Truck Crop Yield Monitor

Truck Crop Yield Monitor
Truck Crop Yield Monitor
Pocket PC Version
Page 1
Truck Crop Yield Monitor for Pocket PC
Contents
Nuts & Bolts ................................................................................................................ 2
GPS Configuration ........................................................................................................ 3
Yield Monitor Configuration ........................................................................................... 4
Setting the Data Home Location .................................................................................... 5
Database Display & Editing ........................................................................................... 6
Using the Record Editor ................................................................................................ 7
Field Names, Truck IDs & Crop Parameters ..................................................................... 8
Operation ................................................................................................................... 9
KB Manufacturing Harvest Monitor (TNKN-0700-BELT)
Standard Operation Procedure ............................................................................ 10
How to Enter Parameters & Parameters List ......................................................... 11
Test Weight Calibration ..................................................................................... 12
Calculating Calibration Values ............................................................................. 13
Calibration to Truck Weights .............................................................................. 14
Time and Date Option ....................................................................................... 15
Load Cell Connection ......................................................................................... 16
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Page 2
Nuts & Bolts - Virtual & Real
Welcome to the first season of the
Pocket PC Version of the Truck Crop
Yield Monitor. For Year 1 this is going
to be a quick and dirty explanation of
the screens and terms used in the software. This is the first season for this
version of software and we will try to
cover enough here to take care of
most of the simple problems.
This software has been developed in
the newest development tool from Microsoft, Visual Studio .Net, as with
any .Net application, it is required that
the Pocket PC that is going to run the
software, have the .Net Compact
Framework installed. This will have
been done for you the first time, but if
you let the batteries on the Pocket PC
go dead, the .Net Compact Framework will need to be reinstalled.
The cab files for installing the .Net
Framework have been included on
the install CD with this manual. As
time goes on the framework will be updated from time to time. The version
of the framework included in this release is Version 1.1. In the near future
all Pocket PC’s will ship from the
manufacturer with this framework installed.
This software is designed to work together with a truck weight monitor
from KB Manufacturing, Fisher, MN. It
handles the inputs from the load cells
and the shaft speed sensor and outputs a weight to the serial port with
the weight that on the conveyor each
time that the shaft speed sensor sends
a pulse. There are some settings that
need to be made in the monitor to
send data from the serial port. Refer to
the documentation for the weight
monitor for how to change these settings.
204 Fifth Street East, Halstad, MN 56548
Hardware Note:
Depending on the harvester the data may
be sent one or two times per revolution of
the shaft. The weight ideally should be sent
no more than 3 times per second. The laptop version takes weights up to 6 times per
second without problems, but the Pocket PC
has a tough time keeping up over 3 Hz. The
shaft RPM reading in the software is calculated for one pulse per revolution. If the
shaft RPM is reading over 150, we may want
to look at putting on a collar with only one
pulse per revolution. On the other side, if
the shaft RPM is reading below 60 we may
want to put a collar on that has two pulses
per revolution. A range of 60 to 150 pulses
per second is the ideal range for the Pocket
PC Version.
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Truck Crop Yield Monitor for Pocket PC
GPS Configuration
Any GPS receiver that is capable of sending
data that conforms to the NMEA-0183 specification should be capable of being configured to work with the software.
The GGA string and either a VTG or RMC
string must be sent from the receiver once
per second. The VTG or RMC string is required for providing ground speed.
The baud rate can be configured in the software, 4800 or 9600 is recommended.
With Satloc receivers, select the VTG instead
of the RMC, as most Satloc receivers that we
have worked with, send a malformed RMC
string.
To get to the GPS Settings in the software,
from the Main Screen on the “Setup” Tab,
click the “GPS” Button, the screen to the
right will appear. It defaults to the most
common settings. If the GPS is connected to
the Port on the Bottom of the Pocket PC, it
will be Comm Port 1.
For operation in the Red River Valley, the
UTM Zone Setting should be left at Zone 14.
For Southern Minnesota users, if your longitude is less than 96, you may want to use
Zone 15, Sidney, MT users should use Zone
13.
Click “Save Changes” to apply any changes
that you have made and exit back to the
Main Screen. Clicking OK, will exit but will
not save changes.
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Page 4
Yield Monitor Configuration
To make the settings required for yield monitor operation, click the “Yield Mon” button on
the Setup Tab.
The most difficult setting to make is the
Comm Port selection. Depending on the Pocket
PC, the port that is created when the Serial IO
card is inserted, is numbered differently on almost every PC.
It should be between 4 and 7. For HP iPaq
3900 and 5400 Series Pocket PC, it is usually
port number 5 or 6. If the port does not exist
when you click “Start”, you will receive an Error “Port Already in Use or Is Not Available”
Error. Since ports are assigned to Blue Tooth
or Phone ports, an incorrect setting may not
cause an error, but just will not communicate
with the Yield Monitor. Start with Port 6, if you
get an Error Message, and then try 5 and then
7.
The test for success is to engage the harvester so that the sensed shaft is turning. This
will cause the light on the Truck Weight monitor to blink. If communications are working the
“Yield Mon” light on the “Display” tab will blink
in time with the light on the Truck Weight
Monitor.
The row spacing and row count numbers are
self-explanatory. Set the Row Spacing to the
spacing of your rows, and the Row Count to
the number of rows that your harvester collects in a full pass.
Delay Time
Delay Time is a calculated number. The number that is entered here is the amount of time
that elapses from when the crop is first introduced into the machine, until that crop is going
across the load cells. I suggest setting it at 6
seconds to start.
When you get to the field, put the harvester
in the ground and begin harvesting. Count seconds in your head, from the time you begin
harvesting until the crop is flowing across the
load cells. Enter the elapsed time in the delay
time box. By doing this the software will look
back in time to see where it was when the crop
that is on the load cells now was harvested.
This will help to create precise yield maps.
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Filter Period
Filter Period is the number of seconds of
yield readings are averaged using a moving average, to create the values that will
be stored in the map. 4 seconds is the suggested setting. If the display is updating to
smoothly for your taste, then decrease the
number, if it is to erratic, increase the
number.
Internally all yield pulses from the truck
weight monitor are averaged with the last
four readings and the amount of time that
has elapsed to collect those four readings,
those four readings are then used to calculate a crop flow in Lbs per Second. The filter period controls how many Lbs per Second readings are averaged to calculate the
final yield.
Harvester ID
For farms with multiple harvesters, to be
able to separate which data came from
which harvester. Suggested scheme is letters for the Harvesters A, B, C, D etc. The
load names are automatically generated
with the scheme Harvester ID-Load Number. The 1st load from harvester A is load
A-1. You can then use the time tags in the
DBF File to track down where a specific
load came from in the field.
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Page 5
Truck Crop Yield Monitor for Pocket PC
Setting the Data Home Location
The Data Home button on the Setup Tab,
is how the user controls where to store the
collected data from harvest operations.
The setting works a little differently the
first time it is run. When you press the
Data Home button, the Screen Below appears.
A Storage Card of some type is HIGHLY
recommended. Storing data on the Pocket
PC is asking for a disaster. If the battery
goes dead, it’s all gone!
By default, the program is just waiting for
you to click on the Storage or Data Card
on which you want to store the data.
When the Screen comes up, click on the
Storage Card. The “Selected” label will
then Change to “\Storage Card\GKYield\”.
Click “Save” to save the setting.
The text that is in the “New Directory
Name” box will be the name of the folder
that is created on the data card to store
the data. The first time you do this the
New Directory Name box will contain
“GKYield”, if a path has already been
stored once, it will be blank.
If it is blank like the one on the right then
click the “GKYield” folder on the Storage
Card. Note that the selected label ends up
the same “\Storage Card\GKYield\” with
either option. Click the Save Button to
save changes.
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Page 6
Database Display & Editing
The databases that are used in GK Technology products are standard dBase IV. We
will start with how the database editor
works and continue on to the specific databases in later pages.
These databases can be read and created
in Excel and Access as well as a great many
other applications. Since we had to write
dBase to create SHP files, we adopted it as
the databases to hold the field names, truck
names and target weights, and the Crop Parameters. The Field and Load Reports also
use the dBase format as well, more on that
in the Collected Data Section.
This is showing the first record in the Crops
database. Screen shot on the bottom of the
page shows the Crop parameters table in
Excel.
The next page on record editing
starts from a click on the new
button on the screen.
To view other names in the database:
Click the “>” to move forward in the list.
Click the “<” to move backward in the list.
Click the “>>” to move to the end of the database
Click the “<<” to move to the beginning of the database.
Clicking “Edit” will allow you to edit the Record that is displayed.
Clicking “New” will create a new entry at the end of database.
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Truck Crop Yield Monitor for Pocket PC
Using the Record Editor
To the right is the Data Entry box.
We will demonstrate editing the
Crop
Parameters
database.
It
should provide enough of a demonstration to allow you to edit all of
the databases in the program. This
editor is shown when you click
“Edit” or “New”.
To Create a “New Record”, click
the “New” Button, the Data Entry
will appear. All of the data entries
are blank. Figure 1
Figure 2
Figure 1
To edit an entry click on the item
you want to edit under the column
label. In Figure 2, click on CROPNAME.
Now the box at the top of the
screen has CROPNAME next to it,
and the cursor is in the textbox at
the top of the screen. As we type, it
will fill the text into the box as in
Figure 3.
By clicking on each of the entries
under column, in figure 4 I have the
data all entered. Clicking on the
Keyboard Icon on the bottom of the
screen will hide the keyboard.
Figure 3
Figure 4
Figure 5
Figure 6
In Figure 5 by clicking “Update Record”, the changes are saved.
Figure 6 shows us back out of the
editor with the new record displayed.
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Page 8
Field Names, Truck IDs & Crop Parameters
The Field List, Truck List, and Crops List, all retrieve their information
from databases.
These databases are stored in
“\Program Files\GK Yield Monitor\” with the EXE that runs the
program.
The easiest way to edit these databases is with the editor on the
Pocket PC. However, if you have multiple units to set up, do the set
up on one unit and copy the above folder to the other Pocket PC’s using a storage card.
Field ID Database:

Field ID

An identifying name for each field.
Crop Parameters Database:

Crop Name

Harvest Units
 The Name of the Unit used for measuring this commodity. Tons,
cwt, bu, etc.

Lbs Per Unit Divisor
 The number used to divide the truck weight, to get the units.
 Enter 2000 for tons, 100 for cwt etc.

Tare Percent
 Enter the % of tare that is being returned to the field from the
piler.
Truck ID Database:

Truck ID


An identifying name for this truck.
Net Weight

This entry is the desired net pounds that you would like loaded
on this truck. When entered, it will subtract from the current
truck weight and show lbs left to load.
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Truck Crop Yield Monitor for Pocket PC
Operation
Now that all of the settings are in place and
you have Fields, Trucks and Crops, here is
the operation instructions for use.
Steps:
1. Click the Start Tab
2. Select the Field from the Field List
3. Select the crop that you are harvesting
from the Crop List
4. Click Start.
5. Click the Display Tab to View Harvest
Info.
As long as GPS Status is OK the GPS Indicator Light will remain green.
Each time a reading is received from the
Yield Monitor, the “Yield Mon” Indicator Light
will flash.
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KB Manufacturing Harvest Monitor (TNKN-0700-BELT)
Standard Operation Procedures (LCD Display)
This unit has an input for a proximity sensor that senses the revolution of the moving belt. The basic requirement is that the switch makes at
least one closure (pulse) when the
belt travels the distance of the scale.
Each time the pulse is received by
the Harvest Monitor, the current
weight is accumulated.
There are
two accumulators, a "load" total and
a "grand" total.
Calibration is first
done by placing of known weight,
then after running material and
weighing the material on a static
scale, adjustments are made by percentage correction.
TOTAL TONS BUTTON:
To activate an optional printer, press this
button. This button also allows the viewing
and clearing of the grand total. Press the
button and hold it in. The display will show
the grand total in tons by 1/10 ton increments. To clear the grand total, press the
ZERO button while still holding the TOTAL
TONS button.
ZERO BUTTON:
Has two Functions depending on
Operation Mode:
 IN THE RUN MODE
Press to zero the accumulated weight.

Note: This does not clear the load accumulation; this needs to be done separately
by pressing the ZERO button while in the
RUN mode.
IN THE STOP MODE
Press to zero the belt
reading with no material
on the belt.
CAL-1 & CAL-2:
Used For Calibration and Data Entry
RUN/STOP BUTTON:
Changes the unit operation mode.
RUN for accumulation of
weights
 STOP mode for calibration.
 When the system is in this
mode, the RUN lamp to the
right of the display will flash,
and the total will be accumulated.

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Truck Crop Yield Monitor for Pocket PC
KB Manufacturing Harvest Monitor (TNKN-0700-BELT)
How to use parameters
Parameter Entry:
1. Turn OFF and hold the CAL-1 button.
2. Turn ON while holding the CAL-1 button
until the display shows ------- then release the CAL-1 button.
3. Press and release the RUN/STOP button.
4. The display will show 01--nn (The 00 denotes parameter number 1 and the nn
may be any 2-digit number representing
the current value set for parameter number 1.
5. To change the value of this parameter,
press the TOTAL TONS button until the
digit you want to change is flashing.
6. Press the CAL-2 button to increment the
flashing digit.
7. To cycle to the next parameter, press the
TOTAL TONS button until the parameter
number is flashing, then increment by
pressing the CAL-2 button.
8. Continue steps 5 through 7 for all parameters desired.
9. When finished, press the CAL-1 button to
return to the weight display mode.
Parameter List
# 0 = NOT USED
this parameter to the minimum value that can
be accumulated. If product on the scale will
always be over this 5 bounce, then set this parameter higher than 5 but less than a normal
weight value.
# 1 = Sample/averaging rate. A setting of one is
the fastest display rate update, and does not average. A setting of 3 (for example) will take three
samples and average them before updating the
displayed weight.
NOTE: MAKE SURE THAT THE UDATE RATE IS
FASTER THAN THE MAXIMUM PULSE RATE FROM
THE PROX. SWITCH.
# 6 = Decimal point position. 02 will cause 0.00
# 7 = Print size and Time/Date option
 00=small 01=medium 02=large all with
no time/date print
 10=small 11=medium 12=large with
time/date printed
# 2 = Displayed graduation size. Set at 10 if a
graduation size of 10 is required.
# 3 = LEAVE THIS SET AT 99
The overload trip-point in hundreds of graduations +1% if the scale is to be 2,500 by a graduation of 1, then a setting of 25 would cause the
overload to activate at 2,525.
# 8 = Printer pre-spaces (indent) and print inverted x0 = non-inverted print x2 = inverted
print
 0x = no pre-spaces
 2x = 4 pre-spaces (double the digit entered)
 Set to 99 if no overload point is desired.
 Set to 00 for a 10,000 graduation overload.
# 9 = Remote data enable / Printer type and
baud rate
 x0= 300 baud inverted data
 x1= 300 baud print data
 x2= 1200 baud PR-2 roll-tape printer
 x3= 1200 baud PR-1 ticket printer
 0x= no remote output
 1x= continuous remote output enabled
 2x= optional on-demand remote output
enabled (this option must be ordered at
time of purchase)
# 4 = Motion detection window setting. Set this to
the number of graduations that will be allowed as
a no-motion condition.
# 5 = ACCUMULATION THRESHOLD
This parameter is used to set the minimum
value that can be accumulated. For example, if
the empty belt bounces to 5 when the belt splice
passes, this will create an increase in accumulated
weight it the system is left in the accumulate
mode when the belt is running and empty. Set
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KB Manufacturing Harvest Monitor (TNKN-0700-BELT)
Test Weight Calibration
This procedure is done to set the initial calibration. From then on, the
"Minor" calibration routine can be used.
1. Turn OFF and hold the CAL-1 button.
2. Turn ON while holding the CAL-1 button until the display shows------- then release the CAL-1 button.
3. Press and release the CAL-2 button.
4. The display will show the raw UN-calibrated value.
5. Assure that the scale is at a zero load condition.
6. Press ZERO to remove the dead load.
7. Load the scale with a known weight value.
8. The display must now show a value larger than the test weight. If the display is
not larger than the weight value, do one of the following.



Check the load cell size, it may need to be reduced.
Increase the graduation size.
Raise the internal amplifier gain by adding the jumper across the gain pins on
the main board.
9. When the weight is stable, press the RUN/STOP button and the display will come
up with the last used calibration weight that was entered. If this is the same
weight as what was placed on the scale, go to step #11.
10. Change the display to show the known calibration weight value.
 Press the TOTAL TONS button to select the flashing digit.
 Press the CAL-2 button to increment the flashing digit.
11. Press the CAL-1 button, and the display will return to the weight display mode,
showing the calibrated weight.
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Truck Crop Yield Monitor for Pocket PC
KB Manufacturing Harvest Monitor (TNKN-0700-BELT)
Calculating Calibration Values
Example #1: Yield Monitor Reading is Too Low
The displayed total on the Harvest Monitor
is 26500 and the actual weight of this load
is 38900.
38900 - 26500 = 12400
actual
weight
1. Subtract 26500 from 38900 to
get the difference (12400)
displayed
weight
..
12400
difference
2. Divide the difference (12400) by
the Harvest Monitor total (26500)
to get (.4679) and move the
decimal point 2 places to get
percentage 46.79%.
(difference)
26500 = 0.4679
displayed
weight
0.4679 = 46.79%
46.79% + 100% = 146.79%
3. Since we need to increase the
total, add 100.00 percent to get
146.79% and use this as the
entry in the percent correction
procedure.
146.79% - Percent Correction
Example #2: Yield Monitor Reading is Too High
The displayed total on the Harvest Monitor is 56200 and the actual weight of this
load is 32490.
56200 - 32490 = 23710
displayed
weight
1. Subtract 32490 from 56200 to
get the difference (23710)
2. Divide the difference (23710) by
the Harvest Monitor total
(56200) to get (.4218) and
move the decimal point 2 places
to get the percentage 42.18%
23710
difference
(difference)
actual
weight
..
56200
displayed
weight
0.4218 = 42.18%
42.18% - Percent Correction
42.18 is the entry for the percent
correction procedure.
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Page 14
KB Manufacturing Harvest Monitor (TNKN-0700-BELT)
Calibration to Truck Weights
After initial calibration, the system can
be run and the material weighed by a
static scale. The static weight then can
be compared to the systems accumulated total and a calibration correction
can be made.
The recalibration can
decrease the total by any amount, but
can only increase by 99.99 percent.
Therefore if the true weight is more the
twice the systems total, do the initial
calibration correctly, then re-run a test
load.
PERCENT CORRECTION
PROCEDURE:
1. ASSURE THAT THE SYSTEM IS IN THE
STOP MODE
2. To access this feature, requires that
two buttons be pressed and released
quickly and at the same time. Press
and release the CAL-1 button and the
CAL-2 button at the same time.
3. If done correctly, the display will show
0000.00.
4. Enter the percent to correct. (Over
100.00 is up, below 100.00 is down)
5. Use the TOTAL TONS button to increment the flashing digit and use the
RUN/STOP button to change which
digit is flashing.
6. When the desired number has been
set, press the CAL-2 button to enter
the number.
7. With the belt clear, press ZERO to balance the scale.
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Truck Crop Yield Monitor for Pocket PC
KB Manufacturing Harvest Monitor (TNKN-0700-BELT)
Time and Date Option
If the time/date option is installed, the time and date can be
printed after the weight. The time and date is battery powered
and will run when power is removed from the unit.
To View and or Set the Time/Date:

Press the CAL-1 button, and hold until the display shows
the current time, and then after a short delay, the date
will be displayed.

To set the Time/Date, press and hold the ZERO button,
while the time/date is being displayed. After the date has
been displayed, the unit will go into the entry mode, with
the time display flashing.

Use the TOTAL TONS button to increment the flashing
digit, and use the RUN/STOP button to select which digit
flashes.

When the correct time has been set, press and release the
CAL-2 button to advance to the DATE display.

Use the TOTAL TONS button to increment the flashing
digit, and use the RUN/STOP button to select which digit
flashes.

When the correct date has been set, press and release the
CAL-2 button to return to the weight display mode.
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Page 16
KB Manufacturing Harvest Monitor (TNKN-0700-BELT)
Load Cell Connection
INSIDE TERMINAL
PIN
PIN
PIN
PIN
PIN
#
#
#
#
#
1
2
3
4
5
=
=
=
=
=
NEG EXCITATION (Black)
POSITIVE EXCITATION (Red)
POSITIVE SIGNAL (Green)
NEGATIVE SIGNAL (White)
SHIELD
REVERSE SIGNAL LINES IF SCALE OPERATES BACKWARDS
INTERNAL CONECTOR DB9 (* denotes lines for proximity switch)
* PIN 1 ---- DC GROUND (Proximity switch ground)
PIN 2 ---- RS232 CONTINUOUS DATA OUTPUT (OPTIONAL)
* PIN 3 ---- PULSE INPUT from proximity switch
PIN 4 ---- (RS232 SIGNAL INPUT - OPTION)
* PIN 5 ---- 5 volt power for solid state proximity switch
PIN 6 ---- Printer data to pin 3 of printer, or -20ma Printer data
PIN 7 ----+20ma Printer
PIN 8 ---- Continuous data to computer, or - 20ma continuous data.
PIN 9 ---- + 20ma continuous
Printer Data:
Baud rate selectable 300, 600, or 1200
Data bits are 8 with 2 stop bits and no parity
Nominal single line print data string will be;
Polarity sign / 6 weight digits / LB or KG or TN / Time and
Date if option is ordered / Carriage Return and Line Feed.
------------------------------------------------------------Remote Continuous Data:
Baud rate is 1200 fixed.
Data bits are 8 with 2 stop bits and no parity
Data stream is as follows;
STX / Space or - / 6 weight digits / L / G for gross /
if negative
K N for net
Space or a
/ Carriage Return / Line Feed
M if in motion or
O if in overload
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