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REDUNDANT WIRELESS ELECTRONIC MOTOR VEHICLE CHASSIS MONITORING NETWORK

  • US 20190172008A1
  • Filed: 02/09/2019
  • Published: 06/06/2019
  • Est. Priority Date: 04/03/2017
  • Status: Active Grant
First Claim
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1. A freight tracking system, wherein:

  • the freight tracking system comprises;

    a tracking device configured to be hidden in the taillight of a vehicle; and

    a remote device configured for attachment to the vehicle at a location separate from the taillight;

    the remote device comprises a remote device global navigation satellite system antenna and a remote device mesh networking antenna;

    the remote device global navigation satellite system antenna is configured for receiving electromagnetic signals at a frequency of 1575.42 MHz;

    the remote device mesh networking antenna is configured for;

    sending and receiving electromagnetic signals at frequencies in the range of 2400 MHz to 2500 MHz; and

    communicating position information to the tracking device;

    the tracking device is configured for receiving electrical power from the vehicle;

    the tracking device comprises a tracking device mesh networking antenna wherein the tracking device mesh networking antenna;

    is configured for sending and receiving electromagnetic signals at frequencies in the range of 2400 MHz to 2500 MHz;

    is located on an edge of a printed circuit board assembly configured to be hidden in the taillight of the vehicle;

    is located on a ground plane of the printed circuit board assembly;

    the tracking device comprises a cellular communication antenna wherein the cellular communications antenna;

    is configured for sending and receiving electromagnetic signals at frequencies in the range of 824 to 960 MHz and 1700 to 2170 MHz;

    is located on an edge of the printed circuit board assembly that is separate from the edge of the printed circuit board assembly where the mesh networking antenna is located;

    is located on a ground plane of the printed circuit board assembly that is separate from the ground plane where the mesh networking antenna is located; and

    is oriented in parallel with the mesh networking antenna;

    the tracking device comprises a first position-finding module configured for determining a first position for the vehicle in response to information received by the remote device global navigation satellite system antenna;

    the tracking device comprises an inertial measurement component for determining accelerations in three mutually-perpendicular axes wherein;

    the inertial measurement component further comprises a 3-axis accelerometer, a 3-axis gyroscope, and a 3-axis magnetometer; and

    the determination of inertial information comprises the use of a fusion filter wherein;

    the fusion filter is selected from the group of a Kalman filter, a Madgwick filter, and a Mahony filter; and

    the fusion filter calculation comprises the computation of a plurality of digital quaternions;

    the tracking device comprises a tampering sensor configured for determining tampering information in response to an attempt made to open the tracking device;

    the tracking device is configured to generate a tampering alarm signal in response to the tampering information;

    the tracking device comprises a non-volatile electronic memory configured for storing;

    geographic boundary information comprising;

    an identifier field;

    a geozone type field;

    a center point latitude;

    a center point longitude; and

    a geozone radius;

    first position information for the vehicle wherein the first position information is responsive to the first position-finding module and the first position information further comprises time information; and

    the tampering information wherein the tampering information further comprises time information;

    the tracking device is configured for;

    determining whether the first position information indicates that the vehicle is outside a region defined by the geographic boundary information; and

    initiating a geofencing alarm signal when the first position information indicates that the vehicle is outside of the geographic boundary region;

    the tracking device comprises a first cellular wireless transmitter comprising a first subscriber identity module wherein the first cellular wireless communication transmitter is configured for sending;

    the geofencing alarm signal;

    the first position information; and

    the tampering alarm signal;

    to an internet-connected database.

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