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

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.

The invention relates to an indoor positioning and navigation method based on laser SLAM, comprising the following steps: S1. Constructing an indoor global map using laser SLAM technology; The sub-area map divides the room into several sub-areas through the electronic fence; S3. The robot walks in the electronic fence and uses laser SLAM technology to build a local map, and searches for the matching sub-area map according to the local map and obtains the current position. Even if the building structure and the distribution of functional rooms in different indoor places are the same, the present invention can realize accurate indoor positioning and navigation.

The embodiment of the invention discloses a visible light-based positioning method and a system, and a mobile terminal. The method comprises steps that: the mobile terminal acquires visible light given out by an indoor light source after modulation, wherein the visible light carries a position ID of the light source; and the mobile terminal carries out positioning according to the binding relation between the position ID and the position information of the light source. The position is judged according to a single signal, so an information processing process based on a positioning algorithm is omitted, thereby achieving rapid and precise indoor positioning. The mobile terminal can monitors electric quantity of a cell in real time, and adjusts acquisition parameters for acquitting the visible light according to the rest electric quantity of the cell, so energy consumption of the mobile terminal in a positioning process is effectively reduced and the cruising ability of the mobile terminal is extended.

The invention discloses an indoor positioning method based on distance measurement information fusion, and relates to the technical field of communication methods of distance measurement. The method start from fusion of various kinds of measurement, and the method relying on Bluetooth and wireless network functions of a mobile phone is provided to realize precise indoor precision. Through a lognormal model, the received signal strength in Bluetooth and wireless network measurement is converted into distance information, a cost function of a distance difference is established, and a searching method is used to achieve the effect that precise positioning is realized by only two wireless network base stations. According to the method, two stations are selected from the stations relatively high in signal strength, so that the case that the lognormal channel model fails to depict a practical channel because of the factors of multipath, blocking and the like is avoided to the greatest extent; and the positioning method achieves a relatively good positioning effect under the condition of relatively low operation complexity.

The invention provides an indoor positioning system comprising a tag positioning module and a positioning evaluation module. The tag positioning module is used for positioning an unknown position tag so as to acquire a positioning result. The positioning evaluation module is used for establishing an evaluation index to evaluate the accuracy of the positioning result. When the tag positioning module performs positioning on the unknown position tag, positioning of the unknown position tag is completed by using a known position tag and a reader. The tag positioning module comprises a signal intensity calculation unit, a tag distance solving unit and a position solving unit. The signal intensity calculation unit is used for calculating the receiving signal intensity of the known position tag and the unknown position tag on each reader. The tag distance solving unit is used for solving the distance between the signal receiving intensity of the unknown position tag and the signal receiving intensity of the known position tag. The position solving unit is used for solving the position of the unknown position tag. Relatively accurate indoor positioning can be realized by the indoor positioning system.

The invention belongs to the field of indoor positioning, in particular to an indoor positioning and motion tracking method combined with magnetic field and inertia and an implementation system, wherein the system includes a data collection front end and a data processing server back end; the data collection front end includes collecting magnetic field distribution characteristic information and acceleration angular velocity Information data acquisition module, storage control module for storing and preprocessing data, and data sending module for data sending; data processing service terminal includes receiving module, data processing module, local server database and location Real-time display module for information and sports information. The system positioning principle of the present invention is simple, and the present invention uses the characteristic parameters of the space magnetic field environment where the positioned target is located to perform database recording and matching and real-time motion inertia parameter calculation, and realizes indoor areas where satellite signals cannot be completely covered or coverage signals are poor position.

The invention discloses a multi-target precise intelligent positioning and tracking method suitable for supervision places, which includes the following steps: collecting signal strength information of points of interest in the positioning area, and preprocessing the signal strength information to convert it into conforming depth The format of the LSTM network model; extract the local features of the preprocessed data to obtain a richer information representation of the original data, and input the deep LSTM network model to train the model; collect real-time location information of the supervision site, and pre-process the information Processing, converting it into a format that conforms to the deep LSTM network model; input the preprocessed data into the trained deep LSTM network model, and send the output of the deep LSTM network model to the fully connected layer to obtain a more differentiated representation form; finally use the linear regression layer to get the final location map, and output the location information. The method disclosed by the invention can effectively improve the positioning accuracy and improve the positioning speed.

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.

The invention discloses an audio-combined multi-sensing indoor positioning method, device, system and a storage medium. The positioning method comprises the steps that a comprehensive information processing platform obtains sensing data arranged in the indoor network nodes (the sensing data includes wireless signal, voice and / or human body sensing perception data); a 2D node graph is established based on sensing data; positioning and association setting are conducted on a voice collecting device and voice playing device corresponding to the sensing data of different areas based on the 2D node graph. The invention is advantageous in that the networking mode combining wireless signals, voice and human body sensing perception is adopted to achieve precise indoor positioning and precise small-range positioning; timely and orientation voice or display feedback can be realized by combining future intelligent voice interaction and application scene; the future indoor man-machine interaction experience can be enhanced.

The invention discloses an automatic deviation correction method based on an unmanned aerial vehicle in a parking lot scene. The method is to obtain an image of a vehicle driving on the road below through an unmanned aerial vehicle, combine the Hog features of the image, and use the SVM image classification model to classify the image into Class to a certain image type, and then map the image type to the current required deviation correction control command through the image type-deflection angle mapping table and deflection angle-control command mapping table, and send it to the vehicle, and the vehicle translates the control command into vehicle control Command and execute to realize vehicle deviation correction. This method relies on the UAV and its visual sensor, and does not require significant modification of the vehicle, which reduces the complexity and cost of the vehicle. In the process of deviation correction, from the UAV to collect the image to the target vehicle to execute the control command, there is no need to Manual participation can realize automatic deviation correction in the true sense.

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.