Abstract
Auto anti-collision technology is one of the main research subjects of automobiles’ safety technology. Aiming at the key technology of Auto anti-collision, measuring the distance from obstacles, based on the theory of phase laser distance ranging, Laser Diode (LD) distance-measuring system for auto anti-collision has been developed to solve the problem of on-line measuring distance technology in middle to long distance utilizing the good characteristics of LD when modulating its optical intensity and adopting typical kinds of filter techniques in this paper. By theoretical analysis, adopting typical kinds of filter techniques can reduce the interference of strong light, so distance-measuring range can be 0.5–100 m in daytime or 1–200 m at night. And more, from theoretical analysis and experiment result, it can guarantee the high measuring resolution which can be less than 24.5 mm, utilizing the method of two Laser Diode optical intensity modulating wavelength and complimenting precise calibration and revision. The idea of LD distance-measuring technology is novel and feasible and this technology can be applied in Auto anti-collision.
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References
Carol D Eberhard. Collision Warning.Automotive Engineering, 1997,105(3): 86–90.
Shoil Chi Tanaka. Scanning Laser Radar for on-the-Road Distance Measuring.Automotive Engineering, 1997,105 (7): 49–52.
Yu Cheng-bo, Fang Wen-lue, Zhen You-geng. Development on Microcomputer Control System of Automobile Laser-Radar Automatic Avoidance Collision.Chinese Journal of Science Instrument, 2001,22(4): 428–430(Ch).
Den Kai-fa.Laser Technology and Its Applications. Changsha: National University of Defense Technology Press, 2002(Ch).
Sun Xiao-ming.Theory and Application of Interferometry Using Laser Diode. Beijing: Industry National Defense Press, 1998(Ch).
Li Jin-zhen.Optic Handbook. Xi’ an: Shanxi Science and Technology Press, 1987(Ch).
Hao Yong-xiang.Standard Data Table of Blackbody. Beijing: Science Press, 1984(Ch).
Hao Yong-xiang.Photometric Theory. Beijing: Beijing Normal University Press, 1988(Ch).
Xiong You-lun.Mathematics Method of Precision Measurement. Beijing: China Metrology Press, 1989(Ch).
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Foundation item: Supported by the National Natural Science Foundation of China (59675080, 59805006) and Wuhan Chenguang Foundation (20025001001)
Biography: Zhang Xin-bao (1965-), male, Associate professor, research direction: precise mechanism and instrument.
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Xin-bao, Z., Hong, L. & Zhu, L. Distance-measuring technology using LD for auto anti-collision. Wuhan Univ. J. Nat. Sci. 9, 83–88 (2004). https://doi.org/10.1007/BF02912724
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DOI: https://doi.org/10.1007/BF02912724