Optimization Method for Material Allocation Based on the Material Receiving Map of Power Grid Projects

Abstract

The present invention provides a method for optimizing material allocation based on the material receiving map of power grid projects, belonging to the technical field of power grid project management. The specific control method is as follows: generate a first receiving map; determine the receiving location and delivery time corresponding to the target materials, generate a delivery route, and predict the corresponding arrival time; execute the delivery of the target materials, and in real time, based on the materials already delivered for the current target power project, predict the material information at each receiving location at the corresponding arrival time, generate a second receiving map at the corresponding arrival time in real time, and update it according to the first receiving map; based on the updated second receiving map, determine whether the location replacement condition is met; when the location replacement condition is met, based on the second receiving map, regenerate the delivery route of the target materials. The present invention realizes real-time control of the delivery process of target materials through accurate material information corresponding to the receiving time, ensuring the control efficiency and control accuracy of power project materials.

Description

Technical Field

[0001] The present invention relates to the technical field of power grid project management, and in particular to an optimization method for material allocation based on the receiving map of power grid project materials. Background Art

[0002] In the implementation process of power grid projects, material management is a crucial link. The effective management and timely distribution of materials are directly related to the progress, cost, and quality of engineering projects. For the traditional management of power grid project materials, most rely on manual monitoring of the reserve situation of each material to achieve corresponding material management and scheduling. However, manually formulating a distribution plan requires a large amount of time and effort. In the case of a growing number of material types and scattered distribution locations in power grid projects, it may take a long time to formulate a reasonable plan, resulting in low material management efficiency.

[0003] With the development of information technology, especially the integration of geographic information systems (GIS) and logistics management technology, the receiving map of power grid project materials has gradually become one of the important tools for power grid project material management. By establishing a receiving map of power grid project materials, the locations of each receiving point and the material demand situation can be intuitively displayed, realizing real-time update and sharing of material information, effectively improving material management efficiency, and achieving orderly distribution of materials at each receiving location.

[0004] However, during the management and distribution of power grid project materials, only after corresponding arrival acceptance, warehousing management, etc. are completed, can the update of the corresponding material status be realized on the receiving map of power grid project materials. The resulting lag in the update of material information on the receiving map of power grid project materials will lead to the inability to identify abnormal situations in a timely manner, which will directly affect the material control efficiency, and may result in problems such as material inventory accumulation and inability to accept materials into the warehouse in a timely manner, causing waste of resources and stagnation of project progress. Summary of the Invention

[0005] The purpose of the present invention is to overcome the drawback that when using the receiving map of power grid project materials for material control in the prior art, there is a lag in the update of material information on the receiving map of power grid project materials, and the control efficiency of power project materials cannot be guaranteed. The present invention provides an optimization method for material allocation based on the receiving map of power grid project materials. On the basis of generating a first receiving map to guide the formulation of the corresponding material distribution path, a second receiving map that is not restricted by material operations for information update is generated in real time according to the distribution situation of other delivered materials of the current target power project, and it is updated and corrected according to the first receiving map. Furthermore, the distribution process of the target materials is monitored in real time according to the accurate material information of the corresponding receiving location at the corresponding receiving time in the second receiving map, while ensuring the control efficiency and control accuracy of power project materials, and ensuring the smooth implementation of power projects.

[0006] The object of the present invention is achieved by the following technical solutions:

[0007] A method for optimizing the allocation of materials based on the receiving map of power grid project materials, comprising:

[0008] Taking each receiving location of the power grid project materials in the target power project as nodes, generating a first receiving map;

[0009] Setting the target materials for the current delivery, determining the corresponding receiving location and delivery time, generating the delivery path of the target materials, and predicting the corresponding arrival time;

[0010] Executing the delivery of the target materials according to the delivery path, and in real time predicting the material information at each receiving location at the corresponding arrival time based on the materials already delivered in the current target power project, and generating a second receiving map at the corresponding arrival time in real time;

[0011] Obtaining the material status update information of each receiving location in the first receiving map, and updating the prediction result of the materials in transit in the second receiving map based on the material status update information;

[0012] Based on the updated second receiving map, determining whether the location replacement condition is satisfied;

[0013] When the location replacement condition is satisfied, regenerating the delivery path of the target materials based on the second receiving map.

[0014] Taking each receiving location of the target power project as nodes, establishing a first receiving map showing the location of the receiving location and the material demand situation, and guiding the formulation of the corresponding material delivery path by generating the first receiving map to improve the material control efficiency of the target power project. During the delivery process, in order to avoid the influence of the lag of material information update on the accuracy of the material information in the first receiving map, a second receiving map is generated in real time according to the delivery situation of other materials already delivered in the current target power project. Among them, the material information in the second receiving map is the prediction result obtained according to the delivery situation of the delivered materials, and the update of its material status is not restricted by material operations, and the display content of the second receiving map is further updated and corrected by the actual data shown in the first receiving map to ensure that the prediction result in the second receiving map can be closer to the actual situation, so as to more accurately reflect the material information at the corresponding receiving location at the corresponding receiving time. Subsequently, the delivery process of the target materials is controlled in real time through the second receiving map, abnormal situations can be identified in time, and then adjustments can be made in time, ensuring the accuracy of the material control of the power project and ensuring the smooth implementation of the power project.

[0015] Further, the step of taking each receiving location of the power grid project materials in the target power project as nodes and generating a first receiving map includes:

[0016] Determine the construction location in the target power project according to the construction content of the target power project;

[0017] Based on the construction location and the corresponding construction content, set the corresponding receiving location and the type of stored materials;

[0018] Cluster the receiving locations according to the type of stored materials and the corresponding construction content, and set the reserve level of each receiving location according to the clustering result;

[0019] Taking each receiving location as a node, generate the first receiving map according to the corresponding position coordinates, and set the display information of each node on the first receiving map according to the corresponding reserve level.

[0020] Further, the steps of setting the target materials for the current delivery, determining the corresponding receiving location and delivery time, generating the delivery path of the target materials, and predicting the corresponding receiving time include:

[0021] Based on the target power project, determine the receiving location of the target materials for the current delivery;

[0022] Generate the delivery path of the target materials according to the delivery starting point location and the receiving location of the target materials;

[0023] Predict the arrival time of the target materials at the receiving location according to the delivery time, delivery path and corresponding delivery influencing factors on the delivery path;

[0024] According to the type of target materials, obtain the corresponding receiving habit information of the corresponding receiving location;

[0025] Determine the receiving time of the target materials at the corresponding receiving location according to the arrival time of the target materials and the corresponding receiving habit information.

[0026] Further, the steps of executing the delivery of the target materials according to the delivery path, and predicting the material information of each receiving location at the corresponding arrival time in real time based on the delivered materials of the current target power project, and generating the second receiving map at the corresponding arrival time in real time include:

[0027] Obtain the material status of the delivered materials of the current target power project, screen out the in-transit materials with the material status of "in transit" among the delivered materials, and obtain the corresponding arrival time and receiving time;

[0028] Based on the arrival time and receiving time of the in-transit materials, predict the material information of each receiving location at the corresponding arrival time of the target materials;

[0029] Match each receiving location with the first receiving map, set the display information of each receiving location according to the predicted material information for each receiving location, and generate the second receiving map.

[0030] Further, predicting the material information of each receiving location at the corresponding receiving time based on the arrival time and receiving time of the materials in transit includes:

[0031] Compare the receiving time of the materials in transit with the arrival time of the target materials, and take the materials in transit with the receiving time earlier than the arrival time as the first received materials;

[0032] Compare the arrival time of the remaining materials in transit and the receiving time with the arrival time of the target materials, and take the materials in transit with the arrival time earlier than the arrival time of the target materials and the receiving time later than the arrival time of the target materials as the second received materials;

[0033] Obtain the material call information of the power project at the corresponding arrival time of the target materials;

[0034] According to the material quantities of the first received materials and the second received materials, obtain the remaining inventory of material reception and the receiving and acceptance capabilities of each receiving location, and determine the material information of each receiving location at the arrival time of the target materials.

[0035] The inventory acceptance capabilities and acceptance capabilities of each receiving location for materials are different, and the starting positions of each material delivery may be different. Moreover, each receiving location needs to conduct sequential acceptance according to the corresponding arrival time. Therefore, the specific warehousing data is not used as the material information, but the corresponding materials that will affect the receipt of the target materials are screened and counted to ensure the accuracy of the material information of each receiving location, and thus ensure the accuracy of the subsequent second receiving map. And not only will the material changes in each link during the material storage process affect the receiving capabilities of each receiving location for the target materials, but the changes in material calls will also affect the receiving capabilities of the target materials. Therefore, the corresponding remaining inventory of acceptance and the receiving and acceptance capabilities are determined based on the corresponding information of material storage and material calls, and then the second receiving map is generated, and the corresponding traffic conditions are marked on the second receiving map. From multiple perspectives, it is ensured that the second receiving map can comprehensively display the relevant influencing factor information for the delivery of the target materials, and ensure the accuracy of the subsequent control of the target materials based on the second receiving map.

[0036] Further, when implementing the delivery of the target materials according to the delivery route, and predicting the material information of each receiving location at the corresponding receiving time in real time based on the materials already delivered in the current target power project, generating the second receiving map at the corresponding arrival time in real time, and correcting it according to the first receiving map, it further includes:

[0037] Obtain the material call information of the power project at the corresponding arrival time of the target materials;

[0038] Based on the material information corresponding to the corrected target material receiving time in the first receiving map, obtain the remaining inventory of materials received at each receiving location and the receiving and inspection capabilities.

[0039] Match each receiving location with the first receiving map, and update the display information of each receiving location according to the corresponding remaining inventory received and the receiving and inspection capabilities, and generate a second receiving map.

[0040] Furthermore, obtaining the updated information on the material status of each receiving location in the first receiving map and updating the prediction results of the materials in transit in the second receiving map based on the updated information on the material status includes:

[0041] Obtain the updated information on the material status of each receiving location in the first receiving map, and screen out the deviation materials with deviations in arrival time.

[0042] Obtain the departure time and delivery route of the deviation materials, and obtain the correlation degree between the materials in transit in the second receiving map and the deviation materials according to the departure time and the delivery route.

[0043] According to the corresponding correlation degree and the deviation time of the deviation materials in arrival time, update the arrival time and receiving time of each material in transit.

[0044] Based on the updated arrival time and receiving time of each material in transit, update the material information of each receiving location in the second receiving map at the corresponding arrival time of the target material.

[0045] Considering that the delivery time will have certain deviations due to various factors on the delivery route, this part of the deviation will not only affect the delivery of a single material, but also affect the delivery of materials with adjacent times or similar delivery routes, and the degree of influence will deviate with the similarity of the departure time and the delivery route. This leads to a certain deviation between the prediction results on the second receiving map and the actual situation. Therefore, in order to further improve the accuracy of the prediction data on the second receiving map, according to the deviation situation on the first receiving map, the delivery prediction results of the materials affected on the second receiving map are correspondingly updated.

[0046] Furthermore, determining whether the location replacement condition is met based on the updated second receiving map includes:

[0047] Based on the updated second receiving map, identify the remaining inventory of materials received for the target material at the expected arrival time at the receiving location corresponding to the target material, and compare it with the quantity of the target material.

[0048] When the receiving capacity of the receiving location for the target material is lower than the quantity of the target material, it is determined that the location replacement condition is met.

[0049] When the acceptance capacity of the target materials at the receiving location is not less than the quantity of the target materials, identify the receiving and inspection capacity of the receiving location, and calculate the latest receiving time of the target materials according to the receiving and inspection capacity of the receiving location;

[0050] When the latest receiving time of the target materials is later than the receiving time set in the target power project, it is determined that the location replacement condition is met.

[0051] Further, the regenerating the delivery path of the target materials based on the second receiving map includes:

[0052] Based on the second receiving map, taking the lowest location replacement cost and the lowest receiving time deviation as the objective function, and the traffic condition, the reserve level and the receiving and inspection capacity as the constraint conditions, construct an optimization model for the receiving location of the target materials;

[0053] Obtain the optimal receiving location of the target materials according to the receiving location optimization model;

[0054] Based on the optimal receiving location of the target materials, regenerate the delivery path of the target materials.

[0055] Further, the regenerating the delivery path of the target materials based on the optimal receiving location of the target materials includes:

[0056] Obtain the current location of the target materials, and select a path adjustment node according to the delivery path of the target materials;

[0057] Taking the path adjustment node as the starting point and the optimal receiving location as the end point, regenerate the delivery path of the target materials.

[0058] When the predetermined receiving location is affected by other delivered materials and cannot receive the target materials normally, or even if it can receive the target materials, the receiving time will be too late, etc., it is determined that the location replacement condition is met, so as to be able to replace the receiving location of the target materials in time, ensure the normal storage of the target materials, and avoid affecting the project progress. And it is possible to optimize the replaced receiving location from the aspects of location replacement cost and receiving time deviation, and then regenerate the delivery path of the target materials to reduce the cost of replacing the location and the resulting receiving time deviation.

[0059] Further, it further includes:

[0060] According to the location information of each receiving location, set corresponding location replacement cut-off nodes on the delivery path of the target materials;

[0061] When executing the delivery of the target materials according to the delivery path, and when the target materials reach the corresponding location replacement cut-off node, stop the update of the second receiving map and the judgment of the location replacement condition.

[0062] The beneficial effects of the present invention are as follows:

[0063] (1) Taking each receiving location of the target power project as a node, a first receiving map is established to display the location of the receiving location and the material demand situation, and by generating the first receiving map, it is used to guide the formulation of the corresponding material distribution path, so as to improve the material control efficiency of the target power project. During the distribution process, in order to avoid the impact of the lag in material information update on the material control efficiency in the first receiving map, a second receiving map is generated in real time according to the distribution situation of other distributed materials in the current target power project. Among them, the material information in the second receiving map is the prediction result obtained according to the distribution situation of the distributed materials, and the update of its material status is not restricted by material operations, and the display content of the second receiving map is further updated and corrected by the actual data displayed in the first receiving map, so as to ensure that the prediction result in the second receiving map can be closer to the actual situation, and thus can more accurately reflect the material information of the corresponding receiving location at the corresponding receiving time. Subsequently, the distribution process of the target material is monitored in real time through the second receiving map, abnormal situations can be identified in time, and then adjustments can be made in time, ensuring the accuracy of the material control of the power project and ensuring the smooth implementation of the power project.

[0064] (2) According to the deviation situation appearing on the first receiving map, the distribution prediction results of the materials affected on the second receiving map are correspondingly updated to further improve the accuracy of the second receiving map.

[0065] (3) When there is a situation where a predetermined receiving location is affected by other distributed materials and cannot receive the target material normally, or even if it can receive the target material, the receiving time will be too late, etc., it is determined that the location replacement condition is met, so as to be able to replace the receiving location of the target material in time, ensure the normal storage of the target material, and avoid affecting the project progress.

[0066] (4) Instead of using specific warehousing data as material information, the corresponding materials that affect the receipt of the target material are screened and counted to ensure the accuracy of the material information at each receiving location, and then the accuracy of the subsequent second receiving map. And from multiple perspectives such as accepting remaining inventory, receiving and inspection capabilities, and traffic conditions, it is ensured that the second receiving map can comprehensively display the relevant influencing factor information for the distribution of the target material, ensuring the accuracy of the subsequent control of the target material according to the second receiving map.

[0067] (5) When it is determined that the location replacement condition is met, the receiving location of the target material can be replaced in time to ensure the normal storage of the target material and avoid affecting the project progress. And it is possible to optimize the replaced receiving location starting from the location replacement cost and the deviation of the receiving time, and then regenerate the distribution path of the target material to reduce the cost of replacing the location and the deviation of the receiving time caused. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 is a schematic flow chart of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0069] The present invention will be further described below in conjunction with the drawings and embodiments.

[0070] Embodiment: A method for optimizing material allocation based on the material receiving map of a power grid project, as Figure 1 shown, includes:[[]]END]]

[0071] Taking each receiving location of the power grid project materials in the target power project as nodes, a first receiving map is generated;

[0072] Set the target materials for the current delivery, determine the corresponding receiving location and delivery time, generate the delivery path of the target materials, and predict the corresponding arrival time;

[0073] Execute the delivery of the target materials according to the delivery path, and predict the material information at each receiving location at the corresponding arrival time in real time based on the materials already delivered in the current target power project, and generate a second receiving map at the corresponding arrival time in real time;

[0074] Obtain the material status update information of each receiving location in the first receiving map, and update the prediction result of the materials in transit in the second receiving map based on the material status update information;

[0075] Based on the updated second receiving map, determine whether the location replacement condition is met;

[0076] When the location replacement condition is met, based on the second receiving map, regenerate the delivery path of the target materials.

[0077] By constructing a traditional corresponding first receiving map to formulate the initial delivery path of the target materials, compared with the manual management method, it can effectively improve the control efficiency of materials. However, considering that the material status shown on the traditional first receiving map needs to be updated according to the implementation of the corresponding material management operations. For example, after the materials are delivered to the corresponding destination, they can only be arranged for warehousing after the corresponding acceptance work is completed. During this period, the start time, duration, and acceptance results of the acceptance cannot be shown on the first receiving map. This lag in data update will cause the specific material conditions of each receiving location not to be reflected in a timely manner on the first receiving map. If the inventory in the receiving location has reached the threshold after the acceptance of the materials delivered in the front, it will cause the situation that the target materials cannot be normally warehoused. And the acceptance capacity of each receiving location is limited. The target materials need to be accepted after the acceptance of the materials delivered in the front. Affected by other materials, the acceptance time may exceed the time specified in the power project, which will affect the implementation of the power project.

[0078] Therefore, considering the deviation caused by the lag in this part of data update for material management, which is basically brought about by the control situation of other materials during the same period. Therefore, during the distribution process, a second receiving map is generated based on the distribution situation of other materials. The material information in the second receiving map is a prediction result obtained according to the distribution situation of the distributed materials, and the update of its material status is not restricted by material operations. The second receiving map can more accurately reflect the material information at the corresponding receiving location at the corresponding receiving time. Through the second receiving map, the receiving capacity of the corresponding receiving location for the target materials can be quickly identified, so that when an abnormal situation may occur, adjustments can be made in a timely manner, the receiving location can be changed, and the normal inspection and warehousing of the target materials can be ensured for the use of the target power project, ensuring the smooth implementation of the target power project.

[0079] Among them, the first receiving map generated with the receiving locations as nodes is a basic map showing the locations of the receiving locations and the material requirements of the power project, which is closely related to the specific construction content of the target power project and is established based on the specific material requirements and planning of the target power project to ensure the accuracy and efficiency of formulating the initial material control in the follow-up.

[0080] Specifically, a receiving platform can be constructed through map platforms such as Geographic Information System (GIS) using information such as the address names and longitude and latitude coordinates of each receiving location.

[0081] And considering that the receiving locations need to adapt to the specific construction content and planning of the target power project, therefore, with the receiving locations of the grid project materials in the target power project as nodes, a first receiving map is generated, including:

[0082] Determine the construction locations in the target power project according to the construction content of the target power project;

[0083] Based on the construction locations and the corresponding construction content, set the corresponding receiving locations and the types of stored materials;

[0084] Cluster the receiving locations according to the types of stored materials and the corresponding construction content, and set the reserve level of each receiving location according to the clustering results;

[0085] With each receiving location as a node, generate a first receiving map according to the corresponding position coordinates, and set the display information of each node on the first receiving map according to the corresponding reserve level.

[0086] Among them, the construction site is the place where the power project is actually constructed, and it can be determined according to the specific construction content of the project. The receiving site, on the other hand, is the place for material reception and storage, usually close to or serving the construction site. All kinds of materials required at the construction site are distributed and delivered from the receiving site to ensure the smooth progress of the construction activities.

[0087] Therefore, first, according to the specific construction content of the target power project, including substation construction, transmission line laying, distribution equipment installation, etc., determine the specific geographical location of each construction link and use it as the construction site. After determining the corresponding construction site, select a reasonable receiving site, such as a warehouse, temporary storage point or logistics center near the construction site, and then determine the specific material types involved according to the corresponding construction content, and further determine the material types stored at the receiving sites corresponding to each construction site.

[0088] Among them, material types include building materials such as cables, steel, transformers, tools and equipment such as cranes, excavators, and safety supplies, etc. Through the construction content of the target power project, the application quantity and expected usage time of each material during the project implementation can be determined.

[0089] And considering that the construction content of different construction sites may be similar, and the material types applied should also be similar. Therefore, cluster the receiving sites according to the stored material types and construction content to group the locations with similar material requirements and construction progress into the same category, and mark them by the reserve level. Subsequently, when the location for material distribution needs to be changed, the receiving sites that can accept the corresponding materials can be determined through the reserve level, improving the efficiency of material control. Among them, the clustering of receiving sites can be achieved through the K-means clustering algorithm. The corresponding reserve level is a mark of the material requirements of each receiving site, which is used to show its acceptance and storage capacity for specific material types. For the same receiving site, multiple reserve levels can be set according to different material types.

[0090] After obtaining the receiving site and its corresponding information, then taking each receiving site as a node, according to the corresponding position coordinates, use Geographic Information System (GIS) or map-making software, etc. to generate the first receiving map.

[0091] The display information on the first receiving map includes the name, position coordinates, reserve level, and corresponding material inventory and other material information of each receiving site. Moreover, the material inventory and other material information of each receiving site on the first receiving map will be updated according to the actual material usage and reception situation.

[0092] For the reserve level of each receiving site, on the first receiving map, different reserve levels can be represented by different colors or charts for quick identification and management.

[0093] And on the first receiving map, for the convenience of material distribution management, the road network, construction area boundaries, road traffic conditions, etc. involved are marked to further improve the efficiency of material control.

[0094] After obtaining the first receiving map, according to the pre-planned material procurement plan of the power project or in response to the construction requirements of the power project, material distribution will be arranged at a predetermined time. When there is a material distribution requirement, the corresponding material distribution plan can be made according to the first receiving map.

[0095] Specifically, setting the target material for the current distribution, determining the corresponding receiving location and distribution time, generating the distribution path of the target material, and predicting the corresponding arrival time includes:

[0096] Based on the target power project, determine the receiving location of the target material for the current distribution;

[0097] Generate the distribution path of the target material according to the starting position of the distribution of the target material and the receiving location;

[0098] Predict the arrival time of the target material at the receiving location according to the distribution time of the target material, the distribution path, and the corresponding distribution influencing factors on the distribution path;

[0099] Obtain the corresponding receiving habit information of the corresponding receiving location according to the type of the target material;

[0100] Determine the receiving time of the target material at the corresponding receiving location according to the arrival time of the target material and the corresponding receiving habit information.

[0101] The distribution of the target material not only includes the distribution from the supplier to the corresponding receiving location, but also includes the material scheduling and coordination between receiving locations, etc. Therefore, it is necessary to first identify the target material for distribution, and then combine the relevant content in the target power project to judge its distribution purpose. If the supplier supplies materials according to the procurement plan of the target power project, the receiving location that can accept the corresponding materials can be selected according to the specific procurement plan content. Furthermore, combined with the current location of the materials, that is, the starting position of the distribution, the distribution path of the target material is generated.

[0102] When generating the distribution path of the target material, the commonly used distribution route can be set as the distribution path of the current target material according to the historical distribution situation, or it can be planned according to the road traffic conditions shown on the first receiving map to determine the best distribution path.

[0103] After determining the corresponding delivery route and the delivery time to start the delivery, the preliminary arrival time can be predicted by calculating the delivery situations in different time periods and different routes. Then, combined with the current road traffic conditions, weather data and other delivery influencing factors that will affect the delivery time, the predicted preliminary receiving time is adjusted to determine the arrival time of the target materials at the receiving location.

[0104] After determining the arrival time, according to the material type of the target materials, the receiving habit information of the corresponding receiving location for this material type can be obtained, including the content of the receiving and acceptance operation, the unit acceptance operation time, etc. Then, combined with the current material situation of the target materials, the corresponding receiving time is predicted to intuitively reflect the time required for material acceptance.

[0105] Due to the lag in the update of materials at each receiving location on the first receiving map, it is difficult to guarantee the accuracy of the delivery plan for the target materials based on the first receiving map. For example, when formulating the delivery plan for the target materials, there are some materials in the inspection state at the corresponding receiving location, and the inventory of this part of the materials has not been updated to the first receiving map in time. This may result in the fact that the remaining inventory of the selected receiving location cannot actually accommodate the target materials. Or after formulating the delivery plan for the target materials, since the target materials have not yet reached the receiving location, the inventory of this part of the target materials has not been updated on the first receiving map. It is possible that other materials at a closer distance are delivered to the same receiving location and arrive before the target materials. This will occupy the acceptance resources of the target materials, resulting in the need to delay the acceptance after the target materials arrive, and the final warehousing time exceeds the expected use time of the power project, affecting the implementation progress of the power project.

[0106] In order to identify and handle the above abnormal situations in a timely manner and improve the accuracy of material control, when implementing the delivery of target materials according to the delivery route, the material information of each receiving location at the corresponding arrival time is predicted in real time based on the delivered materials of the current target power project, and a second receiving map at the corresponding arrival time is generated in real time, which specifically includes the following steps:

[0107] Obtain the material status of the delivered materials of the current target power project, screen out the materials in transit with the material status of "in transit" among the delivered materials, and obtain the corresponding arrival time and receiving time;

[0108] Based on the arrival time and receiving time of the materials in transit, predict the material information of each receiving location at the corresponding arrival time;

[0109] Match each receiving location with the first receiving map, and set the display information of each receiving location according to the predicted material information according to each receiving location to generate a second receiving map.

[0110] For the materials involved in power projects, their material status can be specifically divided into distribution and in stock, etc. Basically, the materials that will affect the distribution of target materials are those in the distribution state that will occupy resources such as material inventory. Therefore, in order to accurately identify the impact of this part of materials on the distribution management of target materials, first screen out the in-distribution materials with the material status of distribution.

[0111] Before the distribution of each in-distribution material, a specific distribution plan will be planned through the first receiving map. Therefore, the predicted arrival time and receiving time can be obtained to judge the material information at each receiving location and the corresponding acceptance time required under the predicted arrival time of the target material. Furthermore, according to the corresponding material information, judge whether there are abnormal situations such as insufficient material inventory or insufficient acceptance capacity, which affect the receiving time, and then judge whether it is necessary to replace and adjust the subsequent receiving locations.

[0112] Among them, predicting the material information at each receiving location at the corresponding receiving time based on the arrival time and receiving time of the in-distribution materials includes:

[0113] Compare the receiving time of the in-distribution materials with the arrival time of the target materials, and take the in-distribution materials whose receiving time is earlier than the arrival time as the first received materials;

[0114] Compare the arrival time of the remaining in-distribution materials and their receiving time with the arrival time of the target materials, and take the in-distribution materials whose arrival time is earlier than the arrival time of the target materials and whose receiving time is later than the arrival time of the target materials as the second received materials;

[0115] Obtain the material call information of the power project at the corresponding arrival time of the target material;

[0116] According to the material quantities of the first received materials and the second received materials, obtain the remaining inventory of material reception and the acceptance capacity at each receiving location, and determine the material information at each receiving location at the arrival time of the target material.

[0117] Considering that the material quantities and material types are different, the acceptance time required for each material is different, and the acceptance processing at the receiving location mostly needs to be carried out in the arrival order. Therefore, there may be materials that arrive before the target material, but due to the long acceptance time, their receiving time is later than the arrival time of the target material. At this time, this kind of material will occupy the acceptance resources of the target material and will also affect the material inventory at the receiving location. Therefore, the relevant information of this kind of material is also directly included in the corresponding material inventory.

[0118] Moreover, not only will the changes in materials during the storage process of materials affect the inventory receiving capacity of each receiving location for materials, but the changes in material allocation will also affect the material inventory receiving capacity. Therefore, when generating the second receiving map based on the material information of other distributed materials, retrieve the material allocation information of the power project at the time of arrival of the target materials to accurately identify the remaining inventory of materials received at each receiving location.

[0119] Based on the quantity of materials of the second received materials and the overall receiving and inspection capacity of the corresponding receiving location, it is possible to identify the receiving and inspection capacity of each receiving location at the time of arrival of the target materials.

[0120] The remaining inventory of received materials and the receiving and inspection capacity are the main factors affecting the delivery and warehousing time of the target materials. Update the display information of each receiving location with them to generate a second receiving map that can display the current actual material situation.

[0121] Moreover, considering that if multiple types of materials arrive at the receiving location simultaneously, it may also cause traffic congestion at the location of the corresponding receiving location, affecting the delivery and inspection of the target materials. Therefore, on the second receiving map, the traffic conditions at the location of the corresponding receiving location can be further displayed to provide data support for redefining the location replacement conditions in the future.

[0122] Considering that the delivery time will have a certain deviation due to various factors on the delivery route, this deviation will not only affect the delivery of a single material, but also affect the delivery of materials at adjacent times or with similar delivery routes, and the degree of influence will vary with the similarity of the departure time and delivery route. This leads to a certain deviation between the prediction results on the second receiving map and the actual situation. Therefore, in order to further improve the accuracy of the prediction data on the second receiving map, according to the deviation situation on the first receiving map, the delivery prediction results of the materials affected on the second receiving map are updated correspondingly.

[0123] Specifically, obtain the material status update information of each receiving location in the first receiving map, and update the prediction results of the materials in transit in the second receiving map based on the material status update information. The specific steps are as follows:

[0124] Obtain the material status update information of each receiving location in the first receiving map, and screen out the deviation materials with a deviation in arrival time;

[0125] Obtain the departure time and delivery route of the deviation materials, and according to the departure time and delivery route, obtain the correlation degree between the materials in transit in the second receiving map and the deviation materials;

[0126] Update the arrival time and receiving time of the materials in each delivery according to the corresponding correlation degree and the deviation time of the deviation materials in the arrival time.

[0127] Based on the updated arrival time and receiving time of the materials in each delivery, update the material information of each receiving location in the second receiving map at the corresponding arrival time of the target material.

[0128] Among them, the delivery time of the materials is actually affected by multiple factors on the delivery route, and its delivery time actually fluctuates. However, the material delivery of the power project needs to be scheduled and managed according to the predetermined procurement plan, often requires multiple deliveries in a certain cycle, and the delivery route basically does not change significantly. Therefore, the corresponding average delivery time can be obtained through historical delivery information, such as historical departure time, historical arrival time, etc. According to the updated information on the material status of each receiving location in the first receiving map, the delivery time of each material can be roughly calculated, and it is compared with the corresponding average delivery time to determine whether there are materials that arrive early or late.

[0129] For the materials with arrival time deviation, there must be factors affecting the delivery speed in the corresponding delivery process. Most of these factors require a certain amount of time to be removed, such as traffic jams, etc. Therefore, these factors will definitely affect the delivery time of the materials whose departure time is close to that of the materials with arrival time deviation and the delivery route is also similar.

[0130] Although the second receiving map also considers the corresponding traffic factors for prediction, there will still be unexpected situations such as car accidents and abnormal weather during the actual operation process, resulting in deviations in the prediction results. Therefore, according to the materials with arrival time deviation shown in the first receiving map, such deviations are updated and corrected.

[0131] And considering that the data in the first receiving map is updated lagged, when screening the materials with arrival time deviation, only the materials whose arrival time deviation exceeds the preset threshold are selected for subsequent analysis.

[0132] After determining the deviation materials and their deviation time, according to the departure time and delivery route, obtain the correlation degree between the materials in delivery in the second receiving map and the deviation materials. The closer the departure time, the higher the coincidence degree of the delivery route, and the higher the correlation degree. Specifically, the corresponding correlation degree can be calculated through the weighted calculation of the departure time deviation and the coincidence degree of the delivery route. Among them, the coincidence degree of the delivery route can be calculated by comparing the delivery nodes in each delivery route.

[0133] After determining the degree of relevance, the impact of various factors on the material delivery time of other relevant materials can be further determined based on the deviation time of the deviation materials in terms of arrival time, and then the arrival time of the materials in each delivery can be updated. Subsequently, the harvesting time can be updated according to the corresponding arrival time to improve the accuracy of the material information on the second receiving map. Since the delivery times of other materials are uncertain, after the target materials are delivered, there may be other materials entering the delivery process. To determine the impact of this part of the materials on the delivery of the target materials and obtain the delivery situation of the target materials, based on the updated second receiving map, it is necessary to determine whether the location replacement condition is met, and then determine whether the receiving location needs to be replaced.

[0134] Among them, based on the updated second receiving map, determining whether the location replacement condition is met includes:

[0135] Based on the updated second receiving map, identify the remaining inventory for receiving the target materials at the expected arrival time at the corresponding receiving location of the target materials, and compare it with the quantity of the target materials;

[0136] When the receiving capacity of the target materials at the receiving location is lower than the quantity of the target materials, it is determined that the location replacement condition is met;

[0137] When the receiving capacity of the target materials at the receiving location is not lower than the quantity of the target materials, identify the receiving and inspection capacity of the receiving location, and calculate the latest receiving time of the target materials based on the receiving and inspection capacity of the receiving location;

[0138] When the latest receiving time of the target materials is later than the receiving time set in the target power project, it is determined that the location replacement condition is met.

[0139] When the remaining inventory for receiving the target materials at the originally scheduled receiving location of the target materials is lower than the quantity of the target materials, the originally scheduled receiving location will not be able to fully accommodate the target materials, which may cause problems such as secondary delivery or occupying the space resources of other types of materials. In this case, it is necessary to reselect a receiving location that can accommodate the target materials.

[0140] Moreover, since there are requirements for the material supply time in the power project, if the materials cannot be stored in the warehouse in a timely manner, it may affect the subsequent application of the materials in the power project, and further cause the stagnation of the power project progress. Therefore, the latest receiving time of the target materials can be calculated based on the receiving and inspection capacity of the receiving location. If it is later than the receiving time set in the target power project, it is also necessary to reselect a receiving location that can store the materials in the warehouse in a timely manner for the power project to use, so as to avoid affecting the power project progress.

[0141] Identifying the receiving and inspection capacity of the receiving location and calculating the latest receiving time of the target materials based on the receiving and inspection capacity of the receiving location includes the following steps:

[0142] Integrate the overall receiving resources at the current receiving location, and calculate the remaining receiving resources after the arrival of the target materials according to the second received materials;

[0143] Based on the quantity and corresponding material type of the target materials, determine the longest acceptance time required to inspect the target materials under the remaining receiving resources, and then calculate the latest receiving time of the target materials in combination with the arrival time of the target materials.

[0144] For example, the second received materials occupy 2 / 3 of the receiving resources, and the receiving time far exceeds the originally scheduled acceptance time of the target materials. At this time, the target materials are inspected according to 1 / 3 of the receiving resources. The originally scheduled acceptance time of the target materials according to all receiving resources is half an hour. At this time, it takes one and a half hours to complete the acceptance and be stored in the warehouse. According to the corresponding arrival time and the calculated one and a half hours, the latest receiving time can be obtained. If this latest receiving time is later than the expected time of the corresponding power project for the target materials, then when the target materials are called at the expected time, the target materials are in a state of not arriving, and the remaining inventory may not be able to meet the needs of the power project, affecting the implementation of the power project. Taking high-voltage switchgear as an example of the target materials, the production cycle of such equipment is usually 30 - 45 days, and since the demand for high-voltage switchgear in power projects is usually relatively urgent, the supply time and installation time of the equipment need to be determined during the project planning stage. Once the production is completed, it is necessary to transport and install it as soon as possible. If the calculated latest receiving time is lower than the determined supply time of the equipment, this will also lead to the abnormal implementation of the power project.

[0145] Therefore, in such cases, it is necessary to adjust the corresponding receiving location in a timely manner to ensure that the inspection and warehousing of the target materials can be completed before the scheduled time.

[0146] The second receiving map records the material receiving situations of each receiving location, and the second receiving map also shows the material receiving capabilities of each receiving location. Therefore, based on the material receiving situations and corresponding material receiving capabilities of each receiving location, the currently most suitable receiving location for the target materials can be determined, and then the distribution path of the target materials can be regenerated.

[0147] Specifically, regenerating the distribution path of the target materials based on the second receiving map includes:

[0148] Based on the second receiving map, with the lowest location replacement cost and the lowest receiving time deviation as the objective function, and traffic conditions, reserve levels, and receiving and inspection capabilities as the constraints, construct an optimization model for the receiving location of the target materials;

[0149] Obtain the optimal receiving location of the target materials according to the receiving location optimization model;

[0150] Regenerate the distribution route of the target materials based on the optimal receiving location of the target materials.

[0151] Among them, when changing the receiving location, due to the differences in the locations of the receiving locations, there are differences in the transportation costs and labor costs, the acceptance resources configured in each receiving location are also different, and the acceptance time required to complete the acceptance after receiving the target materials is also different. Therefore, in order to achieve a more efficient distribution and supply of the target materials, with the lowest location change cost and the lowest receiving time deviation as the objective function, determine the optimal receiving location of the current target materials.

[0152] Among them, the expression of the objective function can be:

[0153] ;

[0154] Among them, and are weight coefficients, and , which can be set according to actual needs, is the replacement cost required to transfer the target materials from the current receiving location i to the receiving location , is the receiving time of the target materials at the receiving location , is the expected receiving time set according to the preset receiving time in the power project.

[0155] And in order to ensure that the corresponding acceptance work can be normally carried out when reaching the corresponding receiving location, further set the corresponding constraint conditions according to the traffic conditions, reserve levels, and receiving and acceptance capabilities.

[0156] The expression of the said constraint condition is:

[0157] ;

[0158] ;

[0159] ;

[0160] Among them, is the traffic condition index at the receiving location j. The higher the traffic condition index, the smoother the traffic. is the lowest traffic condition index that affects the arrival time of the materials at the receiving location j; The reserve level of the receiving location j for the objective function, is the reserve level of the current receiving location i of the target materials for the target materials; is the receiving and acceptance capacity of the receiving location j at the corresponding receiving time of the target materials, The minimum receiving and inspection capacity required for the unit inspection of target materials.

[0161] This model is a weighted sum minimization problem with linear constraints. Therefore, in this embodiment, it can be solved by linear programming, integer programming, heuristic optimization algorithms, etc. to obtain the optimal receiving location, and then regenerate the distribution path of the target materials based on the optimal receiving location.

[0162] Among them, regenerating the distribution path of the target materials based on the optimal receiving location of the target materials includes:

[0163] Obtain the current location of the target materials, and select a path adjustment node according to the distribution path of the target materials;

[0164] Regenerate the distribution path of the target materials with the path adjustment node as the starting point and the optimal receiving location as the ending point.

[0165] Since a series of distribution nodes are set on the distribution path of the target materials, such as warehouses, transfer stations, final receiving locations, etc., select a path adjustment node from them, start from the path adjustment node, and perform the replacement of the distribution path to minimize the impact of the adjusted path change on the overall distribution efficiency.

[0166] Considering that path replacement has additional costs such as replacement costs, if the path is replaced when the target materials are about to be delivered to the corresponding receiving location, it will only increase the material distribution cost, and there is usually a certain distance for material distribution. If the target materials reach the corresponding receiving location and still do not meet the conditions for replacing the location, the probability of insufficient material inventory or insufficient inspection capacity is also relatively low. If the generation of the second receiving map and the judgment of the location replacement conditions are continued, it is a waste of computing resources instead.

[0167] Therefore, during the distribution of the target materials, corresponding location replacement cut-off nodes are also set on the distribution path of the target materials according to the location information of each receiving location;

[0168] When the target materials are distributed according to the distribution path and the target materials reach the corresponding location replacement cut-off node, stop updating the second receiving map and judging the location replacement conditions.

[0169] Among them, the location replacement cut-off node can be set according to actual needs. For example, it can be set according to the shortest distance for other materials to be delivered to the receiving location, etc.

[0170] After reaching the location replacement cut-off node, the target materials are distributed to the corresponding receiving base according to the current distribution path, and the path is no longer replaced.

[0171] The above-described embodiments are only a preferred solution of the present invention and do not impose any formal restrictions on the present invention. There are other variations and modifications without exceeding the technical solutions described in the claims.

Claims

1. A material allocation optimization method based on a power grid engineering material receiving map, characterized in that: include: Generate a first delivery map by taking each delivery location of power grid engineering materials in the target power project as a node; Set the target materials for the current delivery, determine the corresponding delivery location and delivery time, generate the delivery route for the target materials, and predict the corresponding arrival time; Execute the target material distribution according to the distribution route, and predict the material information of each receiving location at the corresponding arrival time based on the distributed materials of the current target power project in real time, and generate a second receiving map corresponding to the arrival time in real time; Obtaining updated information on the material status of each receiving location in the first receiving map, and updating the prediction results of the materials being delivered in the second receiving map based on the updated information on the material status; Based on the updated second delivery map, determine whether the location change condition is met; When the location change conditions are met, the delivery route of the target materials is regenerated based on the second delivery map; Taking each receiving location of the target power project as a node, establish a first receiving map showing the location of the receiving location and material demand; A second receiving map is generated in real time according to the delivery status of other delivered materials of the current target power project, and the material information in the second receiving map is a prediction result obtained according to the delivery status of the delivered materials; The obtaining of updated material status information of each receiving location in the first receiving map, and updating the prediction results of the materials being delivered in the second receiving map based on the updated material status information, includes: Obtain updated information on the material status of each delivery location in the first delivery map, and filter out deviation materials with deviations in arrival time; Obtain the departure time and delivery path of the deviation materials, and obtain the correlation between the materials being delivered and the deviation materials in the second receiving map according to the departure time and delivery path; Update the arrival time and receipt time of each delivered material according to the corresponding correlation degree and the deviation time of the deviation materials in the arrival time; Based on the updated arrival time and receipt time of each delivered material, update the material information of each delivery location in the second delivery map at the corresponding arrival time of the target material; The determining whether the location change condition is met based on the updated second delivery map includes: Based on the updated second receiving map, identifying the remaining inventory of the target material at the receiving location corresponding to the target material at the estimated arrival time, and comparing it with the material quantity of the target material; When the receiving location's acceptance capacity for the target material is lower than the quantity of the target material, it is determined that the location change condition is met; When the receiving location's acceptance capacity for the target materials is not less than the quantity of the target materials, the receiving and acceptance capacity of the receiving location is identified, and the latest receiving time of the target materials is calculated based on the receiving and acceptance capacity of the receiving location; When the latest delivery time of the target material is later than the delivery time set in the target power project, it is determined that the location change condition is satisfied.

2. The material allocation optimization method based on the power grid engineering material receiving map according to claim 1 is characterized in that: The generating of a first delivery map by taking each delivery location of the power grid engineering materials in the target power project as a node comprises: Determine the construction site of the target power project based on the construction content of the target power project; Based on the construction site and the corresponding construction content, set the corresponding delivery location and its storage material type; Cluster the receiving locations according to the type of stored materials and the corresponding construction content, and set the reserve level of each receiving location based on the clustering results; Taking each delivery location as a node, a first delivery map is generated according to the corresponding location coordinates, and display information of each node on the first delivery map is set according to the corresponding reserve level.

3. The material allocation optimization method based on the power grid engineering material receiving map according to claim 1 is characterized in that: The setting of the target material for the current delivery, determining the corresponding delivery location and delivery time, generating the delivery path of the target material, and predicting the corresponding arrival time includes: Based on the target power project, determine the delivery location of the target materials currently being distributed; Generate the distribution route of the target materials according to the distribution starting point and receiving location of the target materials; According to the delivery time, delivery route and corresponding delivery influencing factors of the target materials, the arrival time of the target materials at the delivery location is predicted; According to the target material type, obtain the corresponding receiving habit information of the corresponding receiving location; According to the arrival time of the target materials and the corresponding receiving habit information, the receiving time of the target materials at the corresponding receiving location is determined.

4. The material allocation optimization method based on the power grid engineering material receiving map according to claim 3 is characterized in that: The target material distribution is executed according to the distribution path, and the material information of each receiving location at the corresponding arrival time is predicted in real time based on the distributed materials of the current target power project, and a second receiving map corresponding to the arrival time is generated in real time, including: Obtain the material status of the delivered materials of the current target power project, filter out the delivered materials whose material status is in delivery, and obtain the corresponding arrival time and receipt time; Based on the arrival time and receipt time of the materials being distributed, predict the material information of each delivery location at the corresponding arrival time of the target materials; Match each delivery location with the first delivery map, set the display information of each delivery location according to the predicted material information, and generate a second delivery map.

5. The material allocation optimization method based on the power grid engineering material receiving map according to claim 4 is characterized in that: The material information of each receiving location at the corresponding arrival time of the target material is predicted based on the arrival time and receipt time of the materials being distributed, including: Compare the receiving time of the materials being distributed with the arrival time of the target materials, and take the materials being distributed whose receiving time is earlier than the arrival time as the first received materials; Compare the arrival time and receipt time of the remaining materials being delivered with the arrival time of the target materials, and take the materials being delivered whose arrival time is earlier than the arrival time of the target materials and whose receipt time is later than the arrival time of the target materials as the second received materials; Obtain the material call information of the power project at the corresponding arrival time of the target materials; According to the material quantities of the first received materials and the second received materials, the remaining material receiving inventory and the receiving and acceptance capacity of each receiving location are obtained, and the material information of each receiving location at the arrival time of the target materials is determined.

6. The material allocation optimization method based on the power grid engineering material receiving map according to claim 5 is characterized in that: The regenerating the distribution path of the target material based on the second receiving map includes: Based on the second delivery map, the objective function is to minimize the location change cost and the delivery time deviation. Taking traffic conditions, reserve level and receiving and acceptance capabilities as constraints, a model for optimizing the receiving location of target materials is constructed; Obtain the optimal delivery location for target materials based on the delivery location optimization model; Regenerate the target material's delivery route based on the target material's optimal delivery location.

7. The material allocation optimization method based on the power grid engineering material receiving map according to claim 6 is characterized in that: The regenerating the distribution path of the target material based on the optimal delivery location of the target material includes: Get the current location of the target material and select the path adjustment node according to the distribution path of the target material; Taking the path adjustment node as the starting point and the optimal delivery location as the end point, the distribution path of the target materials is regenerated.

8. The material allocation optimization method based on the power grid engineering material receiving map according to claim 1 is characterized in that: Also includes: According to the location information of each delivery location, set the corresponding location change cut-off node on the distribution path of the target materials; When the target material is delivered according to the delivery route and the target material arrives at the corresponding location change cut-off node, the second receiving map update and location change condition judgment are stopped.

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