Radio Frequency Tag Reader and Its Interference Restraining Method
A radio frequency tag and card reader technology, applied in transmission noise suppression, instruments, inductive record carriers, etc., can solve the problems of imperfect supporting equipment for electronic tags, lack of card reader equipment, and immature technology for printing electronic tags, etc. Achieve the effect of low equipment cost, simplify label identification and reading equipment, and reduce system cost
Active Publication Date: 2016-01-20
睿芯(大连)股份有限公司
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] At present, the technology of printing electronic labels is not mature enough, mainly reflected in the fact that the supporting equipment of this kind of fully printed electronic labels is not perfect. It needs expensive testing instruments such as vector network analyzers to read the characteristics of the labels and then extract information. The lack of convenient The card reader device whose information is read
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0049] like figure 1 and figure 2 A radio frequency tag is shown.
[0050] The processing unit 22 uses a Cotext-M0 MCU, and the frequency source 11 uses an AD9911.
[0051] After the card reader starts to work, the MCU first performs initial configuration of the machine, frequency source 1 and display;
[0052] The MCU controls the frequency source 1 to generate a frequency sweep signal; the frequency sweep starts continuously at 100MHz, takes 100KHz as an interval, and ends at 115MHz, and records the frequency.
[0053] The filtering and amplifying module 3 filters the signal, filters out the signal outside the bandwidth of the useful signal, and then amplifies the signal to maintain a stable amplitude.
[0054] The frequency mixing and filtering module 4 performs frequency mixing and filtering on the input signal; for example, the original 100-115MHz signal is moved up by 800MHz to become a 900-915MHz radio frequency signal, and the out-of-band signal is filtered out and...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a radio frequency tag card reader and a barrage jamming method of the radio frequency tag card reader. The radio frequency tag card reader and the barrage jamming method of the radio frequency tag card reader comprise a frequency source which produces continuous swept-frequency signals, a directional coupler which is connected with the frequency source in an electric mode, an antenna which is connected with the directional coupler in an electric mode and outputs the continuous swept-frequency signals produced by the frequency source, a detector which is connected with the antenna in an electric mode and receives reflected signals of the antenna, and a processing unit which is connected with the detector in an electric mode. By the adoption of the technical scheme, the card reader based on continuous frequency sweeping is achieved, a tag identification and reading device can be greatly simplified, and the system cost is reduced. The radio frequency tag card reader and the barrage jamming method of the radio frequency tag card reader can be used for a matching card reader for printing tags, and used for item identification, anti-counterfeiting and traceability management in fields such as packaging and physical distribution.
Description
technical field [0001] The invention relates to a radio frequency tag reader and a working method thereof. Involving patent classification number G06 Calculation; Calculation; Counting G06K Data identification; Data representation; Record carrier; Background technique [0002] At present, the printing electronic label technology is not mature enough, mainly reflected in the fact that the supporting equipment for this fully printed electronic label is not perfect, and it is necessary to use expensive testing instruments such as vector network analyzers to read the characteristics of the label and then extract information. The card reader device whose information is read. The card reader itself has inconsistency in frequency characteristics, and the surrounding environment also has specific frequency interference, which affects the reading of tags by the card reader. Therefore, it is necessary to suppress this non-uniform frequency interference. Contents of the invention ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/00H04B15/00
Inventor 陈韦宁
Owner 睿芯(大连)股份有限公司