Abstract: Disclosed are devices, systems and methods for displaying a map for a user. A method of displaying a map for a user comprises: receiving, from a user device, a request to display the map for a geographical region around a vehicle, wherein the request identifies one or more layers of the map; retrieving, in response to the request, map data corresponding to the geographical region from a map database that stores a multi-layer representation of the geographical region; selecting, in response to the request, the one or more layers from the multi-layer representation; and displaying the map on a display of the user device based on the request.

Abstract: A computer-implemented method of map data processing, comprising generating, for a grid-based representation of map data, raw grid features; building a grid map by reading from a memory that stores the raw grid features; and processing the grid map using one or more post-processing operations including a smoothing operation applied across zero or more grid lines of the grid map according to a rule.

Abstract: A method of retrieving a map includes receiving a grid data of the map comprising lane segments, wherein the grid data includes an array of grids each associated with a list including none or at least one of the lane segments intersecting the respective grid; receiving coordinates of a location; identifying a first grid including the location based on the grid data; identifying a target grid that has an associated list including at least one of the lane segments as first lane segment; and outputting the first lane segment.

Abstract: Systems and methods for projecting a three-dimensional (3D) surface to a two-dimensional (2D) surface for use in autonomous driving are disclosed. In one aspect, a control system for an autonomous vehicle includes a processor and a computer-readable memory in communication with the processor and having stored thereon computer-executable instructions to cause the processor to: receive a 3D map including a plurality of objects, determine a base point in the 3D map, shift the objects in the 3D map based on the base point, project the objects in the shifted 3D map to a 2D map, and output the 2D map.

Abstract: A method of retrieving a map includes receiving a grid data of the map comprising lane segments, wherein the grid data includes an array of grids each associated with a list including none or at least one of the lane segments intersecting the respective grid; receiving coordinates of a location; identifying a first grid including the location based on the grid data; identifying a target grid that has an associated list including at least one of the lane segments as first lane segment; and outputting the first lane segment.

Abstract: A method of retrieving a map is disclosed. The method includes receiving a grid data of the map comprising lane segments, wherein the grid data includes an array of grids each associated with a list including none or at least one of the lane segments intersecting the respective grid; receiving coordinates of a location; identifying a first grid including the location based on the grid data; identifying a target grid that has an associated list including at least one of the lane segments as first lane segment; and outputting the first lane segment.

Abstract: Systems and methods for projecting a three-dimensional (3D) surface to a two-dimensional (2D) surface for use in autonomous driving are disclosed. In one aspect, a control system for an autonomous vehicle includes a processor and a computer-readable memory in communication with the processor and having stored thereon computer-executable instructions to cause the processor to: receive a 3D map including a plurality of objects, determine a base point in the 3D map, shift the objects in the 3D map based on the base point, project the objects in the shifted 3D map to a 2D map, and output the 2D map.

Abstract: Systems and methods for projecting a three-dimensional (3D) surface to a two-dimensional (2D) surface for use in autonomous driving are disclosed. In one aspect, a control system for an autonomous vehicle includes a processor and a computer-readable memory in communication with the processor and having stored thereon computer-executable instructions to cause the processor to: receive a 3D map including a plurality of objects, determine a base point in the 3D map, shift the objects in the 3D map based on the base point, project the objects in the shifted 3D map to a 2D map, and output the 2D map.

Abstract: A method of constructing a map including a plurality of lanes and a system thereof are provided. The method includes: for each of the plurality of lanes, constructing corresponding lane geometry data based on a plurality of polyline segments, including constructing a general outline circumscribing the plurality of lanes and identifying an outline of each of the plurality of lanes based on the plurality of polyline segments and the general outline. Outline polyline segments as boundaries of the general outline are selected from the plurality of polyline segments.

Abstract: Systems and methods for projecting a three-dimensional (3D) surface to a two-dimensional (2D) surface for use in autonomous driving are disclosed. In one aspect, a control system for an autonomous vehicle includes a processor and a computer-readable memory in communication with the processor and having stored thereon computer-executable instructions to cause the processor to: receive a 3D map including a plurality of objects, determine a base point in the 3D map, shift the objects in the 3D map based on the base point, project the objects in the shifted 3D map to a 2D map, and output the 2D map.

Abstract: Systems and methods for navigational map version management are disclosed. In one aspect, a map management server includes a processor and a computer-readable memory having stored thereon a navigational map including a plurality of units, each of the units covering an area and including a plurality of objects within or adjacent to roadways within the area. The processor is configured to receive update data for the navigational map, the update data including object data to update the navigational map. The processor is also configured to create a released version of the navigational map that includes one or more updated units. The processor is further configured to provide the released version of the navigational map to an autonomous vehicle.

Abstract: A method of retrieving a map is disclosed. The method includes receiving a grid data of the map comprising lane segments, wherein the grid data includes an array of grids each associated with a list including none or at least one of the lane segments intersecting the respective grid; receiving coordinates of a location; identifying a first grid including the location based on the grid data; identifying a target grid that has an associated list including at least one of the lane segments as first lane segment; and outputting the first lane segment.

Abstract: A method of retrieving a map is disclosed. The method includes receiving a grid data of the map comprising lane segments, wherein the grid data includes an array of grids each associated with a list including none or at least one of the lane segments intersecting the respective grid; receiving coordinates of a location; identifying a first grid including the location based on the grid data; identifying a target grid that has an associated list including at least one of the lane segments as first lane segment; and outputting the first lane segment.

Abstract: A method of constructing a map including a plurality of lanes and a system thereof are provided. The method includes: for each of the plurality of lanes, constructing corresponding lane geometry data based on a plurality of polyline segments, including constructing a general outline circumscribing the plurality of lanes and identifying an outline of each of the plurality of lanes based on the plurality of polyline segments and the general outline. Outline polyline segments as boundaries of the general outline are selected from the plurality of polyline segments.

Abstract: A method of constructing a map including a plurality of lanes and a system thereof are provided. The method includes: for each of the plurality of lanes, constructing corresponding lane geometry data based on a plurality of polyline segments; and generating a lane content for the respective lane based on the lane geometry data.

Abstract: A method of retrieving a map is disclosed. The method includes receiving a grid data of the map comprising lane segments, wherein the grid data includes an array of grids each associated with a list including none or at least one of the lane segments intersecting the respective grid; receiving coordinates of a location; identifying a first grid including the location based on the grid data; identifying a target grid that has an associated list including at least one of the lane segments as first lane segment; and outputting the first lane segment.

Abstract: A method of constructing a map including a plurality of lanes and a system thereof are provided. The method includes: for each of the plurality of lanes, constructing corresponding lane geometry data based on a plurality of polyline segments; and generating a lane content for the respective lane based on the lane geometry data.

Abstract: An electronic apparatus and a method for switching a display mode are provided. The method includes: turning on the electronic apparatus to enter a full-screen display mode; switching the full-screen display mode to a block display mode when a mode-switching signal is triggered; and enabling a corresponding operation interface in the block display mode according to an execution state of an operation system of the electronic apparatus in the full-screen display mode and displaying the operation interface in the designated block of the display unit.

Abstract: An electronic device includes a base, a rotating element and a sliding element. The rotating element is pivoted to the base. The sliding element is slidably disposed on the base. When the rotating element is rotated relative to the base and an included angle between the two is greater than a specific angle, the sliding element slides from a first position to a second position relative to the base.

Abstract: A portable electronic system includes a movable structure, a protective structure and an electronic device. The movable structure is disposed on the protective structure. The movable structure includes a wireless communication tag thereon. The electronic device is accommodated in the protective structure, and includes a signal detection unit and an application activation unit. The movable structure is movable on the protective structure to approach or leave the electronic device. The signal detection unit is used for detecting a signal wirelessly transmitted by the wireless communication tag when the distance between the movable structure and the electronic device is less than a predetermined value. The application activation unit is used for activating an application in response to the signal detected by the signal detection unit.