Patent Application
20250085717
The present application claims priority to Chinese Patent Application No. CN202311158904.2, filed with the China National Intellectual Property Administration on Sep. 8, 2023, the disclosure of which is hereby incorporated herein by reference in its entirety.
The present disclosure relates to the field of computer technology, and in particular, to the field of automation control.
In the process of doffing yarn spindle products in a winding machine, a doffing task can be completed by an Automated Guided Vehicle (AGV). However, due to the limitation of the AGV's operating speed and path, the AGV may not reach the designated position in time to complete the doffing task. This results in lower doffing efficiency of the yarn spindle products in the winding machine. Additionally, if a fully-wound yarn spindle product in the winding machine continues to wind, it may lead to tube bursting, rendering the yarn spindle products unusable and increasing their production cost.
The present disclosure provides a doffing scheduling method and apparatus for yarn spindle product, an electronic device and a storage medium to address or mitigate one or more technical issues in the prior art.
According to a first aspect, the present disclosure provides a doffing scheduling method for a yarn spindle product, applied in an automatic doffing system which is in connection with an AGV and an overhead rail doffing vehicle, the AGV and the overhead rail doffing vehicle being deployed in different vertical spaces within a target workshop, and including:
According to a second aspect, the present disclosure provides a doffing scheduling apparatus for a yarn spindle product, applied in an automatic doffing system which is in connection with an automated guided vehicle AGV and an overhead rail doffing vehicle, the AGV and the overhead rail doffing vehicle being deployed in different vertical spaces within a target workshop, and including:
According to a third aspect, provided is an electronic device, including: at least one processor; and a memory connected in communication with the at least one processor. The memory stores an instruction executable by the at least one processor, and the instruction, when executed by the at least one processor, enables the at least one processor to execute the method of any embodiment of the present disclosure.
According to a fourth aspect, provided is a non-transitory computer-readable storage medium storing a computer instruction thereon, and the computer instruction is used to cause a computer to execute the method of any embodiment of the present disclosure.
The technical solution provided by the disclosure includes at least the following beneficial effects that: based on the time-related information doffing the yarn spindle product in the winding machine, an AGV and/or an overhead rail doffing vehicle is selected to execute the winding task, such that the automatic doffing is completed by coordinating the AGV and the overhead rail doffing vehicle, thereby improving the doffing efficiency of the yarn spindle product in the winding machine, preventing the occurrence of tube bursting when a yarn spindle product continue to wind after being fully-wound, and reducing the production cost of the yarn spindle products.
It should be understood that the content described in this part is not intended to identify critical or essential features of embodiments of the present disclosure, nor is it used to limit the scope of the present disclosure. Other features of the present disclosure will be easily understood through the following description.
In the accompanying drawings, the same reference numbers represent the same or similar parts or elements throughout the accompanying drawings, unless otherwise specified. These accompanying drawings are not necessarily drawn to scale. It should be understood that these accompanying drawings only depict some embodiments provided according to the present disclosure, and should not be considered as limiting the scope of the present disclosure.
The present disclosure will be described below in detail with reference to the accompanying drawings. The same reference numbers in the accompanying drawings represent elements with identical or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the accompanying drawings are not necessarily drawn to scale unless specifically indicated.
In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementations. Those having ordinary skill in the art should understand that the present disclosure may be performed without certain specific details. In some examples, methods, means, elements and circuits well known to those having ordinary skill in the art are not described in detail, in order to highlight the subject matter of the present disclosure.
To facilitate understanding of the doffing scheduling method for yarn spindle products according to the embodiment of the present disclosure, the related technologies of the embodiments will be explained below. The related technologies as optional solutions can be combined with the technical solutions of the embodiments of the present disclosure, and all such combinations fall within the protection scope of the embodiments of the present disclosure.
Method 1: Completing the doffing task through manual labor results in low doffing efficiency and high labor costs.
Method 2: Completing the doffing task with an AGV is limited by their operating speed and path, which may result in delays in the reaching designated position to complete the task. This leads to lower doffing efficiency of yarn spindle products in the winding machine. Moreover, if a fully-wound yarn spindle product in the winding machine continues to wind, it may lead to tube bursting, rendering the yarn spindle products unusable and increasing their production costs.
In summary, both of the above methods for completing the doffing task, whether relying on manual labor or the AGV, result in lower doffing efficiency and higher production costs for the yarn spindle products.
In this embodiment of the disclosure, the automatic doffing system can obtain data transmitted from the winding machine, the AGV, and the overhead rail doffing vehicle. For example, the system can receive the time-related information regarding the yarn spindle product doffing, the quantity of yarn spindle products in the winding machine, and positional information of the AGV and overhead rail doffing vehicle. The automatic doffing system can also send instruction information to the winding machine, the AGV and the overhead rail doffing vehicle. For instance, the system can send a doffing instruction to the AGV and the overhead rail doffing vehicle, to schedule the AGV and the overhead rail doffing vehicle to travel to the winding machine to complete the doffing task.
Exemplarily, the AGV can travel freely on the ground without relying on a rail. Travelling mode of the overhead rail doffing vehicle involves providing a rail at a position of a certain height in the target workshop, allowing the vehicle to travel along the rail. The AGV and the overhead rail doffing vehicle travel independently. When the AGV and the overhead rail doffing vehicle reach a same position in the target workshop, the AGV and the overhead rail doffing vehicle do not collide or interfere with each other because they are deployed in different vertical spaces within the workshop.
Exemplarily, the target workshop may include multiple winding machines of the same type or different types. Yarn spindle products in different winding machines may correspond to different winding times, different process flows or different product types.
Exemplarily, each winding machine includes at least one type of yarn spindle product, where each spindle can include a paper tube and fibers wound around an outside of the paper tube. It can be understood that in this embodiment, the time-related information of doffing the yarn spindle product refers to a duration required for the fibers in the yarn spindle product to be completely wound in the winding machine and/or an anticipated time for doffing. The fibers can be chemical fiber filaments, such as POY (Pre-Oriented Yarn), FDY (Full Draw Yarn) and HOY (High Oriented Yarn).
Exemplarily, the target doffing vehicle can also be referred to as a trolley. The target doffing vehicle can be one of the AGV and the overhead rail doffing vehicle, or it can include both the AGV and the overhead rail doffing vehicle. For the yarn spindle products in each winding machine, the doffing task can be completed by one or more target doffing vehicles. For the entire workshop, each target doffing vehicle can complete the doffing tasks of the yarn spindle products from multiple winding machines.
In a practical application, the AGV and the overhead rail doffing vehicle can travel to the winding machine, where the winding machine pushes a yarn spindle product that has completed winding onto the AGV and the overhead rail doffing vehicle. After unloading the yarn spindle product that has completed winding from the winding machine, the AGV and the overhead rail doffing vehicle can place an empty paper tube at an empty spindle position of the winding machine to initiate winding of a new yarn spindle product. Subsequently, the AGV and the overhead rail doffing vehicle transport the yarn spindle product on board to a yarn receiving station.
According to the technical solution of this embodiment of the disclosure, the AGV and the overhead rail doffing vehicle can be deployed in different vertical spaces within the target workshop. Based on the time-related information of doffing the yarn spindle product in the winding machine, the AGV or the overhead rail doffing vehicle is selected to execute the doffing task. In this way, the automatic doffing process is completed through the collaboration of the AGV and the overhead rail doffing vehicle, thereby enhancing the doffing efficiency of the yarn spindle products in the winding machine and reducing the production costs of yarn spindle products.
In some embodiments, Step S110 of determining the target doffing vehicle corresponding to the first winding machine in the target workshop from the AGV and the overhead rail doffing vehicle based on the time-related information of doffing the yarn spindle product in all or part of the winding machines in the target workshop, as shown in
In this embodiment of the disclosure, due to lower energy consumption and cost of the AGV compared to the overhead rail doffing vehicle, it is preferentially determined whether the AGV can serve the first winding machine. If the AGV is capable of serving the first winding machine, only the AGV needs to travel to the winding machine and transport the yarn spindle products that have completed wind from the winding machine to the receiving station.
Exemplarily, the automatic doffing system, based on the time-related information of dropping the yarn spindle product in the winding machine, can take into account a current number of schedulable AGVs to predict whether the AGV can arrive at the corresponding position when the yarn spindle product in the first winding machine has completed winding, in order to complete the doffing task.
According to the technical solution of this disclosure, a judgment is made on whether the AGV can serve the first winding machine. In the event that the AGV can serve the first winding machine, the AGV could complete the doffing task of the yarn spindle product in the first winding machine, thereby further reducing the production costs of the yarn spindle products without affecting the doffing efficiency of the yarn spindle products.
In some embodiments, Step S110 of determining the target doffing vehicle corresponding to the first winding machine in the target workshop from the AGV and the overhead rail doffing vehicle based on the time-related information of doffing the yarn spindle product in all or part of the winding machines in the target workshop, as shown in
In this embodiment of the disclosure, the overhead rail doffing vehicle has a higher doffing efficiency, enabling it to complete the doffing task of the yarn spindle product in the first winding machine. According to the technical solution of the disclosure, the judgment is made on whether the AGV can serve the first winding machine. In the event that the AGV cannot serve the first winding machine, the overhead rail doffing vehicle could complete the doffing task of the yarn spindle product in the first winding machine. This eliminates the need for extended waiting time for the AGV and ensures timely completion of doffing tasks of yarn spindle products in the first winding machine, thereby further improving the doffing efficiency of the yarn spindle products in the winding machine.
In some embodiments, in the event that the AGV cannot serve the first winding machine, the quantity N of yarn spindle products doffed by the overhead rail doffing vehicle and the quantity M of yarn spindle products doffed by the AGV can be predicted based on time-related information of doffing yarn spindle products and/or quantity information of yarn spindle products in the winding machine, determining that the target doffing vehicle includes both the AGV and the overhead rail doffing vehicle which collaborate to complete the doffing task for the first winding machine. By completing the doffing task for M yarn spindle products using the AGV and completing the doffing task for N yarn spindle products using the overhead rail doffing vehicle, AGV's service capacity can be fully utilized. This ensures that all the doffing tasks for the yarn spindle products in the first winding machine are completed, while further reducing the production costs of yarn spindle products.
For example, when there are two yarn spindle products in the first winding machine and one slot is available for an AGV, the AGV can serve one yarn spindle product in the first winding machine, while the overhead rail doffing vehicle can serve the other yarn spindle product in the first winding machine.
In some embodiments, Step S210 of determining whether the AGV is able to serve the first winding machine based on the time-related information of doffing the yarn spindle product in all or part of the winding machines in the target workshop, includes:
Exemplarily, the winding duration of the yarn spindle product to be processed can be understood as a time duration required to complete a full winding of the yarn spindle product. If the winding duration of the yarn spindle product to be processed in each winding machine is short, the number of winding machines that the AGV can serve is fewer. Conversely, if the winding duration of the yarn spindle product to be processed in each winding machine is long, the number of winding machines that the AGV can serve is greater.
Exemplarily, in some scenarios, the AGV has a movement speed slower than the overhead rail doffing vehicle. Based on this, the winding machines closer to the yarn receiving station can be determined as the set of winding machines that are served by the AGV. Specifically, assuming that the number of winding machines that the AGV can serve is L, then the set of winding machines that are served by the AGV includes L winding machines that are closest to the yarn receiving station.
For example, as shown in
According to the technical solution of this disclosure, based on the winding duration of the yarn spindle products in each winding machine, the number of winding machines served by the AGV can be determined. This allows for the pre-assignment of doffing tasks for each winding machine to respective doffing vehicles, optimizing the use of AGV service capability based on production capacity. Simultaneously, the overhead rail doffing vehicle can be used for supplement, balancing cost and efficiency considerations. Furthermore, by leveraging a speed difference between the AGV and the overhead rail doffing vehicle, the AGV can be assigned to serve a nearer winding machine while the overhead rail doffing vehicle to serve a farther winding machine, thereby further improving doffing efficiency.
In an example, if the set of winding machines that are served by the AGV does not include the first winding machine, it is determined that the AGV cannot serve the first winding machine. In this scenario, the overhead rail doffing vehicle can serve the first winding machine and complete the doffing task of the yarn spindle product in the first winding machine. This enables to reduce the waiting time for the AGV, ensuring that all the doffing tasks of the yarn spindle products in the first winding machine are completed, thereby improving the doffing efficiency.
In some embodiments, Step S210 of determining whether the AGV is able to serve the first winding machine based on the time-related information of the doffing yarn spindle product in all or part of the winding machines in the target workshop, includes:
Exemplarily, the first preset duration refers to a preset duration threshold. The duration threshold can be configured by a user. For example, the first preset duration can be entered through input units in the automatic doffing system, such as a mouse or keyboard, or can be obtained from a user device connected to the automatic doffing system. In practical applications, the automatic doffing system or the user device can provide a user interface where the user can input the first preset duration.
Exemplarily, if a total number of yarn spindle products to be doffed in the second winding machine and yarn spindle products to be doffed in the first winding machine is less than or equal to the number of positions available for the AGV, and if the AGV can move from the position of the second winding machine to that of the first winding machine within the first preset duration, then the AGV can complete the doffing task of the yarn spindle products in the first winding machine. If the total number of the yarn spindle products to be doffed in the second winding machine and the yarn spindle products to be doffed in the first winding machine is less than or equal to the number of positions available for the AGV but the AGV cannot move from the position of the second winding machine to the position of the first winding machine within the first preset duration due to limit of its movement speed, then the automatic doffing system could schedule the overhead rail doffing vehicle to complete the doffing task of the yarn spindle products in the first winding machine. If the total number of the yarn spindle products to be doffed in the second winding machine and the yarn spindle products to be doffed in the first winding machine exceeds the number of positions available for the AGV, the automatic doffing system could schedule the overhead rail doffing vehicle to complete the doffing task for the yarn spindle products in the first winding machine.
According to the technical solution of this disclosure, when the time distance between the current time and the doffing time of the first winding machine is less than the first preset duration, AGV's ability to serve the first winding machine can be determined based on the following factors: the number of yarn spindle products to be doffed in the second winding machine, the number of yarn spindle products to be doffed in the first winding machine, the available positions for the AGV, and the distance between the AGV and the first winding machine. This ensures that all the doffing tasks for yarn spindle products in the first winding machine are completed promptly and efficiently.
In some embodiments, Step S210 of determining whether the AGV is able to serve the first winding machine based on the time-related information of doffing the yarn spindle product in all or part of the winding machines in the target workshop, includes:
Exemplarily, time distances between the estimated time for each doffing in each winding machine and the current time can be sorted to determine the doffing time list within the target period. For instance, the list can be arranged in an ascending order of the time distances between the estimated times and the current time.
Exemplarily, the second preset duration is a preset duration threshold. This duration threshold can be configured by the user. For instance, the first preset duration can be entered through input units in the aforementioned automatic doffing system, such as a mouse or keyboard, or can be obtained a user device connected to the automatic doffing system. In practical applications, the automatic doffing system or the user device can provide a user interface where the user can input the second preset duration.
Exemplarily, in the case where K winding machines includes the first winding machine, and based on the distance between the first winding machine and the yarn receiving station, it is determined that the AGV cannot serve the first winding machine, due to the AGV's slower movement speed compared to the overhead rail doffing vehicle, the AGV will complete a doffing task of a yarn spindle product in a winding machine closer to the yarn receiving station in the first winding machines while the overhead rail doffing vehicle will complete a doffing task of a yarn spindle product in a winding machine farther from the yarn receiving station in the first winding machines.
For example, Table 1 represents the doffing time list of yarn spindle products in the winding machines.
The time-related information of doffing the yarn spindle product in the winding machine can include winding duration, remaining time, and doffing time. Based on the winding duration and remaining time, the estimated time can be determined. When the second preset duration is 1 minute, the time interval between the estimated time of Winding machine No. 1 and Winding machine No. 6 is 12 seconds, which is less than the second preset duration. In this case, the AGV cannot complete the doffing tasks for both windings, and thus the tasks can be completed by the cooperation of the AGV and the overhead rail doffing vehicle. In practical applications, since the AGV is slower than the overhead rail doffing vehicle, the AGV can complete the doffing task for the winding machine that is closer to the yarn receiving station. Specifically, because Winding machine No. 1 is closer to the yarn receiving station, the AGV will handle the doffing task of the yarn spindle product in Winding machine No. 1, while the overhead rail doffing vehicle will handle the doffing task of the yarn spindle product in Winding machine No. 6.
According to the technical solution of the present disclosure, by the doffing time list including multiple doffing times and the winding machine corresponding to each of the multiple doffing times, it can be further determined whether the AGV is capable of serving the first winding machine.
Exemplarily, for such a winding machining with a longer doffing time interval, the doffing task can be performed by the AGV. That is, for other winding machines in the target workshop other than the K winding machines, it can be determined that the corresponding doffing vehicle is the AGV. For example, for Winding machines Nos. 2-5 in Table 1, since the estimated doffing time intervals are relatively long, the AGV can complete the doffing tasks for all of them.
In some embodiments, Step S120 of scheduling the target doffing vehicle to complete the doffing task of the yarn spindle product in the first winding machines includes:
According to the technical solution of the present disclosure, since the AGV can travel on the ground without a rail, the travel route for each AGV can be planned. This can prevent collisions and mutual interference between multiple AGVs, thereby reducing issues of doffing efficiency for yarn spindle products in the winding machines.
In some embodiments, Step S120 of scheduling the target doffing vehicle to complete the doffing task of the yarn spindle product in the first winding machine includes:
According to the technical solution of the present disclosure, the travel route for each overhead rail doffing vehicle can be planned. This can prevent collisions and mutual interference between multiple overhead rail doffing vehicles, thereby reducing issues of doffing efficiency for yarn spindle products in the winding machines.
According to the embodiment of this disclosure, this disclosure also provides a doffing scheduling apparatus for yarn spindle product.
In some embodiments, as shown in
In some embodiments, the first determination module 410 further includes:
In some embodiments, the AGV has a travel speed slower than the overhead rail doffing vehicle; and the second determination submodule 510 is configured to:
In some embodiments, the second determination submodule 510 is configured to:
In some embodiments, the second determination submodule 510 is configured to:
In some embodiments, the scheduling module 420 is configured to:
In some embodiments, the scheduling module 420 is configured to:
Descriptions of the specific functions and examples of each module and submodule of the apparatus according to the embodiment of the present disclosure may refer to related descriptions of corresponding steps of the above method embodiments, and will not be repeated here.
If the memory 610, the processor 620, and the communication interface 630 are implemented independently, the memory 610, the processor 620, and the communication interface 630 may be connected to each other and communicate with each other through a bus. The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is used to represent the bus in
Alternatively, in terms of specific implementation, if the memory 610, the processor 620, and the communication interface 630 are integrated on a single chip, the memory 610, the processor 620, and the communication interface 630 may communicate with each other through internal interfaces.
It should be understood that the above processor may be a Central Processing Unit (CPU), or may be another general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or another programmable logic device, a discrete gate or a transistor logic device, a discrete hardware component, or the like. The general-purpose processor may be a microprocessor or any conventional processor. It is worth noting that processor may be a processor that supports an Advanced RISC Machine (ARM) architecture.
Further, alternatively, the above memory may include a read-only memory and a random access memory, as well as a non-volatile random access memory. The memory may be either a volatile memory or a non-volatile memory, or may include both the volatile memory and the non-volatile memory. The non-volatile memory may include a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash memory. The volatile memory may include a Random Access Memory (RAM), which is used as an external cache. Many forms of the RAM are available through illustrative but not restrictive explanations, for example, a Static Random Access Memory (SRAM), a Dynamic Random Access Memory (DRAM), a Synchronous Dynamic Random Access Memory (SDRAM), a Double Data Rate Synchronous Dynamic Random Access Memory (DDR SDRAM), an Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), a Synchlink DRAM (SLDRAM) and a Direct RAMBUS RAM (DR RAM).
In the above embodiments, it may be fully or partially implemented through software, hardware, firmware, or any combination thereof. When implemented using the software, it may be fully or partially implemented in a form of a computer program product. The computer program product includes one or more computer instructions. When loading and executing the computer instructions on a computer, all or part of the processes or functions described in the embodiments of the present disclosure are generated. The computer may be a general-purpose computer, a specialized computer, a computer network, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from a website, a computer, a server or a data center to another website site, computer, server, or data center through a wired (such as a coaxial cable, an optical fiber, a Digital Subscriber Line (DSL)) or wireless (such as infrared, Bluetooth, microwave, or the like) manner. The computer readable storage medium may be any available medium that the computer may access, or a data storage device such as a server or data center that includes one or more integrated available medium. The available medium may be a magnetic medium (such as a floppy disk, a hard drive, a magnetic tape), an optical medium (such as a Digital Versatile Disc (DVDs)), or a semiconductor medium (such as a Solid State Disk (SSDs)), or the like. It is worth noting that the computer readable storage medium mentioned in this disclosure may be the non-volatile storage medium, in other words, it may be a non-transient storage medium.
Those having ordinary sill in the art may understand that all or part of the steps to implement the above embodiments may be completed through hardware, or by instructing relevant hardware through programs. The programs may be stored in the computer readable storage medium, which may be a read only memory, a magnetic disk, an optical disk, or the like.
In the description of the embodiments of the present disclosure, reference terms “one embodiment”, “some embodiments”, “examples”, “specific examples”, “some examples”, or the like mean that specific features, structures, materials, or characteristics described in combination with an embodiment or example are included in at least one embodiment or example of the present disclosure. Moreover, the specific features, structures, materials, or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. In addition, those having ordinary skill in the art may integrate and combine different embodiments or examples described in the specification, as well as features of different embodiments or examples, without mutual contradiction.
In the description of the embodiments of the present disclosure, “/” means or, unless otherwise specified. For example, “A/B” means A or B. “And/or” herein only an association relationship for describing associated objects, means there are three relationships. For example, “A and/or B” may means there is only A, there is both A and B, and there is only B.
In the description of the embodiments of the present disclosure, terms “first” and “second” are only used for a descriptive purpose and cannot be understood as indicating or implying relative importance or implying the quantity of the indicated technical features. Therefore, features limited to “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present disclosure, unless otherwise specified, the meaning of “a plurality of” refers to two or more.
The foregoing is only exemplary embodiments of the disclosure and are not intended to limit thereto. Any modification, equivalent replacement, improvement, and the like made within the spirit and principles of the disclosure shall be included within the scope of protection of the disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202311158904.2 | Sep 2023 | CN | national |
