university of massachusetts amherst intelock tm team: emmanuel seguin josh coffin anh-kiet huynh...
Post on 22-Dec-2015
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University of Massachusetts Amherst
InteLockTM
Team: Emmanuel SeguinJosh CoffinAnh-Kiet HuynhChristos Tsiokos
Remote Access and Proximity Key
Advisor: Professor Ganz
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Grenzebach Glier & Associates, Inc.
Background & Motivation
Currently there are many solutions for keyless entry systems
Combination locks, remote key locks, electronic card key locks, fingerprint identification locks
Each of these solutions provide a more convenient alternative to the standard key and lock system
Minimizes required user actions for ease of use
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Grenzebach Glier & Associates, Inc.
Background & Motivation
Another alternative to keyless entry systems
Propose a new wireless product designed for residential market that fits into existing standard doors
Convenience of having the key located on user eliminates need to manually unlock door
• User key never has to be taken out of their pocket, wallet, purse, etc.
• Key is detected by keyless entry system
• User needs only to turn doorknob for access into the home
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Grenzebach Glier & Associates, Inc.
Background & Motivation
Allow Remote Access to Keyless Entry SystemConnect system to internet so that the lock
status can be queried and changed remotely.
• Enables user to lock or unlock door from anywhere when necessary.
Integrate system with PC so that user events can be logged and tracked.
• Allows home owner to monitor home security and user access.
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Grenzebach Glier & Associates, Inc.
Design Challenges
Form factor
Require small wireless components that are easily integrated into existing residential doors
Power consumption
Devices that require minimum power to operate
Security
Technology that provides a secure network
Efficiency
Data reliability and quick response time
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Grenzebach Glier & Associates, Inc.
Design Solution
User will be able to lock/unlock their door provided that a special key is range of the keyless system
When the special key is in range of the system, the user can simply lock/unlock their door with a turn of the doorknob Turning the doorknob right denotes a lock command,
while left denotes an unlock command
Non-valid keys will be detected by the system and access will be denied
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Grenzebach Glier & Associates, Inc.
Design Solution
System will be integrated with existing PC and internet gateway.
Software on PC will log events and allow for system monitoring and updating
Server running on PC will allow for remote monitoring and control of keyless entry system
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Grenzebach Glier & Associates, Inc.
Design Solution
Utilize new wireless technology: ZigBee
New up and coming standard for home automation
Small form factor make ZigBee easy to integrate into system design
Low power consumption enable ZigBee devices to run on same batteries for years
Support for a large number of nodes in network
Provides strong reliability and security
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Grenzebach Glier & Associates, Inc.
ZigBee Security Features
Provides freshness check to prevent replay attacks (an attacker from replaying messages)
Provides message integrity to prevent an attacker from modifying the message in transit or forging message
Up to 128 bits of integrity
Authentication and encryption protection possible at network and device levels
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Grenzebach Glier & Associates, Inc.
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Grenzebach Glier & Associates, Inc.
Review MDR Specifications
Pseudo-code for embedded firmware on each system component
Assemble and test trigger mechanism for Door Knob
Establish communication between ZigBee coordinator and at least one node
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Grenzebach Glier & Associates, Inc.
Review MDR Specifications
Pseudo-code for embedded firmware on each system component
Assemble and test trigger mechanism for Door Knob
Establish communication between ZigBee coordinator and at least one node
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Grenzebach Glier & Associates, Inc.
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Grenzebach Glier & Associates, Inc.
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Grenzebach Glier & Associates, Inc.
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Grenzebach Glier & Associates, Inc.
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Grenzebach Glier & Associates, Inc.
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Grenzebach Glier & Associates, Inc.
Review MDR Specifications
Pseudo-code for embedded firmware on each system component
Assemble and test trigger mechanism for Door Knob
Establish communication between ZigBee coordinator and at least one node
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Grenzebach Glier & Associates, Inc.
Demonstration
Doorknob trigger will now be demonstrated
Breadboard will simulate wireless communication between the doorknob microcontroller and the control unit Doorknob trigger mechanism
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Grenzebach Glier & Associates, Inc.
Review MDR Specifications Met
Pseudo-code for embedded firmware on each system component
Assemble and test trigger mechanism for Door Knob
Establish communication between ZigBee coordinator and at least one node
Establish communication between coordinator and one node using SPI… (revised spec)
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Grenzebach Glier & Associates, Inc.
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Grenzebach Glier & Associates, Inc.
Deliverables
Deliverables:-Phase I• (1) Command unit• (1) Door knob• (1) Deadbolt• (2) Keys• Associated Source Code• User Manual
-Phase II
• Server Software for PC
• Source Code
• Interface between PC and Control unit
• User Manual
•Acceptance Tests:-Phase I• Door must unlock only if valid Key is within range• Deadbolt must disengage within a few seconds of knob turning-Phase II• Software must be active whenever PC is running• Interface must only allow authorized users to operate the system
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Grenzebach Glier & Associates, Inc.
Project Milestones
Complete AVR RISC code for Phase I devices
Assemble and test Phase I system
Integrate system with PC using a ZigBee USB interface.
Write and test Software interface for system log and system control.
Write and Test server for Remote access and control
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Grenzebach Glier & Associates, Inc.
Demo Day!
Phase I will be installed in functioning door with standard hardware placement for demonstration
Phase II will be installed on PC and will be demonstrated on a laptop with wireless access.
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Grenzebach Glier & Associates, Inc.
Budget Overview
Quantity Item Price
1 Atmel ZigBee Development Kit
$245
1 Doorknob $20
1 Deadbolt $150
1 ZigBee USB module $75
1 PCB ~$50
Batteries ~$30
Additional Modules ~$25
Total Spent $595
Total Left $5
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Grenzebach Glier & Associates, Inc.
Q & A
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