Abstract:
Un método de funcionamiento de un sistema de navegación (100) que comprende: proporcionar una imagen de 360 grados (1200) de una zona geográfica; superponer un realce de ruta futura (1204) sobre dicha imagen que identifica un trayecto a recorrer; y superponer un realce de ruta pasada (1202) sobre dicha imagen que identifica un trayecto ya recorrido, en el que la superposición del realce de ruta futura se configura para distinguirse visualmente de la superposición del realce de ruta pasada.
Abstract:
A method is provided for controlling traffic lights of a road geometry network using a cloud-based traffic control system. Methods may include: receiving map data including road network geometry and traffic light locations relative to intersections of the road network geometry; receiving signal phase and timing of traffic lights at the traffic light locations; receiving probe and sensor data from a plurality of probes traversing the road network geometry; analyzing the received probe and sensor data from the plurality of probes relative to the road network geometry and the traffic light locations; determining revised signal phase and timing for at least one traffic light within the road network geometry based on the analyzed probe and sensor data relative to the road network geometry and the traffic light locations; and providing revised signal phase and timing to the at least one traffic light within the road network geometry.
Abstract:
A method is provided for gathering probe data and using the gathered data to establish traffic speeds for various paths through an intersection. Methods may include receiving probe data from a plurality of probes approaching an intersection along a common road segment; receiving probe data from the plurality of probes exiting the intersection along two or more different road segments; determining traffic speed for each path through the intersection from the common road segment based on the received probe data from the plurality of probes approaching the intersection along the common road segment and the received probe data from the plurality of probes exiting the intersection along two or more different road segments; and generating an indication of the traffic speed for each path through the intersection to be provided for display on a graphical representation of the intersection.
Abstract:
A method is provided for identifying and indexing lanes of an intersection. Methods may include: determining a directionality for one or more lanes for each of two or more roadways proximate an intersection, where directionality is one of toward the intersection or away from the intersection; determining a bearing for each lane of the two or more roadways proximate the intersection, where the bearing includes a compass heading informed by the directionality; determining a lane position for each lane of the two or more roadways proximate the intersection; generating an order of the lanes using a hierarchy, where the hierarchy considers directionality first, bearing second, and lane position third; causing the generated order of the lanes to be stored in a memory, where the order of the lanes is associated with the intersection; and managing signal phase and timing of the intersection using the generated order of the lanes.
Abstract:
A method is provided, which includes scanning at least one radio frequency identification (RFID) tag to obtain an identifier of the RFID tag; querying a database using the identifier of the at least one RFID tag to collect information about a location of the at least one RFID tag; determining a bias of a vehicle relative to the location of the scanned at least one RFID tag; and calculating a location of the vehicle based on the bias and the location of the at least one RFID tag.
Abstract:
A software development test platform, method and computer program product are provided to evaluate, on a perceived information level, visual output generated by execution of computer software. In the context of a method, data is provided that is representative of the visual output generated in response to execution of computer software. The method also includes comparing the data representative of the visual output to a reference image utilizing perceptual hashing. The comparison of the data representative of the visual output to the reference image includes comparing a hash value of the data representative of the visual output and a hash value of the reference image to define a perceptual difference between the visual output and the reference image. The method further includes determining the visual output to be acceptable in an instance in which the perceptual difference satisfies a predefined threshold.
Abstract:
A method including retrieving a multi-dimensional map (30) from a navigation system memory (27); determining an aerial route (64) between two locations (60, 62) based at least partially upon the multi-dimensional map (30); and storing the aerial route (64) in the navigation system memory (27). The multi-dimensional map (30) includes terrain information (32) and object information (34). The object information (34) includes information regarding location (42) and size (44) of objects (68, 70, 72) extending above ground level. The objects (68, 70, 72) are in uncontrolled airspace, and the object information (34) includes height information (46) regarding a height above ground level of at least some of the objects (68, 70, 72). The aerial route (64) is limited to the uncontrolled airspace, where the aerial route is over and around at least some of the objects (68, 70, 72), and where the aerial route (64) is determined, at least partially, based upon the height information (46) of the objects (68, 70, 72).
Abstract:
A method, computer program, and apparatus are provided for generating summaries of changes in a geographic database used by mapping, navigation, and similar applications. The summaries may be included in an automated release report. Changes 5 such as new roads, and any other changed data in the geographic database may impact various client systems. Administrators of client systems may review the automated release reports and summaries therein to easily determine what changes have been made in a new version of the database. Depending on the client, various levels of granularity and varying data may be included in the summaries and report.
Abstract:
A method, apparatus and computer program product are provided in order to convert a representation of a road geometry in the form of an analytical curve to a clothoid road geometry. In the context of a method, a plurality of break-point locations are determined along an analytical curve that represents a portion of the road network. The method determines the plurality of break-points locations by determining the plurality of break-point locations depending upon a curvature profile of the analytical curve so as to define one more sections of the analytical curve based upon the break-point locations. The method also converts one of more sections of the analytical curve to respective clothoids.
Abstract:
A method, apparatus and computer program product are provided in order to create a clothoid road geometry. In the context of a method, a link geometry representative of a portion of a road network is converted into a plurality of link splines. 5 The method also includes converting the plurality of link splines into respective sequences of one or more clothoids based upon curvature profiles of the link splines.