Some questions - Githubissues

veryresto / rfid_vi

Utilizing existing VI's from ni.com to make RFID Reader on LabVIEW. [Moved to new repo]

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Some questions #1

Open Wangshuai8156 opened 4 years ago

Wangshuai8156 commented 4 years ago

There are many versions in your project. I don't know which version is the correct one.Can you write more details in your Readme section? What is the specific model of USRP you use?Is it feasible to try in your USRP?Moreover, the receiver does not have the function of reading EPC, and the sender can not send some commands. I am a novice, eager for your guidance. Looking forward to your reply as soon as possible.

veryresto commented 4 years ago

This repository was used as personal notes. I don't really remember which one is the correct one. Yes, reading EPC wasn't done yet.

I wrote a blog intended for learning materials, probably can answers some of your questions. https://rfidciotskku.wordpress.com/

Wangshuai8156 commented 4 years ago

I am very glad to receive your reply. Thank you for your guidance, and I learned a lot from it. For a more detailed understanding, I still have some questions to ask you. First of all, is the antenna you used in your experiment the one that comes with the USRP-2922 device? Or buy two additional circularly polarized antennas? Secondly, do you use two USRP devices separately for sending and receiving or just one USRP? Finally, have you tried to experiment with commercial tags? Can ACK be observed on USRP with WISP5 tags?I don’t seem to receive ACK when using commercial tags. Thank you very much for your guidance during the busy schedule. looking forward to your reply!

veryresto commented 4 years ago

Those antennas are bought outside USRP.
I used 2 USRP because there was a strange problem (which will took long time to resolve) when using just one. It is written on the blog.
Not yet, just WISP5 tag. Those VIs still need a lot of correction and improvement in order to be compatible with other tag. -- The ACK can be observed. There are pictures of captured VI panel & also youtube video showing response from WISP5 tag, on the blog.