Automatic detection method for three-dimensional coordinates of RFID (Radio Frequency Identification) tag based on DLT

Abstract

The invention discloses an automatic detection method for the three-dimensional coordinates of an RFID (Radio Frequency Identification) tag based on DLT, which comprises the steps that an image collection platform is established; the RFID tag is collected, and an RFID tag image is obtained; pixel coordinates of the RFID tag and size pixels of the RFID tag are obtained; coordinates of the bottom ofa tag support are calculated by using a color matrix; the physical position of the vertical coordinate of the RFID tag is calculated by using a proportional algorithm; the physical position of the horizontal coordinate of the RFID tag is obtained by using a DLT algorithm; the three-dimensional coordinates of the RFID tag are obtained; and a computer drives a motor to control a conveyor belt to drive the RFID tag to move towards an RFID reader, when the RFID tag is read by an antenna of the RFID reader, a laser distance measuring sensor measures a distance value between the antenna of the RFIDreader and the RFID tag, and the distance value is stored in the computer. According to the invention, the detection result is accurate, and the detection result is not affected by the position of the RFID tag.

Description

technical field [0001] The invention relates to the field of RFID technology, in particular to the field of RFID tag coordinate detection, in particular, the introduction of DLT to calculate the position of the RFID tag belongs to the field of detection technology. Background technique [0002] Radio Frequency Identification (RFID), as a novel non-contact automatic identification technology, has been widely used in many fields such as modern logistics, intelligent transportation, production automation, etc., especially in the storage of goods in smart logistics that people pay close attention to. The application of information collection and goods inventory is particularly prominent. However, due to the rapid development of the Internet of Things and RFID technology, there is a lack of unified standards within the industry, and the actual performance of the Internet of Things application system lacks effective evaluation methods and detection methods. [0003] An important ...

AI Technical Summary

Problems solved by technology

If the position of the RFID tag is not good, there will be missing or misreading, and the advantages of the RFID system's reading performance will no longer exist.

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