87 results about "Area navigation" patented technology

An improved method of high accuracy beam placement for local area navigation in the field of semiconductor chip manufacturing. This invention demonstrates a method where high accuracy navigation to the site of interest within a relatively large local area (e.g. an area 200 μm×200 μm) is possible even where the stage / navigation system is not normally capable of such high accuracy navigation. The combination of large area, high-resolution scanning, digital zoom and registration of the image to an idealized coordinate system enables navigation around a local area without relying on stage movements. Once the image is acquired any sample or beam drift will not affect the alignment. Preferred embodiments thus allow accurate navigation to a site on a sample with sub-100 nm accuracy, even without a high-accuracy stage / navigation system.

A navigation system to aid in the navigation through an unknown area. The navigation system includes a plurality of radio frequency identification (RFID) tags, at least one a portal terminal and at least one navigation device. The plurality of RFID tags are positioned throughout an area to be traversed. The at least one portal terminal is located near an entrance to the area to be traversed. The at least one portal terminal is adapted to upload a map of the area to be traversed. The map includes the location of each RFID tag. The at least one navigation device is adapted to download the map from the portal terminal. The at least one navigational device is further adapted to display its location in the area to be traversed based at least in part on the detection of one or more of the plurality of RFID tags.

A vehicle dynamic navigation method and system in which an on-vehicle main unit calculates a total navigation path subject to the set start location and destination, and transmits a position information indicative of the vehicle's current position received from a global positioning system through a wireless transceiver to a remote traffic information server so as to obtain a real-time traffic-problem location data of a neighboring area from the remote traffic information server, and then constitutes a district navigation path based on the part of the total navigation path within the neighboring area, and then determines whether the district navigation path and the traffic-problem location data overlap each other, and then re-proposes the district navigation path when the district navigation path and the traffic-problem location data are found to overlap.

The invention discloses an area navigation method and a navigation terminal. The area navigation method comprises the following steps of: receiving a navigation request by the navigation terminal, wherein the navigation request includes destination information; acquiring an area navigation map corresponding to the destination information, wherein the area navigation map corresponding to the destination information includes path navigation information of at least one path leading to a destination in an area in which the destination is preset; acquiring current position information; and returning to the path navigation information from a path to the destination when a current position is on the path in the area in which the destination is preset according to the current position information and the area navigation map corresponding to the destination information. According to the area navigation method and the navigation terminal, the problem that the navigation efficiency is low because a conventional navigation system needs to continuously calculate an optimal path is solved.

The invention belonging to the technical field of navigation discloses a moon navigation system based on an earth GNSS and a moon navigation satellite. According to the invention, a navigation satellite is added to the lunar orbit; navigation signals compatible with GNSS are broadcasted. The earth GNSS is combined to improve the observation geometry of the lunar user, and meanwhile, bidirectionaltime synchronization links between the earth GNSS navigation constellation and the lunar navigation satellite and between the lunar navigation satellite and the lunar user are established, so that theproblem that the clock error and the radial position error of a user receiver cannot be decoupled is solved and the real-time positioning precision of the lunar user is improved. Meanwhile, a lunar surface radio beacon is added to a lunar key area, navigation signals compatible with GNSS are broadcasted, and the regional navigation performance is enhanced. On the basis of increasing a few of of lunar navigation resources, the real-time performance and precision of lunar user navigation and positioning can be greatly improved, real-time high-precision navigation service is provided for lunar flight, fixed-point landing return and lunar surface inspection, maneuvering at any time under emergency conditions is supported, and beyond-visual-range lunar-based space short message communication is provided.

An improved method of high accuracy beam placement for local area navigation in the field of semiconductor chip manufacturing. This invention demonstrates a method where high accuracy navigation to the site of interest within a relatively large local area (e.g. an area 200 μm×200 μm) is possible even where the stage / navigation system is not normally capable of such high accuracy navigation. The combination of large area, high-resolution scanning, digital zoom and registration of the image to an idealized coordinate system enables navigation around a local area without relying on stage movements. Once the image is acquired any sample or beam drift will not affect the alignment. Preferred embodiments thus allow accurate navigation to a site on a sample with sub-100 nm accuracy, even without a high-accuracy stage / navigation system.

The present disclosure relates to communications devices and methods of controlling communications devices. According to one example, a communications device for transmitting data to and receiving data from a mobile communications network, comprises a transmitter configured to transmit signals representing the data via a wireless access interface to the mobile communications network, a receiver configured to receive the signals representing the data via the wireless access interface from the mobile communications network and a controller configured to control the transmitter and the receiver to transmit and to receive the data via the wireless access interface. The controller is configured to identify during an initialisation phase, from received information, a predetermined priority for synchronising the transmitter and receiver for transmitting and receiving the signals representing the data to and from the mobile communications network, the predetermined priority including at leastone of a global navigation signal, a regional navigation signal and a synchronisation signal received from another communications device, the global navigation signal and the regional navigation signal having a higher priority than the synchronisation signal received from the other communications device, and to control the transmitter and the receiver to synchronise the transmitting and the receiving based on a selected one of the global navigation signal, the regional navigation signal and the synchronisation signal received from the other communications device in accordance with the predetermined priority.

The invention discloses an area navigation performance evaluation device based on a foundation navigation device, comprising a foundation area navigation update area calculating module in charge of generating a covering model of a navigation station and further calculating available update area scope for foundation navigation, a navigation precision analysis module in charge of analyzing the navigation precision of determinate area according to update area covering scope and a result output module in charge of outputting the processed analysis result in a standard format as a formal report. The invention also discloses an area navigation performance evaluation method based on the foundation navigation device. The device and the method provide supplementary means for area navigation route planning and navigation station construction layout by calculating on signal covering situation of the foundation station and update area covering situation and covering analyzing on the special area under the foundation of foundation navigation station basic data.

The invention discloses a scenic area navigation system which comprises a central processing unit and a setting module, a data module, a map module, a task module, a VR module, an AR module and an interaction module which are correspondingly connected with the central processing unit. The invention further discloses a navigation method adopted by the scenic area navigation system. The method comprises a VR module navigation method, an AR module navigation method and an interaction module navigation method. The VR module, the AR module and the interaction module are added on the basis of a traditional scenic area navigation system, a user is guided through the corresponding navigation method, VR interaction, AR interaction and other interactions are performed, a museum exhibition product isshown to tourists in various modes of 3D animation, 2D animation, videos, voices, images and the like, the museum is activated vividly and all-dimensionally, and the museum exhibition interestingnessand attraction are improved.

The invention relates to a navigating device used in region navigation, which comprises a processing module for controlling the working state of the navigating device and processing data, a user controller for receiving the control information sent from user, a navigation information output portion for outputting navigation information to user, a power supply for powering each element of the navigating device, a memory unit for storing an electric map, and a wireless signal receiving / emitting module for transmitting data with external device. the user controller receives an operation command indicating destination, the wireless signal receiving / emitting module receives a data pack sent from an external device nearest with the navigating device and obtains the present position of user via the data pack, the processing module according to the position of user, the destination, and the electric map obtains a navigation path, as the navigation information to be output to the navigation information output portion to be played, thereby realizing region navigation.

The invention relates to an information coupling system for regional navigation, a cartographic information supply device and a regional navigation device. Firstly, a regional cartographic information is written to a storage module of the cartographic information supply device by a write module, then the cartographic information supply device transfers the regional cartographic information to the regional navigation device in a wired or wireless manner, and a user can know the feature information of each special position point through the operation of special position points on the map, or the regional navigation device can generate corresponding regional trip path according to the requirement of the user to facilitating the trip of the user. Meanwhile, the cartographic information supply device and the regional navigation device have low cost, thus greatly lowering the navigation cost to provide benefit for more common people and enable the people to fully know the various feature information in a certain region.

An improved method of high accuracy beam placement for local area navigation in the field of semiconductor chip manufacturing. Preferred embodiments of the present invention can also be used to rapidly navigate to one single bit cell in a memory array or similar structure, for example to characterize or correct a defect in that individual bit cell. High-resolution scanning is used to scan only a “strip” of cells on the one edge of the array (along either the X axis and the Y axis) to locate a row containing the desired cell followed by a similar high-speed scan along the located row (in the remaining direction) until the desired cell location is reached. This allows pattern-recognition tools to be used to automatically “count” the cells necessary to navigate to the desired cell, without the large expenditure of time required to image the entire array.

The invention provides an intelligent driving assistance system. The intelligent driving assistance system comprises a multifunctional positioning unit, a barrier detection unit, a blind compensation unit, a fining navigation unit, a vehicle-mounted CPU (Central Processing Unit), a storage unit and a cloud communication unit. According to the intelligent driving assistance system provided by the invention, a blind area of GPS (Global Positioning System) navigation can be effectively remedied, and the demands on positioning navigation under various environments are realized through various positioning forms; in addition, the driving safety is more comprehensively ensured through barrier laser detection and blind compensation detection, and accurate area navigation is realized through fining navigation operation.

The invention discloses a method for automatic management of an airborne navigation transceiver. The method includes: forming a candidate navigation station list according to airplane current position information, and if the list is not null, selecting to-be-tuned navigation stations in the next period; if no appropriate navigation station is found, keeping searching in the next period; if the appropriate navigation station is found, tuning the found navigation station; if no transceiver is available, performing system status monitoring in the next period; if the available transceiver is found, tuning the navigation station, and checking tuning of the navigation station; if tuning succeeds, selecting other navigation stations in the next period. The method is easy for engineering implementation and has important practical application significance to meeting of area navigation required functions of aircrafts flying in civil fields.