US 12,730,322 B1 · Advanced networking, detection, and data visualization techniques in multiple networked devices

Abstract

A soldier-portable mixed-reality system provides centimeter-accurate positioning, electronic-warfare-hardened communications, and multi-spectral visualization without reliance on GPS or fixed infrastructure. Each head-mounted device contains a chip-scale atomic clock, isotropic time-of-flight ranging radios, a beam-steered software-defined radio, a modular sensor rail, and a see-through display. Wireless precision-time-protocol exchanges hold inter-device clock error below 0.5 ns, enabling cooperative multilateration for self-generated three-dimensional pose. An adaptive “Whisper-Mesh” waveform senses jamming, hops frequency, tight-beams at ≤5° width, and transmits in <5% duty-cycle bursts for low probability of detection. Sensor fusion combines visible, infrared, and targeting data with <10 ms latency, projecting reticles and tactical icons on the visor. A vehicle gateway preserves nanosecond timing over back-haul links, and unmanned drones extend coverage through reconfigurable formations. Energy-aware scheduling balances compute across nodes, extending mission endurance. The system maintains navigation, secure communication, and weapon-aiming accuracy in GPS-denied, contested environments.

Claims20

Dependent claims

A tactical augmented-reality system, comprising:

a plurality of head-mounted computing devices, each device including a see-through display, an inertial measurement unit, a precision timing clock, a time-of-flight ranging module, and a software-defined radio transceiver;
one or more unmanned aerial vehicles communicatively linked to the head-mounted computing devices as relay nodes;
a vehicle-mounted gateway node configured to join a wireless mesh network formed by the head-mounted devices and to interface that mesh network with an external communication network;
and
a control system configured to synchronize clocks among the head-mounted devices to within sub-nanosecond accuracy, to determine relative positions of all head-mounted devices by multilateration of time-of-flight range measurements, and to present augmented-reality information to users via the see-through displays in real time, wherein the software-defined radios of the head-mounted devices automatically adapt transmission parameters to mitigate detected interference and maintain low probability of intercept, and wherein the unmanned aerial vehicles are operable in a coordinated swarm to extend communication coverage and sensor range for the head-mounted devices.

2 more elements

A method of providing coordinated localization, communication, and sensing for a team of users in a GPS-denied environment, the method comprising:

transmitting, from each of a plurality of head-mounted augmented-reality devices carried by the users, a short ultra-wideband ranging pulse or packet that includes a transmit timestamp generated by a local high-stability clock on the device;
wirelessly synchronizing the clocks of the plurality of head-mounted devices to within 0.5 nanoseconds root-mean-square of each other by exchanging timestamped signals among the devices;
computing a set of inter-device distances by comparing transmit timestamps to corresponding receive timestamps for signals exchanged between each pair of devices;
determining a three-dimensional relative position for each of the head-mounted devices by multilateration based on the set of inter-device distances and on inertial measurements from the head-mounted devices;
deploying a plurality of unmanned aerial vehicles in a predetermined formation to form an airborne communication relay and sensing network linked with the head-mounted devices;
collecting sensor data from the unmanned aerial vehicles in coordination with the head-mounted devices using the synchronized clocks as a common time base;
and
reconfiguring the formation of the unmanned aerial vehicles into a relay chain configuration in response to detecting an obstacle that prevents direct radio communication between at least two of the head-mounted devices.

5 more elements

Dependencies are inferred from the claim text.

Advanced networking, detection, and data visualization techniques in multiple networked devices

Life of this patent

Advanced networking, detection, and data visualization techniques in multiple networked devices

Life of this patent

Abstract

Claims20