454 results about "Types of road" patented technology

A method for displaying a map on a mobile client device. The method includes storing map data on a server, the map data including road data with respect to roads of multiple different road types. The server determines a route from a starting point to a destination within an area covered by the map data, the route including one or more route segments. The server defines a corridor map including the route segments and the roads of the different road types that are within different, respective distances, determined by the road types, of the route segments. The server downloads the road data with respect to the route segments and the roads of the different road types included in the corridor map to the client device. The client device, using the downloaded road data, renders one or more images, each image comprising at least a respective portion of the corridor map.

A navigation apparatus includes map data, a control unit that searches for a route over which a vehicle is to be directed, using the map data, and a display unit that displays an arrow indicating a right turn or a left turn of the vehicle when the vehicle approaches a guide point where the vehicle is directed to turn right or left. The control unit determines the type of a first road which is connected to the guide point and which will be entered after the vehicle turns right or left at the guide point, using the map data. If the first road is a first type of road, the control unit causes the display unit to display the arrow in a first color. If the first road is a second type of road, the control unit causes the display unit to display the arrow in a second color that differs from the first color.

A road furniture item or another type of road object is detected by at least one sensor. An associated geographic position associated with the road furniture item or road object is determined. After a predetermined time is reached, the geographic position is compared to a local database. A remote database is updated after the predetermined time is reached and according to the comparison with the local database. In some examples, the data indicative of the road furniture item or the road object is deleted based on a confidence level in the local database.

The invention provides an intelligent networked transportation system for an overall road network. The intelligent networked transportation system comprises a sensing, communication and control modulefor managing the entire transportation system connected by road segments and nodes. When intelligent networked vehicles travel in a transportation network, they will route different types of road facilities such as basic road sections, highways, main roads, traffic bottleneck sections, interlaced and confluence sections, intersections, the start or last one kilometer if the road, parking areas, bridges, tunnels, multi-modal hubs, etc. These different sections and nodes in a transportation network have significant differences in geometric design and facility characteristics. The invention provides a specific intelligent networked system subsystem design to adapt to different types of road characteristics and achieve complete door-to-door travel.

The invention discloses a vehicle forward collision warning method based on a vehicle networking technology. The method includes the following steps: (1) collecting real-time data through a vehicle-mounted terminal device; (2) adjusting a dynamic threshold value: adjusting the value of a dynamic regulation factor of vehicles according to vehicle disposition information, driver information, sensor information, real-time positions of the vehicles and road types; (3) calculating the theoretical safe distance S(safe) between two vehicles, wherein V(sv) is a vehicle speed acquired through a CAN bus, T(r) is the dynamic regulation factor, V(rel) is the absolute value of the relative speed of the two vehicles, TTC is a time from the current time to a collision time, and the time can be configured through the vehicle-mounted terminal device so as to reflect the warning sensitivity level of the system; (4) carrying out judgment and warning: comparing the theoretical safe distance with a real vehicle distance acquired by a distance measuring sensor, and sending out warning information if the real vehicle distance is smaller than the theoretical safe distance. The method guarantees objectivity and accuracy of a calculation model to the maximum and avoids rear-end collisions most accurately.

The present invention relates to a road traffic sign identification method with multiple-camera integration based on the DS evidence theory, belonging to the technical field of image processing. According to the method, five types of road traffic indication signs which are going straight, turning left, turning right, going straight and turning left, and going straight and turning right are mainly identified, and the method is divided into two parts which are training and testing. In a training stage, the direction gradient histogram feature of a training sample is extracted, thus a sample characteristic and a category label are introduced into a support vector machine to carry out classification training. In a testing stage, an interested region is obtained through image pre-processing, the direction gradient histogram feature of the interested region is extracted and is sent into a classifier to carry out classification, according to the credibility of the sign to be identified obtained by the classifier belonging to each category, and combined with a DS evidence theory data integration method and a maximum credibility decision rule, a final sign identification result is determined. According to the invention, a multiple-camera data integration method based on the DS evidence theory is employed, the information of multiple cameras are integrated to obtain a final identification result, and the road traffic signs can be stably and efficiently identified.

There is provided a method and a device for accurately estimating traffic information of a link having no traffic information even if different types of roads are mixed. The device finds a parameter characterizing a damping curve of a quantity of change of relative speed based on stored traffic information for links on a city center side on a minimum-time cost route connecting the city center and suburbs, finds a quantity of change of relative speed of the link having no observed traffic information and estimates its traffic information based on the damping curve. The device also calculates a ratio of quantities of change of relative speed of two links whose road types change as a speed change similarity ratio and estimates traffic information of the link of a second road type from known traffic information of the link of a first road type by using that ratio.

A control system for energy saving intelligent illumination is composed of computer of the control centre, radio communication system, remote executing terminal and road lamp as well as five parts ofcontrol managing centre of road lamp system, radio communication system, remote intelligent executing terminal, carrier wave communication of spread spectrum power and front end controller of energy savint type of road lamp, of which the control managing centre of road lamp system will send the control signal to some remote intelligent executing in controllable area through the radio communication system and mean while receive the reporting signal of various state from the remote intelligent executing terminal. The present invention can execute the control of turning on-off and low power operation on any illuminating light source in the city and carryout the operating state detection with the function of state display.

System and method for vehicle drive cycle determination and energy management is provided. Based on a number of inputs, the system can determine the type of road that the vehicle is likely to drive on as well as the level of traffic congestion that the vehicle is likely to experience. Using these determinations, setpoints for various degrees of freedom, such as engine speed and battery power, can be set to reduce energy usage in the vehicle.

The disclosed system includes a first unit including at least one sensor. The first unit senses driving situations (characteristics) of a vehicle through the at least one sensor. Furthermore a second unit is configured to receive location-based information about the vehicle, and a control unit which includes an operation statistic unit calculates an acceptable range to be output by the first unit on a particular type of road based on the information detected by the sensing unit and the information received by the location second unit. The control unit also includes an abnormal driving determination unit which compares values sensed by the first unit with values calculated by the operation statistic unit to determine whether or not the vehicle is being driven in an abnormal state.

The invention relates to a vehicle control device comprising: - means (10, 20, 30) for generating various control modes dependent on parameters concerned with the way in which the vehicle is moving such as, rotational speed of the wheels, yaw rate, lateral acceleration and longitudinal acceleration, pressure on the brake controls exerted by the driver, and a vehicle life situation mode chosen by the driver from various preestablished life situations corresponding to different types of road and terrain and different vehicle rolling conditions, - estimating means for estimating the vehicle lifesituation, the device being configured to determine an optimum control mode from among the various control modes that can be generated by the device as a function of the estimated vehicle life situation and the life situation mode chosen by the driver.

The invention provides a navigation system and a navigation system voice prompt method thereof. The navigation system comprises a navigation module, a user interface control module and a map data management module; wherein, the navigation module comprises a navigation control module, a self-position detection module, a road type judgment module and a voice prompt module; wherein, the road type judgment module receives vehicle positioning information from the self-position detection module, obtains map data from the map data management module and judges the type of the road in which the vehicle is located; the voice prompt module selects different languages to prompt distance according to different road types and carries out voice prompt when the value of the specific position of the driving distance of the vehicle is less than the corresponding voice prompt distance threshold value of the current road type. By selecting different voice to remind distance threshold value according to the type of the located road of the user, the navigation system gives the user sufficient time to make corresponding preparations after hearing the voice prompt without burdening the system and affecting the function of the navigation system.

Apparatuses, methods and programs store a plurality of target types, each target type having recognition attribute information indicating the likelihood that the target type will be recognized based on a type of road or a type of area. The apparatuses, methods and programs acquire vehicle position information indicating a current position of a vehicle, acquire image information in the vicinity of the vehicle, and acquire road attribute information about a road on which the vehicle is traveling, the road attribute information acquired based on the vehicle position information. The apparatuses, methods and programs determine a target type defining a target for image recognition within the image information, the target type being determined based on the acquired road attribute information and the stored recognition attribute information, and perform image recognition of a target feature included in the image information, the target feature being of the determined target type.

The invention discloses a subjective assessment and information interaction method for road conditions. The method is characterized by comprising the following steps that a user selects types of road conditions and/or road events through a client which codes the road conditions and/or the road events; then, the client uploads user information, time information and position information as well as the coding information forming a data link to a server end; the server end receives data transmitted by the client codes and analyzes the data to judge the validity of road conditions and/or road events of the client; if, the information is valid, the information is issued externally; the externally issued road conditions and/or road events are sent to the client in a coded form, and the client receives corresponding customizing information and broadcasts by sound. The method is designed based on man-machine interaction concept, field traffic participants evaluate the road conditions, and finally, objective road condition evaluation results are generated.

A method and apparatus are provided for estimating an impedance through a node at an intersection between roads in a roadway network. The impedance may be measured in time or distance, for example. Characteristic information describes at least one feature of the intersecting roads. One or more pieces of characteristic information may impact the impedance of traffic through an intersection and are used to estimate the impedance through the node. Examples of characteristic information are speed information, road-type, network routing level, intersection angle information, one-way, and cross traffic turn information. An impedance factor, or a cost, is assigned to each piece of characteristic information. The cost may be positive if the characteristic information adds impedance to the node, or negative if the characteristic information subtracts impedance from the node.

The invention provides a soil sampling and detecting device. The soil sampling and detecting device comprises a box body, a soil sampling mechanism, a supporting adjusting mechanism, a movable adjusting mechanism, a crushing and detecting mechanism, an auxiliary operating mechanism and a limiting mechanism. The movable adjusting mechanism suitable for adjusting and transferring different road surfaces is connected with the bottom of the box body and comprises a hub, a supporting plate, a rectangular inner threaded pipe, a rectangular sleeve, a first bevel gear, a second bevel gear, an outer threaded rod, a T-shaped rotating rod, a circular box, a third rotating shaft and a bent plate. According to the soil sampling and detecting device provided by the invention, the form of the corresponding hub needs to be adjusted in the transferring process for pushing and transferring; the device can be suitable for rolling of different types of road surfaces; and when the road condition of the soil conveying road surface is poor, transferring can be conducted in a manual carrying mode; time and labor are saved in the operation process; the working efficiency is improved; the device is suitablefor transferring of two kinds of road surfaces; and the application range of the transferring process is widened.

The present invention relates to a vehicle running track data processing method, in particular to a method inquiring vehicle data through networks. The method comprises the steps that: a vehicle database, a landmark database, a road database and a plurality of path statistic units are arranged in a service center; when a vehicle runs, the current running data of the vehicle is collected at certain times and sent to the center to be stored into the vehicle database; a user sends an inquiry command to the center, and the center accesses the vehicle database and extracts running records to form a running record list; the center traverses the running record list and establishes a road section record list for road sections of various species; the center traverses the road section record list, accesses the landmark database to extract corresponding geographical mark point names according to the longitudes and latitudes of a starting point and an ending point of each road section, and accumulates the running distance of the road section into the path statistic unit of the road type according to road types; the user receives and displays the data and road section record lists of the path statistic units sent by the center.