Systems and methods of providing location-based functionality using acoustic location determination techniques are disclosed. For instance, acoustic signals can be received from one or more transmitting devices associated with a real-time locating system. A location of a mobile computing device can be determined based at least in part on the received acoustic signals. One or more actions to perform can be determined based at least in part on a control scheme associated with the real-time locating system and the determined location. The one or more actions can be performed.

Disclosed is an unmanned automated hook-fastening device including a device coupler, a propulsion unit, a transmitter, a receiver, hook pliers, and an unloading transmitter. The propulsion unit adjusts the position of the hoisting unit with respect to the object, on the basis of the position signal transmitted by the transmitter and received by the receiver, and adjusts the position of the hoisting unit coupled to the object, on the basis of the position signal transmitted by the unloading transmitter and received by the receiver. It is possible to easily track the position of a hook of the object to be hoisted, automatically fasten the hook pliers to the hook, and automatically fasten the hook to a crane without a monitoring system.

A process, for adapting an audio environment based on a current user location includes initializing a wearable device with a hub, determining a device location, generating a sound property for content based on the location, adjusting a sound based on the sound property, obtaining device motion data, obtaining an updated device location, generating a second sound property, and adjusting a second sound based on the second sound property. The first location and the updated first location for may be determined by establishing a connection between the device and the hub, establishing a second connection between the device and a first access point, establishing a third connection between the device and a second access point, and calculating the locations by triangulating timing signals received by the device from the hub, the first access point, and the second access point. The sound properties may include first and second volume settings.

A method includes communicating first and second signals between a first node and a second node, where the first signal includes a sonic signal and the second signal includes an electromagnetic signal. The method also includes using the electromagnetic signal to one of start or stop a timer and using the sonic signal to another of stop or start the timer. The method further includes identifying a one-way time-of-flight associated with the sonic signal traveling between the first and second nodes using the timer. The one-way time-of-flight associated with the sonic signal is indicative of a distance between the nodes.

A sonic conduit tracer includes a sonic transmitter, a sonic receiver and a spectrum analyzer. The transmitter may be configured to transmit an audio signal down an interior length of an empty conduit from a proximate end of the conduit for identification purposes. The receiver may be configured to receive an audio return signal. The spectrum analyzer may be configured to analyze the audio return signal to facilitate the determination of a location of a distant end of the conduit. The sonic conduit tracer may use the audio return signal to determine an estimated length of the conduit.

A sonic conduit tracer includes a sonic transmitter, a sonic receiver and a spectrum analyzer. The transmitter may be configured to transmit an audio signal down an interior length of an empty conduit from a proximate end of the conduit for identification purposes. The receiver may be configured to receive an audio return signal. The spectrum analyzer may be configured to analyze the audio return signal to facilitate the determination of a location of a distant end of the conduit. The sonic conduit tracer may use the audio return signal to determine an estimated length of the conduit.

A method for radio measuring applications, wherein at least two radio nodes operate at least once in a transmit mode and in a receive mode and form a cell and at least one radio node operates as an extra radio node works exclusively in a receive or transmit mode, each radio node has a timer and a further data interface, to initiate the measurement cycle, an initial signal with a first carrier frequency is transmitted by one of the radio nodes and received by at least one radio node of the cell, during the measurement cycle at least one radio node of the cell transmits a response signal with a further carrier frequency and the response signal is received by at least one radio node.

A positioning system has an initiator device configured for emitting a high-speed wireless signal, at least one reference device configured for receiving the high-speed wireless signal and emitting a low-speed wireless signal after receiving the high-speed wireless signal, at least one target device each having one or more components for receiving the low-speed wireless signals, and at least one engine configured for determining the position of each of the at-least-one target device by calculating the distance between the target device and each of the at-least-one reference device based on at least the times-of-arrival of the low-speed wireless signals, each time-of-arrival being the time that the corresponding low-speed wireless signal being received by the target device, and determining the position of the target device based on the calculated distances.

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 system for locating an event on an aircraft using augmented-reality content, an array of ultrasonic devices configured in mesh topology, and deep learning.