Pallet transportation system feeding analysis model control method based on rolling rhythm

Abstract

The invention relates to the technical field of steel coil transportation. The invention discloses a tray transportation system feeding analysis model control method based on rolling rhythm. The method comprises the following steps: defining small cycle opportunity points; retrieving online rolling plan data; analyzing roller changing time, rolling rhythm and the like according to the rolling plan data; a rolling plan analysis result is matched with defined small cycle opportunity points, all feeding opportunity points of the current rolling plan are recognized according to logic defined by the small cycle opportunity points, opportunity recognition, starting time and closing time of the feeding opportunity points are pre-analyzed, and feeding opportunity time and feeding amount are recognized; displaying the pre-analysis result in an L3 system picture; the pre-analysis result is sent to the unmanned driving system in a telegraph text communication mode; and the unmanned travelling crane is used for loading, transporting and feeding. According to the method, the cross logistics feeding opportunity points can be pre-analyzed, the feeding opportunity points are recognized in advance, the utilization rate and the transportation volume of tailgating transportation are improved, and the lightering volume of trucks is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of steel coil transportation, and particularly relates to a control method for a feeding analysis model of a pallet transportation system based on rolling rhythm. Background Art

[0002] The transportation chains of the 2250mm hot rolling production line and the 1780mm hot rolling production line in the hot rolling plant of Baosteel Zhanjiang Iron and Steel are designed with a through connection. The steel coils produced by the two lines can be cross-transported to the next process through the interconnected transportation chains. In terms of process design, the transportation chain of the 2250 hot rolling is connected to the transportation chains of the raw material warehouses of the 2030 cold rolling and the 1750 cold rolling. The transportation chain of the 1780 hot rolling is connected to the transportation chains of the 1550 cold rolling and the 1550 pickling. The raw material coils for the 2030 cold rolling and the 1750 cold rolling produced by the 1780 hot rolling need to be transported through the transportation chain of the 2250 hot rolling, while the raw material coils for the 1550 cold rolling and the 1550 pickling produced by the 2250 hot rolling need to be transported through the transportation chain of the 1780 hot rolling.

[0003] When the transportation chains of the two hot rolling production lines are connected to the transportation chains of the four raw material warehouses in the cold rolling process, the comprehensive barge transportation rate of the two hot rolling production lines is only 60%, which greatly restricts the turnover efficiency of the raw material coils supplied from hot rolling to cold rolling, resulting in problems such as increased inventory and wasted logistics costs. The comprehensive barge transportation capacity of the transportation chain is poor, affecting the output delivery of the entire process. Summary of the Invention

[0004] The purpose of the present invention is to provide a control method for a feeding analysis model of a pallet transportation system based on rolling rhythm, which combines the online rolling plan, rolling rhythm, roll change gap, and logistics direction to pre-analyze the opportunity points for cross-logistics feeding, identify the feeding opportunity points in advance, improve the utilization rate and transportation volume of borrowed transportation, and reduce the truck barge transportation volume.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: A control method for a feeding analysis model of a pallet transportation system based on rolling rhythm, comprising the following steps: Step 1: Define the small cycle opportunity points; Step 2: Retrieve the online rolling plan data; Step 3: Analyze the roll change time, rolling rhythm, etc. according to the rolling plan data; Step 4: Match the analysis results of the rolling plan with the defined small cycle opportunity points, identify each feeding opportunity point of the current rolling plan according to the logic defined by the small cycle opportunity points, and pre-analyze the opportunity identification, opening time, and closing time of the feeding opportunity points to identify the feeding opportunity time and feeding volume; Step 5: Display the pre-analysis results on the L3 system screen; Step 6: Send the pre-analysis results to the unmanned rolling system in the form of telecommunication messages; Step 7: The unmanned rolling system performs loading and transportation feeding.

[0006] Furthermore, in Step 1 mentioned above, there are three defined small cycle opportunity points, which are specifically as follows: 1.1 First-state small cycle opportunity point Online rolling plan: The continuous number of strip steels rolled in the D2 / D9 direction is greater than 20 coils; Online equipment status: There are more than 18 empty pallets in the coiling section, and there are empty pallets from the position near TT1 to the cold rolling direction; When it is determined that the current pallet transportation system meets the above conditions, then when the continuous rolling reaches 18 coils, the C-span small cycle opportunity point is prepared to be opened. After continuous rolling of 2 coils of strip steel, the C-span small cycle opportunity point is automatically opened. After the pallet arrives, the traveling crane automatically generates a small cycle instruction. If after the D2 / D9 direction rolling plan ends and it is changed to the D1 / D3 / A1 / A5 direction rolling plan, then the C-span small cycle opportunity point is closed after the continuous rolling of the last 5 coils of strip steel; 1.2 Second-state small cycle opportunity point Online rolling plan: The continuous number of strip steels rolled in the A6 direction is greater than 20 coils; Online equipment status: There are empty pallets from the position near TT1 to the cold rolling direction; When it is determined that the current pallet transportation system meets the above conditions, then when the continuous rolling reaches 18 coils, the C-span small cycle opportunity point is prepared to be opened. After continuous rolling of 2 coils of strip steel, the C-span small cycle opportunity point is automatically opened. After the pallet arrives, the traveling crane automatically generates a small cycle instruction. If after the A6 direction rolling plan ends and it is changed to the D1 / D3 / A1 / A5 direction rolling plan, then the C-span small cycle opportunity point is closed after the continuous rolling of the last 5 coils of strip steel; 1.3 Third-state small cycle opportunity point Online rolling plan: The continuous number of strip steels rolled in the A1 / D1 / D3 / A5 direction is greater than 15 coils; When it is determined that the current pallet transportation system meets the above conditions, then when the continuous rolling reaches 13 coils, the A-span small cycle opportunity point is prepared to be opened. After continuous rolling of 2 coils of strip steel, the A-span small cycle opportunity point is automatically opened. After the pallet arrives, the traveling crane automatically generates a small cycle instruction. If after the A1 / D1 / D3 / A5 direction rolling plan ends and it is changed to the D1 / D3 / A1 / A5 direction rolling plan, then the A-span small cycle opportunity point is closed after the continuous rolling of the last 5 coils of strip steel.

[0007] Furthermore, if the small cycle opportunity point that is planned to be closed is not closed, then the small cycle opportunity point is manually closed according to the pallet usage situation.

[0008] Furthermore, the manual closing function of the small cycle opportunity point is implemented on the WMS system.

[0009] Furthermore, in the second step, the online rolling data is implemented on the L3 system.

[0010] Advantages of the present invention: 1. This method pre-analyzes the online rolling plan, identifies the opportunity points of the transportation chain, and sends the pre-analysis results to the unmanned traveling crane system to realize the feeding linkage of the unmanned traveling crane. The whole process requires no manual intervention, avoiding the problem of inaccurate manual operation judgment and realizing a highly automated control process.

[0011] 2. This method combines the online rolling plan, rolling rhythm, roll changing gap and logistics direction to pre-analyze the opportunity points of cross-logistics feeding, identifies the feeding opportunity points in advance, improves the utilization rate and transportation volume of borrowed road transportation, reduces the truck barge volume, and has strong practicability and high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the integrated design of the two-line transportation chain.

[0013] Figure 2 is a schematic diagram of the feeding model screen of the pallet transportation system. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0015] As Figure 1 and Figure 2 shown, the control method of the feeding analysis model of the pallet transportation system based on the rolling rhythm includes the following steps: Step 1: Define different small cycle opportunity points in a digital manner in combination with the arrangement of the rolling plan, and program this definition logic to be implemented on the L3 system. There are three definitions of the small cycle opportunity points, which are specifically as follows: 1.1. The first state small cycle opportunity point Online rolling plan: The continuous strip steel for rolling in the D2 / D9 direction is more than 20 coils; Online equipment status: There are more than 18 empty pallets in the coiling section, and there are empty pallets from the position near TT1 to the cold rolling direction; If it is determined that the current pallet transportation system meets the above conditions, then when continuous rolling reaches 18 coils, prepare to activate the small circulation opportunity point in Bay C. After continuous rolling of 2 coils of strip steel, automatically activate the small circulation opportunity point in Bay C. After the pallet arrives, the crane automatically generates a small circulation instruction. If the rolling plan for the D2 / D9 destinations ends and is changed to the rolling plan for the D1 / D3 / A1 / A5 destinations, then close the small circulation opportunity point in Bay C after continuous rolling of the last 5 coils of strip steel; 1.2. Small circulation opportunity point in the second state Online rolling plan: The strip steel rolled for the A6 destination is continuously greater than 20 coils; Online equipment status: There is an empty pallet from the position near TT1 to the cold rolling direction; If it is determined that the current pallet transportation system meets the above conditions, then when continuous rolling reaches 18 coils, prepare to activate the small circulation opportunity point in Bay C. After continuous rolling of 2 coils of strip steel, automatically activate the small circulation opportunity point in Bay C. After the pallet arrives, the crane automatically generates a small circulation instruction. If the rolling plan for the A6 destination ends and is changed to the rolling plan for the D1 / D3 / A1 / A5 destinations, then close the small circulation opportunity point in Bay C after continuous rolling of the last 5 coils of strip steel; 1.3. Small circulation opportunity point in the third state Online rolling plan: The strip steel rolled for the A1 / D1 / D3 / A5 destinations is continuously greater than 15 coils; If it is determined that the current pallet transportation system meets the above conditions, then when continuous rolling reaches 13 coils, prepare to activate the small circulation opportunity point in Bay A. After continuous rolling of 2 coils of strip steel, automatically activate the small circulation opportunity point in Bay A. After the pallet arrives, the crane automatically generates a small circulation instruction. If the rolling plan for the A1 / D1 / D3 / A5 destinations ends and is changed to the rolling plan for the D1 / D3 / A1 / A5 destinations, then close the small circulation opportunity point in Bay A after continuous rolling of the last 5 coils of strip steel; Step two: Retrieve the online rolling plan data; Step three: Analyze the roll change time, rolling rhythm, etc. based on the rolling plan data; Step four: Match the analysis results of the rolling plan with the defined small circulation opportunity points, identify each feeding opportunity point of the current rolling plan according to the logic defined by the small circulation opportunity points, and pre-analyze the opportunity identification, opening time, and closing time of the feeding opportunity points to identify the feeding opportunity time and feeding quantity; Step five: Display the pre-analysis results on the L3 system screen; Step six: Send the pre-analysis results to the unmanned crane system in the form of telecommunication messages; Step seven: The unmanned crane loads and transports the materials for feeding.

[0016] In this embodiment, if the small cycle opportunity point that is planned to be closed is not closed, the small cycle opportunity point is manually closed according to the pallet usage situation.

[0017] In this embodiment, the manual closing function of the small cycle opportunity point is implemented on the WMS system. It should be noted that the WMS system will record the pallet usage data, eliminating the need for on-site confirmation of the pallet usage situation and avoiding inaccurate judgment problems.

[0018] In this embodiment, in the second step, the online rolling data is implemented on the L3 system.

Claims

1. Control method for the loading analysis model of a pallet transportation system based on rolling rhythm, characterized in that: It includes the following steps: Step 1: Define the small cycle opportunity points; Step 2: Retrieve the online rolling plan data; Step 3: Analyze the roll change time, rolling rhythm, etc. according to the rolling plan data; Step 4: Match the analysis results of the rolling plan with the defined small cycle opportunity points, identify each feeding opportunity point of the current rolling plan according to the logic defined by the small cycle opportunity points, and pre-analyze the opportunity identification, opening time, and closing time of the feeding opportunity points to identify the feeding opportunity time and feeding volume; Step 5: Display the pre-analysis results on the L3 system screen; Step 6: Send the pre-analysis results to the unmanned crane system in the form of telegram communication; Step 7: The unmanned crane loads and transports the materials.

2. The control method of the loading analysis model of the pallet transportation system based on the rolling rhythm according to claim 1, wherein: In the above Step 1, there are three defined small cycle opportunity points, which are specifically as follows: 1.

1. The first-state small cycle opportunity point Online rolling plan: The continuous strip steel for rolling in the D2 / D9 direction is more than 20 coils; Online equipment status: There are more than 18 empty pallets in the coiling section, and there are empty pallets from the position near TT1 to the cold rolling direction; If it is determined that the current pallet transportation system meets the above conditions at the same time, then when continuous rolling reaches 18 coils, prepare to open the small cycle opportunity point in Bay C. After continuous rolling 2 coils of strip steel, automatically open the small cycle opportunity point in Bay C. After the pallet arrives, the crane automatically generates a small cycle instruction. If the rolling plan in the D2 / D9 direction ends and is changed to the rolling plan in the D1 / D3 / A1 / A5 direction, then the small cycle opportunity point in Bay C is closed after continuous rolling the last 5 coils of strip steel; 1.

2. The second-state small cycle opportunity point Online rolling plan: The continuous strip steel for rolling in the A6 direction is more than 20 coils; Online equipment status: There are empty pallets from the position near TT1 to the cold rolling direction; If it is determined that the current pallet transportation system meets the above conditions at the same time, then when continuous rolling reaches 18 coils, prepare to open the small cycle opportunity point in Bay C. After continuous rolling 2 coils of strip steel, automatically open the small cycle opportunity point in Bay C. After the pallet arrives, the crane automatically generates a small cycle instruction. If the rolling plan in the A6 direction ends and is changed to the rolling plan in the D1 / D3 / A1 / A5 direction, then the small cycle opportunity point in Bay C is closed after continuous rolling the last 5 coils of strip steel; 1.

3. The third-state small cycle opportunity point Online rolling plan: The continuous strip steel for rolling in the A1 / D1 / D3 / A5 direction is more than 15 coils; If it is determined that the current pallet transportation system meets the above conditions, then when continuous rolling reaches 13 coils, prepare to open the small cycle opportunity point in Bay A. After continuous rolling 2 coils of strip steel, automatically open the small cycle opportunity point in Bay A. After the pallet arrives, the crane automatically generates a small cycle instruction. If the rolling plan in the A1 / D1 / D3 / A5 direction ends and is changed to the rolling plan in the D1 / D3 / A1 / A5 direction, then the small cycle opportunity point in Bay A is closed after continuous rolling the last 5 coils of strip steel.

3. The control method of the loading analysis model of the pallet transportation system based on rolling rhythm according to claim 2, wherein: If the small cycle opportunity point that is planned to be closed is not closed, then manually close the small cycle opportunity point according to the pallet usage situation.

4. The control method of the loading analysis model of the pallet transportation system based on the rolling rhythm according to claim 3, wherein: The manual closing function of the small cycle opportunity point is implemented on the WMS system.

5. The control method of the loading analysis model of the pallet transportation system based on the rolling rhythm according to claim 1, characterized in that: In the above Step 2, the online rolling data is implemented on the L3 system.

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