1. Jonathan Engle | Brian DeVries | Drew Davis | Jared Haan
Team 10
The Problem
The Design
IdentiKey
Many companies and institutions such as Calvin College have large collections of keys that are used for access to dozens or even hundreds of unique locks. These keys are a necessary burden because schools and institutions cannot distribute master keys freely. Rather, a unique key is required for many doors and buildings. As a result, institutions end up with a lot of keys. This large number of keys makes it cumbersome to manage them in an organized and efficient manner.
Automated
Belt and pulley system
High-torque stepper motor
Identification
USB-based RFID reader
Small RFID tag on key rings
The Team
User-Friendly
Touchscreen panel
Intuitive graphical user interface
Secure
Limited individual key access
Entire key storage enclosed
Username and password entry
Jonathan Engle | Brian DeVries | Drew Davis | Jared Haan
Key Storage
Raspberry Pi 3
Logic Level Converter
RFID USB Reader
RFID Antenna
Motor
Motor Driver
Touchscreen
24 V, 4.2 A Power Supply
5 V, 2.5 A Power Supply
Figure 2: Hardware System Architecture
Figure 1: Calvin College Physical Plant Example
Key Retrieval
The Solution
Team 10 proposed a solution that addresses this burden of mass key management. For this project, we created a system that recognizes keys based on what doors they open, sorts them accordingly, and also allows users to retrieve stored keys easily. The goals of this system are to make mass key management quick, convenient, and secure.
Acknowledgments
Mark Michmerhuizen, Calvin College
Eric Walstra, Gentex Corporation
Yoon Kim, Calvin College
Calvin College Engineering Department
2017: Team 10