BMU2 — различия между версиями
AlexHel (обсуждение | вклад) |
AlexHel (обсуждение | вклад) |
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Строка 53: | Строка 53: | ||
It is necessary to estimate the mean and variance. | It is necessary to estimate the mean and variance. | ||
− | The model should be described in latex as an instruction and description. | + | The model should be described in latex as an instruction and description and uploaded to https://drive.google.com/drive/folders/1p9uMrZAzSLQwQt3uGLilIxYZK9VlmDX2?usp=sharing. |
Версия 20:30, 5 ноября 2020
We have the conveyor with $10\le M \le 100$ stations for hand selection of products items to boxes. The volune of box is $V_b=0,034$.
List of sku is in SKU.xlsx file.
Each box moves from the beginning to the end of conveyor throu the set of stations $Z=\{z_1, z_2 dots, z_M\}$.
Each station works with zone, including the set of positions $N_m$.
The structure of store is in ZONES+positions.xlsx file
Each position is for one type of goods.
The $sku$ coluld be assignned with position only if position is empty.
The hand selection time for row is the functon of SKU, position number and quantity of items per row.
$$G(sku,qty, zone, position)=3600/Productivity+comfort+scan*T_sc$$
$T_sc=3$ - scanning time.
For comfort we will use the listed times:
AA 5 AB 10 AC 11,25 BA 12,5 BC 15 CA 17,5 CC 20 Д 22,5 ST 50 OБ 150
and is tabulated in our case.
Each zone has $N_z$ positions. We will assume that each position coukd be loaded from store any time we need in.
The source data is the set of rows per day:
sku - good type qty - quantity datetime - dte and time order - номер заказа
Box moves with $v=0.6m/s$ from one section to another.
The distance between the stations is $a=8m$.
We should propose the input goods flow routing to zones and positions to minimize the time $T$ for daily hand selection.
It is necessary to estimate the mean and variance.
The model should be described in latex as an instruction and description and uploaded to https://drive.google.com/drive/folders/1p9uMrZAzSLQwQt3uGLilIxYZK9VlmDX2?usp=sharing.