Autonomous Trunk Jui-Shan Grace Hsu· Andrew Ko · Ken Murray Nathan Ng· Prashant Tatineni· David Yamagata April 27, 2006 ME 102 Group 10 – The Loggers

Introduction The Problem Objectives Project Design Components Mechatronic Integration Advantages

The Problem Items placed in trunks can slide around and are easily damaged Basic nets help but are limited Usually span the middle of the trunk, getting in the way Often not the appropriate size

Design Objectives Accommodate objects of different sizes and fragility Apply enough force to secure the object without damaging it An “out of the way” system that allows for easy loading and unloading

Project Design Net that covers and tightens around the object Two settings for different sizes High tension Secure heavy items Prevent from moving and damaging smaller items Low tension Hold light objects in place Fragile items might otherwise move around and be damaged by sides of trunk

Components Net anchored at three set locations in the rear of the trunk Connected to a rope that allows for adjustable positioning in the front by motor

Mechatronic Integration Encoders are used to determine when proper tension has been reached Based on speed of spool rotation and voltage

Advantages Keeps objects secured in a confined area Flexible enough to handle multiple objects Relatively inexpensive and lightweight Allows easy loading and unloading