A method for positioning a robot at start-up includes: when the robot is started up, controlling the robot to rotate in a preset rotation direction in a start-up positioning region; determining position information about a rotation path of the positioning transmitting unit according to the preset rotation direction and a set of at least three different position distances, where the at least three different position distances are between the positioning transmitting unit and the two positioning receiving units disposed at the different fixed positions and are determined during a rotation process; using a direction extending from the center position of the rotation path to a position of the positioning transmitting unit when the robot stops rotation as orientation information of the robot; and using the center position of the rotation path and the orientation information of the robot as start-up positioning information of the robot.

Methods and apparatus for improving a procedure based upon wireless 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 agents 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 an augmented reality view of positions of all or some the providers and equipment and condition quantifying sensors.

A system including a polarized RF scanning reference source and one or more cavity sensor receivers.

A position and orientation determining system includes a first radio frequency (RF) device including at least one antenna configured to receive and transmit RF signals, a first radio unit in communication with the at least one antenna, and an inertial measurement unit (IMU). The system further includes a second RF device includes a constellation of antennae including at least three receiving antennae, a second radio unit in communication with the constellation of antennae, and a processor configured to determine a three-dimensional position and three-axis angular orientation of the first RF device relative to the second RF device based on computing at least two of three angles in the second RF device coordinate frame (XY, XZ and YZ) computed from carrier phase difference (CPD) measurements taken between each pair of the at least three receiving antennae when receiving a single RF signal transmitted from the at least one antenna of the first RF device, and estimating a direction of a gravity vector generated by the IMU.

This specification describes a method comprising determining an orientation of a first apparatus with respect to a second apparatus (S6.2) based on at least one radio frequency packet passed wirelessly between the first and second apparatuses, and causing performance of an active scan for the second apparatus or a third apparatus associated with the second apparatus (S6.5) only if it is determined that the orientation of the first apparatus with respect to the second apparatus satisfies at least one predetermined condition (S6.3).

A vehicle, hitch, and articulating trailer include vehicle to vehicle and infrastructure communications and vehicle computing systems, which have a controller coupled to and/or including one or more of a dynamics measurement unit, a transceiver, and a position sensor, among other components. The controller(s) are configured to, in response to detecting positions of trailer corners from the position sensor, generate vehicle and trailer relative orientation and navigation data including location, velocity, and orientation, utilizing vehicle and trailer electronic polyhedrons articulating about a hitch point and representing the combination vehicle and trailer predicted path and envelopes. In response to detected trailer movement relative to the hitch point, the generated articulated polyhedrons are generated with the navigation data, which includes the location, speed, and orientation, which are in turn communicated to nearby vehicles and roadway infrastructure. Initial trailer vertices may be generated with wireless and mobile devices to generate the trailer polyhedron.

A safety system and a method for localizing at least one object having a control and evaluation unit have at least one radio location system. The radio location system has at least three arranged radio stations. Position data of the object can be determined by means of the radio location system and can be transmitted to the control and evaluation unit. At least three radio transponders are arranged at the object, each arranged spaced apart from one another and the three radio transponders form different points on a plane and unambiguously define the plane in space. The control and evaluation unit is configured to compare the position data of the radio transponders and to form checked position data of the object. The control and evaluation unit is configured to form orientation data of the object from the position data of the radio transponders.

Systems and methods for spatial tracking using a hybrid signal are disclosed. A method for spatial tracking using a hybrid signal may include: receiving, from a peripheral unit and via an antenna array of a central unit, a signal that includes inertial measurement data from an inertial measurement unit (IMU) of the peripheral unit, and a constant tone extension (CTE); determining, based on the CTE, direction data for the peripheral unit; and determining, based on the direction data and the inertial measurement data, spatial tracking data for the peripheral unit.

A device (10) is placed on an object (30). A reference feature of the object (30) is aligned with a reference feature of the device (10). Based on signals transmitted between at least one measurement point of the device (10) and a further device (20), a position of the at least one measurement point is measured. The position of the object (30) is then determined based on the measured position of the at least one measurement point and based on information on arrangement of the at least one measurement point in relation to the reference feature of the device (10).

Methods and apparatus for display of digital content associated with a location in a radio transmission area. A user interface is generated with a digital representation of energy levels received into an energy receiving sensor, such as a CCD or CMOS sensor. The user interface includes interactive portions based upon positions in the radio transmission area. The interactive portions may be activated to display the digital content in a user interface.