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

A wireless communication network for programming and monitoring a plurality of network-managed devices, including electronic-ink based display devices, comprising a network management computer system, a network gateway device, one or more wireless network routers, a plurality of network-managed devices, and a network coordinator. The wireless communication network of the present invention bridges the gap between wireless display networks, wireless sensor networks, and the worlds of passive, active and partially-active RFID and real-time locating systems. The wireless communication network of the present invention allows conventional communication network protocols to operate in more flexible ways in dynamic, diverse, and heterogeneous application environments, in fields including retail, healthcare, transport, logistics, manufacturing, education, etc. At the same time, the wireless communication network of the present invention is preferably based on the IEEE 802.15.4 network layer standard, which offers low-cost wireless network communication between a large number of wireless network end-devices.

Real time location system functionality is provided in conjunction with bar codes and other coded information devices to provide location information in transaction processing systems. A system and method of the present invention may be used to track the location of objects which are coupled to coded information devices.

A system and method is disclosed for tracking in real time the location of a person, animal, or other object in a community having a cable infrastructure. The system may include at least one identification tag, at least one stationary reader adapted to track the identification tag, and a controlling device adapted to receive information from the stationary reader and transmit information on the cable infrastructure. The method may include defining a plurality of zones within the community; locating a person, animal, or other object in the plurality of zones; determining a location of the person, animal, or other object; and providing the location of the person, animal, or other object on the cable infrastructure of the community.

A communications system, such as part of a real-time location system, includes a transmitter that can be part of a location processor, tag emission reader or tag interrogator that generates a frequency shift key (FSK) modulated wireless communication signal representative of digital data and transmits the communications signal over a wireless communications channel. A receiver such as incorporated within a tag transceiver used in the real-time location system receives the FSK modulated communication signal. The receiver includes a circuit for calculating the magnitude of low and high tones of the FSK modulated communication signal and a threshold for amplitude shift keyed (ASK) channel data and FSK channel data to derive the digital data even in the presence of on-tone jammers in the communications channel.

The invention relates to an intelligent cleaning robot based on an advanced path programming technology and a cleaning method thereof. An external environment information detection system installed on a robot body, a real-time positioning system, a main control system, a motor driving module and a power supply are included. The external environment information detection system is used for detecting external environment information. The real-time positioning system is used for acquiring a real-time position where the robot is located. The main control system is used for acquiring external environment information and establishing a grid map. Through combining the grid map and the real-time position, a cleaning path is programmed. The motor driving module is used for driving the robot to operate according to the programmed cleaning path and clean. The power supply is used for providing power for the main control system and the motor driving module. A path programming technology of boundary cleaning, rectangular manufacturing, parallel paving and cleaning and obstacle consideration is used to design the cleaning path, a current position is determined in real time, cleaning time is saved and simultaneously a largest coverage rate to an cleaning environment is realized.

Real-time location systems and methods use small, battery operated sensors and radios. The radios conform to the IEEE 802.15.4 standard. The radios are attached to objects to form mobile nodes. Fixed nodes are positioned to define a wired or wireless mesh network representing an area in which the objects can be monitored and tracked. The real-time location systems/methods provide robust, flexible and highly scalable systems/methods for remotely, accurately, efficiently, and/or readily tracking and securing objects (e.g., equipment, inventory, people) at a relatively low cost.

The invention discloses a big data based wireless real-time position positioning method. The big data based wireless real-time position positioning method comprises the following steps of gridding a positioned detection area, enabling a plurality of wireless routers which are arranged inside the detection area to transmit wireless signals, enabling a wireless signal receiver to collect wireless signal information of the wireless routers for a plurality of times in every grid of the area after gridding and forming collected wireless signal information into a big database wireless signal fingerprint database; performing signal preprocessing; performing parameter training; training DNN(Deep Neural Networks); performing signal character extraction and character classification based on the trained DNN; performing position estimation based on a HMM (Hidden Markov Model). The big data based wireless real-time position positioning method has the advantages of improving the accuracy of a positioning result under the condition that the real-time positioning speed is not influenced, successfully integrating positioning problems into the big data background and improving the performance of the real-time positioning system by effectively using advantages of the big data.

The invention discloses a parking position visual navigation system based on indoor precise real-time localization, comprising an indoor precise real-time localization system, an indoor wireless communication system, a navigator and a parking lot management server. An automobile driver receives a hand-hold navigator when entering a parking lot or directly enters the parking lot by using an onboard navigator; the indoor precise real-time localization system determines the precise position of the driver according to a localization label arranged in the navigator and transmits the precise position to the parking lot management server by the indoor wireless communication system; the parking lot management server determines the optimal parking position according to the position of the driver and the vacancy situation of the parking lot, and then the optimal parking position navigating route is transmitted to the navigator by the indoor communicating system and is displayed on the screen of the navigator. The invention does not need to install a parking position detector at each parking position and can carry out precise visual navigation on the parking position, thereby ensuring that a parker can quickly and accurately find the parking position. The invention is especially suitable for the management of large-sized parking lots.

The preferred embodiment provides an ultra-wide band radio frequency real-time location system (RTLS), synchronized with a GPS location system to provide reliable location data, in and around concrete and steel superstructures to a BIM graphic model system, to gather and display worker location data and coordinate its display for use. The RTLS system continuously locates each participant through the use of an active RFID tag and/or GPS location device, which may be placed in a personnel badge and verified. The location system logs the participant locations in a database for real-time information retrieval and upload into a BIM display system.

Real-time locating systems (RTLS) for self-shopping systems that utilize a dual technology approach. Self-shopping terminals are equipped with a passive or active ultra-wideband (UWB) tag that includes a UWB backscatter module or a UWB transmitter, respectively, as well as a standard wireless communication transceiver, such as a Wi-Fi® or UHF-RFID transceiver, that enables communication over the wireless communication channel. Readers fixed within a shopping environment activate the UWB tag of a selected one of the self-shopping terminals by addressing the self-shopping terminal using the standard wireless communication channel. Once activated, the UWB tag of the selected self-shopping terminal transmits UWB signals which are received by a plurality of the readers and used to determine the location of the UWB tag and hence the location of the self-shopping terminal. A messaging system may send messages to the self-shopping terminal for presentation to the customer on a display of the self-shopping terminal.

A real-time location system and method for a wireless network includes, in one embodiment: (a) obtaining received signal-strength indicator measurements between stationary routers and mobile devices; (b) determining the relative angles of mobile devices from stationary routers using directional antenna systems; and (c) using signal strength and angle information to calculate the location of mobile devices.

A real time monitoring system and a method thereof of an optical film manufacturing process are provided. The real time monitoring system includes a plurality of production systems and a cloud big data platform which connects to the plurality of production systems. The process data of the production line is collected by as production line data collector of the production system. The process data is uploaded to a database of the cloud big data platform. The historical process data across the plurality of production systems can be combined as a process waveform feature by a profile database. A processor connects to the database and the profile database. The differences between the process data and the process waveform feature are compared in real time. When the difference value exceeds a threshold value, an abnormal message is sent to the corresponding production line.

A real-time location system (RTLS) includes wireless signal collectors, gateway devices, wireless tags, mobile devices, server, and web portal. The gateway devices receive sense signals associated with targets from the wireless signal collectors. Each of the sense signals includes a measurement value (e.g., a RSSI value), an identification of respective wireless signal collector, and an identification of a wireless tag or mobile device of a target. The gateway devices calculate the current geographical location of the targets based on the sense signals. The gateway devices send location data of the targets to the server for further processing and storing in a data storage. The web portal is operable to simultaneously display visual representations of real-time location data of multiple targets and statistical information.

The invention discloses a real-time location method and a system based on radio frequency identification of a mobile communication terminal. A transmitting function of a radio frequency identification locating signal extends in the mobile communication terminal, a reading function of the radio frequency identification locating signal is realized in an identification locating reader, the mobile communication terminal is communicated with the identification locating reader through wired and wireless communication networks and a network server, by adopting subcarrier modulation, direct sequence spread spectrum, code division multiple access, time division collision prevention and multi-system parameter calibration technologies, the interference between a multipath signal and multiple terminals of multiple readers, and the interference of the other wireless communication system can be effectively inhibited, the remote high-precision radio frequency identification location is realized, and the network server is utilized to carry out distributed interactive processing fusion of data information and network dynamic optimization configuration of communication parameters, so that the convenient, reliable, economic and flexible real-time location service application based on the mobile communication terminal can be provided for a user.

The invention discloses an accurate visible navigation system used for guiding indoor mall shopping, exhibition and sightseeing. The system comprises an indoor accurate real-time positioning system, an indoor wireless communication system, a portable terminal and a server, wherein after entering an indoor mall, an exhibition hall or a scenery hall, a user can check the information of an article by the portable terminal; and after finding the needed articles, the user can read or listen to relative introductions on the articles by the portable terminal, and can realize the accurate visible navigation of the arrival route of the articles by the portable terminal, thereby quickly and accurately finding the articles. The system determines the current three-dimensional space position of the portable terminal by utilizing the indoor accurate real-time positioning system, and a separate label does not need to be attached to each article or a display rack thereof. Therefore, the system has the advantages of convenient installation and flexible usage and is especially suitable for guiding the mall shopping, the exhibition, the sightseeing and the like under indoor environment.

An ultra wideband (UWB)-based high precision positioning method and system is provided. According to the method and system, a precise position measurement according to a UWB signal characteristic can be achieved by an interaction between a UWB tag and an access point without a separate server in a real-time positioning system, further, a user terminal can receive information even when a user terminal is not connected to a separate Internet communication network by receiving position information of the UWB tag and additional information based on the position information through Bluetooth or a universal serial bus (USB).

A real-time locating system (RTLS) for localization using satellite navigation signals in a Distributed Antenna System includes Off-Air Access Units (OAAUs), each being operable to receive an individual satellite navigation signal from a satellite and to route signals optically to a digital access unit (DAU). Remote digital remote units (DRUs) are located at Remote locations and are operable to receive signals the DAUs. Each individual satellite navigation signal can be appropriately delayed (in a manner that accounts for a DRU's location). For each antenna, a separation distance between a mobile station and a DRU can be estimated based on a signal receipt time at the station. In combination, these distances can be used to estimate the mobile station's precise indoor position.

The invention relates to a real-time positioning system of prisons based on RFID and an implementation method thereof. The system comprises RFID base stations, prisoner wrist labels, a communication bus and a positioning management center. The RFID base station and the prisoner wrist labels are communicated in a wireless way through radio-frequency signals, and the RFID base stations are connected with the positioning management center through the communication bus. The implementation method comprises steps as follows: (1) distributed prisoner real-time positioning scheme based on the signal intensity values of the prisoner wrist labels in the RIFD base stations; (2) laying method of the RFID bas stations; (3) moving track of the prisoner is drawn, and the moving speed is computed according to precedence order, signal intensity values and time difference of the prisoner wrist labels read by the RFID base stations; and (4) the prisoner wrist labels are read by special RFID base station to judge whether special incident occurs. The real-time positioning system of prisons based on RFID and implementation method thereof can effectively carry out real-time positioning and monitoring of the prisoners.

Active RFID technologies are used to tag assets and people within buildings or open areas, such as parking lots or military bases; and to identify, preferably within a few meters, the real-time location (RTL) of the tag, i.e. to create a real-time location system, known as an RTLS. A novel and complex algorithm is provided that combines signal strength computations with factors that incorporate physical realities, such as walls and floors, to determine a tag's real-time location more accurately.

The present invention discloses an indoor/outdoor seamless positioning system and method. The seamless positioning system comprises a data processing center sub-system, and a Beidou reference station sub-system, an indoor ultra wide band (UWB) positioning sub-system, a Beidou/UWB mobile station sub-system and a system monitoring sub-system which are connected with the data processing center sub-system separately. The data processing center sub-system sends the current position coordinate of a working device which is determined by the Beidou positioning and the UWB positioning to the system monitoring sub-system to display visually, at the same time, calculates the spatial position relation of the working device, the inlet identification point, an outlet identification point and a switching determination identification area according to the current position coordinate of the working device, thereby realizing the bidirectional adaptive switching of the indoor/outdoor combined positioning. Compared with the prior art, the positive effects of the present invention are that by the fusion of the Beidou navigation positioning and a UWB real-time positioning system, the continuous positioning of the indoor/outdoor mechanical devices is realized, thereby realizing the uninterrupted positioning and monitoring of the mechanical devices.

Provided, according to the present invention, is an RTLS tag device generating a power through a shock applied to a piezoelectric element and transmitting tag information or an emergency signal to the wireless LAN APs, and a real time location system including an integrated management server receiving the tag information through the wireless LAN APs to extract location information of the RTLS tag device and providing the extracted location information to a client, and transmitting an alarm signal to the client, if it is determined that the emergency signal has been received or the location information deviates from a predetermined scope.

A system for providing a simulated total dose exposure measurement during a nuclear facility training exercise by locating participants using a real time location system, modeling incremental exposure as a function of location and summing incremental exposure to produce a total dose for each of the participants. Total dose may be displayed via a wireless link to a simulated dosimiter worn by each participant. Radiation sources may also have location tags and the exposure model may be modified in real time according to the tracked location of the radiation source. In one embodiment, the locating technology comprises near field locating technology based on comparing near field signal characteristics. Alternative locating technologies may be used.