A Dynamic Label Estimation Method

Abstract

The invention discloses a dynamic label estimation method. The main implementation process of the method includes: at time t1, broadcast an identification code str64t1, and the label records the identification code; at time t2, before receiving a reply from the label, first send the The identification code str64t1, if the identification code received by the tag is consistent with the previously stored one, it will reply the corresponding signal during the communication with the reader; when the tag confirms the reply signal, it will decode the known The logical frames corresponding to the labels and the unknown labels are respectively estimated, and the numbers of the known labels and the unknown labels are simultaneously estimated according to the logical frames. In solving the problem of dynamic label estimation, the present invention simultaneously estimates the quantity of two kinds of labels through the decoded logical frame, which greatly saves the time consumption.

Description

technical field [0001] The invention relates to the application field of RFID technology of the Internet of Things, in particular to a dynamic label estimation method. Background technique [0002] With the development and popularization of RFID technology, RFID has been used in many applications. It has been widely used in logistics management, electronic payment, article anti-counterfeiting, security access control, intelligent transportation, electronic business card, traditional media expansion, fast access, animal and plant management, indoor navigation and other fields. RFID technology refers to a way of using radio waves to identify RFID tags. In the Internet of Things environment, using RFID technology can assign a unique ID to each physical object, and can give a certain computing power to the physical object, so that each The object realizes "passive intelligence". Adhering to the core concept of "things connected" of the Internet of Things, RFID technology has m...

AI Technical Summary

Problems solved by technology

However, the efficiency of this method is relatively low, and it cannot solve the problem of time slot competition (when the lost label and the unknown label select the same time slot), which leads to monitoring failure

In addition, sometimes the specified accuracy requirements cannot be met

Because it needs to know the number of unknown tags at time t1 to set parameters, however, the number of unknown tags cannot be determined before time t2 because the system is continuously changing

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