MODULAR NAVIGATION SYSTEM AND METHODS
First Claim
1. A mobile system comprising:
- an integration module comprising a processor, a memory device and a plurality of input ports connected to the processor;
a GNSS receiver connected to a first input port of the plurality of input ports;
an IMU worn by a subject in a stressed environment, the IMU connected to a second input port of the plurality of input ports; and
a step determining sensor worn by the subject, the step determining sensor connected to a third input port of the plurality of input ports, wherein the processor receives sensor signals from at least two of the plurality of input ports and processes the received sensor signals according to a selected data processing paradigm, stored on the memory device, in order to generate output data representative of position data and orientation data for the subject in the stressed environment.
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Accused Products
Abstract
Systems and methods are provided to generate positioning and orientation data for subjects disposed in stressed environments. In an illustrative implementation, a navigation module comprises an integration module and various sensors to determine the position and orientation of the user. In the illustrative implementation, the navigation module may cooperate with a larger navigation platform comprising a global navigation satellite system (GNSS) receiver, inertial measurement unit (IMU), altimeter, magnetometer, pedometer, and an angular measuring device. Additionally, the illustrative integration module may comprise power and signal conditioning circuitry, a transceiver to send the position and orientation information to other cooperating components such as a monitoring device and integration software for use in processing the various sensor data.
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Citations
20 Claims
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1. A mobile system comprising:
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an integration module comprising a processor, a memory device and a plurality of input ports connected to the processor; a GNSS receiver connected to a first input port of the plurality of input ports; an IMU worn by a subject in a stressed environment, the IMU connected to a second input port of the plurality of input ports; and a step determining sensor worn by the subject, the step determining sensor connected to a third input port of the plurality of input ports, wherein the processor receives sensor signals from at least two of the plurality of input ports and processes the received sensor signals according to a selected data processing paradigm, stored on the memory device, in order to generate output data representative of position data and orientation data for the subject in the stressed environment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system comprising:
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a mobile subsystem comprising; an integration module comprising; an integration processor; an integration module memory device; and a plurality of input ports connected to the integration processor; a GNSS receiver connected to a first input port of the plurality of input ports; an IMU worn by a subject in a stressed environment, the IMU connected to a second input port of the plurality of input ports; a gyroscope worn by the subject and connected to a third input port of the plurality of input ports; and a integration module transceiver, wherein the integration processor receives sensor signals from at least two of the plurality of input ports and processes the received sensor signals according to a selected data processing paradigm, stored on the integration module memory device, to generate output data representative of position data and orientation data for the subject, wherein further, the integration module transceiver receives the output data from the processor; and a base subsystem comprising a base station transceiver and a base station processor, wherein the base station transceiver receives the output data from the integration module transceiver and communicates the output data to the base station processor. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method comprising:
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receiving navigation data from a GNSS receiver, IMU sensor and at least one angular measuring device for a subject disposed in a stressed environment; determining whether the GNSS data is reliable; determining whether the IMU data is reliable; processing the navigation data received from the GNSS receiver, the IMU, and the angular measuring device according to at least one estimation algorithm when data received from one of the GNSS data receiver and the IMU is unreliable; and generating orientation and position data for the subject disposed in the stressed environment based on the at least one estimation algorithm. - View Dependent Claims (18, 19, 20)
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Specification