基于路徑規(guī)劃及避障的自主導(dǎo)覽互動講解機(jī)器人研制
[Abstract]:The project requires the development of a self-guided interactive explaining robot, which is mainly used in large exhibition halls, exhibition centers, and other places to guide visitors to visit along a fixed route, with the function of avoiding obstacles. And at several fixed points to the interviewee explanation and simple dialogue. In this lesson, Robotino robot is used as the research platform to analyze and verify the feasibility of the robot's path tracking, obstacle avoidance and fixed point location. Firstly, this paper introduces the hardware and software configuration of Robotino based on the Robotino robot produced by Festo Company. Then, the research and test of camera track and inductance sensor track are carried out. Among them, the camera track is greatly affected by light, the inductance sensor track is easily affected by road debris, and both of them need to have obvious indication marks. It is not beautiful enough in the practical application environment. Considering these factors and referring to the Freescale electromagnetic group competition, the electromagnetic track mode is not easily disturbed by the external environment, and the operation is more stable, and the wire can be buried in advance. This scheme is more in line with the requirements of the project, so EMR is chosen as the final path planning method of the robot. Then two kinds of electromagnetic detection schemes are compared, which are based on two coils and seven coils, and the experimental simulation results show that the dual-coil detection method is chosen as the final detection scheme of robot path tracking. Secondly, the obstacle avoidance algorithm based on ultrasonic sensor, infrared distance sensor and information fusion is analyzed. Combined with 9 infrared sensors and anti-collision sensors of Robotino and inertial navigation technology, three obstacle avoidance strategies are proposed to deal with the complex situation in the application environment, and verified on the robot platform. Finally, the problem that the robot needs to stop moving at several fixed points on the track path in the project is studied. Wireless radio frequency technology based on RFID can realize contactless identification, can be embedded, and each radio frequency card sequence number is unique to meet the needs of robot fixed point location. The Mifare1 RF card produced by Philips is selected in this paper. Its working frequency is 13.56 MHz. The communication mode between RF card and reader and the installation position on Robotino robot are introduced. The feasibility of the card is verified by experiments.
【學(xué)位授予單位】:蘭州理工大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TP242
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