One platform. Two ways to keep track of the people who matter.

Consensual workplace presence

Privacy-respecting life signs

Know who's on site — without the punch clock.

Peace of mind that stays out of the room.

One small gateway per job site quietly notes when your crew arrives, steps away, and comes back. Presence you can prove — not a camera pointed at your people.

A beacon they wear — no app, no smartphone, no camera. Ordinary movement through the day tells the family the day looks ordinary too.

How an observation becomes a message

01 · ADVERTISE

A beacon speaks up

A coin-sized tag broadcasts on its own — nothing to open, charge daily, or think about.

02 · LISTEN

A gateway observes

Signal strength and motion, watched over time. An observation with a confidence level — never an exact location.

03 · DECIDE

The right person hears

The engine weighs the evidence and, when it matters, sends a note by SMS or email.

The problem

The gap a time clock leaves.

Home, for as long as possible.

Service work doesn't happen at a front desk. Crews scatter across job sites, come and go through the day, and a wall-mounted time clock was never built for that. KnowTech fills the gap: an automatic, tamper-resistant record of who was where and when — standing on its own, or backing up the system you already run.

No one chooses assisted living until they have to. Most people want to stay in their own home, and most families just want a quiet sign that today went fine. Cameras feel like surveillance; a phone is one more thing to lose. NoTech asks almost nothing of the person it protects.

A field technician carries a tool bag past a wall-powered gateway while subtle illustrated signals radiate from the bag and gateway. — A hidden beacon advertises. A nearby gateway listens.

A smiling older adult presses the button on a beacon worn as a necklace while a subtle illustrated signal radiates from it. — Worn simply. One press asks family to call.

The audit trail

One button

The in-between, on the record.

"I'd love a call."

Left at 10:14 for a supply run, back by 10:52 — the kind of gap a paper timesheet never captures. KnowTech keeps the comings and goings, so a payroll question has an answer instead of an argument.

For someone who can't find their phone, a single press reaches family directly. It's connection on demand — a way to be thought of. Not a panic button, and never a replacement for 911.

08:02Arrived on site — nearest the north unit

10:14Left the site — supply run

10:52Back on site — confidence 0.9

16:30Departed for the day

"Thinking of you — call when you can."

Sent to family the moment the button is pressed.

The intelligence

Let it watch the gaps.

A reason to call — not an alarm.

Wire it into your personnel system and let it watch the gaps. If someone scheduled isn't detected, the right manager gets a heads-up by SMS or email — before it becomes tomorrow's problem.

If the day goes unusually still — no movement for hours — a chosen family member gets a gentle nudge to check in. Not an alarm. A reason to call.

The shared kit

One set of hardware. Both jobs.

The same small radios power both sides — which is the whole point. Off-the-shelf beacons, two listening gateways, and a cloud that turns noisy radio into something a person can read.

An illustrative render of the prototype kit: three BlueCharm beacon types and two USB gateways. — Illustrative render · current prototype hardware

BlueCharm BC05 MultiBeacon

Motion-sensing beacon. The everyday "is someone moving" signal.

BlueCharm BC021 MultiBeacon

Beacon with a button and motion. Powers the "call me" press and activity in one tag.

BlueCharm BC-S1 MultiBeacon

Door and window state beacon. Knows when a door opens or closes.

BlueCharm BCG04 gateways × 2

The scanners that listen for beacons. Two let the system reason about which area is nearest — not just present or absent.

.NET + Azure

The brain. Turns messy radio into explainable presence with a confidence level — and sends the notifications.

The honest part

Presence with a stated confidence level. Consensual, never covert.

Supplemental life signs, not a safety system.

Everyone participating knows the beacon is there. KnowTech is an audit aid, not covert surveillance.

NoTech is not a medical device, fall detector, or emergency service — and is never a replacement for 911. A quiet day is a hint to check in, never a promise that all is well.

AI, after the evidence

See schedule strain before the day slips.

Turn one small signal into a human message.

With consent, AI can compare current presence observations with the shift plan and assigned workload, then surface a plain-language possibility while keeping the supporting evidence and uncertainty visible.

Button presses and activity observations stay factual. AI can help summarize the context and route a gentle message, while deterministic rules own delivery and every safety boundary.

AI explains context. Verified observations and deterministic rules remain the source of truth.

A construction operations desk behind an illustrative smartphone notification. — Illustrative AI insight · possibility, not fact

A warm home side table behind an illustrative smartphone notification. — Illustrative check-in · the observed event stays clear