Gert Frølund PEDERSEN,Jan Hvolgaard MIKKELSEN,Ming SHEN,Shuai ZHANG,Dong Min KIM,Ondrej FRANEK
申请号：
US16615973
公开号：
US20200097788A1
申请日:
2018.05.24
申请国别(地区):
US
年份:
2020
代理人:
摘要：
The present disclosure relates to a radio-frequency identification system for a container, such as a cryogenic container, comprising: a large number of radio-frequency identification tags for cryogenic straws, preferably at least 100 radio-frequency identification tags, each radio-frequency identification tag attachable to or embeddable in a cryogenic straw； an interrogation unit adapted to be placed or integrated inside the cryogenic container； wherein the interrogation unit and radio-frequency identification tags are configured to operate with a frequency of at least 30 MHz. The disclosure further relates to a method of identifying a large number of radio-frequency identification tags in a cryogenic container, preferably at least 100 radio-frequency identification tags, the method comprising the steps of: configuring a radio-frequency identification interrogation unit to transmit radio-frequency interrogation signals in the container with a frequency of at least 30 MHz； configuring the radio-frequency identification interrogation unit to operate in a plurality of different signal propagation modes such that the cryogenic container is divided into a plurality of propagation zones, wherein each propagation zone is associated with a corresponding propagation mode, and wherein only the radio-frequency identification tags within a specific propagation zone are excited when the interrogation unit is in the corresponding propagation mode； and configuring the radio-frequency identification interrogation unit to receive radio-frequency response signals from the radio-frequency identification tags.
