Last year for a construction project, I set up a remote IP camera, connected to router with 4G modem. I did have power at site, and I put the modem/router in a small locked rack in a pole barn. over 70000 pictures were sent to a remote computer running a free ftp server. pictures were triggered by motion, but wind, grass, trees will trigger a lot. I tried to turn motion sensitivity way down to minimize "false" trips. after the construction project, I made a time lapse video of the construction project, it alone is still over an hour. I'm trying to trim it way down, but haven't worked on it in awhile. Here's a couple pics from the camera, one caught the building inspector, and the other showing the amish framing crew at work. I designed the building, and the builder had an architect provide final stamped drawings.
IP camera
Amazon.com: Dahua 1.3 Megapixel 720P ONVIF 3.6mm 1/3" Aptina CMOS IP66 20m IR Bullet IP Camera: 12v PoE ICR H.264: Computers & Accessories
router that supports USB 4G modem
CradlePoint MBR95 Wireless 3G/4G Router at Amazon.com
USB 4G modem (I got it for $20)
Amazon.com: LG VL600 4G Broadband USB Modem / Aircard - Verizon: Electronics
I have 4 of these cameras, and I can pull up the view on my phone, direct from the camera's, without needing any other software or recorder. (I could not remote view with the 4g modem, now have cable internet)
As a reference, its 70' to the vehicle, 200' to the edge of the building,and 280' to the portapot on the right side, according to my cad drawing.
added a photo I just took from my phone, it's inside the front doors of the building, in total darkness.