CN117540946A - Stereoscopic warehouse task scheduling method, device and system - Google Patents

Abstract

The invention relates to the field of task scheduling, and particularly discloses a stereoscopic warehouse task scheduling method, device and system, which are used for detecting whether unallocated request tasks exist in a task scheduling queue; if the request task exists, the request task identification is issued to a corresponding PLC control system according to the library position information in the request task; detecting whether an unexecuted request task identifier exists in a PLC control system; if so, detecting whether the database has the matched request task according to each unexecuted request task identifier; if yes, downloading a task to a PLC control system; if not, the task information is written into the database, and then the task is downloaded to the PLC control system. The invention ensures that the stored request task information is correctly matched with the executed request task, provides accurate data support for data maintenance and material maintenance, and ensures the stable operation of the warehouse-in task and the warehouse-out task.

Description

Stereoscopic warehouse task scheduling method, device and system

Technical Field

The invention relates to the field of task scheduling, in particular to a stereoscopic warehouse task scheduling method, device and system.

Background

The automatic stereoscopic warehouse is a warehouse which adopts multi-layer goods shelf storage units for goods, and performs goods warehouse-in and warehouse-out operation by using corresponding material handling equipment, and has the advantages of improving the space utilization rate, being high in storage and taking efficiency, being convenient for producing a high-efficiency logistics system and the like.

The current stereoscopic warehouse generally manages task data and scheduling by a stereoscopic warehouse management system, after receiving a request task, the stereoscopic warehouse management system needs to write relevant data into a database for storage, and issues the request task to a PLC control system of a stacker, and the stacker executes the request task. The related art discloses a method for automatically maintaining shelf information of an automatic stereoscopic warehouse, which comprises the following steps: s1: establishing a shelf file, and initializing the storage state and the goods channel transportation state of storage grids on a shelf; s2: monitoring a goods channel in real time, and transmitting and recording access information and movement information of a goods shelf; s3: for the goods added into the goods channel, optimizing and storing the goods according to the types of the goods by using a uniformly distributed particle swarm optimization algorithm; s4: and when receiving the goods taking-out instruction, taking out the goods according to the instruction requirement.

In the prior art, task execution is performed after a stacker receives a request task, however, the storage of task data by a stereoscopic warehouse management system may be abnormal, so that the data is not stored correctly and timely, the situation that the stored data is inconsistent with the execution task occurs at the moment, inconvenience is brought to the subsequent material warehouse entry and exit and data maintenance, and the abnormal material warehouse entry and exit task is caused.

Disclosure of Invention

In order to solve the problems, the invention provides a stereoscopic warehouse task scheduling method, a stereoscopic warehouse task scheduling device and a stereoscopic warehouse task scheduling system, when a request task is issued to a PLC control system, a request task identifier is issued first, after request task information is recorded in a database, the request task is downloaded to inform the PLC control system that the request task information can be executed, the stored request task information is ensured to be matched with the executed request task correctly, accurate data support is provided for data maintenance and material maintenance, and stable operation of a warehouse-in task and a warehouse-out task is ensured.

In a first aspect, the present invention provides a stereoscopic warehouse task scheduling method, including the following steps:

detecting whether unallocated request tasks exist in a task scheduling queue;

if the request task exists, the request task identification is issued to a corresponding PLC control system according to the library position information in the request task;

detecting whether an unexecuted request task identifier exists in a PLC control system;

if so, detecting whether the database has the matched request task according to each unexecuted request task identifier;

if yes, downloading a task to a PLC control system;

if not, the task information is written into the database, and then the task is downloaded to the PLC control system.

In an alternative embodiment, before downloading the task to the PLC control system, the method further comprises the steps of:

detecting whether a stereoscopic warehouse management system has processed a request task;

if yes, downloading a task to a PLC control system;

if not, continuously detecting whether the stereoscopic warehouse management system has processed the request task.

In an alternative embodiment, the method further comprises the following steps before detecting whether the unallocated request task exists in the task scheduling queue:

receiving a request task of a user;

matching library bits for the request task according to the identification information in the request task;

adding a request task carrying a matching library bit into a task scheduling queue;

and writing the data related to the requested task into a database.

In an alternative embodiment, matching the library bits for the request task according to the identification information in the request task, including the library bit matching when the request task is a warehousing operation, specifically includes:

identifying a bar code number;

inquiring a tray table according to the bar code number to find a tray ID mark;

inquiring a tray material table through the tray ID identification to find the tray material ID identification;

inquiring the names and types of the material tables according to the material ID identification of the tray;

inquiring the bin category according to the tray category and the material type;

based on the library position category, the optimal library position is obtained through a library position distribution module.

In an alternative embodiment, the method further comprises the following steps after obtaining the optimal library bit by the library bit allocation module:

and inserting the data related to the requested task into the flow water meter.

In an alternative embodiment, matching the library bits for the request task according to the identification information in the request task, including the library bit matching when the request task is a delivery operation, specifically includes:

receiving a material number or name, and inquiring a material ID (identity);

inquiring a tray material table according to the material ID identification to obtain a tray ID identification;

acquiring a tray number according to the tray ID;

and acquiring the optimal tray number, inquiring a tray position table, and acquiring the library position information.

In an alternative embodiment, after obtaining the library bit information, the method further comprises the steps of:

and updating the tray material table.

In a second aspect, the technical scheme of the invention provides a stereoscopic warehouse task scheduling device, which comprises,

request task detection unit: detecting whether unallocated request tasks exist in a task scheduling queue;

a request task issuing unit: if the request task exists, the request task identification is issued to a corresponding PLC control system according to the library position information in the request task;

request task identification detection unit: detecting whether an unexecuted request task identifier exists in a PLC control system;

request task matching unit: if so, detecting whether the database has the matched request task according to each unexecuted request task identifier;

request task download unit: if yes, downloading a task to a PLC control system; if not, the task information is written into the database, and then the task is downloaded to the PLC control system.

In an alternative embodiment, the request task downloading unit is further configured to detect whether the stereoscopic warehouse management system has processed the request task; if yes, downloading a task to a PLC control system; if not, continuously detecting whether the stereoscopic warehouse management system has processed the request task.

In a third aspect, the present invention provides a stereoscopic warehouse task scheduling system, including,

user operation terminal: the method comprises the steps that the method is used for a user to operate, input a request task and send the request task to a server; receiving execution completion information fed back by a server;

and (3) a server: receiving a request task, performing library bit allocation for the request task, scheduling the request task, issuing the request task to a PLC control system, and storing request task data to a database; receiving execution completion information fed back by the PLC control system, and feeding the execution completion information back to the user operation terminal;

and a PLC control system: and receiving and executing the request task, and feeding back to the server after the execution is completed.

Compared with the prior art, the stereoscopic warehouse task scheduling method, device and system provided by the invention have the following beneficial effects: when a request task is issued to the PLC control system, a request task identifier is issued firstly, after request task information is recorded in a database, the request task is downloaded to inform the PLC control system of being executable, the stored request task information is ensured to be matched with the executed request task correctly, accurate data support is provided for data maintenance and material maintenance, and stable operation of a warehouse-in task and a warehouse-out task is ensured.

Drawings

For a clearer description of embodiments of the invention or of the prior art, the drawings that are used in the description of the embodiments or of the prior art will be briefly described, it being apparent that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

Fig. 1 is a schematic block diagram of a stereoscopic warehouse task scheduling system architecture provided by an embodiment of the invention.

Fig. 2 is a schematic flow chart of a stereoscopic warehouse task scheduling method provided by an embodiment of the invention.

Fig. 3 is a schematic block diagram of a stereoscopic warehouse task scheduling device according to an embodiment of the present invention.

Detailed Description

In order to better understand the aspects of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Fig. 1 is a schematic block diagram of a stereoscopic warehouse task scheduling system architecture provided by an embodiment of the present invention, and as shown in fig. 1, the system includes a user operation terminal, a server, a database, and a PLC (programmable logic controller) control system, where it should be noted that the PLC control system refers to a PLC control system of a stacker, and the stacker places materials on a shelf.

User operation terminal: the method comprises the steps that the method is used for a user to operate, input a request task and send the request task to a server; and receiving execution completion information fed back by the server.

And (3) a server: receiving a request task, performing library bit allocation for the request task, scheduling the request task, issuing the request task to a PLC control system, and storing request task data to a database; and receiving the execution completion information fed back by the PLC control system, and feeding back the execution completion information to the user operation terminal.

And a PLC control system: and receiving and executing the request task, and feeding back to the server after the execution is completed.

The user sends a request of warehousing or ex-warehouse through the user operation terminal, the server executes the request after obtaining the request of warehousing or ex-warehouse, the request task is put into the task scheduling module and corresponding data are written into the database, if the request is in-warehouse, the task scheduling module of the server distributes library positions to the task, the task is issued to the PLC control system, and after the PLC control system finishes the task, the server obtains a completion signal and displays the completion signal on the user operation interface.

Based on the system, the server schedules the tasks of each stacker, sequentially transmits the request tasks in the task scheduling queues to the corresponding PLC control system, simultaneously writes the request task information into the database for storage, and triggers the PLC control system to execute the request tasks when the corresponding request tasks are matched in the database.

Fig. 2 is a schematic flow chart of a stereoscopic warehouse task scheduling method provided by an embodiment of the invention, and as shown in fig. 2, the method comprises the following steps.

S1, detecting whether unallocated request tasks exist in a task scheduling queue.

And detecting the task scheduling queue in real time, and judging whether unallocated request tasks exist in the task queue. Specifically, the general task is issued faster, and whether a new request task exists or not can be detected, wherein the new request task is an unassigned request task.

The user initiates a material storage task according to the need, the material storage task is issued to the server, the server detects whether a new request task is added to the task scheduling queue in real time, and if the new request task is added, the new request task is judged to be an unassigned request task.

S2, if the request task exists, the request task identification is issued to the corresponding PLC control system according to the library position information in the request task.

If the task scheduling queue has unallocated request tasks, the request task identification needs to be issued to the corresponding PLC control system, and the PLC control system is informed of the request tasks to be executed. It should be noted that, the request task includes library information, and different PLC control systems manage different library, and when the request task is issued, the library information is sent to the corresponding PLC control system.

S3, detecting whether the unexecuted request task identifier exists in the PLC control system.

For the execution of the request task in the PLC control system, firstly, whether the unexecuted request task identification exists or not is searched, and for the unexecuted request task, the request task in the database needs to be matched.

And S4, if so, detecting whether the matched request task exists in the database according to each unexecuted request task identifier.

Specifically, for a request task identifier which is not executed in the PLC control system, detecting in a database whether the request task can be matched with a consistent request task, if the request task can be matched with the request task, indicating that the request task is stored completely, executing the download task, and if the request task cannot be matched with the request task, the task is not stored completely, and the task needs to be stored first and then executed.

And S5, if yes, downloading a task to the PLC control system.

And S6, if the task information is not written into the database, the task information is downloaded to the PLC control system.

When the stereoscopic warehouse task scheduling method provided by the embodiment issues the request task to the PLC control system, the request task identifier is issued first, after the request task information is recorded in the database, the request task is downloaded to inform the PLC control system that the request task information can be executed, the stored request task information is ensured to be matched with the executed request task correctly, accurate data support is provided for data maintenance and material maintenance, and stable operation of the warehouse-in task and the warehouse-out task is ensured.

In an alternative embodiment, before downloading the task to the PLC control system, detecting whether the stereoscopic warehouse management system has processed the request task, if yes, downloading the task to the PLC control system, and if not, continuously detecting whether the stereoscopic warehouse management system has processed the request task. It can be understood that when the unexecuted request task identifier exists in the PLC control system, whether the matched request task exists in the database is detected, whether the stereoscopic warehouse management system has processed the request task is detected, the matched request task exists in the database, and the stereoscopic warehouse management system has processed the request task, then the task is downloaded to the PLC control system, and the completion of the storage and the processing of the request task is ensured. The stereoscopic warehouse management system is configured in the server and is used for inserting the request task into the account table and the flow water meter or updating the account table and the flow water meter.

After receiving a request task of a user operation terminal, the server adds the request task into a task scheduling queue and matches library positions, and the method specifically comprises the following steps.

S0-1, receiving a request task of a user.

S0-2, matching library bits for the request task according to the identification information in the request task.

S0-3, adding the request task carrying the matching library bit into a task scheduling queue.

S0-4, writing the data related to the requested task into a database.

According to the identification information in the request task, the matching of the library bits for the request task comprises library bit matching when the request task is a warehouse-in operation and library bit matching when the request task is a warehouse-out operation.

The request task is library bit matching during the warehouse-in operation, and specifically comprises the following steps.

And step 1, identifying the bar code number.

And step 2, inquiring a tray table according to the bar code number to find the tray ID.

And step 3, inquiring a tray material table through the tray ID identification, and finding the tray material ID identification.

And 4, inquiring names and types of the material tables according to the ID identification of the material of the tray.

And 5, inquiring the bin category according to the tray category and the material type.

And 6, acquiring the optimal library position through a library position distribution module based on the library position category.

And 7, inserting the data related to the requested task into the flow water meter.

It can be understood that a plurality of library positions exist in each library region, each library position has a unique identity, and meanwhile, specific physical substances of each library position are recorded, the library position distribution module is configured to update the library position information once each material is stored, including whether the material is occupied or not, and the like, of course, the material placement rule is also configured in advance, and the library position distribution module finds a suitable library position according to the material placement rule, the library position state and the like.

In addition, the request task comprises information such as request time, and the request task is inserted into the flow meter according to the request time and the sequence from front to back according to the request time. The request task also contains information such as materials, identifies information types and inserts the information types into corresponding positions in the flow water meter.

In particular, the data related to the requested task can be inserted into the account table at the same time.

In the warehouse-in process, an operator binds the warehouse-in material with the tray first.

The request task is library bit matching in the ex-library operation, and specifically comprises the following steps.

Step 1, receiving a material number or name, and inquiring a material ID identification.

And 2, inquiring a tray material table according to the material ID identification, and acquiring the tray ID identification.

And step 3, acquiring a tray number according to the tray ID.

And step 4, acquiring the optimal tray number, inquiring a tray position table, and acquiring the library position information.

It should be noted that the optimal tray number may be single or multiple, and is determined according to the material to be taken out in the request task, if the material occupies only one tray, the corresponding single tray code is obtained, and if the material occupies multiple trays, the corresponding multiple tray codes are obtained.

And 5, updating a tray material table.

In practice, the account table may be updated simultaneously.

In the process of ex-warehouse, an operator executes an ex-warehouse operation request on an operation interface, adds an ex-warehouse task, and the management system executes the flow of the ex-warehouse operation and gives the task to the task scheduling module.

The embodiment of the stereoscopic warehouse task scheduling method is described in detail above, and based on the stereoscopic warehouse task scheduling method described in the embodiment, the embodiment of the invention also provides a stereoscopic warehouse task scheduling device corresponding to the method.

Fig. 3 is a schematic block diagram of a stereoscopic warehouse task scheduling device according to an embodiment of the present invention, where the stereoscopic warehouse task scheduling device may be divided into a plurality of functional units according to the functions performed by the stereoscopic warehouse task scheduling device, as shown in fig. 3. The functional unit may include: the system comprises a request task detection unit, a request task issuing unit, a request task identification detection unit, a request task matching unit and a request task downloading unit. The unit referred to in the present invention refers to a series of computer program segments, stored in a memory, capable of being executed by at least one processor and of performing a fixed function.

Request task detection unit: and detecting whether unallocated request tasks exist in the task scheduling queue.

A request task issuing unit: if the request task exists, the request task identification is issued to the corresponding PLC control system according to the library position information in the request task.

Request task identification detection unit: and detecting whether the unexecuted request task identifier exists in the PLC control system.

Request task matching unit: if so, detecting whether the database has the matched request task according to the unexecuted request task identification.

Request task download unit: if yes, downloading a task to a PLC control system; if not, the task information is written into the database, and then the task is downloaded to the PLC control system.

In an alternative embodiment, the request task downloading unit of the device is further configured to detect whether the stereoscopic warehouse management system has processed the request task; if yes, downloading a task to a PLC control system; if not, continuously detecting whether the stereoscopic warehouse management system has processed the request task.

In an alternative embodiment, the device further comprises the following functional units.

Task receiving unit: a requested task of a user is received.

Library bit matching unit: and matching library bits for the request task according to the identification information in the request task.

Task joining queue unit: and adding the request task carrying the matching library bit into a task scheduling queue.

A data storage unit: and writing the data related to the requested task into a database.

In an optional embodiment, the library matching unit matches library for the request task according to the identification information in the request task, including library matching when the request task is a warehousing operation, and specifically includes: identifying a bar code number; inquiring a tray table according to the bar code number to find a tray ID mark; inquiring a tray material table through the tray ID identification to find the tray material ID identification; inquiring the names and types of the material tables according to the material ID identification of the tray; inquiring the bin category according to the tray category and the material type; based on the library position category, acquiring an optimal library position through a library position distribution module; and inserting the data related to the requested task into the account book table and the flow water meter.

In an optional embodiment, the library matching unit matches library for the request task according to the identification information in the request task, including library matching when the request task is a library-out operation, and specifically includes: receiving a material number or name, and inquiring a material ID (identity); inquiring a tray material table according to the material ID identification to obtain a tray ID identification; acquiring a tray number according to the tray ID; acquiring the best single or multiple tray numbers, inquiring a tray position table, and acquiring library position information; and updating the tray material table and the account table.

The foregoing disclosure is merely illustrative of the preferred embodiments of the invention and the invention is not limited thereto, since modifications and variations may be made by those skilled in the art without departing from the principles of the invention.

Claims (10)

1. The stereoscopic warehouse task scheduling method is characterized by comprising the following steps of:

detecting whether unallocated request tasks exist in a task scheduling queue;

if the request task exists, the request task identification is issued to a corresponding PLC control system according to the library position information in the request task;

detecting whether an unexecuted request task identifier exists in a PLC control system;

if so, detecting whether the database has the matched request task according to each unexecuted request task identifier;

if yes, downloading a task to a PLC control system;

if not, the task information is written into the database, and then the task is downloaded to the PLC control system.

2. The stereoscopic warehouse task scheduling method of claim 1, further comprising the steps of, prior to downloading the task to the PLC control system:

detecting whether a stereoscopic warehouse management system has processed a request task;

if yes, downloading a task to a PLC control system;

if not, continuously detecting whether the stereoscopic warehouse management system has processed the request task.

3. The stereoscopic warehouse task scheduling method according to claim 2, further comprising the step of, before detecting whether there is an unassigned request task in the task scheduling queue:

receiving a request task of a user;

matching library bits for the request task according to the identification information in the request task;

adding a request task carrying a matching library bit into a task scheduling queue;

and writing the data related to the requested task into a database.

4. A stereoscopic warehouse task scheduling method according to claim 3, wherein matching the library bits for the request task based on the identification information in the request task includes library bit matching when the request task is a warehouse entry operation, specifically including:

identifying a bar code number;

inquiring a tray table according to the bar code number to find a tray ID mark;

inquiring a tray material table through the tray ID identification to find the tray material ID identification;

inquiring the names and types of the material tables according to the material ID identification of the tray;

inquiring the bin category according to the tray category and the material type;

based on the library position category, the optimal library position is obtained through a library position distribution module.

5. The stereoscopic warehouse task scheduling method according to claim 4, further comprising the steps of, after the optimal bin is obtained by the bin allocation module:

and inserting the data related to the requested task into the flow water meter.

6. The stereoscopic warehouse task scheduling method as claimed in claim 5, wherein the matching of the library bits for the request task based on the identification information in the request task includes the library bit matching when the request task is an out-of-library operation, and specifically includes:

receiving a material number or name, and inquiring a material ID (identity);

inquiring a tray material table according to the material ID identification to obtain a tray ID identification;

acquiring a tray number according to the tray ID;

and acquiring the optimal tray number, inquiring a tray position table, and acquiring the library position information.

7. The stereoscopic warehouse task scheduling method according to claim 6, further comprising the steps of, after acquiring the bin information:

and updating the tray material table.

8. A stereoscopic warehouse task scheduling device is characterized by comprising,

request task detection unit: detecting whether unallocated request tasks exist in a task scheduling queue;

a request task issuing unit: if the request task exists, the request task identification is issued to a corresponding PLC control system according to the library position information in the request task;

request task identification detection unit: detecting whether an unexecuted request task identifier exists in a PLC control system;

request task matching unit: if so, detecting whether the database has the matched request task according to each unexecuted request task identifier;

request task download unit: if yes, downloading a task to a PLC control system; if not, the task information is written into the database, and then the task is downloaded to the PLC control system.

9. The stereoscopic warehouse task scheduling device according to claim 8, wherein the request task downloading unit is further configured to detect whether the stereoscopic warehouse management system has processed the request task; if yes, downloading a task to a PLC control system; if not, continuously detecting whether the stereoscopic warehouse management system has processed the request task.

10. A stereoscopic warehouse task scheduling system is characterized by comprising,

user operation terminal: the method comprises the steps that the method is used for a user to operate, input a request task and send the request task to a server; receiving execution completion information fed back by a server;

and (3) a server: receiving a request task, performing library bit allocation for the request task, scheduling the request task, issuing the request task to a PLC control system, and storing request task data to a database; receiving execution completion information fed back by the PLC control system, and feeding the execution completion information back to the user operation terminal;

and a PLC control system: and receiving and executing the request task, and feeding back to the server after the execution is completed.