Real-time benefit evaluation method, device and server

Abstract

The application provides a kind of income real-time evaluation method, device and server, it is related to the technical field of TCE real-time evaluation, including: obtaining voyage information, cost information and real-time navigation information of ship transportation, wherein, voyage information includes ship route and freight, and cost information includes fuel cost;According to the preset encryption interval, set the encryption track point set to the ship route, and determine the unit navigation information of the ship between the current encryption track point and the next encryption track point by using real-time navigation information;Through the pre-established income real-time evaluation model, determine the real-time income based on unit navigation information, freight and fuel cost.The application can significantly improve the timeliness of ship evaluation.

Description

Technical Field

[0001] This invention relates to the technical field of real-time TCE evaluation, and in particular to a real-time revenue evaluation method, apparatus and server. Background Technology

[0002] For voyage charters, the total revenue for a voyage is fixed, and cargo owners do not have strict requirements regarding sailing time. Shipowners need to plan reasonable sailing times to achieve optimal economic efficiency. Currently, related technologies propose using daily sailing revenue as an evaluation method, conducted before and after the voyage to assess the overall revenue for the voyage. However, the long sailing cycle of ships results in poor timeliness of this evaluation method and makes it impossible to quickly adjust the ship's operations based on actual sailing revenue. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a method, apparatus and server for real-time benefit assessment, which can significantly improve the timeliness of ship assessment.

[0004] In a first aspect, embodiments of the present invention provide a method for real-time revenue evaluation, the method comprising: acquiring voyage information, cost information, and real-time navigation information of a ship, wherein the voyage information includes the ship's route and freight, and the cost information includes fuel costs; setting a set of encrypted trajectory points for the ship's route according to a preset encryption interval, and using real-time navigation information to determine the unit navigation information of the ship between the current encrypted trajectory point and the next encrypted trajectory point; and determining real-time revenue based on the unit navigation information, freight, and fuel costs through a pre-established real-time revenue evaluation model.

[0005] In one implementation, the real-time navigation information includes: navigation position and navigation time, and the unit navigation information includes: unit distance and unit navigation time, where the unit distance is a preset encryption interval. The step of determining the unit navigation information of the ship between the current encrypted trajectory point and the next encrypted trajectory point using the real-time navigation information includes: determining the distance between the ship and each encrypted trajectory point using the navigation position, and determining the encrypted trajectory point closest to the ship as the ship's positioning point; determining the time interval for the ship's positioning point to switch to the next encrypted trajectory point using the navigation time, and determining the time interval as the unit navigation time.

[0006] In one embodiment, the real-time navigation information further includes: real-time navigation fuel consumption, and the unit navigation information further includes: unit navigation fuel consumption. The step of determining the unit navigation information of the ship between the current encrypted trajectory point and the next encrypted trajectory point using the real-time navigation information further includes: determining the average fuel consumption within a unit navigation time using the real-time navigation fuel consumption; and determining the unit navigation fuel consumption by multiplying the average fuel consumption by the unit navigation time.

[0007] In one implementation, the unit navigation information further includes: unit navigation speed, and the method includes: when the unit navigation speed increases, increasing the unit navigation fuel consumption based on a preset fuel consumption increment; and when the unit navigation speed decreases, decreasing the unit navigation fuel consumption based on a preset fuel consumption reduction.

[0008] In one implementation, the step of determining real-time revenue based on unit navigation information, freight, and fuel costs using a pre-established real-time revenue evaluation model includes: determining the unit distance revenue by multiplying the quotient of the unit distance and the total distance of the ship's route by the freight cost; determining the unit distance cost by multiplying the unit navigation fuel consumption by the fuel cost; determining the unit distance net profit by the difference between the unit distance revenue and the unit distance cost; and determining the real-time revenue by multiplying the unit distance net profit by the unit navigation time.

[0009] Secondly, embodiments of the present invention also provide a real-time revenue evaluation device, comprising: a ship information acquisition module, which acquires voyage information, cost information, and real-time navigation information of the ship, wherein the voyage information includes the ship's route and freight, and the cost information includes fuel costs; a unit navigation information acquisition module, which sets a set of encrypted trajectory points for the ship's route according to a preset encryption interval, and uses real-time navigation information to determine the unit navigation information of the ship between the current encrypted trajectory point and the next encrypted trajectory point; and a revenue evaluation module, which determines real-time revenue based on the unit navigation information, freight, and fuel costs through a pre-established real-time revenue evaluation model.

[0010] Thirdly, embodiments of the present invention also provide a server, including a processor and a memory, the memory storing computer-executable instructions executable by the processor, the processor executing the computer-executable instructions to implement any of the methods provided in the first aspect.

[0011] Fourthly, embodiments of the present invention also provide a computer-readable storage medium storing computer-executable instructions, which, when invoked and executed by a processor, cause the processor to implement any of the methods provided in the first aspect.

[0012] The embodiments of the present invention bring the following beneficial effects:

[0013] This invention provides a real-time revenue evaluation method, apparatus, and server. After acquiring voyage information, cost information, and real-time navigation information of a ship, it sets up a set of encrypted trajectory points for the ship's route according to a preset encryption interval. It then uses real-time navigation information to determine the unit navigation information of the ship between the current encrypted trajectory point and the next encrypted trajectory point. Through a pre-established real-time revenue evaluation model, it determines the real-time revenue based on the unit navigation information, freight, and fuel costs. By setting up an encrypted trajectory point set and calculating the ship's revenue for each route segment, this invention can significantly improve the timeliness of ship evaluation.

[0014] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained in accordance with the structures particularly pointed out in the description, claims and drawings.

[0015] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 A flowchart illustrating a real-time revenue evaluation method provided in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of an encrypted trajectory point set provided in an embodiment of the present invention;

[0019] Figure 3 A flowchart illustrating another real-time revenue evaluation method provided in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of a real-time revenue evaluation device provided in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Currently, for voyage charter vessels, the total revenue of a voyage is fixed, and cargo owners do not have mandatory requirements for sailing time. Ship owners need to formulate reasonable sailing times to obtain the best economic benefits. Daily sailing revenue is a commonly used evaluation method, and the evaluation is usually carried out before and after the start of the voyage. The corresponding assessment can reflect the revenue of the entire voyage. However, the above evaluation method has poor real-time performance, and a single voyage often takes a long time, sometimes more than a month. Therefore, this scheme has poor real-time performance and cannot quickly reflect the economic situation of the voyage during the voyage. The captain cannot quickly adjust his operation based on the actual sailing revenue. Based on this, the real-time revenue evaluation method provided by this invention can significantly improve the timeliness of ship evaluation by setting up an encrypted set of trajectory points and calculating the ship revenue of each route segment.

[0024] based on Figure 1 The diagram shows a flowchart of a real-time revenue evaluation method, which mainly includes the following steps S102 to S106:

[0025] Step S102: Obtain voyage information, cost information, and real-time navigation information for ship transportation. The voyage information includes the ship's route and freight charges, the cost information includes fuel costs, and the real-time navigation information includes the navigation position, navigation time, and real-time fuel consumption. In one embodiment, real-time navigation information is obtained by installing corresponding hardware and software systems on the ship to achieve real-time data transmission.

[0026] Step S104: Set a set of encrypted trajectory points for the ship's route according to a preset encryption interval, and use real-time navigation information to determine the unit navigation information of the ship between the current encrypted trajectory point and the next encrypted trajectory point. The unit navigation information includes: unit distance, unit navigation time, unit navigation fuel consumption, and unit navigation speed. The unit distance is the preset encryption interval. In one embodiment, such as... Figure 2 The diagram shows a structure of an encrypted trajectory point set. After obtaining a map of ship navigation, encrypted points can be set on the map in the software. The encryption granularity of the encrypted points and the method of segmentation based on time can be adjusted according to actual needs.

[0027] Step S106: Real-time revenue is determined based on unit navigation information, freight, and fuel costs using a pre-established real-time revenue evaluation model. Freight is equal to the product of freight unit price and cargo quantity, and fuel costs are determined by the daily oil price and the type of fuel used by the vessel.

[0028] The real-time revenue evaluation method provided in this embodiment of the invention can significantly improve the timeliness of ship evaluation by setting up an encrypted set of trajectory points and calculating the ship revenue for each route segment.

[0029] Regarding the aforementioned step S104, this embodiment of the invention also provides an implementation method for determining unit navigation information, as detailed in (1) to (2) below:

[0030] (1) Use the navigation position to determine the distance between the ship and each encrypted track point, and determine the encrypted track point closest to the ship as the ship's positioning point. Use the navigation time to determine the time interval between the ship's positioning point and the next encrypted track point, and determine the time interval as the unit navigation time. In practical applications, calculate the distance between the actual ship and each encrypted track point on the route. The closest encrypted point is the ship's positioning point. When the ship's positioning point switches to the next encrypted track point, record the time T. This time is the time to arrive at the encrypted track point.

[0031] (2) The average fuel consumption per unit navigation time is determined using real-time navigation fuel consumption. The product of the average fuel consumption and the unit navigation time is determined as the unit navigation fuel consumption, where the unit navigation fuel consumption represents the fuel consumption value of the ship navigating between two adjacent dense trajectory points. In one embodiment, when the unit navigation speed increases, the unit navigation fuel consumption is increased based on a preset fuel consumption increment; when the unit navigation speed decreases, the unit navigation fuel consumption is decreased based on a preset fuel consumption reduction.

[0032] In one implementation, the product of the quotient of unit distance and total route distance and freight is determined as unit distance revenue; the product of unit voyage fuel consumption and fuel cost is determined as unit distance cost; the difference between unit distance revenue and unit distance cost is determined as unit distance net profit; and the quotient of unit distance net profit and unit voyage time is determined as real-time revenue. In another implementation, real-time revenue may be affected by sea conditions, and sea condition information can be judged through real-time revenue to provide real-time decision support for ship owners.

[0033] To facilitate understanding of the real-time revenue evaluation method provided in the above embodiments, this invention provides an application example of the real-time revenue evaluation method, see below. Figure 3 The flowchart shown is for another real-time benefit evaluation method, which mainly includes the following steps S302 to S306:

[0034] Step S302: Obtain actual ship data information, which includes: voyage information, cost information, and real-time navigation information. Voyage information includes: ship route, voyage freight, and start and end times. Cost information includes: fuel storage, fuel type, and fuel cost. The core data transmitted back by the hardware and software system installed on the actual ship is real-time navigation information, which includes: time, ground speed, longitude, latitude, and fuel consumption data.

[0035] Step S304: By mathematically modeling the route, the route is encrypted. In one implementation, an encryption point can be set every 10 nautical miles. The distance between the actual ship and each encryption point on the route is calculated. The nearest encryption point is the positioning point. When the positioning point switches to the next encryption point, the time T is recorded. This time is the time to reach the encryption point. In another implementation, encryption points can be set on the ship's navigation map.

[0036] Step S306: Calculate the ship's real-time TCE based on the actual ship data and the route encryption processing results. In one embodiment, the route encryption processing results include determining the unit distance, unit travel time, and unit travel fuel consumption. The unit distance is equal to the encryption distance, the unit travel time is the difference between the current encryption point time and the previous encryption point time, and the unit travel fuel consumption is the product of the unit heading time and the average fuel consumption within the unit travel time period.

[0037] In one implementation, TCE is defined as:

[0038]

[0039] In another implementation, by transforming the TCE formula, real-time TCE can provide feedback on the revenue of each discrete flight segment. The calculation formula for real-time TCE is:

[0040]

[0041] In summary, this invention can calculate the sailing time and fuel consumption of segmented routes based on actual ship data by mathematically modeling the route, and then calculate the TCE of each segment. The real-time performance has been greatly improved, solving the problem of poor real-time performance when calculating TCE after the original voyage is completed.

[0042] Regarding the real-time revenue evaluation method provided in the foregoing embodiments, this invention provides a real-time revenue evaluation device, see [link to relevant documentation]. Figure 4 The diagram shows a real-time revenue evaluation device, which includes the following components:

[0043] The ship information acquisition module 402 acquires voyage information, cost information and real-time navigation information of the ship transportation. The voyage information includes the ship route and freight, and the cost information includes fuel costs.

[0044] The unit navigation information acquisition module 404 sets a set of encrypted trajectory points for the ship's route according to a preset encryption interval, and uses real-time navigation information to determine the unit navigation information of the ship between the current encrypted trajectory point and the next encrypted trajectory point;

[0045] The revenue assessment module 406 determines real-time revenue based on unit navigation information, freight, and fuel costs through a pre-established real-time revenue assessment model.

[0046] The data processing device provided in this application embodiment enables real-time data transmission by installing corresponding hardware and software systems on the ship. Based on this, by adjusting the original calculation method, a real-time TCE evaluation is formed, which greatly changes the real-time nature of the original evaluation method and provides decision support for the captain's decision-making.

[0047] In one embodiment, the real-time navigation information includes: navigation position and navigation time, and the unit navigation information includes: unit distance and unit navigation time. The unit distance is a preset encryption interval. When performing the step of determining the unit navigation information of the ship between the current encrypted trajectory point and the next encrypted trajectory point using the real-time navigation information, the unit navigation information acquisition module 404 is further configured to: determine the distance between the ship and each encrypted trajectory point using the navigation position, and determine the encrypted trajectory point closest to the ship as the ship's positioning point; determine the time interval for the ship's positioning point to switch to the next encrypted trajectory point using the navigation time, and determine the time interval as the unit navigation time.

[0048] In one embodiment, the real-time navigation information further includes: real-time navigation fuel consumption, and the unit navigation information further includes: unit navigation fuel consumption. When performing the step of using real-time navigation information to determine the unit navigation information of the ship between the current encrypted trajectory point and the next encrypted trajectory point, the unit navigation information acquisition module 404 is further used to: use real-time navigation fuel consumption to determine the average fuel consumption within a unit navigation time; and multiply the average fuel consumption by the unit navigation time to determine the unit navigation fuel consumption.

[0049] In one embodiment, the unit navigation information further includes: unit navigation speed. The unit navigation information acquisition module 404 is also used to: increase the unit navigation fuel consumption based on a preset fuel consumption increment when the unit navigation speed increases; and decrease the unit navigation fuel consumption based on a preset fuel consumption reduction when the unit navigation speed decreases.

[0050] In one embodiment, when performing the step of determining real-time revenue based on unit navigation information, freight, and fuel costs using a pre-established real-time revenue evaluation model, the aforementioned revenue evaluation module 406 is further configured to: determine the unit distance revenue by multiplying the quotient of the unit distance and the total distance of the ship's route by the freight cost; determine the unit distance cost by multiplying the unit navigation fuel consumption by the fuel cost; determine the unit distance net profit by the difference between the unit distance revenue and the unit distance cost; and determine the real-time revenue by multiplying the unit distance net profit by the unit navigation time.

[0051] The device provided in this embodiment of the invention has the same implementation principle and technical effect as the aforementioned method embodiment. For the sake of brevity, any parts not mentioned in the device embodiment can be referred to the corresponding content in the aforementioned method embodiment.

[0052] This invention provides an electronic device, specifically, the electronic device includes a processor and a storage device; the storage device stores a computer program, and the computer program, when run by the processor, executes the method described in any of the above embodiments.

[0053] Figure 5 The present invention provides a schematic diagram of the structure of an electronic device 100, which includes a processor 50, a memory 51, a bus 52 and a communication interface 53. The processor 50, the communication interface 53 and the memory 51 are connected through the bus 52. The processor 50 is used to execute executable modules, such as computer programs, stored in the memory 51.

[0054] The memory 51 may include high-speed random access memory (RAM) or non-volatile memory, such as at least one disk storage device. Communication between this system network element and at least one other network element is achieved through at least one communication interface 53 (which can be wired or wireless), such as the Internet, wide area network, local area network, metropolitan area network, etc.

[0055] Bus 52 can be an ISA bus, PCI bus, or EISA bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 5 The symbol is represented by a single double-headed arrow, but this does not mean that there is only one bus or one type of bus.

[0056] The memory 51 is used to store programs. After receiving an execution instruction, the processor 50 executes the programs. The method executed by the device for defining the flow process disclosed in any of the foregoing embodiments of the present invention can be applied to the processor 50 or implemented by the processor 50.

[0057] Processor 50 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method can be completed by the integrated logic circuitry in the hardware of processor 50 or by instructions in software form. Processor 50 can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this invention can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory 51. The processor 50 reads the information in memory 51 and, in conjunction with its hardware, completes the steps of the above method.

[0058] The computer program product of the readable storage medium provided in the embodiments of the present invention includes a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the methods described in the foregoing method embodiments. For specific implementation, please refer to the foregoing method embodiments, which will not be repeated here.

[0059] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0060] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for real-time revenue evaluation, characterized in that, The method includes: The system acquires voyage information, cost information, and real-time navigation information for ship transportation. The voyage information includes the ship's route and freight charges, the cost information includes fuel costs, and the real-time navigation information includes time, ground speed, longitude, latitude, and fuel consumption data. The set of encrypted trajectory points is set for the ship's route according to the preset encryption interval, and the unit navigation information of the ship between the current encrypted trajectory point and the next encrypted trajectory point is determined using the real-time navigation information. Real-time revenue is determined based on the unit voyage information, freight, and fuel costs using a pre-established real-time revenue evaluation model. The real-time navigation information includes: navigation position and navigation time; the unit navigation information includes: unit distance and unit navigation time; the unit distance is the preset encryption interval; the step of determining the unit navigation information of the ship between the current encrypted trajectory point and the next encrypted trajectory point using the real-time navigation information includes: determining the distance between the ship and each encrypted trajectory point using the navigation position, and determining the encrypted trajectory point closest to the ship as the ship's positioning point; determining the time interval between the ship's positioning point and the next encrypted trajectory point using the navigation time, and determining the time interval as the unit navigation time; The real-time navigation information further includes real-time navigation fuel consumption, and the unit navigation information further includes unit navigation fuel consumption. The step of determining the unit navigation information of the ship between the current encrypted trajectory point and the next encrypted trajectory point using the real-time navigation information further includes: determining the average fuel consumption within the unit navigation time using the real-time navigation fuel consumption; and determining the unit navigation fuel consumption by multiplying the average fuel consumption by the unit navigation time. The unit navigation fuel consumption represents the fuel consumption value of the ship navigating between two adjacent encrypted trajectory points. The unit navigation information further includes: unit navigation speed, and the method includes: when the unit navigation speed increases, increasing the unit navigation fuel consumption based on a preset fuel consumption increment; when the unit navigation speed decreases, decreasing the unit navigation fuel consumption based on a preset fuel consumption reduction.

2. The method according to claim 1, characterized in that, The step of determining real-time revenue based on the unit voyage information, the freight rate, and the fuel cost using a pre-established real-time revenue evaluation model includes: The product of the quotient of the unit distance and the total distance of the shipping route and the freight is determined as the revenue per unit distance; The product of unit voyage fuel consumption and the fuel cost is determined as the unit distance cost; The difference between the revenue per unit distance and the cost per unit distance is determined as the net profit per unit distance. The quotient of the net profit per unit distance and the net profit per unit travel time is determined as the real-time revenue.

3. A real-time revenue evaluation device, characterized in that, The device includes: The ship information acquisition module acquires voyage information, cost information, and real-time navigation information of the ship. The voyage information includes the ship's route and freight, the cost information includes fuel costs, and the real-time navigation information includes time, speed over land, longitude, latitude, and fuel consumption data. The unit navigation information acquisition module sets a set of encrypted trajectory points for the ship's route according to a preset encryption interval, and uses the real-time navigation information to determine the unit navigation information of the ship between the current encrypted trajectory point and the next encrypted trajectory point; The revenue assessment module determines real-time revenue based on the unit voyage information, freight, and fuel costs using a pre-established real-time revenue assessment model. The real-time navigation information includes: navigation position and navigation time; the unit navigation information includes: unit distance and unit navigation time; the unit distance is the preset encryption interval; the step of determining the unit navigation information of the ship between the current encrypted trajectory point and the next encrypted trajectory point using the real-time navigation information includes: determining the distance between the ship and each encrypted trajectory point using the navigation position, and determining the encrypted trajectory point closest to the ship as the ship's positioning point; determining the time interval between the ship's positioning point and the next encrypted trajectory point using the navigation time, and determining the time interval as the unit navigation time; The real-time navigation information further includes real-time navigation fuel consumption, and the unit navigation information further includes unit navigation fuel consumption. The step of determining the unit navigation information of the ship between the current encrypted trajectory point and the next encrypted trajectory point using the real-time navigation information further includes: determining the average fuel consumption within the unit navigation time using the real-time navigation fuel consumption; and determining the unit navigation fuel consumption by multiplying the average fuel consumption by the unit navigation time. The unit navigation fuel consumption represents the fuel consumption value of the ship navigating between two adjacent encrypted trajectory points. The unit navigation information also includes: unit navigation speed. When the unit navigation speed increases, the unit navigation fuel consumption is increased based on a preset fuel consumption increment; when the unit navigation speed decreases, the unit navigation fuel consumption is decreased based on a preset fuel consumption reduction.

4. A server, characterized in that, The method includes a processor and a memory, the memory storing computer-executable instructions executable by the processor, the processor executing the computer-executable instructions to implement the method of any one of claims 1 to 2.

5. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions that, when invoked and executed by a processor, cause the processor to perform the method described in any one of claims 1 to 2.

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