Method for calibrating electronic tag with temperature sensor

Abstract

The invention discloses a method for calibrating an electronic tag with a temperature sensor. The method comprises the following steps: S1, generating a series of high-precision calibrating tags in different temperature intervals by a measuring-level calibrating incubator; S2, when calibrating a temperature-sensitive electronic tag, preparing the common incubator, putting a to-be-calibrated tag and a standard tag within a calibrating temperature point interval range into the appointed position of the common incubator, performing temperature scanning, measuring the temperature values of the twotemperature point standard tags and the output voltage value of the corresponding to-be-calibrated tag, and calibrating parameters of the to-be-calibrated tag according to the acquired temperature value of the standard tag and the voltage value of the corresponding to-be-calibrated tag; and S3, writing the parameters of the to-be-calibrated tag after calibration into the to-be-calibrated tag. Theaim of calibrating the electronic tag with the temperature sensor can be fulfilled, the measuring-level calibrating incubator is prevented from being used for calibrating, the temperature stabilizingtime is short, the stable precision requirement is low and the calibrating cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of radio frequency identification (Radio Frequency Identification, RFID), in particular to a method for calibrating an electronic tag with a temperature sensor. Background technique [0002] Radio frequency identification technology (RFID) is a non-contact automatic identification technology implemented by radio frequency signals. It uses radio frequency to conduct non-contact two-way communication, so as to achieve automatic identification of target objects and related data collection. The ultra-high frequency (UHF) tag used in the EPCC1G2 protocol refers to an RFID tag with a working frequency of 860MHz to 960MHz, which has the advantages of long read-write distance, fast reading speed, and wide range of action. [0003] With the rapid development of the Internet of Things technology, the application of integrating item identification technology and sensing technology is becoming more and more important. W...

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Problems solved by technology

[0004] However, no matter what the method is, there may be deviations in the production process of the electronic tag and there may be errors in the initial collection of temperature data, so that the collected temperature cannot accurately reflect the environmental conditions. Therefore, the electronic tag with a temperature sensor must be calibrated

[0005] In the prior art, calibration thermostats are generally used to calibrate the electronic tags with temperature sensors one by one, but the disadvantage of this method is: because the calibration thermostats are relatively expensive, only professional institutions will have calibration thermostats. Each electronic tag needs to be calibrated one by one, which is time-consuming and labor-intensive, and the cost is high

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