POS Overlay

tomhenderson · Post by **tomhenderson** » Mon Apr 13, 2009 5:18 am

I'm about to start looking at zoneminder as a replacement for an old cctv system (downloading the virtual appliance now). One feature we'd like is pos overlay - our point of sale tills can send out text data over UDP when a user makes a sale/order/etc. Can zoneminder record this type of data and display it alongside footage?

A little vague I know - what other info should I provide?

coke · Post by **coke** » Mon Apr 13, 2009 2:43 pm

What's your POS app using as a back-end? If it's database engine is MySQL (like ZoneMinder's), you could probably rig something up, with some time and effort.

kingofkya · Post by **kingofkya** » Mon Apr 13, 2009 10:01 pm

it would require some coding but if you were to send a tcip packet from the POS system it could be logged to zoneminders notes field. tkae a look at zmfilter

tomhenderson · Post by **tomhenderson** » Mon Apr 13, 2009 11:45 pm

coke: The POS database is firebird. There are php extensions for firebird, but since the till has the capacity to send the relevant data out I'd rather just record that as it's sent.

kingofkya: interesting - what's zmfilter?

Post by **zoneminder** » Tue Apr 14, 2009 11:56 am

This has been done successfully before using zmtrigger.pl though may take some minor customisation.

Basically you can connect to zmtrigger.pl using a variety of methods and 'push' the POS data which can then trigger an event to be recorded store the POS details in the event Notes field. You can also pass in an additional text string to embed in the actual image frames using the %Q token in the timestamp. This would allow you to record the transaction number for instance in the image itself and the details in the other event fields.