RADIO FREQUENCY (RF) RANGING IN PROPAGATION LIMITED RF ENVIRONMENTS UTILIZING AERIAL VEHICLES

    公开(公告)号:US20230288579A1

    公开(公告)日:2023-09-14

    申请号:US18199934

    申请日:2023-05-20

    IPC分类号: G01S19/46 G01S19/11 G01S19/51

    摘要: The embodiments described herein provide ranging capabilities in RF-opaque environments, such as a jungle, that preclude the use of Global Positioning System (GPS) and/or laser ranging systems, utilizing transponders and Global Positioning System (GPS) receivers located on aerial vehicles. The aerial vehicles operate above the RF-opaque environment, and communicate with a ranging device within the RF-opaque environment on frequencies that propagate in the RF-opaque environment. The ranging device transmits RF signals to the transponders, which are received by the transponders and sent back to the ranging device on a different frequency. The aerial vehicles also provide their coordinates to the ranging device using their GPS receivers. The ranging device uses information about the transmitted and received RF signals and the GPS coordinates of the aerial vehicles to calculate a distance to a property line from the ranging device, and/or to calculate a coordinate location of the ranging device.

    Radiant Heating System for a Surface Structure, and Surface Structure Assembly with Radiant Heater
    2.
    发明申请
    Radiant Heating System for a Surface Structure, and Surface Structure Assembly with Radiant Heater 审中-公开
    用于表面结构的辐射加热系统和带辐射加热器的表面结构组件

    公开(公告)号:US20150267359A1

    公开(公告)日:2015-09-24

    申请号:US14665134

    申请日:2015-03-23

    发明人: Craig M. Berger

    IPC分类号: E01C11/26 H05B1/02 H05B3/26

    CPC分类号: E01C11/265 A61H3/066 H05B3/26

    摘要: A surface structure assembly that is adapted to be heated when electrically connected to a source of electrical power. The assembly has a relatively flat, thin surface structure having a top surface and an opposing bottom surface, and an electrically-operated radiant heating panel that has opposed front and back surfaces and is about the same size and shape as the surface structure. A fastening system mechanically couples the front surface of heating panel to the bottom surface of the surface structure.

    摘要翻译: 一种表面结构组件,其适于在电连接到电源时被加热。 组件具有相对平坦的具有顶表面和相对底表面的薄表面结构,以及电操作的辐射加热板,其具有相对的前表面和后表面,并且具有与表面结构大致相同的尺寸和形状。 紧固系统将加热面板的前表面机械连接到表面结构的底表面。

    Dual frequency ranging with calculated integer wavelength delays in RF environments

    公开(公告)号:US12105187B2

    公开(公告)日:2024-10-01

    申请号:US18212653

    申请日:2023-06-21

    IPC分类号: G01S13/76 G01S7/295

    CPC分类号: G01S13/762 G01S7/295

    摘要: The embodiments described herein provide ranging capabilities in RF-opaque environments, such as a jungle, utilizing transponders located on a property line. In particular, the embodiments described herein provide for determining a distance to a property line from a ranging device. The transponders are located on the property line and are separated from each other by a known distance. The ranging device transmits RF signals to the transponders, and receives RF signals returned by the transponders on a different frequency. The ranging device uses information about the transmitted and received RF signals and the known distance to calculate a distance from the ranging device to the property line.

    RADIO FREQUENCY (RF) RANGING IN PROPAGATION LIMITED RF ENVIRONMENTS

    公开(公告)号:US20230333238A1

    公开(公告)日:2023-10-19

    申请号:US18212653

    申请日:2023-06-21

    IPC分类号: G01S13/76 G01S7/295

    CPC分类号: G01S13/762 G01S7/295

    摘要: The embodiments described herein provide ranging capabilities in RF-opaque environments, such as a jungle, utilizing transponders located on a property line. In particular, the embodiments described herein provide for determining a distance to a property line from a ranging device. The transponders are located on the property line and are separated from each other by a known distance. The ranging device transmits RF signals to the transponders, and receives RF signals returned by the transponders on a different frequency. The ranging device uses information about the transmitted and received RF signals and the known distance to calculate a distance from the ranging device to the property line.

    RADIO FREQUENCY (RF) RANGING IN PROPAGATION LIMITED RF ENVIRONMENTS UTILIZING AERIAL VEHICLES

    公开(公告)号:US20240201398A1

    公开(公告)日:2024-06-20

    申请号:US18592686

    申请日:2024-03-01

    IPC分类号: G01S19/46 G01S19/11 G01S19/51

    摘要: The embodiments described herein provide ranging capabilities in RF-opaque environments, such as a jungle, that preclude the use of Global Positioning System (GPS) and/or laser ranging systems, utilizing transponders and GPS receivers located on aerial vehicles. The aerial vehicles operate above the RF-opaque environment, and communicate with a ranging device within the RF-opaque environment on frequencies that propagate in the RF-opaque environment. The ranging device transmits RF signals to the transponders, which are received by the transponders and sent back to the ranging device. The aerial vehicles also provide their coordinates to the ranging device using their GPS receivers. The ranging device uses information about the transmitted and received RF signals and the GPS coordinates of the aerial vehicles to calculate a distance to a property line from the ranging device, and/or to calculate a coordinate location of the ranging device.

    Radio frequency (RF) ranging in propagation limited RF environments utilizing aerial vehicles

    公开(公告)号:US11971492B2

    公开(公告)日:2024-04-30

    申请号:US18199934

    申请日:2023-05-20

    IPC分类号: G01S19/46 G01S19/11 G01S19/51

    摘要: The embodiments described herein provide ranging capabilities in RF-opaque environments, such as a jungle, that preclude the use of Global Positioning System (GPS) and/or laser ranging systems, utilizing transponders and Global Positioning System (GPS) receivers located on aerial vehicles. The aerial vehicles operate above the RF-opaque environment, and communicate with a ranging device within the RF-opaque environment on frequencies that propagate in the RF-opaque environment. The ranging device transmits RF signals to the transponders, which are received by the transponders and sent back to the ranging device on a different frequency. The aerial vehicles also provide their coordinates to the ranging device using their GPS receivers. The ranging device uses information about the transmitted and received RF signals and the GPS coordinates of the aerial vehicles to calculate a distance to a property line from the ranging device, and/or to calculate a coordinate location of the ranging device.