Abstract:GPS has been offering commercial outdoor positioning services. However, it is not suitable for indoor positioning purposes because of the weak satellite signals indoors. Therefore, the ultrasound technology has been developed and applied to indoor positioning for automated guided vehicles (AGVs) or moving robots. Unfortunately, traditional trilateral ultrasound methods usually suffer from a narrow coverage range and low accuracy. For this reason, we firstly systematically analyze the effects of ultrasound wave… Show more
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