All notes
Everything here, grouped by subject. Most people arrive with one question, so the paths on the front page may be a faster route in.
Start from where you are
Four short paths through the collection, chosen for the situation you are in rather than the topic. They are curated entry points, not the full list — a note can appear on more than one path, and everything is below.
Deciding whether to buy
Size the problem, then find out whether the physics allows it at your sites. Both come before any demonstration.
Setting it up
Measure the sites, set the radii from the measurements, and design the fallback before anyone is asked to use it.
Running it
The recurring work, the numbers worth watching, and the two moving foundations underneath the deployment.
Something has gone wrong
Refusals climbing, complaints arriving, or a dispute about pay. Start with the site rather than the person.
All 50 notes
The complete collection, grouped by subject.
The basics
4 notesFive steps, and the strain is entirely in one of them. Plus the question that decides whether this technology addresses the problem you actually have.
Whether it can work
4 notesThe boundary and the position error are the same size at building scale, which is a fundamentally different situation from tracking a van across a city.
Methods
4 notesFour alternatives work indoors, which satellite position does not, and three of them collect no location data at all.
The legal position
10 notesChecking a position once, at a deliberate action, is one of the easier things to justify. Two design choices throw that advantage away.
The boundary
6 notesFour features turn a defensible design into something else, and each arrives as an upgrade rather than as a decision.
Putting it in
7 notesMeasure before you announce. A deployment that opens with a week of refusals never recovers the goodwill, and the refusals were predictable.
Running it
8 notesThe project ends at go-live; the system generates work every week. The refusal rate is the number, and most deployments do not track it.
Reference
7 notesWhat the record cannot support, the arrangements that answer the same question with nothing, and the end state as a checklist.