70 results about "Real-time locating system" patented technology

The invention discloses a high-precision real-time positioning system and method for positioning personnel based on multi-mode fusion. The system comprises a multi-source data acquisition module, an intelligent data processing module, a fusion positioning model construction module and a positioning result application module, provides visual monitoring, trajectory analysis and scene customization functions, and supports flexible expansion through modular design. According to the method, satellite positioning, Bluetooth beacon and inertial navigation technologies are integrated, the weight is dynamically adjusted in combination with an adaptive weighted fusion algorithm, and a fusion positioning model supports outdoor (satellite dominant + EKF calibration, the precision being 2-5 meters) and indoor (beacon dominant + fingerprint matching, the precision being lt); according to the invention, intelligent switching between three modes (inertial navigation + ZUPT correction) and signal loss (1 meter) is realized, data noise is optimized by using Kalman filtering, and high-precision real-time positioning in indoor and outdoor complex scenes is realized. According to the invention, the problems of insufficient precision, poor environmental adaptability and weak expansibility of a single positioning technology are solved, and the comprehensive performance of the positioning system is significantly improved.

The invention provides a magnetic suspension underwater robot path following control method, a magnetic suspension underwater robot path following control device, magnetic suspension underwater robot path following control equipment and a medium, and relates to the field of underwater robot path following control. The motion control bottleneck of a traditional underwater robot in a complex environment is broken through. In the aspect of dynamic modeling, interaction between magnetic force and fluid resistance is considered, and underwater motion characteristics of the robot are accurately described. A nonlinear control strategy combining the Lyapunov stability theory and sliding mode control is adopted, and a trajectory tracking controller with high robustness is designed to ensure that the robot can stably and efficiently operate along a predetermined trajectory in a complex underwater environment. The maneuverability and the operation precision of the underwater robot are remarkably improved, a more reliable solution is provided for the fields of ocean exploration, resource development, environment monitoring and the like, and huge application potential and market value are shown.

Provided are a system and method for coordinating dual wireless communications protocols when implementing a time difference of arrival (TDOA) framework for ranging between nodes. A first of the protocols (e.g., BLE) can be used for transmission of synchronization and TDOA schedules that prescribe synchronization and TDOA frames. The synchronization and TDOA frames can then be executed according to a second of the protocols (e.g., UWB), thus exemplifying an efficiency in energy consumption owing to an absence of transitioning between the first and second protocols transmissions throughout the schedules.

Disclosed is a method and apparatus for performing, by a management platform operatively connected to both a video surveillance platform and a positioning platform via network connectivity, at least one among image processing and video analytics on obtained images or video related to a detected asset tag to provide user awareness related to a location or movement of the asset tag in a defined environment.

The invention discloses a component installation real-time positioning system and method based on a laser benchmark, and the method comprises the steps: laying a laser benchmark system according to a construction lofting line, projecting a plurality of laser beams in an arch axis direction and an annular direction, and forming a space reference in an installation space; arranging an identification feature set at the arch part, the haunch, the arch foot connecting part and the node, and establishing a corresponding relation between the identification code and the component truss number, the node type and the geometric reference plane; continuously sampling the spatial geometrical relationship between the laser reference system and the identification feature set during the unfolding, hoisting and in-position period of the component to form an observation data flow; and inputting the observation data stream into the attitude resolving model, and combining the bunch constraint, the shape constraint and the hinge continuous constraint by adopting a factor graph and a graph optimization algorithm to solve the spatial attitude of each truss component and the overall arch frame. According to the method, a closed-loop laser reference and multi-truss attitude resolving system is constructed, and continuous positioning and overall contour controllability of component installation under complex working conditions are achieved.

Real-time location systems and beacons are used to facilitate operating a materials-handling vehicle in compliance with rules of the road. Materials-handling vehicles may include a processor operably coupled to at least one vehicle system and a receiver communicatively coupled with the processor and configured to receive signals from a real-time location system and from one or more beacons that are located at known positions in an environment in which the vehicle operates. The vehicle is programmed to receive a signal from the real-time location system in response to entering a zone in the environment, communicate with a beacon associated with the zone, determine a position of the vehicle in the zone, and to perform at least one of modifying an operating characteristic of the vehicle system and operating the vehicle system based on the determined position of the vehicle and a rule of the road.

Real-Time Locating System (RTLS) enabled human to automated vehicle interaction apparatus and methods. Systems may include a control system configured to communicate with RTLS transceivers and anchors within an environment, and autonomous vehicles (AVs) equipped with sensors and RTLS communication transceivers. A control system determines a real-time location of RTLS transceivers (“Tags”) and provides navigation, task, and behavioral instructions to AVs based on location data. RTLS transceivers can be worn by humans or attached to objects, machines, equipment, floorspace, storage bins, or other destination, thereby enabling AVs to locate and travel to humans, objects, or other destination points, perform tasks based on location data, and dynamically alter actions and behaviors. Locating and traveling to destination points may include dynamic destination points based upon movement of a destination human or item. User interactions via RTLS tags may trigger specific actions, enhancing human-automated vehicle collaboration and operational efficiency in diverse environments.

An acoustic location determination system is disclosed. The system includes one or more transmitting devices and one or more mobile devices. The transmitting device includes a first transducer configured to transmit first acoustic signals having a first frequency, and a second transducer configured to transmit second acoustic signals having a second frequency. The transmitting device further includes a beacon device configured to transmit beacon data via a short-range wireless communication technique. The transmitting device further includes one or more control devices configured to select the first or second acoustic signals based at least in part on one or more operating capabilities of one or more mobile units associated with the real-time locating system. The one or more control devices are further configured to cause transmission of the selected acoustic signals and the beacon data.

The invention discloses a real-time positioning system and method of an underwater glider and the underwater glider, and belongs to the technical field of underwater detection equipment. The real-time positioning system comprises an acoustic positioning system, an inertial navigation unit, an electromagnetic ocean current meter and a control unit. The acoustic positioning system is composed of an ultra-short baseline range finder electronic cabin and an ultra-short baseline electroacoustic transducer and used for emitting acoustic signals and carrying out underwater position calculation through a tracking ship. The inertial navigation unit comprises a gyroscope, an accelerometer and a magnetometer; the electromagnetic ocean current meter is used for acquiring ocean current speed data; and the control unit is used for receiving and fusing data of the acoustic positioning system, the inertial navigation unit and the electromagnetic current meter, and optimizing real-time position estimation of the underwater glider through a fusion algorithm based on Kalman filtering. According to the system, the path and the track of the underwater glider for executing the observation task can be accurately obtained, and the ocean observation and detection accuracy is greatly improved.

The invention relates to the field of virtual reality, and discloses a multi-user virtual reality experience system, comprising a real-time positioning system; the real-time positioning system is used for capturing space coordinates and action postures of wearing equipment of a plurality of users, and realizing synchronous response of a virtual character and a real action in real time according to action information and position tracking information of each user; the real-time positioning system is also used for driving the virtual role of each corresponding user to move in the virtual scene; a multi-modal environment simulation component; the multi-mode environment simulation assembly is used for simulating various physical environment changes in a virtual scene; a space base; the space construction assembly dynamically adjusts a space topological structure through an electric sliding rail system to restore movement and interaction of a user in a virtual environment in a real environment; the scene generation system generates a virtual scene matched with the user position, the environment and the wall layout in real time. The method has the following effect: the technical problem of large space mapping error in multi-user collaborative interaction is solved.

Disclosed are methods and systems for tracking a plurality of objects configured to be transported by an object transport vehicle. The method includes determining a location of each object. A geofence is generated to surround a portion of the vehicle based on signals received from wireless devices affixed to a front portion and a rear portion of the vehicle. The geofence shapes varies based on a number of signals received. A confidence score is calculated for each object based on a distance of each object from a point within the geofence. A higher score is assigned to objects closer to the point than to objects farther from the point. The score of one object is increased if the one object is inside the geofence for a predetermined percentage of a time interval. The one object is associated with the vehicle if the score exceeds a threshold.

The present invention discloses a rail robot and a real-time positioning system thereof, wherein the rail robot comprises a robot body and a light-shielding sleeve arranged on the robot body, the light-shielding sleeve is axially slidably arranged on the robot body, a color sensor is fixedly installed in the light-shielding sleeve, an elastic member is arranged at the first end of the light-shielding sleeve, the second end of the light-shielding sleeve is tightly pressed against the rail through the elastic member, and the color sensor is used to collect color information on the rail at the real-time position of the rail robot and color information at the starting position. The rail robot positioning method of the present invention is more accurate and more convenient, and the positioning effect can be achieved by starting at any position. In addition, through the effects of the elastic member and the light-shielding sleeve arranged on the color sensor, the collection effect of the color sensor is better, the influence of the external environment is avoided, and the accuracy is higher.

The invention discloses an unmanned vehicle geomagnetic / odometer fusion real-time positioning system based on adaptive sequence particle filtering, and belongs to an unmanned vehicle positioning technology. The method is provided for solving the problems of poor anti-noise capability, low calculation efficiency and the like of geomagnetic navigation. According to the technical scheme, the three components are added into the geomagnetic navigation method, the number of features used in the navigation process is increased, and positioning errors are reduced. In the navigation process, the weight of each feature is calculated in real time based on the stability of each component, and the contribution degree of each feature during navigation is adjusted. Geomagnetic positioning is carried out based on adaptive KLD sequence particle filtering, and the number of particles is dynamically limited in the positioning process, so that high-efficiency geomagnetic positioning is realized. Real-time weight calculation is carried out based on the stability of each component, and the contribution degree of each component in the subsequent positioning process is dynamically adjusted; and components which are seriously interfered are screened out through global weights, so that the calculation amount of a subsequent positioning process is effectively reduced while the positioning precision is not influenced, and the calculation efficiency is improved.

The present development relates to a method for managing the logistics of a customer service area, such as an operating room, which improves the process of scheduling procedures and the management of resources assigned to the allocation of a customer service area (0). This is achieved through the use of technological surveillance tools. In particular, the disclosed method takes into consideration the use of electronic identification elements, such as, for example, a radio frequency system (RFID tag), a real-time location system (RTLS tag), or a Bluetooth beacon system, linked to a user or assistant, a supply, or equipment. This information allows to establish a status of the service provision and to carry out a statistical analysis that allows to obtain patterns in terms of to the interactions between staff, supplies and equipment in relation to a service area, historically.

A healthcare communication system includes a voice communication badge to be worn or otherwise transported by a caregiver. The voice communication badge has a display, a microphone, buttons that are used to select or alter first information appearing on the display, and circuitry including a wireless fidelity (WiFi) module configured to (i) send and receive long range wireless signals to and from one or more of the wireless access points, and (ii) send and receive short range wireless signals. The circuitry also includes a location module to emit beacon signals that are received by at least one receiver of a real-time locating system which includes a locating computer that determines a location of the voice communication badge based on the beacon signals.

Provided are a system and method for a real-time location system (RTLS) optimizing manner of establishing node location, and specifically, beacon location according to which positioning for a tag may be determined. To realize the optimization, beacons are arranged in “pods” and are led in their communications by a pod master beacon (MB) such that others of the pod beacons are slaves, i.e., slave beacons (SBs) to the MB. The communications are sequenced according to serialized transmit and receive staging among the MB and SBs resulting in self-localization of the pod beacons. The staging enables the MB to determine and accumulate various MB-SB and SB-SB measurements from which a mapping of the pods may be resolved.

A healthcare communication system includes a voice communication badge to be worn by a caregiver. The voice communication badge has a display, a microphone, buttons that are used to select or alter first information appearing on the display, and circuitry including a wireless fidelity (WiFi) module configured to (i) send and receive long range wireless signals to and from one or more of the wireless access points, and (ii) send and receive short range wireless signals. The circuitry also includes a location module to emit beacon signals that are received by at least one receiver of a real time locating system which includes a locating computer that determines a location of the voice communication badge based on the beacon signals.

The invention provides a UWB-based special operation process management alarm method and system, and relates to the field of special operation management. The method comprises the steps of setting a dynamic electronic fence corresponding to each operation flow in a model according to a plurality of operation flows of a special operation permission application based on a management and control area map model; according to a plurality of operating personnel applied by the special operation permission, binding each operating personnel and a corresponding operation process through the unique identifier of the operating personnel; receiving work ticket signing information, and obtaining a first real-time position of a worker corresponding to the work ticket based on a UWB real-time positioning system; and calling an operation process bound by the operator and a corresponding dynamic electronic fence, judging whether the operator triggers an alarm regulation or not according to the first real-time position, and when the operator triggers the alarm regulation, pushing alarm information to a management center and mapping the alarm information to the operator. According to the invention, full-process management and control of the special operation process and personnel tracking and positioning precision in special operation process management are effectively realized.

A projection system for a material handling vehicle includes a real-time location system tag, a projector, and a control unit. The RTLS system detects a location of the material handling vehicle. The projector can be coupled to a motorized projector mount to project a projection image on a surface. The control unit receives system information including: the location and speed of the material handling vehicle, a set of rules specific to a facility where the material handling vehicle is operating, and a location of one or more other assets in the facility. The control unit determines if a projection image is required using the received system information and select a projection image, if required, based on the received information. The control unit can determine a location to project the projection image and move the motorized mount to move the projector to a position corresponding to the determined projection image location.

There is provided a technique of operating a real-time locating system (RTLS) in an indoor environment. The technique comprises: obtaining from a UD a timestamped dataset informative of ID of a tagged object registered by the UD in its proximity, of ID of the UD and of ambiguous sample electromagnetic pattern (SEP) registered by the UD; and defining a location of the tagged object at a point-in-time in accordance with the location of the UD, the point-in-time corresponding to a timestamp of the dataset. The location of the UD is defined using a SEP map informative of associations, at point-in-time, between the SEPs and locations thereof. The SEP map is continuously generated by processing timestamped “UD reports” continuously received from a plurality of UDs, each “UD report” comprising data informative of a respectively registered SEP and a unique identification of a reported UD (IDUD).

The invention provides a high-density storage article real-time positioning system and method based on 2.4 G wireless communication, and relates to the technical field of wireless communication.The system comprises a sensing layer, the sensing layer transmits collected wireless environment information to an active decision-making layer, the active decision-making layer analyzes the received information, generates a coping strategy and then transmits the coping strategy to an execution layer, and the execution layer sends the coping strategy to a server; according to the method, a'sensing-decision-execution-optimization 'closed loop is constructed, conversion from passive response to active prevention is realized aiming at 2.4 G frequency band interference, the system can prospectively detect and identify an interference source, an avoidance strategy is generated through intelligent decision before the interference takes effect, precision is synchronized, and communication parameters are seamlessly switched in the whole network; and meanwhile, the system has a self-learning capability, and the accuracy and robustness of interference resistance are continuously improved by continuously evaluating the effect and performing feedback optimization, so that the continuity and stability of a positioning signal and the overall efficiency of the system are ensured in a complex electromagnetic environment.

A real-time locating system determining a location of a target object located in an interior cabin or an environment surrounding a vehicle includes an ultra-wide band (UWB) sensor network including one or more anchors mounted to the vehicle that are in wireless communication with a tag mounted to the target object. The real-time locating system also includes one or more controllers that are part of the vehicle that support a specific connectivity standard that allows two or more Internet of Things (IoT) devices to communicate with one another. The real-time locating system also includes one or more sub-network controllers in electronic communication with the one or more controllers or, alternatively, one or more bridge controllers that are part of the vehicle and are in electronic communication with the one or more controllers by a vehicle communication network.

This invention discloses a real-time positioning system and method for component installation based on a laser reference. The method includes: setting up a laser reference system according to the construction layout line; projecting multiple laser beams along the arch axis and circumferential direction to form a spatial reference within the installation space; setting up a set of identifying features at the arch, arch waist, arch foot connection points, and nodes; establishing a correspondence between the identifying codes and the component number, node type, and geometric reference surface; continuously sampling the spatial geometric relationship between the laser reference system and the identifying feature set during component unfolding, hoisting, and positioning to form an observation data stream; inputting the observation data stream into an attitude calculation model; and using factor graph and graph optimization algorithms to combine beamline constraints, shape constraints, and hinge continuity constraints to obtain the spatial attitude of each component and the overall arch frame. This invention constructs a closed-loop laser reference and multi-component attitude calculation system, realizing continuous positioning and overall contour controllability of component installation under complex working conditions.

This invention relates to the field of medical device technology and discloses a three-dimensional real-time positioning system and method for distal intramedullary nail locking. The three-dimensional real-time positioning system for distal intramedullary nail locking includes an optical intelligent electro-rotation device, a binocular camera, an intramedullary nail positioning frame, and a computing terminal. The intramedullary nail positioning frame is rigidly connected to a first optical sensor and rigidly connected to the intramedullary nail within the target area. The computing terminal is wirelessly connected to the optical intelligent electro-rotation device, the binocular camera, and the intramedullary nail positioning frame. The optical intelligent electro-rotation device includes an electro-rotation body, an electro-rotation head, and a second optical sensor. The second optical sensor is rigidly connected to the electro-rotation body. This invention significantly improves the positioning accuracy of distal intramedullary nail locking.

The invention discloses a tunnel real-time positioning system and method based on map matching. The system comprises a mobile positioning terminal, a plurality of positioning anchor nodes, a switch, an edge gateway, a positioning resolving module and a management visualization platform. The plurality of positioning anchor nodes are arranged in a tunnel and are in communication connection with the edge gateway through the switch; the mobile positioning terminal comprises a processor, and an inertial observation module, a wireless module and a battery which are connected with the processor; the edge gateway is used for observing data and forwarding the data to the positioning resolving module and the management visualization platform; the positioning resolving module comprises a positioning engine and a map fingerprint database, the positioning engine executes map matching and data fusion operation on inertia priori and wireless observation data reported by the mobile positioning terminal based on tunnel topology and wireless fingerprint statistical data in the map fingerprint database, and outputs a positioning result; and the positioning result is issued to the management visualization platform for real-time display. According to the invention, the positioning precision in the tunnel environment can be effectively improved.

A wireless real time positioning method and system, the system comprises multiple mesh tags (314, 414) and a target tag (310, 410), the method comprises: sending a broadcast message from the target tag (310, 410); receiving the broadcast message in each mesh tag (314, 414); measure a Received Signal Strength Indicator (RSSI) of the received broadcast message in each mesh tag (314, 414); transmitting the RSSI from each mesh tag (314, 414) to said target tag (310, 410); selecting, in the target tag (310, 410), one subset of mesh tags (314, 414) having the highest RSSI as proximity tags (314-2, 314-3, 314-5, 314-6); performing a Time of Flight (ToF) measurement, in the target tag (310, 410), with all the selected proximity tags (314-2, 314-3, 314-5, 314-6); calculating, in the target tag (310, 410), a real time position of the target tag (310, 410) based on the ToF measurements with all the selected proximity tags (314-2, 314-3, 314-5, 314-6).

This invention provides an autonomous cognitive planning and reasoning method and apparatus for real-time localization in multi-target cooperative scenarios, relating to the field of cooperative localization technology. The method includes: acquiring multi-source environmental data of the target to be localized, including radar point cloud data, inertial navigation data, and visual image data; extracting features from the multi-source environmental data to obtain environmental features of the cooperative environment; predicting the environmental situation of the target to be localized based on the environmental features to obtain future environmental change trends; performing multi-target optimization planning on the future environmental change trends to generate the optimal cooperative path for the target to be localized; and generating the real-time localization result of the target to be localized based on the optimal cooperative path. This invention addresses the shortcomings of existing real-time localization systems, such as poor adaptability in high-speed cooperative environments, path planning and decision-making failures, and insufficient real-time localization accuracy.

A system and method provided for detecting or mitigating distance attacks against real-time location systems for determining a position of a remote device relative to an object or device. The system and method may utilize phase coherency in conjunction with a time of arrival estimate as a basis for detecting or mitigating distance attacks.

A real-time locating system having: at least one radio frequency tag (2) in a mobile element located in real time and at least one locating station (4) having: a processing and control unit (7); a plurality of transceivers (6); a plurality of antennas (5); means for determining a relative position of the antennas (5) and / or of the transceivers (6); and a synchronisation unit (8) configured to send one same clock signal to all the transceivers (6); the tag (2) is configured to periodically emit a presence signal associated with an identifier; the processing and control unit (7) calculates the position of the tag (2) reaches one or more transceivers (6), the values from the sensors (9) of the locating station (4) and / or the values from the sensors (9) of the tag (2) to estimate the current position of the tag (2).

The application relates to the field of virtual reality, and discloses a multi-user virtual reality experience system, which comprises a real-time positioning system, the real-time positioning system is used for capturing the spatial coordinates and action postures of wearing devices of multiple users, and real-time synchronization response of virtual roles and real actions is realized according to action information and position tracking information of each user; the real-time positioning system is also used for driving the virtual roles corresponding to each user to move in a virtual scene; a multi-modal environment simulation component; the multi-modal environment simulation component is used for simulating various physical environment changes in the virtual scene; a space base; a space construction component dynamically adjusts a space topology structure through an electric sliding rail system to restore the movement and interaction of the user in the virtual environment in a real environment; and a scene generation system generates a virtual scene matched with the position, environment and wall body layout of the user in real time. The method has the following effects: the technical problem of large space mapping error in multi-user collaborative interaction is solved.