A battery replacement method and battery replacement system for an electric van traveling at high speed

Abstract

The present invention discloses a battery replacement method and battery replacement system for electric vans traveling at high speed, including the following steps: the background data processing center obtains battery replacement demand signals sent by several electric vans traveling on the highway; the background data processing center automatically matches several qualified mother nest base stations according to the several battery replacement demand signals; the battery replacement scheme is automatically planned between several qualified mother nest base stations; the drones in the qualified mother nest base stations perform the battery removal operation; the drones in the qualified mother nest base stations perform the battery placement operation; the background data processing center and the qualified mother nest base stations obtain the battery replacement completion signal sent by the electric van. The present invention can not only solve the problem of power consumption for the existing charging and replacement infrastructure, but also solve the range anxiety problem of new energy electric vehicles, especially electric vans, by replacing the batteries of electric vans traveling on the highway.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy electric vehicles, and in particular to a battery replacement method and a battery replacement system for an electric van traveling at high speed. Background Art

[0002] In recent years, with the massive entry of new energy electric vehicles into the market, a large number of charging and swapping infrastructures have been built. By the end of 2023, the number of new energy vehicles in the Chinese market will reach 20.41 million, accounting for 6.07% of the total number of vehicles, of which 15.52 million are pure electric vehicles, accounting for 76.04% of the new energy vehicle ownership. At the same time, the cumulative number of charging and swapping infrastructure nationwide is 8.596 million, of which 2.726 million are public charging piles, accounting for 31.7% of the charging and swapping infrastructure. It can be seen from this that the number of charging and swapping infrastructures is far less than the number of new energy electric vehicles, that is, the number of existing charging and swapping infrastructures cannot well meet the power supply problems of existing new energy electric vehicles.

[0003] In addition, in complex and diverse terrain environments, the charging and swapping infrastructure has limited spatial layout, high density, and complex operations, which cannot meet the endurance requirements of a large number of new energy electric vehicles; when time is tight, the charging and swapping infrastructure is difficult to meet multiple concurrent operations; in bad weather and holidays, new energy electric vehicles stuck on highways cannot be charged and swapped when they run out of power. It can be seen that the existing charging and swapping infrastructure still has problems such as insufficient construction, unreasonable layout, oil vehicles and fully charged vehicles occupying space, and inadequate maintenance. At the same time, there are problems such as slow charging, low efficiency, and long time consumption, which make it difficult to charge and swap new energy electric vehicles, resulting in endurance anxiety. Summary of the invention

[0004] To this end, the purpose of the present invention is to provide a battery replacement method and a battery replacement system for an electric van traveling at high speed, so as to solve the range anxiety problem of new energy electric vehicles.

[0005] The present invention achieves the above-mentioned object through the following technical solutions.

[0006] In a first aspect, the present invention provides a method for replacing a battery of an electric van during high-speed driving, comprising:

[0007] The backend data processing center obtains battery replacement demand signals from several electric vans traveling on the highway;

[0008] The backend data processing center automatically matches several mother nest base stations that meet the conditions according to several battery replacement demand signals;

[0009] Automatically plan the power replacement plan between several mother nest base stations that meet the conditions;

[0010] The drones in the eligible mother nest base station perform the battery removal operation;

[0011] The drones in the eligible mother nest base station perform the battery placement operation;

[0012] The background data processing center and the qualified mother base station obtain the battery replacement completion signal sent by the electric van.

[0013] In some implementations, the method for automatically planning a power replacement solution among several mother nest base stations that meet the conditions is specifically as follows:

[0014] The optimal number of eligible mother nest base stations is determined by comprehensively considering the three factors of time, cost and safety among the eligible mother nest base stations, and the safe driving speed range of each electric van is determined according to the several battery replacement demand signals;

[0015] The optimal multiple mother nest base stations that meet the conditions are respectively determined to perform the battery removal operation and the battery placement operation according to the safe driving speed range of each electric van.

[0016] In some embodiments, the method for determining the mother nest base station that performs the battery removal operation and the battery placement operation is specifically: among the best qualified mother nest base stations, according to the safe driving speed range of the electric van, it is determined that one mother nest base station performs the battery removal operation and the battery placement operation for one electric van.

[0017] In some implementations, the method for determining the mother nest base station for performing the battery removal operation and the battery placement operation is specifically:

[0018] The optimal number of mother nest base stations that meet the conditions are determined according to the safe driving speed range of each electric van, and one mother nest base station performs battery removal and battery placement operations for at least two electric vans;

[0019] The qualified mother nest base station synchronously sends a safe driving speed control interval instruction to at least two electric vans to keep a certain distance between the at least two electric vans.

[0020] In some embodiments, the method for determining the mother nest base station for performing the battery removal operation and the battery placement operation is specifically: the best qualified mother nest base stations are determined according to the safe driving speed range of the electric van to have two mother nest base stations perform the battery removal operation and the battery placement operation for one electric van.

[0021] In some embodiments, the method for determining the mother nest base station for performing the battery removal operation and the battery placement operation is specifically: among the best qualified mother nest base stations, at least two mother nest base stations are determined to perform the battery removal operation and the battery placement operation for at least two electric vans according to the safe driving speed range of each electric van.

[0022] In some embodiments, the method for the drone in the qualified mother nest base station to perform the battery removal operation is specifically:

[0023] The drone in the eligible mother nest base station obtains the battery replacement demand signal;

[0024] The drone heads to the electric van based on the battery replacement demand signal;

[0025] After the drone arrives at the first set area of ​​the electric van, it maintains the same driving speed as the electric van according to the battery replacement demand signal;

[0026] After the electric van receives the drone’s arrival signal, it determines whether the drone is in a condition to remove the battery;

[0027] When conditions permit, after the drone is guided into the second set area directly above the battery removal area of ​​the electric van according to the battery replacement demand signal, the drone removes the exhausted battery from the electric van and automatically returns to the nearest mother nest base station with the battery;

[0028] When the conditions are not met, the drone automatically returns to the nearest mother base station.

[0029] In some embodiments, the method for the drone in the qualified mother nest base station to perform the battery placement operation is specifically:

[0030] The drone in the eligible mother nest base station obtains the battery replacement demand signal;

[0031] The drone selects a suitable battery with sufficient power from the mother base station;

[0032] The drone carries the battery to the electric van based on the battery replacement demand signal;

[0033] After the drone arrives at the first set area of ​​the electric van, it maintains the same driving speed as the electric van according to the battery replacement demand signal;

[0034] After the electric van receives the drone’s arrival signal, it determines whether the drone has the conditions to place the battery;

[0035] When conditions permit, after the drone is guided into the second set area directly above the battery placement area of ​​the electric van according to the battery replacement demand signal, the drone will place the battery with sufficient power on the electric van and automatically return to the nearest mother nest base station;

[0036] When the conditions are not met, the drone will automatically return to the nearest mother base station carrying the battery.

[0037] In some embodiments, before the background data processing center obtains the battery replacement demand signals sent by several electric vans traveling on the highway, the process further includes:

[0038] When the main battery of an electric van running on a highway runs out of power, the electric van automatically switches to the auxiliary battery for power supply;

[0039] The sensing unit on the electric van senses the auxiliary battery power supply signal and transmits the signal to the signal transmitting unit on the electric van;

[0040] The signal transmitting unit sends the battery replacement demand signal of the electric van to the background data processing center;

[0041] After the drone in the qualified mother nest base station performs the battery placement operation, the electric van also includes: automatically switching back to power supply by the main battery.

[0042] In some embodiments, the battery replacement demand signal includes location information, driving speed information, battery power information, battery positive and negative pole information, and road traffic information of the electric van.

[0043] In a second aspect, the present invention provides a battery replacement system for an electric van traveling at high speed, comprising: an electric van; a background data processing center, used to obtain a battery replacement demand signal emitted by the electric van and automatically match a qualified mother base station according to the battery replacement demand signal, and to obtain a battery replacement completion signal emitted by the electric van; a mother base station, used to receive the battery replacement demand signal sent by the background data processing center and automatically plan a battery replacement plan according to the battery replacement demand signal, and used to provide a drone for performing battery removal operations and battery placement operations.

[0044] In some embodiments, the electric van includes a battery pack, a control group and a monitoring group, the battery pack includes a main battery and a sub-battery that are electrically connected, the control group includes a first suction cup disposed under the main battery and a signal transmitting unit and a sensing unit disposed under the sub-battery, the main battery is magnetically connected to the first suction cup, the sub-battery is electrically connected to the sensing unit, and the first suction cup, the signal transmitting unit and the monitoring group are all electrically connected to the sensing unit.

[0045] In some embodiments, the monitoring group includes a return control unit and a progress viewing unit. The return control unit is used to determine whether the drone can perform battery removal operations and battery placement operations. The progress viewing unit is used to view the progress of the drone performing battery removal operations and battery placement operations.

[0046] In some embodiments, the drone includes a second suction cup, a signal receiving unit and a camera located at the bottom of the drone, the signal receiving unit is used to receive the battery replacement demand signal sent by the signal transmitting unit, the second suction cup is used to absorb a depleted battery or a fully charged battery, and the camera is used to obtain the installation area of ​​the main battery.

[0047] In some embodiments, the mother nest base station also includes a control group, which is used to receive the battery replacement demand signal sent by the background data processing center and control the drone to perform battery removal and battery placement operations according to the battery replacement demand signal, and to obtain the battery replacement completion signal sent by the electric van.

[0048] Compared with the prior art, the beneficial effects of the present invention are: by replacing the batteries of electric vans traveling on highways, the present invention can not only solve the problem of power consumption for existing charging and swapping infrastructure, but also solve the range anxiety problem of new energy electric vehicles, especially electric vans. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0050] Figure 1 This is a flow chart of a method for replacing power of an electric van during high-speed driving according to the present invention;

[0051] Figure 2 A flowchart of a method for automatically planning a battery replacement scheme between a plurality of mother nest base stations that meet the conditions in a battery replacement method for an electric van traveling at high speed according to the present invention;

[0052] Figure 3 It is a flow chart of a method for a drone in a mother nest base station that meets the conditions to perform a battery removal operation in a battery replacement method for an electric van traveling at high speed according to the present invention;

[0053] Figure 4 It is a flow chart of a method for a drone in a mother nest base station that meets the conditions to perform a battery placement operation in a battery replacement method for an electric van traveling at high speed according to the present invention;

[0054] Figure 5A flowchart of a method for replacing a battery of an electric van traveling on a highway before a backend data processing center obtains a battery replacement demand signal issued by several electric vans traveling on a highway in a battery replacement method of the present invention;

[0055] Figure 6 This is a flow chart of a method for replacing power of an electric van during high-speed driving according to a first embodiment of the present invention;

[0056] Figure 7 This is a flow chart of a method for replacing power of an electric van during high-speed driving according to a second embodiment of the present invention;

[0057] Figure 8 This is a flow chart of a method for replacing power of an electric van during high-speed driving in the third embodiment of the present invention;

[0058] Fig. 9 This is a flow chart of a method for replacing power of an electric van during high-speed driving in a fourth embodiment of the present invention;

[0059] Fig.10 It is a structural schematic diagram of a power replacement system of an electric van traveling at high speed according to the present invention. DETAILED DESCRIPTION

[0060] In order to better understand the present invention, various aspects of the present invention will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of embodiments of the present invention, and do not limit the scope of the present invention in any way. It should be noted that in this specification, the expressions of first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the feature.

[0061] It should also be understood that the terms “comprises,” “including,” “having,” “includes” and / or “comprising,” when used in this specification, indicate the presence of stated features, elements and / or components, but do not exclude the presence or addition of one or more other features, elements, components and / or combinations thereof.

[0062] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which the present invention belongs. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined in this article.

[0063] The present invention provides a battery replacement method and battery replacement system for an electric van during high-speed driving. The present invention is based on the following mechanisms to ensure the efficiency and safety of battery replacement for an electric van:

[0064] 1. Signal interaction and matching: The electric van sends a signal that requires battery replacement. The backend data processing center and the nearest mother-nest base station can receive and analyze the signal and determine the qualified mother-nest base station to perform the battery replacement operation based on the three factors of time, cost and safety.

[0065] 2. Job dispatch and priority: Qualified mother nest base stations automatically plan battery swapping plans based on battery swapping demand signals, such as the number of mother nest base stations that provide battery swapping operations, the priority and order of battery swapping operations between mother nest base stations, the selection of drones to perform battery removal operations, the selection of drones to perform battery placement operations, the priority and order of drone battery swapping operations, the planning of drone driving routes, the priority and order of battery swapping for electric vans, the selection of drone models, etc. At the same time, qualified mother nest base stations can guide electric vans to maintain a certain range of speeds to ensure that the drones can catch up with the electric vans safely, at high speeds, and in the fastest time.

[0066] 3. Signal matching and operation execution: The drone matches the signal transmitting unit of the target electric van through its own signal receiving unit, so that the drone can perform the battery replacement operation.

[0067] The technical solution of the present invention will be specifically described below.

[0068] See also Figure 1 The present invention provides a method for replacing a battery of an electric van during high-speed driving, and the method specifically comprises the following steps:

[0069] Step S1, the background data processing center 1 obtains the battery replacement demand signals sent by several electric vans 3 traveling on the highway.

[0070] The electric van 3 is an electric van that travels at high speed on a highway. Specifically, the electric van 3 includes a battery group 31 , a control group 32 and a monitoring group 33 . Furthermore, the battery pack 31 includes an electrically connected main battery 312 and a secondary battery 311, the main battery 312 is the main power source of the electric van 3, and the secondary battery 311 temporarily provides power when the main battery 312 is exhausted. At the same time, the main battery 312 can transmit power to the secondary battery 311 to ensure that the secondary battery 311 remains fully charged, and the main battery 312 and the secondary battery 311 are both installed on the top of the box body of the electric van 3 to facilitate daily maintenance and inspection of the main battery 312 and the secondary battery 311, as well as replacement of the main battery 312; the control group 32 includes a first suction cup 323 arranged below the main battery 312 and a signal transmitting unit 321 and a sensing unit 322 arranged below the secondary battery 311, the first suction cup 323 can be magnetically connected to the main battery 312 to firmly adsorb the main battery 312 on the electric van At the top of the box of the truck 3, the sensing unit 322 can be electrically connected to the auxiliary battery 311 to sense whether the auxiliary battery 311 is supplying power to the electric van 3. At the same time, the sensing unit 322 can be electrically connected to the first suction cup 323 to reduce the adsorption force of the first suction cup 323 when the main battery 312 needs to be removed or increase the adsorption force when the main battery 312 needs to be placed. The sensing unit 322 can be electrically connected to the signal transmitting unit 321 to transmit the sensed corresponding signal to the signal transmitting unit 321; the monitoring group 33 includes a return control unit and a progress viewing unit. The return control unit can be electrically connected to the sensing unit 322 to determine whether the drone 21 can perform the battery removal operation and the battery placement operation. The progress viewing unit can be used to view the progress of the drone 21 performing the battery removal operation and the battery placement operation. Furthermore, the electric van 3 is also equipped with a GPS system and an INS system, so that the background data processing center 1 and the mother nest base station 2 and the drone 21 can obtain the location information and driving speed information of the electric van 3.

[0071] In some embodiments, triangular reflective strips are provided at the four corners of the upper surface of the first suction cup 323 so that the camera 212 on the drone can be accurately positioned at the main battery installation area when the drone performs a battery placement operation.

[0072] In some embodiments, the monitoring group 33 is located in the cab and displayed on a display screen, so that the driver can confirm the subsequent unmanned aerial vehicle battery removal and battery placement operations. If it is determined that the unmanned aerial vehicle has the conditions to remove the exhausted main battery or the unmanned aerial vehicle has the conditions to place a fully charged main battery, the driver can click "Confirm" to continue to perform the battery removal operation or the battery placement operation; if it is determined that the unmanned aerial vehicle does not have the conditions to remove the exhausted main battery or the unmanned aerial vehicle does not have the conditions to place a fully charged main battery, the driver can click "Cancel" to interrupt the battery removal operation or the battery placement operation.

[0073] At the same time, the battery replacement demand signal includes the location information of the electric van 3, the driving speed information, the power information of the auxiliary battery 311, the positive and negative pole information of the main battery 312, and the road traffic information.

[0074] Also, see Figure 5 Before the background data processing center 1 obtains the battery replacement demand signals sent by several electric vans 3 traveling on the highway, the following steps are specifically included:

[0075] Step S01: When the main battery 312 of the electric van 3 running on the highway runs out of power, the electric van 3 automatically switches to the auxiliary battery 311 for power supply;

[0076] Step S02, the sensing unit 322 on the electric van 3 senses the power supply signal of the auxiliary battery 311 and transmits the signal to the signal transmitting unit 321 on the electric van 3;

[0077] Step S03 , the signal transmitting unit 321 sends the battery replacement demand signal of the electric van 3 to the background data processing center 1 .

[0078] Step S2, the background data processing center 1 automatically matches several qualified mother base stations 2 according to several battery replacement demand signals.

[0079] Among them, the mother nest base station 2 is set in the service area of ​​the highway, which can be used to receive the battery replacement demand signal sent by the background data processing center 1 and automatically plan the battery replacement plan according to the battery replacement demand signal, and can be used to provide drones 21 for performing battery removal and battery placement operations, and can also be used to charge exhausted batteries, store batteries with sufficient power, charge and store, dispatch and repair drones 21. Specifically, the mother nest base station 2 includes a control group 22 and multiple drones 21. Further, the control group 22 can be used to receive the battery replacement demand signal sent by the background data processing center 1, and automatically plan the most economical and safest battery replacement plan according to the battery replacement demand signal, and can be used to control multiple drones 21 to perform battery removal and battery placement operations, and can also be used to obtain the battery replacement completion signal issued by the signal transmitting unit 321 of the electric van 3; each drone 21 includes a second suction cup 211, a signal receiving unit 213 and a camera 212 arranged at the bottom of the drone 21, and the signal receiving unit 213 can be used to receive the battery replacement demand signal issued by the signal transmitting unit 321 through the control group 22 so as to communicate with the corresponding electric van 3. The signal transmitting unit 321 is paired and works in coordination, the second suction cup 211 can be used to firmly absorb the exhausted battery or the fully charged battery to ensure that the battery will not shake or accidentally fall due to external factors during the process of taking and placing the battery or flying, and the camera 212 can be used to accurately obtain the main battery installation area when the drone 21 hovers in the predetermined area above the electric van 3; at the same time, the priority and order of the operations are set inside the multiple drones 21. This priority and order can be set by the control group 22 according to the power and model of the drone 21, and can also be adjusted according to the urgency of the operation or other factors. Under normal circumstances, the drone in front will work first. Furthermore, the drone 21 is also equipped with a GPS system and an INS system, so that the control group 22 can obtain the location information and driving speed information of the drone 21 in real time and accurately, so as to facilitate the control group 22 to coordinate the operation status of the drone in real time, thereby ensuring the smooth battery replacement of the electric van.

[0080] At the same time, the qualified mother nest base station 2 should be the mother nest base station 2 near the electric van 3 that sends the battery replacement demand signal, and the mother nest base station 2 has a suitable battery with sufficient power and a suitable drone that can perform battery removal operations and / or a drone that performs battery placement operations. Of course, there can be 1-3 qualified mother nest base stations 2 near an electric van 3 that sends a battery replacement demand signal (determined by factors such as the power of the secondary battery, the distance between the mother nest base stations, but not limited to this), and the mother nest base station 2 can be located in front of or behind the direction of travel of the electric van 3 that sends the battery replacement demand signal.

[0081] Step S3: Automatically plan a power replacement plan between two mother base stations that meet the conditions.

[0082] For details, please refer to Figure 2 The method for automatically planning a power replacement scheme between two mother nest base stations that meet the conditions is as follows:

[0083] Step S31, the optimal number of eligible mother nest base stations 2 are determined by comprehensively considering the three factors of time, cost and safety among the eligible mother nest base stations 2, and the safe driving speed range of each electric van 3 is determined according to the several power exchange demand signals. The safe driving speed range is the safe speed range that the mother nest base station 2 can maintain by guiding the electric van 3 through the control group 22 according to the power exchange demand signal;

[0084] Step S32, the optimal multiple mother nest base stations 2 that meet the conditions respectively determine the mother nest base station 2 that performs the battery removal operation and the battery placement operation according to the safe driving speed range of each electric van 3.

[0085] Among them, under the premise of optimizing time, cost and safety, there are four methods for determining the mother nest base station 2 for performing the battery removal operation and the battery placement operation respectively among the optimal several mother nest base stations 2 that meet the conditions in step S32 according to the safe driving speed range of each electric van 3:

[0086] 1) The best qualified mother nest base stations 2 are determined according to the safe driving speed range of the electric van. One mother nest base station 2 performs the battery removal operation and the battery placement operation for one electric van 3, that is, two drones in one mother nest base station 2 cooperate to complete the replacement of the main battery on one electric van 3.

[0087] 2) The best qualified mother nest base stations 2 determine, according to the safe driving speed range of each electric van 3, that one mother nest base station 2 performs battery removal and battery placement operations for at least two electric vans 3; then, the qualified mother nest base station 2 synchronously sends a safe driving speed control range instruction to at least two electric vans 3, so that the at least two electric vans 3 maintain a certain distance, that is, the two drones in one mother nest base station 2 cooperate to complete the replacement of the main batteries on at least two electric vans 3.

[0088] 3) The best number of eligible mother nest base stations 2 are determined according to the safe driving speed range of the electric van 3. Two mother nest base stations 2 respectively perform the battery removal operation and the battery placement operation for one electric van 3, that is, one drone in one mother nest base station 2 is responsible for removing the exhausted main battery on the electric van 3, and one drone in another mother nest base station 2 is responsible for placing a fully charged battery, i.e., a new main battery, on the electric van 3.

[0089] 4) The best qualified number of mother nest base stations 2 are determined according to the safe driving speed range of each electric van 3, and at least two mother nest base stations 2 perform battery removal and battery placement operations for at least two electric vans 3, that is, the drones in at least two mother nest base stations 2 cooperate to remove the exhausted main batteries from at least two electric vans 3, and the drones in at least two mother nest base stations 2 cooperate to place the fully charged batteries, i.e., new main batteries, on at least two electric vans 3, wherein the drone responsible for removing the exhausted main batteries and the drone responsible for placing the new main batteries can come from the same mother nest base station or from different mother nest base stations.

[0090] Step S4: The drone 21 in the mother base station 2 that meets the conditions performs the battery removal operation.

[0091] For details, please refer to Figure 3 The specific method for the drone 21 in the mother nest base station 2 that meets the conditions to perform the battery removal operation is:

[0092] Step S41: The drone 21 in the mother base station 2 that meets the conditions obtains a battery replacement demand signal;

[0093] Step S42, the drone 21 goes to the electric van 3 according to the battery replacement demand signal;

[0094] Step S43: After the drone 21 arrives at the first set area of ​​the electric van 3, it maintains the same driving speed as the electric van 3 according to the battery replacement demand signal;

[0095] Step S44: After the electric van 3 obtains the arrival signal of the drone 21, it determines whether the drone 21 has the conditions to remove the battery; if so, execute steps S451-S453; if not, execute step S46;

[0096] Step S451: When conditions are met, the drone 21 is guided into the second set area directly above the area where the battery is to be removed from the electric van 3 according to the battery replacement demand signal;

[0097] Step S452, the drone 21 takes out the exhausted battery from the electric van 3;

[0098] Step S453, the drone 21 automatically returns to the nearest mother nest base station 2 with the exhausted battery;

[0099] Step S46: When the conditions are not met, the drone 21 automatically returns to the nearest mother base station 2.

[0100] Step S5: The drone 21 in the mother base station 2 that meets the conditions performs the battery placement operation.

[0101] For details, please refer to Figure 4 The specific method for the drone 21 in the mother nest base station 2 that meets the conditions to perform the battery placement operation is:

[0102] Step S51: The drone 21 in the mother base station 2 that meets the conditions obtains a battery replacement demand signal;

[0103] Step S52, the drone 21 selects a suitable battery with sufficient power from the mother base station 2;

[0104] Step S53, the drone 21 carries the battery to the electric van 3 according to the battery replacement demand signal;

[0105] Step S54: After the drone 21 arrives at the first set area of ​​the electric van 3, it maintains the same driving speed as the electric van 3 according to the battery replacement demand signal;

[0106] Step S55: After the electric van 3 obtains the arrival signal of the drone 21, it determines whether the drone 21 has the conditions to place the battery; if so, execute steps S561-S563; if not, execute step S57;

[0107] Step S561: When conditions are met, the drone 21 is guided into the second set area directly above the battery placement area of ​​the electric van 3 according to the battery replacement demand signal;

[0108] Step S562, the drone 21 places a battery with sufficient power on the electric van 3;

[0109] Step S563, the drone 21 automatically returns to the nearest mother base station;

[0110] Step S57: When the conditions are not met, the drone 21 automatically returns to the nearest mother base station 2 with a battery with sufficient power.

[0111] Step S6, the electric van 3 automatically switches back to powering the main battery 312, and at the same time, the background data processing center 1 and the qualified mother base station 2 obtain the power replacement completion signal sent by the electric van 3.

[0112] The present invention is further described below in multiple embodiments. The following embodiments are only preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the following embodiments. Any other changes, substitutions, combinations or simplifications that do not deviate from the innovative features of the present invention should be regarded as equivalent replacement methods and are included in the protection scope of the present invention. Example

[0113] See also Figure 6The first embodiment of the present invention provides a method for replacing a battery in an electric van during high-speed driving. The method specifically includes the following steps:

[0114] Step S1, the backend data processing center 1 obtains a battery replacement demand signal sent by several electric vans 3 traveling on the highway;

[0115] Step S2, the background data processing center 1 automatically matches at least one mother nest base station 2 that meets the conditions for each electric van 3 according to a number of battery replacement demand signals;

[0116] Step S31, the optimal mother nest base station 2 that meets the conditions is determined based on the three factors of time, cost, and safety, and the safe driving speed range of each electric van 3 is determined based on a number of power exchange demand signals;

[0117] Step S321: The best mother nest base station 2 that meets the conditions determines, according to the safe driving speed range of an electric van 3, that a mother nest base station 2 performs a battery removal operation and a battery placement operation for the electric van 3;

[0118] Step S4: The qualified first drone in the mother nest base station 2 that meets the conditions takes out the exhausted main battery 312 on the electric van 3 according to the battery replacement demand signal;

[0119] Step S5: The qualified second drone in the mother nest base station 2 that meets the conditions places a battery with sufficient power, i.e., a new main battery 312, on the electric van 3 according to the battery replacement demand signal;

[0120] Step S6, the electric van 3 automatically switches back to powering the new main battery 312, and at the same time the background data processing center 1 and the qualified mother base station 2 obtain the battery replacement completion signal sent by the electric van 3.

[0121] It should be noted here that the mother base station needs to coordinate the departure and return time of the first drone and the second drone in real time to ensure the continuity, safety and efficiency of the battery removal and battery placement operations. Example

[0122] See also Figure 7 The second embodiment of the present invention provides a method for replacing a battery in an electric van during high-speed driving, and the method specifically includes the following steps:

[0123] Step S1, the backend data processing center 1 obtains a battery replacement demand signal sent by at least two electric vans 3 traveling on the highway;

[0124] Step S2, the background data processing center 1 automatically matches at least one mother nest base station 2 that meets the conditions for each electric van 3 according to at least two battery replacement demand signals;

[0125] Step S31, the optimal mother nest base station 2 that meets the conditions is determined based on the three factors of time, cost, and safety, and the safe driving speed range of each electric van 3 is determined based on at least two power exchange demand signals;

[0126] Step S322: The optimal mother nest base station 2 that meets the conditions determines that one mother nest base station 2 performs battery removal and battery placement operations for at least two electric vans 3 according to the safe driving speed range of each electric van 3;

[0127] Step S33, the qualified mother nest base station 2 synchronously sends a safe driving speed control interval instruction to at least two electric vans 3, so that at least two electric vans 3 travel within a certain safe driving speed control interval and keep a certain distance between at least two electric vans 3, so that the drone that can operate continuously for multiple times in the future can take out the exhausted main battery 312 on each electric van 3 in turn and place the fully charged battery, i.e., the new main battery 312, on each electric van 3 in turn;

[0128] Step S4: The first drone in the mother nest base station 2 that meets the conditions and can operate continuously for multiple times sequentially takes out the exhausted main batteries 312 on each electric van 3 in turn according to the battery replacement demand signal;

[0129] Step S5: The second drone in the mother nest base station 2 that meets the conditions and can operate continuously for multiple times places the battery with sufficient power, that is, the new main battery 312, on each electric van 3 in turn according to the battery replacement demand signal;

[0130] Step S6, the electric van 3 automatically switches back to powering the new main battery 312, and at the same time the background data processing center 1 and the qualified mother base station 2 obtain the battery replacement completion signal sent by the electric van 3.

[0131] It should be noted here that the mother base station needs to coordinate the departure and return times of the first UAV and the second UAV in real time, as well as the priority and order of the electric vans that need to remove or place batteries, to ensure the continuity, safety and efficiency of the battery removal and battery placement operations. Example

[0132] See also Figure 8 The third embodiment of the present invention provides a method for replacing a battery in an electric van during high-speed driving. The method specifically includes the following steps:

[0133] Step S1, the backend data processing center 1 obtains a battery replacement demand signal sent by at least one electric van 3 traveling on a highway;

[0134] Step S2, the background data processing center 1 automatically matches at least two mother nest base stations 2 that meet the conditions for each electric van 3 according to a number of power replacement demand signals;

[0135] Step S31, the qualified mother nest base stations 2 comprehensively consider the three factors of time, cost and safety to determine the optimal number of qualified mother nest base stations 2, and determine the safe driving speed range of each electric van 3 according to the number of power replacement demand signals;

[0136] Step S323: The best qualified mother nest base stations 2 determine, according to the safe driving speed range of an electric van 3, that two mother nest base stations 2 cooperate to perform battery removal and battery placement operations for the electric van 3;

[0137] Step S4: The qualified first drone in the qualified first mother nest base station takes out the exhausted main battery 312 on the electric van 3 according to the battery replacement demand signal;

[0138] Step S5: The qualified second drone in the qualified second mother nest base station places the battery with sufficient power, i.e., the new main battery 312, on the electric van 3 according to the battery replacement demand signal;

[0139] Step S6, the electric van 3 automatically switches back to powering the new main battery 312, and at the same time, the background data processing center 1 and the two qualified mother base stations 2 obtain the battery replacement completion signal sent by the electric van 3.

[0140] It should be noted here that the two mother base stations need to coordinate the departure and return times of their respective drones in real time to ensure the continuity, safety and efficiency of battery removal and battery placement operations. Example

[0141] See also Fig. 9 The fourth embodiment of the present invention provides a method for replacing a battery in an electric van during high-speed driving, and the method specifically includes the following steps:

[0142] Step S1, the backend data processing center 1 obtains a battery replacement demand signal sent by at least two electric vans 3 traveling on the highway;

[0143] Step S2, the background data processing center 1 automatically matches at least two mother nest base stations 2 that meet the conditions according to at least two battery replacement demand signals;

[0144] Step S30: at least two mother base stations 2 that meet the conditions perform battery swap demand scheduling analysis based on the battery swap demand signal and the most economical and safest principle;

[0145] Step S31, the optimal number of mother nest base stations 2 that meet the conditions are determined by comprehensively considering the three factors of time, cost and safety among at least two mother nest base stations 2 that meet the conditions, and the safe driving speed range of each electric van 3 is determined according to the power exchange demand signal;

[0146] Step S324: The optimal mother nest base station 2 that meets the conditions determines that one mother nest base station 2 performs the battery removal operation for one electric van 3 according to the safe driving speed range of each electric van 3, and determines that the same mother nest base station 2 or different mother nest base stations 2 perform the battery placement operation for the electric van 3;

[0147] Step S4: The qualified first drone in the mother nest base station 2 that meets the conditions takes out the exhausted main battery 312 on the corresponding electric van 3 according to the battery replacement demand signal;

[0148] Step S5: The qualified second drone in the qualified mother nest base station 2 places the battery with sufficient power, i.e., the new main battery 312, on the corresponding electric van 3 according to the battery replacement demand signal;

[0149] Step S6, each electric van 3 automatically switches back to powering the new main battery 312, and at the same time, the background data processing center 1 and the qualified mother base station 2 obtain the battery replacement completion signal sent by the electric van 3.

[0150] It should be noted here that each mother base station needs to coordinate the departure and return time of each drone and the driving path of each drone in real time, as well as the priority and order of the electric vans that need to remove or place batteries, to ensure the continuity, safety and efficiency of battery removal and battery placement operations.

[0151] To facilitate understanding of the technical solution of the present invention, the technical content of an embodiment of the present invention is described in detail by taking an example in which a mother nest base station provides battery replacement service for an electric van.

[0152] In one embodiment, the method for replacing power of an electric van during high-speed driving specifically includes the following steps:

[0153] Step S01 , when the main battery 312 of the electric van 3 running at high speed on the highway is exhausted, the power supply control system of the electric van 3 will automatically switch to the auxiliary battery 311 for power supply.

[0154] Step S02 , when the sensing unit 322 on the electric van 3 senses the signal powered by the auxiliary battery 311 , the sensing unit 322 transmits the signal to the signal transmitting unit 321 on the electric van 3 .

[0155] Step S03, the signal transmitting unit 321 will convert the signal that the auxiliary battery 311 is powering, i.e. the main battery 312 is exhausted, as well as the real-time position information, driving speed information, power information of the auxiliary battery 311, positive and negative pole information of the main battery 312 and road traffic information of the electric van 3 into a battery replacement demand signal of the electric van 3 and send it to the background data processing center 1.

[0156] Step S1, the background data processing center 1 obtains the battery replacement demand signals sent by several electric vans 3 traveling at high speed on the above-mentioned highway.

[0157] Step S2, the background data processing center 1 automatically matches several nearby qualified mother nest base stations 2 for the electric van 3 according to several battery replacement demand signals.

[0158] In step S31, the control group 22 among the qualified mother nest base stations 2 comprehensively considers the three requirements of time, cost and safety to determine the optimal qualified mother nest base stations 2, and determines the safe driving speed range of each electric van 3 according to several battery replacement demand signals.

[0159] Step S321, the control group 22 in the best qualified mother nest base station 2 determines that a mother nest base station 2 performs battery removal and battery placement operations for the electric van 3 according to the safe driving speed range of the electric van 3, the location of the electric van, the power of the auxiliary battery, the road traffic conditions, and the preset battery removal time and the preset battery placement time.

[0160] Step S4: The first qualified drone in the mother nest base station 2 that is determined to meet the conditions takes out the exhausted main battery 312 of the electric van 3 according to the battery replacement demand signal. Specifically:

[0161] Step S41, the control group 22 in the mother nest base station 2 that is determined to meet the conditions determines the priority and the first UAV in the front ranking to perform the battery removal operation according to the battery replacement demand signal, and the signal receiving unit 213 on the first UAV obtains the battery replacement demand signal sent by the above-mentioned electric van 3 through the control group 22;

[0162] Step S42: the first drone goes to the electric van 3 according to the battery replacement demand signal;

[0163] Step S43: After the first UAV arrives at the area within 2 meters around the electric van 3 according to the battery replacement demand signal, the first UAV maintains the same driving speed as the electric van 3;

[0164] Step S44: After the sensing unit 322 on the electric van 3 senses the signal of the arrival of the first UAV, the sensing unit 322 transmits the signal to the signal transmitting unit 321 and the monitoring group 33 on the electric van 3. The signal transmitting unit 321 sends a real-time and accurate battery replacement demand signal to the first UAV. After the signal receiving unit 213 on the first UAV obtains the new battery replacement demand signal, the signal receiving unit 213 and the signal transmitting unit 321 are paired and work together. At the same time, the return control unit in the monitoring group 33 determines whether the first UAV has the conditions to remove the exhausted main battery 312; if so, execute steps S451-S453; if not, execute step S46;

[0165] Step S451: When the return control unit determines that the first drone is in a condition to remove the exhausted main battery 312, the first drone will be guided to enter within 10 cm above the main battery area of ​​the electric van 3 to be removed according to the new battery replacement demand signal and the main battery area acquired by the camera 212;

[0166] Step S452, when the sensing unit 322 on the electric van 3 senses that the first drone has arrived within 10 centimeters of the electric van 3, the sensing unit 322 on the electric van 3 will instruct the first suction cup 323 to reduce the suction force of the exhausted main battery 312, and at the same time, the second suction cup 211 on the first drone will automatically generate suction force to absorb the exhausted main battery 312, and at this time, the first drone is restricted to the top of the main battery 312 due to the magnetic suction force between the first suction cup 323 and the second suction cup 211, so that the second suction cup 211 on the first drone can absorb and remove the exhausted main battery 312 on the electric van 3. Of course, in the process of removing the exhausted main battery, the progress viewing unit in the monitoring group can view the progress of the first drone removing the exhausted main battery in real time. If an emergency occurs or the conditions for removing the exhausted main battery are not met, return to step S44 or execute step S46;

[0167] Step S453: The first drone automatically returns to the nearest mother nest base station 2 with the exhausted main battery 312. The mother nest base station 2 may be the mother nest base station 2 from which the first drone departs, or another nearby mother nest base station 2. At the same time, the exhausted main battery is sent to the battery storage of the mother nest base station 2 for charging for next use.

[0168] Step S46: When the return control unit determines that the first drone does not have the conditions to remove the exhausted main battery 312, the first drone automatically returns to the nearest mother nest base station 2, which can be the mother nest base station 2 from which the first drone departs, or other nearby mother nest base stations 2.

[0169] Step S5: The qualified second drone in the mother nest base station 2 that is determined to meet the conditions places a battery with sufficient power on the electric van 3 according to the battery replacement demand signal. Specifically:

[0170] Step S51, after the control group 22 in the mother nest base station 2 that is determined to meet the conditions obtains the signal returned by the first UAV to the mother nest base station 2, the control group 22 in the mother nest base station 2 determines the priority and the second UAV with the previous ranking to perform the battery placement operation according to the battery replacement demand signal, and the signal receiving unit 213 on the second UAV obtains the battery replacement demand signal sent by the above-mentioned electric van 3 through the control group 22;

[0171] Step S52: the second drone selects a suitable battery with sufficient power from the battery library of the mother nest base station 2, that is, a new main battery 312;

[0172] Step S53: The second drone uses the second suction cup 211 to carry the new main battery 312 and goes to the electric van 3 according to the battery replacement demand signal;

[0173] Step S54: After the second UAV arrives at the area within 2 meters around the electric van 3 according to the battery replacement demand signal, the second UAV maintains the same driving speed as the electric van 3;

[0174] Step S55: After the sensing unit 322 on the electric van 3 senses the signal of the arrival of the second UAV, the sensing unit 322 transmits the signal to the signal transmitting unit 321 and the monitoring group 33 on the electric van 3. The signal transmitting unit 321 sends a real-time and accurate battery replacement demand signal to the second UAV. After the signal receiving unit 213 on the second UAV obtains the new battery replacement demand signal, the signal receiving unit 213 and the signal transmitting unit 321 are paired and work together. At the same time, the return control unit in the monitoring group 33 determines whether the second UAV has the conditions for placing a new main battery 312; if the conditions are met, steps S561-S563 are executed; if the conditions are not met, step S57 is executed;

[0175] Step S561: When the return control unit determines that the second drone is ready to place a new main battery, the second drone will be guided to enter within 10 cm above the area of ​​the electric van 3 where the main battery is to be placed according to the new battery replacement demand signal and the main battery installation area acquired by the camera 212;

[0176] Step S562, when the sensing unit 322 on the electric van 3 senses that the second UAV has arrived within 10 cm of the electric van 3, the sensing unit 322 on the electric van 3 will instruct the first suction cup 323 to generate an adsorption force to adsorb the new main battery 312, and at the same time, the second suction cup 211 on the second UAV will automatically reduce the adsorption force to adsorb the new main battery 312, and at this time, the second UAV is restricted to the area directly above the main battery to be placed due to the magnetic adsorption force between the first suction cup 323 and the second suction cup 211, so that the first suction cup 323 on the electric van 3 can adsorb the new main battery 312 and place the new main battery 312 exactly in the main battery installation area. Of course, in the process of placing the new main battery, the progress viewing unit in the monitoring group can view the progress of the second UAV placing the new main battery in real time. If an emergency occurs or the conditions for placing the new main battery are not met, return to step S55 or execute step S57;

[0177] Step S563: the second drone automatically returns to the nearest mother nest base station 2, which may be the mother nest base station 2 from which the second drone departs, or another nearby mother nest base station 2;

[0178] Step S57: When the return control unit determines that the second drone does not have the conditions to place a new main battery, the second drone automatically returns to the nearest mother nest base station 2 with a battery with sufficient power. The mother nest base station 2 can be the mother nest base station 2 from which the second drone departs, or another nearby mother nest base station 2. At this time, the monitoring group 33 can notify the driver to go to the nearest service area for battery replacement or maintenance.

[0179] Step S6, the electric van 3 automatically switches back to supplying power to the new main battery 312 to ensure the normal endurance of the electric van 3. After the sensing unit 322 senses the signal that the auxiliary battery 311 is no longer supplying power, the sensing unit 322 instructs the first suction cup 323 to restore the original adsorption force to firmly adsorb the new main battery 312 to ensure the stability and safety of the electric van 3. The sensing unit 322 also transmits the signal to the signal transmitting unit 321. The signal transmitting unit 321 simultaneously sends the electric van 3 power replacement completion signal to the background data processing center 1 and the mother nest base station 2. The background data processing center 1 and the mother nest base station 2 will update the relevant data in time and perform corresponding scheduling.

[0180] See also Fig.10The present invention provides a battery replacement system for an electric van traveling at high speed, and the battery replacement system includes: an electric van 3, a background data processing center 1, and a mother nest base station 2. The electric van 3 is an electric van traveling at high speed on a highway; the background data processing center 1 can be used to obtain a battery replacement demand signal sent by the electric van 3 and automatically match a qualified mother nest base station 2 according to the battery replacement demand signal, and can be used to obtain a battery replacement completion signal sent by the electric van 3; the mother nest base station 2 is set in the service area of ​​the highway, which can be used to receive the battery replacement demand signal sent by the background data processing center 1 and automatically plan a battery replacement plan according to the battery replacement demand signal, and can be used to provide a drone 21 for performing battery removal operations and battery placement operations, and can be used to charge exhausted batteries and store batteries with sufficient power, and can also be used to charge, store, dispatch and repair drones 21.

[0181] Specifically, the electric van 3 includes a battery group 31, a control group 32 and a monitoring group 33. The mother nest base station 2 includes a control group 22 and a plurality of drones 21.

[0182] More specifically, the battery pack 31 includes an electrically connected main battery 312 and a secondary battery 311. The main battery 312 is the main power source of the electric van 3, and the secondary battery 311 temporarily provides power when the main battery 312 is exhausted. At the same time, the main battery 312 can transmit power to the secondary battery 311 to ensure that the secondary battery 311 remains fully charged. In addition, the main battery 312 and the secondary battery 311 are both installed on the top of the box body of the electric van 3, so as to facilitate the daily maintenance and inspection of the main battery 312 and the secondary battery 311 and the replacement of the main battery 312.

[0183] The control group 32 includes a first suction cup 323 disposed below the main battery 312, and a signal transmitting unit 321 and a sensing unit 322 disposed below the auxiliary battery 311. The first suction cup 323 can be magnetically connected to the main battery 312 to firmly adsorb the main battery 312 on the top of the box body of the electric van 3, the sensing unit 322 can be electrically connected to the auxiliary battery 311 to facilitate sensing whether the auxiliary battery 311 is supplying power to the electric van 3, and the sensing unit 322 can be electrically connected to the first suction cup 323 to reduce the adsorption force of the first suction cup 323 when the main battery 312 needs to be removed or increase the adsorption force when the main battery 312 needs to be placed, and the sensing unit 322 can be electrically connected to the signal transmitting unit 321 to facilitate transmitting the sensed corresponding signal to the signal transmitting unit 321.

[0184] The monitoring group 33 includes a return control unit and a progress checking unit. The return control unit can be electrically connected to the sensing unit 322 to determine whether the drone 21 can perform the battery removal operation and the battery placement operation, and the progress checking unit can be used to check the progress of the drone 21 performing the battery removal operation and the battery placement operation.

[0185] The control group 22 can be used to receive the battery replacement demand signal sent by the background data processing center 1, such as receiving the location information, driving speed information, power information of the auxiliary battery 311, positive and negative pole information of the main battery 312 and road traffic information of the electric van 3, and then automatically plan the most economical and safest battery replacement plan according to the above-mentioned battery replacement demand signal, and can be used to control multiple drones 21 to perform battery removal operations and battery placement operations, and can also be used to obtain the battery replacement completion signal sent by the signal transmitting unit 321 of the electric van 3.

[0186] Each drone 21 includes a second suction cup 211, a signal receiving unit 213 and a camera 212 arranged at the bottom of the drone 21. The signal receiving unit 213 can be used to receive the battery replacement demand signal sent by the signal transmitting unit 321 on the electric van 3 through the control group 22, so as to be paired with the signal transmitting unit 321 on the corresponding electric van 3 and work in coordination. The second suction cup 211 can be used to firmly absorb the exhausted battery or the fully charged battery to ensure that the battery will not be shaken or accidentally dropped due to external factors during the battery removal or flight. The camera 212 can be used to accurately obtain the main battery installation area when the drone 21 is hovering in a predetermined area above the electric van 3.

[0187] At the same time, the priority and order of operations are set internally by multiple drones 21. This priority and order can be set by the control group 22 according to the power, model, etc. of the drone 21, and can also be adjusted according to the urgency of the operation or other factors. Usually, the drone in front will perform the operation first.

[0188] In addition, the electric van 3 is also equipped with a GPS system and an INS system, so that the background data processing center 1, the mother nest base station 2, and the drone 21 can obtain the location information and driving speed information of the electric van 3. At the same time, the drone 21 is also equipped with a GPS system and an INS system, so that the control group 22 can obtain the location information and driving speed information of the drone 21 in real time and accurately, so as to facilitate the control group 22 to coordinate the operation status of the drone in real time, thereby ensuring the smooth battery replacement of the electric van.

[0189] In some embodiments, the monitoring group 33 is located in the cab and displayed on a display screen, so that the driver can confirm the subsequent unmanned aerial vehicle battery removal and battery placement operations. If it is determined that the unmanned aerial vehicle has the conditions to remove the exhausted main battery or the unmanned aerial vehicle has the conditions to place a fully charged main battery, the driver can click "Confirm" to continue to perform the battery removal operation or the battery placement operation; if it is determined that the unmanned aerial vehicle does not have the conditions to remove the exhausted main battery or the unmanned aerial vehicle does not have the conditions to place a fully charged main battery, the driver can click "Cancel" to interrupt the battery removal operation or the battery placement operation.

[0190] In some embodiments, the size of the second suction cup 211 can be adjusted according to the properties of the operation of the drone 21. If the drone 21 only needs to replace the battery of one electric van 3, the size of the second suction cup 211 can be smaller; if the drone 21 needs to replace the battery of at least two electric vans 3, the size of the second suction cup 211 can be larger.

[0191] In some embodiments, triangular reflective strips are provided at the four corners of the upper surface of the first suction cup 323 so that the camera 212 on the drone 21 can be accurately located at the main battery installation area when the drone 21 subsequently performs a battery placement operation.

[0192] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0193] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A method for replacing power in an electric van during high-speed driving, characterized in that: include: The backend data processing center obtains battery replacement demand signals from several electric vans traveling on the highway; The backend data processing center automatically matches several mother nest base stations that meet the conditions according to several battery replacement demand signals; Several mother nest base stations that meet the conditions determine the safe driving speed range of each electric van based on several battery replacement demand signals; The qualified mother nest base stations respectively determine the mother nest base station for performing the battery removal operation and the mother nest base station for performing the battery placement operation according to the safe driving speed range of each electric van; The drones in the eligible mother nest base station perform the battery removal operation; The drones in the eligible mother nest base station perform the battery placement operation; The backend data processing center and the qualified mother nest base station obtain the battery replacement completion signal sent by the electric van; The method for the drone in the qualified mother nest base station to perform the battery removal operation is specifically as follows: The drone in the eligible mother nest base station obtains the battery replacement demand signal; The drone heads to the electric van based on the battery replacement demand signal; After the drone arrives at the first set area of ​​the electric van, it maintains the same driving speed as the electric van according to the battery replacement demand signal; After the electric van receives the drone’s arrival signal, it determines whether the drone is in a condition to remove the battery; When conditions permit, after the drone is guided into the second set area directly above the battery removal area of ​​the electric van according to the battery replacement demand signal, the drone removes the exhausted battery from the electric van and automatically returns to the nearest mother nest base station with the battery; If the conditions are not met, the drone will automatically return to the nearest mother base station; The electric van includes a battery pack, a control group and a monitoring group. The battery pack includes an electrically connected main battery and a secondary battery. The control group includes a first suction cup disposed below the main battery and a signal transmitting unit and a sensing unit disposed below the secondary battery. The main battery is magnetically connected to the first suction cup, the secondary battery is electrically connected to the sensing unit, and the first suction cup, the signal transmitting unit and the monitoring group are all electrically connected to the sensing unit. The monitoring group is disposed in the cab of the electric van to facilitate the driver to confirm when performing battery removal and battery placement operations on the drone. The mother nest base station includes a control group and multiple drones, and the drone includes a second suction cup, a signal receiving unit and a camera arranged at the bottom of the drone, the signal receiving unit is used to receive the battery replacement demand signal sent by the signal transmitting unit, the second suction cup is used to absorb the exhausted battery or the fully charged battery, the camera is used to obtain the installation area of ​​the main battery, the control group is used to receive the battery replacement demand signal sent by the background data processing center and automatically plan the battery replacement plan according to the battery replacement demand signal, and is used to control the drone to perform battery removal and battery placement operations; When the sensing unit on the electric van senses that the drone has arrived at the second set area of ​​the electric van, the sensing unit on the electric van will instruct the first suction cup to reduce the suction force of the exhausted main battery. At the same time, the second suction cup on the drone will automatically generate suction force to absorb the exhausted main battery. At this time, the drone is restricted to the top of the main battery due to the magnetic suction force between the first suction cup and the second suction cup, so that the second suction cup on the drone can absorb and remove the exhausted main battery on the electric van.

2. The method for replacing power of an electric van during high-speed driving according to claim 1, characterized in that: The method for determining the mother nest base station for performing the battery removal operation and the battery placement operation is specifically as follows: Several qualified mother nest base stations determine, based on the safe driving speed range of the electric van, that one mother nest base station will perform battery removal and battery placement operations for one electric van.

3. The method for replacing power of an electric van during high-speed driving according to claim 1, characterized in that: The method for determining the mother nest base station for performing the battery removal operation and the battery placement operation is specifically as follows: A plurality of mother nest base stations that meet the conditions determine, based on the safe driving speed range of each electric van, that one mother nest base station performs battery removal operations and battery placement operations for at least two electric vans; The qualified mother nest base station synchronously sends a safe driving speed control interval instruction to at least two electric vans to keep a certain distance between the at least two electric vans.

4. The method for replacing power of an electric van during high-speed driving according to claim 1, characterized in that: The method for determining the mother nest base station for performing the battery removal operation and the battery placement operation is specifically as follows: Several qualified mother nest base stations are determined according to the safe driving speed range of the electric van, and two mother nest base stations are used to perform battery removal and battery placement operations for one electric van.

5. The method for replacing power of an electric van during high-speed driving according to claim 1, characterized in that: The method for determining the mother nest base station for performing the battery removal operation and the battery placement operation is specifically as follows: Among several mother nest base stations that meet the conditions, at least two mother nest base stations are determined to perform battery removal operations and battery placement operations for at least two electric vans according to the safe driving speed range of each electric van.

6. The method for replacing power of an electric van during high-speed driving according to claim 1, characterized in that: The method for the drone in the qualified mother nest base station to perform the battery placement operation is specifically as follows: The drone in the eligible mother nest base station obtains the battery replacement demand signal; The drone selects a suitable battery with sufficient power from the mother base station; The drone carries the battery to the electric van based on the battery replacement demand signal; After the drone arrives at the first set area of ​​the electric van, it maintains the same driving speed as the electric van according to the battery replacement demand signal; After the electric van receives the drone’s arrival signal, it determines whether the drone has the conditions to place the battery; When conditions permit, after the drone is guided into the second set area directly above the battery placement area of ​​the electric van according to the battery replacement demand signal, the drone will place the battery with sufficient power on the electric van and automatically return to the nearest mother nest base station; When the conditions are not met, the drone will automatically return to the nearest mother base station carrying the battery.

7. The method for replacing power of an electric van during high-speed driving according to any one of claims 1 to 6, characterized in that: Before the background data processing center obtains the battery replacement demand signals sent by the electric vans traveling on the highway, the following steps are also included: When the main battery of an electric van running on a highway runs out of power, the electric van automatically switches to the auxiliary battery for power supply; The sensing unit on the electric van senses the auxiliary battery power supply signal and transmits the signal to the signal transmitting unit on the electric van; The signal transmitting unit sends the battery replacement demand signal of the electric van to the background data processing center; After the drone in the qualified mother nest base station performs the battery placement operation, the electric van also includes: automatically switching back to power supply by the main battery.

8. A battery replacement system for executing the battery replacement method of an electric van during high-speed driving as claimed in claim 1, characterized in that: include: Electric vans; A backend data processing center is used to obtain a battery replacement demand signal sent by the electric van and automatically match a qualified mother nest base station according to the battery replacement demand signal, and to obtain a battery replacement completion signal sent by the electric van; A mother nest base station, used to receive the battery replacement demand signal sent by the background data processing center and automatically plan the battery replacement plan according to the battery replacement demand signal, and to provide drones for performing battery removal operations and battery placement operations; Among them, the electric van includes a battery pack, a control group and a monitoring group. The battery pack includes an electrically connected main battery and a secondary battery. The control group includes a first suction cup arranged under the main battery and a signal transmitting unit and a sensing unit arranged under the secondary battery. The main battery is magnetically connected to the first suction cup, and the secondary battery is electrically connected to the sensing unit. The first suction cup, the signal transmitting unit and the monitoring group are all electrically connected to the sensing unit. The monitoring group is arranged in the cab of the electric van to facilitate the driver to confirm when performing battery removal and battery placement operations on the drone.

9. The battery replacement system according to claim 8, characterized in that: The drone includes a second suction cup, a signal receiving unit and a camera arranged at the bottom of the drone. The signal receiving unit is used to receive the battery replacement demand signal sent by the signal transmitting unit, the second suction cup is used to absorb a depleted battery or a fully charged battery, and the camera is used to obtain the installation area of ​​the main battery.

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