6.4.13.9 WEIGHING (EPC 4, EPC 4A)
1. Weighing steps:
EPC can weigh the chickens via weigh channels and saves some data to give
information to user.
User can monitor chickens status day by day via these data.
Flowing of the operation is quite simple and explained below;
2. Is curve mode on?
If curve mode is enabled, weighing works. Otherwise weighing functions are disabled.
When curve mode is switched to ON, EPC uses equality below only once.
DAY AVERAGE WEIGH =
AVERAGE WEIGH PAGE
INITIAL WEIGH
DAY AVERAGE WEIGH MINIMUM LIMIT =
DAY AVERAGE WEIGH * (1 -
AVERAGE WEIGH PAGE
MINIMUM LIMIT)
DAY AVERAGE WEIGH MAXIMUM LIMIT =
DAY AVERAGE WEIGH* (1 +
AVERAGE WEIGH PAGE
MAXIMUM LIMIT)
for example;
DAY AVERAGE WEIGH = 100gr
DAY AVERAGE WEIGH MINIMUM LIMIT = 100 * (1 -0.3)
DAY AVERAGE WEIGH MINIMUM LIMIT = 70gr
DAY AVERAGE WEIGH MAXIMUM LIMIT = 100* (1 +0.15)
DAY AVERAGE WEIGH MAXIMUM LIMIT = 115gr
It means that EPC only save the weights between 70gr- 115gr.
EPC recalculate DAY AVERAGE WEIGH same as below;
DAY AVERAGE WEIGH MAXIMUM LIMIT and DAY AVERAGE WEIGH MINIMUM LIMIT are also recalculated
at each new DAY AVERAGE WEIGH calculation.
2. Is data stable?
EPC uses only stable data for calculation and logs.
If data changing smaller than
WEIGHING PARAMETERS PAGE
SS LIMIT VAL parameter during
WEIGHING PARAMETERS PAGE
SS TIME parameter, EPC accepts the data stable.
3
.How is EPC aware of chicken movement?
EPC takes sequential two weights and calculates their different;
Different = Old Weight - Last Weight
If different is between TARGET WEIGH MINIMUM LIMIT and TARGET WEIGH MAXIMUM LIMIT this weight
is accepted valid chicken weight and it is recorded to the nonvolatile memory.
4. Saved Data Struct
Today and yesterday data are stored in nonvolatile memory and each field has max. 9999 records.
Each weighing channel has own today and yesterday fields.
At the other hand, below data is saved for maximum 1005 days (curve can be maximum 1005 days).
- Average weigh,
- Feed consumption,
- Water consumption,
- Electricity consumption,
- Outside sensor minimum value,
- Outside sensor maximum value.
WEIGHING PARAMETERS
SS TIME : 1.0SEC
SS LIMIT VAL: 15GR
AW MIN SMPL : 100
AW SMPL PER : 2HR
AVERAGE WEIGH1
INITIAL WEIGH: 100GR
MINIMUM LIMIT: 30%
MAXIMUM LIMIT: 15%
3
Record No=1
Record No=Number Of Record
WEIGHT[Record No]
Number Of Record
DAY AVERAGE WEIGH =
77