897 results about "Urban environment" 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

An apparatus, method for detecting critical areas and a pedestrian detection apparatus using the same are provided. An application of the pedestrian detection system is provided to help limit critical urban environment to particular areas. Contrary to traditional pedestrian detection systems that localize every pedestrians appearing in front of the subject vehicle, the apparatus first finds critical areas from urban environment and performs a focused search of pedestrians. The environment is reconstructed using a standard laser scanner but the subsequent checking for the presence of pedestrians is performed by incorporating a vision system. The apparatus identifies pedestrians within substantially limited image areas and results in boosts of timing performance, since no evaluation of critical degrees is necessary until an actual pedestrian is informed to the driver or onboard computer.

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.

An apparatus, method for detecting critical areas and a pedestrian detection apparatus using the same are provided. An application of the pedestrian detection system is provided to help limit critical urban environment to particular areas. Contrary to traditional pedestrian detection systems that localize every pedestrians appearing in front of the subject vehicle, the apparatus first finds critical areas from urban environment and performs a focused search of pedestrians. The environment is reconstructed using a standard laser scanner but the subsequent checking for the presence of pedestrians is performed by incorporating a vision system. The apparatus identifies pedestrians within substantially limited image areas and results in boosts of timing performance, since no evaluation of critical degrees is necessary until an actual pedestrian is informed to the driver or onboard computer.

Systems for handling and / or dispensing hydrogen or a mixture of fuels containing hydrogen gas including refueling stations for hydrogen-powered vehicles. Pure hydrogen or various mixtures ratios of hydrogen and CNG may be dispensed. Hydrogen handling equipment may include a hydrogen generator, a pressurizing apparatus or compressor, pressure vessels, piping, valves, vent pipes, and / or a dispenser. Substantially vertical orientation of pressure vessels may reduce the amount of land required and facilitate installation in urban environments. Pressurization may take place before hydrogen generation to reduce the power required for pressurization. Safety features include enclosures and surrounding walls that lean away from the equipment. Any leaking hydrogen, fires, or explosions may be contained and / or directed upward, protecting human life and property. Systems may be shop assembled and certified.

The invention discloses an urban environment composition method for unmanned vehicles. Under the condition of being independent of external positioning sensors such as speedometers, GPS and inertial navigators, the trajectory tracking and environment map building of an unmanned vehicle are completed by just using few particles for 3D laser-point cloud data returned by a vehicle-mounted laser radar, thereby providing basis for the autonomous running of the unmanned ground vehicle in an unknown environment; and according to the invention, an ICP algorithm is applied to adjacent two frames of data so as to obtain a coarse estimation on the real position and posture of a vehicle, and then redundance is performed near the coarse estimation based on gaussian distribution. Although the coarse estimation is not the real position and posture of the vehicle, the coarse estimation is a high-probability area of the real position and posture of the vehicle, so that an effect of relatively accurate positioning and composition is achieved by using a small amount of particles in the process of subsequent redundance, thereby avoiding the fitting of a vehicle trajectory by using a large amount of particles in a traditional method, improving the efficiency of the algorithm, and effectively restraining a phenomenon of particle degeneracy caused by bad particle estimation.

An infrastructure of Bluetooth and / or Wi-Fi enabled RF tags or beacons deployed within a structure, an urban environment, a residence, buildings, real estate property, in a parking area, etc. The deployed beacons can be integrated with sensors to initiate or trigger an application. The infrastructure being used to recognize a presence of a user within the area to trigger activities, initiate Location Based Services (LBS), provide navigation, provide mapping, convey of information, initiate a link to a server or software, provide support during an emergency, provide assist to E-911 services, trigger an automation function, provide real estate information, and the like.

The system method described herein could guide people around urban environments indoor and outdoor, provide accurate update and real time information to the user navigation system and or to his cellular phone, We have focused on the task of generate and update in real time automatically the waypoint along the route, The information will be received directly from the waypoints in the user location and will display on the existing cellular phone as Bluetooth application and interface to existing GPS navigation system.

An autonomous transport system is disclosed, formed by four main subsystems: a channel subsystem; a vehicle subsystem; a wheel guide subsystem and central control station subsystem. The system is designed for the transportation of people or goods, to be used in tall buildings and in small and large scale urban environments. It comprises unitary vehicles that may move in different directions: horizontal, steeply sloped and also vertical tracks, thanks to novel traction wheel assemblies that roll on carefully designed wheel tracks. The system's cabin maintains the horizontal level / position regardless of the changes of track direction or slanting thanks to pendulum based automatic level control and may rotate up to 180° under normal conditions and even a full 360° turn respect to the wheel assembly in space restricted positions. The cabin is mounted on a cantilever, thereby displacing its center of gravity respect of the wheel guides. Thus, a lever action is established, which presses the wheels against the wheel tracks and therefore enough frictional resistance is obtained so as to avoid wheel slippage on the wheel tracks. The vehicles are moved by non-polluting, electric drives that move and stop them with high energy savings. The vehicle runways are designed taking in account safety features against fire hazards. Several vehicles may be used at the same time and on the same track and may run individually or in groups, conforming a train. The system allows for vehicles to be parked in bypassed positions or else they may be disengaged from the convoy to be used individually.

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 and or to the cellular 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 and without the need for central computer system or internet connections. The parking information will be received directly from RF sensors and will display as a floating overlay on the existing navigation system and or cellular phone as Bluetooth application.

A method, apparatus, system, and article of manufacture provide object descriptors for objects in point cloud data for an urban environment by segmenting the point cloud data. Point cloud data for an urban environment is obtained using a ground-based laser scanner. Terrain points are filtered out from the point cloud data using ground filtering. The point cloud data is then segmented into two or more blocks. Objects that lie on neighboring adjacent blocks are combined. Object descriptors for the combined objects are then provided (e.g., to the user or a program used by the user).

A “smart parking” system and method for an urban environment based on a dynamic resource allocation approach. The system assigns and reserves an optimal resource (parking space) for a discrete user based on the user's objective function that combines proximity to destination with parking cost, while also ensuring that the overall parking capacity is efficiently utilized. The solution of each Mixed Integer Linear Program (MILP) is an optimal allocation based on current state information and subject to random events such as new user requests or parking spaces becoming available.

The invention discloses a nano-composite environment-friendly water permeable brick and a production method thereof. The nano-composite environment-friendly water permeable brick comprises a concrete bottom layer and a mortar surface layer arranged on the concrete bottom layer, wherein the concrete bottom layer and the mortar surface layer are compounded to form an integrated structure; the concrete bottom layer is prepared from the following raw materials in parts by weight: 20-40 parts of cement, 10-20 parts of water, 5-15 parts of fly ash, 50-65 parts of recycled aggregate, 50-65 parts of natural coarse aggregate, 65-85 parts of sand and 0.05-0.2 part of water-reducing agent; and the mortar surface layer is prepared from the following raw materials in parts by weight: 70-100 parts of cement, 5-20 parts of nano-TiO2, 30-60 parts of water, 200-400 parts of sand and 0.1-1.0 part of water-reducing agent. The nano-composite environment-friendly water permeable brick disclosed by the invention is integrally formed and has the advantages of high compressive strength, high flexural strength, good water permeability and good water retention, and a ground surface laid by the nano-composite environment-friendly water permeable bricks can timely dredge and drain rainwater, is conductive to growth of surrounding vegetation and can effectively supplement groundwater, reduce the pressure of a municipal drainage system and reduce the influence of surface gathered water on the traffic; and the nano-composite environment-friendly water permeable brick has a photocatalytic self-cleaning function and can decompose and remove organic stains on the surface of the brick and beautify the urban environment.

A method for presenting a perspective view of a real urban environment, augmented with associated geo-coded content, and presented on a display of a terminal device. The method comprises the steps of: connecting the terminal device to a server via a network; communicating user identification, user present-position information and at least one user command, from the terminal device to the server; processing a high-fidelity, large-scale, three-dimensional (3D) model of an urban environment, and associated geo-coded content by the server; communicating the 3D model and associated geo-coded content from said server to said terminal device, and processing said data layers and said associated geo-coded content, in the terminal device to form a perspective view of the real urban environment augmented with the associated geo-coded content. The 3D model comprises a data layer of 3D building models; a data layer of terrain skin model; and a data layer of 3D street-level-culture models. The processed data layers and the associated geo-coded content correspond to the user present-position, the user identification information, and the user command.

A method for generating geographic maps for large-range complex urban environment includes extracting two-dimensional roads and two-dimensional building contour information, generating a two-dimensional geographic map; a monocular PTZ camera, under the guidance of the two-dimensional geographic map, conducting video acquisition and obtaining video images; extracting key frames from the video images, extracting line segment characteristics of matching adjacent key frames to obtain line segment correspondence, positioning and establishing an environment three-dimensional geographic model based on a mobile robot of matching line characteristics; matching a three dimensional geographic model and the two-dimensional geographic map, determining the corresponding relation between the two, and generating an enhanced city geographic map; and optimizing the enhanced city geographic map based on bundle adjustment algorithm with geometrical constraints. Compared with the prior art, the method is wide in application scope, high in robustness and precision, small in storage space needed, and low in cost.

The invention discloses a vehicle positioning method. The method includes the following steps of obtaining initial first position information when a positioned vehicle enters a road, obtaining a lane change state through a visual system in the driving process, updating the first position information according to the lane change state, sending the first position information to a road side unit by the positioned vehicle through vehicle-road coordinative communication, obtaining second position information through signal analysis by the road side unit, fusing the first position information, the second position information and prestored road mathematic information through the road side unit, obtaining vehicle position information of the positioned vehicle, feeding final position information back to the positioned vehicle through real-time communication by the road side unit, and obtaining the specific position of the vehicle in a map. The vehicle positioning method is not limited by geography, accurate positioning can be completed in the urban environment with unsatisfactory GPS / DGPS accuracy, and the requirements of the intelligent vehicle for collision avoidance, autonomous driving and other application are met.

An autonomous transport system is disclosed, formed by four main subsystems: a channel subsystem; a vehicle subsystem; a wheel guide subsystem and central control station subsystem. The system is designed for the transportation of people or goods, to be used in tall buildings and in small and large scale urban environments. It comprises unitary vehicles that may move in different directions: horizontal, steeply sloped and also vertical tracks, thanks to novel traction wheel assemblies that roll on carefully designed wheel tracks. The system's cabin maintains the horizontal level / position regardless of the changes of track direction or slanting thanks to pendulum based automatic level control and may rotate up to 180° under normal conditions and even a full 360° turn respect to the wheel assembly in space restricted positions. The cabin is mounted on a cantilever, thereby displacing its center of gravity respect of the wheel guides. Thus, a lever action is established, which presses the wheels against the wheel tracks and therefore enough frictional resistance is obtained so as to avoid wheel slippage on the wheel tracks. The vehicles are moved by non-polluting, electric drives that move and stop them with high energy savings. The vehicle runways are designed taking in account safety features against fire hazards. Several vehicles may be used at the same time and on the same track and may run individually or in groups, conforming a train. The system allows for vehicles to be parked in bypassed positions or else they may be disengaged from the convoy to be used individually.

The invention provides a sorting method of vehicle-mounted laser scanning point cloud data of urban ground objects. The method mainly comprises two steps as follows: original vehicle-mounted laser scanning point cloud data are subjected to road surface filtering in combination of vehicle tracking data, and point cloud data of a road surface are separated from point cloud data of other ground objects; and the obtained point cloud data of other ground objects are further identified to be different ground object types. In the road surface filtering algorithm, the vehicle tracking data are combined, and a histogram statistic and analytical method is introduced, so that the self-adaption degree, the automation degree and the accuracy of the filtering algorithm of the road surface in an urban environment are improved greatly; and in the sorting algorithm of other ground objects, a point cloud feature image sorting method based on the maximum elevation value is improved, mistakenly sorted point cloud data are corrected with a cellular automaton technology, and a new thought and method are provided for the sorting algorithms of vehicle-mounted laser scanning point cloud data.

A data packet greedy-algorithm forwarding method for vehicle-mounted Ad hoc network fitting urban environment comprises following steps: (1) modeling urban road environment as undirected graph possessing weight, (2) dynamically selecting and updating fork in data packet forwarding path, (3) each node maintains a neighbor list and predicating and maintaining neighbor list, (4) updating position information of target node,(5) forwarding data packet based on greedy-algorithm forwarding policy. The inventive method fully utilizes characteristic of vehicle-mounted Ad Hoc network node, excels present algorithm in data packet delivery rate, time delay, average hop number and total data quantity of physical layer; the operation step is simple and easy, computation is not complex, demand for real time transmission is satisfied.

The invention relates to a sand table, in particular to an electronic sand table and method. An electronic sand table system is strong in stereoscopic impression, visual in image, capable of simulating various landforms and urban environments vividly. The electronic sand table system comprises a scene establishment module (1), a calculation module (2), a control module (3) and a demonstration module (4). The demonstration module (4) comprises a display matrix (401) composed of a plurality of columnar display units (4011). The top plane and each side face of each columnar display unit (4011) are display screens. Through ascending and descending of the columnar display units, simulation of the landforms and simulation the shapes of ground objects are achieved. Through the display screens of the columnar display units (4011), colors and textures of the landforms and the ground objects are simulated. The electronic sand table system is realistic in effect, strong in stereoscopic impression, capable of simultaneously describing the shape and the texture of each three-dimension scene in detail, flexible in operation, capable of enabling a sand table design scheme to be adjusted dynamically and achieving real-time and synchronous display, convenient to update, and good in expandability.

A communications system that uses electromagnetic waves. The communications system preferably operates in the millimeter-wave frequencies, and provides relatively high signal restoration and isolation. The communications system can use polarization diversity to increase the capacity of a channel. Isolation and restoration features in the transceivers eliminate or reduce the effects of precipitation and / or reflection and diffraction from objects, and thus is well-suited for an urban environment.The transceiver will select the proper antenna and signal path for optimal information throughput as the conditions in the propagation medium of the network vary.

The invention relates to a process for producing organic fertilizers, in particular to a process for producing composts by employing the method of compost fermentation, wherein the process comprises: selecting filthy mud as main fermenting raw materials, adding a conditioner in the filthy mud to adjust the carbon nitrogen ratio between 15 and 30, then adding catalytic bacteria, finally performing compost fermentation, wherein the conditioner is capable of employing castoffs as animal wastes, sawdust, wooden meals, traditional Chinese medicine dregs, straws, leave and the like and the castoffs have rich organic contents. The nutrition composition of organic base material which are fermented is more reasonable via controlling carbon nitrogen ratio in the invention, and the invention uses filthy mud which urgently needs to be handled to replace the conventional night soils and straws to be main raw materials of the composts, changes waste into valuable, and has certain effect for improving urban environment.

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.

The invention discloses an integrated dispatch stowage system system, which manages and dispatches freight vehicles by utilizing storage stations built on a highway and a computer network information platform and distributes goods at the storage station on the highway directly. The system comprises vehicle-mounted terminals arranged on the freight vehicles, a plurality of goods storage stations built on the highway and an information management device, wherein computer terminals of the freight storage stations send information of the goods needing to be carried to the information management device; and the information management device carries out wireless communication with the vehicle-mounted terminals to know whether the freight vehicles are in no load, carries out matching with the information of the carried goods, and then sends the distribution loading information to the vehicle-mounted terminals so as to carry out dispatch of the freight vehicles. The system not only realizes fast distribution and transportation, effectively reduces empty-loaded rate of transport vehicles and reduces the cost, but also avoids large transport vehicles from entering urban distribution, and reduces the pollution of urban traffic pressure and automobile exhaust on the urban environment.

The invention provides a pipe-jacking construction method for small-diameter pipes. The pipe-jacking construction method includes the steps of surveying and paying off, working well and receiving well manufacturing, pipe-jacking device mounting, pilot drilling, reaming, pipe pulling, other pipe construction in sequence, pipe-jacking device dismounting, pipe head handling and inspection well and cable channel construction. By the pipe-jacking construction method, excavation volume is low, slurry discharging is less, roads are not destroyed, and comprehensive cost is low; construction can be performed all through the year, construction speed is high, project circle is short, construction of an overall design project can be quickened, and working efficiency can be improved; traffic interference is minimized, and normal conditions of traffic in a construction site are guaranteed; environmental pollution like noises and dust cannot be generated, urban environment protection and stability, optimal design of the total planning and engineering construction of the urban construction can be benefited, and urban modern planning programming and construction level can be beneficially improved.

The invention discloses an automated queue assistance system for a low-speed operating-and-stopping condition of an automobile in an urban environment and a control method thereof. A control system comprises a sensor, a controller and an actuator. The sensor comprises a millimeter-wave radar and an on-vehicle DSRC wireless communication receiving module. The actuator comprises the components of an engine power control unit, an ESC active brake unit, an electronic parking braking unit, an automatic transmission and an engine idle stop-start unit; wherein the engine power control unit, the ESC active brake unit, the electronic parking braking unit, the automatic transmission and the engine idle stop-start unit are based on on-vehice CAN bus communication. According to the control method, by means of automobile-automobile communication, automobile-road communication and collaborative control of the actuators, automatic automobile following is realized in a parking condition, a starting condition and a braking condition, thereby replacing throttle operation and braking operation of a driver. The automated queue assistance system has advantages of realizing automatic automobile following of a driver in the low-speed operating-and-stopping condition of the city, reducing driving fatigue, combining Internet-of-vehicles technology and collaborative control of a plurality of executing mechanisms, and effectively improving safety, fuel economy and sitting comfort in the automobile following process.

A modified synthetic polymer filament and multifilament yarn of polyamide or polyester filament containing a carbon black polymer additive, and fabrics from these yarns, are disclosed. These melt spun filaments are especially well-suited for use in garments and equipment where a modified Near Infrared Reflectance (NIR) signature is desired. The yarn and fabrics made from this yarn may be advantageously dyed or printed to provide a camouflage fabric for use in desert sand dominated environments, urban environments and multi-terrain environments.