BMU2 — различия между версиями

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The hand selection time for row is the functon of  SKU, position number and quantity of items per row.
 
The hand selection time for row is the functon of  SKU, position number and quantity of items per row.
  
$$G(sku,qty, zone, position)=3600/Productivity+comfort+scan*T_sc*'''Qty'''$$
+
$$G(sku,qty, zone, position)=3600/Productivity* Qty+comfort+scan*T_sc*'''Qty'''$$
  
 
$T_sc=3$ - scanning time.
 
$T_sc=3$ - scanning time.

Версия 21:40, 16 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.

$$G(sku,qty, zone, position)=3600/Productivity* Qty+comfort+scan*T_sc*Qty$$

$T_sc=3$ - 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 could 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.