Hello All, I hope I am posting this in the right place?
I was recently a victim of a burglary, they come in through my fence up the field which they cut down, pushed my quad of of the open fronted garage 200m up the field, removed the ignition barrel and drove off through the gap they had made, there are very few places where they could have done this, it mainly close old trees, hawthorn and dog rose and there is banking in some places.
I have increased security around the garage and house but I am looking for solution for the fence, its a stock fence with a wire on top, there is also a wire on the inside of the trees.
The fence runs for 400m between the road and our paddocks.
I am thinking of running a dual wire right the way along it and joining at the far end, the end by the house measure the resistance (resistance change), if there is a significant drop/increase set off a strobe in my drive and send me a text, I am ok with setting up the strobe and text just wondering if anyone had any better ideas about the measurement, I was thinking of regular twin speaker type wire, needs to be waterproof, fairly abrasion resistant flexible enough to wrap around the top wire, should I be measuring resistance or capacitance? is there a recommended wire for the purpose? (I have seen plastic fibre optic but its expensive)
what frequency would you measure and what variance?
It would also be a good indicator of trees coming down over the road or other issues
any opinions or expert advice would be appreciated
Dano
in order to twist it around the top wire I will have to make several joints so I am thinking of making those joints intentionally weak or break aways, perhaps some clever quick release if anyone has any ideas
the fibre solution has a hard fixing every post that presumably distorts the core and they measure the attenuation change. the wire alternative would have to be quite robust to reduce false positives (which the optics people claim not to have)
old style solution, run bare wire on insulators along top and feed to input of high gain amp. It'll squeal if anything touches the wire. Add a squelch circuit to mute when idle. Added benefit is that it'll look like cattle fence and make them reluctant to touch. Also, get a dog to patrol the fence line at night. It had to be someone in the neighborhood who knew your layout. This wasn't a spur of the moment theft.
so by chance there was some electric fencing in the gap to stop the shetlands going through, it wasnt attached but they burnt through it with a lighter then I guess hit it with a stick.
I have a doberman but shes indoors at that time (00:30 when they stole it), it a 14acre field so patrolling all night not really an option. dont want a dog outside all night
We are getting five geese to do the job.
I did get an alert a few days later at 3am, got the dog and set her off in the field, she was utterly superb, you would not have wanted to be in the field uninvited thats for sure
you are right they knew when I go to bed and they knew where the quad was kept, they marked the gap road side and then moved the marker so they could find their way out
we have since found other sticks in gaps which I have filled to the best of my ability at this time
new quad has a state of the art tracker, smart water and immobiliser plus a bloody great ground anchor (which is inconvenient but not as inconvenient as losing a quad)
all cameras link to house lights via IFTTT
just making it as difficult for them as possible but it reduces my enjoyment of the place and its hard work to redo fences and implement security, plus costly
