Multiple sensing network units are deployed in a venue. Each unit includes an overhead housing, and supports a plurality of electrically-powered sensor modules for sensing targets in the venue, and for generating target data indicative of the targets. Each unit preferably also includes a network communications module. Each module is interchangeably mounted in the housing. A power and data distribution system transmits network control data and electrical power to the sensor modules, and transmits the target data away from the sensor modules.

A system for tracking and guiding a downhole tool underground along a desired borepath. GPS measurements are taken by a GPS unit at desired waypoints on the ground surface that overlays the desired borepath. A planned route for the downhole tool to follow underground is generated from the GPS measurements of the waypoints. A tracker is used to track the location of the downhole tool underground while drilling a borepath. GPS measurements of a series of above-ground locations that overlay the borepath created by the moving downhole tool are taken and sent to the processor. The processor checks for deviation between the GPS measurements of the above-ground locations and the planned route and provides directions to correct the borepath of the downhole tool in response to the deviation.

Aspects relate to group-based positioning reference signal (PRS) broadcast in a wireless communication network. Wireless communication devices communicating over a sidelink channel in the wireless communication network may be grouped into one or more positioning groups. Within each positioning group, a respective order of the wireless communication devices in the positioning group may be identified. The wireless communication devices in a positioning group may then communicate PRSs therebetween over the sidelink channel based on the order of wireless communication devices in the positioning group.

A system and method is disclosed for measuring time of flight to an object. A transmitter transmits an electromagnetic signal and provides a reference signal corresponding to the electromagnetic signal. A receiver receives the electromagnetic signal and provides a response signal corresponding to the received electromagnetic signal. A detection circuit is configured to determine a time of flight between the transmitter and the receiver based upon the reference signal and the response signal.

Smart luggage systems are disclosed. A smart luggage system includes a luggage bag including one or more wheels, one or more processors, one or more memory modules, one or more wheel actuators, one or more GPS units, and machine readable instructions stored in the one or more memory modules. When executed by the one or more processors, the machine readable instructions cause the smart luggage system to determine a location of a user, determine a location of the luggage bag based on an output signal from the one or more GPS units, and actuate the one or more wheel actuators to move the luggage bag based on the location of the user and the location of the luggage bag.

An information processing apparatus comprises a recording module; an extraction module which extracts maximum radio wave intensity from the radio wave intensities recorded in the same time zone and extracts the radio wave intensities of other first communication devices arranged in the vicinity of a position where the first communication device with the maximum radio wave intensity is installed; and a positioning module which measures a position of the second communication device based on the plurality of the radio wave intensities extracted by the extraction module, wherein the positioning module determines that the second communication device is present at a position where the first communication device with the maximum radio wave intensity is installed on condition that the maximum radio wave intensity extracted by the extraction module is equal to or greater than a threshold value.

An interactive mobile robot system and a method for creating an invisible track for a mobile robot. The system and method allow the creation of invisible tracks by guiding objects. They also allow the use of such invisible tracks for the semi-autonomous or autonomous control of toys, including model cars and model trains, or of mobile robots to move them along a real-world path. The system includes a mobile robot, receiver circuitry to receive one or more position signals, and processing circuitry. The processing circuitry is configured to determine position information associated with the mobile robot based on the one or more position signals. The processing circuitry is further configured to create an invisible track based on the position information, to determine a current position of the mobile robot, and to generate control signals based on the current position of the mobile robot and the invisible track.

A method for autonomous mower navigation includes receiving a return-to-zero encoded signal including a pseudo-random sequence, transforming the received signal to a non-return-to-zero representation, digitally sampling the non-return-to-zero signal representation in a time domain, filtering the sampled signal utilizing a reference data array based on the return-to-zero encoded signal to produce a filter output, and determining a location of the autonomous mower relative to a defined work area based on an evaluation of the filter output.

A method and system of tracking and reporting locations of entity employees, the method for use with at least a first interface device including a display screen, the method comprising the steps of, providing a processor programmed to perform the steps of, storing schedules of entity employees where the schedules indicate scheduled locations of employees during time slots, receiving an indication from a first employee indicating at least a first future time slot, identifying locations of the entity employees during the future time slot, using the schedules of entity employees to generate a location representation indicating the locations of at least a subset of the entity employees during the at least a first future time slot and presenting the location representation via the first interface device.

A guiding system for positioning a target object, which is capable of guiding a user of a mobile device to the position of the target object comprises an wireless positioning device configured on the target object, a plurality of base stations configured around the target object, a positioning server, and an application software built in the mobile device. The wireless positioning device sends wireless broadcasting signal to the base stations. The base stations measure the intensities of broadcasting signal and then send the broadcasting signal and the intensities to the positioning server. The positioning server calculates a locating area of the target object according to the broadcasting signal and the intensities, and then sends the locating area to the mobile device. The application software displays the locating area of the target object to guide the user of the mobile device to the locating area.