JPH07187338A - Automatic warehouse control system - Google Patents

Abstract

PURPOSE:To always keep consistency between stock data and an actual cargo, and beforehand prevent trouble at warehousing-delivery processing time or stock makeshift time. CONSTITUTION:In an automatic warehouse control system to perform operation control of a warehousing delivery crane 1 and warehousing-delivery control by a computer 10, in ordinary warehousing-delivery operation, stock information on a shelf is stored in the computer 10 as stock data. At the same time, abnormality-caused time data is stored in the computer 10, and the existence of an actual stock of the shelf is confirmed by the warehousing-delivery crane 1 according to the abnormality-caused time data stord and after warehousing- delivery operation is finished, and the existence of the actual stock and the stored stock data are compared with each other, and when these do not coincide with each other, the stock data is corrected to actual stock information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to control of a loading and unloading crane and management of loading and unloading in an automatic warehouse equipped with a shelf and a loading and unloading crane, and storing and unloading luggage from the target shelf by the loading and unloading crane. The present invention relates to a control system for an automated warehouse that uses a computer.

[0002]

2. Description of the Related Art A loading / unloading crane equipped with traveling / elevating / loading forks and shelves installed on both sides of a traveling passage for driving the loading / unloading crane to operate the lifting / unloading fork. 2. Description of the Related Art There are known automatic warehouses that take out luggage from a target shelf and leave it, or store luggage at the target shelf and store it.

As such a control system for an automatic warehouse, a computer control system is known in which a computer controls the loading and unloading operations of a loading and unloading crane and the loading and unloading management such as checking the presence or absence of luggage on a shelf.

[0004] When an abnormality occurs while the loading / unloading claim automatically operated by the computer control system is operating based on the loading / unloading command, the following is performed.

That is, if an abnormality (for example, a load collapse) occurs during execution of the loading / unloading operation, the loading / unloading crane is stopped for safety. To recover from an abnormality in this case, the loading / unloading crane is disconnected from the computer and the manual mode is set to deal with the abnormality of the luggage. Depending on the processing of the package, [Delete command] or [Forced completion] is performed on the computer to match the actual package on the shelf with the information on the computer. There will be a difference with the actual luggage on the shelf. In order to check this later, the command in which the abnormality has occurred is recorded, the corresponding shelf is visually checked, and the computer is compared and checked by a shelf state search by a computer.

[0006]

Since the above-mentioned conventional abnormality processing method is premised on being performed correctly, there is a lack of consideration for checking whether the abnormality has been correctly treated and correcting the error. For example, when the loading / unloading crane senses a load collapse during execution of the loading / unloading operation and makes an emergency stop, the operation control of the loading / unloading crane is switched to the manual mode, the load collapse is corrected, and the cargo is stored in a predetermined shelf. After that, the error during the loading and unloading operation on the computer is recovered, but in the above example, if you execute [command cancellation] where you should [compulsory completion], the presence or absence of luggage on the shelf, that is, the inventory data is not updated. Become. In such a state, if a command to store another package is issued, the same shelf where the package was stored last time is allocated by the computer, and when the loading / unloading crane executes the loading / unloading operation based on the command,
A double storage error will occur when storing a package on a shelf that already has a package, and the error will cause a further error, which will significantly reduce the operation rate of the loading / unloading crane.

Therefore, in order to solve the above-mentioned problems, the present invention always maintains the consistency between the inventory data and the actual parcel, and prevents troubles during the loading / unloading process or the inventory inquiry in advance. The purpose is to provide a control system of.

[0008]

In order to achieve the above object, the present invention is a computer system having an operation record function of a loading / unloading crane in a control system of an automatic warehouse in which a loading / unloading crane is controlled and a loading / unloading management is performed by a computer. And, with the loading and unloading crane that has the means to communicate the inventory information of the shelf instructed by the computer's instruction to the computer, it is possible to identify the shelf in which an abnormality has occurred and to automatically check the presence or absence of the inventory on that shelf. The warehouse control system.

[0009]

[Operation] According to the configuration of the present invention described above, at the time when the loading / unloading work of the automated warehouse is completed or at the loading / unloading end, automatically from the time when the previous check is completed to the latest time, By confirming the corrective action when an abnormality occurs and correcting it correctly, it is possible to prevent trouble during the next work.

[0010]

EXAMPLES Next, an example of an automatic warehouse control system according to the present invention will be described with reference to the drawings. FIG. 1 shows the configuration of an automated warehouse and a storage / receipt management computer.
Is a loading / unloading crane equipped with a traveling / elevating and unloading fork 2, and shelves 4 are installed on both sides of a traveling passage 3 of the loading / unloading fork. The automatic warehouse is configured so that it can be stored in a shelf or placed in and out of the loading / unloading station 5.

The ground operation panel 6 of the loading / unloading crane 1 for manually controlling the loading / unloading crane 1 and the computer system 7 are connected by a communication line 8, and the computer system is set by the online mode setting of the ground operating panel 6. Reference numeral 7 controls the entry / exit control and entry / exit management of the entry / exit crane 1. The computer system 7 includes a display 9, a computer 10, a keyboard 11, a printer 12 and the like.

For normal automatic loading / unloading operations, instructions from the computer system 7 are input from the ground operation panel 6 to the loading / unloading crane 1.
The data such as the goods name, the goods receipt date, the quantity, etc. stored in the shelf 4 are sent to the computer 10 of the computer system 7 from the warehousing / unloading crane 1 via the ground operation panel 6 and the warehousing data and warehousing data are stored. It is stored as data. In addition, when an error occurs during the receiving operation, the same measures as before are taken, and at that time, the loading / unloading crane number, loading / unloading station number, target shelf number, product name code, product name, storage date, quantity, etc. It is stored in the computer 10 as data.

Next, the operation of checking and correcting whether or not the abnormal action has been correctly performed will be described. When the operator finishes the automatic loading / unloading operation, the keyboard 1
Select and execute the abnormality check function from 1. The computer 10 sequentially refers to the abnormality occurrence data stored up to that point, and sends a load confirmation command for the target shelf to the loading / unloading crane 1 via the ground control panel 6. The loading / unloading crane 1 moves to the relevant shelf, and the presence / absence of loading of the ordered shelf 4 is checked by the ground operation panel 6
To the computer 10 via.

The presence / absence information on the computer 10 and the presence / absence information from the loading / unloading crane 1 are compared. If the loading information on the computer 10 indicates that the loading / unloading information from the loading / unloading crane 1 is ant, An issue command is sent to the issue crane 1, the parcel is carried out to the issue station 5, and the display device 9 displays the issue instruction data when an abnormality occurs on the abnormality check processing screen 13 shown in FIG.

Abnormality check processing screen 1 of the display device 9
As shown in FIG. 2, the reference numeral 3 indicates the loading / unloading crane unit number item 13- that displays the data that was being executed when the abnormality occurred.
1, entry / exit station number item 13-2, target shelf number item 13-3, product name code item 13-4, product name item 13
-5, warehousing date item 13-6, quantity item 13-7, and guided dance 13-8 to be selected according to the above state,
A delete key 13-9 and a registration key 13-10, which display keys to be selected and executed according to the above-mentioned state, are displayed. The above guidance 13-8 is not registered in the computer. After confirming the physical item [registration], the actual load does not exist. Erase the data with "Delete". Check processing is complete. Etc.

The operator confirms the contents displayed as baggage while looking at the abnormality check processing screen 13 and inputs the registration key from the keyboard 11 so that the computer 10 instructs the loading / unloading crane 1 to enter the relevant shelf. The inventory data is registered with the completion information from the loading / unloading crane 1.

Further, the presence / absence information on the computer 10 is compared with the presence / absence information from the loading / unloading crane 1, and if the loading ant on the computer 10 does not have the loading information from the loading / unloading crane 1, By displaying the abnormality check processing screen on the display device 9, the operator deletes the inventory data by operating the delete key of the keyboard 11.

FIG. 3 is a flow chart showing the flow of the processing, and illustrates the case where the abnormality check mode is selected, but it is also possible to automatically set this mode at the end of the loading / unloading business. Further, in the above-mentioned embodiment, the computer system 7 is described as a separate type, but the same applies when the above system is incorporated in the ground control panel 6.

[0019]

[Effects of the Invention] At the time when the loading / unloading work of the automatic warehouse has finished, or at the end of loading / unloading, the action to be taken when an abnormality occurs is automatically confirmed within the range from the time when the previous check was completed to the latest time. By being able to correct it correctly, it is possible to prevent troubles during the next work. Therefore, the operating rate of the loading / unloading crane can be improved, and correct information can be provided even when inquiring about inventory.

[Brief description of drawings]

FIG. 1 is a configuration explanatory view showing an automatic warehouse and a control system.

FIG. 2 is an explanatory diagram of an abnormality check processing screen.

FIG. 3 is a flowchart of control operation.

[Explanation of symbols]

1 ... loading / unloading crane, 4 ... shelf, 6 ... ground control panel, 7 ... computer system, 10 ... computer.

Claims (2)

[Claims] 1. An automatic warehouse control system in which the computer 10 controls the operation of the loading / unloading crane 1 and management of loading / unloading is provided with a function capable of selectively executing an abnormality check mode, and processing when an abnormality occurs during loading / unloading operation. The automatic warehouse is characterized by checking whether or not it was carried out correctly, and if it is wrong, it has a function that can be easily corrected so that the inventory management data of the computer and the luggage on the shelf can be easily matched. Control system. 2. In an automatic warehouse control system in which the computer 10 controls the operation of the loading / unloading crane 1 and the management of loading / unloading, the stock information of the shelves is stored in the computer 10 as inventory data during a normal loading / unloading operation. The data at the time of occurrence of an abnormality is stored in the computer 10, and after the loading / unloading operation is completed, the presence / absence of loading of the shelf is confirmed by the loading / unloading crane 1 based on the stored data at the time of occurrence of the abnormality, and the actual loading / unloading is performed. An automatic warehouse control system that compares the presence and absence of stored inventory data and corrects the inventory data when there is a discrepancy.