Multiple wavelength automatic switching assistant system for driving automobile at night

An automatic switching, multi-wavelength technology, applied in the field of vehicle assisted driving systems, can solve problems such as undiscovered and unable to solve mutual interference elimination, and achieve the effect of improving visibility, improving safety, and ensuring driving safety.

Inactive Publication Date: 2008-03-26
西安华金光电系统技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This makes even if the vehicle is equipped with an infrared nighttime assisted driving system, it cannot solve the problem of mutual elimination of interference when similar vehicles return.
[0012] The pre

Method used

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  • Multiple wavelength automatic switching assistant system for driving automobile at night

Examples

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Comparison scheme
Effect test

Embodiment 1

[0025] Referring to Figure 1, the multi-wavelength automatic switching vehicle night driving assistance system is a vehicle night driving assistance device that uses an auxiliary infrared light source to improve the automatic control of road infrared lighting conditions and performs multi-wavelength automatic switching, including: variable wavelength infrared lighting system 1 , Hyperfocal infrared imaging optical system 2, infrared imaging and signal processing system, ECU3 with automatic wavelength conversion control output, projection or screen display and target prompt system. The ECU3 with automatic wavelength conversion control output is directly connected with the control signal to the variable wavelength infrared lighting system 1, the hyperfocal infrared imaging optical system 2 and the infrared imaging and signal processing system. The infrared imaging and signal processing system has an infrared window with a protective coating to protect the infrared imaging and sig...

Embodiment 2

[0035] The overall scheme and system configuration are the same as in Embodiment 1. The driver turns on the multi-wavelength automatic switching vehicle night driving assistance system, and randomly lights up the variable-wavelength infrared lighting system 1 with a center wavelength of 850nm. The illuminated objects include cars, roads, and other scene reflections. The returned light enters the hyperfocal infrared imaging optical system through the infrared window with protective coating, and it is found that the imaging is not clear enough, indicating that the illumination of the other vehicle is affected (the wavelength is the same or close), and then it is automatically converted by the vehicle ECU3 with automatic wavelength conversion control output The central wavelength of illumination of the variable wavelength infrared lighting system 1 is 880nm, that is, another group of infrared light-emitting diodes with a central wavelength of 880nm is used to work, and at the same ...

Embodiment 3

[0037] The overall scheme and system configuration are the same as in Example 1. When a car meets a passing car, the central wavelength of the lighting used by the variable wavelength infrared lighting system 1 of the vehicle is 940nm. It is found that the imaging is not clear enough. After the detector of the infrared imaging and signal processing system The signal is transmitted, and the central wavelength of the illumination of the infrared lighting system is automatically converted to 850nm through the vehicle ECU with automatic wavelength conversion control output. The illuminated objects including cars, roads and other scenes are clearly imaged, avoiding mutual interference, and ensuring the safety of driving.

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Abstract

This invention relates to a sort of auxiliary system of the car night drive with multi-wavelength automatic transfer, and it consists of the variable wavelength infrared illuminating system, the hyperfocal distance wavelength automatic transfer system, the hyperfocal distance infrared imaging optical system, the infrared imaging and signal processing system, the ECU which has the wavelength automatic transfer control export, and the projection or screen and the object clew system. The illuminating wavelength of the variable wavelength infrared illuminating system is changed by the ECU which has the wavelength automatic transfer control export, at the same time it changes the corresponding infrared window which has the protection cladding and it enters the optical filter box of the hyperfocal distance infrared imaging optical system in order to obstruct the disturbance of the opposite lamp-house and to advance infrared illuminating condition of the road, so it realizes the imaging in focus in order to debase the accident rate and to advance the security of the car. It can select the different imaging wavelength automatically when the congener car encounters. This invention can apply the even more complicated road condition, its low cost and systematization and compaction can be used for the night drive auxiliary system of the motor vehicles.

Description

technical field [0001] The invention belongs to the technical field of vehicle auxiliary driving systems, and further relates to the field of vehicle safety driving assistance systems at night by using a multi-wavelength infrared lighting system, in particular to a multi-wavelength automatic switching vehicle night driving assistance system. Background technique [0002] According to survey data, in highway traffic, the risk of accidents when driving at dusk and at night is much higher than driving during the day. Although the traffic flow on the highway at night is much less than that during the day, and the average traffic density is reduced to about 15% at night, the probability of major traffic accidents at night is twice as high as that during the day, and more than 1 / 3 of major traffic accidents occur in at night. The main safety hazard brought by driving at night lies in the lighting conditions of the road surface, especially on the road where pedestrians and vehicle...

Claims

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Application Information

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IPC IPC(8): G03B15/00H04N5/33H04N7/18F21S8/10F21V9/08
Inventor 刘卫国蔡长龙
Owner 西安华金光电系统技术有限公司
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