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Vehicle intelligent method capable of automatically recognizing road speed-limit sign

A speed limit sign and automatic recognition technology, applied in the direction of vehicle parts, character and pattern recognition, instruments, etc., can solve problems such as maintenance and maintenance difficulties, deprivation of the driver's right to know the real-time driving status, lack of humanized management, etc.

Inactive Publication Date: 2009-08-19
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

"There are three obvious deficiencies in this patent: (1) huge investment cost, difficult maintenance and maintenance; The right to know the real-time driving status; (3) increase the workload of illegal handling at the exit of the expressway, which is likely to cause traffic jams at the exit

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  • Vehicle intelligent method capable of automatically recognizing road speed-limit sign
  • Vehicle intelligent method capable of automatically recognizing road speed-limit sign
  • Vehicle intelligent method capable of automatically recognizing road speed-limit sign

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Embodiment Construction

[0049] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0050] Such as figure 1 , 2 As shown, the vehicle intelligent method for automatically identifying road speed limit signs in the embodiment comprises the following steps:

[0051] Step 1. Build the hardware system and install three pinhole cameras on the vehicle. The first pinhole camera is installed at the center of the upper edge of the front-view glass frame of the vehicle. speed sign images; the second pinhole camera is installed in the center of the vehicle's front hood, adjust the appropriate installation angle, and is used to collect images of speed limit sig...

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Abstract

The invention relates to a vehicle intelligent method for automatically identifying road speed limit signs in the technical field of vehicle intellectualization. The vehicle intelligent method comprises the following steps: (1) acquiring road speed limit sign images respectively; (2) establishing speed limit sign template databases; (3) acquiring speed limit sign images; (4) carrying out reinforcement processing on the images and removing noise; (5) determining a searching area of the speed limit signs of the images; (6) transferring a speed limit sign template of a database of a corresponding type so as to carry out matching and identifying calculations; (7) automatically accumulating the template matching rate; (8) judging whether the vehicle is overspeed or not; (9) under the action of a control instruction, automatically limiting the speed of the vehicle within the range of the limit speed, and warning drivers to know limit speed information; and (10) repeating the process from the step (3) to the step (9). The vehicle intelligent method can further improve the automatic and intelligent level in the aspect of guaranteeing the vehicle to run safely, and cannot cause the vehicle to overspeed because of the neglect of the drivers.

Description

technical field [0001] The invention relates to a vehicle intelligent method in the technical field of information processing, in particular to a vehicle intelligent method for automatically identifying road speed limit signs. Background technique [0002] For the safety of roads and vehicles, urban roads and high-grade highways, especially expressways, must set vehicle speed limit signs on each road section, so as to remind vehicle drivers to control the speed and drive carefully, so as to avoid illegal or even traffic accidents due to speeding. cause a traffic accident. However, when there are few vehicles in front, the driver of the vehicle tends to neglect his own driving speed, resulting in speeding. Although with the advancement of science and technology, many roads have been installed with vehicle speed monitoring devices, but judging from their effects, they are basically punitive technical means and measures, warning drivers to obey traffic regulations through puni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W40/00B60W30/14B60W40/06G06K9/00B60R11/04
Inventor 张秀彬焦东升应俊豪李国芳
Owner SHANGHAI JIAO TONG UNIV
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