The company manufactures bulk products that are collected by the purchasers in their plants, as a consequence, each company sends their trucks to retire the products and to transport them to their destination.
Nowadays, this logistics process is developed the following way:
The trucks arrive to the cement plant to get the product and, if the purchase order is correct, the truck is loaded. For this, we need to know how much the empty truck weighs, in order to control the cargo´s weighing, so, the collection can be made according to the weight.
On the other hand, according to current transport regulations, no transit truck can weigh more than 45 thousand kilos. Thus, if it is loaded into the truck with more weight , it would not be released for driving on the road.
Then, for the weight of the truck, both full and empty, it must pass through a scale at entry and exit. This was a problem for the correct vehicle circulation in the plant, before implementing RFID: it took from 3 to 5 minutes to weigh each truck, what in seasonal periods meant a queue of 100 to 300 trucks in the various administrative steps within Minetti.
In this context, the solution was:
-Placing a reading point in every scale in the access ramp
-Identifying each vehicle before being placed on the scale (tags were placed on the windshield of the truck).
Being this ready, currently, it is known which scale was used and you can get an automated process weight reading, avoiding manual control.
Thus, each tagged truck, after being weighed, is assigned a weight that is settled on a centralized management software, with which system also controls the RFID.
The process begins when the truck arrives at the cement plant´s facilities and the driver gives the papers required by the company. Once everything presented is correct, he is given a shift and a removable and reusable tag to put on the windshield, as trucks are from a third person.
The tags are selected for this implementation Semi Liabilities, this means, battery-assisted. And in order to cut costs, tags can be returned once the process is finished within the plant Minetti.
Then, when it´s their turn, they are directed to the scale to detect the presence of the tag and identify which truck it is. After that, once the truck is on the balance, its weight is matched to the tag and to the information management system.
All in all, the complete system consists of the following:
- When a truck is near the scale, its presence is detected. At that moment, the system reads it
- Later there is a traffic light indicating that the truck must be stopped
- Once the truck´s tag is read and the scale is empty, the light indicates that the truck can move
- Then the truck should be positioned on the scale
- Then, there is a traffic light that tells you that you should get off
- Finally, the truck receives the material that it was to withdraw
- Before retiring to be weighed on the exit door, where there is another reading, which is also marked with lights.
Thanks to the RFID implementation, wait times to complete the process within the plant Minetti was reduced to one minute per truck.