KR101047373B1 - Material control system and the control method thereof - Google Patents

Abstract

PURPOSE: A luggage process control system and a control method of a logistics system are provided to improve the efficiency of unit process and integrated process by implementing route search and work distribution logic. CONSTITUTION: A high position PC or PLC(10) occurs the scheduling about the corresponding task after generating the From/To task for the transfer of the predetermined luggage. A MHC(Material Handling Computer, 20) implements route search and work distribution logic and transfers luggage, conveyer and carriage in order to simultaneously process two commands.

Description

Baggage handling control system in logistics system and its control method {MATERIAL CONTROL SYSTEM AND THE CONTROL METHOD THEREOF}

The present invention relates to a baggage handling control system and a control method thereof in a logistics system, and more particularly, a batch processing of one piece of cargo at a time or two at a time. By doing so, the present invention relates to a cargo handling control system and a control method thereof in a logistics system capable of implementing optimal path search and work distribution logic.

      In general, when the transfer of a predetermined load destination by a variety of baggage transfer facilities in the distribution center, delivery center, factory, etc. is carried out, a buffer of the load occurs when processing a large amount of traffic.

      In other words, the existing work on transporting the cargo is processed in a way that the next work after giving a transfer command for the load on the basis of the time when the load is first detected, the subsequent direction of the load This will allow mutual interference on the path of loading.

Thus, in the above-described load handling in the conventional logistics system, a large amount of avoidance and standby operation time of the transfer equipment such as the load or the conveyor occurs, so that the problem that the transfer efficiency of the load can only be reduced. It became.

Therefore, the present invention has been devised to improve the above-mentioned problems. The present invention provides an optimal path search and job distribution logic by collectively processing two commands at a time when handling a load in a logistics system. The purpose of the present invention is to provide a cargo handling control system and a control method in a logistics system to improve the efficiency of single work and simultaneous work through implementation.

The baggage handling control system in the logistics system according to the present invention for achieving the object as described above, after generating a From / To job for the transfer of a predetermined load, the upper PC or PLC to generate a work command for the job Wow; After receiving a work order and status inquiry from the host PC or PLC, responding, and analyzing the from / to job according to the work command from the host PC or PLC, two work loads are processed at once. It implements an optimal path search and job distribution logic to batch the instructions, including a material handling computer (MHC) to control the lower equipment for conveying goods, such as conveyors and transport carts.

      In addition, the control method of the cargo handling control system in the logistics system according to the present invention, the work command transmission step of generating a From / To job in the upper PC or PLC for the transfer of the predetermined load and transmits the work command accordingly to the MHC side Wow; A job analysis step of performing a response to a work instruction and a status inquiry in the MHC receiving the work command through the work command transmission step, and analyzing a From / To job according to the work command from the host PC or PLC; After the MHC analyzes the work, the work instruction is assigned to assign work instructions and instruct work to the underlying equipment so that the optimal path search and work distribution logic can be implemented to perform a single task or multiple tasks according to the analysis result. Step and; And a work completion step of determining, by the MHC, that the work is completed as the lower equipment completes the transfer work by collectively processing a predetermined load according to the work instruction from the MHC.

More preferably, the single task in the task instruction step is characterized in that logic is implemented based on task allocation to correspond to station verification that cannot arrive, near task prioritization, forward priority balance assignment, and bidirectional task correspondence.

In addition, the plurality of tasks in the work instruction step, the logic is implemented on the basis of the assignment to allow simultaneous work during the loading operation, comparison of the standby position / progress direction, excluding the crossing progress, based on the loading station based near-field assignment, while uploading operation At the time, the logic can be implemented based on the simultaneous task enable command, the comparison of the waiting position / progress direction, the same reference in the cross progress / progress direction, and the task prioritization when the waiting task occurs.

      According to the present invention made as described above, it is possible to implement the optimal path search and job distribution logic by batch processing two instructions at a time when handling the load in the logistics system, the efficiency of single work and simultaneous work Will increase the effect.

      In addition, this will also have the effect of maximizing the transport efficiency of the universal load in the space in which the buffer (buffer) of the load occurs.

1 is a block diagram showing a schematic configuration of a cargo handling control system in a logistics system according to the present invention;
2 is a flowchart illustrating a control process of a load handling control system in a logistics system according to the present invention.

      Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

      1 is a block diagram showing a schematic configuration of a load handling control system in a logistics system according to the present invention. FIG. 2 is a flowchart showing a control process of a load handling control system in a logistics system according to the present invention.

      The baggage handling control system in the logistics system according to the present invention includes an upper PC or PLC 10 generating a predetermined work command, and after receiving the work command, analyzing and implementing path search and work distribution logic for transport. It comprises a MHC (Material Handling Computer) 20 for controlling the lower equipment.

That is, the upper PC or the PLC 10 generates a work command for the corresponding job by generating a From / To job for the transfer of a predetermined load according to an operation of a manager or a program drive, and transmits the job command to the MHC 20 side. .

The MHC 20 receives a work instruction and a status inquiry transmitted from the upper PC or the PLC 10, and responds accordingly, while the MHC 20 responds to a work command from the upper PC or the PLC 10 according to a work command from the upper PC or the PLC 10. By analyzing the To task, the load handling task is configured to implement the optimal path search and task distribution logic to batch two commands at a time.

Accordingly, the HMC 20 controls the transport means such as a conveyor and a transport cart, which are the lower equipment 30, so that a single work and a simultaneous work can be performed based on the path search and work distribution logic according to the analysis result.

Next, the operation of the present invention made as described above with reference to the drawings in detail as follows.

The cargo handling control system in the logistics system according to the present invention is controlled through a process of a work command transmission step 100, a work analysis step 200, a work instruction step 300, and a work completion step 400. Will be done.

      First, in the work command transmission step 100 to generate a From / To job in the upper PC or PLC 10 for the transfer of a predetermined load, and then transmits the work command according to the MHC 20 side, the work In the analysis step 200, the HMC 20 that receives the work command from the host PC or PLC 10 responds to the work order and status inquiry, and responds to the work command from the host PC or PLC 10. Accordingly, the contents of the from / to work of the predetermined load are analyzed.

      In addition, in the work instruction step 300, the MHC 20 performs a work command so that an optimal path search and work distribution logic may be implemented so that a predetermined load may be transferred in a single task or in multiple tasks according to a task analysis result. In addition to assigning the work to the lower equipment (30).

      In this case, the predetermined load is transferred to a single job or a plurality of jobs, the logic that is based on the job distribution to correspond to the station verification, short-range job prioritization, advance direction priority balance assignment, bidirectional work correspondence that can not arrive in the case of the single job Will be implemented.

      In addition, in the case of the multi-task, the logic is implemented based on the assignment, standby position / progress direction comparison, cross progress except, loading station based near-field assignment so as to enable simultaneous work during the loading operation, simultaneous work during uploading work The logic is implemented based on the possible commands, the standby position / going direction comparison, the same cross crossing / going direction, and the task prioritization in case of waiting work.

Finally, in the work completion step 400, as the lower equipment 30 completes the transfer work by collectively processing a predetermined load according to the work instruction from the MHC 20, the MHC 20 completes the work. As a result, a series of baggage handling control processes through the baggage treatment control system in the logistics system are terminated.

      Here, a description will be given of a method of controlling a baggage treatment through a baggage treatment control system in the logistics system as described above.

      In case of single command,

      # 1. From. Station. Or, if the To. Command is issued, select the equipment A or the nearest conveyor (if the first station is # 1).

      2. From #n Station. Or To. Command, select Equipment B or the nearest conveyor (if the last station is #n).

      3. Assign your nearest unit from From Station.

      4. If F1 <T1 (forward-station incrementing-progress), prioritize Equipment B or the nearest conveyor (when initial assignment).

        Prioritize Equipment B or the nearest conveyor to minimize movement of Equipment A or the nearest conveyor and respond to opposite loads.If To Station is smaller than Equipment B or the nearest conveyor location, provide the equipment A or the nearest conveyor. Work order.

        Since it is a forward process, work on the Machine B or the nearest conveyor first, and move the Machine A when the number is greater than F1.

        (If it is continuous one-way operation and the operation takes place only at one station, equipment B or the nearest conveyor can be kept waiting after the operation is completed, and continuous operation can take place only at equipment A or the nearest conveyor)

      5. Equipment A -F1 = | S1 |, Equipment B-F2 = | S2 |, | S1 |-| S2 | ≥ 0 selects Device B, no device A moves.

        (Equipment A is farther from F1 than equipment B. Only equipment A is located at a station smaller than F1, so equipment A does not move and commands equipment B.)

      6. Equipment A -F1 = | S1 |, Equipment B-F2 = | S2 |, | S1 |-| S2 | If <0, equipment A is selected. If equipment B> T1, equipment B is not moved.

        If equipment B ≤T1, move equipment B by T1 + 1 and load equipment A.

        If the position of equipment A is checked and it is smaller than F1, equipment A is not operated and commanded to equipment B.

        If the position of equipment B is smaller than T1, the equipment A operation command after the movement command to equipment B.

      7. If F1> T1 (reverse-station decreasing side), prioritize equipment A or the nearest conveyor unit (initial assignment).

        Prioritize equipment A or the nearest conveyor to minimize movement of equipment B or the nearest conveyor and respond to opposite loads. Work with equipment B or the nearest conveyor if To Station is larger than equipment A or the nearest conveyor location. Instruct.

        Since it is a reverse direction, the machine A or the nearest conveyor should be worked first, and the machine B or the nearest conveyor can be moved when the number is smaller than F1.

        (If it is continuous one-way operation and operation occurs only at one station, the equipment A or the nearest conveyor unit may wait for the completion of the operation, and only the equipment B or the nearest conveyor may continue working.)

      8. Equipment A -F1 = | S1 |, Equipment B-F2 = | S2 |, | S1 |-| S2 | If ≤ 0, select equipment A, no equipment B movement

        (Equipment B is farther from F1 than equipment A. Only equipment B is located at a station larger than F1, so equipment A commands without moving equipment B.)

      9. Equipment A -F1 = | S1 |, Equipment B-F2 = | S2 |, | S1 |-| S2 | > 0 selects equipment B; if equipment A <T1, there is no movement of equipment A; if equipment A≥T1, move equipment A by T1-1 and load equipment B.

        If the position of equipment A is checked and it is smaller than T1, equipment A is not operated and commanded to equipment B.

        If the equipment A position is bigger than T1, the equipment B operation command after the movement instruction to equipment A.

      10. When F1 = T1

        Mark job completed.

        No action.

On the other hand, even if the modified embodiments different from the contents described in the present invention should not be individually understood from the technical spirit or prospects of the present invention, of course, it will fall within the claims attached to the present invention.

10: upper PC or PLC,
20: material handling computer (MHC),
30: Undercarriage.

Claims (4)

A higher level PC or PLC generating a From / To job for transferring a predetermined load and generating a job command for the corresponding job;
After receiving a work order and status inquiry from the host PC or PLC, responding, and analyzing the from / to job according to the work command from the host PC or PLC, two work loads are processed at once. In the logistics system, it comprises an MHC (Material Handling Computer) that controls the sub-equipment for conveying goods, such as conveyors and transfer trucks, by implementing the optimal path search and job distribution logic to batch the command; Baggage control system. A work command transmission step of generating a From / To job from a higher level PC or a PLC for transferring a predetermined load, and transmitting a work command accordingly to the MHC side;
A job analysis step of performing a response to a work instruction and a status inquiry in the MHC receiving the work command through the work command transmission step, and analyzing a From / To job according to the work command from the host PC or PLC;
After the MHC analyzes the work, the work instruction is assigned to assign work instructions and instruct work to the underlying equipment so that the optimal path search and work distribution logic can be implemented to perform a single task or multiple tasks according to the analysis result. Step and;
And a work completion step of determining, by the MHC, that the work is completed as the lower equipment completes the transfer work by collectively processing a predetermined load according to the work instruction from the MHC. Control method of cargo handling control system. The method of claim 2,
The single operation in the work instruction step,
A method of controlling a load handling control system in a logistics system, characterized in that logic is implemented based on task allocation to ensure unsuccessful station verification, short-range task prioritization, forward direction priority balance assignment, and bi-directional task correspondence. The method of claim 2,
The plurality of operations in the work instruction step,
During the loading operation, logic is implemented based on assignment, standby position / progression comparison, cross progress exclusion, loading station based near-field assignment to enable simultaneous work,
In the case of uploading work, the logic can be implemented based on the simultaneous operation possible command, the comparison of the waiting position / progress direction, the same as the cross progress / progress direction, and if the waiting work occurs, the work time is based on the small task priority assignment. Control method of cargo handling control system.

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