46results about How to "Precise navigation and positioning" patented technology

A mobile robot separating visual positioning and navigation method and a positioning and navigation system of the mobile robot separating visual positioning and navigation method comprise that corresponding site images are collected in real time above a target work site. The target work site is recognized in the site images. The recognition of the target work site comprises the recognition of target work site boundaries and barriers. According to a preset working mode, a corresponding working path is generated on the recognized target work site. According to the working path, a mobile robot is instructed to work. The mobile robot separating visual positioning and navigation method and the positioning and navigation system of the mobile robot separating visual positioning and navigation method are high in efficiency, accurate in positioning and navigation and low in cost, and simultaneously can efficiently achieve a path patrol type application and a traversal scan type application.

The invention relates to a robot indoor positioning and navigation system and method; the system comprises a main control computer and a mobile device which is provided with a robot, a first camera and a light generator; the first camera and the light generator are arranged on the robot; a coordinate system which can be displayed under light illumination is arranged on the indoor ground; the light generator is used for emitting set light to the indoor ground; the first camera is used for obtaining a displayed coordinate image and sending the image to the robot; the robot is used for identifying the coordinate image to obtain a current position digital coordinate of the robot in the indoor coordinate system and sending the current position digital coordinate to the main control computer; the main control computer is used for determining a current position of the robot according to the current position digital coordinate and the pre-stored coordinate system, and also is used for converting the target position into a target position digital coordinate according to the pre-stored coordinate system and generating a navigation signal according to the current position digital coordinate and the target position digital coordinate. The system makes the robot positioned and navigated accurately on the indoor ground.

The invention discloses a positioning navigation system and a vehicle. The system includes: a traffic information acquisition module, which is used for acquiring the traffic information of the road where the vehicle is located; a positioning industrial personal computer, which is used for generating first positioning information according to the traffic information and a 3D map stored in the positioning industrial personal computer itself; a central controller, which is used for acquiring vehicle navigation information according to the first positioning information. According to the positioning navigation system and the vehicle provided by the invention, during positioning navigation on the vehicle, the vehicle navigation information is acquired by means of the first positioning information obtained through the traffic information acquisition module and the prestored high precision 3D map, the positioning navigation is not affected by the strength of a network signal, and under some special conditions, like when the GPS signal of the network positioning navigation system is weak or the GPS signal is interrupted, the system still can achieve precise positioning navigation on the vehicle continuously, thus improving the precision of vehicle positioning navigation.

The invention discloses a system and method for correcting global positioning system (GPS) height data of national marine electronics association (NMEA) information. The system is based on a navigation / positioning device, and comprises a signal receiving module, a barometer and a processing module. The method comprises the following steps: receiving a GPS signal by the signal receiving module to generate initial NMEA information; the initial NMEA information comprises the GPS height data; the barometer is used for measuring ambient pressure and obtaining corrected height data; and the processing module is used for replacing the GPS height data in the initial NMEA information by the corrected height data, thereby, corrected NMEA information is formed. By utilizing the system and method for correcting the GPS height data of the NMEA information, as the more accurate corrected height data obtained by the barometer is adopted to replace the GPS height data with lower accuracy to form the corrected NMEA information with higher accuracy for positioning navigation, the positioning navigation is more accurate.

The invention relates to an urban road network model oriented to lane-level navigation positioning. The model mainly consists of three parts including road geographic information, building information layers on two sides of a road and a road plane lane line information layer. Meanwhile, the road plane lane line information layer in the model uses a Cardinal spline interpolation algorithm for three times to fit the plane lane line of a target road, so that a line shape has the characteristics of good smoothness, continuity and plasticity, a spline curve can more favorably adapt to large urban road curvature change, and the obtained parameter can more truly reflect the plane lane current situation of the urban road. By use of the urban road network model which is put forward by the invention, the attributes of a traditional road level digital map are expanded, the accuracy of the traditional road level digital map is improved, and the model has the advantages of complete amount of information, high accuracy, wide applicability and the like, the accurate, continuous and real-time navigation positioning of a vehicle can be realized under a complex urban traffic environment, and the requirements of the lane-level navigation positioning are met.

The invention discloses a positioning method via UWB (ultra wide band) radar networking in the process of autonomous taking off and landing of a UAV (unmanned aerial vehicle), the steps of which are: S1: conducting UWB radar networking; arranging an airborne UWB radar, and arranging a plurality of datum points on the airport ground to constitute a UWB radar net; S2: conducting UAV coordinate position calculation via the UWB radar net. The method has the advantages that the scope of application is wide, the reliability is good, and autonomous taking off and landing positioning can be finished in various complex environments.

The invention belongs to the technical field of multi-sensor fusion positioning navigation, particularly relates to a vehicle turning track two-way calculation method, system and device, aiming to solve the problem of low track calculation precision before vehicle turning in the prior art. The vehicle turning track two-way calculation method comprises the steps: acquiring picture feature points and sensor measurement values, and storing and updating a sliding window; carrying out system initialization; when the new image is added into the sliding window, optimizing parameters such as sensor pose and the like until the vehicle turns around; when the new image is added into the sliding window, optimizing parameters such as the pose and offset of the sensor until the offset estimated value ofthe accelerometer converges; when the new image is added into the sliding window, optimizing all parameters; and opening up a reverse calculation thread, and calculating a track before turning according to a time sequence from back to front from the current position. According to the vehicle turning track two-way calculation method, track optimization after turning is carried out multiple times through the forward thread, and the reverse thread is opened up to calculate the track before turning, and the high-precision track before and after turning can be obtained, and accurate positioning and navigation without GPS can be achieved.

The invention discloses an accurate-positioning navigation system of an autonomous mobile device. The accurate-positioning navigation system is characterized by comprising an RFID (Radio Frequency Identification Device) and infrared transmitting device and an RFID and infrared receiving device, wherein the RFID and infrared receiving device is arranged in the autonomous mobile device, the RFID and infrared transmitting device is arranged at a positioning point, and the distance between the RFID and infrared transmitting device and the RFID and infrared receiving device is less than 200m. According to the invention, the defects that the positioning distance of the traditional single infrared device is small and the positioning is not easy to be processed are remedied; and due to the integration of the RFID and infrared rays, the quick and accurate positioning can be carried out, and the accurate-positioning navigation system of the autonomous mobile device, disclosed by the invention, has the advantages of simple structure, accurate data, high processing speed, low requirement on a hardware, low cost, high reliability as a rotating component is free and capability of ensuring the free motion and accurate positioning and navigation of the autonomous mobile device within a covered range.

The invention is applicable to the technical field of robot navigation, and provides a positioning method and positioning device of a mobile robot, the mobile robot and a computer readable storage medium. The method comprises the steps that an image collected by the mobile robot is input into a trained convolutional neural network for target detection; if it is determined that the image contains atarget object based on a result of the target detection, a target frame of a target object is obtained in the image; the height of the target frame is calculated according to the pixel coordinates ofthe target frame; and a target distance is calculated according to the height of the target frame, a preset focal length and a preset height of the target object. By means of the method, the mobile robot can accurately navigate and position in various scenes.

The invention discloses a substation fire-fighting robot autonomous operation control method and system, and the method comprises the steps: building a substation three-dimensional data model, arranging wireless AP equipment at a plurality of fire-fighting medium supply points in a substation, and constructing a wireless network in the substation; positioning the fire-fighting robot according to the wireless network; determining the position of the optimal fire-fighting medium supply point, and planning the optimal path from the fire-fighting robot to the abnormal equipment; controlling the fire-fighting robot to automatically run to the position of a fire-fighting medium supply point, and completing automatic butt joint of fire-fighting hoses; and controlling the fire-fighting robot to automatically run near the abnormal equipment, and automatically calculating the optimal spraying angle and spraying flow according to the position of the ignition point. The whole set of closed-loop operation process that the substation fire-fighting robot finds a fire, arrives at a place, is automatically connected with fire-fighting medium supply equipment, selects an optimal operation position and automatically extinguishes fire can be achieved, and the blank in the technical field of automatic fire-fighting operation of the substation robot is filled.

The invention discloses a digestive endoscopy navigation method and system. The method comprises the following steps: fusing key points of two frames of images, and performing offline marking by utilizing displacement vector distribution of the fused image to obtain a truth value of training data; building a twin neural network to carry out supervised pre-training; and estimating the position coordinate of the next frame of the lens of the digestive endoscopy by utilizing the displacement vector distribution output by the trained model, and further outputting a complete movement track to realize the navigation of the digestive endoscopy. The self pose and the motion direction of the digestive endoscope can be accurately recognized, the motion track is grasped on the whole, and the adaptability is high.

The invention discloses a cruiser and a navigation and obstacle avoidance method thereof. The cruiser comprises a cruiser body as well as a navigation and obstacle avoidance assembly and public devicearranged on the cruiser body. The navigation and obstacle avoidance assembly comprises different types of sensors, and is used to collect ambient information in the surrounding of the cruiser body and transmits the information to the public device. The ambient information includes pedestrian or obstacle information in the surrounding of the cruiser at least. The public device carriers out navigation positioning, route planning, obstacle avoidance or corresponding dynamic decision according to the obtained ambient information. The different type of sensors are combined in use, a lot of ambientinformation in the surrounding of the cruiser is collected, the navigation positioning and route planning precision of the cruiser is improved, and the cruiser can avoid obstacles and makes dynamic decisions safely flexibly.

The invention discloses a method for positioning and navigation based on two-dimension code recognition. A surrounding environment of a location, where a mobile terminal is, is shot by the mobile terminal and is combined with an internet for recognition to obtain location information, and the operation is simple. The obtained location information is manufactured into a two-dimension code, and the two-dimension code is sent to a processing terminal via an internet of things. The two-dimension code is directly manufactured through the terminal without the need for other operation, so that the process is simplified. A processing terminal recognizes the received two-dimension code and obtains information data of the location where the mobile terminal is. The processing terminal creates navigation according to the obtained location information of the location and sends the navigation to the mobile terminal. The processing terminal creates the navigation according to the information data of the location, so that the mobile terminal can conveniently and quickly reach a place where the mobile terminal wants to go by itself according to the navigation, or the accurate location where the mobile terminal is can be quickly positioned. Relatively accurate positioning and navigation is realized via two-dimension code recognition.

The embodiment of the invention provides a facial surgery positioning and navigation method and a facial surgery positioning and navigation device. The facial surgery positioning and navigation methodcomprises the following steps of: acquiring coordinates of path track points of a facial surgery in a first vision reference frame coordinate system, wherein a first vision reference frame is fixed at a preset position of a face; acquiring relative positions and postures of the first vision reference frame coordinate system and a second vision reference frame coordinate system in the positioningand navigation device, and acquiring the coordinates of the path track points in the second vision reference frame coordinate system according to the relative positions and postures; acquiring the coordinates of the path track points in a robot base coordinate system according to the relative positions and postures of the second vision reference frame coordinate system and the robot base coordinate system, so that a robot can achieve operation positioning and navigation. According to the facial surgery positioning and navigation method, surgical path track points can be quickly and accuratelyconverted to the robot base coordinate system in the positioning and navigation device, so that high-precision and accurate positioning operation positioning and navigation are achieved.

The invention discloses an indoor positioning navigation method based on image space and panorama assistance. The method includes the steps: laying control points, and constructing a world coordinatesystem; secondly, correcting a camera, and acquiring indoor sequence images; thirdly, extracting and matching characteristic points; fourthly, eliminating the characteristic points; fifthly, calculating characteristic point space coordinates; sixthly, acquiring indoor panorama images; seventhly, indoor positioning; eighthly, indoor navigating. The method is simple in steps, reasonable in design, good in use effect, low in cost and high in practicability, positioning and navigation are accurate, auxiliary devices are decreased, and positioning accuracy is improved.

The invention discloses a disposable superfine deformed neuroendoscope system which comprises a deformed imaging module, a driving image processing template, a host machine and a high-definition display screen, wherein the deformed imaging module is connected to the driving image processing module by virtue of an insert; the driving image processing template is connected to the host machine; the host machine is then connected to the high-definition display screen; the deformed imaging module comprises an outer tube, a deformed imaging element and a drainage suction tube channel; the deformed imaging element and the drainage suction tube channel are arranged in the outer tube; the deformed imaging element, which is of a crescent structure, is composed of a superfine endoscope and an optical fiber distribution area; and the optical fiber distribution area is composed of a plurality of optical fibers. The superfine deformed neuroendoscope system, when applied to treatment of a bleeding stroke surgery, is small in minimally invasive operating hole, small in injury, high in hematoma clearance rate, precise in navigation and positioning and simple to operate, the neuroendoscope system is disposable, and the neuroendoscope system can control active bleeding and can prevent cross infection of bacteria; and the neuroendoscope system, matched with a transparent sheath, is applied to a visual surgical operation.

The invention belongs to the technical field of vehicle locating and navigating which aims at locating and navigating for vehicle smooth trip and providing reference data for anti-collision and automatic drive of vehicles. The invention adopts the technical schemes that a locating navigating guide is arranged on the road every a plurality of meters; a guide locating avigraph is arranged on the vehicle; the locating navigating guide is communicated and contacted with the guide locating avigraph through wireless. Neighboring locating navigating guides are kept to be contacted with each other in relay communication. All the locating navigating guides are contacted with a locating navigating guide management station; the vehicle tells the trip destination to the locating navigating guide management station through the locating avigraph and the locating navigating guide; the locating navigating guide management station designs out a best traffic line for vehicles, and locates as well as navigates for vehicles through the locating navigating guide and the locating avigraph. The invention is applied to the locating, monitoring and navigating of the vehicles.

The invention provides a method for providing signals for vehicle-mounted inertial navigation based on a vehicle diagnose interface. The vehicle speed, the current gear status information and the like are acquired by a vehicle-mounted automatic diagnostic system, a vehicle speed pulse signal line and a vehicle backing signal line are replaced, a vehicle speed value is acquired after a signal of the vehicle-mounted automatic diagnostic system is analyzed, and compared with vehicle speed acquisition, the pulse error can be reduced; the vehicle backing signal is numerical and can be used for programming directly; the Baud rate is 500kbps, an inertial navigation sends a request (communication protocol of the vehicle speed), the vehicle-mounted automatic diagnostic system receives the request and can respond at regular intervals, the byte at the designated position in the responded communication protocol is the vehicle speed value, and the issue of positive and negative values of the vehicle speed is solved through the gear status of the vehicle. The method has the advantages of reducing the technical difficulty, no requirement for vehicle refitting and achieving safety and rapidness in installation.

The invention provides a positioning and navigation method, a positioning and navigation device and a storage medium, wherein the method comprises the following steps: performing primary positioning for a target carrier in a monitoring range, calculating motion information of the target carrier under a geographic coordinate system, and converting the motion information into the motion informationunder a world coordinate system, obtaining the current position coordinate and speed of the target carrier according to the converted motion information, obtaining motion trail according to the current position coordinate and the speed, acquiring beacon position information of a beacon preset in the monitoring range, obtaining relative position data between the target carrier and the beacon according to the beacon position information and the current position coordinate of the target carrier, and regulating the motion trail of the target carrier according to the relative position data. According to the method and the device provided by the invention, the current position coordinate, the speed and the motion trail of the target carrier in the geographic coordinate system are obtained through calculation of the motion information of the target carrier, the motion trail of the target carrier is regulated according to the relative position of the target carrier and the beacon, and thus, positioning and navigation of the target carrier can be more accurate.

The invention discloses a supermarket navigation system and method. The supermarket navigation system includes non-repetitive identification lines printed on a wall and / or the shelf surface and is provided with a display screen, an operation interface, two cameras at a certain angle to each other horizontally placed on a shopping cart, and a control system, and the control system can obtain corresponding position coordinates through identifying coordinates and / or commodity information. According to the supermarket navigation system and method, the two cameras horizontally placed on the shopping cart shoot and identify the identification lines respectively, thus location of a person position is realized, then connection between the location of the person and the location of a target commodity is established, navigation working in a supermarket can be realized, the supermarket navigation system and method help shoppers find target commodities quickly, and the shopping efficiency is improved.

The invention discloses an Internet of Things remote control vehicle navigation integrated machine which comprises a main controller arranged in a housing, and an audio module, a negative ion generating module, a display module, a navigation module, a power supply module, a remote control module, a wireless communication module and a GSM module which are connected with the respectively main controller. The Internet of Things remote control vehicle navigation integrated machine disclosed by the invention is precise in navigation and positioning, capable of generating negative ions to reduce fatigue of a driver, preventing theft, achieving remote control, detecting real-time vehicle faults, and exchanging data with a remote external device mutually, so that the machine has the wide market value and application prospect.

The invention relates to a navigation and location system and method. The navigation and location system includes multiple digital television transmitting stations which all transmit digital television signals carrying navigation information, and a receiver which receives the digital television signals of the digital television transmitting stations, measures the pseudo distance from each digital television transmitting station according to the corresponding digital television signal, and processes the measured pseudo distances through a three-satellite location algorithm to get navigation and location information. Compared with the prior art, the system has high signal intensity and strong anti-interference ability; and when the indoor environment or the satellite signal is blocked, the receiver can continuously receive digital television signals carrying navigation information and carry out navigation and location through the digital television signals carrying navigation information, and thus, the precision of navigation and location is enhanced.

The invention discloses an automobile navigation method, system and device. The method comprises the steps that: the automobile navigation device captures a view field image directly in front of an automobile according to the obtained current location information of the automobile, lane information, automobile speed information, and the like, performs positioning correction on the obtained currentlocation information of the automobile and the like according to the captured view field image directly in front of the automobile, and transmits the current location information of the automobile subject to the positioning correction to AR glasses in a character string stream form via a Bluetooth transmission mode, and the AR glasses perform reverse solution on the current location information of the automobile that is transmitted in the character string stream form via the Bluetooth transmission mode to obtain the current location information of the automobile, and perform navigation according to the current location information of the automobile obtained by the reverse solution. By means of the above manner, accurate navigation and positioning of the automobile can be realized, and automobile navigation path errors can be avoided.

The invention provides a smartphone navigation system which comprises a GPS (global positioning system) device, a navigation device, a GSM (global system for mobile communication) communication device and a GSM processing device which are arranged in a smartphone. The smartphone navigation system is characterized in that both the GPS device and the GSM communication device are connected with the GSM processing device; the navigation device can read information of the GPS device and display on a smartphone screen, and comprises a voice prompt device and a route calculating device. According to the invention, the smartphone and the navigation device are combined together very well, and a more accurate, smarter, more convenient smartphone navigation system is provided.

The invention provides a navigation system and method based on shelf identifications, the navigation system based on shelf identifications comprises a control server, an inventory area, access equipment and fixed shelves, the fixed shelves are arranged in the inventory area, roadways for the access equipment to move are formed between the fixed shelves, and the access equipment is arranged on the control server. The fixed goods shelf is provided with a goods shelf identifier extending along the roadway; the control server is configured to determine a target storage position and target access equipment on a target fixed goods shelf and send a moving instruction to the target access equipment; and the target access equipment is configured to move to the target storage position according to the goods shelf identifier in a target roadway corresponding to the target fixed goods shelf in response to the moving instruction. In the process that the target access equipment moves in the target roadway, the effect of accurate navigation and positioning is achieved according to the goods shelf marks on the fixed goods shelves, and the construction cost is reduced.

The invention discloses detection equipment and an optical detection method. The detection equipment comprises a functional outer box, a damping rack, a platform module and an optical detection device. The platform module comprises a transferring device and an air floating platform. The transferring device is arranged on the air floating platform in a crossing mode so as to transfer a to-be-detected piece between the feeding port and the detection station. The optical detection device comprises a main detection camera assembly, a redetection camera assembly and a positioning camera assembly. The optical detection method comprises the steps of feeding and initial positioning, to-be-detected piece feeding, detection positioning, map matching and initial detection, re-detection to obtain a detection result, detection completion and material returning. According to the equipment, the detection method is executed through the main detection camera assembly, the redetection camera assembly and the positioning camera assembly, positioning, initial detection and redetection of to-be-detected pieces of different specifications are achieved, positioning and navigation are accurate, the vibration absorption performance of the rack is good, the equipment cost is low, the detection efficiency and precision are high, the function integration degree of the whole machine is improved, and the whole machine is low in fault rate and convenient to maintain.

The invention relates to a deep-sea landform joint matching aided navigation and positioning system and a deep-sea landform joint matching aided navigation and positioning method. The system comprises an underwater topography and landform basic database unit, an inertial navigation unit, a sounding side-scan sonar, an underwater topography and landform joint matching unit and a combined navigation information fusion unit which are arranged in a deep sea vehicle; the underwater topography and landform joint matching unit is connected with the underwater topography and landform basic database unit, the inertial navigation unit, the sounding side-scan sonar and the combined navigation information fusion unit, and the combined navigation information fusion unit is connected with the inertial navigation unit. According to the invention, the accuracy of underwater navigation and positioning can be improved, and deep-sea accurate matching navigation and positioning can be realized.

The invention relates to a method for calculating coordinates of an intersection point D of an optical axis and a celestial surface based on a star sensor. The method comprises the steps of establishing a space rectangular coordinate system under a celestial coordinate system, performing translation or rotation transformation on the space rectangular coordinate system to enable the space rectangular coordinate system to coincide with a star sensor coordinate system to obtain a transformation relationship between the two coordinate systems, and representing a coordinate expression of the pointD in the celestial coordinate system by using each parameter; obtaining the relationship among the coordinates according to the cosine law, and obtaining an approximate expression of the distance f from the projection center to the projection point on the star sensor light-sensitive surface by using a Taylor expansion formula; substituting the approximate expression into the coordinate expressionof the point D in the celestial coordinate system to obtain a celestial coordinate approximate value expression of the point D; performing error analysis in combination with a median theorem, and obtaining a fixed star selection standard to further improve the coordinate precision of the point D. The invention aims to establish a mathematical model, solve the coordinates of the intersection pointD of the optical axis and the celestial surface, enables coordinates of the point D to be accurate through an optimization algorithm, and improve the attitude measurement precision of the star sensor.

The invention discloses a WiFi-based indoor positioning and navigation method for large-scale shopping malls. Firstly, a mobile terminal with an AP signal scanner scans the AP signals of wifi tags around to obtain the MAC address of the scanned AP signal; The intensity of the signal is sampled and measured to obtain measurement data; calculate the positions of all scanned Wifi tags according to the MAC address of the AP signal scanned in step 1 and the measurement data in step 2, and then use the positioning algorithm to locate. The specific process is: Estimation The location of the Wifi tag of the next location that the mobile terminal will arrive at; predict the location of the Wifi tag of the next location that the mobile terminal will arrive at; and then perform positioning according to the estimated location and the predicted location. The present invention dynamically predicts node positions, filters out RPs with no similar RSS vector at the label from the map to find the nearest neighbor, reduces the time and calculation complexity of the KNN algorithm, and greatly improves the positioning accuracy.

The invention relates to a method for calculating coordinates of an intersection point D of an optical axis and a celestial surface based on a star sensor. The method comprises the steps of establishing a space rectangular coordinate system under a celestial coordinate system, performing translation or rotation transformation on the space rectangular coordinate system to enable the space rectangular coordinate system to coincide with a star sensor coordinate system to obtain a transformation relationship between the two coordinate systems, and representing a coordinate expression of the pointD in the celestial coordinate system by using each parameter; obtaining the relationship among the coordinates according to the cosine law, and obtaining an approximate expression of the distance f from the projection center to the projection point on the star sensor light-sensitive surface by using a Taylor expansion formula; substituting the approximate expression into the coordinate expressionof the point D in the celestial coordinate system to obtain a celestial coordinate approximate value expression of the point D; performing error analysis in combination with a median theorem, and obtaining a fixed star selection standard to further improve the coordinate precision of the point D. The invention aims to establish a mathematical model, solve the coordinates of the intersection pointD of the optical axis and the celestial surface, enables coordinates of the point D to be accurate through an optimization algorithm, and improve the attitude measurement precision of the star sensor.