False alarms: real causes, real fixes

A good system is not judged by what it does at rest, but by what happens in the ten seconds after a real detection. The moment two layers agree there is a person where there should not be, the sequence starts: an alert to your phone with the image of that moment, a recording of the zone, and — if you choose — active deterrence with lighting and siren.

You get a photo, not an anonymous buzz: you see whether it is the courier, the gardener or someone you don't recognise, and act with judgement instead of panic. In your area, where many homes are watched from a distance, that image is the difference between calling for nothing and calling with reason.

And the recording stays: an image obtained correctly, framed within your property, is usable evidence. The system does not just scare the intruder — it documents what happened.

A camera that sees beyond your fence can become a legal problem instead of protection. Spanish data-protection rules (LOPDGDD, art. 22) are clear: a visible information sign, a frame limited to your property and access points, and image retention of one month at most unless required otherwise.

We treat this as part of the project, not as paperwork afterwards. We minimise the field of view to your plot, place the mandatory signage and set retention to the legal limit. In your area, where many plots border the street or a neighbour, framing well from the start avoids the complaints that year after year rank among the most frequent before the data-protection agency.

Recording well is also recording within the law: an image obtained correctly is usable; one obtained by intruding on a neighbour can turn against you.

A house protected as a single block can only say “something is happening”. A house divided into zones says “someone is on the north line, by the pool”, and that difference is what lets you decide in seconds instead of stepping out blind.

We divide the your area plot into logical zones — perimeter, garden, access points, the immediate surround of the house — and each has its own rule: what is watched, at what hour, at what sensitivity. At night the outer perimeter can be armed while you move around inside; when away, everything. The same installation protects differently depending on the moment.

Zoning also narrows the alert: instead of one sensor tripping on everything, each zone reports separately, and the image tells you exactly where to look.

The best incident is the one that never happens. An intruder sizing up a house looks for the easy way in, and a plot that visibly detects, lights up and reacts is a plot that gets skipped for the next one. Visible deterrence does more work than any recording after the fact.

In your area we pair early detection with zoned response: when something enters the perimeter, that zone's lighting comes on and, where appropriate, the siren marks presence. It is not theatre: behind it is a real detection that has already classified this as a person, so the reaction does not trip on a cat or disturb the neighbours for nothing.

The goal is not to collect videos of attempts, but for there to be no attempt. A perimeter that reacts in time changes the equation for whoever is watching from outside.

Every technology has a blind spot. Radar covers volume but not fine detail; LiDAR measures a plane precisely but not the whole garden; thermal sees heat at night but does not decide what it is; AI decides but needs something to look. Selling any one of them as a complete solution is selling a hole.

The architecture that works in your area combines all four in layers: radar sweeps the open volume, LiDAR seals the critical planes, thermal covers the unlit lines and AI provides the judgement that says whether a detection is a person. The alert only fires when two layers agree, which is why it does not trip on a branch but does on a real intruder.

How many layers and where depends on your plot, not on a boxed package. That is why everything goes through the visit first.

In most homes the intruder does not climb the highest wall; they come in where there is already a gap made for coming in: the vehicle gate, the service door, the gardener's or the pool access. These are the points legitimate people use every day, and precisely for that reason the worst-watched.

In your area we treat those accesses as zones in their own right: detection that tells the expected passage from the one that is not, image verification of who arrives, and a record of every opening. The point is not to turn your home into a bunker, but to know who comes in when you are away, and to make sure an open service door is not an invisible hole.

Where there is domestic staff, maintenance or frequent deliveries, this is the layer that turns a normal flow of people into something traceable, with no friction for you.