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Software motion detection using visual light cameras is prone to false positives. An actual pyroelectric electronic motion sensor is much more reliable. However, on a low-cost pc security system with video capture cards, those with the 4 bnc ports for connecting cameras, motion detection is done via the software. If someone made a pyroelectric like electronic motion sensor that could be connected as a camera to one of the bnc ports, but produce colored images in the infrared band, not for visual recognition of objects by people, but for presenting high-contrast infrared to the software, motion detection could be highly improved. The infrared patters could be represented by high contrast colors from a 16 or 256 color palette. (Think Predator, the movie, how the alien seen things with his visor or whatever it was.) It's called FLIR, or Forward Looking InfraRed. Consider a large room with two camera type devices monitoring the area. One being a typical CCTV camera to provide a visual image and the second a pseudo camera that only sees infrared and generates high contrast patters to the software. Motion detection would only need to be enabled on the motion sensor camera that could trigger recording on the other via most low-end software. I've been searching for a pyroelectric style motion sensor that has a bnc connector to interface with typical CCTV cards. The closest thing I have come up with so far is this X10 product: --- link was here --- (lame forum function restricted my providing the link.) However, it is actually a dual device and it has a multiple connectors. I don't believe it will perform the task by interfacing with an inexpensive bnc connector CCTV card. Any thoughts?

You have the UCC4 4 Port Video Capture Card clone otherwise known as the Pico Card. That's not an "RCA" jack, it is a phono jack for audio.

I've been experimenting in cctv and smart home tech for several years now. I was using the Pico software for a long time. I wrote Visual BASIC utilities that monitored memory addresses so I could trigger events based on motion detection by the software. This includes SMS message to phone, email, alarm sounds, and electronic door locks. It was a means of adding features to a software that was otherwise limited. Since I have learned Pico was not legitimate, I switched to zoneminder on Linux where I have been experimenting with it for an alternative low cost cctv solution. My long-term goal is to write software that works with it for sales and installation. So far I've found zoneminder to be buggy and difficult to maintain. It is stable though. My programming ability on Linux platform is less sophisticated so I would like to find a windows solution to replace the Pico software I previously used. I live in the midwest United States and have a background in computer and electronics with over two decades in the industry.