智能小車控制器畢業(yè)論文中英文資料外文翻譯文獻(xiàn)-在線瀏覽
2024-11-05 11:27本頁面
【正文】 ed acquisition: Taking advantage of the feature that infrared light can change its reflective quality according to object surface of various colors. During running the car continuously sends infrared light to the ground, which will, either be reflected back by the white floor and received by the receiving tube in the car, or be absorbed by the black guide line and thus missed by the receiving tube. By this means the black guide line is positioned to identify the path for the car. Camera shooting acquisition: In certain resolution sample the image by interlaced scanning. When scanning a point, image sensor transfers the gray threshold into corresponding voltage which will be outputted via video signal port. As the car achieves auto tracking by recognizing the black guide line on the track, the image processing is a process of extracting the destination guide line. The task of image processing program is to identify the dots in the blackandwhite image and filter noise, record dot positions relative to the image, and finally, by algorithm of control strategy, realize tracking and turning of the car along the guide line. Installation of tracking infrared probe Choosing proper detection method and sensor is the important factor to achieve tracking. Here we choose infrared acquisition. Correct installation of device is also a decisive factor for acplishment of tracking circuit. In terms of simplicity, easiness, practicality and reliability, four infrared probes need be installed on the front chassis of the car to fulfill twostaged directional correction control to enhance the reliability of tracking. Four tracking sensors have been fixed, all in one line, among which L1 and R1 are primary sensors for direction control。 too close distance may damage the sensor and intensify the effect of diffuse reflection. (2) Due to mon DC motor adopted for it, the control of the car is not accurate and stable enough to perform a break turn unless several same photoelectric sensors are added to the bottom of the car. 5 Conclusion Intelligent car is a front subject which has synthesized many other subjects and has a widelyapplied prospect. It particularly helps to develop the present Chinese undergraduates’ imagination, practical abilities, team awareness, and hitech innovation capacity. References [1] Wu Binghua, Huang Weihua, Cheng Lei among others, Systematic Design of Intelligent Car Ba
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