Method and device for deactivating ultrahigh frequency passive electronic tag
A passive electronic tag and electronic tag technology, applied in the field of radio frequency identification, can solve problems such as inability to erase data, achieve the effect of eliminating potential safety hazards and improving safety performance
Active Publication Date: 2013-09-25
中国电子技术标准化研究所 +3
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Problems solved by technology
[0003] Due to the low power consumption requirements of the electronic tag, the non-volatile memory cannot erase the data in the electronic tag in time. After the electronic tag is deactivated, the data in the electronic tag still exists in the non-volatile memory, which poses a security risk
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[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.
[0033] Such as figure 1 As shown, in the embodiment of the present invention, the processing flow of the UHF passive electronic tag inactivation method may include:
[0034] Step 101, the UHF passive electronic tag (hereinafter referred to as the electronic tag) receives the deactivation command sent by the reader at the end of the life cycle, and returns a reception response to the reader, wherein the deactivation command carries a notice to erase An indication parameter of the data, and the receiving response carries a time parameter;
[0035] Step 102. After rece...
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The invention discloses a method and a device for deactivating ultrahigh frequency passive electronic tag, wherein the method comprises the steps that: upon the end of life cycle, an ultrahigh frequency passive electronic tag receives a deactivating order sent by a reader and returns to a reception response to the reader, wherein the deactivating order carries an indicating parameter for the notification of data erasing, and the reception response carries a time parameter; after receiving the reception response, the reader sends a continuous carrier wave with corresponding duration to the electronic tag according to the time parameter in the reception response; the electronic tag receives the continuous carrier wave and erases the data according to the indicating parameter; and the electronic tag is subjected to deactivation according to the deactivating order. The method and the device can guarantee after the electronic tag is deactivated that the data in the electronic tag is totally erased and does not exist in a nonvolatile memory, thereby thoroughly avoiding hidden safety hazard and promoting the safety of the electronic tag to a large extent.
Description
technical field [0001] The invention relates to the technical field of radio frequency identification, in particular to a method and device for inactivating an ultra-high frequency passive electronic tag. Background technique [0002] In the field of radio frequency identification, UHF passive electronic tags (hereinafter referred to as electronic tags) receive electromagnetic field energy through antennas and supply power to chips. At the end of the electronic tag's life cycle, the electronic tag will be inactivated (non-physical damage) through the inactivation command, and the electronic tag will no longer respond to any commands from the reader, and the electronic tag will be invalid. The implementation method of electronic tag inactivation is to set the non-volatile memory inactivation flag inside the electronic tag, and read the value of the non-volatile memory when the electronic tag is powered on. If it is set, the electronic tag immediately enters the inactivation s...
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IPC IPC(8): G06K17/00
Inventor 耿力高林冯敬宋继伟袁理刘文莉沈红伟兰天刘伟峰王立
Owner 中国电子技术标准化研究所