Vehicular vision system using image data transmission and power supply via a coaxial cable

  • US 10,827,108 B2
  • Filed: 02/17/2020
  • Issued: 11/03/2020
  • Est. Priority Date: 09/21/2011
  • Status: Active Grant
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First Claim
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1. A vehicular vision system, said vehicular vision system comprising:

  • a plurality of imaging sensors disposed at a vehicle and having respective exterior fields of view, each of said imaging sensors capturing respective image data;

    an electronic control unit (ECU) disposed at the vehicle and comprising (i) a data processor and (ii) a DC power supply;

    wherein said imaging sensors are connected to said ECU via respective ones of a plurality of single core coaxial cables;

    wherein each of said single core coaxial cables commonly carries (i) image data from the respective imaging sensor to the ECU for processing at the data processor and (ii) power from the DC power supply to the respective imaging sensor;

    wherein a communication protocol is transmitted by said ECU to each of said imaging sensors;

    wherein image data from the respective imaging sensor to said ECU is carried by the respective single core coaxial cable in accordance with the communication protocol; and

    wherein each of said imaging sensors is in bidirectional communication with said ECU over the respective single core coaxial cable using the communication protocol, with signal attenuation being below 100 dB at a frequency of 1 GHz per 100 m length of the respective single core coaxial cable.

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