Author | Topic: RFID | |
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Scott Krise | RFID on Thu, 05 Mar 2020 15:19:53 -0500 Hello Everyone, Has anyone used RFID technology in their Xbase apps? I'm new to RFID...just trying to understand how the communication will take place between my app and the reader. Do I poll each reader to see what rfid tags are within its area? Or can the reader just export data to some format that I can read to see what is where? Im looking for very high level advice at this point just to understand some general concepts. Thanks, Scott | |
Jan Escholt | Re: RFID on Fri, 06 Mar 2020 05:49:35 +0100 Hi Scott, with one customer I use RFID technology. The readers work are attached via USB and work like a keyboard. So there is no difference getting the data wether they come in from tge keyboard or the RFID reader. Jan Am 05.03.2020 um 21:19 schrieb Scott Krise: > Hello Everyone, > > Has anyone used RFID technology in their Xbase apps? I'm new to > RFID...just trying to understand how the communication will take place > between my app and the reader. Do I poll each reader to see what rfid > tags are within its area? Or can the reader just export data to some > format that I can read to see what is where? Im looking for very high > level advice at this point just to understand some general concepts. > > Thanks, > > Scott | |
Andreas Gehrs-Pahl | Re: RFID on Fri, 06 Mar 2020 01:18:03 -0500 Scott, >Has anyone used RFID technology in their Xbase apps? I'm new to RFID...just >trying to understand how the communication will take place between my app >and the reader. Do I poll each reader to see what rfid tags are within its >area? Or can the reader just export data to some format that I can read to >see what is where? Im looking for very high level advice at this point just >to understand some general concepts. It depends on what RFID reader you are using. It might have a serial, USB, or possibly an Ethernet connection. RFID readers usually work the same as (credit) card readers or bar-code scanners. That means that they usually inject alphanumeric characters directly into the keyboard buffer, as if you type them on a keyboard. There are also RFID scanner devices that can host embedded applications, but those are usually larger, fixed readers, rather that hand-held devices. Hope that helps, Andreas Andreas Gehrs-Pahl Absolute Software, LLC phone: (989) 723-9927 email: Andreas@AbsoluteSoftwareLLC.com web: http://www.AbsoluteSoftwareLLC.com [F]: https://www.facebook.com/AbsoluteSoftwareLLC | |
Scott Krise | Re: RFID on Thu, 12 Mar 2020 14:00:07 -0400 Thanks Jan and Andreas for the responses. My reply is intended for both of you. So, I will be using a fixed scanner not a handheld. In my particular application, I simply want to know when RFID tags enter and leave a room where the reader and antennas are placed. So are you both saying that if I had one of my xbase apps running and connected to the reader via a USB cable for example, the reader would just pass data to whatever field in my app that is being displayed when something enters or leaves the field of view? No different than if someone just typed the information into the field using the keyboard? I was under the impression that the reader somehow manages a list of tags that are within its field of view, then my App would need to read those transactions? "Andreas Gehrs-Pahl" wrote in message news:g4940646x9wk$.37hi3ivekzpt$.dlg@40tude.net... Scott, >Has anyone used RFID technology in their Xbase apps? I'm new to RFID...just >trying to understand how the communication will take place between my app >and the reader. Do I poll each reader to see what rfid tags are within its >area? Or can the reader just export data to some format that I can read to >see what is where? Im looking for very high level advice at this point just >to understand some general concepts. It depends on what RFID reader you are using. It might have a serial, USB, or possibly an Ethernet connection. RFID readers usually work the same as (credit) card readers or bar-code scanners. That means that they usually inject alphanumeric characters directly into the keyboard buffer, as if you type them on a keyboard. There are also RFID scanner devices that can host embedded applications, but those are usually larger, fixed readers, rather that hand-held devices. Hope that helps, Andreas Andreas Gehrs-Pahl Absolute Software, LLC phone: (989) 723-9927 email: Andreas@AbsoluteSoftwareLLC.com web: http://www.AbsoluteSoftwareLLC.com [F]: https://www.facebook.com/AbsoluteSoftwareLLC | |
Andreas Gehrs-Pahl | Re: RFID on Thu, 12 Mar 2020 19:32:08 -0400 Scott, >I was under the impression that the reader somehow manages a list of tags >that are within its field of view, then my App would need to read those >transactions? This use-case scenario is a distinct possibly, especially with larger and permanently installed devices. Your scanner (or the embedded software running on it) might have an API or agents (small apps) that run on your computer, or it might connect (via Ethernet) to a server, where the data is stored and a service collects the data from (possibly multiple) scanners. You probably need to find out the exact scanner model and any software associated with it. The manuals (possibly available on the Internet) should give you a better idea about the architecture you are dealing with, and what the possible connection options and requirements are. Hope that helps, Andreas Andreas Gehrs-Pahl Absolute Software, LLC phone: (989) 723-9927 email: Andreas@AbsoluteSoftwareLLC.com web: http://www.AbsoluteSoftwareLLC.com [F]: https://www.facebook.com/AbsoluteSoftwareLLC |