34results about How to "Precise Indoor Positioning" patented technology

The invention discloses an intelligent bag. The intelligent bag comprises a portable bag, a power source, an intelligent sensor, a network layer, a microprocessor, a man-machine interaction apparatus and an application layer. The intelligent bag is reasonably and effectively integrated with a series of technologies such as navigation positioning, block chains, electronic sensing, data networks, artificial intelligence, distributed calculation, automatic control, machine identification, mobile computation, man-machine interaction and the like and is embedded into a portable terminal so as to improve trip experience of people. An intelligent bag user, as a manager, a supervisor and a user of a peer-to-peer network system in a wireless Ad-hoc network, can perform self-disposition, self-maintenance, self-learning and self-production so that a decentralized self-growing trip database can be constructed. Hopefully, the intelligent bag can be a terminal member of the internet of things of an intelligent city traffic system.

An indoor positioning method, a navigation method and a system are provided in embodiments of the invention to overcome a problem that an accumulated error/non-line-of-sight error in the prior art ishigh. The indoor positioning method is applied for an automatic guided vehicle (AGV). The AGV includes a main controller, an inertial navigation system (INS) and at least two UWB electronic tags. Themethod includes acquiring, by the main controller, first positioning data and first attitude data from the INS; acquiring data about a distance between the UWB electronic tags and each UWB base station from the at least two ultra wide band (UWB) electronic tags; determining second positioning data and second attitude data of the AGV by utilizing the acquired distance data; and subjecting the firstand second positioning data and the first and second attitude data to autoregression data processing by utilizing Kalman filters to obtain optimum positioning data and optimum attitude data. Accuratepositioning data can be obtained by the method so as to obtain navigation information, and an ideal navigation precision can be obtained by utilizing a cheap device.

The invention discloses a method and a device for positioning a terminal. The method comprises steps: WiFi information of a position where a user is currently is acquired; the device for positioning terminal is sent to a server connected with the terminal; the current position is photographed to obtain a current scene image, and the current scene image is sent to the server; and a target fingerprint map and a target position sent by the server are received, and the target position is displayed on the target fingerprint map. According to the technical scheme of the invention, the target fingerprint map which is more detailed and more accurate and corresponding to the current position is built through the server, more accurate positioning is thus realized according to the WiFi information of the position where the user is currently, and the user is greatly facilitated.

The invention relates to an indoor positioning and navigation method based on laser SLAM (Simultaneous Localization and Mapping). The indoor positioning and navigation method comprises the following steps: S1, constructing an indoor global map by adopting a laser SLAM technology; S2, dividing the global map into a plurality of sub-region maps which are not repeated; dividing an indoor space into aplurality of sub-regions through an electronic fence according to divided sub-region maps; and S3, enabling a robot to walk in the electronic fence and constructing a local map by utilizing the laserSLAM technology, and looking up matched sub-region maps according to the local map and acquiring a current position. Even if the distribution of building structures and function sub-chambers of different indoor places is the same, accurate indoor positioning and navigation also can be realized.

The invention provides an indoor positioning method and device of a VR game and a storage medium. The method comprises steps of arranging multiple cameras on a ceiling according to a preset rule and synchronously shooting a moving object adhered with an identification code on the ground through the cameras; acquiring an image corresponding to the identification code at an interval of preset time,and determining the second coordinate of the identification code in the image according to the image and the first coordinate of the camera corresponding to the image in the world coordinate system; and according to the first coordinate and the second coordinate, calculating movement information of the moving object in the world coordinate system and sending the movement information to connected VR devices through the server so as to allow the VR devices to display an indoor scene according to own vision angles. According to the invention, by distributing a fixed world coordinate to each camera, the world coordinate and the angle of the identification code are inversely calculated according to the identification code shot by the cameras, so precise indoor positioning of the moving object is achieved.

The invention provides a positioning method and system in predetermined space. The method comprises: a signal transmitting unit is installed at fixed equipment or a fixed position in predetermined space and transmits overall map layout information of the predetermined space as well as relative positioning information of the fixed equipment or fixed position in the predetermined space; when a mobile terminal roams at the fixed equipment or fixed position, the relative positioning information and overall map layout information that are transmitted by the signal transmitting unit are received; the mobile terminal carries out relative positioning in the predetermined space and/or calculates a path arriving at a point of interest in the determined space based on the relative positioning information and overall map layout information. With the method and system, precise positioning can be realized well at an underground parking lot, a building, and a lobby at an airport, and other places where the GPS can not carry out positioning precisely. Moreover, even positioning at different floors can be realized accurately and two-dimensional and three-dimensional maps can be sent to the mobile terminal.

The invention discloses a robot indoor positioning method and system based on an infrared distance measuring sensor. When a robot detects a determination instruction that a user selects the current indoor environment as the initial walking environment, position information of all positioning points on the current indoor ground and circumferential environment distance information corresponding to each position information are stored; environment distance information is obtained through the infrared distance measuring sensor by means of the unique of the certain circumferential environment distance information of the robot at different positions, and recognizing and positioning are achieved. Efficient indoor positioning of the robot is achieved, and the good robustness is achieved.

Provided is a technique for estimating an indoor position, by which a terminal may receive a positioning signal from a pseudo satellite, using a plurality of receiving antennas, determine a position of the pseudo satellite based on positional information included in the received positioning signal, estimate a direction of the pseudo satellite based on a phase difference of the positioning signal at each of the plurality of receiving antennas, and estimate a location of the terminal based on the positional information of the pseudo satellite and the estimated direction of the pseudo satellite.

The invention discloses a parking planning assistance method and system based on AR glasses. The method comprises the following steps: step S1, acquiring current location information when a parking request is acquired, acquiring the information of a surrounding parking lot according to the current location information, and outputting the acquired information of the surrounding parking lot via theAR glasses for display; step S2, acquiring a selection request of a user, determining the corresponding parking lot according to the selection request of the user, automatically generating a path planfrom the current location to the parking lot according to the determined parking lot, and outputting the path plan via the AR glasses for display; and step S3, when a vehicle arrives at the entranceof the corresponding parking lot, automatically matching an appropriate parking space according to the detailed information of the selected parking lot and the vehicle information of the current vehicle, and outputting the appropriate parking space via the AR glasses for display. By adoption of the parking planning assistance method and system disclosed by the invention, the parking efficiency ofthe parking user can be improved.

The invention discloses a rail transit positioning and navigation method and system based on Bluetooth positioning and a rail transit positioning and navigation method. The rail transit positioning and navigation method comprises the following steps: S1, drawing a scene map according to an application scene of rail transit; S2, installing a plurality of Bluetooth beacons in an application scene ofthe rail transit; S3, collecting an RSSI signal of the Bluetooth beacon on site through the intelligent terminal; and S4, positioning the intelligent terminal according to the acquired RSSI signal, and marking a positioning result in the scene map. According to the invention, the plurality of Bluetooth beacons are installed in the application scene of the rail transit, and the intelligent terminal is positioned through the Bluetooth positioning algorithm, so that the positioning precision is improved, and more accurate indoor positioning of the rail transit is realized.

The present invention relates to a building structure data-based object method, a building structure data-based object positioning device and an electronic device. The method includes the following steps that: the first position of an object to be positioned is obtained by using a first positioning method; the second position of the object to be positioned is obtained by using a second positioningmethod; the moving direction of the object to be positioned is obtained based on the first position and the second position; and the second position and the moving direction are corrected based on building structure data, so that the positioning result of the object to be positioned can be obtained. In this way, the positioning result can be calibrated through the building structure data, and theaccurate positioning of an interior structure can be achieved.