Storage yard unloading method and device based on Beidou positioning system

Abstract

The invention provides a storage yard unloading method and device based on a Beidou positioning system, and the method comprises the steps: obtaining the positioning information of a plurality of to-be-unloaded carriers and material piles corresponding to different material types in a material storage yard, and the positioning information is determined based on the Beidou positioning system; based on the material types of the to-be-unloaded carriers and the positioning information, the unloading distance between each to-be-unloaded carrier and the corresponding material pile is determined; based on the weight or the number of the materials in the to-be-unloaded carriers, the unloading duration needed for completing unloading is determined; and optimization is carried out based on the unloading distance and the unloading duration, so that the time for sequentially completing unloading by the unloading carriers is optimal, an unloading time sequence table is obtained, and the unloading action is completed based on the unloading time sequence table. The storage yard material management efficiency can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of intelligent production applications, and in particular to a yard unloading method and device based on a Beidou positioning system. Background Art

[0002] At present, some large ports or storage bases are faced with the problems of complicated types of loading and unloading materials, unreasonable planning of loading and unloading process, resulting in long waiting time, and large deviations in loading and unloading positions. The traditional way is to coordinate and dispatch manually, which has low scheduling efficiency and is prone to human misjudgment, resulting in the inability to complete the loading and unloading of individual materials in a timely manner. Summary of the invention

[0003] In view of the above problems existing in the prior art, the present invention proposes a yard unloading method and device based on the Beidou positioning system, which mainly solves the problem that the existing material unloading is inefficient and relies on manual scheduling, affecting the rhythm of production management.

[0004] In order to achieve the above purpose and other purposes, the technical solution adopted by the present invention is as follows.

[0005] The present application provides a material yard unloading method based on the Beidou positioning system, comprising: obtaining positioning information of a plurality of vehicles to be unloaded and corresponding material piles of different material types in a material yard, wherein the positioning information is determined based on the Beidou positioning system; determining the unloading distance between each of the vehicles to be unloaded and the corresponding material pile based on the material type of the vehicle to be unloaded and the positioning information; determining the unloading time required to complete the unloading based on the weight or quantity of the material in each of the vehicles to be unloaded; optimizing based on the unloading distance and the unloading time so that the time for each of the unloading vehicles to complete the unloading in sequence is optimal, and obtaining an unloading timing table, so as to complete the unloading action based on the unloading timing table.

[0006] In one embodiment of the present application, the carrier to be unloaded is unloaded through a belt conveyor system, and the belt conveyor system connects the carrier to be unloaded and the material pile.

[0007] In one embodiment of the present application, before determining the unloading distance between each carrier to be unloaded and the corresponding material pile based on the material type of the carrier to be unloaded and the positioning information, the following steps are also included: collecting images of each carrier to be unloaded; extracting features in the image to correspond to the material type, and matching the unloading material pile based on the material type.

[0008] In one embodiment of the present application, the unloading distance between each carrier to be unloaded and the corresponding material pile is determined based on the material type of the carrier to be unloaded and the positioning information, including: sorting the material piles of the same material type based on the current material reserves to obtain a first sequence; calculating the distance from the carrier to be unloaded to each material pile in the first sequence based on the positioning information, and using the distance as a weight to weight the order of each material pile in the first sequence to obtain a second sequence; determining the unloading material pile according to the second sequence, and using the distance between the unloading material pile and the carrier to be unloaded as the unloading distance.

[0009] The present application also provides a yard unloading device based on the Beidou positioning system, including: a positioning information acquisition module, used to obtain the positioning information of multiple vehicles to be unloaded and corresponding material piles of different material types in the material yard, and the positioning information is determined based on the Beidou positioning system; a distance calculation module, used to determine the unloading distance between each vehicle to be unloaded and the corresponding material pile based on the material type of the vehicle to be unloaded and the positioning information; an unloading time evaluation module, used to determine the unloading time required to complete the unloading based on the weight or quantity of the material in each vehicle to be unloaded; an unloading management module, used to optimize based on the unloading distance and the unloading time, so that the time for each unloading vehicle to complete the unloading in sequence is optimal, and an unloading timing table is obtained to complete the unloading action based on the unloading timing table.

[0010] In one embodiment of the present application, the device further includes a display terminal, and the display terminal is used to display the positioning information and the unloading schedule.

[0011] As described above, the present application proposes a yard unloading method and device based on the Beidou positioning system, which has the following beneficial effects.

[0012] This application uses the Beidou positioning system to accurately locate vehicles and equipment in material yards, and can obtain accurate positioning information, which is convenient for subsequent loading and unloading based on the accurate positioning information, thereby improving the control accuracy of material loading and unloading. At the same time, the loading and unloading position and distance are determined based on the material type and positioning information, and the unloading time is planned based on the material weight to ensure that the unloading time of each vehicle is optimized, avoiding long-term detention of the vehicle due to excessive unloading time, which affects the material loading and unloading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a flow chart of a method for unloading materials in a storage yard based on the Beidou positioning system in one embodiment of the present application.

[0014] Figure 2 This is a module diagram of a yard unloading device based on the Beidou positioning system in one embodiment of the present application. DETAILED DESCRIPTION

[0015] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0016] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0017] See also Figure 1 , Figure 1 The flowchart of the method for unloading materials in a yard based on the Beidou positioning system in one embodiment of the present application is as follows. The method in the embodiment of the present application includes:

[0018] Step S100, obtaining positioning information of a plurality of vehicles to be unloaded and corresponding material piles of different material types in a material yard, wherein the positioning information is determined based on a Beidou positioning system.

[0019] In one embodiment, the material yard can be a scene such as a port or a logistics center where frequent material loading and unloading is required. The specific method can be determined according to the actual application requirements and is not limited here. Taking the port as an example, the vehicle to be unloaded can be a cargo ship carrying cargo, and each type of material is piled together to form a corresponding material pile. The Beidou positioning system can collect positioning information of material piles in the port, ships entering the port, and belt conveyor systems in the port, and feed the positioning information back to the material management system in the port. The port area boundary can be set to accurately locate each device and material within the boundary.

[0020] In one embodiment, the carrier to be unloaded is unloaded through a belt conveyor system, and the belt conveyor system docks the carrier to be unloaded and the material pile. Specifically, after the carrier to be unloaded enters the corresponding area of ​​the material yard, it can dock with the belt conveyor system to transfer the loaded goods to the conveyor belt of the belt conveyor system, and the belt conveyor system will transfer the acquired goods to the corresponding material pile, and the stacker-reclaimer will stack the materials on the belt conveyor to the corresponding position of the material pile. Similarly, during the loading process, the stacker-reclaimer can also transfer the materials in the material pile to the belt conveyor system, and the belt conveyor system will transfer the materials to the corresponding carrier to complete the loading.

[0021] Step S110, determining the unloading distance between each of the carriers to be unloaded and the corresponding material pile based on the material type of the carriers to be unloaded and the positioning information.

[0022] In one embodiment, before determining the unloading distance between each carrier to be unloaded and the corresponding stockpile based on the material type of the carrier to be unloaded and the positioning information, the following steps are also included: collecting images of each carrier to be unloaded; extracting features in the image to correspond to the material type, and matching the stockpile to be unloaded based on the material type. Specifically, an image acquisition device can be installed in the material yard, and the image acquisition device can be used to collect pictures of the stockpile and the carrier. The type of material in the stockpile and the volume of the accumulated material in the stockpile can be identified based on the picture of the stockpile. The type of material loaded in the carrier and the capacity of the carrier can be identified through the picture of the carrier. The image recognition process can be implemented based on a recognition model pre-trained by a deep learning neural network. The specific model training process is a conventional technical means in this field and will not be repeated here. Through image recognition, the material type in the carrier to be unloaded can be matched with the material type in the stockpile, and then the relative position of the materials can be determined. Of course, the volume of the material already stacked in the stockpile can also be used to determine the stockpile to be unloaded. In order to avoid affecting the smooth unloading process when the material pile is fully loaded, multiple material piles of the same type can be obtained at the same time as spare unloading material piles. When one of the material piles is full, the material can be transferred to the spare unloading material pile to continue unloading.

[0023] In one embodiment, the unloading distance between each carrier to be unloaded and the corresponding stockpile is determined based on the material type of the carrier to be unloaded and the positioning information, including: sorting the stockpiles of the same material type based on the current material reserves to obtain a first sequence; calculating the distance from the carrier to be unloaded to each stockpile in the first sequence based on the positioning information, and weighting the order of each stockpile in the first sequence using the distance as a weight to obtain a second sequence. Specifically, the material reserves in each stockpile are obtained based on image recognition, and the stockpile is sorted from high to low according to the amount of material currently acceptable to the stockpile to obtain a first sequence. Then, the distance from the carrier to be unloaded to each stockpile in the first sequence is calculated, and the distance is weighted with the sequence number in the first sequence to obtain a second sequence. One or more stockpiles sorted first in the second sequence are used as unloading stockpiles.

[0024] Step S120, determining the unloading time required to complete the unloading based on the weight or quantity of the materials in each of the carriers to be unloaded;

[0025] The weight or quantity of the material in the carrier to be unloaded is obtained through image recognition. The weight and quantity can be estimated based on the material type and volume obtained by image recognition. Different types of materials correspond to different densities. The weight and quantity information can be determined by density and volume. Then the time required to complete the unloading is estimated. The loading process can also estimate the length of time for loading based on the capacity of the carrier. The specific calculation process will not be repeated here.

[0026] Step S130, optimizing based on the unloading distance and the unloading time, so that the time for each unloading vehicle to complete unloading in sequence is optimal, and an unloading timing table is obtained to complete the unloading action based on the unloading timing table.

[0027] In one embodiment, the unloading time can be optimized by an optimization algorithm, and the number of optimization samples is the number of vehicles currently waiting for unloading. The optimization algorithm can adopt a simulated annealing algorithm, a deep learning optimization algorithm, etc., which can be selected and adjusted according to the actual production application needs, and there is no restriction here. In the optimization process, the optimization function is constructed with the least time, and the specific optimization calculation process can be adjusted according to the adopted algorithm, and there is no restriction here. After the optimization is completed, the unloading schedule of each vehicle to be unloaded can be obtained, and the unloading can be completed in the order of the schedule, which can effectively improve the efficiency of material management.

[0028] See also Figure 2 , Figure 2 This is a module diagram of a yard unloading device based on the Beidou positioning system in an embodiment of the present application. The device includes: a positioning information acquisition module 20, which is used to obtain the positioning information of multiple unloading vehicles and corresponding material piles of different material types in the material yard, and the positioning information is determined based on the Beidou positioning system; a distance calculation module 21, which is used to determine the unloading distance between each of the unloading vehicles and the corresponding material pile based on the material type of the unloading vehicle and the positioning information; an unloading time evaluation module 22, which is used to determine the unloading time required to complete the unloading based on the weight or quantity of the material in each of the unloading vehicles; an unloading management module 23, which is used to optimize based on the unloading distance and the unloading time, so that the time for each of the unloading vehicles to complete the unloading in sequence is optimal, and an unloading time sequence table is obtained to complete the unloading action based on the unloading time sequence table.

[0029] In one embodiment, the device further comprises a display terminal, which is used to display the positioning information and the loading and unloading schedule. The display terminal can display the real-time status of each carrier, the material in the stockpile, and the unloading schedule, so that on-site personnel can understand the operation of the yard according to the displayed information and handle emergencies.

[0030] The specific operation process of the device has been described in detail in the above method embodiment, and will not be repeated here.

[0031] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A method for unloading materials in a storage yard based on Beidou positioning system, characterized in that: include: Obtaining the positioning information of multiple unloading vehicles and material piles corresponding to different material types in the material yard, wherein the positioning information is determined based on the Beidou positioning system; Determine the unloading distance between each of the unloading vehicles and the corresponding material pile based on the material type of the unloading vehicle and the positioning information; Determining the unloading time required to complete the unloading based on the weight or quantity of the materials in each of the carriers to be unloaded; Based on the unloading distance and the unloading time, optimization is performed so that the time for each unloading vehicle to complete unloading in sequence is optimal, and an unloading timing table is obtained to complete the unloading action based on the unloading timing table.

2. The method for unloading materials in a storage yard based on the Beidou positioning system according to claim 1, characterized in that: The carrier to be unloaded is unloaded through a belt conveyor system, and the belt conveyor system is connected to the carrier to be unloaded and the material pile.

3. The method for unloading materials in a storage yard based on Beidou positioning system according to claim 1, characterized in that: Before determining the unloading distance between each of the unloading carriers and the corresponding material pile based on the material type of the unloading carrier and the positioning information, the following steps are also included: Collecting images of each of the carriers to be unloaded; Features in the image are extracted to identify corresponding material types, and a stockpile for unloading is matched based on the material types.

4. The method for unloading materials in a storage yard based on Beidou positioning system according to claim 1, characterized in that: Determining the unloading distance between each of the unloading carriers and the corresponding material pile based on the material type of the unloading carrier and the positioning information includes: Based on the current material reserves, the stockpiles of the same material type are sorted to obtain a first sequence; Calculating the distance between the unloading vehicle and each material pile in the first sequence based on the positioning information, and weighting the order of each material pile in the first sequence using the distance as a weight to obtain a second sequence; A material pile for unloading is determined according to the second sequence, and a distance between the material pile for unloading and the vehicle to be unloaded is used as the unloading distance.

5. A yard unloading device based on Beidou positioning system, characterized in that: include: A positioning information acquisition module is used to obtain the positioning information of multiple unloading vehicles and material piles corresponding to different material types in the material yard, and the positioning information is determined based on the Beidou positioning system; A distance calculation module, used to determine the unloading distance between each carrier to be unloaded and the corresponding material pile based on the material type of the carrier to be unloaded and the positioning information; A discharge time evaluation module, used to determine the discharge time required to complete the discharge based on the weight or quantity of the materials in each of the carriers to be discharged; The unloading management module is used to optimize based on the unloading distance and the unloading time so that the time for each unloading vehicle to complete unloading in sequence is optimal, and to obtain a unloading timing table to complete the unloading action based on the unloading timing table.

6. The storage yard unloading device based on Beidou positioning system according to claim 5 is characterized in that: The device also includes a display terminal, which is used to display the positioning information and the unloading schedule.

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