Pick & Compact

Full litter collection cycle simulation

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Detect
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Approach
3
Grip
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Lift
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Deposit
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Compress
ground plane

Detect

YOLO v3.2 identifies a plastic bottle at 2.3m — 97% confidence. Bounding box locked, classification confirmed against 50+ litter categories.

Cycle #1
Gripper Telemetry

Grip Force

6.3N

Compression

70%

Bag Fill

34%

Items / Hour

210items

Session
Cycles completed0
Items collected0
Current phaseDetect
Avg cycle time15.0s

Gripper System

3-Finger Silicone Gripper

Three soft silicone fingers with embedded strain gauges provide compliant grasping across irregular shapes. The 120-degree symmetric layout ensures stable tri-point contact on bottles, cans, wrappers, and organic debris. Silicone durometer (Shore 30A) is tuned for grip without crushing thin aluminum.

Adaptive Grip Control

A closed-loop PID controller adjusts finger pressure in real-time based on object classification. Rigid items (glass bottles) get firm 8N grip; deformable items (paper cups) get gentle 3N contact. Slip detection via vibration sensors triggers automatic re-grip in under 50ms — maintaining hold on wet or irregular surfaces.

Bag Cassette & Compression

The Bag Cassette System uses replaceable cartridges containing 20-30 collection bags. An X-shaped raising frame holds each bag open during collection. The gripper arm periodically presses down to compress contents. When a bag is full, a snap-close mechanism seals it, the frame lowers, and the robot drops the sealed bag at the nearest curb for municipal pickup. The frame rises with a fresh bag from the cassette and collection continues.

SpecValue
Gripper type3-finger adaptive silicone
Finger materialShore 30A silicone w/ strain gauges
Max grip force12N per finger (36N total)
Grip response time< 200ms close, < 50ms re-grip
CompressionGripper arm press-down into bag
Bag Cassette20-30 bags per cartridge
Curb DropSealed bags at municipal collection points
Items per charge200+ across mixed litter types
IntegrationWorks with existing waste pickup infrastructure

This is a simulated demo. In production, gripper telemetry streams from deployed CleanWalker robots via onboard force sensors and ROS2 control nodes.

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