KR101401986B1 - Notification method and system of estimated time of arrival of Auto Guided Vehicle for carring the semi material in tire plant - Google Patents

Abstract

The present invention relates to a system for notifying the estimated time of arrival of an auto guided vehicle for carrying a semi-manufactured material in a tire plant which includes the steps of: (a) requiring a corresponding semi-manufactured material in a forming device; (b) displaying a current working state by using a semi-manufactured material system server and an auto guided vehicle control system; and (c) monitoring an arrival notification to finally display and operate corresponding state information collection and individual destination moving time information.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and system for notifying an estimated time of arrival of an unmanned vehicle for transporting semi-finished goods from a tire factory,

(B) a step / means for displaying a current work progress status on a monitor using a semi-finished goods distribution system server and an unmanned vehicle control system; and (c) The present invention relates to a method and system for informing an estimated arrival time of an unmanned transportation vehicle for carrying semi-finished goods by a tire factory including an arrival notification monitoring step / means for collecting the status information and calculating the time required to travel between individual destinations.

In the automated tire factory, semi-finished goods carrier (LGV: Laser Guide Vehicle) carries semi-finished goods produced in the material process to the post-production molding process.

In general, a molding machine which is operated by arranging a large number of equipments should be supplied with seven to eight semi-finished products basically per molding machine.

In order to produce several specifications per molding machine, the following conditions are required to supply the bogie with the molding machine in the material process.

1) If the same standard is produced but the semi-finished product of that standard is exhausted

? In such a case, only the consumed semi-finished product may be supplied in the material process.

2) When the standard replacement is necessary

? In this case, the semi-finished products currently used are not exhausted, but all semi-finished products have to be supplied in the material process since the entire quantity has to be replaced with the following standard. Thus, the supply of semifinished products is carried out in thousands of molding machines every day.

In the field, there are basically one person for two or three molding machines for semi-finished material replacement worker in the molding machine.

To date, in the prior art method, when a bogie supply is required in molding, a material replacement operator who manages the bogie presses a bogie request button installed at each bogie mold release off.

Then, the request button lights up, and this information is transmitted to the upper semi-finished product delivery instruction system (hereinafter referred to as ELS) through the PLC, and the information transmitted by the ELS is transmitted to the semi-finished goods distribution system server .

The MHC then receives a return request from the molding machine.

That is, the ELS gives the MHC information about the molding machine NO., The requested semi-finished product information, the relevant semi-finished product specification, and the required length.

The MHC then searches the inventory in the warehouse to see if there is an inventory in line with the request and, if there is a matching inventory, orders the warehouse work to the stacker crane.

When the corresponding car arrives at the delivery C / V after the S / C has been delivered, MHC will issue a transportation request instruction to the LSC (LGSC System Computer).

The LSC searches for the current idle state LGV, and if there is no idle state LGV, the state information of all LGVs is continuously searched until the idle state LGV occurs.

When the idle state LGV receives the order, the truck is loaded and transported to the warehouse leaving station. When the LGV completes the delivery of the corresponding semi-finished goods to the final destination molding machine, the request button in the semi-finished product off-off of the molding machine is turned off.

The prior art will be described.

Korean Patent Publication No. 10-1143884 discloses a method of distributing workloads by characteristics according to transportation requirements of semi-finished goods transportation vehicles for producing tires

The prior art is for the logic to distribute the line-by-line evenly so that the LGVs do not get caught in traffic in the upper system in order to smoothly transport according to the line-by-line semi-finished product transportation requirement in the molding process, I do not know if I will arrive.

Korean Patent Publication No. 10-1129691 discloses a method of supplying a bogie to reduce the amount of semi-finished products in a tire factory. In the prior art, however, when the semi-finished bogie is automatically transported by a molding process in a material process, However, the patented technique is to determine the molding operation condition of semi-finished products required for molding within a certain time band from the point of production, and to send only the required quantity of bills .

    Therefore, the above prior art also does not provide an estimate of when the requested bogie will arrive.

Problems of the prior art will be discussed.

In this situation, there is no problem if the molding worker or the material replacement worker waiting for semi-finished goods are transported and supplied immediately as requested by the LGV. However, if the replacement is necessary or the transportation request is made as described above, a request for the semi-finished product However, there is a lack of information on when these bills will arrive.

In this case, if the waiting period continues until the demand for the semi-finished product is received, that is, when the request for conveying the bulk carrier is received, the molding machine may stop due to the arrival of the semi-finished product. In such a case, a production loss occurs.

On the contrary, LGV is currently carrying the request, but in case of an urgent mind, the worker may go to work by hand and carry it out.

That is, the present problem is that, in the case of a worker who requested a bogie, it is necessary to accurately determine whether to wait for the bogie currently requested or to manually go to the warehouse, and to stop the molding machine from stopping due to lack of material.

However, there is a lot of inconvenience to operate the work in the field because the operator can not give the information that can be judged at present.

A problem to be solved by the present invention is to significantly reduce the material delay in the molding process and to reduce the labor load due to the manual bogie handling by using the expected arrival time notification system of the unmanned vehicle for carrying the semi-finished bogies in the tire factory.

(B) displaying a current work progress status using a semi-finished goods distribution system server and an unmanned vehicle control system; and (c) The present invention provides a method of informing an estimated arrival time of an unmanned vehicle for transporting semi-finished goods by a tire factory, which comprises a step of collecting status information and calculating the time required to move between individual destinations, and finally displaying the information on a monitor.

According to another aspect of the present invention, there is provided a billing system comprising: (a) means for requesting a corresponding semi-finished product in a molding machine; (b) means for displaying a current work progress status using a semi-finished goods distribution system server and an unmanned vehicle control system; and c) a method of collecting the status information and calculating the time required to travel between the individual destinations, and finally displaying the information on the monitor, in a tire factory.

In the tire factory according to the present invention, there is an advantageous effect that the delay of the molding process material is reduced by 10% and the labor load due to the manual bogie manual transportation is reduced when the unmanned vehicle arrival time notification system for semi-finished goods cargo transportation is used.

FIG. 1 is a flowchart of an expected arrival time notification system of an unmanned vehicle for transporting semi-finished goods by a tire factory.
FIG. 2 is a diagram showing an expected arrival time notification system of an unmanned vehicle for transporting semi-finished goods by a tire factory.

Hereinafter, the present invention will be described in detail.

The present invention relates to an unmanned transportation vehicle arrival notice system for carrying semi-finished goods.

More specifically, the method of informing an unmanned vehicle on arrival of a semi-finished goods car according to the present invention comprises the steps of (a) requesting the semi-finished product in a molding machine, (b) using a semi-finished goods distribution system server and an unmanned vehicle control system Displaying the current work progress status; (c) collecting the status information and calculating the time required to move between the individual destinations, and finally displaying the information on the monitor.

The unmanned transport vehicle arrival notice system for carrying the semi-finished goods car according to the present invention comprises: (a) means for requesting a semi-finished product from a molding machine; (b) (C) means for collecting the corresponding status information and computing the time required to move between the individual destinations and finally displaying the information on the monitor.

The present invention is registered in the MHC reservation order when the bidding request button on the molding machine semi-finished product let-off is clicked and the return request signal of the standard is received by the MHC (Material Handling Computer).

If there is no reservation order, the MHC instructs the stacker crane (S / C) to immediately issue the semi-finished product standard to the warehouse. If there is a large number of currently registered reservation orders, the MHC makes a reservation reservation once by the reservation order processing rule . When the warehouse S / C arrives at the corresponding warehouse release order by the reservation order processing rule (Rule), the warehouse of the semi-finished product standard is delivered to the warehouse S / C.

When the delivery is completed and the goods arrive at the delivery C / V (Conveyer), a request is made to the LSC (unmanned vehicle control system) for the corresponding lorry to request the allocation of LGV (semi-finished goods cargo unmanned vehicle).

LGV is assigned and the truck goes to the warehouse C / V waiting for the truck to load, and the truck is transferred to the molding machine, which is the final destination, and the machine is placed on the waiting station of the molding machine.

It requests all such bogies and interworks with MHC and LSC in real time to process all the processing information from the MHC and LSC until completion at the final molding machine stall waiting station. It is a system configured to make decisions.

The present invention is largely divided into four to eight steps.

Step 1: Request semi-finished goods from the molding machine

Step 2: MHC reservation waiting state information

Stage 3: Warehouse Stacker Crane Operation and Completion Information

Step 4: Waiting for LGV (Laser Guide Vehicle) order assignment

Step 5: LGV Allocation Information

Step 6: About LGV Balance Loading

Step 7: LGV cargo information

Step 8: Complete LGV Balance

Information that is progressed at each step is transmitted to the arrival forecast notification system in real time and displayed to the operator.

The above-mentioned steps 4 to 5 may be displayed as one or divided into information related to the LGV.

By looking at this information, the worker can judge which stage the current requested car is at and at what time, so that he can respond flexibly to future work.

In the first step, when the request information is uploaded to the semi-finished product delivery instruction system (ELS), which is the upper level in the PLC (programmable logic controller) of the molding machine, the ELS sends detailed information about the required semi-finished products (requested molding cycle, semi-product name, Length, etc.) to the MHC.

In the second step, it is determined whether the transportation instruction information received from the ELS should be processed immediately by the MHC or by the number of the transportation instruction reservations received first

The third step is the step of processing by the MHC and informing the operation and completion information of the S / C.

Stages 4 to 8 are the steps taken by the LSC, where the bogie to the warehouse is the final destination ST. To display the information on the progress of each step up to the arrival of the image data.

In other words, on the display of the arrival notification system, the operator can monitor the current progress of the transportation of all the semi-finished goods requested by the molding machine in real time to help the operator make the best judgment.

Particularly, in the seventh step, which is the final step, the transportation time and the time information of each destination are inputted into the system and the remaining time is expressed by numerical value.

That is, in the sixth step, the LGV maps the time from the loading of the bogie to the arrival of the destination to the predefined required time information, and the LGV provides the arrival information to the operator a few minutes later.

Hereinafter, an expected arrival time notification system of an unmanned transportation vehicle for carrying semi-finished goods by a tire factory according to the present invention will be described.

The expected arrival time notification system of the unmanned vehicle according to the present invention includes the following constituent means.

And a means for requesting the semi-finished product from the molding machine, and means for displaying the current work progress status using the semi-finished goods distribution system server and the unmanned vehicle control system.

And arrival alert monitoring means for calculating the status information and the time required to travel between the individual destinations and displaying the information on the final monitor.

In another embodiment, when the semi-finished product delivery instruction system for semi-finished goods transportation in semi-finished goods transportation system for the transportation of semi-finished goods in the tire factory inputs the semi-finished product information in the semi-finished product transportation instruction system in the molding machine PLC, the detailed information about the semi- And means for determining whether to wait for the delivery instruction information transmitted from the ELS to be processed directly by the MHC or by the number of the delivery instruction reservations received first.

And means for informing the stacker crane operation and work completion information processed according to the determining means, wherein the bogie delivered to the warehouse is the final destination ST. And means for displaying information on the progress until the arrival at the terminal.

(B) displaying a current work progress status using a semi-finished goods distribution system server and an unmanned vehicle control system; (c) A tire factory including an arrival notification monitoring step that calculates and displays the travel time information of each destination is provided to provide an unmanned vehicle arrival time notification system for semi-finished goods transportation, thereby reducing molding process material delay by 10% And the labor load due to the manual transportation of the worker can be reduced, so that the possibility of industrial use is very high.

Claims (7)

A method for informing an estimated arrival time of an unmanned vehicle for transporting semi-finished goods from a tire factory,
(a) requesting the semi-finished product in a molding machine;
(b) displaying the current work progress status using the semi-finished goods distribution system server and the unmanned vehicle control system; And
(c) an arrival notification monitoring step of collecting the corresponding status information and calculating and displaying the information on the time required to travel between the individual destinations,
When the carrier request signal of the standard is received by the MHC by clicking the truck request button on the molding machine semi-finished product let-off, it is automatically registered in the reservation order of the MHC and processed according to the reservation order processing rule. Method of Notification of Estimated Arrival Time for Unmanned Carriage. delete The method according to claim 1,
A method for informing an estimated arrival time of an unmanned vehicle in order to carry semi-finished goods by truck at a tire factory so that an operator can quickly make a judgment by monitoring the present state of the transportation progress in real time for semi-finished goods demanded by a molding machine. delete delete delete delete

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