Cost optimization method, cargo loading method and device and cloud control center of mine charging and battery swapping station

Abstract

The invention discloses a cost optimization method, a cargo loading method and device and a cloud control center of a mine charging and battery swapping station. The optimization method comprises the following steps: firstly, obtaining a peak-valley-flat time period in the time-of-use electricity price of a power grid; then, judging whether the current actual time falls into the power utilization peak time period in the power grid peak-valley-flat time period or not: if the current time is not in the power utilization peak time period, directly charging a non-fully-charged preparation battery of the mine charging and battery swapping station; if the current time is in the power utilization peak period, determining whether to charge the non-fully-charged preparation batteries in the mine charging and battery swap station according to the relationship between the number of the non-fully-charged preparation batteries of the mine charging and battery swap station and the number of the low-electric-quantity mine cards; the low-electric-quantity mine cards refer to mine cards of which the residual electric quantity is lower than a second threshold value of battery charging and replacing. Through the method, the charging strategy can be flexibly adjusted, the electric power cost is effectively reduced, the economic benefit of mine operation is improved, and meanwhile reasonable utilization of resources and improvement of the operation efficiency are promoted.

Description

Technical Field

[0001] The present invention belongs to the field of new energy technology, and specifically relates to a cost optimization method, a cargo loading method, a device and a cloud control center for a mine charging and swapping station. Background Art

[0002] Industrial environments such as mines often face hazardous factors such as harmful gases, high temperatures and high pressures, which increase the safety risks for operators. To address this problem, the introduction of unmanned mining vehicles greatly reduces the chances of workers directly coming into contact with dangerous environments, significantly improving operational safety. This technological innovation provides a safer solution for mining operations.

[0003] However, unmanned mining vehicles will inevitably consume electricity during operation, which brings the challenge of how to reduce electricity costs. Although unmanned mining vehicles effectively improve safety, the increase in electricity costs may affect the overall operating efficiency of mines.

[0004] At present, the existing technology has not effectively solved the problem of reducing electricity costs. Although a number of patent technologies have attempted to optimize the electricity costs of unmanned mining vehicles, there are still certain limitations. For example, patent CN202310655310.6 proposes a system based on historical energy consumption data to estimate operating energy consumption and calculate the timing of battery replacement. Although the calculation process is simplified, the additional cost required to establish and maintain a historical database does not achieve effective optimization of operating costs. In addition, patent CN202410420739.1 uses the relationship between the remaining power of the mining vehicle after each cargo task is completed and the set threshold as the basis for battery replacement, and uses the particle swarm algorithm to minimize the time and energy consumption of the battery replacement task. Although it can achieve shorter time and lower energy consumption battery replacement, it increases the overall computational complexity and complexity of the system, and lacks economic analysis from the perspective of reducing the operating costs of battery replacement stations.

[0005] Therefore, there is an urgent need to develop new technologies and strategies to optimize the use of electricity, reduce operating costs, and thus improve the economic benefits of mines. Summary of the invention

[0006] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art and propose a cost optimization method, cargo loading method, device and cloud control center for a mine charging and swapping station. The method can flexibly adjust the charging strategy to charge low-power mining trucks in a more economical way, thereby effectively reducing electricity costs, improving the economic benefits of mine operations, and promoting the rational use of resources and improving operating efficiency.

[0007] In a first aspect, the present invention provides a cost optimization method for a mine charging and swapping station, the method comprising the following steps:

[0008] Obtain the peak, valley and flat time periods of the power grid in the power grid time-of-use electricity price;

[0009] Determine whether the current actual time falls within the peak, valley and flat time period of the power grid

[0010] peak hours:

[0011] If the current actual time does not fall into the peak period of electricity consumption in the peak-valley-flat time period of the power grid, the partially charged standby batteries in the mine charging and swapping station are directly charged; if the current actual time falls into the peak period of electricity consumption in the peak-valley-flat time period of the power grid, according to the relationship between the number of partially charged standby batteries in the mine charging and swapping station and the number of low-power mining cards, the partially charged standby batteries in the mine charging and swapping station are charged or not charged, so as to achieve cost optimization of the mine charging and swapping station;

[0012] The low-battery mining card is a mining card whose remaining battery power is lower than the second threshold value for battery charging and replacement.

[0013] Furthermore, the step of determining whether the current actual time falls before the peak power consumption period in the peak, valley and flat time period of the power grid further includes: obtaining a partially charged spare battery in a mine charging and swapping station,

[0014] The method of obtaining the partially charged spare battery in the mine charging and swapping station specifically includes:

[0015] Compare the reserve battery power in the mine charging and swapping station with the fully charged battery power to obtain a comparison result;

[0016] According to the comparison result, the spare batteries with a power less than the full power are screened out, that is, the partially charged spare batteries in the mine charging and swapping station are obtained.

[0017] Furthermore, according to the relationship between the number of partially charged standby batteries in the mine charging and swapping station and the number of low-power mining cards, the partially charged standby batteries in the mine charging and swapping station are charged or not charged, which specifically includes the following steps:

[0018] Obtain the number α of uncharged standby batteries in the mine charging and swapping station; and obtain the remaining power of all current mining cards;

[0019] According to the remaining power of the mining card, the number β of low-power mining cards below the second threshold value of battery charging and replacement is calculated;

[0020] According to the number α of the partially charged spare batteries available in the mine charging and swapping station and the number β of the low-power mining cards, it is determined whether it is necessary to store or not store power for the partially charged spare batteries in the mine charging and swapping station;

[0021] Among them, if β is less than or equal to the number of available partially charged reserve batteries, that is, β≤n-α, the partially charged reserve batteries are not charged; if β is greater than the number of available partially charged reserve batteries, that is, β>n-α, the partially charged reserve batteries in the mine charging and swapping station are charged;

[0022] Among them, n is the number of reserve batteries in the mine charging and swapping station.

[0023] Furthermore, the partially charged spare batteries in the mine charging and swapping station are charged, and the number of the partially charged spare batteries is min{(α+β-n),α};

[0024] Where min{} is the minimum value function.

[0025] In a second aspect, the present invention provides a cargo loading method, the method comprising the following steps:

[0026] Get cargo missions;

[0027] According to the cargo-carrying task, the mine cart is deployed to carry out cargo-carrying;

[0028] Among them, when a cargo task is completed, it is determined whether the current remaining power of the mining car is less than the first threshold of battery charging and replacement:

[0029] If the current remaining power of the mining car is less than the first battery charging and replacing threshold, the mining car is guided to the mine charging and replacing station for battery charging and replacing, otherwise the cargo carrying task continues until the cargo carrying task is completed;

[0030] Among them, the battery charging and battery replacement includes battery charging and battery replacement. The battery replacement is to replace the battery with insufficient remaining power in the mining truck with a spare battery. The spare battery is obtained by storing or not storing electricity using the cost optimization method of the mine charging and swapping station described in the first aspect.

[0031] Furthermore, the priority of the battery replacement is higher than the priority of the battery charging, and the battery charging is achieved through charging piles set up in the mine charging and replacement station.

[0032] In a third aspect, the present invention provides a cost optimization device for a mine charging and swapping station, the device comprising:

[0033] The first acquisition unit is used to acquire the peak, valley and flat time periods of the power grid in the power grid time-of-use electricity price;

[0034] A determination unit, connected to the first acquisition unit, for determining whether the current actual time falls into a peak power consumption period in the peak, valley and flat time period of the power grid;

[0035] The second acquisition unit is used to acquire the partially charged spare battery in the mine charging and swapping station;

[0036] A first power storage unit is connected to the determination unit and the second acquisition unit respectively, and is used to directly store power in the partially charged standby battery in the mine charging and swapping station when the determination unit determines that the current actual time does not fall into the peak power consumption period in the peak, valley and flat time period of the power grid;

[0037] A second power storage unit is connected to the determination unit and the second acquisition unit respectively, and is used to store or not store power for the partially charged standby battery in the mine charging and swapping station according to the relationship between the number of partially charged standby batteries and the number of low-power mining cards in the mine charging and swapping station when the determination unit determines that the current actual time falls into the peak power consumption period in the peak, valley and flat time period of the power grid;

[0038] The low-battery mining card is a mining card whose remaining battery power is lower than the second threshold value for battery charging and replacement.

[0039] Furthermore, the second acquiring unit includes:

[0040] A comparison module is used to compare the power of the reserve battery in the mine charging and swapping station with the full power of the battery to obtain a comparison result;

[0041] The screening module is connected to the comparison module and is used to screen out the spare batteries with less than full power according to the comparison results, that is, to obtain the partially charged spare batteries in the mine charging and swapping station.

[0042] Furthermore, the second power storage unit includes:

[0043] An acquisition module is used to obtain the number α of uncharged standby batteries in the mine charging and swapping station; and to obtain the remaining power of all current mining cards;

[0044] A calculation module, connected to the acquisition module, for calculating the number β of low-power mining cards below the second battery charging and replacement threshold according to the remaining power of the mining cards;

[0045] A determination module, connected to the calculation module, for determining whether it is necessary to store or not store power for the partially charged reserve batteries in the mine charging and swapping station according to the number α of the partially charged reserve batteries available in the mine charging and swapping station and the number β of the low-power mining cards;

[0046] a processing module connected to the determination module, and configured to not store electricity in the partially charged standby battery when the determination module determines that β is less than or equal to the number of available partially charged standby batteries, that is, β≤n-α; and to store electricity in the partially charged standby battery in the charging and swapping station when the determination module determines that β is greater than the number of available partially charged standby batteries, that is, β>n-α;

[0047] Among them, n is the number of reserve batteries in the mine charging and swapping station.

[0048] In a fourth aspect, the present invention provides an intelligent cloud control center, the intelligent cloud control center comprising:

[0049] at least one processor; and

[0050] a memory communicatively coupled to the at least one processor; wherein

[0051] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the cost optimization method of the mine charging and swapping station described in the first aspect, or execute the cargo loading method described in the second aspect.

[0052] The present invention flexibly adjusts the charging strategy to adapt to the time-of-use electricity price of the power grid and accurately controls the timing and quantity of charging, thereby achieving efficient utilization of resources. The specific effective effects are as follows:

[0053] 1. Reduce electricity costs

[0054] The present invention avoids charging during peak hours of electricity consumption by analyzing the peak, valley and flat time periods in the time-of-use electricity price of the power grid, thereby charging during periods with lower electricity prices, significantly reducing overall electricity expenditures. When the number of fully charged standby batteries in a mine charging and swapping station is insufficient, the present invention can supplement charging by adding charging piles, thereby improving the fault tolerance of the mine charging and swapping station, reducing the waiting time for mining trucks to stop operating, and enhancing economic benefits. According to the time-of-use electricity price of the regional power grid, the strategy of charging during non-peak hours and reducing or stopping charging during peak hours is adopted, which not only reduces the operating cost of the charging and swapping station, but also realizes peak shaving and valley filling of the power grid, reducing the burden on the power grid.

[0055] 2. Optimize battery usage

[0056] The present invention reasonably determines whether to charge based on the relationship between the number of uncharged standby batteries and the number of low-power mining trucks in the charging and swapping station. This strategy maximizes the use of battery resources and ensures that charging is only performed when necessary, thereby extending the battery life.

[0057] 3. Improve mine operation efficiency

[0058] The flexible charging strategy of the present invention ensures that the battery is charged in an appropriate time, avoiding the mine truck from stopping due to insufficient power. This scheduling optimization improves the operating efficiency of the mine and ensures the continuity of production.

[0059] 4. Promote the rational use of resources

[0060] The present invention realizes efficient allocation of resources by intelligently judging the battery charging demand, effectively utilizes the electric energy of the reserve battery, prevents waste of resources, and optimizes the management of overall operation resources.

[0061] 5. Enhance system flexibility

[0062] The present invention can quickly adjust charging decisions according to actual conditions and improve the adaptability of the system. This flexibility enables charging and swapping stations to respond to emergencies and market changes and maintain efficient operation.

[0063] 6. Reduce environmental burden

[0064] The present invention charges during periods when the power price of the power grid is relatively low, reasonably arranges power consumption, and reduces power demand during peak periods, thereby reducing carbon emissions and promoting sustainable development. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 This is an optimization flow chart for reducing the cost of a mine charging and swapping station based on the time-of-use electricity price of the power grid in an embodiment of the present invention;

[0066] Figure 2 It is a schematic diagram of a cost optimization method for a mine charging and swapping station in an embodiment of the present invention;

[0067] Figure 3 This is a cost optimization framework diagram of a mine charging and swapping station in an embodiment of the present invention;

[0068] Figure 4 It is a schematic diagram of the operation of the intelligent cloud control center in an embodiment of the present invention;

[0069] Figure 5 This is a schematic diagram of the operation of a mining truck in an embodiment of the present invention;

[0070] Figure 6 It is a schematic diagram of a cost optimization device for a mine charging and swapping station in an embodiment of the present invention;

[0071] Among them, the reference numerals are: 10, first acquisition unit, 20, determination unit, 30, second acquisition unit, 40, first power storage unit, 50, second power storage unit. DETAILED DESCRIPTION

[0072] In order to enable those skilled in the art to better understand the technical solution of the present invention, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0073] It should be understood that the specific embodiments and drawings described herein are only used to explain the present invention rather than to limit the present invention.

[0074] It can be understood that, in the absence of conflict, the various embodiments of the present invention and the various features in the embodiments can be combined with each other.

[0075] It can be understood that, for the convenience of description, the drawings of the present invention only show the parts related to the present invention, while the parts irrelevant to the present invention are not shown in the drawings.

[0076] It can be understood that each unit and module involved in the embodiments of the present invention may correspond to only one physical structure, or may be composed of multiple physical structures, or multiple units and modules may be integrated into one physical structure.

[0077] It can be understood that, without conflict, the functions and steps marked in the flowcharts and block diagrams of the present invention may occur in an order different from that marked in the drawings.

[0078] It is understood that the flowcharts and block diagrams of the present invention illustrate the possible architectures, functions, and operations of the systems, devices, equipment, and methods according to the various embodiments of the present invention. Each box in the flowchart or block diagram may represent a unit, module, program segment, or code, which contains executable instructions for implementing the specified functions. Moreover, each box or combination of boxes in the block diagram and flowchart may be implemented by a hardware-based system that implements the specified functions, or may be implemented by a combination of hardware and computer instructions.

[0079] It can be understood that the units and modules involved in the embodiments of the present invention can be implemented by software or hardware. For example, the units and modules can be located in a processor.

[0080] Embodiment 1:

[0081] like Figure 1 and Figure 2 As shown, this embodiment provides a cost optimization method for a mine charging and battery swapping station, which is mainly used in the mining industry to improve the efficiency of mine transportation management and reduce electricity expenditure. In this scenario, by implementing a time-sharing charging strategy, charging is carried out during the off-peak period of the power grid, and the reserve battery is reasonably scheduled to ensure sufficient backup power during peak periods, thereby reducing the cost pressure caused by rising electricity prices. At the same time, the introduction of intelligent monitoring systems and data analysis can track the charging and battery swapping status in real time, optimize the priority of the charging and battery swapping procedures, and improve the efficiency of equipment use, which not only reduces the overall operating costs, but also improves the economic benefits and sustainable development capabilities of the mine.

[0082] The method first obtains the peak, valley and flat time periods in the power grid's time-of-use electricity price; then, it determines whether the current actual time falls into the peak power consumption period in the peak, valley and flat time period of the power grid: if the current time is not in the peak power consumption period, the partially charged standby batteries in the mine charging and swapping station are directly charged; if the current time is in the peak power consumption period, it is necessary to decide whether to charge the partially charged standby batteries in the charging and swapping station based on the relationship between the number of partially charged standby batteries in the mine charging and swapping station and the number of low-power mining cards. The low-power mining card here refers to a mining card whose remaining power is lower than the second threshold value of battery charging and swapping. Through this method, the charging strategy can be flexibly adjusted to effectively reduce electricity costs, improve the economic benefits of mine operations, and promote the rational use of resources and improve operating efficiency. The specific steps of this method are as follows:

[0083] Get the peak, valley and flat time periods of the power grid in the power grid time-of-use electricity price.

[0084] The grid time-of-use electricity price is an electricity price strategy established based on the peak and off-peak periods of electricity consumption, and is usually divided into peak hours, off-peak hours and normal times. In this embodiment, the focus is on the difference in electricity prices between peak and off-peak time periods. Peak period refers to the period when electricity demand reaches its peak, when electricity consumption increases rapidly, resulting in relatively high electricity prices. This situation usually occurs during the day on weekdays, especially during the morning and evening commuting hours. In order to effectively manage electricity demand, power companies will increase electricity prices during this period to remind users to plan their electricity use reasonably. Off-peak hours refer to periods when electricity demand is relatively low, and electricity prices are often cheaper. These periods usually occur late at night or on weekends, during which users can significantly reduce their electricity bills by charging or using electricity.

[0085] Determine whether the current actual time falls into the peak power consumption period in the peak, valley and flat time period of the power grid:

[0086] If the current actual time does not fall into the peak electricity consumption period among the peak, valley and flat time periods of the power grid, the partially charged standby batteries in the mine charging and swapping station are directly charged; if the current actual time falls into the peak electricity consumption period among the peak, valley and flat time periods of the power grid, the partially charged standby batteries in the mine charging and swapping station are charged or not charged according to the relationship between the number of partially charged standby batteries in the mine charging and swapping station and the number of low-power mining cards, so as to complete the cost optimization of the mine charging and swapping station; the low-power mining card is a mining card whose remaining power is lower than the second threshold value of battery charging and swapping.

[0087] like Figure 5As shown in the figure, mining trucks operate efficiently between loading points, unloading points and charging and swapping stations. These mining trucks are responsible for transporting raw materials and products within the mine. They first load ore or other materials at the loading point and then transport them to the unloading point for unloading. During this process, mining trucks need to go to charging and swapping stations regularly to charge or replace batteries to ensure the continuity and efficiency of transportation operations. Charging and swapping stations provide mining trucks with necessary power support to ensure that mining trucks always maintain sufficient power during transportation, avoiding downtime and waiting time caused by insufficient power, thereby improving overall operating efficiency and productivity. This operating mode not only improves the logistics efficiency of the mine, but also optimizes the use and management of batteries, making resource allocation more reasonable, and ensuring the dual goals of economy and environmental protection in the process of mining operations.

[0088] As a specific implementation method, the determination of whether the current actual time falls before the peak power consumption period in the peak, valley and flat time period of the power grid further includes: obtaining a fully charged spare battery in a mine charging and swapping station,

[0089] The method of obtaining the partially charged spare battery in the mine charging and swapping station specifically includes:

[0090] Compare the reserve battery power in the mine charging and swapping station with the fully charged battery power to obtain a comparison result;

[0091] According to the comparison result, the spare batteries with a power less than the full power are screened out, that is, the partially charged spare batteries in the mine charging and swapping station are obtained.

[0092] As a specific implementation method, according to the relationship between the number of partially charged standby batteries in the mine charging and swapping station and the number of low-power mining cards, the partially charged standby batteries in the mine charging and swapping station are charged or not charged, which specifically includes the following steps:

[0093] Obtain the number α of uncharged standby batteries in the mine charging and swapping station; and obtain the remaining power of all current mining cards;

[0094] According to the remaining power of the mining card, the number β of low-power mining cards below the second threshold value of battery charging and replacement is calculated;

[0095] According to the number α of the partially charged spare batteries available in the mine charging and swapping station and the number β of the low-power mining cards, it is determined whether it is necessary to store or not store power for the partially charged spare batteries in the mine charging and swapping station;

[0096] Among them, if β is less than or equal to the number of available partially charged reserve batteries, that is, β≤n-α, the partially charged reserve batteries are not charged; if β is greater than the number of available partially charged reserve batteries, that is, β>n-α, the partially charged reserve batteries in the mine charging and swapping station are charged;

[0097] Among them, n is the number of reserve batteries in the mine charging and swapping station.

[0098] As a specific implementation method, the partially charged spare batteries in the mine charging and swapping station are charged, and the number of the partially charged spare batteries is min{(α+β-n),α};

[0099] Where min{} is the minimum value function.

[0100] In this embodiment, the meanings of the first battery charging / replacing threshold (or simply referred to as the first threshold) and the second battery charging / replacing threshold (or simply referred to as the second threshold) are specifically as follows:

[0101] 1. The first threshold ε1=0.2Q is the battery replacement threshold of the mining truck. After the mining truck completes a cargo-carrying task, if the remaining battery power is lower than the first threshold, it needs to go to the charging and battery replacement station for charging and battery replacement, otherwise, continue to execute the transportation procedure.

[0102] 2. The second threshold ε2 = 0.4Q. The difference between the first threshold and the second threshold is 0.2Q. This amount of power can support the operation of the mining truck for 50 minutes, which is exactly the time it takes for the battery in the battery swap station to charge from 20% of the full power to the full power. During peak hours, there are mining trucks with a remaining power lower than the second threshold, and the number of these mining trucks is greater than the number of fully charged batteries in the battery swap station. The intelligent cloud control center will start the power storage program for the corresponding number of uncharged reserve batteries in the battery swap station.

[0103] In order to make this embodiment easier to understand, it will be further described below with reference to the accompanying drawings. Figure 1 and Figure 3 As shown, this embodiment provides an optimization method for reducing the cost of mine charging and swapping stations based on the time-of-use electricity price of the power grid, and the method specifically includes the following steps:

[0104] Step 1: The intelligent cloud control center determines whether it is the peak period of electricity consumption, and obtains the power information of the n backup batteries in the battery swap station and the remaining power information of the m mining trucks.

[0105] Among them, Bi (0≤i≤n) represents the power of the Ai (0≤i≤n)th backup battery in the battery swap station, and D k (0≤k≤m) represents the Cth k (0≤k≤m) The remaining power of the mining truck, Q represents the total capacity of the battery.

[0106] Figure 4A structural schematic diagram of an optimization method for reducing the cost of mine charging and swapping stations based on the time-of-use electricity price of the power grid provided in this embodiment, wherein the intelligent cloud control center is the hub of the entire control system, responsible for confirming whether the current period is a peak period of electricity consumption, while monitoring the power information of the backup batteries in the swapping station and the remaining power information of the mining card, and ultimately controlling the specific storage and charging and swapping methods of the charging and swapping station and the mining card.

[0107] Step 2: If it is a non-peak period, compare the power Bi (0≤i≤n) of the reserve battery Ai (0≤i≤n) in the battery swap station returned by the intelligent cloud control center with the full battery power Q.

[0108] B i <Q (1)

[0109] If there exists Bi that satisfies equation (1), it is necessary to store Ai immediately to store low-cost electricity and reduce the overall electricity cost.

[0110] Step three: If the current electricity consumption period is at peak, it is necessary to calculate the number of partially charged backup batteries in the battery swap station and the number of mining trucks with remaining power less than 40% of the total power, and then conduct a classification discussion to determine the storage method of the backup batteries during peak electricity consumption periods.

[0111] First, compare the power Bi (0≤i≤n) of the reserve battery Ai (0≤i≤n) in the battery swap station returned by the intelligent cloud control center with the full battery power Q. The number of all spare batteries that satisfy formula (1) is recorded as α, which represents the number of fully charged reserve batteries in the battery swap station.

[0112] Then, the mining card C returned by the intelligent cloud control center k (0≤k≤m) remaining power D k (0≤k≤m) is compared with the second threshold ε2=0.4Q, and the comparison formula is as follows:

[0113] D k <ε2 (2)

[0114] The number of mining cards that satisfy formula (2) is recorded as β, which represents the number of mining cards with remaining power less than 40% of the total power.

[0115] Finally, β and n-α are classified and discussed, and the specific storage methods of backup batteries during peak hours are obtained, including:

[0116] If β≤n-α, it means that the number of fully charged spare batteries can meet the subsequent mining truck battery replacement needs. In this way, the partially charged batteries in the battery replacement station do not need to be charged in advance, so as to ensure that no power is stored during peak power consumption periods.

[0117] If β>n-α, it means that the number of fully charged spare batteries cannot meet the subsequent mining truck battery replacement needs, then it is necessary to immediately store the min{α+β-n,α} fully charged batteries in the battery replacement station, so as to ensure that as little power is stored as possible during peak power consumption hours.

[0118] Among them, the second threshold ε2=0.4Q, the difference between the first threshold and the second threshold is 0.2Q, and the time that this part of electricity supports the operation of the mining truck is equivalent to the time it takes for the reserve battery in the battery swap station to charge from 20% to full power.

[0119] Step 4: After each cargo task is completed, the mining truck C returned by the intelligent cloud control center k (0≤k≤m) remaining power D k (0≤k≤m) is compared with the first threshold ε1=0.2Q, and the comparison formula is as follows:

[0120] D k <ε1 (3)

[0121] The mining truck that satisfies formula (3) is the mining truck that needs to be charged and replaced. The mining truck should be immediately guided to the charging and replacement station for charging and replacement, otherwise the transportation command will continue to be executed.

[0122] If there is a reserve battery Ai (0≤i≤n) whose charge Bi (0≤i≤n) satisfies

[0123] B i =Q (4)

[0124] The mining card should give priority to the battery replacement procedure and go to the battery replacement station to replace the fully charged spare battery Ai, otherwise go to the idle charging pile to perform the charging procedure.

[0125] Among them, the first threshold ε1=0.2Q is the battery replacement threshold of the mining card. If the remaining power of the mining card is lower than the battery replacement threshold, the mining card will be immediately guided to the battery replacement station for charging and battery replacement. Otherwise, the transportation command will continue to be executed. At the same time, the battery replacement program will be given priority in the battery replacement program and the charging program to save time cost.

[0126] Steps 2 and 3 strictly follow the basic logic that the reserve battery stores electricity during non-peak hours as much as possible, and does not store electricity during peak hours, or stores as little electricity as possible.

[0127] In addition, conventional mine swap stations only have the ability to swap batteries. When the number of mining trucks is much larger than the number of reserve batteries, and the batteries used in mining trucks generally have a large capacity and a long charging time, for example, in the mines used in the present invention, the battery capacity of mining trucks reaches 800KWh, and it generally takes 45 minutes to charge from 20% of the full power to the full power. This may cause the mining truck to need to be charged and swapped, but there is no fully charged spare battery, which leads to the inability to perform normal battery swap. In order to avoid the phenomenon of mining trucks stopping and waiting for battery swapping, and to enhance the ability of the power swap station to swap batteries, this embodiment adds a certain number of charging piles next to the power swap station. When there is no fully charged spare battery in the power swap station, the mining truck can be guided to charge, thereby improving the ability of the power swap station to swap batteries, reducing the time cost of waiting for the mining truck to stop, and enhancing the economic benefits of the use of the mining truck.

[0128] The design advantages of this embodiment are as follows:

[0129] The first advantage: the reserve batteries in the battery swap station are charged as much as possible during non-peak hours, and not charged or charged as little as possible during peak hours.

[0130] The second advantage: Among the battery replacement program and charging program, the needs of the battery replacement program are given priority.

[0131] The third advantage: If it is currently off-peak and the electricity price is low, the partially charged batteries in the battery swap station should be charged immediately to store low-priced electricity, thereby reducing the overall electricity cost.

[0132] The fourth advantage: During peak hours, electricity prices are high, and the partially charged batteries in the battery swap station are not charged immediately. At this time, it is necessary to analyze according to the parameters α, β and n: if the number of spare fully charged batteries can meet the subsequent battery swap needs of mining trucks (i.e., the conditions are met), there is no need to charge in advance; if the number of spare fully charged batteries is not enough to meet the demand, it is necessary to immediately charge the min{α+β-n,α} partially charged batteries in the battery swap station to ensure that charging is minimized during peak electricity price periods.

[0133] Through the design of the above advantages, this embodiment can optimize the operating efficiency of the battery swap station and reduce electricity costs.

[0134] Embodiment 2:

[0135] like Figure 1 As shown, this embodiment provides a cargo loading method, the method comprising the following steps:

[0136] Get cargo missions;

[0137] According to the cargo-carrying task, the mine cart is deployed to carry out cargo-carrying;

[0138] Among them, when a cargo task is completed, it is determined whether the current remaining power of the mining car is less than the first threshold of battery charging and replacement:

[0139] If the current remaining power of the mining car is less than the first battery charging and replacing threshold, the mining car is guided to the mine charging and replacing station for battery charging and replacing, otherwise the cargo carrying task continues until the cargo carrying task is completed;

[0140] Among them, the battery charging and battery replacement includes battery charging and battery replacement. The battery replacement is to replace the battery with insufficient remaining power in the mining card with a spare battery. The spare battery is obtained by storing or not storing electricity using the cost optimization method of the mine charging and swapping station described in Example 1.

[0141] As a specific implementation manner, the priority of the battery replacement is higher than the priority of the battery charging, and the battery charging is achieved through charging piles set up in the mine charging and replacement station.

[0142] Embodiment 3:

[0143] like Figure 6 As shown, this embodiment provides a cost optimization device for a mine charging and swapping station, the device comprising:

[0144] The first acquisition unit 10 is used to acquire the peak, valley and flat time periods of the power grid in the power grid time-of-use electricity price;

[0145] The determination unit 20 is connected to the first acquisition unit 10 and is used to determine whether the current actual time falls into the peak power consumption period in the peak, valley and flat time period of the power grid;

[0146] The second acquisition unit 30 is used to acquire the partially charged spare battery in the mine charging and swapping station;

[0147] The first power storage unit 40 is connected to the determination unit 20 and the second acquisition unit 30 respectively, and is used to directly store power in the partially charged standby battery in the mine charging and swapping station when the determination unit determines that the current actual time does not fall into the peak power consumption period in the peak, valley and flat time period of the power grid;

[0148] The second power storage unit 50 is connected to the determination unit 20 and the second acquisition unit 30 respectively, and is used to store or not store power for the partially charged standby batteries in the mine charging and swapping station according to the relationship between the number of partially charged standby batteries and the number of low-power mining cards in the mine charging and swapping station when the determination unit determines that the current actual time falls into the peak power consumption period in the peak, valley and flat time period of the power grid;

[0149] The low-battery mining card is a mining card whose remaining battery power is lower than the second threshold value for battery charging and replacement.

[0150] As a specific implementation, the second acquisition unit 30 includes:

[0151] A comparison module is used to compare the power of the reserve battery in the mine charging and swapping station with the full power of the battery to obtain a comparison result;

[0152] The screening module is connected to the comparison module and is used to screen out the spare batteries with less than full power according to the comparison results, that is, to obtain the partially charged spare batteries in the mine charging and swapping station.

[0153] As a specific implementation, the second power storage unit 50 includes:

[0154] An acquisition module is used to obtain the number α of uncharged standby batteries in the mine charging and swapping station; and to obtain the remaining power of all current mining cards;

[0155] A calculation module, connected to the acquisition module, for calculating the number β of low-power mining cards below the second battery charging and replacement threshold according to the remaining power of the mining cards;

[0156] A determination module, connected to the calculation module, for determining whether it is necessary to store or not store power for the partially charged reserve batteries in the mine charging and swapping station according to the number α of the partially charged reserve batteries available in the mine charging and swapping station and the number β of the low-power mining cards;

[0157] a processing module connected to the determination module, and configured to not store electricity in the partially charged standby battery when the determination module determines that β is less than or equal to the number of available partially charged standby batteries, that is, β≤n-α; and to store electricity in the partially charged standby battery in the charging and swapping station when the determination module determines that β is greater than the number of available partially charged standby batteries, that is, β>n-α;

[0158] Among them, n is the number of reserve batteries in the mine charging and swapping station.

[0159] The device in this embodiment can execute the method in embodiment 1.

[0160] Embodiment 4:

[0161] like Figure 4 As shown, this embodiment provides an intelligent cloud control center, and the intelligent cloud control center includes:

[0162] at least one processor; and

[0163] a memory communicatively coupled to the at least one processor; wherein

[0164] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the cost optimization method of the mine charging and swapping station described in Example 1, or execute the cargo loading method described in Example 2.

[0165] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A cost optimization method for a mine charging and swapping station, characterized in that: The method comprises the following steps: Obtain the peak, valley and flat time periods of the power grid in the power grid time-of-use electricity price; Determine whether the current actual time falls into the peak power consumption period in the peak, valley and flat time period of the power grid: If the current actual time does not fall into the peak period of electricity consumption in the peak-valley-flat time period of the power grid, the partially charged standby batteries in the mine charging and swapping station are directly charged; if the current actual time falls into the peak period of electricity consumption in the peak-valley-flat time period of the power grid, according to the relationship between the number of partially charged standby batteries in the mine charging and swapping station and the number of low-power mining cards, the partially charged standby batteries in the mine charging and swapping station are charged or not charged, so as to achieve cost optimization of the mine charging and swapping station; The low-battery mining card is a mining card whose remaining battery power is lower than the second threshold value for battery charging and replacement.

2. The cost optimization method of a mine charging and swapping station according to claim 1, characterized in that: The step of judging whether the current actual time falls before the peak power consumption period in the peak-valley-flat time period of the power grid also includes: obtaining a fully charged spare battery in a mine charging and swapping station, The method of obtaining the partially charged spare battery in the mine charging and swapping station specifically includes: Compare the reserve battery power in the mine charging and swapping station with the fully charged battery power to obtain a comparison result; According to the comparison result, the spare batteries with a power less than the full power are screened out, that is, the partially charged spare batteries in the mine charging and swapping station are obtained.

3. The cost optimization method for a mine charging and swapping station according to claim 1 or 2, characterized in that: According to the relationship between the number of partially charged standby batteries in the mine charging and swapping station and the number of low-power mining cards, the partially charged standby batteries in the mine charging and swapping station are charged or not charged, specifically including the following steps: Obtain the number α of uncharged standby batteries in the mine charging and swapping station; and obtain the remaining power of all current mining cards; According to the remaining power of the mining card, the number β of low-power mining cards below the second threshold value of battery charging and replacement is calculated; According to the number α of the partially charged spare batteries available in the mine charging and swapping station and the number β of the low-power mining cards, it is determined whether it is necessary to store or not store power for the partially charged spare batteries in the mine charging and swapping station; Among them, if β is less than or equal to the number of available partially charged reserve batteries, that is, β≤n-α, the partially charged reserve batteries are not charged; if β is greater than the number of available partially charged reserve batteries, that is, β>n-α, the partially charged reserve batteries in the mine charging and swapping station are charged; Among them, n is the number of reserve batteries in the mine charging and swapping station.

4. The cost optimization method of a mine charging and swapping station according to claim 3, characterized in that: The partially charged spare batteries in the mine charging and swapping station are charged, and the number of the partially charged spare batteries is min{(α+β-n),α}; Where min{} is the minimum value function.

5. A method for loading cargo, characterized in that: The method comprises the following steps: Get cargo missions; According to the cargo-carrying task, the mine cart is deployed to carry out cargo-carrying; When a cargo task is completed, it is determined whether the current remaining power of the mine car is less than the first threshold of battery charging and replacement: If the current remaining power of the mining car is less than the first battery charging and replacing threshold, the mining car is guided to the mine charging and replacing station for battery charging and replacing, otherwise the cargo carrying task continues until the cargo carrying task is completed; Among them, the battery charging and battery replacement includes battery charging and battery replacement. The battery replacement is to replace the battery with insufficient remaining power in the mining truck with a spare battery. The spare battery is obtained by storing electricity using the cost optimization method of the mine charging and swapping station described in any one of claims 1 to 4.

6. The cargo loading method according to claim 5, characterized in that: The priority of the battery replacement is higher than the priority of the battery charging, and the battery charging is achieved through the charging piles set up in the mine charging and replacement station.

7. A cost optimization device for a mine charging and swapping station, characterized in that: The device comprises: The first acquisition unit is used to acquire the peak, valley and flat time periods of the power grid in the power grid time-of-use electricity price; A determination unit, connected to the first acquisition unit, for determining whether the current actual time falls into a peak power consumption period in the peak, valley and flat time period of the power grid; The second acquisition unit is used to acquire the partially charged spare battery in the mine charging and swapping station; A first power storage unit is connected to the determination unit and the second acquisition unit respectively, and is used to directly store power in the partially charged standby battery in the mine charging and swapping station when the determination unit determines that the current actual time does not fall into the peak power consumption period in the peak, valley and flat time period of the power grid; A second power storage unit is connected to the determination unit and the second acquisition unit respectively, and is used to store or not store power for the partially charged standby battery in the mine charging and swapping station according to the relationship between the number of partially charged standby batteries and the number of low-power mining cards in the mine charging and swapping station when the determination unit determines that the current actual time falls into the peak power consumption period in the peak, valley and flat time period of the power grid; The low-battery mining card is a mining card whose remaining battery power is lower than the second threshold value for battery charging and replacement.

8. The cost optimization device for a mine charging and swapping station according to claim 7, characterized in that: The second acquiring unit includes: A comparison module is used to compare the power of the reserve battery in the mine charging and swapping station with the full power of the battery to obtain a comparison result; The screening module is connected to the comparison module and is used to screen out the spare batteries with less than full power according to the comparison results, that is, to obtain the partially charged spare batteries in the mine charging and swapping station.

9. The cost optimization device for a mine charging and swapping station according to claim 7 or 8, characterized in that: The second power storage unit includes: An acquisition module is used to obtain the number α of uncharged standby batteries in the mine charging and swapping station; and to obtain the remaining power of all current mining cards; A calculation module, connected to the acquisition module, for calculating the number β of low-power mining cards below the second battery charging and replacement threshold according to the remaining power of the mining cards; A determination module, connected to the calculation module, for determining whether it is necessary to store or not store power for the partially charged reserve batteries in the mine charging and swapping station according to the number α of the partially charged reserve batteries available in the mine charging and swapping station and the number β of the low-power mining cards; a processing module connected to the determination module, and configured to not store electricity in the partially charged standby battery when the determination module determines that β is less than or equal to the number of available partially charged standby batteries, that is, β≤n-α; and to store electricity in the partially charged standby battery in the charging and swapping station when the determination module determines that β is greater than the number of available partially charged standby batteries, that is, β>n-α; Among them, n is the number of reserve batteries in the mine charging and swapping station.

10. An intelligent cloud control center, characterized in that: The intelligent cloud control center includes: at least one processor; and a memory communicatively coupled to the at least one processor; wherein The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the cost optimization method of the mine charging and swapping station described in any one of claims 1-4, or execute the cargo loading method described in any one of claims 5 to 6.

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