A logistics distribution and scheduling system based on digital twins

Abstract

The present invention discloses a logistics distribution and scheduling system based on digital twins, comprising: an order processing module for receiving customer distribution orders and generating a distribution plan for communication equipment to be distributed, a logistics resource library module for storing real-time data of physical entities of a logistics management platform, the physical entities including communication equipment to be distributed, logistics transport vehicles, loading equipment and logistics transport routes, a digital model library module for generating and storing digital models of physical entities, a digital simulation module for simulating a distribution plan formulated by a digital simulation model according to the distribution plan, a scheduling module for guiding the loading and transportation of communication materials according to the distribution plan, a monitoring module for monitoring the vehicle status of the logistics transport vehicle and the status of the communication equipment during distribution, and sending the real-time monitoring results to the digital simulation module, so as to improve the reliability of transportation by using digital twins.

Description

Technical Field

[0001] The present invention belongs to the technical field of digital twin and warehousing logistics, and in particular to a logistics distribution and scheduling system based on digital twin. Background Art

[0002] With the advent of the 5G era, the demand for basic communication equipment from various communication operators is increasing. Communication equipment not only has a wide variety of products, but also has a high product value. Therefore, its stability and reliability need to be guaranteed during logistics and transportation. Since some communication equipment products are large in size, such as cabinets and racks used to set up communication base stations, and some products are relatively small in size, such as cables, panel accessories, routers, etc., the transportation and loading of communication equipment of various shapes are complicated and the full load rate is low. The logistics distribution lacks good planning, resulting in inventory and transportation capacity waste. In addition, the transportation status of logistics vehicles is difficult to grasp, and the safety of logistics vehicles and communication equipment is not guaranteed. This problem needs to be solved urgently. Summary of the invention

[0003] The purpose of this invention is to provide a logistics distribution and scheduling system based on digital twins to address the deficiencies in the prior art. It uses digital twin technology to create a digital model for each communication device in a virtual space, and digitally simulates the entire logistics transportation process, optimizes the distribution plan, and improves the reliability of communication equipment transportation.

[0004] The embodiment of the present application provides a logistics distribution and scheduling system based on digital twins, which is applied to a warehousing logistics management platform constructed using digital twin technology. The system includes:

[0005] Order processing module, logistics resource library module, digital model library module, digital simulation module, scheduling module and monitoring module; among them,

[0006] The order processing module is used to receive the delivery order of the customer and generate a delivery plan for the communication devices to be delivered;

[0007] The logistics resource library module is used to store real-time data of physical entities of the logistics management platform, and the physical entities include communication equipment to be delivered, logistics transportation vehicles, loading equipment and logistics transportation routes;

[0008] The digital model library module is used to generate and store the digital model of the physical entity;

[0009] The digital simulation module is used to formulate a distribution plan through digital simulation according to the distribution plan;

[0010] The scheduling module is used to guide the loading and unloading of the communication equipment to be delivered and the logistics transportation of the logistics transportation vehicle according to the delivery plan;

[0011] The monitoring module is used to monitor the vehicle status of the logistics transport vehicle and the status of the communication equipment to be delivered, and send the real-time monitoring results to the digital simulation module.

[0012] Optionally, formulating a distribution plan through digital simulation according to the distribution plan includes:

[0013] According to the distribution plan, communication equipment, logistics transport vehicles and loading equipment to be distributed are obtained in the logistics resource library module;

[0014] The digital simulation module obtains the digital models corresponding to the communication device to be delivered, the logistics transportation vehicle and the loading device from the digital model library module, performs digital simulation in the virtual space, and uses the digital model corresponding to the loading device to load the digital model corresponding to the communication device to be delivered into the digital model corresponding to the logistics transportation vehicle;

[0015] The digital simulation module generates a distribution plan based on the digital simulation results.

[0016] Optionally, the performing of digital simulation in the virtual space, using the digital model corresponding to the loading device to load the digital model corresponding to the communication device to be delivered into the digital model corresponding to the logistics transportation vehicle, includes:

[0017] According to the preset algorithm, the digital simulation module is used to solve the three-dimensional loading problem and generate a preliminary loading plan;

[0018] According to the preliminary loading plan, the digital model corresponding to the communication device to be delivered is loaded into the digital model corresponding to the logistics transportation vehicle using the digital model corresponding to the loading device.

[0019] Optionally, the system further includes:

[0020] The digital simulation module performs digital simulation of the transportation of the logistics transport vehicles according to the preliminary loading plan and the logistics transport path, uses the digital model of the local loading equipment to unload the digital model of the communication equipment to be delivered at each delivery point, verifies the feasibility and efficiency of unloading the communication equipment, verifies the stability of the logistics transport vehicles and communication equipment in the subsequent transportation path, optimizes the preliminary loading plan according to the digital simulation results, and generates a distribution plan.

[0021] Optionally, the system further includes:

[0022] The monitoring module is used to monitor the real-time status of the logistics transport vehicle after the communication equipment to be delivered is unloaded, update the digital model in the virtual space, continuously perform digital simulation on the logistics process in the subsequent transportation path, and optimize the subsequent delivery plan when abnormalities occur in the digital simulation results.

[0023] Optionally, the scheduling module includes a loading scheduling unit, an unloading scheduling unit, a driving scheduling unit, a three-dimensional loading generation unit and an AR loading generation unit. The loading scheduling unit is used to guide the loading of the communication equipment to be delivered according to the distribution plan; the unloading scheduling unit is used to guide the unloading of the communication equipment to be delivered at the delivery point according to the distribution plan; the driving scheduling unit is used to receive subsequent distribution plans sent by the digital simulation module to guide the adjustment of the logistics transportation route; the three-dimensional loading generation unit is used to generate a three-dimensional loading diagram of the communication equipment to be delivered, and perform automatic and / or manual loading according to the three-dimensional loading diagram; the AR loading generation unit is used to generate an AR loading diagram of the communication equipment to be delivered, and guide the operator to load the communication equipment to be delivered in the logistics transportation vehicle according to the AR instructions through AR glasses or a mobile terminal.

[0024] Optionally, the loading scheduling unit includes an automatic loading subunit and a manual loading subunit, the automatic loading subunit is used to receive control instructions sent by the scheduling module and control the loading equipment to perform automatic loading, and the manual loading subunit is used to receive manual operation instructions sent by the scheduling module to the operator.

[0025] Optionally, the monitoring module includes a positioning unit, a camera unit, a sensor unit, an RFID reader unit and a tire pressure detection system.

[0026] Optionally, the tire pressure detection system includes: a direct tire pressure detector inside the tire and a temperature detector inside the tire, the temperature detector inside the tire is used to correct the tire pressure detection value, and the corrected tire pressure detection value is used to detect whether there is a center of gravity offset in the logistics vehicle.

[0027] Optionally, the digital model includes: a structural model and a mass distribution model of the communication equipment to be delivered, a cargo box model, a load model and a mass distribution model of the logistics transport vehicle, an equipment model of the loading equipment, and a digital map model of the logistics transport route.

[0028] Compared with the prior art, the present invention provides a logistics distribution and scheduling system based on digital twins, including an order processing module, a logistics resource library module, a digital model library module, a digital simulation module, a scheduling module and a monitoring module. It uses digital twin technology to create a digital model for each communication device in a virtual space, and digitally simulates the entire logistics transportation process to optimize the distribution plan and improve the reliability of communication equipment transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the framework structure of a logistics distribution and scheduling system based on digital twins provided in an embodiment of the present invention;

[0030] Figure 2 A schematic diagram of the connection relationship of a logistics distribution and scheduling system based on digital twins provided in an embodiment of the present invention;

[0031] Figure 3 A schematic diagram of a flow chart of a digital simulation model for formulating a distribution plan provided by an embodiment of the present invention;

[0032] Figure 4 A hardware structure block diagram of a computer terminal of a logistics distribution and scheduling system based on digital twins provided in an embodiment of the present invention;

[0033] Figure 5 A schematic diagram of an optimized delivery route provided by an embodiment of the present invention;

[0034] Figure 6 A schematic diagram of a first preliminary packing solution provided by an embodiment of the present invention;

[0035] Figure 7 A schematic diagram of a second preliminary packing solution provided by an embodiment of the present invention;

[0036] Figure 8 A schematic diagram of a third preliminary packing solution provided by an embodiment of the present invention;

[0037] Fig. 9 An actual packing diagram of a location A provided by an embodiment of the present invention;

[0038] Fig.10 An actual packing diagram of location A after dynamic adjustment provided by an embodiment of the present invention;

[0039] Fig.11 An updated new path schematic diagram provided for an embodiment of the present invention. DETAILED DESCRIPTION

[0040] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but should not be construed as limiting the present invention.

[0041] Digital Twin is a simulation process that makes full use of physical models, sensor updates, operation history and other data, integrates multi-disciplinary, multi-physical, multi-scale and multi-probability simulations, and completes mapping in virtual space, thereby reflecting the entire life cycle of the corresponding physical equipment. Digital Twin is a concept that transcends reality and can be regarded as a digital mapping system of one or more important and interdependent equipment systems.

[0042] See also Figure 1 , Figure 1 A schematic diagram of the framework structure of a logistics distribution and scheduling system based on digital twins is provided for an embodiment of the present invention, wherein the logistics distribution and scheduling system based on digital twins is applied to a warehousing logistics management platform 10 constructed using digital twin technology, and the digital twin logistics distribution and scheduling system may include: an order processing module 101, a logistics resource library module 102, a digital model library module 103, a digital simulation module 104, a scheduling module 105 and a monitoring module 106; in view of the characteristics of a wide variety of communication equipment, complex structure and high value, an accurate digital mirror (such as a structural model, a quality model) is created in a virtual space for each communication equipment, and on the basis of digital simulation of a three-dimensional loading or unloading process, the digital twin technology is used to digitally simulate the entire logistics transportation process, focusing on monitoring the center of gravity distribution of logistics vehicles and the center of gravity distribution of communication equipment, avoiding tipping and collision of communication equipment, and avoiding vehicle rollover, thereby optimizing the distribution plan and maximizing the full load rate of logistics vehicles, and improving the safety of communication equipment transportation.

[0043] Among them, the order processing module 101 is used to receive the customer's delivery order and generate a delivery plan for the communication equipment to be delivered, wherein the content of the delivery plan includes the communication equipment to be delivered, the delivery location and the delivery date, etc.; the logistics resource library module 102 is used to store the real-time data of the physical entities of the logistics management platform 10, and the physical entities include the communication equipment to be delivered, the logistics transportation vehicles, the loading equipment and the logistics transportation routes; the digital model library module 103 is used to generate and store the digital models of the physical entities; the digital simulation module 104 is used to formulate a delivery plan through digital simulation according to the delivery plan; the scheduling module 105 is used to guide the loading and unloading of the communication equipment to be delivered and the logistics transportation of the logistics transportation vehicles according to the delivery plan; the monitoring module 106 is used to monitor the vehicle status of the logistics transportation vehicles and the status of the communication equipment to be delivered, and send the real-time monitoring results to the digital simulation module 104.

[0044] Specifically, the scheduling module 105 includes a loading scheduling unit, an unloading scheduling unit, a driving scheduling unit, a three-dimensional loading generation unit and an AR loading generation unit. The loading scheduling unit is used to guide the loading of the communication equipment to be delivered according to the distribution plan. The unloading scheduling unit is used to guide the unloading of the communication equipment to be delivered at the delivery point according to the distribution plan. The driving scheduling unit is used to receive the subsequent distribution plan sent by the digital simulation module to guide the adjustment of the logistics transportation path. The three-dimensional loading generation unit is used to generate a three-dimensional loading diagram of the communication equipment to be delivered, and automatically and / or manually load according to the three-dimensional loading diagram. The AR loading generation unit is used to generate an AR loading diagram of the communication equipment to be delivered, and guide the operator to load the communication equipment to be delivered in the logistics transportation vehicle according to the AR guidance through AR glasses or a mobile terminal.

[0045] The loading scheduling unit includes an automatic loading subunit and a manual loading subunit. The automatic loading subunit is used to receive control instructions sent by the scheduling module and control the loading equipment to perform automatic loading. The manual loading subunit is used to receive manual operation instructions sent by the scheduling module to the operator.

[0046] The digital model includes the structural model and mass model of the communication equipment to be delivered, the cargo box model, load model and mass distribution model of the logistics transportation vehicle, the equipment model of the loading equipment, and the digital map model of the logistics transportation route.

[0047] The monitoring module 106 includes a positioning unit, a camera unit, a sensor unit, an RFID reader unit and a tire pressure detection system, wherein the tire pressure detection system includes: a direct tire pressure detector in the tire and a temperature detector in the tire, the temperature detector in the tire is used to correct the tire pressure detection value, and the corrected tire pressure detection value is used to detect whether there is a center of gravity offset in the logistics vehicle.

[0048] Specifically, the monitoring module can be installed on a logistics transport vehicle, including a positioning device (such as GPS), a camera, a sensor (such as a pressure sensor, a vibration sensor), an RFID reader and a tire pressure detection system, to monitor the vehicle status (driving position, driving direction, driving speed, tire pressure status) and the communication equipment status (position), and transmit them to the digital simulation module.

[0049] It should be noted that a direct tire pressure detector is installed in each tire of the logistics transport vehicle to detect the gas pressure inside the tire and send it to the monitoring module wirelessly. In actual transportation, the change in tire pressure is not only affected by the load, but also by the tire temperature. During driving, tires in different positions are exposed to different light and have large temperature differences. Therefore, a temperature detector is added to each tire of the logistics transport vehicle to detect the gas temperature inside the tire and send it to the monitoring module wirelessly.

[0050] According to the ideal gas formula:

[0051] pV=nRT

[0052] Among them, p is pressure, V is volume, n is the amount of substance, R is the universal gas constant, and T is absolute temperature.

[0053] Corrected tire pressure p for tire n mn Calculated by the following formula:

[0054]

[0055] Where: T m To correct the absolute temperature, we can take 298.15K (25 degrees Celsius), T cn is the current absolute temperature of tire n, p cn is the pressure of tire n.

[0056] The monitoring module continuously sends the corrected tire pressure of each tire to the digital simulation unit. The digital simulation unit monitors the changes in the corrected tire pressure before the communication equipment is loaded, after it is fully loaded, and after it is partially unloaded. When the logistics transport vehicle is unloaded, the corrected tire pressure of the left and right tires is basically the same. When the loaded communication equipment is unbalanced, the center of gravity of the vehicle shifts, and the corrected tire pressure added to the tires on both sides is inconsistent. The digital simulation module can promptly detect whether there is a risk of vehicle overturning in the subsequent transportation path through the digital simulation model.

[0057] Communication equipment has high professional and technical requirements and strong commercial specificity, and has high requirements for the performance, quality, quantity, delivery period, etc. of communication equipment products. The distribution orders of communication operators mainly include communication transmission equipment, communication switching equipment, communication terminal equipment, mobile communication and terminal equipment, and other communication equipment. The operation mode of warehousing and logistics in the communication industry is as follows: First, the communication operator sends a purchase order to the equipment manufacturer, the manufacturer sends the equipment to the warehousing and logistics provider, and the construction company carries out the construction of the project. The communication operator issues a distribution order to the warehousing and logistics provider based on the progress of the construction project, and the warehousing and logistics provider delivers the communication equipment to the project site and delivers it to the construction company.

[0058] See also Figure 2 , Figure 2A schematic diagram of the connection relationship of a logistics distribution and scheduling system based on digital twins is provided in an embodiment of the present invention, which is used to show the relationship between various modules of the logistics distribution and scheduling system.

[0059] See also Figure 3 , Figure 3 A schematic diagram of a flow chart of a digital simulation model formulating a distribution plan according to an embodiment of the present invention. Specifically, formulating a distribution plan through digital simulation according to the distribution plan may include the following steps:

[0060] S301: According to the distribution plan, communication equipment, logistics transport vehicles and loading equipment to be distributed are obtained in the logistics resource library module.

[0061] S302: The digital simulation module obtains the digital models corresponding to the communication equipment to be delivered, the logistics transportation vehicle and the loading equipment from the digital model library module, and performs digital simulation in the virtual space, and uses the digital model corresponding to the loading equipment to load the digital model corresponding to the communication equipment to be delivered into the digital model corresponding to the logistics transportation vehicle.

[0062] Specifically, according to a preset algorithm, a digital simulation module is used to solve the three-dimensional loading problem and generate a preliminary loading plan, wherein the preset algorithm includes a genetic algorithm and / or an orthogonal binary tree search algorithm;

[0063] Specifically, the digital simulation module solves the three-dimensional loading problem and generates a preliminary loading plan. The constraints are the compartment capacity and vehicle load, and the optimization objectives are the maximum load, maximum space utilization, minimum number of vehicles, etc. There are many general algorithms for solving three-dimensional loading problems, including genetic algorithms, orthogonal binary tree search algorithms, etc.

[0064] According to the preliminary loading plan, the digital model corresponding to the communication device to be delivered is loaded into the digital model corresponding to the logistics transportation vehicle using the digital model corresponding to the loading device.

[0065] Specifically, the digital simulation module uses digital twin technology to load the digital model of the communication equipment into the digital model of the vehicle using the digital model of the loading equipment according to the preliminary loading plan. At present, mainstream logistics simulation software (such as Incontrol) supports digital simulation of the communication equipment loading process. The purpose of digital simulation is to verify the applicability of the communication equipment during the loading process and optimize the loading sequence of the communication equipment. If the digital simulation verification is not feasible, jump to the step of solving the three-dimensional loading problem using the digital simulation module according to the preset algorithm and generating a preliminary loading plan for re-solving.

[0066] The characteristics of the logistics of communication equipment to be delivered are that they vary greatly (such as volume and weight) and are transported in a single vehicle. Multiple delivery points can be used for unloading in the logistics transportation route, which will cause two problems: first, the loading equipment at the delivery point may not match the loading plan and cannot be effectively unloaded; second, after some communication equipment is unloaded during transportation, the center of gravity of the logistics transportation vehicle changes, and there is a risk of communication equipment tipping over and vehicle rollover in the subsequent transportation route. Therefore, it is necessary to use digital twin technology to perform digital simulation of logistics transportation vehicles. The digital model of the vehicle is driven according to the logistics transportation route. The digital model of the loading equipment is used to unload the digital model of the communication equipment at each delivery point to verify the feasibility and efficiency of unloading the communication equipment and the stability of the vehicle during driving. The digital simulation of the driving process involves digital maps and vehicle dynamics. In the digital simulation process, if it is verified that the loading equipment at a certain delivery point is not applicable, or there is a risk of communication equipment tipping over and vehicle rollover in a certain section of the transportation route, then jump to the step of solving the three-dimensional loading problem using the digital simulation module according to the preset algorithm and generating a preliminary loading plan to solve it again.

[0067] S303: The digital simulation module generates a distribution plan according to the digital simulation results.

[0068] Specifically, the digital simulation module generates a distribution plan based on the digital simulation results, including logistics transportation vehicles, loading equipment used, communication equipment to be distributed, the arrangement of the communication equipment to be distributed in the vehicle cargo box, and the loading order of the communication equipment to be distributed.

[0069] It should be noted that the digital simulation module performs digital simulation of the transportation of the logistics transport vehicles according to the preliminary loading plan and the logistics transport route, uses the digital model of the local loading equipment to unload the digital model of the communication equipment to be delivered at each delivery point, verifies the feasibility and efficiency of unloading the communication equipment, verifies the stability of the logistics transport vehicles and communication equipment in the subsequent transportation route, optimizes the preliminary loading plan according to the digital simulation results, and generates a distribution plan.

[0070] Among them, the monitoring module is used to monitor the real-time status of the logistics transportation vehicle after the communication equipment to be delivered is unloaded, update the digital model in the virtual space, continuously digitally simulate the logistics process in the subsequent transportation path, and optimize the subsequent delivery plan when abnormalities occur in the digital simulation results.

[0071] Specifically, the distribution plan in the digital space cannot always be strictly implemented in the physical space. For example, due to the deviation of the placement of communication equipment (most likely to occur after some communication equipment is unloaded at the delivery point) and the deviation of the transportation path (road closure, diversion), the physical entity and the corresponding digital twin model in the virtual space will be different, and the digital simulation results will no longer be reliable. Therefore, the monitoring module transmits the real-time status of the logistics vehicle and the communication equipment in transportation to the digital simulation module. The digital simulation module uses real-time data to update the digital twin model and continue digital simulation. When the digital simulation indicates that there is a safety risk, the scheduling module sends a risk warning to the logistics personnel.

[0072] For example, according to the initially planned logistics transportation route, it is verified after digital simulation that it can be transported safely. However, due to road closure in the middle of transportation, the transportation route is changed. There is a big bend in a certain section of the new route. The digital simulation results show that if the maximum speed limit of the road is followed, there may be a risk of vehicle rollover due to the high center of gravity of the communication equipment. At this time, the digital simulation module sends a notification to the dispatching module, prompting the logistics personnel to pass at a low speed.

[0073] It can be seen that the present invention provides a logistics distribution and scheduling system based on digital twins, including an order processing module, a logistics resource library module, a digital model library module, a digital simulation module, a scheduling module and a monitoring module. It uses digital twin technology to create a digital model for each communication device in a virtual space, and digitally simulates the entire logistics transportation process to optimize the distribution plan and improve the reliability of communication equipment transportation.

[0074] The following describes it in detail by taking running on a computer terminal as an example. Figure 4 The hardware structure block diagram of a computer terminal of a logistics distribution and scheduling system based on digital twins provided in an embodiment of the present invention. Figure 4 As shown, the computer terminal may include one or more ( Figure 4 Only one is shown in the figure) a processor 402 (the processor 402 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 404 for storing data. Optionally, the computer terminal may also include a transmission device 406 for communication functions and an input and output device 408. It can be understood by those skilled in the art that Figure 4 The structure shown is only for illustration and does not limit the structure of the above-mentioned computer terminal. Figure 4 More or fewer components as shown, or with Figure 4 Different configurations are shown.

[0075] The memory 404 can be used to store software programs and modules of application software, such as program instructions / modules corresponding to the logistics distribution and scheduling system based on digital twins in the embodiment of the present application. The processor 402 executes various functional applications and data processing by running the software programs and modules stored in the memory 404, that is, implementing the above method. The memory 404 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 404 may further include a memory remotely arranged relative to the processor 402, and these remote memories may be connected to the computer terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0076] The transmission device 406 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of a computer terminal. In one example, the transmission device 406 includes a network adapter (Network Interface Controller, NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 406 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0077] The application scheme is further explained below using a logistics distribution case.

[0078] Telecommunications operator A sends a material distribution order to warehousing and logistics provider B, with the delivery date being day Y. The material details are shown in Table 1 below.

[0079] Table 1: Material List

[0080]

[0081] The resource configuration of communications warehousing and logistics provider B is shown in Table 2 below.

[0082] Table 2: Communication warehousing logistics provider B resource allocation table

[0083]

[0084]

[0085] The digital simulation unit generates a delivery plan based on the order and uses a van K(L K >W A +W B +W C +W D), on D day, deliver items A, B, C, and D together, see Figure 5 , Figure 5 A schematic diagram of an optimized delivery path provided by an embodiment of the present invention, wherein the optimized delivery path is: storage location X, location C, location A, location B and storage location X in sequence.

[0086] The digital simulation module obtains the digital models of the corresponding communication equipment (item A, item B, item C, item D) from the digital model library, obtains the digital model of the corresponding vehicle (van F) from the digital model library, and obtains the digital model of the corresponding loading equipment (loading equipment D, loading equipment E) from the digital model library. The digital simulation module solves the three-dimensional packing problem, see Figure 6 , Figure 6 A schematic diagram of a first preliminary packing solution provided in an embodiment of the present invention.

[0087] The digital simulation module performs digital simulation in the virtual space, and uses the digital model of the loading device to load the digital model of the communication equipment into the digital model of the vehicle; the loading process is as follows: use loading device E to load item B to the predetermined position in the carriage, use loading device E to load item D to the predetermined position in the carriage, use loading device E to load item C to the predetermined position in the carriage, and use loading device E to load item A to the predetermined position in the carriage.

[0088] The digital simulation unit uses digital twin technology to perform digital simulation of vehicle transportation. The process is as follows: van K transports items to location C, and construction contractor C uses loading equipment F to unload item D. Since item A is at the door, loading equipment F cannot unload item A, so the packing plan is not feasible.

[0089] The digital simulation module solves the three-dimensional packing problem and generates a second preliminary packing solution. Figure 7 , Figure 7 A schematic diagram of a second preliminary packing solution provided in an embodiment of the present invention.

[0090] The digital simulation module performs digital simulation in the virtual space and uses the digital model of the loading device to load the digital model of the communication equipment into the digital model of the vehicle. The loading process is as follows: use loading device E to load item C to the predetermined position in the carriage, use loading device E to load item A to the predetermined position in the carriage, use loading device E to load item B to the predetermined position in the carriage, and use loading device E to load item D to the predetermined position in the carriage.

[0091] The digital simulation module uses digital twin technology to perform digital simulation of vehicle transportation. The process is as follows: van K transports items to location C, and construction contractor C uses loading equipment F to unload item D; van K transports items to location A, and construction contractor A uses loading equipment E to unload item A; since item B is at the door, loading equipment E must unload / load item A, so the packing solution is inefficient.

[0092] The digital simulation module solves the three-dimensional packing problem and generates the third preliminary packing solution. Figure 8 , Figure 8 A schematic diagram of a third preliminary packing solution provided in an embodiment of the present invention.

[0093] The digital simulation module performs digital simulation in the virtual space, and uses the digital model of the loading device to load the digital model of the communication equipment into the digital model of the vehicle; the loading process is as follows: use loading device E to load item C to the predetermined position in the carriage, use loading device E to load item B to the predetermined position in the carriage, use loading device E to load item A to the predetermined position in the carriage, and use loading device E to load item D to the predetermined position in the carriage.

[0094] The digital simulation module uses digital twin technology to perform digital simulation of vehicle transportation. The process is as follows: van K transports items to location C, and construction contractor C uses loading equipment F to unload item D; van K transports items to location A, and construction contractor A uses loading equipment E to unload item A; van K transports items to location B, and construction contractor B uses loading equipment F to unload items B and item C; van K goes to storage location X.

[0095] The digital simulation module generates a distribution plan P and sends it to the scheduling module. Based on the distribution plan P, the scheduling module sends instructions to the operator through the logistics scheduling APP to guide the vehicle to pack. The scheduling module generates an AR packing diagram based on the distribution plan. The operator wears AR glasses to view the predetermined positions of each item in the carriage through the AR glasses and uses the loading device E to load the communication equipment to the predetermined position in the carriage.

[0096] Driver S drives van K and delivers goods according to delivery plan P. The monitoring module on van K includes a positioning device (GPS) and cameras (low-light cameras J1 and J2 installed in the cargo box). During the delivery process, cameras J1 and J2 monitor the status of communication equipment in real time, and GPS obtains the vehicle position and speed; the monitoring module transmits data to the digital simulation module in real time through the 5G network, and the digital simulation module updates the digital twin image (vehicle, communication equipment) in the virtual space and continues digital simulation.

[0097] Van K transports the items to location C, and construction contractor C uses loading equipment F to unload item D; Van K transports the items to location A, and construction contractor A uses loading equipment E to unload item A. The process is as follows: The digital simulation module performs digital simulation on the transportation process of the next section after item A is unloaded. At this time, the packing diagram is as follows: Fig. 9 As shown, Fig. 9 This is an actual packing diagram of location A provided by an embodiment of the present invention. The digital simulation module detects that item C has a risk of movement during subsequent transportation, and ensures the safety of the item through manual adjustment. The digital simulation module generates an unloading plan Z: use loading device E to unload item A, use loading device E to move item B, and reinforce item C.

[0098] The dispatching module sends instructions to the operator through the logistics dispatching APP according to the unloading plan Z to guide the vehicle to pack: The dispatching module generates an AR packing diagram according to the unloading plan Z. The operator of the construction company A puts on AR glasses and uses the loading device E to unload the item A. The operator of the construction company A uses the loading device E to move the item B to the predetermined position in the car according to the instructions of the AR glasses. After completion, the vehicle packing diagram is as follows Fig.10 As shown, Fig.10 An actual packing diagram of location A after dynamic adjustment provided by an embodiment of the present invention.

[0099] Due to the temporary traffic closure, driver S chooses a new route and sends the new route to the digital simulation module through the logistics scheduling APP. Fig.11 , Fig.11 An updated new path schematic diagram provided for an embodiment of the present invention.

[0100] The digital simulation module simulates the operation process of the new path according to the digital map. There are large bends in the new path. If the maximum speed limit of 40 kilometers is followed, through dynamic simulation, due to the high center of gravity of item B, there is a risk of tipping to the right. The digital simulation module sends a driving plan to the scheduling module, and the speed limit should be 25 kilometers on the large bend section. The scheduling module instructs the driver S to limit the speed to 25 kilometers at the large bend end and pass at a low speed through the logistics scheduling APP. Van K transports the items to location B, and construction contractor B uses loading equipment F to unload items B and C; van K returns to storage location X.

[0101] In the above process, the digital simulation module always maintains the consistency between the virtual space and the physical space through the real-time data collected by the monitoring module, dynamic digital simulation, advanced planning and advanced deployment, which fully reflects the advanced nature of digital twin technology.

[0102] Compared with the prior art, the present invention provides a logistics distribution and scheduling system based on digital twins, including an order processing module, a logistics resource library module, a digital model library module, a digital simulation module, a scheduling module and a monitoring module. It uses digital twin technology to create a digital model for each communication device in a virtual space, and digitally simulates the entire logistics transportation process to optimize the distribution plan and improve the reliability of communication equipment transportation.

[0103] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0104] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0105] In the several embodiments provided by the present invention, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0106] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0107] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0108] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a memory, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the above-mentioned methods of each embodiment of the present invention. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0109] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A logistics distribution and scheduling system based on digital twins, applied to a warehousing logistics management platform built using digital twin technology, characterized in that: The system comprises: Order processing module, logistics resource library module, digital model library module, digital simulation module, scheduling module and monitoring module; among them, The order processing module is used to receive the delivery order of the customer and generate a delivery plan for the communication devices to be delivered; The logistics resource library module is used to store real-time data of physical entities of the logistics management platform, and the physical entities include communication equipment to be delivered, logistics transportation vehicles, loading equipment and logistics transportation routes; The digital model library module is used to generate and store the digital model of the physical entity; The digital simulation module is used to formulate a distribution plan through digital simulation according to the distribution plan, wherein, according to the distribution plan, the communication equipment to be distributed, the logistics transportation vehicle and the loading equipment are obtained in the logistics resource library module; the digital simulation module obtains the digital models corresponding to the communication equipment to be distributed, the logistics transportation vehicle and the loading equipment from the digital model library module, and performs digital simulation in the virtual space, and uses the digital model corresponding to the loading equipment to load the digital model corresponding to the communication equipment to be distributed into the digital model corresponding to the logistics transportation vehicle; the digital simulation module generates a distribution plan according to the digital simulation results; The scheduling module is used to guide the loading and unloading of the communication equipment to be delivered and the logistics transportation of the logistics transportation vehicle according to the delivery plan, wherein the loading of the communication equipment to be delivered is generated according to a genetic algorithm and / or an orthogonal binary tree search algorithm and a three-dimensional loading problem is solved by a digital simulation module; The monitoring module is used to monitor the vehicle status of the logistics transport vehicle and the status of the communication equipment to be delivered, and send the real-time monitoring results to the digital simulation module.

2. The system according to claim 1, characterized in that The performing of digital simulation in the virtual space, using the digital model corresponding to the loading device to load the digital model corresponding to the communication device to be delivered into the digital model corresponding to the logistics transportation vehicle, comprises: According to the preset algorithm, the digital simulation module is used to solve the three-dimensional loading problem and generate a preliminary loading plan; According to the preliminary loading plan, the digital model corresponding to the communication device to be delivered is loaded into the digital model corresponding to the logistics transportation vehicle using the digital model corresponding to the loading device.

3. The system according to claim 2, characterized in that The system further comprises: The digital simulation module performs digital simulation of the transportation of the logistics transport vehicles according to the preliminary loading plan and the logistics transport path, uses the digital model of the local loading equipment to unload the digital model of the communication equipment to be delivered at each delivery point, verifies the feasibility and efficiency of unloading the communication equipment, verifies the stability of the logistics transport vehicles and communication equipment in the subsequent transportation path, optimizes the preliminary loading plan according to the digital simulation results, and generates a distribution plan.

4. The system according to claim 3, characterized in that The system further comprises: The monitoring module is used to monitor the real-time status of the logistics transport vehicle after the communication equipment to be delivered is unloaded, update the digital model in the virtual space, continuously perform digital simulation on the logistics process in the subsequent transportation path, and optimize the subsequent delivery plan when abnormalities occur in the digital simulation results.

5. The system according to claim 4, characterized in that The scheduling module includes a loading scheduling unit, an unloading scheduling unit, a driving scheduling unit, a three-dimensional loading generation unit and an AR loading generation unit. The loading scheduling unit is used to guide the loading of the communication equipment to be delivered according to the distribution plan. The unloading scheduling unit is used to guide the unloading of the communication equipment to be delivered at the delivery point according to the distribution plan. The driving scheduling unit is used to receive the subsequent distribution plan sent by the digital simulation module to guide the adjustment of the logistics transportation path. The three-dimensional loading generation unit is used to generate a three-dimensional loading diagram of the communication equipment to be delivered, and automatically and / or manually load according to the three-dimensional loading diagram. The AR loading generation unit is used to generate an AR loading diagram of the communication equipment to be delivered, and guide the operator to load the communication equipment to be delivered in the logistics transportation vehicle according to the AR guidance through AR glasses or a mobile terminal.

6. The system according to claim 5, characterized in that The loading scheduling unit includes an automatic loading subunit and a manual loading subunit. The automatic loading subunit is used to receive control instructions sent by the scheduling module and control the loading equipment to perform automatic loading. The manual loading subunit is used to receive manual operation instructions sent by the scheduling module to the operator.

7. The system according to any one of claims 1 to 6, characterized in that: The monitoring module includes a positioning unit, a camera unit, a sensor unit, an RFID reader unit and a tire pressure detection system.

8. The system according to claim 7, characterized in that The tire pressure detection system includes: a direct tire pressure detector in the tire and a temperature detector in the tire. The temperature detector in the tire is used to correct the tire pressure detection value, and the corrected tire pressure detection value is used to detect whether there is a center of gravity offset in the logistics vehicle.

9. The system according to any one of claims 1 to 6 and claim 8, characterized in that: The digital model includes: a structural model and a mass distribution model of the communication equipment to be delivered, a cargo box model, a load model and a mass distribution model of the logistics transportation vehicle, an equipment model of the loading equipment, and a digital map model of the logistics transportation route.

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