Forgive me if I'm not using the proper terminology or not explaining this properly. This aspect of running a small business is foreign to me.
My wife and I run a small independent coffee shop and I'm the geek in charge. I've got m0n0wall running great with the customer wifi on DMZ and all our machines on a private LAN. We've got a recycled Pentium 4 running Debian stable for our Music Player Daemon server. Motherboard is a Tyan with real serial ports. We have a mid-line Casio cash register setup that has 2 serial ports. 1 is dedicated to the credit card machine. The other can be connected to a serial pole display. I understand that this second serial port outputs formatted text of all buttons pressed and transactions processed. This is also useful for overlaying this text with a CCTV camera connected to a DVR. Though, this setup limits how you can search for mistakes or theft, having to sift through hours of video. I'd like to do the following with Debian: Use the text from the serial port in conjunction with an IP network camera connected to our server. I'd like to be able to search the text for particular triggers, e.g., look at video whenever someone hits the NS (no sale) key to open the drawer. I think I can connect the Casio to one of the serial ports on the server and capture data through tty(?). The text would not necessarily need to be overlayed but must sync with the video. The Casio has a pretty accurate clock, running on 60Hz; the IP camera can sync via NTP on our m0n0wall router. I've Googled a few commercial solutions but they are very expensive and are proprietary. One is this: http://www.geovision.com.tw/english/Prod_GVDataV3E.asp I'm thinking something like this must have been done with Linux for other fields, e.g., scientific sensors outputting text on a live stream. Any ideas or suggestions? -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/20130409235527.GA28874@phobos
