Wi-Fi Homebrew Fermentation ControllerMID SEMESTER PRESENTATION

Team Members

Marlon DorseyElectrical Engineering

Team Leader

Kevin LinElectrical Engineering

Alex CardenElectrical Engineering

Dr. Randolph FollettFaculty Advisor

Sergio IbarraElectrical Engineering

Jeremy HamiltonProfessional Advisor

Team Members

Overview

History Problem Solution Constraints Overview Approach Progress Pending

A Brief History Lesson Beer has been a popular beverage for

thousands of years. Egyptians, Germans, and other Middle

Eastern groups were leaders in beer brewing.

Different styles led to the creation of different types of beer created.

Commercialization of beer brewing increased over the past hundred years.

Recently, home brewing and craft beer has had a resurgence in popularity.

Problem An issue of the beer process is

fermentation due to constant regulation.

The fermentation temperature must be controlled properly .

It is difficult to hold at a given temperature over length of time.

It is difficult to manage or control from home

Solution The Wi-Fi Homebrew Fermentation

Controller! Ability to control the fermentation

process. Selection of Yeast Profiles

(fermentation styles). Operate by web, Android app, or on

device itself. Able to see how the brew is doing

away from home (or at work). Analyze aspects of fermentation

with charts, graphs.

Technical Constraints Name Description

Yeast Profiles The Wi-Fi Homebrew Fermentation Controller will allow selection of pre-set yeast profiles from the controller in order to ferment beer at different temperatures and styles

Accuracy and Tolerance

The Wi-Fi Homebrew Fermentation Controller must be able to read and interpret the current temperature of the brew within 1 degree Fahrenheit and be tolerant to external conditions.

Compressor / Heat Delay

The Wi-Fi Homebrew Fermentation Controller must operate the heating and cooling system in an effective, efficient manner so it does not damage the heating and/or cooling system.

Power Usage The Wi-Fi Homebrew Fermentation Controller must use less than 100 Watts and a system usage less than 1800 Watts to prevent damage to components and equipment.

Graphical User Interface

The Wi-Fi Homebrew Fermentation Controller must be able to receive input from the user and interpret it either by mobile input or by the device itself.

Practical Constraints

Economic/Sustainability Cost of parts must not cost more than

100 dollars. Designed to operate for two weeks

continuous. Presumed uninterrupted power. Expected to last at least 10 years

excluding normal replacement parts. Must be able to be easily produced.

Practical Constraints

Health/Safety End product that controller produces must

be sanitary and safe for human consumption.

Excessive consumption could be a problem. Controller must be protected. External power cords and cables must be

protected, insulated. Able to withstand abrasions and impact.

System Overview/Schematic

Controller

Web Server

Heating

Temp Sensors

Cooling

Relays

Raspberry Pi

Subsystems

Hardware Circuit controls heating and cooling

Raspberry Pi operates relays

Pi communicates with web server

Approach The basic approach behind this project is to build a

module that can regulate fermentation control through a wireless/network capability.

Microprocessor

Raspberry Pi B Very powerful

Ability to operate as server and monitor, control data

More expensive than Arduino

Arduino Uno Efficient

Cheaper

Would need additional processor for server

Temperature Sensor

DS18B20+ (Temperature Sensor)

Implementing the waterproof version

One wire style

TMP36 (Microprocessors Temp Sensor)

Raspberry Pi doesn't have ADC(Analog to Digital Converter)

Cheaper

Not waterproof

Must use analog system

Heat Source

120 Volt Cooking Element

Provides ample amount of heat fairly quick.

Consumes more power.

Larger in size versus light bulb.

Cost 10x more than bulb

100 Watt Incandescent Light Bulb

Provides adequate heat.

Uses only 100 Watts

Small in size

Very cheap ( 1 to 2 dollars per bulb)

Easy to replace.

Internet abilities

Use an app that directly links to an URL (created site)

The site would allow the login or search of IP Address of individual Raspberry Pi.

The router would serve as gateway between Internet and Pi.

Hopefully, the use of NAT(Network Address Translation) we could direct internet traffic to the router.

Editing the port that is connected to the Pi would keep hackers out of the Pi.

Progress

Acquired refrigerator Purchased Raspberry

Pi Began setup of

website Secured 100 Watt

incandescent light bulb

Secured temp sensor Began programming

Pending We have ordered the parts that we need for the

remainder of the project.

We have already tested the temperature sensor and it works. We are in the process of trying to control the compressor of the refrigerator.

We have created our site for Raspberry Pi access and we are still running tests for it.

Timeline

August September October November December

Research ideas, components, designs. Make item list

Purchase hardware and components. Begin design, programming assembly

Continue programming. Begin testing of prototype. Complete Assembly for presentation

Presentation of working prototype.

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Team Tasks

Research and Design

Programming

Webpage Hardware Design

Hardware Assembly

Documents

Marlon X X X X

Alex X X X X

Sergio X X X X

Kevin X X X

References

[1] Evan Andrews (2014, January 8). Who Invented Beer? [Online]. Available: http://www.history.com/news/ask-history/who-invented-beer

[2] Kathy Padden. (2014, April 18). A Brief History of Beer [Online]. Available: http://www.todayifoundout.com/index.php/2014/04/history-beer/

[3] Linda Raley. (1998). Beer History. [Online]. Available: http://www.beerhistory.com/library/holdings/raley_timetable.shtml

[4] (June 25, 2015). Marketing and Competitive Analysis of Beer Companies. [Online]. Available: https://ultius.com/ultius-blog/entry/marketing-and-competitive-analysis-of-beer-companies.html

[5] Charles Krakoff. (2009, August 27). Beer, Competition, and Emerging Markets. [Online]. Available: http://www.investorsinsight.com/blogs/global_emerging_markets_gems/archive/2009/08/27/beer-competition-and-emerging-markets.aspx

[6] (1999). How to Brew by John Palmer. [Online] Available: http://www.howtobrew.com/section1/chapter9-3.html

 

[7] (1999). How to Brew by John Palmer. [Online] Available: http://www.howtobrew.com/section1/chapter10-5.html