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Sport

Measure what happens between impact and outcome.

Anchors down the length of a hole make the course a measurement volume, so a ball's flight, first bounce and roll are rebuilt and delivered before the player reaches it.

  • TRAJECTORY
  • IMU
  • ANCHOR GEOMETRY
  • DECT NR+
  • EDGE ML
  • SHOT RECORD
Site
Golf courses
Company
ARC3
Core
Hardware · Radio · Positioning · Edge

The environment

Sport / EnvironmentConceptual
Course: anchors along a hole reconstructing a ball's flight, first bounce and resting position.CORRIDOR / TRAJECTORYTEEAPEXC01C02C03BALL_037FLIGHT / BOUNCE / ROLL
The site

Why this environment is hard.

Sport is the extreme case of the same problem. The object is small, it spins, it is moving fast, and the whole event is over in seconds. The interesting part happens between the two moments anyone currently measures: the strike and the result.

  • Dynamics

    Impact is a very high acceleration and flight is a very high spin rate. The sensors have to survive the strike and still be measuring during it.

  • Volume

    A hole is a long corridor with trees, water and elevation change, and the ball spends most of the shot well above the anchors. Coverage geometry is the whole design problem.

  • Form factor

    Electronics have to disappear into the equipment without changing how it behaves. Mass, balance and the radio's view out of a spinning object are all specifications.

  • Latency

    A result that arrives back at the clubhouse is a report. A result that arrives before the player has finished walking is a product.

The platform here

The same three questions, answered on this site.

Where is it, what is it doing, how does the data get back. The modules that answer them are built once and shared. The site decides what each one has to do.

Sport / Question → core module

  1. Where did the ball go?

    The resting position, and everywhere it passed through.

    Positioning engine

    Anchors down the length of a hole make the corridor a measurement volume. Fixes from the anchors and inertial data from the ball are fused into one trajectory — launch, apex, first bounce, roll and the lie — rather than extrapolated from launch conditions.

  2. What happened in flight?

    Launch, apex, first bounce, roll.

    Sensing & edge ML

    The strike, the first bounce and the moment the ball stops are detected on the ball itself. The network carries those events, timestamped, not the raw motion trace — which is all a radio inside a spinning ball can afford to send.

  3. How does the course report it?

    Anchors along the hole, listening the length of the fairway.

    Private DECT NR+ radio

    Anchors along the fairway listen for a small transmitter that spends most of the shot in the air and the rest in the grass. Events are relayed anchor to anchor to the clubhouse gateway, so the shot record reaches the player before they reach the ball.

Care3 core platformBuilt once · shared by HerdHalo · Intoku · ARC3
Hardware

The same building blocks, on this site.

One hardware family serves all three verticals. What changes is the role each object takes and the conditions it has to survive.

Sensor board: two-layer outline with copper pour, edge connector, microcontroller, shielded radio section, printed antenna inside a keep-out, passives and a castellated bottom edge.RFCARE3 · REV ARF SECTIONKEEP-OUTCASTELLATIONS

Ball electronics

Inertial sensing and the radio on one small board, built to survive the strike and balanced so the ball still behaves as a ball.

  • PCB DESIGN
  • KEEP-OUT
  • CASTELLATED
Rugged field anchor: sealed enclosure with a lid seam and slotted fixings, whip antenna on an SMA bulkhead, cable gland on the right face, U-bolt bracket on a pole.CARE3ANCHORSMACABLE GLANDPOLE BRACKET

Course anchor

Placed down the length of a hole for usable geometry, and built for weather, mowers and a full season outdoors.

  • SEALED
  • WHIP ANTENNA
  • MULTI-HOP
Edge gateway: extruded enclosure with a finned heatsink top, a row of network ports, power inlet and card slot, three status indicators and wall-mount flanges. Two whip antennas on SMA bulkheads.CARE3 · GATEWAYHEATSINKPORT ROWSTATUS

Clubhouse gateway

Terminates the anchor network, assembles the shot record and hands it to the player. Latency measured in a walk, not a report.

  • STORE & FORWARD
  • POSITION SOLVER
  • SECURE UPLINK
In practice

What the system does here.

  1. Instrument the venue

    Fixed anchors turn a course into a measurement volume, so the ball carries as little electronics as possible and says as little as possible.

  2. Reconstruct, don't estimate

    Position fixes plus on-board inertial data let a trajectory be rebuilt rather than inferred from launch conditions alone. The first bounce is measured, not modelled.

  3. Engineer for the season

    Course infrastructure faces weather, mowers and power for a full year, not a demo afternoon. Anchors are placed once and left alone.

Go-to-market company

ARC3 takes this to market.

A technology platform for golf built around positioning, embedded electronics, telemetry and course infrastructure — engineered to measure the part of the shot nobody currently sees.

Explore ARC3
ARC3 / Shot arcConceptual
ARC3: a ball's flight down a hole corridor, marked at launch, apex, first bounce and rest, with course anchors in elevation and plan.C01C02C03APEXLAUNCHBOUNCERESTBALL_037FLIGHT / BOUNCE / REST
ARC3 is built to answer:

  • What anchor geometry gives a usable fix along the length of a hole?

  • How much electronics can go inside the object before the object stops being itself?

  • Where does the position fix end and the reconstruction begin?

  • BALL
  • ANCHOR
  • POSITION
  • TRAJECTORY
  • SHOT DATA
  • COURSE INFRASTRUCTURE

Other verticals

  • Agritech

    Every animal located, beyond mobile coverage.

  • Telecare

    Telecare that knows every room, across the whole site.

Start here

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