Charging system and platform, drone, charging device and method, and storage medium
By introducing signal electrode detection technology into the drone charging system, the problem of uncertain positive and negative pole connection of drone battery charging is solved, ensuring the safety and stability of charging and reducing maintenance costs.
Patent Information
- Application Number
- CN202110753646.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-07-02
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2041-07-02
AI Technical Summary
Existing drone battery charging methods cannot determine whether the positive and negative poles are effectively connected, resulting in unstable charging and potential safety risks.
A charging system is designed, including a bracket and a charging platform. Signal electrodes are used to detect whether the positive and negative charging poles of the drone battery are effectively connected to the electrodes of the charging platform. Signals are transmitted through contact electrodes and serial port electrodes to ensure that the drone lands smoothly and completes the effective connection of the charging electrodes.
It realizes effective connection detection of positive and negative poles before charging the drone battery, ensures charging safety and stability, avoids short circuit and wear between electrodes, and reduces maintenance costs.
Smart Images

Figure CN113263930B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of drone technology, and in particular to a charging system and platform, a drone, a charging device and method, and a storage medium. Background Art
[0002] After a drone completes its mission, it typically needs to charge its battery. The charging method for drone batteries varies depending on how the aircraft is centered on the landing pad. For example, a "well"-type centering solution is typically used to charge drone batteries. This involves placing charging positive and negative electrodes on a centering arm. After the drone descends, the arm's centering action aligns the positive and negative electrodes of the drone's battery with those on the arm, allowing the drone's battery to charge. However, this solution fails to ensure effective connection between the positive and negative electrodes of the drone's battery and the arm. Summary of the Invention
[0003] In view of this, the embodiments of the present application are dedicated to providing a charging system and platform, a drone, a charging device and method, and a storage medium, which can determine whether the charging positive and negative poles of the drone battery are effectively connected before charging the drone battery.
[0004] In a first aspect, the present application provides a charging system for an unmanned aerial vehicle (UAV), comprising: a charging device, comprising a bracket and a first charging electrode, a second charging electrode and at least one first signal electrode arranged on the bracket, wherein the bracket is used to connect the charging device to the fuselage of the UAV; a charging platform, comprising a third charging electrode, a fourth charging electrode and at least one second signal electrode, wherein the third charging electrode and the fourth charging electrode are used to be connected to the first charging electrode and the second charging electrode, respectively, when the UAV is docked on the charging platform, so as to charge the UAV, and the at least one second signal electrode is connected to the at least one first signal electrode, respectively, when the UAV is docked on the charging platform, so as to determine whether the first charging electrode and the second charging electrode are effectively connected to the third charging electrode and the fourth charging electrode, respectively.
[0005] In one embodiment, the bracket includes: a first extension portion for supporting the first charging electrode; a second extension portion for supporting the second charging electrode, wherein the charging platform is provided with a first accommodating space corresponding to the first extension portion and a second accommodating space corresponding to the second extension portion, wherein the third charging electrode is arranged on the inner wall of the first accommodating space, and the fourth charging electrode is arranged on the inner wall of the second accommodating space.
[0006] In one embodiment, the at least one first signal electrode is disposed on the first extension portion and / or the second extension portion, and is spaced apart from the first charging electrode or the second charging electrode.
[0007] In one embodiment, the bracket further includes: at least one third extension portion, configured to carry the at least one first signal electrode.
[0008] In one embodiment, the at least one third extension portion includes: two third extension portions, the two third extension portions are arranged in an array with the first extension portion and the second extension portion, and the two third extension portions are arranged diagonally, and the first extension portion and the second extension portion are arranged diagonally.
[0009] In one embodiment, the at least one third extension portion includes: two third extension portions, the at least one first signal electrode includes: four first signal electrodes, and the setting direction of the two first signal electrodes of one of the two third extension portions is perpendicular to the setting direction of the two first signal electrodes of the other of the two third extension portions.
[0010] In one embodiment, the bracket further includes: a fourth extension portion, configured to support the first charging electrode and the second charging electrode.
[0011] In one embodiment, the at least one first signal electrode is disposed on the fourth extension portion and is spaced apart from the first charging electrode and the second charging electrode.
[0012] In one embodiment, the at least one first signal electrode includes at least one first contact electrode for providing a level signal; and / or at least one first serial port electrode for providing a communication signal; the at least one second signal electrode includes at least one second contact electrode for providing a level signal; and / or at least one second serial port electrode for providing a communication signal.
[0013] In one embodiment, the bracket includes an extension portion for supporting the first charging electrode, the second charging electrode and the at least one first signal electrode, the extension portion is conical, cylindrical or funnel-shaped, and the charging platform is provided with a receiving space for accommodating the extension portion, the receiving space is conical, cylindrical or funnel-shaped.
[0014] In one embodiment, the first charging electrode, the second charging electrode, the at least one first signal electrode, the third charging electrode, the fourth charging electrode, and the at least one second signal electrode are in the form of a ring, a quarter ring, or a ring smaller than a quarter ring.
[0015] In one embodiment, the support comprises at least one tripod of the drone.
[0016] The second aspect of the present application provides a charging platform for a drone, comprising: a third charging electrode and a fourth charging electrode, for respectively connecting to a first charging electrode and a second charging electrode of a charging device of the drone when the drone is docked on the charging platform to charge the drone; and at least one second signal electrode, for respectively connecting to at least one first signal electrode of the charging device when the drone is docked on the charging platform to determine whether the first charging electrode and the second charging electrode are effectively connected to the third charging electrode and the fourth charging electrode, respectively.
[0017] The third aspect of the present application provides a charging device for a drone, comprising: a bracket for connecting the charging device to the body of the drone; a first charging electrode, a second charging electrode and at least one first signal electrode arranged on the bracket, the first charging electrode and the second charging electrode being used to respectively connect to the third charging electrode and the fourth charging electrode of the charging platform when the drone is docked on the charging platform to charge the drone, and the at least one first signal electrode being used to respectively connect to the at least one second signal electrode of the charging platform when the drone is docked on the charging platform to determine whether the first charging electrode and the second charging electrode are effectively connected to the third charging electrode and the fourth charging electrode, respectively.
[0018] A fourth aspect of the present application provides a drone, comprising: a fuselage; and a charging device as described in the above embodiment, connected to the fuselage via the bracket.
[0019] In one embodiment, the support is at least one tripod of the drone.
[0020] A fifth aspect of the present application provides a charging method for a drone, comprising: receiving a signal from between the drone and the charging platform through signal electrodes on the drone and the charging platform; determining, based on the signal, that the charging electrode of the drone is effectively connected to the charging electrode of the charging platform; and charging the drone through the charging platform when it is determined that the charging electrode of the drone is effectively connected to the charging electrode of the charging platform.
[0021] In one embodiment, the receiving of signals from between the drone and the charging platform through signal electrodes on the drone and the charging platform includes: receiving a level signal from between the drone and the charging platform through at least one first contact electrode on the drone and at least one second contact electrode on the charging platform; and / or receiving a communication signal from between the drone and the charging platform through at least one first serial port electrode on the drone and at least one second serial port electrode on the charging platform.
[0022] In a sixth aspect, the present application provides a charging device, comprising: a receiving module, configured to receive a signal from between the drone and the charging platform through signal electrodes on the drone and the charging platform; a determination module, configured to determine, based on the signal, that the charging electrode of the drone is effectively connected to the charging electrode of the charging platform; and a charging module, configured to charge the drone through the charging platform when it is determined that the charging electrode of the drone is effectively connected to the charging electrode of the charging platform.
[0023] In a seventh aspect, the present application provides a charging device, comprising: a processor; and a memory for storing instructions executable by the processor, wherein the processor is used to execute the charging method described in any of the above embodiments.
[0024] In a seventh aspect, the present application provides a computer-readable storage medium, wherein the storage medium stores a computer program, and the computer program is used to execute the charging method described in any of the above embodiments.
[0025] The charging system provided in the embodiment of the present application can determine whether the first charging electrode and the second charging electrode are effectively connected to the third charging electrode and the fourth charging electrode respectively through the signal sent by the connection between the first signal electrode on the charging device of the drone and the second signal electrode on the charging platform, thereby knowing whether the drone has completed a stable landing. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1a Shown is a schematic diagram of the positional relationship of multiple extensions on a charging device provided in one embodiment of the present application.
[0027] Figure 1b Shown is a schematic diagram of the positional relationship of multiple extensions on a charging device provided in another embodiment of the present application.
[0028] Figure 1c FIG. 1 is a schematic diagram showing the arrangement direction of two first signal electrodes in the third extension portion provided in one embodiment of the present application.
[0029] Figure 1dShown is a schematic diagram of the positional relationship of multiple extensions on a charging device provided in yet another embodiment of the present application.
[0030] Figure 2a Shown is a schematic structural diagram of the extension portion and the accommodating space provided in one embodiment of the present application.
[0031] Figure 2b Shown is a schematic structural diagram of an extension portion and a receiving space provided in another embodiment of the present application.
[0032] Figure 2c Shown is a structural schematic diagram of an extension portion and an accommodating space provided in yet another embodiment of the present application.
[0033] Figure 3a Shown is a schematic cross-sectional view of a metal contact point constituting an electrode provided by one embodiment of the present application.
[0034] Figure 3b Shown is a schematic cross-sectional view of a metal contact point constituting an electrode provided in another embodiment of the present application.
[0035] Figure 3c Shown is a cross-sectional schematic diagram of the contact between the accommodating space and the extension portion provided by one embodiment of the present application.
[0036] Figure 4a Shown is a structural schematic diagram of the dimensions of the metal contact points constituting the electrodes provided by one embodiment of the present application.
[0037] Figure 4b Shown is a structural schematic diagram of the dimensions of the metal contact points constituting the electrodes provided in another embodiment of the present application.
[0038] Figure 4c Shown is a structural schematic diagram of the dimensions of metal contact points constituting electrodes provided in yet another embodiment of the present application.
[0039] Figure 5a Shown is a cross-sectional schematic diagram of the positional relationship of two electrodes located on the same extension portion provided by an embodiment of the present application.
[0040] Figure 5b Shown is a schematic diagram of the positional relationship of multiple extension parts provided in one embodiment of the present application.
[0041] Figure 6 Shown is a schematic structural diagram of a drone provided in one embodiment of the present application.
[0042] Figure 7 Shown is a flow chart of a charging method provided in one embodiment of the present application.
[0043] Figure 8Shown is a block diagram of a charging device provided in one embodiment of the present application.
[0044] Figure 9 Shown is a block diagram of a charging device provided in another embodiment of the present application. DETAILED DESCRIPTION
[0045] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0046] Currently, the most common drone is the quadcopter, though there are also drones with other rotor counts, such as two and six. Regardless of the type of drone, it generally consists of a fuselage, arms, tripods, power components, and batteries. To ensure a smooth landing, the drone has four tripods protruding from the fuselage. This allows the quadcopter to be centered on the charging platform, allowing the positive and negative poles of the drone's battery to align with the positive and negative poles on the centering arms for charging.
[0047] Besides the aforementioned method of charging drone batteries through centrifugal charging, other methods can also be used to replenish drone energy. For example, battery replacement is currently a common method in the market, but it is very expensive and requires a small robotic arm with at least two-dimensional movement. For example, the current battery installation method for quadcopters, such as long-term battery replacement, will cause significant wear and tear on structural components such as the battery clips, resulting in high maintenance costs. Therefore, drone battery charging remains the primary method for replenishing drone energy.
[0048] When a drone lands on a charging platform for charging, it is necessary to ensure that the charging electrodes on the drone are in stable contact with the charging electrodes on the charging platform to ensure safe charging.
[0049] Therefore, in order to determine whether the positive and negative charging poles of the drone are effectively connected before charging the drone battery, an embodiment of the present application provides a charging system for a drone, which includes: a charging device, including a bracket and a first charging electrode, a second charging electrode and at least one first signal electrode arranged on the bracket, and the bracket is used to connect the charging device to the fuselage of the drone; a charging platform, including a third charging electrode, a fourth charging electrode and at least one second signal electrode, the third charging electrode and the fourth charging electrode are used to be connected to the first charging electrode and the second charging electrode respectively when the drone is docked on the charging platform to charge the drone, and the at least one second signal electrode is connected to the at least one first signal electrode respectively when the drone is docked on the charging platform, and is used to determine whether the first charging electrode and the second charging electrode are effectively connected to the third charging electrode and the fourth charging electrode respectively.
[0050] In one embodiment, the bracket is used to connect the charging device to the battery on the fuselage of the drone, so as to charge the battery through the charging device.
[0051] When the drone lands, it is impossible to determine whether the first charging electrode and the second charging electrode are effectively connected to the third charging electrode and the fourth charging electrode. Therefore, at least one first signal electrode can be additionally provided in the charging device. The above-mentioned at least one first signal electrode can be connected to the corresponding at least one second signal electrode on the charging platform to form a loop to provide a signal to the control system (for example, the control system of the charging system, the charging device or the charging platform, or a third-party control system independent of the charging system, the charging device and the charging platform). When the signal is detected, it indicates that the first charging electrode and the second charging electrode are effectively connected to the third charging electrode and the fourth charging electrode.
[0052] However, it should be noted that the embodiment of the present application does not specifically limit the number of the at least one first signal electrode and the at least one second signal electrode, and those skilled in the art may make different choices based on actual needs.
[0053] At the same time, the embodiments of the present application do not specifically limit the types of the first signal electrode and the second signal electrode. Those skilled in the art may make different choices based on actual needs. For example, at least one first signal electrode of the charging device includes at least one first contact electrode for providing a level signal; and / or at least one first serial port electrode for providing a communication signal. At least one second signal electrode of the charging platform includes at least one second contact electrode for providing a level signal; and / or at least one second serial port electrode for providing a communication signal.
[0054] In one embodiment, the contact electrode may also be referred to as a contact signal line, which is formed by a metal contact point. In another embodiment, the serial port electrode is an RX pin or a TX pin of a serial port signal line, which is also formed by a metal contact point.
[0055] However, it should be noted that the embodiments of the present application do not specifically limit the number and position of at least one first contact electrode, at least one first serial port electrode, at least one second contact electrode, and at least one second serial port electrode. Those skilled in the art may make different choices based on actual needs.
[0056] The RX pin of the serial port signal line of the charging platform is connected / contacted with the TX pin of the serial port signal line of the charging device, and the TX pin of the serial port signal line of the charging platform is connected / contacted with the RX pin of the serial port signal line of the charging device.
[0057] When the first contact electrode and the second contact electrode are connected, the level signal transmitted by the contact electrodes can be used to preliminarily determine whether the first and second charging electrodes of the charging device are effectively connected to the third and fourth charging electrodes of the charging platform at a specific moment. When the first and second serial port electrodes are connected, the communication signal emitted by the serial port electrodes can be used to further determine whether the first and second charging electrodes are effectively connected to the third and fourth charging electrodes of the charging platform within a preset time period, thereby more accurately determining whether the drone has landed smoothly.
[0058] In one embodiment, the bracket includes a first extension portion for carrying a first charging electrode and a second extension portion for carrying a second charging electrode, wherein the charging platform is provided with a first accommodation space corresponding to the first extension portion and a second accommodation space corresponding to the second extension portion.
[0059] In order to avoid short circuit between electrodes, the first charging electrode and the second charging electrode may be arranged on different extension portions. Similarly, the third charging electrode and the fourth charging electrode may be arranged in different accommodation spaces.
[0060] Specifically, the first accommodation space on the charging platform is used to carry the third charging electrode, and the second accommodation space is used to carry the fourth charging electrode. For example, the third charging electrode is arranged on the inner wall of the first accommodation space, and the fourth charging electrode is arranged on the inner wall of the second accommodation space.
[0061] The first charging electrode is arranged on the outer wall of the first extension portion, the second charging electrode is arranged on the outer wall of the second extension portion, the third charging electrode is arranged on the inner wall of the first accommodating space, and the fourth charging electrode is arranged on the inner wall of the second accommodating space, so that when the accommodating space accommodates the extension portion, the first charging electrode and the second charging electrode are respectively connected to the third charging electrode and the fourth charging electrode.
[0062] In one embodiment, at least one first signal electrode is disposed on the first extension portion and / or the second extension portion and is spaced apart from the first charging electrode or the second charging electrode.
[0063] In order to more intuitively determine whether the first charging electrode on the first extension portion is effectively connected to the third charging electrode in the first accommodation space on the charging platform, the first signal electrode and the first charging electrode can be set on the first extension portion at the same time. When the signal emitted by the first signal electrode is detected, it means that the first extension portion has completely fallen into the first accommodation space of the charging platform, which means that the first charging electrode and the third charging electrode of the charging platform are effectively connected.
[0064] Similarly, the first signal electrode and the second charging electrode can also be disposed on the second extension portion at the same time. When the first charging electrode and the second charging electrode are effectively connected to the third charging electrode and the fourth charging electrode respectively, it indicates that the drone has completed landing.
[0065] However, the embodiment of the present application does not specifically limit the number of first signal electrodes on the first extension portion and the second extension portion. The first extension portion and the second extension portion may carry one first signal electrode or more than one first signal electrode.
[0066] In order to avoid short circuit between electrodes, at least one first signal electrode may be spaced apart from the first charging electrode or the second charging electrode.
[0067] At least one first signal electrode is arranged on the outer wall of the first extension portion and / or the second extension portion, and at least one second signal electrode is arranged on the inner wall of the first accommodating space and / or the second accommodating space, so that when the accommodating space accommodates the extension portion, the at least one first signal electrode is connected to the at least one second signal electrode.
[0068] In one embodiment, the bracket further includes: at least one third extension portion for carrying at least one first signal electrode.
[0069] At least one first signal electrode is arranged on the outer wall of at least one third extension portion, and at least one second signal electrode is arranged on the inner wall of at least one third accommodating space, so that when the accommodating space accommodates the extension portion, the at least one first signal electrode is connected to the at least one second signal electrode.
[0070] In order to avoid a short circuit between electrodes caused by the first signal electrode and the first charging electrode or the second charging electrode being distributed on one extension portion, the first signal electrode may be separately provided on the third extension portion.
[0071] However, the embodiment of the present application does not specifically limit the number of first signal electrodes on each third extension portion in at least one third extension portion. One first signal electrode can be set on one third extension portion, and more than one first signal electrode can be set on one third extension portion. At the same time, the embodiment of the present application does not specifically limit the number of third extension portions.
[0072] For example, the at least one third extension portion includes: two third extension portions, the two third extension portions are arranged in an array with the first extension portion and the second extension portion, and the two third extension portions are arranged diagonally, and the first extension portion and the second extension portion are arranged diagonally.
[0073] In order to prevent the drone from landing unsteadily or there are stains or installation errors on the first extension part and the second extension part, which may cause the first charging electrode and the second charging electrode to have poor contact with the third charging electrode and the fourth charging electrode of the charging platform, the two third extension parts can be arranged diagonally, and the first extension part and the second extension part can be arranged diagonally.
[0074] Figure 1a It is a schematic diagram showing the positional relationship among the first extension portion, the second extension portion and the two third extension portions, which shows that the two third extension portions are arranged in an array with the first extension portion and the second extension portion.
[0075] like Figure 1a As shown, the position of the first extension is the position of circle A, the position of the second extension is the position of circle B, and the positions of the two third extensions are the positions of circles C and D. In other words, the above four extensions are arranged in a 2*2 array, wherein the first extension and the second extension are arranged diagonally, and the two third extensions are arranged diagonally. At this time, when the signals emitted by the signal electrodes on the two third extensions at the positions of C and D are detected, it means that the two third extensions at the positions of C and D have completely fallen into the accommodation space of the charging platform. Since the two third extensions at the diagonal line have completely fallen into the accommodation space of the charging platform, this also means that the first extension and the second extension at the diagonal line have completely fallen into the accommodation space of the charging platform. Therefore, the first charging electrode and the second charging electrode have been effectively connected to the third charging electrode and the fourth charging electrode of the charging platform.
[0076] However, when the at least one third extension includes four third extensions, such as Figure 1bAs shown, the first extension is located at the position of circle A, the second extension is located at the position of circle B, and the four third extensions are located at the positions of circles C, D, E, and F. In other words, the six extensions are arranged at the six vertices of a regular hexagon. Similarly, since the four third extensions on the diagonal line have all completely fallen into the storage space of the charging platform, this also means that the first and second extensions on the diagonal line have completely fallen into the storage space of the charging platform. Therefore, the first and second charging electrodes are effectively connected to the third and fourth charging electrodes of the charging platform.
[0077] But it should be noted that Figure 1a and 1b The arrangement of the first extension portion, the second extension portion and the third extension portion shown is only an example. The embodiment of the present application does not limit the specific arrangement of the first extension portion, the second extension portion and the third extension portion, which may vary depending on the number of the third extension portion.
[0078] In one embodiment, when the at least one third extension portion includes two third extension portions, and the at least one first signal electrode includes four first signal electrodes, one of the two third extension portions carries two first signal electrodes, and the other of the two third extension portions carries two first signal electrodes. The two first signal electrodes on one of the two third extension portions are arranged in a direction perpendicular to the direction of the two first signal electrodes on the other of the two third extension portions.
[0079] like Figure 1c As shown, the positions of the circular rings on the left and right are the positions of the two third extensions. The two black rings smaller than a quarter of the circle in the left ring are two first signal electrodes, and the two first signal electrodes are oriented horizontally. The two black rings smaller than a quarter of the circle in the right ring are two first signal electrodes, and the two first signal electrodes are oriented vertically. Therefore, the setting direction of the two first signal electrodes of one of the two third extensions is perpendicular to the setting direction of the two first signal electrodes of the other of the two third extensions.
[0080] By setting two pairs of first signal electrodes in directions perpendicular to each other, it is possible to detect whether the third extension portion falls into the third accommodation space of the charging platform in all directions, thereby being able to more accurately determine whether the first charging electrode and the second charging electrode are sufficiently fitted with the third charging electrode and the fourth charging electrode.
[0081] In order to avoid deformation of the extension portion in the same direction, which may cause the first charging electrode and the second charging electrode to be unable to fully fit with the third charging electrode and the fourth charging electrode, as shown in FIG. Figure 1d As shown, the two third extension portions are diagonally arranged (located at the lower left and upper right, respectively), the first extension portion and the second extension portion are diagonally arranged (located at the upper left and lower right, respectively), and the setting direction (horizontal direction) of the two first signal electrodes of one of the two third extension portions is perpendicular to the setting direction (vertical direction) of the two first signal electrodes of the other of the two third extension portions.
[0082] In the above-described embodiment, the first charging electrode and the second charging electrode are located in different extension portions. The following embodiments will focus on the case where the first charging electrode and the second charging electrode are located in the same extension portion.
[0083] In another embodiment of the present application, the bracket further includes a fourth extension portion for supporting the first charging electrode and the second charging electrode.
[0084] In order to avoid a short circuit between the first charging electrode and the second charging electrode, the first charging electrode and the second charging electrode are spaced apart.
[0085] In one embodiment, at least one first signal electrode is disposed on the outer wall of the fourth extension portion and is spaced apart from the first charging electrode and the second charging electrode. At least one second signal electrode is disposed on the inner wall of the fourth accommodation space corresponding to the fourth extension portion.
[0086] In order to avoid a short circuit between the at least one first signal electrode, the first charging electrode and the second charging electrode, the at least one first signal electrode is spaced apart from the first charging electrode and the second charging electrode.
[0087] By arranging the first signal electrode, the first charging electrode and the second charging electrode on one extension portion, it is not only possible to more intuitively determine whether the first charging electrode and the second charging electrode are effectively connected to the third charging electrode and the fourth charging electrode, but also the structure of the charging device can be simplified.
[0088] In another embodiment of the present application, all of the aforementioned extensions may be conical, cylindrical, or funnel-shaped, and all of the aforementioned accommodating spaces for accommodating the extensions may also be conical, cylindrical, or funnel-shaped. The shape of the extension matches the shape of the corresponding accommodating space. For example, when the extension is conical, the accommodating space is also conical.
[0089] like Figure 2a The cone is shown as Figure 2b The cylinder is shown as Figure 2c Shown as a funnel.
[0090] In one embodiment, when the first extension portion and the second extension portion are in the shape of a cone, cylinder, or funnel, the first charging electrode and the second charging electrode may be supported on the outer wall of the cone, cylinder, or funnel. The ring on the outer wall of the cone, cylinder, or funnel serves as the metal contact point between the first charging electrode and the second charging electrode, such as Figure 3a The black circles shown correspond to the metal contact points constituting the first charging electrode and the second charging electrode.
[0091] In one embodiment, when the first extension portion and the second extension portion are cylindrical or funnel-shaped, the first charging electrode and the second charging electrode can be carried on the outside of the bottom surface of the cylinder or funnel, and the ring on the outside of the bottom surface of the cylinder or funnel serves as a metal contact point for the first charging electrode and the second charging electrode, such as Figure 3a The black circles shown correspond to the metal contact points constituting the first charging electrode and the second charging electrode.
[0092] In one embodiment, when the first extension portion and the second extension portion are funnel-shaped, the first charging electrode and the second charging electrode can be supported on the outer side wall of the step of the funnel, and the broken line of the outer side wall of the step of the funnel constitutes the metal contact point of the first charging electrode and the second charging electrode, such as Figure 3b The black broken lines shown correspond to the metal contact points constituting the first charging electrode and the second charging electrode.
[0093] Of course, when the first charging electrode and the second charging electrode are arranged on the same extension portion, one of the first charging electrode and the second charging electrode can be carried on the outside of the bottom surface of the cylinder or the funnel, and the other of the first charging electrode and the second charging electrode can be carried on the side wall of the cylinder or the funnel. The embodiment of the present application does not specifically limit the positional relationship between the first charging electrode and the second charging electrode.
[0094] In one embodiment, when the first signal electrode and the first charging electrode or the second charging electrode are arranged on the same extension portion, the first charging electrode or the second charging electrode can be carried on the outer wall of the cone, cylinder or funnel, and the first signal electrode can be arranged on the outer wall of the cone, cylinder or funnel at a certain distance from the first charging electrode or the second charging electrode. The embodiment of the present application does not specifically limit the positional relationship between the first signal electrode and the first charging electrode or the second charging electrode.
[0095] In one embodiment, when the first signal electrode and the first charging electrode and the second charging electrode are arranged on the same extension portion, the first charging electrode and the second charging electrode can be carried on the outer side of the bottom surface of a cylinder or a funnel. Then, the first signal electrode can be arranged on the outer wall of the cylinder or the funnel, or be arranged on the outer side of the bottom surface of the cylinder or the funnel at a certain distance from the first charging electrode and the second charging electrode. The embodiment of the present application does not specifically limit the positional relationship between the first signal electrode and the first charging electrode and the second charging electrode.
[0096] In one embodiment, the third charging electrode, the fourth charging electrode and the at least one second signal electrode of the charging platform are arranged inside the accommodation space to connect / contact the first charging electrode, the second charging electrode and the at least one first signal electrode. The distribution of the plurality of accommodation spaces is the same as the distribution of the plurality of extensions, such as Figure 1a and 1b shown.
[0097] For example, the structure of the accommodation space and the extension part are both funnel-shaped. Figure 3c FIG1 shows a cross-sectional view of the contact between the receiving space and the extension portion provided by one embodiment of the present application. Figure 3c As shown, the mesh-shaped zigzag electrode of the accommodating space 31 is connected / contacted with the black zigzag electrode of the extending portion 32 .
[0098] However, it should be noted that the embodiment of the present application does not limit the size of the metal contact points constituting the above electrodes. For example, the metal contact points can be as follows: Figure 3a The black ring shown can also be Figure 4a The black semicircular ring shown can also be Figure 4b The black quarter ring shown can also be Figure 4c The black shown is smaller than a quarter of a circle. That is, the metal contact points constituting the electrodes can be arranged around the ring extension or the accommodating space, or can be arranged around half, a quarter, or less than a quarter of the ring extension or the accommodating space.
[0099] In order to ensure a larger effective contact area of the charging electrodes to achieve fast charging, the metal contact points constituting the first charging electrode, the second charging electrode, the third charging electrode and the fourth charging electrode are arranged in a circle of ring extensions and accommodating spaces.
[0100] In one embodiment, the serial port electrode and the contact electrode can be disposed on the same extension portion or accommodation space, i.e., one contact electrode corresponds to one serial port electrode. After detecting the level signal emitted by the contact electrode, communication is performed using the serial port electrode to determine whether the extension portion where the serial port electrode and the contact electrode are located is completely within the accommodation space of the charging platform.
[0101] When the serial port electrodes and the contact electrodes are arranged on the same extension portion or accommodation space, the distribution of the contact electrodes and the serial port electrodes can be as follows: Figure 5a As shown, the extensions or accommodating spaces of the contact electrodes and the serial electrodes are arranged in an area smaller than a quarter of a circle and are spaced apart, thereby not only preventing short circuits between the electrodes but also ensuring effective fitting of the electrodes (i.e., the sizes of the metal contact points constituting the serial electrodes and the contact electrodes are each smaller than a quarter of a circle).
[0102] Of course, the serial port electrodes and the contact electrodes may also be arranged in different extension parts and accommodation spaces, and those skilled in the art may make different choices according to actual needs.
[0103] In one embodiment, if Figure 5b As shown, when the metal contact points constituting the first charging electrode and the second charging electrode are arranged in a circle around the first extension portion and the second extension portion, and the metal contact points constituting the serial port electrode and the contact electrode are arranged in a circle less than a quarter of the third extension portion, the first charging electrode and the second charging electrode are respectively arranged in the upper left corner and the lower right corner, and the serial port electrode and the contact electrode are respectively arranged in the lower left corner and the upper right corner.
[0104] In one embodiment, the bracket of the charging device includes at least one tripod of the drone. That is, one extension of the bracket can correspond to one tripod of the drone. Therefore, when the bracket includes four extensions, the four tripods of the drone constitute the bracket of the charging device, and the four tripods of the drone on which the charging electrodes and first signal electrodes are provided constitute the charging device. However, it should be understood that the number of extensions may be less than the number of tripods. In other words, not all tripods of the drone constitute the bracket of the charging device. For example, if two of the four tripods are provided with extensions, then these two tripods constitute the bracket.
[0105] like Figure 6 The figure shows a schematic diagram of the structure of a drone provided by an embodiment of the present application. Figure 6 As shown, the drone 60 includes: a fuselage 61 ; and a charging device 62 as described in any of the above embodiments, wherein the charging device 62 is connected to the fuselage 61 via a bracket 621 .
[0106] It should be noted that the drone 60 may also include other components, such as wings, etc. The embodiment of the present application does not limit the specific composition of the drone.
[0107] In one embodiment, the bracket 621 is at least one tripod of the drone, that is, the tripod of the drone 60 has an extension portion, and the extension portion carries the charging electrode and the signal electrode. The distribution of the tripods carrying different extension portions is as follows Figure 1a and 1bAs shown, that is, Figure 1a As shown, when the number of the extensions is four, the number of the legs is also four, and the four legs are distributed in a square shape, as shown in FIG. Figure 1b As shown, when there are six extensions, there are also six legs, and the six legs are arranged in a hexagonal pattern. It should be understood that the number of extensions can also be less than the number of legs. For example, two of the four legs are provided with extensions, while the other two are not provided with extensions.
[0108] The charging process of the drone is as follows: the drone carries the charging device and begins to land on the charging platform. When the contact electrode in the extension part of the drone contacts the contact electrode in the accommodation space of the charging platform, it can be preliminarily determined that the two charging electrodes in the charging device of the drone and the two charging electrodes of the charging platform have been effectively connected. At the same time, the drone and the charging platform begin to communicate through the serial port electrode in the extension part of the drone and the serial port electrode in the accommodation space of the charging platform. When the communication between the drone and the charging platform is successful, it can be further determined that the two charging electrodes in the charging device of the drone and the two charging electrodes of the charging platform have been effectively connected. At this time, the drone has completed a smooth landing.
[0109] It can be seen from this that, on the one hand, the embodiment of the present application performs a special electrode distribution on the charging electrodes, contact electrodes and serial port electrodes, which can ensure that when the drone successfully communicates with the charging platform, the charging electrodes are fitted together to better detect whether the drone is parked. At the same time, this electrode distribution can prevent short circuits between electrodes. On the other hand, the embodiment of the present application performs a special size design on the size of the metal contact points that constitute the charging electrodes, contact electrodes and serial port electrodes, which can better enable effective fitting between the electrodes. On the other hand, the embodiment of the present application performs a special electrode classification on the charging electrodes, contact electrodes and serial port electrodes, which can quickly enable the charging platform and the drone to recognize each other.
[0110] Figure 7 It is a flowchart of a charging method provided in one embodiment of the present application. Figure 7 The charging method is performed by the control system of the charging system, charging device or charging platform as described in the above embodiments, or a third-party control system independent of the charging system, charging device and charging platform, such as Figure 7 As shown, the charging method includes the following contents.
[0111] S710: Receive signals from between the drone and the charging platform through signal electrodes on the drone and the charging platform.
[0112] In one embodiment, when the signal electrodes of the drone are connected to corresponding signal electrodes on the charging platform to form a loop, the control system can receive signals between the drone and the charging platform.
[0113] In one embodiment, the signal includes a level signal and / or a communication signal, which is not specifically limited in this embodiment of the present application. Through the transmission of the signal, it can be determined whether the charging electrode of the drone is effectively connected to the charging electrode of the charging platform.
[0114] In one embodiment, the signal electrodes and charging electrodes of the drone may also be provided in the charging device described in the above embodiment, and the charging device is provided independently of the drone.
[0115] S720: Determine, based on the signal, that the charging electrode of the drone is effectively connected to the charging electrode of the charging platform.
[0116] In one embodiment, when the control system detects the signal, it indicates that the charging electrode of the drone is effectively connected to the charging electrode of the charging platform, thereby determining that the drone has landed smoothly.
[0117] However, it should be noted that the embodiments of the present application do not specifically limit how to determine whether the charging electrode of the drone is effectively connected to the charging electrode of the charging platform based on the signal. For example, the effective connection between the charging electrode of the drone and the charging electrode of the charging platform is determined based on the number of transmitted signals, or the effective connection between the charging electrode of the drone and the charging platform is determined based on the type of transmitted signals.
[0118] S730: When it is determined that the charging electrode of the drone is effectively connected to the charging electrode of the charging platform, the drone is charged via the charging platform.
[0119] From this, we can see that when a drone lands on a charging platform for charging, the signal electrode can detect whether the charging electrode on the drone is in stable contact with the charging electrode on the charging platform, so as to determine whether the drone is parked properly, thereby achieving charging safety.
[0120] In another embodiment of the present application, the receiving of signals between the drone and the charging platform through signal electrodes on the drone and the charging platform includes: receiving level signals between the drone and the charging platform through at least one first contact electrode on the drone and at least one second contact electrode on the charging platform.
[0121] When the signal electrodes of the drone and the charging platform are contact electrodes, when the first contact electrode of the drone and the second contact electrode of the charging platform are connected to form a loop, a level signal can be provided to the control system.
[0122] In one embodiment, when the number of at least one first contact electrode and at least one second contact electrode is multiple, one contact electrode corresponds to one level signal. Therefore, in order to ensure that more than a preset number of first contact electrodes on the drone have completed contact with the second contact electrodes on the charging platform, that is, to ensure that the charging electrodes on the drone are effectively connected to the charging electrodes on the charging platform, the number of level signals received can be determined.
[0123] In one embodiment, when the number of level signals is greater than or equal to a preset number, that is, more than the preset number of first contact electrodes on the drone have completed contact with the second contact electrodes on the charging platform, it can be determined that the charging electrodes on the drone and the charging electrodes on the charging platform are effectively connected.
[0124] However, it should be noted that the embodiment of the present application does not specifically limit the specific value of the preset number. For example, the preset number is equal to the number of contact electrodes.
[0125] In another embodiment of the present application, the receiving of signals between the drone and the charging platform through signal electrodes on the drone and the charging platform includes: receiving communication signals between the drone and the charging platform through at least one first serial port electrode on the drone and at least one second serial port electrode on the charging platform.
[0126] When the signal electrodes in the drone and the charging platform are serial port electrodes, when the first serial port electrode of the drone and the second serial port electrode of the charging platform are connected to form a loop, a communication signal can be provided to the control system.
[0127] In one embodiment, when at least one first serial port electrode and at least one second serial port electrode are connected, communication between the drone and the charging platform can be achieved using the communication signal emitted by the serial port electrodes. When the continuous communication time meets a preset threshold, that is, when the communication between the drone and the charging platform is successful, it can be determined that the charging electrode on the drone and the charging electrode on the charging platform are effectively connected.
[0128] In one embodiment, when the continuous communication time meets a preset threshold, that is, the drone and the charging platform can communicate successfully within the preset threshold time period (which can also be called a normal handshake signal), then the first serial port electrode on the drone and the second serial port electrode on the charging platform have completed contact within the preset threshold time period, and it can be determined that the charging electrode on the drone and the charging electrode on the charging platform are effectively connected.
[0129] However, it should be noted that the embodiment of the present application does not specifically limit the specific value of the preset threshold.
[0130] In another embodiment of the present application, the receiving of signals between the drone and the charging platform through the signal electrodes on the drone and the charging platform includes: receiving the level signal between the drone and the charging platform through at least one first contact electrode on the drone and at least one second contact electrode on the charging platform; receiving the communication signal between the drone and the charging platform through at least one first serial port electrode on the drone and at least one second serial port electrode on the charging platform.
[0131] When the signal electrodes in the drone and the charging platform are contact electrodes and signal electrodes, when the first contact electrode of the drone is connected to the second contact electrode of the charging platform to form a loop, a level signal can be provided to the control system. At the same time, when the first serial port electrode of the drone is connected to the second serial port electrode of the charging platform to form a loop, a communication signal can be provided to the control system.
[0132] In another embodiment of the present application, determining that the charging electrode of the drone is effectively connected to the charging electrode of the charging platform based on the signal includes: determining the number of the level signals; when the number of the level signals is greater than or equal to a preset number, preliminarily determining that the charging electrode of the drone is effectively connected to the charging electrode of the charging platform; realizing communication between the drone and the charging platform through the communication signal; when the time of continuous communication meets a preset threshold, further determining that the charging electrode of the drone is effectively connected to the charging electrode of the charging platform, and charging the drone through the charging platform.
[0133] Through the level signal, it can be preliminarily determined that the charging electrode on the drone and the charging electrode on the charging platform are effectively connected at a certain moment, but it cannot be determined whether the charging electrode on the drone and the charging electrode on the charging platform can maintain an effective connection within a certain period of time. Therefore, through the communication signal, it is further determined whether the charging electrode on the drone and the charging electrode on the charging platform are effectively connected within a certain period of time, so as to more accurately determine whether the drone has landed smoothly.
[0134] Figure 8 FIG. 8 is a block diagram of a charging device provided in one embodiment of the present application. The charging device 800 includes:
[0135] The receiving module 810 is configured to receive signals between the drone and the charging platform through signal electrodes on the drone and the charging platform;
[0136] a determination module 820 configured to determine, based on the signal, whether the charging electrode of the drone is effectively connected to the charging electrode of the charging platform;
[0137] The charging module 830 is configured to charge the drone through the charging platform when it is determined that the charging electrode of the drone is effectively connected to the charging electrode of the charging platform.
[0138] From this, we can see that when a drone lands on a charging platform for charging, the signal electrodes are used to interact with the drone and the charging platform, and it is possible to detect whether the drone is parked properly, thereby determining whether the electrodes on the drone are in stable contact with the electrodes on the charging platform, thereby achieving charging safety.
[0139] Below, reference Figure 9 To describe the charging device according to an embodiment of the present application. Figure 9 The figure shows a block diagram of a charging device according to an embodiment of the present application.
[0140] like Figure 9 As shown, the charging device 900 includes one or more processors 910 and a memory 920 .
[0141] The processor 910 may be a central processing unit (CPU) or other forms of processing units having data processing capabilities and / or instruction execution capabilities, and may control other components in the charging device 900 to perform desired functions.
[0142] The memory 920 may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and / or cache memory. The non-volatile memory may include, for example, read-only memory (ROM), a hard disk, flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium, and the processor 910 may execute the program instructions to implement the charging method of each embodiment of the present application described above and / or other desired functions.
[0143] In one example, the charging device 900 may further include an input device 930 and an output device 940 , and these components are interconnected via a bus system and / or other forms of connection mechanisms (not shown).
[0144] For example, the input device 930 may be the aforementioned microphone or microphone array, for capturing input signals from a sound source. When the charging device is a stand-alone device, the input device 930 may be a communication network connector.
[0145] In addition, the input device 930 may also include, for example, a keyboard, a mouse, and the like.
[0146] The output device 940 can output various information to the outside, including level signals and / or communication signals, etc. The output device 940 can include, for example, a display, a speaker, a printer, a communication network and its connected remote output device, etc.
[0147] Of course, to simplify, Figure 9 Only some of the components of the charging device 900 related to the present application are shown, and components such as a bus, an input / output interface, etc. are omitted. In addition, the charging device 900 may further include any other appropriate components according to specific application conditions.
[0148] In addition to the above-mentioned methods and devices, an embodiment of the present application may also be a computer program product, which includes computer program instructions, which, when executed by a processor, enable the processor to perform the steps in the charging method according to the various embodiments of the present application.
[0149] The computer program product may be written in any combination of one or more programming languages to implement the program code for performing the operations of the embodiments of the present application, including object-oriented programming languages such as Java, C++, and conventional procedural programming languages such as "C" or similar programming languages. The program code may be executed entirely on the user's computing device, partially on the user's computing device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server.
[0150] In addition, an embodiment of the present application may also be a computer-readable storage medium having computer program instructions stored thereon. When the computer program instructions are executed by a processor, the processor executes the steps in the charging method according to the various embodiments described above.
[0151] The computer-readable storage medium can adopt any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium can, for example, include but is not limited to a system, device or component of electricity, magnetism, light, electromagnetic, infrared, or semiconductor, or any combination thereof. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.
[0152] The above description has been provided for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.
Claims
1. A charging system for a drone, characterized in that: include: A charging device, comprising a bracket and a first charging electrode, a second charging electrode, and at least one first signal electrode disposed on the bracket, wherein the bracket is used to connect the charging device to the fuselage of the UAV; A charging platform, comprising a third charging electrode, a fourth charging electrode, and at least one second signal electrode, wherein the third charging electrode and the fourth charging electrode are respectively connected to the first charging electrode and the second charging electrode when the drone is docked on the charging platform to charge the drone, and the at least one second signal electrode is respectively connected to the at least one first signal electrode when the drone is docked on the charging platform to determine whether the first charging electrode and the second charging electrode are effectively connected to the third charging electrode and the fourth charging electrode, respectively; The at least one first signal electrode includes at least one first serial port electrode, the at least one second signal electrode includes at least one second serial port electrode, the first serial port electrode and the second serial port electrode are used to provide a communication signal, and when the continuous communication time of the communication signal meets a preset threshold, it is determined that the first charging electrode and the second charging electrode are effectively connected to the third charging electrode and the fourth charging electrode respectively, and the bracket includes: a first extension portion, configured to carry the first charging electrode; a second extending portion, configured to carry the second charging electrode; at least one third extending portion, configured to carry the at least one first signal electrode; The at least one third extension portion includes: two third extension portions, the two third extension portions are arranged in an array with the first extension portion and the second extension portion, and the two third extension portions are arranged diagonally, and the first extension portion and the second extension portion are arranged diagonally; The at least one first signal electrode includes: four first signal electrodes, wherein the arrangement direction of the two first signal electrodes of one of the two third extension portions is perpendicular to the arrangement direction of the two first signal electrodes of the other of the two third extension portions; The first charging electrode, the second charging electrode, the at least one first signal electrode, the third charging electrode, the fourth charging electrode, and the at least one second signal electrode are in the form of a ring, a quarter ring, or a ring smaller than a quarter ring.
2. The charging system according to claim 1, wherein: The charging platform is provided with a first accommodating space corresponding to the first extension portion and a second accommodating space corresponding to the second extension portion, wherein the third charging electrode is provided on the inner wall of the first accommodating space, and the fourth charging electrode is provided on the inner wall of the second accommodating space.
3. The charging system according to claim 1, wherein: The at least one first signal electrode is disposed on the first extension portion and / or the second extension portion, and is spaced apart from the first charging electrode or the second charging electrode.
4. The charging system according to any one of claims 1 to 3, characterized in that: The at least one first signal electrode includes at least one first contact electrode for providing a level signal; The at least one second signal electrode includes at least one second contact electrode for providing a level signal.
5. The charging system according to any one of claims 1 to 3, characterized in that: The bracket includes an extension portion for supporting the first charging electrode, the second charging electrode and the at least one first signal electrode, and the shape of the extension portion is conical, cylindrical or funnel-shaped. The charging platform is provided with a accommodating space for accommodating the extension portion, and the shape of the accommodating space is conical, cylindrical or funnel-shaped.
6. The charging system according to any one of claims 1 to 3, wherein the support comprises at least one tripod of the drone.
7. A charging platform for a drone, characterized in that: include: a third charging electrode and a fourth charging electrode, configured to respectively connect to the first charging electrode and the second charging electrode of the charging device of the drone when the drone is docked on the charging platform, so as to charge the drone; at least one second signal electrode, configured to connect to at least one first signal electrode of the charging device when the drone is docked on the charging platform, so as to determine whether the first charging electrode and the second charging electrode are effectively connected to the third charging electrode and the fourth charging electrode, respectively; The at least one first signal electrode includes at least one first serial port electrode, the at least one second signal electrode includes at least one second serial port electrode, the first serial port electrode and the second serial port electrode are used to provide a communication signal, and when the continuous communication time of the communication signal meets a preset threshold, it is determined that the first charging electrode and the second charging electrode are effectively connected to the third charging electrode and the fourth charging electrode respectively; the charging platform includes: A first accommodating space, used for carrying the third charging electrode; A second accommodating space, used for carrying the fourth charging electrode; at least one third accommodating space, for carrying the at least one second signal electrode; The at least one third accommodation space includes: two third accommodation spaces, the two third accommodation spaces are arranged in an array with the first accommodation space and the second accommodation space, and the two third accommodation spaces are arranged diagonally, and the first accommodation space and the second accommodation space are arranged diagonally; The at least one second signal electrode includes: four second signal electrodes, wherein the arrangement direction of the two second signal electrodes in one of the two third accommodating spaces is perpendicular to the arrangement direction of the two second signal electrodes in the other of the two third accommodating spaces; The third charging electrode, the fourth charging electrode, and the at least one second signal electrode are in the form of a ring, a quarter of a ring, or a ring smaller than a quarter of a ring.
8. A charging device for a drone, characterized in that: include: a bracket for connecting the charging device to the fuselage of the drone; a first charging electrode, a second charging electrode, and at least one first signal electrode provided on the bracket, wherein the first charging electrode and the second charging electrode are used to respectively connect to a third charging electrode and a fourth charging electrode of the charging platform when the drone is docked on the charging platform to charge the drone; The at least one first signal electrode is used to connect to at least one second signal electrode of the charging platform when the drone is docked on the charging platform, and is used to determine whether the first charging electrode and the second charging electrode are effectively connected to the third charging electrode and the fourth charging electrode respectively; The at least one first signal electrode includes at least one first serial port electrode, and the at least one second signal electrode includes at least one second serial port electrode. The first serial port electrode and the second serial port electrode are used to provide a communication signal, and when the continuous communication time of the communication signal meets a preset threshold, it is determined that the first charging electrode and the second charging electrode are effectively connected to the third charging electrode and the fourth charging electrode respectively. The bracket includes: a first extension portion, configured to carry the first charging electrode; a second extending portion, configured to carry the second charging electrode; at least one third extending portion, configured to carry the at least one first signal electrode; The at least one third extension portion includes: two third extension portions, the two third extension portions are arranged in an array with the first extension portion and the second extension portion, and the two third extension portions are arranged diagonally, and the first extension portion and the second extension portion are arranged diagonally; The at least one first signal electrode includes: four first signal electrodes, wherein the arrangement direction of the two first signal electrodes of one of the two third extension portions is perpendicular to the arrangement direction of the two first signal electrodes of the other of the two third extension portions; The first charging electrode, the second charging electrode, and the at least one first signal electrode are in the form of a ring, a quarter of a ring, or a ring smaller than a quarter of a ring.
9. A drone, characterized in that: include: body; The charging device according to claim 8, connected to the body via the bracket.
10. The drone according to claim 9, characterized in that: The bracket is at least one tripod of the drone.
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