JP2002179222A - Instruction system and method for shipping cargo in distribution warehouse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an instruction system for shipping cargo efficiently utilizing plural elevators for shortening stand-by time for shipping as short as possible. SOLUTION: A work instruction data generation device 2 calculates the number of shipping pallets for each warehouse floor with using shipping request data 21a and article arrangement data 21c, and calculates a shipping pallet allowable range for elevator of each warehouse floor with using shipping pallet number data 21d and elevator capacity data 21b, and calculates total occupation time of each elevator for each combination pattern with combining various numbers from assigned number width value of the shipping pallet allowable range, and calculates evaluation index value for each combination pattern with using total occupation time of each elevator, and selects an adoption pattern leveling total occupation time of each elevator with comprising the evaluation index value, and outputs a shipping instruction to a data output device 3 based on adoption pattern data 21f.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loading / unloading instruction system and a loading / unloading instruction method in a warehouse operation for performing a work in accordance with an outgoing request in a distribution warehouse or the like.

[0002]

2. Description of the Related Art Various automatic warehouse systems for inventory management of material parts and products in factories are known.

[0003] Conventional automatic warehouse systems include equipment such as cranes, transporters, elevators, and the like, and many of them are controlled automatically or semi-automatically, and therefore are necessarily expensive. . In addition, this type of system often cannot flexibly respond to equipment change in a factory.

[0004] For these reasons, picking work by hand has become mainstream in recent years, and many factories and factories have performed outgoing work such as transporting luggage to an elevator and carrying the load on a handling floor. Has been implemented in the warehouse.

[0005]

However, when carrying out unloading work on a plurality of transport paths (elevators), picking pallets may be intensively transported to one elevator, and the pallets may be transported before the elevator. The waiting of the pallet for lifting and lowering occurs, which lowers the work efficiency of the worker.

The present invention has been proposed to solve such a problem, and an object of the present invention is to provide a loading / unloading instruction system in which a plurality of elevators are used efficiently so as to minimize waiting time for exiting from a warehouse. Is to provide.

[0007]

In order to solve the above-mentioned problems, a loading / unloading instruction system according to the first aspect operates in a distribution warehouse that performs a loading operation using a plurality of elevators, and has a data input device. This is a system including a work instruction data creating device and a data output device, and has the following features.

[0008] The work instruction data creation device stores the delivery request data, which is input from the data input device and stores the shipment destination of the cargo in correspondence with the product number, and stores the warehouse floor where the cargo is arranged in correspondence with the product number. Using the item placement data, calculate the number of pallets to be issued for each warehouse floor, and use the data on the number of pallets to be issued for each warehouse floor and the data from the data input device and use the lifting / lowering function force data including the average occupancy time of each elevator. Then, the allowable range of the number of outgoing pallets for the elevators for each warehouse floor is calculated by a predetermined calculation method, and various combinations of numerical values are assigned from the assigned number width values of the allowable number of outgoing pallets to create combination pattern data. For each combination pattern, the total occupancy time of each elevator is calculated, and the total occupancy time of each elevator calculated for each combination is used to specify The evaluation index value for each combination pattern is calculated by the value calculation method, and the evaluation index values are compared from the combination patterns to select an adoption pattern in which the total occupation time of each elevator is equalized, and the adoption pattern is selected. An exit instruction is output to the data output device based on the pattern data.

The evaluation index value is obtained, for example, by multiplying a variation value, which is a difference between the maximum value and the minimum value of the total occupation time scheduled for each elevator, by the average value of the total occupation time. Then, the evaluation index values of all the combination patterns are compared, and the combination pattern of the minimum evaluation index value can be adopted as the leveling pattern.

According to the system of the present invention, a pattern in which the total occupied time of each elevator is leveled is adopted, and a retrieval instruction is output according to the pattern, so that an efficient retrieval operation can be realized.

According to the present invention, when a route reservation is made for a specific pallet, a delivery instruction is issued in consideration of the route reservation. When calculating the number of outgoing pallets for each warehouse floor, assign the route reserved pallets to the designated elevators preferentially, create combination patterns only for outgoing requests other than route reservation, and generate combination pattern data In addition, it is possible to output a leaving instruction in consideration of the route reservation.

Since a leaving instruction can be output in consideration of a scheduled route reservation, a more accurate leaving plan can be made.

According to a third aspect of the present invention, when the use priority order of the elevator is specified in advance, the use priority order is printed and an exit instruction is output. If the adoption ratio of each elevator is determined from the use priority and the evaluation index value is calculated in consideration of this ratio in the calculated total occupation time, the dispatch instruction is output in consideration of the designation of the use priority. be able to.

According to a fourth aspect of the present invention, when the number of outgoing requests on the warehouse floor is larger than the other warehouse floors by a predetermined value or more, the outgoing instructing is performed so that a specific elevator is allocated to the warehouse floor having the outstanding outgoing request number. Is performed. That is, when the number of exit requests on a certain warehouse floor is significantly higher than on other floors, the adoption pattern data may be generated without creating combination pattern data. For other warehouse floors, combination pattern data may be created to generate adoption pattern data.

In particular, when there are three or more warehouse floors and there is a floor that makes a prominent exit request, etc., one elevator can be occupied on that floor so that work can be carried out efficiently. Since it is not necessary to execute the calculation processing, the processing can be speeded up.

According to a fifth aspect of the present invention, in the system according to the first to fourth aspects, the data output device includes a screen input / output device configured to display a retrieval instruction on a display screen. Note that the data output device may be constituted only by the screen input / output device.

In a preferred embodiment, the screen input / output device is a trolley,
It is installed on a transport device such as a forklift.

By using the screen input / output device, it is possible to give a flexible dispatch instruction to the worker, and the work efficiency can be further improved by installing the device in a place where it is easy to see. If wireless communication is used, it can be installed on a transport device such as a trolley or a forklift, and an optimal work space can be provided.

According to a seventh aspect of the present invention, the work instruction data creating device is connected to a work state detecting device, and information on unexported pallets remaining on each warehouse floor is determined according to a pallet transfer state detected by the work state detecting device. The work progress information including is calculated.

According to an eighth aspect of the present invention, the work state detecting device detects the transfer state of the pallet by inputting the identification code attached to the pallet. In claim 9,
The work state detecting device is constituted by a sensor and a limit switch.

The work state is recognized using a sensor, a limit switch, a bar code reader, and the like, and the work progress management is automated. Thereby, labor saving of the unloading work is achieved.

According to a tenth aspect of the present invention, the loading / unloading instruction system further includes an elevator status detection device and a work status output device, and performs the work progress information and the operation information of each elevator input from the elevator status detection device. The notification is made by the status output device. In claim 11,
The work progress information and the operation information of each elevator input from the elevator state detection device are notified by a sound output device.

The loading / unloading instruction system is adapted to detect operation information of the elevator, and notify a worker of a work guide including the operation information and the work progress information to the worker by a work state output device or a speaker. is there. Thereby, the worker can grasp the state of the elevator, such as operating, stopping, stopped floor, emergency stop, and the like, and the retrieval operation can be performed more efficiently.

In the twelfth aspect, the adoption pattern data is recalculated based on the unpaid pallet information included in the work progress information.

Based on the results of work progress, recalculation is performed regularly or irregularly to obtain employment pattern data and output a delivery instruction. Therefore, dynamically responding to a sudden situation such as a trouble, an appropriate delivery instruction can be obtained. Can be changed.

According to the thirteenth aspect, the work instruction data creating device is connected to the elevator control device by wire or wirelessly, determines the stop floor of each elevator based on the work progress information, and issues a stop command to the elevator control device. Is output.

In particular, claim 14 compares the number of waiting pallets for each elevator at each warehouse floor, and claim 15 compares the waiting time for each elevator at each warehouse floor.
Has a function to determine the stop floor of the elevator by comparing the number of processed pallets and the number of unprocessed pallets for each elevator at each warehouse floor.

In addition to detecting the state of the elevator, a control command for designating a stop floor is output to the elevator. Since the stop floor is determined based on the number of unloaded pallets at each warehouse floor, etc., it is possible to carry out the warehouse work evenly for all warehouse floors, and it is also possible to eliminate the accumulation of waiting pallets before the elevator.

According to a seventeenth aspect of the present invention, there is provided a loading / unloading instruction method.
It is implemented in a logistics warehouse that uses a plurality of elevators to carry out unloading work, and has the following features.

[0030] In the method of the present invention, the work instruction data creating device includes the outgoing request data which is input from the data input device and stores the shipping destination of the load in association with the product number, and the warehouse floor where the load is located is converted into the product number. The number of outgoing pallets for each warehouse floor is calculated using the corresponding item arrangement data and the number of outgoing pallets for each warehouse floor. Using the capacity data, the allowed pallet number allowable range for the elevators for each warehouse floor is calculated by predetermined calculation means, and various combinations of numerical values are assigned from the assigned number width values of the allowed pallet number, and combination pattern data. And calculate the total occupation time of each elevator for each combination pattern, and calculate the total occupation time of each elevator calculated for each combination. Using the index value calculation method described above, the evaluation index value for each combination pattern is calculated, and the evaluation index values are compared among the combination patterns, and the total occupation time of each elevator is leveled. And outputs a retrieval instruction to the data output device based on the adoption pattern data.

[0031]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 2 shows (a) a schematic plan view of a warehouse floor,
(B) A conceptual diagram of work in a distribution warehouse using a plurality of elevators.

In this distribution warehouse, the second and third floors are assigned to a warehouse and the first floor to a cargo handling area. The cargo discharged from the warehouse is transferred to a pallet P, and the pallet P is transferred to the pallet P as shown in FIG. One of the three lifts E (# 1 to 3) is transported to the first floor.

According to the system of the present invention, the delivery instruction calculated based on the delivery request data is output to each warehouse, and as a result, the operation time between the elevators becomes equal as shown in FIG. , The overall working time is shortened and the working efficiency is improved.

It should be noted that the distribution warehouse to which the system of the present invention is applied is not limited to the one described above, and is applied regardless of the number of warehouses and the number of elevators.

FIG. 1 is a block diagram showing a configuration of a main part of the cargo unloading instruction system.

The system S comprises at least a data input device 1 for inputting outgoing request data and other data,
It is configured to include a work instruction data creation device 2 that stores and saves various data and creates the data by various processes, and a data output device 3 having an instruction screen for outputting the created instruction data. Work instruction data creation device 2
Is a storage unit 21 storing various data 21a to 21f.
And an operation unit 22 for generating various data.

FIG. 3 is a flowchart showing a schematic basic operation until a retrieval instruction is output in response to one retrieval request. The general operation will be described with various data 21a to 21f shown in FIG.

As shown in the flowchart, necessary data is input from the data input device 1 and stored in the storage unit 21 (101), and the retrieval request data 21a and the item arrangement data 2
The number of outgoing pallets 21d for each warehouse floor is calculated from 1c (102), and taking into account the lifting / lowering function force data 21b,
The allocation number width value which is the allowable range of the number of pallets to be taken out for the elevators for each warehouse floor is calculated (103), and the combination pattern data 21e is created by variously combining the numerical values included in the allocation number width value (104), and the combination pattern An evaluation index value for each elevator is calculated (105), a pattern for equalizing the use time of each elevator is selected from a plurality of combination patterns, and adoption data pattern data 21f is created (106). And outputs a retrieval instruction to the data output device 3 (107).

Hereinafter, each of the above steps (101 to 10)
Detailed processing corresponding to 7) will be described with reference to FIGS.

FIG. 4 is a data flow showing the processing operation of generating the outgoing pallet number data 21d for each warehouse. In this process, the number of pallets to be taken out of each warehouse floor is determined based on the shipping destination information of the requested luggage and the warehouse floor information where the luggage is stored.

That is, the delivery request data 21a and the item arrangement data 21c classified according to the product number are collated, the warehouse floor is arranged in the order of the shipping destination, intermediate data is created, and the warehouse is taken into consideration while considering the quantity and the number of talents. For each floor, luggage at the same destination is sequentially assigned to the same pallet, the number of pallets issued is counted, and the number of pallets issued for each warehouse 21d
Create Here, the talent number indicates a unit representing the volume of the package.

If there is a route reservation, the number of pallets to be taken out is calculated based on the above-described calculation procedure, excluding the luggage, which is assigned in advance to a designated elevator (pallet) for which the route reservation has been made.

FIG. 5 shows the combination pattern data 21e.
It is a flowchart which shows the processing operation of generation.

This process is divided into a process of generating an allocation reservation column based on route reservation and a process of generating a combination pattern column. For each of them, the number of pallets allocated for each elevator and the total occupation time are calculated. Is stored in each column. FIG. 6 shows the combination pattern data 21e.

The combinations shown in the combination pattern column are obtained by appropriately combining all numerical values included in the width value (upper / lower limit value), which is the allowable range of the number of pallets allocated to each elevator, for the three elevators. FIG. 7 shows a data flow for obtaining this width value.

Here, the lifting function force data 21b is data stored including the occupancy time and the use permission state for each warehouse floor and elevator, and the occupancy time is determined after the elevator moves from the first floor to the warehouse floor. Represents the average total time an elevator occupies for a single unloading operation on a floor, such as the total time to load a pallet, move back to the first floor, and unload the pallet.

Based on the occupation time data and the generated pallet number data 21d, an allocation number width value is calculated.

That is, first, the reciprocal value of each occupation time is obtained, and the lifting function force ratio is calculated for each floor. For example, 2F
, The reciprocal ratio is 1/123: 1/119: 1/10
2 = 813: 840: 980. Next, the number of outgoing pallets requested on each floor is sorted by the ratio of the reciprocal ratio.
For example, in the case of 2F, the number of pallets distributed for each elevator is 3.1, 3.2, 3, and 7. An integer width value is obtained from the palette value. For example, in the case of 2F, the width values are 3 to 4, 3 to 4, and 3 to 4.

Using the width values obtained in this way as upper and lower limits, combinations are created so that the total of all the elevators matches the number of requested pallets to be delivered, and the combination pattern data 21e
Is stored in the combination pattern column. Then, the total occupation time is calculated to generate the combination pattern data 21e.

Based on the processing shown in the flowchart of FIG. 9, the adoption pattern data 21f (FIG. 8) in which the total occupation time of each elevator is leveled is extracted from the combination pattern data 21e thus generated.

Here, the leveling pattern is obtained by comparing an evaluation index value, which is a value obtained by multiplying a variation value, which is a difference between the maximum value and the minimum value of the total occupation time of each elevator, by an average value of the total occupation time. To determine.

First, for all the combinations, the total occupation time of each elevator is calculated, and the variation value of the total occupation time is calculated (above, 301 to 304 in FIG. 9). here,
The total occupation time of each elevator is calculated by adding the total occupation time of each warehouse floor and the total occupation time of the allocation reservation. That is, for example, in the case of the elevator 1, the occupation time of the elevator 1 = (total occupation time of the elevator 1 on the second floor) + (total occupation time of the elevator 1 on the third floor) +
(Total occupation time of allocation reservation of elevator 1 on 2F) +
(Total occupation time of allocation reservation of elevator 1 on 3F).

Next, evaluation index values are calculated for all combinations (305 and 306 in FIG. 9). Here, the evaluation index value is obtained by multiplying the variation value by the average value of the total occupation time.

Then, a pattern having the smallest evaluation index value is selected from all the combination patterns, and adopted pattern data 21f is generated (307, 30 in FIG. 9).
8).

When two or more patterns are extracted as a result of the above-described optimal pattern selection, one pattern is further selected by executing the processing shown in FIG.

That is, when there are two or more patterns having the same evaluation index value, one pattern is adopted by comparing the average value and the variation value in this order. If the comparison still cannot be made, a pattern with a lower number is selected (401 to 406).

The method of selecting one from two or more patterns is not limited to the above method, as long as at least one pattern can be determined.

In this manner, a pattern in which the total value of the total occupied time of each elevator is leveled is determined, and the unloading operation is performed based on the planned value, so that the waiting time before the elevator is minimized. It is possible to do.

The evaluation index value serving as a reference for selecting a pattern in which the total occupation time of each elevator is the most equalized is not limited to the value obtained by the variation value × the average value. Good. Even when the average value is adopted, when the number of elevators is, for example, 10 or more, the average value may be obtained by excluding the maximum value and the minimum value.

When the use priority of the elevators is specified, the evaluation index value is calculated by taking the value obtained by multiplying the total occupation time of each elevator by the adoption ratio as the total occupation time.

The adoption ratio is represented by a distribution ratio such that the sum of the ratios of all the elevators becomes 1. For example, elevator E
If the adoption ratio of (# 1, 2, 3) is 3: 2: 5, the adoption ratios are 0.3, 0.2, and 0.5, respectively. Therefore, the total occupancy time for calculating the evaluation index value is, in the case of the elevator 1, the occupancy time of the elevator 1 = ｛(total occupancy time of the elevator 1 on the 2F) + (total occupancy time of the elevator 1 on the 3F)
+ (Total occupation time of allocation reservation of elevator 1 on 2F) +
(Total occupation time of allocation reservation of elevator 1 on 3F)｝ ×
0.3, a variation value and an average value are obtained from this value, and an evaluation index value is calculated.

As a result, when a specific elevator is preferentially designated for work reasons or the like, it is possible to make a delivery plan in consideration of the intention.

Here, the sum of the adoption ratios is set to 1, but is not limited to this. It suffices if an evaluation index value that can be compared relatively can be calculated. That is,
The above-mentioned adoption ratio (for example, 3: 2: 5) may be used as it is as the adoption ratio to calculate the evaluation index value.

Further, in the retrieval instruction system S, when the number of retrieval requests on a certain warehouse floor is significantly larger than that on another floor, and the difference from the number of retrieval requests on another floor exceeds a predetermined value. For the floor with a large number of retrieval requests, the adoption pattern data 21f can be generated without creating the combination pattern data 21e.

Specifically, for example, when the number of pallets requested for retrieval on the warehouse floor 2F is 1500 or 3F and 300 on the third floor, and the difference in retrieval requests is 1000 or more, all the requested pallets on the 2F are lifted by the elevator E Assigned to (# 1), 3
F creates data by assigning it to the other elevators E (# 2, 3).

As described above, for a specific warehouse floor, one elevator can be occupied and efficient work can be performed, and the calculation processing can be speeded up.

The recruitment pattern data 21f (FIG. 8) calculated as described above is instructed by the worker before the start of the work. When the position shifts, recalculation is performed to correct the shift. In this case, the re-calculation of the adopted pattern data 21f is performed based on the remaining pallet information that has not been delivered at that time. The recalculation may be performed periodically, or a manager may give a calculation instruction.

FIG. 11 is a diagram showing a screen output example of the screen input / output device.

The screen input / output device is a device constituting the data output device 3 and outputs the retrieval instruction obtained by the above-mentioned method on the screen to give the worker an operation instruction. FIG.
As shown in FIG. 1, an outgoing pallet list indicating the outgoing status and schedule for each pallet is displayed on the screen, and the status is updated or details are displayed by the operation of the operator.

The screen input / output device 3 is installed at an appropriate location on the warehouse floor. For example, as shown in the warehouse floor plan view of FIG. 12A, the elevators E (# 1 to 3) may be installed adjacent to each other, or as shown in FIG. It can be attached to a forklift.

As described above, since the leaving instruction data is output by the screen input / output device, the leaving instruction data can be flexibly given to the worker, and the work efficiency can be further improved by installing the device at an appropriate place. Can be improved. In particular, an optimal work space can be provided by installing the device on a transport device such as a cart or a forklift using wireless communication.

FIG. 13 is a block diagram showing another example of the main configuration of the unloading instruction system.

The system S includes a data input device 1,
In addition to the work instruction data creation device 2 and the data output device 3,
A work state output device 4 for notifying a worker of work progress information and operation information of a lift, a work state detection device 5 for detecting a state of a pallet P, and a lift state detection device for detecting an operation state of the lift 6. A lift control device 7 for outputting a control signal to the lift E is further connected.

The work state detecting device 5 has, for example, the configuration shown in FIG.
A bar code reader for reading a bar code B attached to a pallet as shown in FIG. 14A to identify a pallet number, a sensor 5a buried in a pallet place before an elevator as shown in FIG. Is included.

The number of pallets scheduled to be dispatched or dispatched can be counted by these devices 5,
Work progress management can be easily performed.

FIG. 15 shows an example of the work status output device 4 for notifying a worker of work progress information and a work instruction to be changed according to the progress.

FIG. 15A is a diagram showing a display example of the electronic bulletin board 4a installed near the elevator. On this screen,
In addition to the operation information of each elevator described later, the number of unpalletized pallets planned for each elevator on each warehouse floor is displayed.
For example, when the elevator E (# 3) is stopped,
The administrator looks at the display on the electronic bulletin board 4a and instructs to use another elevator, or the operator himself sees this display and uses another elevator voluntarily.

As shown in FIG. 15B, the instruction to the worker is notified by voice using a speaker 4b or the like installed at an appropriate location on the warehouse floor.

As described above, various work state output devices 4a,
4b ensures that the work state is communicated to the worker, and that the worker can quickly respond to unexpected situations such as troubles.

The operating information of the elevator displayed on the electronic bulletin board 4a is detected by the elevator state detecting device 6 such as operating, stopped, stopped floor, emergency stopped, and the like. Then, the loading / unloading instruction system S includes operation information of each elevator E,
It outputs a control command for each of the elevators E (# 1 to 3) to the elevator control device 7 based on the exit instruction (employment pattern data 21f) and the work progress information.

The flowchart of FIG. 16 shows a basic operation for outputting a control command to one elevator. Here, when a predetermined time comes, the elevator E is moved to an appropriate floor so that luggage can be loaded.

The elevator E waits at the loading position (1F), which is the initial position, until the control timing comes. At the control timing, the elevator E recognizes the work state and stops when there is a pallet to be taken out. Determine the floor, operate the elevator,
It repeats until the carry-out of the pallet which should be taken out at that timing is completed (501-507).

Here, the method of recognizing the work state includes a case where the determination is made based on the presence / absence of a waiting pallet detected by the sensor 5a, the presence / absence of an unprocessed pallet calculated by progress management, and the like.

The stop floor is determined by (1) comparing the number of waiting pallets on each warehouse floor and setting the floor with the larger number of waiting pallets as the stop floor, and (2) comparing the waiting time on each warehouse floor. (3) comparing the number of pallets processed by the elevator with the number of unprocessed pallets scheduled to be processed, for example, a floor with a small number of processes,
A method in which a floor with a large number of unprocessed or a floor with a small ratio of the number of processes (the number of processes divided by the total number) is set as a stop floor is realized by appropriately combining the priorities.

As described above, in addition to detecting the state of the elevator, the control command for designating the stop floor is output to the elevator, so that a comprehensive automatic warehouse system can be realized. Since the stop floor is determined based on the number of unloaded pallets at each warehouse floor, etc., it is possible to carry out the warehouse work evenly for all warehouse floors, and it is also possible to eliminate the accumulation of waiting pallets before the elevator.

[0087]

As can be understood from the above description, according to the present invention as set forth in claims 1 to 17, the total occupation time is calculated by the difference between the maximum value and the minimum value of the total occupation time for each elevator. The evaluation index value, which is a value multiplied by the average value of the total, is compared with the calculated combination pattern, and a leveling pattern that minimizes the evaluation index value is employed. Therefore, efficient outgoing work can be realized.

According to the second aspect, when calculating the number of pallets to be issued for each warehouse floor, the pallets for which route reservation has been performed are preferentially assigned to the designated elevators, and patterns are created only for exit requests other than route reservation. Therefore, it is possible to make a more accurate exit plan.

According to the third aspect, the delivery instruction is given in consideration of the designation of the use priority of the elevators. Therefore, the delivery plan is considered in consideration of the desire to designate a specific elevator for each pallet for work reasons or the like. Can stand.

According to the fourth aspect, when the number of requested outgoings of a certain warehouse floor is significantly higher than that of another floor, adoption pattern data is generated irrespective of combination pattern data. If there are three or more floors and there is a floor that makes a prominent exit request,
One elevator can be occupied on the floor to work efficiently, and the calculation processing is not executed on the floor, so that the processing speed can be increased.

According to the fifth or sixth aspect of the present invention, the leaving instruction is output by the screen input / output device, so that the leaving instruction can be flexibly issued to the worker. Efficiency can be improved. In particular, according to claim 6, since it is installed on a transport device such as a truck or a forklift, an optimal work space can be provided.

According to the seventh to ninth aspects, the work state is recognized using a sensor, a limit switch, a bar code reader, and the like, and the automation of the work progress management is realized. .

According to the tenth or eleventh aspect, the loading / unloading instruction system can detect the operation information of the elevator, and notify the worker of a work guide including the operation information and the work progress by using a work state output device or a speaker. Since the elevator can be operated, the worker can grasp the state of the elevator during operation, stoppage, stop floor, emergency stop, and the like, and the retrieval operation can be more efficiently performed.

According to the twelfth aspect, the recruitment pattern is recalculated regularly or irregularly based on the actual results of the work and the delivery instruction is output. Can be notified of the instruction change to the operator.

According to the thirteenth to sixteenth aspects, not only the state of the elevator is detected but also a control command for designating a stop floor is output to the elevator, so that a comprehensive automatic warehouse system can be realized. it can. In particular, claims 14 to 1
In 6, the stop floor can be determined on the basis of the number of unloaded pallets at each warehouse floor, and the like, so that the unloading work can be performed evenly on all the warehouse floors, and the stagnation of waiting pallets before the elevator can be eliminated.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a main part of a loading / unloading instruction system of the present invention.

FIG. 2 (a) is a schematic plan view of a warehouse floor, and FIG. 2 (b) is a conceptual diagram showing a working situation in a distribution warehouse using a plurality of elevators.

FIG. 3 is a flowchart showing a schematic basic operation until a delivery instruction is output.

FIG. 4 is a data flowchart showing a process of generating data on the number of pallets to be taken out for each warehouse.

FIG. 5 is a flowchart illustrating a processing operation of generating combination pattern data.

FIG. 6 is a diagram showing an internal structure of combination pattern data.

FIG. 7 is a data flowchart showing a process of calculating a width value of the number of pallets to be allocated to each elevator.

FIG. 8 is a data flowchart showing an adopted pattern data generation process.

FIG. 9 is a flowchart showing a basic operation of generating adopted pattern data.

FIG. 10 is a flowchart illustrating a process of selecting one pattern from a plurality of patterns.

FIG. 11 is a diagram illustrating a screen output example of a screen input / output device.

FIG. 12 is a diagram showing an arrangement example of a screen input / output device;
(A) is a floor plan of the warehouse floor in the case where the warehouse floor is arranged at an appropriate position;
(B) is a side view when it is installed on a truck or forklift.

FIG. 13 is a block diagram showing another example of the configuration of the main part of the unloading instruction system of the present invention.

14A is a diagram for explaining bar code reading attached to a pallet, and FIG. 14B is a plan view of a pallet storage space before a lift in which a sensor is embedded.

15A is a diagram illustrating a display example of an electronic bulletin board installed near an elevator, and FIG. 15B is a diagram illustrating a speaker installation example for notifying an operator of a change instruction or the like.

FIG. 16 is a flowchart showing a basic operation of an elevator control command output.

[Explanation of symbols]

 S Loading and unloading instruction system 1 Data input device 2 Work instruction data creation device 21a Departure request data 21b Elevation function force data 21c Mono placement data 21d Departure pallet number data for each warehouse 21e Combination pattern data 21f Adopted pattern data 3 Data output device 4 Work state Output device 4a Electronic bulletin board 4b Audio output device (speaker) 5 Work status detection device 5a Sensor, limit switch 6 Elevator status detection device 7 Elevator control device E Elevator

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shigeki Asaoka 1048 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Works F-term (reference) 3F022 EE02 FF01 JJ19 MM11 MM35

Claims (17)

[Claims] 1. A loading / unloading instruction system in a distribution warehouse that includes a data input device, a work instruction data generating device, and a data output device, and performs loading / unloading using a plurality of elevators. , Outgoing request data entered from the data input device that stores the destination of the load in association with the load part number, and goods placement data that stores the warehouse floor where the load is located in accordance with the part number. Calculate the number of outgoing pallets for each warehouse floor by using the data of the number of outgoing pallets for each warehouse floor and the data input device. The allowable number of outgoing pallets for the elevators for each floor is calculated by a predetermined calculation method, and various values are combined from the allocated number width values of the allowable number of outgoing pallets. Then, create combination pattern data, calculate the total occupation time of each elevator for each combination pattern, and use the total occupation time of each elevator calculated for each combination by a predetermined index value calculation method. Calculating an evaluation index value for each of the combination patterns, and selecting an adoption pattern in which the total occupation time of each elevator is equalized by comparing the evaluation index values from the combination pattern data, A loading / unloading instruction system in a distribution warehouse, wherein a loading instruction is output to a data output device based on data. 2. The apparatus according to claim 1, wherein the work instruction data creation device includes, when receiving a route reservation in units of a delivery pallet, the occupation time of each elevator reserved for the route in the total occupation time of each elevator. A loading / unloading instruction system in a distribution warehouse, characterized in that it is calculated by: 3. The work instruction data creating device according to claim 1, wherein when the use priority of the elevator is specified in advance, the work instruction data creating device calculates the evaluation index value in consideration of the adoption ratio of the elevator determined by the use priority. A loading / unloading instruction system in a distribution warehouse. 4. The work instruction data creating device according to claim 1, wherein the number of requested outgoings of a certain warehouse floor is larger than that of another warehouse floor, and the difference exceeds a predetermined numerical value. A loading / unloading instruction system in a logistics warehouse, wherein a specific elevator is assigned to the exit of the warehouse floor and adoption pattern data excluding the elevator is created. 5. The data output device according to claim 1, wherein the data output device includes a screen input / output device configured to display a delivery instruction on a display screen.
A loading / unloading instruction system in a distribution warehouse. 6. The screen input / output device according to claim 5, wherein the screen input / output device is installed on a transport device such as a bogie, a forklift, etc., and communicates with the work instruction data creating device via wireless to output a display of a retrieval instruction. A loading and unloading instruction system in a distribution warehouse, characterized in that it is performed. 7. The work instruction data creation device according to claim 1, wherein the work instruction data creation device is connected to the work state detection device by wire or wirelessly. A loading / unloading instruction system in a distribution warehouse, wherein work progress information including at least information on unexported pallets on each warehouse floor is calculated based on the pallet transfer status detected by the system. 8. A loading / unloading instruction system in a distribution warehouse according to claim 7, wherein said work state detecting device detects the transfer status of the pallet by inputting an identification code attached to the pallet. 9. A loading / unloading instruction system in a distribution warehouse according to claim 7, wherein said work state detecting device is constituted by a sensor or a limit switch. 10. The loading / unloading instruction system according to any one of claims 7 to 9, wherein:
Further comprising a work state output device, wherein the work instruction data creating device, the work progress information,
A loading / unloading instruction system in a distribution warehouse, wherein operation information of each elevator input from an elevator status detection device is notified by a work status output device. 11. The work state output device according to claim 10, wherein the work state output device includes a voice output device, and the work instruction data creating device includes the work progress information and the information of each elevator input from the lift state detection device. A loading / unloading instruction system in a distribution warehouse, wherein operation information is notified by voice. 12. The work instruction data creation device according to claim 7, wherein the work instruction data creation device recalculates adoption pattern data based on the unextracted pallet information included in the work progress information, and outputs an exit instruction. A loading / unloading instruction system in a distribution warehouse. 13. The work instruction data creating device according to claim 7, wherein the work instruction data creating device is connected to the elevator control device by wire or wirelessly, and determines a stop floor of each elevator based on the work progress information. A loading / unloading instruction system in a distribution warehouse, which outputs a stop command to a device. 14. A loading / unloading instruction system in a distribution warehouse according to claim 13, further comprising a function of comparing the number of waiting pallets for each elevator at each warehouse floor to determine a stop floor of the elevator. 15. The loading / unloading instruction system in a distribution warehouse according to claim 13, further comprising a function of comparing a waiting time of each elevator at each warehouse floor to determine a stop floor of the elevator. 16. A loading / unloading instruction system in a distribution warehouse according to claim 13, further comprising a function of comparing the number of processed pallets and the number of unprocessed pallets for each elevator at each warehouse floor to determine the stop floor of the elevator. . 17. A method for loading and unloading using a data input device, a work instruction data creating device, and a data output device in a distribution warehouse that carries out loading and unloading using a plurality of elevators. Is the delivery request data that is input from the data input device and stores the shipment destination according to the product number, and the goods location data that stores the warehouse floor where the load is located according to the product number. Calculate the number of outgoing pallets for each warehouse floor using the above, using the number of outgoing pallets per warehouse floor data and the input / output data from the data input device, using the lifting function force data including the average occupancy time of each elevator, The allowable range of the number of outgoing pallets for the elevators for each warehouse floor is calculated by a predetermined calculating means, and various combinations of numerical values are made from the allocated number width values of the allowable number of outgoing pallets. In addition, the combination pattern data is created, the total occupancy time of each elevator is calculated for each combination pattern, and the predetermined index value calculation unit uses the total occupancy time of each elevator calculated for each combination. Calculating an evaluation index value for each of the combination patterns, and selecting an adoption pattern in which the total occupation time of each elevator is equalized from the combination patterns by comparing the evaluation index values, and selecting the adoption pattern. A loading and unloading instruction method in a distribution warehouse, characterized by outputting an unloading instruction to a data output device based on data.