| ??? 03/05/10 05:02 Read: times |
#173867 - I was hoping you Responding to: ???'s previous message |
Joe Gold said:
At 125KHz you need quite a large magnetic field to energise tags at 500mm distance.
It's much more than just putting a RFID IC on a board, it requires LF RF design and tuning. Do you have this experince? If your customer just wants 1 reader - then there are plenty of RFID readers and tags on the market. ===> Why reinvent the wheel? <===== Consider - designing external physical enclosures that can reduce the read range requirement much less than 50CM. Consider - RFID Anticollision is tricky business and with RF you may get miss reads. Is the customer expecting 100% RFID reader reliability autonomously (without human intervention). Consider that Wallmart and Metro RFID systems are not 100% reliable (miss reads), even with the most sophisticated readers. Joe Hi Joe: Do you know of good link for white paper on wiegand 26 with all the details. You seem to know lot about this subject. Thanks in advance. Most links don't give enough information on this. Best regards, Ralph Sac |
| Topic | Author | Date |
| RFID Project | 01/01/70 00:00 | |
| You need to be specific! | 01/01/70 00:00 | |
| thanks | 01/01/70 00:00 | |
| anti-collision | 01/01/70 00:00 | |
| good to know | 01/01/70 00:00 | |
| I might have oversimplyfied the thing | 01/01/70 00:00 | |
| You have | 01/01/70 00:00 | |
| Range | 01/01/70 00:00 | |
| temperature | 01/01/70 00:00 | |
| 500mm Read Range | 01/01/70 00:00 | |
| Ready made solution | 01/01/70 00:00 | |
| Wiegand 26 can't find enough | 01/01/70 00:00 | |
| not yet | 01/01/70 00:00 | |
| I was hoping you | 01/01/70 00:00 | |
| How much research did you actually do? | 01/01/70 00:00 | |
| Andy looked at that link | 01/01/70 00:00 | |
| What do you mean by "White Paper" | 01/01/70 00:00 | |
Your right that's not a white paper | 01/01/70 00:00 | |
| Maybe I don't need Wiegand 26 | 01/01/70 00:00 | |
| Tag Talking | 01/01/70 00:00 | |
| Anticollision | 01/01/70 00:00 | |
| not an answer, but | 01/01/70 00:00 |