Conceptually, winemaking is quite
simple. You combine a flavored juice with sugar, acid, tannin, and yeast, remove
any pectin present, and allow the yeast to do what it naturally does with as
little exposure to air and contaminates as possible. When the yeast is done,
the result is wine. Conceptually, that's all there is to it. In reality, it's a
bit more involved. And, to a wine enthusiast producing a good bottle of wine
takes continual monitoring. DionySENSETM has been developed to assist these enthusiasts with
consistently producing the best possible tasting wine.
"If there is an art to winemaking, and there certainly
is, then it is the art of controlling yeast. It is the art of selecting the
appropriate yeast, introducing it at the correct moment, feeding and nurturing
it so as to coax it into living, reproducing and dying in a prescribed manner,
and then cleaning up after it so as to preserve the fruit of its labor. It is
the art of controlling its temperature, the amount and kind of air it is
allowed to breathe, and feeding it the sugar and other nutrients it needs to
serve man. For it is not in the nature of yeast to serve man, but rather yeast
exists to serve yeast. Controlling yeast is the real art of making wine."
DionySENSETM is a small wireless device that can be affixed to a wine
barrel or tank to monitor key parameters during the fermentation process. These parameters include pH, temperature,
alcohol levels, and sulfur dioxide. It
is necessary to monitor these parameters to ensure that wine reaches the
optimal levels of sugar, alcohol, and acidity to improve the quality taste and
eliminate spoilage of the wine.
To begin producing wine a winemaker must purchase an
extensive amount of equipment and ingredients.
These supplies also include the following testing equipment
·
Acid test kits
·
Hydrometer
·
Test Jars
·
Thermometer
·
Miscellaneous testing
equipment (solutions, sampling instruments etc.)
Or, a
home winemaker could purchase one product, DionySENSETM. DionySENSETM will continually monitor all of the factors necessary for
home wine production. A winemaker can
set the limits, using the DionySENSETM software, of each of these factors. If a factor crosses one the limits set by
the winemaker, DionySENSETM will send an email alert.
The email can also be sent to a mobile phone - so the winemaker can be
made immediately aware of the problems in the cellar and so they can take the
appropriate action.
DionySENSETM is an
essential instrument for the home-wine maker.
The quality, taste, texture, and look of the wine is determined during
the fermentation processes. It is at
these stages that the true value of DionySENSETM can be realized.
The essential steps in winemaking can be summarized as follows:
Figure 1: Key Steps in Wine Making
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1. Extract the flavor and
aroma from the base ingredients by chopping, crushing, pressing, boiling or
soaking them.
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2. Add sugar, acid,
nutrients, and yeast to the fermentation media or liquor to achieve the
proper ratio and ferment, covered, for 3 to 10 days in a primary fermentation
vessel (crock, jar or polyethylene pail) at 70-75 degrees Fahrenheit.
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3. Strain off the liquid
from the pulp, put it (the liquid) into a secondary fermentation vessel (a
carboy or jug), fit a fermentation trap (airlock) on the mouth of the bottle,
and allow fermentation to proceed at 60-65 degrees Fahrenheit until all
bubbling ceases (after several weeks).
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4. Siphon the wine off the sediments (lees) into another clean
secondary fermentation vessel. Reattach the fermentation trap. Repeat after
another one or two months and again before bottling.
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5. When wine is clear and
all fermentation has stopped, siphon into wine bottles and cork the bottles
securely. Leave bottles upright for 3-5 days and then store them on their
side at 55 degrees Fahrenheit for six months (white wine) to a year (red
wine) before sampling. If not up to expectations, allow to age another year
or more.
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*
Source: www.winemaking.jackeller.net
A
conscientious wine maker monitors the fermentation of the wine (Steps 2-4). It
is during these steps that tests of acidity, pH, SO2, and temperature are essential. If any of these factors deviate from
established parameters a multitude of possible problems can occur. (See Figure 2 for a listing of the most
common problems). However, DionySENSETM permits the wine-maker to continuously monitor these
parameters.
Figure 2: Most Common Wine Problems Caused during
Fermentation
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Problem
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Primary Cause
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DionySENSETM
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Overly Sweet Wine
(Most common wine problem)
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Temperature is too cool and the yeast
remains thus the sugar can not be converted to alcohol
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With DionySENSETM, a home winemaker can continuously monitor the TEMPERATURE
of their wine. This will ensure that
the temperature doesn't dip to the point where fermentation won't start.
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Fermentation Won't Start
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The must becomes too sweet. Fermentation occurs when liquid containing
soluble sugar and trace nutrients passes through the cell walls of yeasts, is
acted upon by enzymes and consumed, and alcohol and carbon dioxide are
expelled through the cell walls as waste by-products.
If the specific
gravity of the must is too high, the alcohol and carbon dioxide cannot be
expelled through the cell walls and the yeasts die of self-inflicted toxic
poisoning.
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With DionySENSETM, a home winemaker can continuously monitor the SUGAR level
of the wine to ensure that level is never raised so high as to threaten the
yeast, but the required sugar is still delivered.
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Stuck Fermentation (When fermentation has started but stopped prematurely.
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This is usually caused by a lack of
nutrients or acid, or a change in temperature disagreeable to the yeast.
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With DionySENSETM, a home winemaker can continuously monitor the ACIDIC level
and TEMPERATURE of the wine to ensure that level do not threaten the
yeast.
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Bacteria Growth
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Not enough SO2
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With DionySENSETM, a home winemaker can continuously monitor the SO2
of the wine to prevent the growth of bacteria and spoilage of the wine.
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Failure to Clear
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This could include Pectin haze, Starch
haze, Lactic acid bacteria haze. One
possible cause for these hazes is high wine temperatures.
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With DionySENSETM, a home winemaker can continuously monitor the TEMPERATURE of
the wine to ensure that level do not threaten the yeast.
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Medicinal Taste
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Caused by too little acid in the must
during fermentation
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With DionySENSETM, a home winemaker can continuously monitor the ACIDIC of
the wine to ensure that level do not threaten the yeast.
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DionySENSE will be targeted to the wealthy wine aficionado
who wants to produce their own vintage.
This product will allow them to continuously and accurately monitor
their production. The home wine
enthusiast is typically affluent and is typically comfortable with gadgets and
technology. DionySENSE will enable
users to produce a quality of wine that will impress their friends.
DionySENSE will be sold through upscale specialty retailers
including Sharper Image, Brookstone, Hammacher Schlemmer, and SkyMall. The product
will be offered through these channels at a price premium. It will be bundled with a winemaking
software suite for home wine production, which will support the price premium
of $149.
There are numerous producers and suppliers of testing
equipment for the home wine maker. This
does speak to the growing home market segment.
However, there is currently no device that a home wine maker can
employee to measure the comprehensive factors necessary in wine making. There are many individual instruments that
must be purchased for each of tests conducted during fermentation and can cost
a home wine enthusiasts over $50. In
addition none of these devices measure these factors remotely.
When our position in the home market is secure, we plan to
expand our sales efforts to include larger-scale wineries such as E&J Gallo
and Sutter Home. Wineries that monitor
a large number of barrels could greatly benefit from DionySENSETM, and they are
also less sensitive to following the traditional manual wine production and
testing methods. We hope to build a
sales force that will market specifically to these corporate accounts. The marketing force will also work with the
manufacturing group and engineering to determine the feasibility of custom
changes to DionySENSETM
to secure a corporate account. Our
projections include sales to corporate customers beginning in 2006. The sales price to corporate customers, who
will purchase large volumes of DionySENSETM, will be $50 per unit.
Other potential growth options are to expand our product
line to include fermentation monitoring solutions for the beer and spirits
markets. However at this point these
projections are beyond our five year horizon and thus are not included in the
financial summary.
The DionySENSE profit model includes sales to the home wine
enthusiast and eventually to larger scale wineries. The profit model is based on the sales volume figures below.
Figure 3: Sales Volume Assumptions
The following figure presents the revenue and expense data
associated with the above sales volume assumptions. For more details about the assumptions associated with unit
costs, development costs, and marketing and other costs see sections 3.2
(Prototype and Development Costs), 3.3 (Mass Production Costs, and 3.4
(Management and Administrative Costs) respectively. It also should be noted that since the corporate customers will
be purchasing DionySENSE in large quantities they receive a significant
discount off the home user list price.
Figure
4:
Profit Model (Most Likely Scenario)
The prototype costs includes the labor and materials to
design, construct and test two prototypes.
The costs also include the tooling costs for an aluminum die in 2003 and
a steel die in 2004 (when production increases). In addition on-going research and development costs are also
included.

Figure 5: Prototype
Costs (Most Likely Scenario)
Mass production costs include the costs to produce the
amount of DionySENSE to meet demand.
These estimates also calculate the variable unit costs for
DionySENSE. These costs are reduced as
the costs of the mote and base station technologies decrease over time.

Figure 6: Mass Production Costs (Most Likely Scenario)
Management and administrative costs includes the overhead
and labor associated with operating and managing the company. In 2006, the company will ramp of staff to
support the marketing of DionySENSE to corporate customers.

Figure 7: Management and Administrative Costs (Most
Likely Scenario)
In addition to the most likely scenarios costs and revenues
were estimated given a best case and worst case scenario. This information is summarized in the
following exhibits.
Figure
8:
Best Case Scenario
Figure
9:
Worst Case Scenario
DionySENSETM is designed with attention to the elements of design
for manufacturability (DFM). The casing
is a pleasant shape devoid of sharp corners and transitions. The casing is comprised of two halves, each
moldable with a single parting plane mold.
These two halves are secured together with three fasteners that are
recessed into the backside of the device.
It is of interest to note that the parting plane does not lie on a
strict geometric plane, but rather follows the contour of the DionySENSETM. Such aesthetic considerations are of
importance to the home winemaker - the true connoisseur.
To inform the user of the status of their wine, three LED
lights are integrated into the prototype.
These LEDs appear green if parameters are within specified limits. If parameters (such as temperature, pH,
sugar etc.) are higher than desired the red LED will be activated. If the temperature is lower, a blue LED is
switched on.
Figure 10: DionySENSE


The main casing of the DionySENSETM is, as
described previously, comprised of two halves.
Each half is injection molded with a simple single parting plane
mold. Because of the smooth contours,
the injected polymer should flow fairly freely. This may contribute to low dwell times, speeding up the
production process. In addition, QA
overhead may be reduced if we do not experience defects due to poor injection
molding design.
Our prototype casing was made to 2.25X scale in order to
accommodate the prototype mote and battery pack. With future reduction in size of the mote, we can achieve our
original design intent for a small, unobtrusive monitoring device. The small projected area of our casing (five
square inches) will reduce the clamp force required from the injection molding
machine; again decreasing the requirements and cost of production.
We plan on molding these motes using acrylonitrile butadiene
styrene (ABS) plastic, which is a standard mass production injection molding
material. The butadiene toughened
structure of ABS will contribute to the toughness we seek. The DionySense casing will be tough enough
to withstand accidental impacts due to customer error. In addition to the excellent strength and
moldability of ABS, the ABS feedstock pellets can be manufactured to customized
color specifications. By having the
DionySENSETM
color embedded as-molded, we eliminate post processing steps such as priming
and painting. Also, the appearance of
the casing will be more resilient in that scratches and scuffs will not be
obvious since the substrate is the same as the surface.
The bottom half of the DionySENSETM casing has
reinforcement ribbing for the fastening standoffs. These ribs are sufficiently thin in comparison with the wall
thickness as to not cause a concern for unsightly sinks.
In order to ramp up to full production several changes from
the prototype design are required. Once
we have completed our development of the sensor package, a unified PCB design
can be made that incorporates the necessary circuitry to drive each of our
sensors. The PCB should be designed to
fit within the specified space allotment.
Full production steel molds will have to be made. Both halves of the DionySENSETM casing are of
similar size and geometry. Therefore,
it may be possible to shoot both parts at once in a single mold. Analysis of this hypothesis should be done,
as it can lead to significant cost savings.
The stainless steel molds are projected to cost $90,000.
Assembly of DionySENSETM SENSE requires positioning the PCB
within the casing. This process will be
streamlined with alignment/mounting pegs that allow the PCB to mate with the
top casing. The sensor wire bundle is
then routed through the side hole in the casing. The bottom casing is then set into place and fastened with three
screws.