A method using ultra wide band (UWB) communication for determining a location of an object inside a plant growing environment, wherein the object is provided with an UWB transmitter; the plant growing environment is provided with multiple UWB receivers; and the receivers are connected to a processing unit. The method includes: broadcasting a message from the object over UWB using the transmitter; receiving the message at at least some of the receivers; and determining a location estimate for the object through lateration and/or angulation, by the processing unit. A UWB communication system for performing the method and a plant growing environment comprising such a system.

Disclosed herein are a method for access control using real-time positioning technology and a device using the same. According to a positioning method of a positioning module, the positioning module is configured to measure a location of at least one location-unrecognized device and a location of a terminal, wherein the at least one location-unrecognized device, the terminal and at least one location-recognized device is located in a certain zone, and wherein the positioning module has coordinate information of the at least one location-recognized device and the positioning module has not coordinate information of the at least one location-unrecognized device.

A method for locating wireless tags is described. A signal including a RoomID generated by a transceiver is received by a wireless tag. The RoomID identifies a room corresponding to the transceiver and the wireless tag receives the signal asynchronously without being synchronized with the transceiver. A tracking packet including the RoomID and an identifier of the wireless tag is broadcasted by the wireless tag. The tracking packet is received by an access point which provides the tracking packet to a localization system that determines a location of the wireless tag based on the RoomID.

An exemplary system and method are disclosed for capturing visual body signals using distance measurements among different parts of the body and for providing classification for them. The exemplary system and method can be employed to generate the classification and provide a second source of communication of the classification to supplement the visual cues provided by such body motion or positioning.

In various example embodiments, a system and method for digital lists of items are presented. An authentication interface module authenticates a first user device to authorize access to listing services of a web resource of a registered vendor. The web resource can generate an add-item request in response to user input from authorized user devices. The add-item request is linked to a first item of a vendor-item list. A list management module updates a selected-item list to include the first item of the vendor-item list and a notification attribute. A notification management module detects a notification event of the first item based on the notification attribute. In response to a detection of a notification event of the first item, the notification management module provides a notification message to one or more user devices linked to the first user account.

A safety sensing system implements a method for a person in an industrial environment comprises providing a personnel locator device (10) for location on a person and a reference system comprising a plurality of nodes (20) located at predetermined ocations in the industrial environment (100). Radio ranging signals are transmitted between the nodes (20) and the personnel locator device (10) and measurements of times of flight of the radio ranging signals are derived. The location of the personnel locator device (10) is calculated based on the measurements of the times of flight of the radio ranging signals and reference information representing the predetermined locations of the nodes (10). It is determined if the calculated location of the personnel locator device (10) is within ne or more danger zones in the industrial environment (100) and a warning signal is output in response thereto.

Provided are an application program and a behavior management device that enable behavior management using a wireless communication technology included in a portable device and that can be helpful for solving various problems. A server SV is provided with: a time information input means for receiving input of time information; and a mapping means for reading, from a database of the server SV, device information corresponding to the time information, the input of which has been received by the time information input means, and relative positional relation information corresponding to the device information, and for performing mapping to arrange users on a virtual map on the basis of the relative positional relation information corresponding to the read device information.

Methods and apparatus for improving the provision of a procedure based upon automated determination of a location of agents and equipment during a procedure and quantifying conditions in an environment via automated sensors. The present invention provides apparatus and methods for wireless designation of a position of health care providers and equipment relative to each other based upon wireless communications amongst multiple wireless transceivers combined with ongoing monitoring of conditions present in a facility. The transceivers may be portions of nodes and nodes may form self-verifying arrays. A user interface may provide a augmented reality view of positions of all or some the providers and equipment and condition quantifying sensors.

A method including associating an ultra-wide band (UWB) tag device with a UWB anchor device, capturing UWB range and angle data representing a plurality of locations in a physical space using a calibration technique, capturing UWB range and angle data representing a first location of the UWB tag device in relation to the UWB anchor device, capturing UWB range and angle data representing a second location of the UWB tag device in relation to the UWB anchor device, and determining a length based on the first location and the second location.

A first device determines relative position data representative of a position of one or more other user devices relative to the first device. To determine relative position data between the first device and a second device, the first device determines a distance between the first device and the second device at a plurality of timestamps. Additionally, the first device determines movement data at each timestamp from one or more device sensors. The movement data at each corresponding timestamp may reflect movement of the first device and/or the second device between a prior timestamp and the corresponding timestamp. The first device computes relative position data for the second device by combining the distance measurements and movement data over the plurality of timestamps, for instance, through a process of sensor fusion. By computing the relative position data, the first device may determine a transformation that can be used to convert between a coordinate system of the second device and the coordinate system of the first device.