that home automation topology - nick viera

THAT THAT •• 2010.05.04 2010.05.04 • • 11

THAT HomeTHAT HomeAutomationAutomation

TopologyTopology

Chris Miller • Nick VieraChris Miller • Nick VieraFinal PresentationFinal Presentation

Bradley UniversityBradley UniversityElectrical and ComputerElectrical and ComputerEngineering DepartmentEngineering Department

AdvisorsAdvisorsDr. IrwinDr. Irwin

Dr. MalinowskiDr. Malinowski

THAT THAT •• 2010.05.04 2010.05.04 • • 22

IntroductionIntroduction

SignificanceSignificance

‣‣ Convenience ...Convenience ...

‣ ‣ Safety ...Safety ...

‣ ‣ Savings ...Savings ...

‣ ‣ FUN!FUN!

Better Living Through Home AutomationBetter Living Through Home Automation

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MotivationMotivation

Design Goals:Design Goals: Six Desirable TraitsSix Desirable Traits

Current productsCurrent productsfall short...fall short...

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MotivationMotivation

We Intend to achieve We Intend to achieve a reasonable balancea reasonable balance

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The Many Functions of Home AutomationThe Many Functions of Home Automation

Which to choose?Which to choose?

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EthernetRouter

Computer( 32/64-bitplatform)

BroadbandModem

TheInternet

Ethernet LinkPoE Ethernet LinkSerial LinkSoftware Link

Given an Existing System:Given an Existing System:


ObjectivesObjectives

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Digital Thermostat

Module

ElectronicAccessModule

EthernetRouter

PoEEthernetSwitch

THAT Module

FrontDoor

Widget

THAT Module


THATControl

Software

BroadbandModem

TheInternet


To Design and Implement:To Design and Implement:

THAT topology and protocol THAT topology and protocol ( Nick and Chris )( Nick and Chris )



THAT THAT •• 2010.05.04 2010.05.04 • • 88

Digital Thermostat

Module


EthernetRouter

PoEEthernetSwitch

THAT Module

THAT Module


THATControl

Software

BroadbandModem

TheInternet



THAT topology and protocol THAT topology and protocol ( Nick and Chris )( Nick and Chris )THAT Control Software THAT Control Software ( Nick and Chris )( Nick and Chris )



FrontDoor

Widget

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Digital Thermostat

Module


EthernetRouter

PoEEthernetSwitch

THAT Module

THAT Module


THATControl

Software

BroadbandModem

TheInternet



THAT topology and protocol THAT topology and protocol ( Nick and Chris )( Nick and Chris )THAT Control Software THAT Control Software ( Nick and Chris )( Nick and Chris )Digital Thermostat ModuleDigital Thermostat Module ( Nick )( Nick )Electronic Access ModuleElectronic Access Module ( Chris )( Chris )



FrontDoor

Widget

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THAT Power SupplyTHAT Power Supply

Block DiagramBlock Diagram

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Important ComponentsImportant Components

PoE ControllerPoE Controller

Ag9405 Power overAg9405 Power overEthernet (PoE) moduleEthernet (PoE) moduleby Silvertel implementsby Silvertel implementsIEEE 802.3afIEEE 802.3af

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SchematicSchematic

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PCB LayoutPCB Layout

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Completed Power SupplyCompleted Power Supply

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THAT Network InterfaceTHAT Network Interface


THAT THAT •• 2010.05.04 2010.05.04 • • 1616


Ethernet ControllerEthernet Controller

ENC28J60 IC by Microchip implements IEEE 802.3ENC28J60 IC by Microchip implements IEEE 802.3

THAT THAT •• 2010.05.04 2010.05.04 • • 1717


SchematicSchematic

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PCB LayoutPCB Layout

THAT THAT •• 2010.05.04 2010.05.04 • • 1919


Completed NICCompleted NIC

THAT THAT •• 2010.05.04 2010.05.04 • • 2020


Microcontroller PlatformMicrocontroller Platform

Atmel AVR SeriesAtmel AVR Series

‣ ‣ 8-bit RISC architecture 8-bit RISC architecture ‣ ‣ In System Programming In System Programming ‣ ‣ Many peripherals (ADC, comparators, serial UART, IMany peripherals (ADC, comparators, serial UART, I22C, SPI) C, SPI) ‣ ‣ Many through-hole and SMT package options Many through-hole and SMT package options ‣ ‣ Assembly and C languagesAssembly and C languages ‣ ‣ No proprietary software necessary No proprietary software necessary ‣ ‣ Cost-effective, readily available Cost-effective, readily available

THAT THAT •• 2010.05.04 2010.05.04 • • 2121

Electronic Access ModuleElectronic Access Module

Module Sub-TopologyModule Sub-Topology

PoE Ethernet LinkI2C Serial LinkAC/DC Control Link

THAT CommunicationsTHAT Communications( To Ethernet Switch )( To Ethernet Switch )

Front Door WidgetFront Door Widget Side Door WidgetSide Door Widget Back Door WidgetBack Door Widget

ElectricLock / Strike

ElectricLock / Strike


THAT THAT •• 2010.05.04 2010.05.04 • • 2222


Module OverviewModule Overview

‣ ‣ Graphical LCDGraphical LCD

‣ ‣ Integrated relaysIntegrated relays

‣ ‣ Piezo buzzerPiezo buzzer

‣ ‣ Seven-segment LEDsSeven-segment LEDs

‣ ‣ Pushbutton switchesPushbutton switches

HardwareHardware

‣ ‣ Open-sourceOpen-source

‣ ‣ Programmable functionalityProgrammable functionality

‣ ‣ Multi-user support Multi-user support

FirmwareFirmware

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EAM Block DiagramEAM Block Diagram

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Door Widget Block DiagramDoor Widget Block Diagram

THAT THAT •• 2010.05.04 2010.05.04 • • 2525

Completed WorkCompleted Work

Electronic Access Module PrototypingElectronic Access Module Prototyping

THAT THAT •• 2010.05.04 2010.05.04 • • 2626


Electronic Access Module PrototypingElectronic Access Module Prototyping

THAT THAT •• 2010.05.04 2010.05.04 • • 2727

Digital Thermostat ModuleDigital Thermostat Module

Module OverviewModule Overview

HardwareHardware

‣ ‣ Graphical LCD screenGraphical LCD screen ‣ ‣ 6 switches and 5 LEDs 6 switches and 5 LEDs ‣ ‣ 4 relays4 relays ‣ ‣ Thermostat: -20 to 70°C with ±2° accuracyThermostat: -20 to 70°C with ±2° accuracy ‣ ‣ Humidistat: 10 to 95% with ±2% accuracyHumidistat: 10 to 95% with ±2% accuracy

SoftwareSoftware

‣ ‣ End-user configurableEnd-user configurable ‣ ‣ Weekly schedulingWeekly scheduling ‣ ‣ Heat, Cool, Auto, Fan, and Circulation modesHeat, Cool, Auto, Fan, and Circulation modes ‣ ‣ Short-cycle preventionShort-cycle prevention ‣ ‣ Settings stored to non-volatile memorySettings stored to non-volatile memory ‣ ‣ Passcodes for restricted accessPasscodes for restricted access

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Physical Design ConceptPhysical Design Concept

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Prototype DevicePrototype Device

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Prototype LCD ReadoutPrototype LCD Readout

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THAT Control SoftwareTHAT Control Software

Example UsageExample Usage

THATControl

Software

(Python)Web Interface Terminal + Log Files

Main Computer ( Intranet )

Web Interfacevia Browser

Remote Device( Internet )

Web Interfacevia Browser

Local Device( Intranet )

THAT THAT •• 2010.05.04 2010.05.04 • • 3333



THAT Moduledefinition(XML) file

THATControl

SoftwareCore

XMLParsingModule

HTTPWeb Server

Module

THAT TCPServerModule

THAT ModuleHTML file

THAT ModuleCSS file

THAT Software“Database”XML file(s)

XMLdatabaseModule

Default HTMLtheme file(s)

Default CSStheme file(s)

Provided by the module manufacturer

Provided with THAT Control Software

Dynamically generated by THAT Control Software

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A Module's XML FileA Module's XML File

ModelIdentificationsection

Controls Declarationsection

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THATTHAT

ConclusionConclusion


‣ ‣ Basic communication schemeBasic communication scheme

‣ ‣ TCP communications softwareTCP communications software

‣ ‣ THAT Power SupplyTHAT Power Supply

‣ ‣ THAT Network InterfaceTHAT Network Interface

In ProgressIn Progress

‣ ‣ Digital Thermostat ModuleDigital Thermostat Module

‣ ‣ Electronic Access ModuleElectronic Access Module

‣ ‣ THAT Control SoftwareTHAT Control Software

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▸ ▸ Questions? ◂Questions? ◂

THATTHAT

References:References:

[1] D. Dwelley & J. Herbold, “Banish Those Wall Warts With Power Over Ethernet,” [1] D. Dwelley & J. Herbold, “Banish Those Wall Warts With Power Over Ethernet,” electronic design,electronic design, Oct. 2003. [Online]. Available: http://electronicdesign.com/article/power/page/page/1/banish-those-Oct. 2003. [Online]. Available: http://electronicdesign.com/article/power/page/page/1/banish-those-wall-warts-with-power-over-ethernet59.aspxwall-warts-with-power-over-ethernet59.aspx

[2] D. Sherman, “AN452 One mile long I[2] D. Sherman, “AN452 One mile long I22C communication using the P82B715.” Datasheet & C communication using the P82B715.” Datasheet & Application Note Database, May 2010. [Online]. Available: Application Note Database, May 2010. [Online]. Available: http://www.datasheetarchive.com/pdf/Datasheet-054/DSA004594.pdfhttp://www.datasheetarchive.com/pdf/Datasheet-054/DSA004594.pdf

[3] G. Socher, “An AVR microcontroller based Ethernet device,” June 2006. [Online]. Available: [3] G. Socher, “An AVR microcontroller based Ethernet device,” June 2006. [Online]. Available: http://www.tuxgraphics.org/electronics/200606/article06061.shtmlhttp://www.tuxgraphics.org/electronics/200606/article06061.shtml

[4] G. Socher, “HTTP/TCP with an atmega88 microcontroller,” Nov. 2006. [Online]. Available: [4] G. Socher, “HTTP/TCP with an atmega88 microcontroller,” Nov. 2006. [Online]. Available: http://www.tuxgraphics.org/electronics/200611/embedded-webserver.shtmlhttp://www.tuxgraphics.org/electronics/200611/embedded-webserver.shtml

that home automation topology - nick viera

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