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Regulation speed display apparatus of vehicle

  • US 10,227,038 B2
  • Filed: 04/06/2016
  • Issued: 03/12/2019
  • Est. Priority Date: 05/11/2015
  • Status: Active Grant
First Claim
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1. A regulation speed display apparatus of a vehicle, comprising:

  • a display device that displays a regulation speed to be applied to the vehicle;

    a camera that shoots a landscape in front of the vehicle to acquire image data of the landscape in front of the vehicle; and

    processing circuitry configured to detect a regulation speed indicated in a traffic sign appearing in the shot landscape on the basis of the image data and causing the display device to display the detected regulation speed as a standard regulation speed,wherein the processing circuitry is configured;

    to determine whether or not a traffic sign appearing in the shot landscape and indicating a regulation speed newly detected by the processing section circuitry is a traffic sign with an auxiliary sign on the basis of the image data;

    to cause the display device to display the newly detected regulation speed as the standard regulation speed when the processing circuitry determines that the traffic sign appearing in the shot landscape and indicating the newly detected regulation speed is not the traffic sign with the auxiliary sign;

    to cause the display device to display the newly detected regulation speed as the standard regulation speed when the processing circuitry determines that the traffic sign appearing in the shot landscape and indicating the newly detected regulation speed is the traffic sign with the auxiliary sign and the newly detected regulation speed is larger than a regulation speed already displayed as the standard regulation speed in the display device; and

    to cause the display device to maintain the display of the regulation speed already displayed as the standard regulation speed in the display device without causing the display device to display the newly detected regulation speed as the standard regulation speed when the processing circuitry determines that the traffic sign appearing in the shot landscape and indicating the newly detected regulation speed is the traffic sign with the auxiliary sign and the newly detected regulation speed is equal to or smaller than the regulation speed already displayed as the standard regulation speed in the display device;

    whereinthe display device is configured to display an auxiliary regulation speed in addition to the standard regulation speed, andthe processing circuitry is configured;

    to cause the display device to display the newly detected regulation speed as the auxiliary regulation speed when the processing circuitry determines that the traffic sign appearing in the shot landscape and indicating the newly detected regulation speed is the traffic sign with the auxiliary sign and the newly detected regulation speed is equal to or smaller than the regulation speed already displayed as the auxiliary regulation speed in the display device, andto cause the display device to display the newly detected regulation speed as the auxiliary regulation speed when the processing circuitry determines that the traffic sign appearing in the shot landscape and indicating the newly detected regulation speed is the traffic sign with the auxiliary sign and the display device has displayed no regulation speed as the auxiliary regulation speed.

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