The application of autonomous vehicles has grown dramatically in recent years. Not only\nhas the rail-guided vehicle (RGV) been used widely in traditional production lines, the automatic\nguided vehicle (AGV) has also been increasingly used. Positioning and path planning are two major\nfunctions of autonomous vehicles; however, there are many ways to fulfill the above requirements.\nThe infrared remote control has been heavily and successfully used in home appliances for decades,\nwhich has encouraged us to apply this mature and cost-effective technology to an autonomous vehicle.\nBy decoding the coded signal from the infrared light-emitting diode (LED), which is equipped on\nthe ceiling, the autonomous vehicle can be positioned with an accuracy of less than 50 mm. On the\nother hand, by changing the beam pattern of infrared light from the ceiling, an invisible route can be\nproduced on the ground. That is to say, instead of the traditional rail-guided method, these invisible\npaths can guide the autonomous vehicle. We have implemented a prototype of an autonomous\nvehicle system based on the above concept, with the aim of creating a simple and reliable approach\nfor the navigation of an indoor autonomous vehicle
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