disclosed. The system includes a database having geographical information pertaining to the service area of the telecommunications network, including whether service areas therein are characterized as urban areas, suburban areas or "badurban" areas in which radio communication is especially limited. The system further includes a mobile location center (MLC) which, among other things, calculates the number of access signal bursts which are required for transmission by the mobile station to be located. The access burst number is calculated based upon the geographical information pertaining to the service areas stored in the database and upon a requested position determination accuracy. By measuring the time of arrival delay of the burst signal transmission received by two or more base transceiver stations, the MLC computes the position of the mobile station.

A method and system for determining and verifying a location of a network device in emergency situations with emergency messages including legacy 911, E911 and text-to-911 messages from an unmanned aerial vehicle (UAV) or drone. The method and system provide a current physical geographic location for mobile devices in urban areas (e.g., spot, chair, desk on in a room on a building floor, campus, enterprise, city, state, region, country, continent, etc.) and rural areas in an emergency situation such as an accident, fire, terrorist attack, military incident, weather, flood event, etc. and forwarding the current physical geographic location to a legacy 911 network, a Emergency Services IP networks (ESInet) or text-to-911 Short Message Services (SMS) networks to alert emergency responders.

Watershed hydrology analysis and management process and system with a network of weather stations and artificial drainage systems with artificial and natural reservoir management through locks and pumping stations. It evaluates potential hydrologic risk in each area and analyses the possible consequences of future precipitations using simulations. To make the simulation, it calculates hydrographs for each sub-basin, streams and rivers in the basin. It simulates the behavior of the basin under different scenarios corresponding to different types of management of the operation of locks and/or pumps and compares its results in terms of loss of flooded area, economic loss in each area, loss for flooding of urban areas, etc. Optimization of the simulation through artificial intelligence (AI, meta-heuristic algorithms, neural networks, etc.) allows it to act as a search engine to find better solutions and the best configuration of resource management that allows minimizing the socio-economic impact on each basin.

The invention discloses a method for forecasting the traffic flow in the urban area based on depth learning. This method can forecast the traffic flow in each region of the city by extracting the high-dimensional space-time characteristics of traffic flow changes, which provides a new idea for urban traffic flow forecasting. Firstly, according to data of LPR equipment, the historical flow of each time period of the urban area is calculated; then the traffic flow forecasting model is designed by ConvLSTM and CNN, and the flow data of the critical time period which affects the forecast period is extracted as the input training model; and finally, the trained model is used to forecast the traffic flow of the urban area.

Some embodiments of the invention provide an implementation for a multi-hop wireless backhaul network. These embodiments can advantageously be deployed in dense urban areas and/or co-located with wireless access nodes, such as base-stations of a cellular wireless communication system. Preferably wireless links between constituent network nodes are set-up hierarchically. A basic result of this is that peer-to-peer (child-to-child) communication is generally prohibited and circuits are forced to conform to a topology. The multi-hop wireless backhaul network may be used to carry delay sensitive, high-density last mile circuit traffic over Non-Line-Of-Sight (NLOS) broadband radio links. Moreover, some embodiments of the invention provide a method of path-healing for re-routing of circuit traffic from circuits that have experienced catastrophic failures.

The “Mail Receptacle with Delivery Indicator” is a device which will allow the user of the unit to visually detect the presence of mail without opening the unit, or even approaching said unit directly. There are several possible embodiments of said device, including but not limited to a unit which can be placed at the roadside in rural areas for delivery of mail, a unit which can be mounted on the outside wall of a house for delivery of mail in urban areas, a smaller unit, possibly assembled in groups, which could be used for multiple dwellings such as apartment complexes, a special unit to be placed inside a wall locker in a school, factory, or any other location in which wall lockers are used, or a decorative unit which could be placed on a desk or table to be used for personal or interoffice communication. The unit may also include a recording means which would allow a verbal message for the user of the mailbox to be recorded and played back at the convenience of the user. The unit may also include a security mechanism which prevents unauthorized persons from having access to mail within the unit. The unit may also include a protected area for displaying the name and/or house number of the user, providing easier identification of the proper unit for someone delivering mail.

A decentralized asynchronous wireless communication system is disclosed for providing the remote location retrieval of voice and data communication and allowing for flexibility of communication paths for local communication or for communication to external networks. The system makes use of external data communications modules that may communicate in a local mode, an extended mode, or a distant mode. The external data communications modules may also provide a communication path to a Public Switch Telephone Network and other communication medium. The entire system is monitored by a network of personal computers comprising an Artificial Intelligence (AI) Network to manage any catastrophic system failure. The entire system is suitable for operation in rural areas having a low population density and urban areas where hours of peak call loading could otherwise be detrimental to call completions.

The invention provides a method and apparatus for increasing the accuracy for locating a cellular mobile station in an urban area. The method is performed as follows: at first, if there is a request for location, the approximate position of a mobile station is determined by sector information, the time of arrival, and a time difference of arrival; then, the transmission of a locating pilot frequency for an adjacent assistant locating apparatus is initiated, and in the case of the transmission of the assistant locating pilot frequency, the time difference of arrival is measured once again; at the end of the measurement of the mobile station, the locating transmission of the assistant locating apparatus is closed; the assistant locating apparatus is requested to report the result of NLOS identification; with the measurement of the assistant locating pilot frequency by the mobile station and the result of NLOS identification, the position of the mobile station is estimated to acquire a more accurate position of the mobile station.

The invention provides a four-wheel driven hybrid vehicle driving system capable of meeting the needs of a motor vehicle for torque during running in an urban area and reducing oil consumption and tail gas emission and a driving management method thereof. The driving system comprises an engine driving front wheels, an ISG motor coaxially arranged with the engine and a driving motor driving rear wheels, wherein the engine is connected with an engine management unit; the ISG motor is connected with an ISG motor control unit; the driving motor is connected with the motor control unit; and the ISG motor and the driving motor are connected with a high voltage battery through an inversion unit. The key point is that the driving system also comprises a vehicle control unit and a high voltage management unit connected with the high voltage battery. The vehicle control unit, the high voltage management unit, the engine management unit, the ISG motor control unit and the motor control unit are connected through CAN buses; and the vehicle control unit is also connected with an accelerator pedal position sensor and a vehicle speed sensor.

The invention relates to a high-precision radio positioning method and a system thereof based on multidiameter scattering information, which can be applied to various positioning environments, particularly the rich multidiameter conditions with an intense scattering environment and many barriers near a mobile terminal that needs to be positioned, such as urban areas, hilly areas and the like. The method is a high-precision practical positioning technology and comprises the following steps: firstly, a reasonable multidiameter scattering radio positioning model which is transmitted by non-line-of-sight electric waves is established according to the actual communication environment; then the scattering information is estimated by the positioning data of the multipacket and multidiameter scattering information detected by a plurality of sensors; then a group of analog sensors are reconfigured by the scattering information; and finally, at the time of final positioning, a new judgment rule and a new algorithm obtained by revision and used for the multidiameter scattering information are put forward, so as to realize precise target positioning. The high-precision radio positioning method and the system thereof can effectively inhibit non-line-of-sight communication errors, and have the advantages of low cost, low energy consumption and very high positioning precision.

The invention relates to a method and a system for estimating population density in urban built-up areas coordinated by spatial big data. The method comprises the following steps: obtaining a buildingrange based on an object-oriented classification method by utilizing high-resolution optical remote sensing data; dividing urban blocks through a spatial topology algorithm by utilizing spatial big data of an urban fine road network, and dividing the urban blocks into residential areas and non-residential areas by combination with spatial big data of points of interest; obtaining building heightby utilizing remote sensing optical three-dimensional imaging data; constructing a population density estimation model by utilizing a multiple regression analysis method according to the building height and the building range and by combination with population statistical data; and inputting the building range and the building height as input variables into the population density estimation model,performing calculation to obtain population density, and then, assigning the population density to regular grid space corresponding to urban built-up areas by utilizing a spatial statistical analysismethod. The method and the system can precisely and accurately realize estimation of the population density in the built-up urban areas, are more suitable for requirements of urban planning, disasterprevention and reduction and business decision for fine population data, and are beneficial to further popularization and application.

To provide a stereo image processing device enabling sufficiently accurate three-dimensional data to be obtained from satellite stereo images and aerial stereo images automatically with no involvement of operators and for complicated objects such as buildings in urban areas. A satellite image storing unit stores satellite image data. A stereo processing unit subjects satellite image data obtained from the satellite image storing unit to stereo matching processing to generate three-dimensional data. A DEM data automatic correcting unit uses information of external shape of buildings and the like obtained from map data in a map data storing unit to correct automatically erroneous data such as noises and losses in the three-dimensional data obtained with the stereo processing unit. The map data storing unit provides map data such as external shapes of buildings and the like to the DEM data automatically correcting unit.

The invention, in some embodiments, relates to the field of global navigation satellite systems, and more particularly to the field of methods and devices for improving accuracy of position determination by receivers of global navigation satellite systems. Some embodiments of the invention relate to methods for generating a three-dimensional (3-D) representation of an urban area by a receiver of a global navigation satellite system using blocked lines of sight to satellites of the system. Additional embodiments of the invention relate to methods for transmitting a three-dimensional (3-D) representation of an urban area by a receiver of a global navigation satellite system for improving calculation of location by the global navigation satellite system receiver.

The invention provides an urban area and indoor high-precision visual positioning system and method. The image information of a surrounding environment is acquired based on a visual sensor to realize high-precision urban area and indoor positioning. The method comprises the steps that the distinguishing feature information of an image is calculated and extracted after the visual sensor captures the scene image information; according to the distinguishing feature information, similarity degree recognition and matching are carried out in the feature information base of a digital three-dimensional model; according to matching coordinate information recorded in an image feature matching process, a geometrical mapping relation from a three-dimensional scene to a two-dimensional image is restored, and a camera intersection model from a two-dimensional image coordinate to a three-dimensional space coordinate is established to determine the three-dimensional position and attitude information of the visual sensor and a dynamic user; multi-source image information captured by the visual sensor is received; a digital three-dimensional model corresponding to a real scene is reconstructed or updated; and the feature information base is updated. According to the invention, robust and sustainable positioning ability is provided when the surrounding environment changes.

The invention relates to a regulating method of a center heating system in an urban area. The method includes the steps: (1) fitting an outdoor temperature with a regression curve of a heating index, and correcting the regression curve according to practical heating situations, (2) by predicting and calculating heat load needed by a whole heat-supply network, providing guidance for a heat source, (3) calculating and setting a secondary water supply/return temperature according to a primary water supply/return temperature of heat supply output, heat-supply network averaging control is carried out on heat exchange stations according to different distances between the heat exchange stations and the heat source, and avoiding the phenomenon that users at the near end are warm and users at the far end are cold, and (4) regulating the secondary water supply/return temperature in real time by controlling the regulating range of a valve. Therefore, heat supply quality is improved, energy consumption is saved, heat energy waste is reduced, the whole system can achieve the aim of supplying heat according to needs, and the fact that the heat supply effect of users is uniform is guaranteed.

A method for inversion of the ground feature high elevation and the number of land subsidence through high resolution InSAR timing sequence analysis includes the first step of high resolution SAR data selection, the second step of initial elevation phase estimation, the third step of selection of InSAR timing sequences, analysis of an interference image pair data set and extraction of coherent target candidate points, the fourth step of elevation phase correction and linear deformation component estimation, and the fifth step of deformation sequence estimation of coherent targets. According to the method, the defect that no high resolution DEM is available for removal of high-rise building additional phases in urban area high resolution InSAR deformation monitoring data processing can be overcome, the additional phases and deformation phases of urban high-rise buildings in the high resolution InSAR are effectively separated, and therefore monitoring precision of the high resolution InSAR in urban area land subsidence is greatly improved.

The invention relates to a system for integrating, controlling and simulating signals used in multi-agent region intersection, performs the simulation modeling of the integrated control strategy facing the region intersection by utilizing the multi-agent (Multi-agent) technology, and establishes an intelligent controlling and simulating system suitable for the traffic of the urban area controlled by the compound traffic flow. The system adopts a multi-layer architecture, each layer of architecture represents different agents, so that the control strategy embodies the traffic fluctuation situation in a real-time manner, the intelligent control is truly achieved, a qualitative and quantitative comprehensive evaluation index system, an evaluation model and an evaluation method for controlling the traffic of the urban area are established, the traffic signal control and the traffic inductive coordination treatment are adopted, and the integration of the intelligence traffic control and the induction is realized.

The invention relates to the technical field of synthetic aperture radar interferometry, and specifically relates to a PSInSAR estimation method applicable to complex urban area infrastructure in windy and rainy conditions. The method includes following steps: performing data preprocessing on InSAR data; establishing a Delaunay triangulation network and an adaptive encryption network; estimating an arc segment relative parameter through a robust estimator; performing Tikhonov regularization adjustment operation; establishing a local star network; recognizing single PS points and layover PS points; calculating the single PS points in remaining pixels through the robust estimator, and detecting the layover PS points through a compressed sensing algorithm; and outputting heights and deformation results of the single PS points and the layover PS points. According to the method, combined calculation of the single PS points and the layover PS points is realized through mixed network establishment without removing the atmosphere in a global manner, a temperature non-linear deformation model is introduced, the fitting degree of the time sequence phase is improved, accurate estimation of the PS points is realized by employing the robust estimator, and the layover PS points of the complex urban environment are extracted by employing super-resolution MD-TomoSAR imaging.