Distributed power supply method based on multi-component connection

Abstract

The invention provides a distributed power supply method based on multi-component connection, which relates to the technical field of power supply technology, and comprises the following steps: constructing a distributed power supply network according to power utilization component distribution and power supply requirements of a mobile combined device, the distributed power supply network comprising a plurality of independent power supply units, each independent power supply unit correspondingly supplies power to at least one electric component; detachable electric connection among the plurality of independent power supply units and detachable electric connection between the independent power supply units and the power utilization assembly are realized by adopting welding-free connecting joints; the plurality of independent power supply units are synchronously charged or independently charged through the centralized charging interface; according to the invention, the distributed power supply network is constructed, the plurality of independent power supply units are distributed at different positions of the mobile combined device, and each independent power supply unit only supplies power to nearby power utilization components, so that the power supply distance of a single power supply loop is greatly shortened, and the problem of traditional far-end voltage drop is effectively solved.

Description

Technical Field

[0001] This invention relates to the field of power supply technology, and in particular to a distributed power supply method based on multi-component connection. Background Technology

[0002] In mobile modular installations, especially those on water, such as bamboo raft landscape installations and floating platform systems, low-voltage power supply is typically required for multiple electrical components, including decorative lights, LEDs, and small drive devices. Common low-voltage supply ranges are 12V-48V to ensure safety and accommodate the rated voltage requirements of these small components. Existing technologies for power supply to such mobile modular installations mainly fall into two categories: centralized single-power supply, where a single high-power module powers all components, with the module connected to each component via wires; and distributed independent power supply, where each component is equipped with its own small power supply, which powers its corresponding component.

[0003] However, the above power supply methods have the following drawbacks: For centralized single-power supply, when the mobile combined device is large in size and the power components are distributed widely, the power supply distance is long, and the resistance of the wires will cause a significant voltage drop in the remote power components, resulting in insufficient power supply and unstable operation of the remote power components, such as the brightness decay of the light-emitting elements and the stagnation of the driving equipment. Moreover, once the single power supply fails, the power supply of the entire device will be interrupted, resulting in low reliability. For distributed independent power supply, the power supply of each power component needs to be charged or replaced separately, resulting in low maintenance efficiency and the inability to achieve centralized management. At the same time, when the device needs to adjust the number or position of power components according to usage requirements, the distributed power supply connection method needs to be re-welded or rewired, resulting in poor disassembly and assembly flexibility and difficulty in adapting to the dynamic adjustment requirements of mobile combined devices. Therefore, this invention proposes a distributed power supply method based on multi-component connection to solve the problems existing in the prior art. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes a distributed power supply method based on multi-component connections. This method constructs a distributed power supply network, distributing multiple independent power supply units at different locations of the mobile combined device. Each independent power supply unit supplies power only to nearby electrical components, significantly shortening the power supply distance of a single power supply circuit. Combined with voltage drop calculations, it ensures that the voltage drop is within the allowable range, effectively solving the problem of long-distance voltage drop caused by long distances in traditional centralized single-power supply.

[0005] To achieve the objectives of this invention, the invention is implemented through the following technical solution: a distributed power supply method based on multi-component connection, applied to mobile combined devices requiring low-voltage power supply, comprising the following steps:

[0006] S1: Based on the distribution of electrical components and power supply requirements of the mobile combined device, a distributed power supply network is constructed. The distributed power supply network includes multiple independent power supply units, and each independent power supply unit supplies power to at least one electrical component.

[0007] S2: The use of solderless connectors enables detachable electrical connections between multiple independent power supply units, as well as detachable electrical connections between independent power supply units and electrical components;

[0008] S3: Multiple independent power supply units can be charged synchronously or independently through a centralized charging interface to meet the continuous power supply needs of mobile combined devices.

[0009] Further improvements include: the low-voltage power supply voltage is 12V-48V, the mobile combination device is a water-based mobile combination device, and the power components include at least one of a lantern, a light-emitting element, and a driving element.

[0010] A further improvement is that the water-based mobile assembly is a bamboo raft assembly, which is composed of multiple bamboo raft units that can be detachably connected. Each bamboo raft unit is equipped with at least one independent power supply unit and at least one set of electrical components.

[0011] A further improvement is that, in S1, the independent power supply unit includes a battery pack, a voltage stabilization module, and an overload protection module. The voltage stabilization module is used to stabilize the output voltage of the battery pack to the rated operating voltage of the electrical component.

[0012] A further improvement is that S1 includes calculating the voltage drop between the independent power supply unit and the applied electrical components, ensuring that the voltage drop is less than a preset voltage drop threshold. The formula for calculating the voltage drop is:

[0013]

[0014] in:

[0015] The voltage drop is measured in volts (V).

[0016] The loop current for supplying power to the application electrical components from an independent power supply unit, measured in amperes (A).

[0017] Resistance per unit length of the connecting wire between the independent power supply unit and the electrical components, expressed in Ω / m;

[0018] The length of the connecting wire between the independent power supply unit and the electrical components, in meters (m).

[0019] A further improvement lies in: the number of independent power supply units in S1. Determined by the following formula:

[0020]

[0021] in:

[0022] The number of independent power supply units, taken as a positive integer;

[0023] It is a rounding function;

[0024] The total rated power of all electrical components in the mobile modular unit, expressed in watts (W).

[0025] Rated output power of a single independent power supply unit, in watts (W).

[0026] This is a redundancy factor, with a value ranging from 0.6 to 0.9, used to reserve power supply margin to meet the peak power demand of electrical components.

[0027] A further improvement is that, in S2, the weld-free connection connector is an aviation connector, which includes a male and a female connector, respectively located at the ends of adjacent independent power supply units and at the connection points between the independent power supply units and the electrical components.

[0028] A further improvement lies in: the charging time of the independent power supply unit in S3. Calculated using the following formula:

[0029] in:

[0030] Charging time, in hours (h).

[0031] The rated capacity of the battery pack in the independent power supply unit is expressed in Ah.

[0032] The single-channel charging current provided to the centralized charging interface, in amperes (A).

[0033] The value for charging efficiency ranges from 0.75 to 0.95, and is determined by the characteristics of the charging equipment and the battery pack.

[0034] A further improvement is that S3 also includes: during operation, real-time monitoring of the remaining power and output voltage of each independent power supply unit, and issuing a warning signal when the remaining power of any independent power supply unit is lower than a preset power threshold or the output voltage deviates from the rated voltage range.

[0035] Further improvements include the following steps: transmitting the monitoring data of the independent power supply unit to the control terminal via a wireless communication module, with the control terminal used to display the monitoring data and receive early warning signals.

[0036] The beneficial effects of this invention are as follows:

[0037] 1. This invention constructs a distributed power supply network, distributing multiple independent power supply units at different locations of the mobile combined device. Each independent power supply unit only supplies power to nearby electrical components, significantly shortening the power supply distance of a single power supply circuit. Combined with voltage drop calculation, it ensures that the voltage drop is within the allowable range, effectively solving the problem of long-distance voltage drop caused by traditional centralized single power supply. Multiple independent power supply units work independently, and the failure of a single power supply unit only affects the electrical components it supplies, without causing a power outage of the entire device, significantly improving power supply reliability.

[0038] 2. This invention uses a weld-free connector to achieve detachable connection between the independent power supply unit and the power-consuming components, and the independent power supply unit. The components can be disassembled or assembled without complicated welding operations. Moreover, the number of independent power supply units is accurately determined according to the total power of the power-consuming components, so that the mobile combination device can flexibly adjust the composition of the power supply system according to actual usage needs, adapt to the power supply needs in different scenarios, and solve the problems of inconvenient disassembly and assembly and poor adaptability of traditional distributed power supply.

[0039] 3. This invention enables synchronous or independent charging of all independent power supply units through a centralized charging interface, eliminating the need for separate power supply processing for each electrical component and significantly improving charging efficiency. Combined with real-time monitoring, the operating status of each power supply unit can be monitored in a timely manner, facilitating rapid location of faulty units and reducing maintenance time and costs. Compared with the decentralized management mode of traditional distributed power supply, the centralized management feature of this invention significantly reduces the management difficulty and maintenance cost of the power supply system for mobile combined devices. Attached Figure Description

[0040] Fig. 1 This is a flowchart of the method of the present invention;

[0041] Fig. 2 This is a schematic diagram of the aviation connector connection of the present invention;

[0042] Fig. 3 This is a simplified flowchart of the method of the present invention. Detailed Implementation

[0043] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments. These embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0044] Example 1

[0045] according to Figs. 1-3 As shown, this embodiment proposes a distributed power supply method based on multi-component connection, applied to a mobile combined device requiring low-voltage power supply. The low-voltage power supply voltage is 12V-48V. The mobile combined device is a water-based mobile combined device. The power-consuming components include at least one of a decorative lamp, a light-emitting element, and a driving element. The water-based mobile combined device is a bamboo raft assembly, which is composed of multiple detachably connected bamboo raft units. Each bamboo raft unit is equipped with at least one independent power supply unit and at least one set of the power-consuming components. The method includes the following steps:

[0046] S1: Based on the distribution of electrical components and power supply requirements of the mobile combined device, a distributed power supply network is constructed. The distributed power supply network includes multiple independent power supply units, each of which supplies power to at least one electrical component. Each independent power supply unit includes a battery pack, a voltage stabilization module, and an overload protection module. The voltage stabilization module is used to stabilize the output voltage of the battery pack to the rated operating voltage of the electrical component.

[0047] Calculate the voltage drop between the independent power supply unit and the applied electrical components, ensuring that the voltage drop is less than a preset voltage drop threshold. The formula for calculating the voltage drop is:

[0048]

[0049] in:

[0050] The voltage drop is measured in volts (V).

[0051] The loop current for supplying power to the application electrical components from an independent power supply unit, measured in amperes (A).

[0052] Resistance per unit length of the connecting wire between the independent power supply unit and the electrical components, expressed in Ω / m;

[0053] The length of the connecting wire between the independent power supply unit and the electrical components, in meters (m).

[0054] The number of independent power supply units Determined by the following formula:

[0055]

[0056] in:

[0057] The number of independent power supply units, taken as a positive integer;

[0058] It is a rounding function;

[0059] The total rated power of all electrical components in the mobile modular unit, expressed in watts (W).

[0060] Rated output power of a single independent power supply unit, in watts (W).

[0061] This is a redundancy factor, with a value ranging from 0.6 to 0.9, used to reserve power supply margin to meet the peak power demand of electrical components.

[0062] Understandably, by calculating the distance of the power supply circuit and in conjunction with voltage drop, voltage loss can be precisely controlled, ensuring the consistency of brightness for the lanterns and other light-emitting elements on the bamboo raft assembly, and enhancing the nighttime "dragon" shape display effect. The voltage stabilization module and overload protection module of the independent power supply unit work together to prevent damage to electrical components from battery voltage fluctuations and to quickly cut off the circuit in the event of a short circuit, reducing electrical safety hazards of the water-based equipment. By precisely configuring the number of independent power supply units through a quantity calculation formula, resource waste caused by excessive power redundancy or component shutdown caused by insufficient power can be avoided.

[0063] S2: A weld-free connector is used to achieve a detachable electrical connection between multiple independent power supply units, as well as a detachable electrical connection between an independent power supply unit and an electrical component; the weld-free connector is an aviation connector, which includes a male and a female connector, respectively located at the ends of adjacent independent power supply units and at the connection point between the independent power supply unit and the electrical component.

[0064] Understandably, the weld-free aviation connectors allow for assembly and disassembly without the need for specialized welding tools, significantly reducing the difficulty of adding or removing bamboo raft units and replacing electrical components. For example, during festivals, when additional bamboo raft units are needed to extend the "dragon's" length, a single person can complete the power connection within 10 minutes, improving the efficiency of device adjustments. The aviation connectors possess excellent waterproof sealing properties, adapting to the humid environment of the bamboo raft assembly and preventing rainwater or river water from seeping into the connectors and causing short circuits. Furthermore, the connectors have a plug-and-play lifespan of thousands of cycles, eliminating the need for frequent replacements over long-term use and reducing subsequent maintenance costs.

[0065] S3: Simultaneous or independent charging of multiple independent power supply units via a centralized charging interface to meet the continuous power supply needs of the mobile modular device. Charging time for independent power supply units. Calculated using the following formula:

[0066]

[0067] in:

[0068] Charging time, in hours (h).

[0069] The rated capacity of the battery pack in the independent power supply unit is expressed in Ah.

[0070] The single-channel charging current provided to the centralized charging interface, in amperes (A).

[0071] The value for charging efficiency ranges from 0.75 to 0.95, and is determined by the characteristics of the charging equipment and the battery pack.

[0072] Specifically, the centralized charging interface supports simultaneous charging of multiple units, eliminating the need to disassemble and transport each battery pack individually for charging. For example, seven independent power supply units can be charged simultaneously through the same interface, saving more than 60% of charging preparation time compared to decentralized charging, ensuring that the bamboo raft assembly can be put into use on time every day. The charging time calculation formula can accurately estimate the full charge time based on the battery capacity and charging current, making it easier for staff to plan charging cycles and avoid equipment shutdown due to insufficient charging or damage to the battery due to overcharging.

[0073] During operation, the remaining power and output voltage of each independent power supply unit are monitored in real time. An early warning signal is issued when the remaining power of any independent power supply unit falls below a preset threshold or its output voltage deviates from the rated voltage range. The monitoring data from each independent power supply unit is transmitted to the control terminal via a wireless communication module. The control terminal displays the monitoring data and receives the early warning signals. This real-time monitoring and early warning function can detect abnormal power supply units in advance, allowing staff to locate faults without inspecting each raft unit individually. For example, after receiving an early warning, the shore-based control terminal can directly go to the corresponding raft unit to replace the backup power supply unit, shortening troubleshooting time. The wireless communication module eliminates the limitations of wiring on the water, allowing monitoring data to be transmitted to the shore-based control terminal in real time. Management personnel can monitor the overall power supply status without boarding the raft, making it particularly suitable for remote operation and maintenance of large raft assemblies, improving management convenience and safety.

[0074] Example 2

[0075] according to Figs. 1-3As shown, this embodiment proposes a distributed power supply method based on multi-component connection, applied to a bamboo raft dragon device. The bamboo raft dragon device is a mobile waterborne combination device composed of 10 detachably connected bamboo raft units. Each bamboo raft unit is equipped with a lantern (5 lanterns / unit, rated power 5W / lantern), an outer LED light tube (20 meters / unit, rated power 1W / meter), and a small drive motor (1 motor / unit, rated power 10W / lantern). It requires a 24V low-voltage power supply, and the power supply distance is required to be no more than 5 meters / power supply circuit, and the voltage drop is required to be no more than 1V.

[0076] Step S1: Calculate the total power of electrical components The power consumption of each bamboo raft unit is 5×5+20×1+10=25+20+10=55W. The total power consumption of 10 bamboo raft units is... =10×55=550W; Select the rated output power of a single independent power supply unit. =100W, redundancy factor =0.8 (set according to the peak power requirements of the LED and the drive motor), calculate the number of independent power supply units using the formula:

[0077]

[0078] That is, seven independent power supply units are set up, six of which supply power to the electrical components of one or two bamboo raft units, and one independent power supply unit serves as a backup, further improving reliability.

[0079] Step S2: The independent power supply unit is connected to the electrical components using 2.5mm² copper core wire. The resistance per unit length of the wire is R = 0.007Ω / m (the resistance value of a 2.5mm² copper core wire at room temperature). The maximum current of a single power supply circuit is... Maximum power supply distance =5m, calculate the supply voltage drop using the formula. =4.17×0.007×5≈0.146V, which is less than the preset voltage drop threshold of 1V, meeting the power supply stability requirements; 24V solderless aviation connectors are used to connect the independent power supply units and the electrical components. The male end of the aviation connector is fixed to the output end of the independent power supply unit, and the female end is fixed to the power input end of the electrical component and the input end of the adjacent independent power supply unit. Connection or disassembly can be completed by plugging and unplugging, which shortens the disassembly and assembly time by more than 90% compared with the traditional soldering method.

[0080] Step S3: Each independent power supply unit is equipped with a 12V / 100Ah battery pack (2 cells in series to form 24V). The centralized charging interface is located at the end of the bamboo raft dragon device, using a 24V / 20A smart charger with a single-channel charging current. =5A (To avoid damaging the battery with excessive charging current, split charging is used, with each circuit corresponding to 1-2 independent power supply units), charging efficiency =0.9 (typical efficiency of a smart charger), the charging time of a single independent power supply unit is calculated using the formula. =100Ah / (5A×0.9)≈22.2h. In actual charging, the seven independent power supply units can be charged simultaneously through the centralized charging interface. The total charging time is the same as that of a single charging, eliminating the need for multiple charging sessions and greatly improving charging efficiency.

[0081] Step S4: Each independent power supply unit is equipped with a voltage sensor and a remaining power detection module. The output voltage and remaining power data are transmitted to the shore control terminal via a ZigBee wireless communication module. When the remaining power is lower than 20% (preset power threshold) or the output voltage is lower than 22V (the allowable deviation range of the rated voltage of 24V), the control terminal issues an audible and visual warning signal to remind maintenance personnel to charge or repair in time, so as to ensure the stable "dragon" shape lighting effect and power supply of the bamboo raft dragon device during nighttime operation.

[0082] Example 3

[0083] according to Figs. 1-3 As shown, this embodiment proposes a distributed power supply method based on multi-component connection, applied to a floating platform system for water features. The floating platform system consists of 8 floating platform units, each equipped with an LED light strip (10 meters / unit, rated power 0.5W / meter), a small fountain water pump (1 unit / unit, rated power 20W / unit), and ambient lights (2 units / unit, rated power 3W / unit). It requires 12V low-voltage power supply. The number of floating platform units can be flexibly increased or decreased according to landscape requirements (e.g., increased to 12 units on holidays and reduced to 5 units on weekdays).

[0084] Step S1: Calculate under different scenarios When there are 5 floating platform units on a normal day, the power of a single floating platform unit is... =10×0.5+20+2×3=5+20+6=31W, =5×31=155W; During holidays, with 12 floating platform units... =12×31=372W; Choose =50W independent power supply unit, =0.7 (The peak power of the fountain pump is 1.4 times the rated power, so a low redundancy factor is set), calculated using the formula: (Daily) Holidays There are 11 units, and the system can be adapted to holiday scenarios by adding 6 independent power supply units without redesigning the power supply system.

[0085] Step S2: Use 1.5mm² copper core wire (R=0.012Ω / m) for a single power supply circuit. =50W / 12V≈4.17A, maximum power supply distance =3m, calculated using the formula described in claim 5. =4.17×0.012×3≈0.150V, which is less than the preset voltage drop threshold of 0.5V; the power components of the independent power supply unit and the floating platform unit are connected by waterproof and solderless aviation connectors. When the number of floating platform units is adjusted, the independent power supply unit can be added or removed simply by plugging and unplugging the aviation connectors. The disassembly and assembly process does not require tools and can be operated by a single person, which is suitable for the dynamic adjustment needs of the floating platform system.

[0086] Step S3: The independent power supply unit uses a 12V / 80Ah battery pack. The centralized charging interface is located on the management platform of the floating platform system, using a 12V / 30A charger. A single-channel Icharger = 6A, η = 0.92, calculated using the formula. =80Ah / (6A×0.92)≈14.5h. During centralized charging, it can charge 11 independent power supply units simultaneously, meeting the rapid power replenishment needs during holidays; on weekdays, it only needs to charge 5 independent power supply units, and some charging circuits can be shut down to reduce energy consumption.

[0087] Step S4: The monitoring data of each independent power supply unit is transmitted to the management terminal through the LoRa wireless communication module to realize remote monitoring. When the connection of the floating platform unit becomes loose due to water flow deviation, the voltage sensor detects the abnormal output voltage and immediately issues an early warning to prevent the LED light strip and water pump from being affected by power outages, thus improving the system's operation and maintenance convenience.

[0088] This distributed power supply method based on multi-component connections constructs a distributed power supply network, distributing multiple independent power supply units at different locations within the mobile modular device. Each independent power supply unit supplies power only to nearby electrical components, significantly shortening the power supply distance of a single power supply circuit. Combined with voltage drop calculations, it ensures that the voltage drop is within the allowable range, effectively solving the problem of long-distance voltage drop caused by traditional centralized single-power supply. Multiple independent power supply units operate independently; a failure in a single power supply unit only affects the corresponding electrical component it supplies, preventing power outages for the entire device and significantly improving power supply reliability. Furthermore, this invention uses weld-free connectors to achieve detachable connections between independent power supply units and electrical components, eliminating the need for complex welding operations for component disassembly or assembly. The number of independent power supply units is precisely determined based on the total power of the electrical components, allowing the mobile modular device to flexibly adjust the power supply system composition according to actual usage needs, adapting to power requirements in different scenarios and solving the problems of inconvenient disassembly and assembly and poor adaptability in traditional distributed power supply systems. In addition, this invention enables synchronous or independent charging of all independent power supply units through a centralized charging interface, eliminating the need for separate power supply processing for each electrical component and significantly improving charging efficiency. Combined with real-time monitoring, the operating status of each power supply unit can be grasped in a timely manner, facilitating rapid location of faulty units and reducing maintenance time and costs. Compared with the decentralized management mode of traditional distributed power supply, the centralized management feature of this invention significantly reduces the management difficulty and maintenance cost of the power supply system for mobile combined devices.

[0089] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A distributed power supply method based on multi-component connection, applied to mobile combined devices requiring low-voltage power supply, characterized in that: The method comprises the following steps: S1: According to the distribution of the power-consuming components of the mobile combination device and the power supply demand, a distributed power supply network is constructed, which comprises a plurality of independent power supply units, each of which supplies power to at least one power-consuming component; S2: The detachable electrical connection between the plurality of independent power supply units and the detachable electrical connection between the independent power supply units and the power-consuming components are realized by using the welding-free connecting joints; S3: The plurality of independent power supply units are synchronously charged or independently charged through the centralized charging interface to meet the continuous power supply demand of the mobile combination device.

2. The method of claim 1, wherein the method is based on a multi-component connection. The voltage of the low-voltage power supply is 12V-48V, the mobile combination device is a water mobile combination device, and the power-consuming components include at least one of the lantern, the light-emitting element, and the driving element.

3. A method of distributed power supply based on multi-component connection according to claim 2, characterized in that: The water mobile combination device is a bamboo raft combination body composed of a plurality of detachably connected bamboo raft units, each of which is provided with at least one independent power supply unit and at least one group of power-consuming components.

4. The method of claim 1, wherein the method is based on a multi-component connection. In S1, the independent power supply unit comprises a battery pack, a voltage stabilizing module, and an overload protection module, and the voltage stabilizing module is used to stabilize the output voltage of the battery pack to the rated working voltage of the power-consuming components.

5. A method of distributed power supply based on multi-component connection according to claim 4, characterized in that: In S1, the power supply voltage drop between the independent power supply unit and the power-consuming component is also calculated to ensure that the power supply voltage drop is less than the preset voltage drop threshold, and the calculation formula of the power supply voltage drop is: ； wherein, Vddis the supply voltage drop, in V; Ic is the loop current supplied by the independent power supply unit to the powered electrical assembly, in A; R is the resistance per unit length of the connecting wire between the independent power supply unit and the powered electrical assembly, in Ω / m; L is the length of the connecting wire between the independent power supply unit and the powered electrical assembly, in m.

6. A method of distributed power supply based on multi-component connection according to claim 5, characterized in that: In the S1, the number of independent power supply units is determined by the following equation: ； wherein, N is the number of independent power supply units, taking positive integer; is a ceiling function; Ptotal is the total rated power of all electrical components of the mobile combination device, in W; Psingle is the rated output power of a single independent power supply unit, in W; is a redundancy coefficient, taking a value in the range of 0.6-0.9, used to reserve a power supply margin to cope with the peak power demand of the electrical components.

7. The method of claim 1, wherein the method is based on a multi-component connection. In S2, the welding-free connecting joint is an aviation joint, which comprises a male head and a female head arranged at the end of adjacent independent power supply units and the connection end position of the independent power supply unit and the power-consuming component.

8. The method of claim 1, wherein the method is based on a multi-component connection. In the S3, the charging time of the independent power supply unit This is calculated by the following equation: ； wherein, is the charging time, in h; is the rated capacity of the battery pack in the independent power supply unit, in Ah; is the single charging current provided by the centralized charging interface, in A; is the charging efficiency, with a value range of 0.75-0.95, determined by the characteristics of the charging device and the battery pack.

9. A method for distributed power supply based on multi-component connection according to any of claims 1-8, characterized in that: In S3, the remaining capacity and output voltage of each independent power supply unit are monitored in real time during operation, and a warning signal is sent when the remaining capacity of any independent power supply unit is lower than the preset capacity threshold or the output voltage deviates from the rated voltage range.

10. A method of distributed power supply based on multi-component connection according to claim 9, characterized in that: The method further comprises the following steps: The monitoring data of the independent power supply unit are transmitted to the control terminal through the wireless communication module, and the control terminal is used to display the monitoring data and receive the warning signal.

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