298results about How to "Improve navigation efficiency" patented technology

The invention discloses a constructing method and a navigation method of a global boundary map. The constructing method comprises the following steps: firstly, determining a virtual cleaning zone in working space while a robot is started, labeling boundary characteristic information of a navigation boundary during a sweeping process of the virtual cleaning zone, and constructing a local boundary map; secondly, converting data of the local boundary map to a global coordinate system; moving to unswept zone after completing the sweeping of the virtual cleaning zone, determining a next virtual cleaning zone, continuously labeling the boundary characteristic information, repeatedly recycling, exiting the recycling after completing the sweeping of the whole working space, and completing construction of the global boundary map; finally, navigating by selecting the navigation boundary as a navigation path. According to the method for constructing the local boundary map and the global boundarymap, disclosed by the invention, rapid navigation of the robot is realized under a condition that the boundary characteristic information is reserved; meanwhile, system memory is saved, and the flexibility and high efficiency of navigation of the robot can be improved.

The invention discloses a driving safety auxiliary control method and a driving safety auxiliary control system. The driving safety auxiliary control system comprises a driving computer (8) used for acquiring a signal and extracting vehicle driving data representing the vehicle running status from the signal, a vehicle terminal (1) used for detecting and collecting the vehicle driving data, and a wireless communication network (13) used for receiving the vehicle driving data, combining the vehicle driving data with networking information through a server (14), prejudging the running status of a vehicle and the traffic around the location of the vehicle, and generating safety prompt information corresponding to a prejudgment result. In the process of vehicle driving, a user receives various driving safety alert information and the best driving route avoiding congested roads and speed-limiting and restriction roads in real time through the driving safety auxiliary control system of the invention. The efficiency of navigation and the safety factor of vehicles can be improved, and the time consumed on the road can be shortened for users.

The invention discloses an underground pipeline positioning method based on a CORS (continuous operational reference system). The method comprises the following steps of: I, establishing a CORS; II, collecting paper drawings: collecting the pipeline as-built drawings of all underground pipelines paved in an area to be positioned and the topographical map around each underground pipeline respectively; III, making an electronic map, wherein the making process comprises the steps of paper map electronization treatment, drawing scanning and pretreatment, raster image transfer, raster image orientation, image sector conversion, pipeline attribution information marking, edge matching treatment, projection conversion, data check, conversion into an embedded electronic map and the like; IV, transferring and visually displaying the electronic map; V, superposing the coordinate data of the electronic map; and VI, positioning the underground pipelines. The method disclosed by the invention is easy and convenient to use and operate, has a good using effect and high practical value, and can really realize accurate positioning of the underground pipelines and effectively solve the problems of inconvenience in positioning operation, relatively bad positioning effect and the like of the existing underground pipeline positioning method.

The invention provides a map navigation method. The method comprises the following steps: a server receives a real time image sent by a mobile terminal and navigation condition information for confirming a navigation path, wherein the navigation condition information includes information of a navigation destination; comparing the real time image with a data image in an image database, and determining the current position and direction of the mobile terminal; calculating a navigation path from the current position to the navigation destination according to the navigation condition information; and obtaining the traveling direction identifier information of the navigation path according to the navigation path, the traveling direction of the navigation path and the current position and direction of the mobile terminal, and sending the traveling direction identifier information to the mobile terminal. The invention also provides a map navigation apparatus and a system thereof. The map navigation method, the apparatus and the system realize map navigation of the real time image shot by a user, and can improve the navigation efficiency.

The invention reveals a topological map building method of a mobile robot, comprising the following steps: S1: building a current region according to environmental information of current position of a mobile robot; S2: judging whether the current region accords with the sub-region division condition; entering S3 if the current region accords with the sub-region division condition; and entering S4 if the current region does not accord with the sub-region division condition; S3: dividing the current region into at least two sub-regions which contain the sub-region of current position and are connected through a boundary, and then entering S5; S4: considering the current region as the sub-region of the current position, and then entering S5; S5: building a local map at the sub-region of the current position and storing; S6: judging whether there exists a sub-region without local mapping, entering S7 if yes, and entering S8 if not; S7: letting the mobile robot move to the sub-region without local mapping, updating information of the current position and returning to S1; and S8: building a topological map with the sub-region as the node and the boundary as the edge. In addition, the invention also discloses a navigation method of the mobile robot based on the topological map.

The invention discloses an intelligent navigation device, a navigation terminal and an information navigation method in the terminal. The invention embodiment comprises: obtaining the text information in the terminal; judging whether the navigation program has started; if not, starting the navigation program and introducing the text information into the navigation program to process; if yes, introducing the text information into the navigation program directly to process; therefore, user can call the navigation program from other application programs in the terminal rapidly and conveniently; the system can induced the text information needing navigation automatically for navigation, avoids the errors caused by the user artificial input information, while increasing the navigation efficiency and facilitating users.

The invention provides a navigation method in live-action function on a mobile terminal. The method comprises the steps of running an electronic map program on the mobile terminal; determining a target site address according to operations of a user on the electronic map program; acquiring a current geographical location of the mobile terminal; displaying a live-action shooting image on the mobile terminal; drawing a navigation route in a live-action function interface according to the current geographical location and the target site address; detecting a ground image area in the live-action shooting image; mapping the navigation route to a plurality of characteristic points of the ground image area; identifying movement of the characteristic points of the ground image area on the live-action shooting image; and keeping continuity of the navigation route along a connecting line of the characteristic points. Accordingly, the invention provides an electronic map client. The navigation method and the electronic map client can increase navigation efficiency of a live-action function.

The invention discloses a positioning device and method based on depth vision and a robot. The positioning device is a movable vision positioning device which comprises a rear image collection module,a depth recognition module, an image processing module, an inertia processing module and an integrating positioning module. The rear image collection module is used for collecting landmark images forachieving positioning, the depth recognition module is used for recognizing the ground and objects on the ground, the image processing module comprises an image preprocessing submodule and a featurematching submodule and is used for processing image information input by the rear image collection module and the depth recognition module, the inertia processing module is used for sensing displacement information of an inertia sensor in real time, and the integrating positioning module is used for integrating environment information obtained by sensor modules for achieving positioning. Comparedwith the prior art, a three-dimensional depth sensor installed on the front portion provides new address information for a camera with the face inclined backwards in real time to complete positioningin a matching mode, accordingly, computing resources in the positioning navigation process are reduced, and the synchronous positioning efficiency is improved.

The invention relates to a method for calibrating zero offset of a quartz flexible accelerometer component, which is a system grade calibrating method using a velocity error as observed quantity. In the method, the conventional calibration equipment is still used, the six-position calibration scheme has simple operation and high calibration accuracy; and compared with conventional multi-position division calibration test, the calibrating time of the method of the invention is greatly shortened, calibration errors caused by rotary table errors when multiple positions are calibrated are reduced, and the navigation performance of a strapdown inertial navigation system can be improved. The invention provides a practical system grade calibration method for the accelerometer component.

The invention discloses a virtual reality technology-based indoor navigation method and a system and belongs to the technical field of indoor navigation. The navigation method comprises the followingsteps: confirming a position of a user terminal by establishing an indoor 3D map containing a 360-degree VR real image and interesting points and by matching a real-time image shot by the user terminal with the 360-degree VR real image; confirming the shortest route from a starting point to a destination according to an A* algorithm, thereby planning a navigation route. A navigation system comprises a map module, an image acquisition module, a rectification module, a position acquisition module, a processing module and a guiding module. The virtual reality technology-based indoor navigation method and system do not rely on other additional equipment and can solve the problems of low efficiency and low accuracy of the present indoor navigation technology.

The invention discloses a thumbnail navigation method and an apparatus thereof. The apparatus comprises: a file monitor module, a thumbnail synchronization module and a thumbnail display module, wherein the file monitor module is used for monitoring changes of a file in a currently-browsed folder and notifying the thumbnail synchronization module if any changes of an image in the folder is detected; the thumbnail synchronization module is used for adjusting the thumbnail of the folder after receiving a notice from the file monitor module; and the thumbnail display module is used for displaying the thumbnail of the folder according to the thumbnail obtained through adjustment by the thumbnail synchronization module. The invention also discloses a thumbnail navigation method capable of adjusting and displaying thumbnails of images in real time if the images change, such as images adding, deleting or updating, thereby improving thumbnail navigation efficiency and user experience.

The invention discloses a real-time navigation method based on road conditions. The method comprises: a road condition acquisition unit periodically collects real-time traffic information of each road section, and sends the real-time traffic information to a real-time traffic server, and the real-time traffic server receives the real-time traffic information After information processing, the real-time congestion degree of each road section is obtained; the terminal navigation device obtains the starting position and the end position, and provides driving route 1 after path calculation; the terminal navigation device obtains the congestion degree of each road section from the current position to the end position, based on the congestion degree The lowest strategy provides driving route 2; the terminal navigation device obtains the predicted congestion degree of each road section from the current position to the terminal position after a predetermined time period, and provides driving route 3 based on the lowest predicted congestion degree strategy. Compared with the prior art, the present invention enables users to conveniently and clearly know the real-time road conditions on the way and the predicted road conditions after a period of time, provides three routes for users to choose, has strong real-time performance, and improves navigation efficiency.

The invention discloses an underwater intelligent self-adapted terrain matching method based on terrain information amount and mainly aims to solve the problems that the terrain information amount of an underwater navigation region is not sufficient or not complete so that the error of an aided navigation system is increased and the long-time accurate navigation and positioning requirements of an underwater vehicle cannot be met. The underwater intelligent self-adapted terrain matching method mainly comprises the following steps: calculating different terrain feature parameter values in the navigation region; calculating a terrain information amount aggregative index based on an intelligent method; and carrying out sampling time calculation and a self-adapted terrain matching algorithm based on a terrain information amount aggregative index value. According to the method, the problems that the terrain information amount of the underwater navigation region is not sufficient so that the error of the aided navigation system is increased and the single terrain feature index can cause the incomplete evaluation on the terrain information amount can be effectively improved; the intelligent method is used for comprehensively considering the influence of each index; the sampling time is adjusted by the terrain information amount in a self-adapted manner, the matching range is enlarged and the matching precision is improved.

The invention discloses an information sharing-based navigation system and navigation method, the navigation system comprises multiple vehicle-mounted navigation devices and a server, the location information and the path information of a vehicle, on which a vehicle-mounted navigation device is, are sent to the server by the vehicle-mounted navigation device, and according to the location information and/or the path information of vehicles on which other vehicle-mounted navigation devices are, path programming or path programming adjustment is performed, wherein the location information and/or the path information are/ is issued by the server; the location information and the path information sent by the vehicle-mounted navigation device are received by the server in collaborative driving mode, and the location information and/or the path information are/ is issued to other vehicle-mounted navigation devices. The navigation system and navigation method improve the driving safety, and improve the team travel navigation efficiency.

The invention discloses a shutter type hydraulic self-control gate. The shutter type hydraulic self-control gate comprises a gate frame, window lattices, small door leaves and small door spindles, wherein, a plurality of window lattices are arranged in the gate frame; the small door spindles are arranged at the top part of the window lattices; the small door leaves are suspended on the small door spindles; a large door spindle is arranged at the top part of the gate frame to form a top spindle shutter type hydraulic self-control gate; and a large door spindle is arranged at the bottom part of the gate frame to form a bottom spindle shutter type hydraulic self-control gate. The top spindle type and fixed type shutter type hydraulic self-control gate can efficiently utilize tidal power resources in riverine and coastal areas and effectively control reservoir deposits of tidal power station, and provides safe energy and water insurance for the development of riverine and coastal areas. The bottom shaft type shutter hydraulic self-control gate can be used as a navigation gate of a ship elevator, reduce the open and close resistance of a flap gate and the error of water level of navigation, shorten navigation time, and comprehensively improve the navigation efficiency of ship elevators. Compared with the traditional gate, the shutter type hydraulic self-control gate has good work state and the passing water current is uniform.

Disclosed are a road condition event information providing method, a device and a guided system. The road condition event information providing method comprises the following steps: confirming current position information of a guided object in an electronic map; confirming an area scope on the basis of the current position information of the guided object, wherein the area scope comprises an electronic map area within the scope of a current screen; and matching the area scope with road condition event information stored in a road condition event information data bank; providing the road condition event information within the scope of the area for a user according to a matching result. According to the technical scheme, the guided system can automatically match the road condition event information stored in the road condition event information data bank with the confirmed area scope, and providing the road condition event information within the scope of the area for the user according to the matching result, so that guiding efficiency of the guided system is improved.

The invention provides a path navigation method and device. The method comprises the steps that query data are obtained, the query data comprise a departure point and a destination point, and two or more navigation paths from the departure point and the destination point are further obtained according to the query data, so that the two or more navigation paths can be output in a navigation map. Not only one navigation path is displayed in the navigation map any more, instead, all the navigation paths can be displayed, therefore, the technical problem that in the prior art, data interaction between an application and a terminal is increased due to the fact that a user switches applications repeatedly so as to display all the navigation paths on the navigation map can be avoided, and thereby processing burden of the terminal is lowered.

The invention discloses a multi-destination path navigation method, comprising the following steps: a) selecting an interest point through a mobile terminal to serve as a destination, sending a path navigation request to a server, and calculating a first navigation path through the server with the destination as end point; b) searching interest points with the same name or category within a preset range on the surrounding of the destination through the server; c) if interest points with the same name or category exist, using all searched interest points as end points, and continuing to calculate the navigation path to obtain a plurality of second navigation paths; d) respectively comparing the plurality of second navigation paths with the first navigation path, and if a second navigation path with better pre-estimated distance or pre-estimated time obviously exists, simultaneously sending the second navigation path and the first navigation path to the mobile terminal for selection. By adopting the multi-destination path navigation method provided by the invention, detour or time waste caused by improper destination selection of a user is avoided, and the navigation efficiency is greatly improved.