JPH04292305A - Free location control method of pallet - Google Patents

Abstract

PURPOSE:To control storage position of cargo pallets at free location. CONSTITUTION:A cargo pallet 9 is provided with an identifying mark 16. A position sensor 1 is mounted in each storage floor region. A conveying machine 5 is provided with a reader 11 of the identifying mark 10 of loading and unloading pallet, a position recognizing device 6 which recognizes position by the position sensor 1, and a height recognizing device b. When the cargo pallet 9 is carried in and out of warehouse and moved by the conveying machine 5, inherent identifying mark of the loading and unloading pallet is read. The position sensor 1 is recognized by the position recognizing device to recognize storage floor region of the cargo pallet 9.

Description

[Detailed description of the invention]

[Object of the invention]

0002

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for managing the free location of pallets, and more particularly to a method for tracking and managing the storage location of cargo handling pallets in a warehouse or the like.

0003

2. Description of the Related Art Conventionally, free location management of cargo handling pallets in each storage floor area in a warehouse or the like has been performed manually. Therefore, there is a demand for automation of pallet stacking and storage, and automated warehouses such as stacker cranes are conventionally known, but with such equipment, free location management is not possible, and location management is required. The degree of freedom is low, the amount of storage per unit volume is small, and it is difficult to deal with the loading and unloading of small quantities of a wide variety of products.
It has problems such as difficulty in introducing it into existing warehouses.

0004

[Problem to be solved by the invention] In the above conventional method,
There is a need for a management method for cargo handling pallets that cannot be managed in free locations and can be easily introduced into existing warehouses.

The present invention was developed in view of the above-mentioned problems, and it is possible to automatically manage the storage position of the cargo-handling pallets while they are stacked and stored, and the degree of freedom is large, making it easy to grasp the storage position of the cargo-handling pallets. This provides a free location management method for pallets that can increase storage capacity per unit volume and can be easily introduced into existing warehouses.

[Configuration of the invention]

[0007]

[Means for Solving the Problems] A free location management method for pallets according to the invention according to claim 1 includes forming a unique identification mark on the cargo handling pallet, installing a position sensor in each storage floor area, and A conveyance machine that conveys the cargo handling pallet is equipped with a reading device for the unique identification mark of the cargo handling pallet and a position recognition device that recognizes the position using the position sensor. In addition to reading the unique identification mark, the position recognition device determines the signal from the position sensor to recognize the storage floor area of this cargo handling pallet, and detects the storage floor area or removal storage floor area of each of the cargo handling pallets and separates the cargo handling pallet. It is to manage the

The pallet free location management method of the invention according to claim 2 is the pallet free location management method according to claim 1, wherein the conveyor is equipped with a cargo handling pallet height recognition device, This detects the stacking height position.

[0009]

[Function] In the pallet free location management method of the invention as set forth in claim 1, at the time of warehousing, the unique identification mark of the cargo handling pallet is read by the unique identification mark reading device of the cargo handling pallet of the transport machine, and the signal of the position sensor is also read. The storage area of the cargo pallet can be recognized by the recognition device, and the storage location of the cargo pallet can be managed by reading the data from the unique identification mark reading device and the recognition device. In addition, when leaving the warehouse, the storage position of the cargo handling pallet can be checked using the transport machine and the cargo handling pallet can be taken out from the storage location.The data unique identification mark reading device reads the unique identification mark of the cargo handling pallet, and the position sensor The signal is recognized by a recognition device, the removal storage floor area of this cargo handling pallet is recognized, and the data of the unique identification mark reader and recognition device is read to confirm the removal of the cargo handling pallet.

Furthermore, in the pallet free location management method of the invention as claimed in claim 2, the stacking height position of the cargo handling pallet can also be easily determined and managed by the height position recognition device of the cargo handling pallet of the transport machine. .

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A method according to an embodiment of the present invention will be explained with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a position sensor, for example, as shown in FIG. 2, each storage floor area A1, A2, A3, .
,B3,...,Bn,C1,C2,C3,
...It is constructed of a power-free magnetic method or an electromagnetic wave method, which is embedded and installed corresponding to each Cn, and the top surface of this position sensor 1 is protected by a cover etc. installed so that it is flush with the floor surface 2. .

Further, reference numeral 5 denotes a conveyor, which is composed of a forklift, for example, and the storage floor areas A1, A2, A3, . . . , An, B1,
B2, B3,..., Bn, C1, C2, C3
, . . . A position recognition device 6 is attached opposite to the position sensor 1 installed at Cn. This position recognition device 6
reads information from the position sensor 1 using a magnetic method or an electromagnetic wave method. This position recognition device 6 is connected to the transport machine 5.
This terminal device 7 has a transmitting/receiving circuit and a display device (not shown), and upon receiving information from the position sensor 1, the position recognition device 6 recognizes the position of the sensor 1, that is, the storage floor area A1. , A2 , A3 , ..., An
, B1 , B2 , B3 , ..., Bn , C1 , C
2, C3, . . . Cn data is transmitted to the terminal 7 and displayed on the display device, and the storage floor area data is transmitted to the main control device (not shown).

Reference numeral 8 denotes a height recognition device which is provided on the conveyor 5 and directly or indirectly detects the height of a lifting device such as a fork. When the terminal device 7 receives information from the height recognition device 8, it displays the height data of the height recognition device 8 on a display device and transmits the height data to a main control device (not shown). do.

Further, as shown in FIGS. 5 and 6, the cargo handling pallet 9 carried out by the transport machine 5 is provided with a unique identification mark 10 such as a number, and this identification mark 10 is, for example, a magnetic It consists of numberless power supply sensors of type or electromagnetic wave type. The carrier 5 is provided with an identification mark reading device 11 that reads the identification mark 10 using a magnetic method or an electromagnetic wave method, and this identification method reading device 11 is connected to the terminal device 7. When information is received from the identification mark reading device 11, the data on the cargo handling pallet 9 is displayed on the display device, and the data on the cargo handling pallet 9 is transmitted to a main control device (not shown).

Next, the operation of this embodiment will be explained.

When handling pallets 9 in a warehouse or the like using a transport machine 5 such as a forklift, the unique identification mark 10 of the pallet 9 transported by the transport machine 5 is read at the time of storage, as shown in FIG. Read by device 11 (step 1). Then, when the cargo handling pallet 9 is released (step 2), the signal from the position sensor 1 is recognized by the position recognition device 6 (step 3), and the storage floor areas A1, A2, A3, ..., An, of the cargo handling pallet 9 are recognized. B1
,B2,B3,...,Bn,C1,C2,
C3,...Cn, and reads data from the reading device 11 of the unique identification mark 10 and the position recognition device 6,
The storage position of the cargo handling pallet 9 is displayed on the terminal device 7. Further, the stacking height position of the cargo handling pallet 9 is also read and recognized by the height position recognition device 8 (Step 4), and the stacking height of the cargo handling pallet 9 is displayed on the terminal device 7. The unique identification mark, storage area, and height of the cargo handling pallet 9 are determined using the terminal device 7 (step). Then, the storage floor area and stacking height position data of the cargo handling pallets 9 are transmitted from this terminal device 7 to the main controller (step 6), and stored in the main controller to determine where each cargo handling pallet 9 is stored. Each cargo handling pallet 9 can be managed by step 1 of determining the load.

Furthermore, when leaving the warehouse, as shown in FIG. 8, the storage position of the cargo handling pallet 9 is transmitted from the main controller to the terminal 7 of the transport machine 5 and displayed on the display of the terminal 7 (step 11). Possibly storage floor areas A1, A2, A3
,..., An , B1 , B2 , B3 ,..., Bn
, C1, C2, C3, . . . Cn, the stacking height can be confirmed (step 11). Then, the storage position of the cargo handling pallet 9 to be delivered can be confirmed, and the cargo handling pallet 9 can be taken out from the storage position by the conveyor 5. Also,
The unique identification mark 10 of the cargo handling pallet 9 is read by the data unique identification mark 10 reader 11 (Step 1
2), the signal from the position sensor 1 is read by the recognition device 6, and the storage floor area from which the cargo handling pallet 9 is removed is recognized;
The data of the reading device 11 of the unique identification mark 10, the position recognition device 6, and the height recognition device 8 are read (steps 13, 14), and the removal of the cargo handling pallet 9 is transmitted from the terminal device 7 to the main control device (step 16). ), you can check the shipment. It is determined which cargo pallet was removed from where (step 17).

Furthermore, when changing the storage location of the cargo handling pallet 9, the flowcharts from the unloading flowchart to the warehousing flowchart are followed.

Note that if the conveyor 5 is not equipped with the height recognition device 8 for the cargo handling pallets 9, the stacking height is recognized by software on the main controller side.

[0021]

According to the invention as set forth in claim 1, at the time of storage, the unique identification mark of the cargo handling pallet is read by the reading device of the cargo handling pallet of the carrier machine, and the signal of the position sensor is read by the recognition device. It is possible to identify and recognize the storage floor area of this cargo handling pallet, read data from the unique identification mark reading device and recognition device, and manage the storage location of the cargo handling pallet. In addition, when leaving the warehouse, the storage position of the cargo handling pallet can be checked using the transport machine and the cargo handling pallet can be taken out from the storage location.The data unique identification mark reading device reads the unique identification mark of the cargo handling pallet, and the position sensor The signal is recognized by a recognition device, the removal storage floor area of this cargo handling pallet is recognized, and the data of the unique identification mark reader and recognition device is read to confirm the removal of the cargo handling pallet. Therefore, the storage location of cargo handling pallets can be automatically managed, the degree of freedom in storage of cargo handling pallets is large, the amount of storage per unit volume can be increased, the storage and removal management of small quantities of a wide variety of products is facilitated, and it can also be used in existing warehouses. It can be easily introduced as free location management. In this way, the location of the cargo handling pallet can be managed, and by separately associating the cargo handling pallet with the stored products, it becomes possible to manage the individual locations of the stored products.

Furthermore, according to the invention set forth in claim 2,
The stacking height position of the cargo handling pallet can also be easily determined using the height position recognition device of the cargo handling pallet on the transporter, allowing conventional stacking and storage of cargo handling pallets and facilitating free location management.

[Brief explanation of drawings]

FIG. 1 is an explanatory side view showing an embodiment of the pallet free location management method of the present invention.

FIG. 2 is a plan view of a portion of the warehouse showing the storage floor area.

FIG. 3 is an explanatory front view of the same as above.

FIG. 4 is an explanatory plan view showing the relationship between the transport machine and the cargo handling pallet.

FIG. 5 is a plan view of the cargo handling pallet.

FIG. 6 is an explanatory front view of the same as above.

FIG. 7 is a flowchart diagram at the time of warehousing the same as above.

FIG. 8 is a flowchart diagram at the time of leaving the warehouse.

[Explanation of symbols]

1 Position sensor 5 Conveyor machine 6 Location recognition device 8 Height recognition device 9 Cargo handling pallet 10. Unique identification mark 11 Identification mark reading device

Claims (2)

[Claims] 1. A unique identification mark is formed on the cargo handling pallet, a position sensor is installed in each storage floor area, and a carrier for transporting the cargo pallet is provided with a reading device for the unique identification mark of the cargo handling pallet and the position sensor. and a position recognition device that recognizes the position by using a reading device to read the unique identification mark of the cargo handling pallet when the cargo handling pallet is stored, taken out, or moved by the carrier, and the position recognition device discriminates the signal from the position sensor. A free location management method for pallets, comprising: recognizing a storage floor area of a cargo handling pallet, and detecting a storage floor area or a removal storage floor area of each of the cargo handling pallets to manage the cargo handling pallet. 2. The pallet free location management method according to claim 1, wherein the conveyance machine is equipped with a cargo handling pallet height recognition device to detect the stacking height position of the cargo handling pallets.