Dental Light Control System

CAM

CameraMouth ROI only

→

Computer / Pi 5Vision + decision

→

ESP

ESP32Motion + LED execution

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M1–M5Safe bounded motion

MOTION CONTROL

Five-axis control

AUTO

Base rotation

Rotate the full assembly around the vertical base axis.

0°

−180°Home+180°

Arm vertical motion

Raise or lower the full arm at the main joint.

0°

−45°Home+45°

Arm horizontal rotation

Turn the articulated arm left or right at the same joint.

0°

−75°Home+75°

Head rotation

Rotate the lamp head holder within the 180° working range.

0°

−90°Home+90°

Head tilt

Tilt the lamp head up or down for fine illumination correction.

0°

−45°Home+45°

Optional vertical lift

Reserved for the future lift axis; disabled until hardware is installed.

OFF

Lamp power: UNKNOWN

LED intensity0%

Current operationChecking startup readiness

The system checks ESP32, camera and mouth model before allowing automatic movement.

CLOSED-LOOP KINEMATIC MODEL · NOT FINAL FABRICATION DIMENSIONS

TARGET · MOUTH-ONLY DENTAL WORKING REGION

Safe headrest envelope

M1Base rotation

M2Arm vertical

M3Arm horizontal

M4Head rotation

M5Head tilt

CONTROLLER LINK

Automatic USB discovery

SERVICE OFFLINE

ESP32 linkWaiting

Detected port—

ProtocolDENTAL_LAMP_SERIAL_V2

Last error—

The service scans USB ports, sends PING, accepts only the ESP32 identity response, and reconnects after unplug/replug. No COM selection is exposed in the UI.

MOUTH-ONLY VISION

Live target analysis

NO DETECTION

Detection confidence—

Validation accuracy—

X error0.00

Y error0.00

Mouth lighting score—

Shadow ratio—

Lighting is computed only inside the detected mouth ROI. Low confidence blocks automatic movement instead of guessing.

MODEL REGISTRY

Detected training files

Waiting for the controller service…

Metrics are shown only when provided by a sidecar metadata file. Missing values remain “not reported”.

DETECT

Find the mouth

The vision pipeline rejects face-only or low-confidence detections and creates a mouth-only ROI.

MEASURE

Measure X, Y and light

The system calculates target offset, lighting score and shadow ratio inside the mouth ROI only.

DECIDE

Choose a small correction

The calibrated policy selects the closest suitable axis and rejects unsafe or out-of-range moves.

VERIFY

Check the next frame

After motion, the next image is evaluated again. The controller stops when the mouth illumination improves.