Vehicle vision system using image data transmission and power supply via a coaxial cable
First Claim
1. A vision system for a vehicle, said vision system comprising:
- a plurality of imaging sensors disposed at the vehicle and having respective exterior fields of view, each of said imaging sensors capturing image data;
a control disposed at the vehicle;
wherein said imaging sensors are connected to said control via respective ones of a plurality of single core coaxial cables;
wherein each said single core coaxial cable commonly carries (i) image data from the respective imaging sensor, (ii) power to the respective imaging sensor and (iii) communication data;
wherein each of said imaging sensors is operable to transmit calibration data to said control;
wherein each of said imaging sensors transmits calibration data when the respective imaging sensor is triggered to transmit calibration data;
wherein said vision system, responsive to receipt of calibration data by said control, is operable to identify the respective one of said imaging sensors transmitting the received calibration data; and
wherein each of said imaging sensors transmits calibration data responsive to detection of a particular pattern in the field of view of the respective imaging sensor.
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Abstract
A vision system for a vehicle includes a plurality of imaging sensors disposed at the vehicle and having respective exterior fields of view, with each of the imaging sensors capturing image data. The imaging sensors are connected to a control via respective ones of a plurality of single core coaxial cables. Each single core coaxial cable commonly carries (i) image data from the respective imaging sensor, (ii) power to the respective imaging sensor and (iii) communication data. Each of the imaging sensors is operable to transmit calibration data to the control. Each of the imaging sensors transmits calibration data when the respective imaging sensor is triggered to transmit calibration data. The vision system, responsive to receipt of calibration data by the control, is operable to identify the respective one of the imaging sensors transmitting the received calibration data.
346 Citations
20 Claims
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1. A vision system for a vehicle, said vision system comprising:
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a plurality of imaging sensors disposed at the vehicle and having respective exterior fields of view, each of said imaging sensors capturing image data; a control disposed at the vehicle; wherein said imaging sensors are connected to said control via respective ones of a plurality of single core coaxial cables; wherein each said single core coaxial cable commonly carries (i) image data from the respective imaging sensor, (ii) power to the respective imaging sensor and (iii) communication data; wherein each of said imaging sensors is operable to transmit calibration data to said control; wherein each of said imaging sensors transmits calibration data when the respective imaging sensor is triggered to transmit calibration data; wherein said vision system, responsive to receipt of calibration data by said control, is operable to identify the respective one of said imaging sensors transmitting the received calibration data; and wherein each of said imaging sensors transmits calibration data responsive to detection of a particular pattern in the field of view of the respective imaging sensor.
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2. A vision system for a vehicle, said vision system comprising:
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a plurality of imaging sensors disposed at the vehicle and having respective exterior fields of view, each of said imaging sensors capturing image data; a control disposed at the vehicle; wherein said imaging sensors are connected to said control via respective ones of a plurality of single core coaxial cables; wherein each said single core coaxial cable commonly carries (i) image data from the respective imaging sensor, (ii) power to the respective imaging sensor and (iii) communication data; wherein each of said imaging sensors is operable to transmit calibration data to said control; wherein each of said imaging sensors transmits calibration data when the respective imaging sensor is triggered to transmit calibration data; wherein said vision system, responsive to receipt of calibration data by said control, is operable to identify the respective one of said imaging sensors transmitting the received calibration data; and wherein each of said imaging sensors transmits calibration data that comprises an overlay in the image data captured by the respective imaging sensor.
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3. A vision system for a vehicle, said vision system comprising:
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a plurality of imaging sensors disposed at the vehicle and having respective exterior fields of view, each of said imaging sensors capturing image data; a control disposed at the vehicle; wherein said imaging sensors are connected to said control via respective ones of a plurality of single core coaxial cables; wherein each said single core coaxial cable commonly carries (i) image data from the respective imaging sensor, (ii) power to the respective imaging sensor and (iii) communication data; wherein each of said imaging sensors is operable to transmit calibration data to said control; wherein each of said imaging sensors transmits calibration data when the respective imaging sensor is triggered to transmit calibration data; wherein said vision system, responsive to receipt of calibration data by said control, is operable to identify the respective one of said imaging sensors transmitting the received calibration data; and wherein, when initially powering up said vision system, a transceiver of each of said imaging sensors is tuned to an initial communication mode, which is suitable for communication with at least one of (i) said control, (ii) a communication interface of said vision system and (iii) a display device of said vision system, and wherein a communication protocol is transmitted during the initial communication mode. - View Dependent Claims (4)
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5. A vision system for a vehicle, said vision system comprising:
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a plurality of imaging sensors disposed at the vehicle and having respective exterior fields of view, each of said imaging sensors capturing image data; a control disposed at the vehicle; wherein said imaging sensors are connected to said control via respective ones of a plurality of single core coaxial cables; wherein each said single core coaxial cable commonly carries (i) image data from the respective imaging sensor, (ii) power to the respective imaging sensor and (iii) communication data; wherein each of said imaging sensors is operable to transmit calibration data to said control; wherein each of said imaging sensors transmits calibration data when the respective imaging sensor is triggered to transmit calibration data; wherein said vision system, responsive to receipt of calibration data by said control, is operable to identify the respective one of said imaging sensors transmitting the received calibration data; and wherein communication via each of said single core coaxial cables is via Low Voltage Differential Signaling (LVDS), and wherein said LVDS interfaces with circuits with a first differential signal node comprising a core of the respective single core coaxial cable and a second differential signal node comprising a shield of the respective single core coaxial cable. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A vision system for a vehicle, said vision system comprising:
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a plurality of imaging sensors disposed at the vehicle and having respective exterior fields of view, each of said imaging sensors capturing image data; a control disposed at the vehicle; wherein said imaging sensors are connected to said control via respective ones of a plurality of single core coaxial cables; wherein each said single core coaxial cable commonly carries (i) image data from the respective imaging sensor, (ii) power to the respective imaging sensor and (iii) communication data; wherein each of said imaging sensors is operable to transmit calibration data to said control; wherein each of said imaging sensors transmits calibration data when the respective imaging sensor is triggered to transmit calibration data; wherein said vision system, responsive to receipt of calibration data by said control, is operable to identify the respective one of said imaging sensors transmitting the received calibration data; and wherein said vision system utilizes at least one of (i) an ETHERNET communication protocol, (ii) a Gigabit Multimedia Serial Link (GMSL) protocol and (iii) a FPD-Link III protocol. - View Dependent Claims (18, 19, 20)
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Specification