Dynamic target positioning system and method with RFID and laser information integrated

Abstract

The invention discloses a dynamic target positioning system and method with RFID information and laser information integrated. A particle filter is used to integrate RFID signals and laser signals, thereby realizing accurate positioning on a dynamic target. The information acquired by the laser sensor is subjected to clustering processing, and the information after laser clustering at adjacent time is processed as a target speed. The RFID label signal intensity and the label phase information are acquired at the same time, the acquired signal intensity information is integrated to a particle filter updating stage, and the phase information at the adjacent time is processed as a target speed. Finally, the speed estimated by the laser information after clustering is matched with the speed estimated by the RFID phase, the best matched speed is selected and integrated in the article filter updating stage, and thus, a moving target can be positioned more accurately.

Description

technical field [0001] The invention belongs to the technical field of Internet of Things robots, and in particular relates to the design of a dynamic target positioning system and method for integrating RFID and laser information. Background technique [0002] With the rapid development of the Internet of Things technology, things and things, things and people are connected together through communication perception technologies such as intelligent perception, identification technology and the Internet, so as to realize intelligent identification, management and control. Wireless positioning has become an important part of the Internet of Things technology and has gradually entered people's lives, and location-based services (Location-based Services, LBS) have also attracted more and more attention. Radio Frequency Identification (RFID) uses radio frequency signals for object identification, which has the following outstanding advantages: non-contact identification, high-spe...

AI Technical Summary

Problems solved by technology

[0003] Many researchers at home and abroad have carried out research on RFID target positioning, but there are still many problems to be solved in this field. The traditional method uses signal strength to locate tags, because the signal strength is affected by metal or water in the environment. Larger, resulting in limited positioning accuracy

In addition, at home and abroad, it mainly focuses on the positioning of static RFID tags, and there are few studies on the positioning and tracking of dynamic tags, which are currently difficult to apply to mobile robot job sites.

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