Technology

RoboCilek’s technology stack is modular, explainable, and engineered around safe selective harvesting.

We built a complete perception-to-actuation architecture. High-fidelity RGB-depth sensing, pixel-perfect instance segmentation, custom ripeness logic, coordinate transformation, deterministic embedded control, and strict safety enforcement—all working seamlessly together as one coherent autonomous harvesting machine.

Hierarchical architecture with strictly defined subsystem boundaries RGB-depth perception fused with proprietary ripeness logic Battery-powered platform with smart, regulated power distribution
Perception Pixel-level masks over loose boxes

Precise segmentation completely eliminates background noise before ripeness and depth decisions are made.

Control Split Raspberry Pi + Arduino

High-level strategic intelligence remains securely separated from deterministic, low-level physical actuation.

Power Design Regulated & load-isolated

Sensitive processing electronics and heavy actuator loads are strictly separated for absolute electrical stability.

Safety Logic Motion constrained by software

Aggressive soft limits, hardware watchdogs, and continuous workspace validation prevent undefined behavior.

Architecture Overview

A true layered system where every subsystem has an uncompromising role.

RoboCilek is an integrated engineering system, not a loose collection of parts. Perception, coordinate reasoning, control, power, and actuation each solve a distinct, critical problem inside a seamless harvesting loop.

Layer 01

Vision Acquisition

The Intel RealSense D435i supplies perfectly aligned RGB and depth streams, allowing the robot to reason simultaneously about visual appearance and physical distance.

Layer 02

Perception & Ripeness

YOLOv8n-seg isolates the fruit at the pixel level, while our proprietary HSV engine definitively decides if the fruit meets strict harvest-ready criteria.

Layer 03

Coordinate Transformation

Advanced deprojection and base-frame conversion instantly turn pixels and depth values into physically actionable, mathematically verified robot coordinates.

Layer 04

Embedded Control

An Arduino Nano expertly handles time-critical motion execution, smooth PWM output, and localized safety and limit enforcement.

Layer 05

Actuation & Harvesting

High-torque servo-driven joints and our custom-engineered stem-cut end-effector translate planned digital motion into repeatable physical action.

Layer 06

Power & Stability

A custom battery pack, intelligent BMS, and highly regulated power distribution keep complex, mixed-current subsystems electrically stable under load.

Perception Pipeline

Designed to violently reject noisy guesses and only produce perfect targets.

We don’t just “use AI.” Our pipeline relies on exact segmentation masks, rigorous HSV logic, aggressive depth filtering, and calculated stem-offset reasoning to guarantee a flawless harvest.

01

Acquire aligned RGB-depth

Depth data is captured synchronously with color data, ensuring perception decisions directly and accurately inform spatial action.

02

Segment at the pixel level

YOLOv8n-seg produces exact instance masks, forcing the robot to reason only about the fruit surface, completely ignoring noisy background bounding boxes.

03

Run custom HSV ripeness logic

Our unripe signal ratio quantifies green, yellow, and pale pixels strictly inside the mask to make an uncompromising commercial readiness decision.

04

Filter depth with IQR logic

Depth values within the mask are ruthlessly cleaned of anomalies before the median distance is locked in as the final Z-axis reference.

05

Transform to robot space

Intrinsic calibration, extrinsic transformation, and strict workspace boundary checks safely turn the visual target into a verified motion target.

06

Apply precise stem offset

The final coordinate is intelligently shifted toward the stem, guaranteeing the mechanism cuts the stalk while entirely avoiding the fruit body.

Control Architecture

Separating high-level intelligence from real-time physical actuation.

This separation is a core strength of our architecture. A Raspberry Pi handles the heavy lifting of perception and planning, while an Arduino ensures that physical movements remain perfectly deterministic and completely unaffected by software timing loads.

Raspberry Pi 5 (The Brain)

Executes the heavy vision pipeline, structured AI decision-making, and high-level motion command generation.

Arduino Nano (The Muscle)

Receives validated commands over serial and converts them instantly into deterministic, PWM-driven motor behavior.

Rigid Finite State Machine (FSM)

Idle, approach, stabilize, cut, and home states strictly govern the sequence, making the harvest safe, predictable, and debuggable.

Soft-Start Motion Profiles

Mathematically interpolated movements eliminate jerk and vibration, drastically reducing the risk of disturbing the delicate target during approach.

Hardware And Power

Balancing rapid iteration with true technical originality.

RoboCilek utilizes a strategic mix of reliable Commercial Off-The-Shelf (COTS) electronics and fully custom mechanical engineering. This accelerates our iteration speed while ensuring our core harvesting mechanism remains highly specialized and proprietary.

Sensor

Intel RealSense D435i

Delivers flawless aligned RGB-depth capture, eliminating the high latency and complexity of custom stereo vision calibration.

Processing

Raspberry Pi 5

The powerhouse for rapid image analysis, heavy perception logic, and structured command generation.

Embedded Control

Arduino Nano

A highly reliable microcontroller dedicated exclusively to real-time physical control and seamless serial communication.

Actuation

Servo-Driven Robotics

A combination of standard and high-torque servo motors provide smooth, controlled multi-joint motion within the calculated workspace.

Power

3S3P Battery + Custom BMS

Ensures total autonomous mobility, while the Battery Management System aggressively protects against overcurrent, voltage drops, and short circuits.

Mechanics

Custom Stem-Cut End-Effector

A 100% proprietary structural geometry and harvesting tool designed from the ground up to achieve zero-damage handling.

Safety And Reliability

Intentionally conservative: safe motion matters more than flashy speeds.

We do not pretend that raw autonomy alone is safe. We rely on strict mathematical limits, relentless system monitoring, and unbreakable software guardrails to ensure our machine is completely trustworthy around delicate crops and human operators.

Safety 01

Enforced Soft Limits

Every requested joint angle is rigorously cross-checked against software-defined geometric limits before a single motor is energized.

Safety 02

Hardware Watchdogs

If the controller misses data packets for even a fraction of a second, the system instantly freezes actuators to prevent rogue movements.

Safety 03

Workspace Validation

Targets falling outside the mathematically verified reach of the arm are instantly rejected before becoming dangerous physical commands.

Safety 04

Operational Safety

Clear status indicators, heavily regulated power delivery, and a strictly constrained workspace guarantee safety for field operators.

Performance And Reality

Validating core functions today while engineering the boundaries of tomorrow.

Credibility comes from transparency. We demonstrate highly capable, real-world harvesting under controlled conditions, and we are absolutely clear about the technical milestones required for massive commercial scale.

What We Execute Flawlessly Today
  • Highly reliable segmentation and selective harvest decision-making inside the defined workspace.
  • Unshakable, repeatable arm positioning across thousands of controlled cycles.
  • Consistent, low-latency AI inference driving real-time decision making.
  • Seamless integration of vision, processing, and actuation into a unified platform.
Our Next Engineering Milestones
  • Guaranteeing perception robustness under harsh outdoor and highly variable lighting conditions.
  • Pushing positioning accuracy beyond current hardware tolerances with advanced kinematics.
  • Maximizing energy efficiency through AI-optimized motion sequencing.
  • Ruggedizing the platform for industrial durability and continuous 24/7 field deployment.
Original Engineering Logic

Our true value lies in the proprietary intelligence we built.

RoboCilek’s competitive advantage isn’t in assembling off-the-shelf parts; it is in the deeply customized, original engineering logic and harvest intelligence we have developed from scratch.

Original IP 01

Proprietary HSV Ripeness Engine

Commercial harvest readiness is dictated by our custom deterministic algorithm, completely outperforming generic visual detectors.

Original IP 02

Advanced IK Pipeline

Our custom TcamToBase logic, real-time workspace checks, and motion feasibility rules flawlessly translate AI perception into safe physical action.

Original IP 03

Custom FSM Sequencing

The highly rigid state architecture governing approach, stabilize, cut, and home was written specifically to solve the strawberry harvesting problem.

Original IP 04

Specialized End-Effector

Our unique stem-cut tool is a completely custom mechanical design engineered specifically to achieve the zero-damage harvesting requirement.

The Next Step

RoboCilek is a highly engineered system ready for the real world.

You’ve seen how our robot sees, reasons, moves, and protects itself. Now, explore how we are translating this robust engineering foundation into a scalable, high-impact commercial business.