A power supply system for a tethered unmanned aerial vehicle

Abstract

The application discloses a tethered unmanned aerial vehicle power supply system, a power supply and a backup power supply, which are used for supplying power to the tethered unmanned aerial vehicle; a transmission circuit is used for transmitting the current output by the power supply or the backup power supply; a detection module is used for detecting the current of the transmission circuit to obtain a current state signal; if it is determined that the current state signal indicates that the current is abnormal, the current of the backup power supply is transmitted to the tethered unmanned aerial vehicle through a voltage boosting module; and if it is determined that the current state signal indicates that the current is normal, the current of the power supply is transmitted to the tethered unmanned aerial vehicle. According to the embodiment of the application, when it is determined that the current state signal indicates that the current is abnormal, the current of the backup power supply is transmitted to the tethered unmanned aerial vehicle through the voltage boosting module, so that the tethered unmanned aerial vehicle can maintain subsequent flight operation, the stability of the tethered unmanned aerial vehicle is ensured, and the practicality of the tethered unmanned aerial vehicle is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of unmanned aerial vehicles, belongs to the technical field of power supply of unmanned aerial vehicles, and specifically relates to a power supply system of a tethered unmanned aerial vehicle. BACKGROUND

[0002] A tethered unmanned aerial vehicle is an unmanned aerial vehicle connected to a ground power supply through a cable. The tethered unmanned aerial vehicle can obtain power from the ground through the cable, can realize long-time flight, is not limited by battery capacity, and therefore can be widely applied to work requiring long-time monitoring, such as border training, security of large-scale activities and the like. Generally, the power supply system of the tethered unmanned aerial vehicle is divided into a main power supply and a backup power supply. When the main power supply fails, the power supply system automatically switches to the backup power supply. Once the main power supply recovers to normal, the power supply system automatically switches back to the main power supply. Since many loads of the tethered unmanned aerial vehicle need uninterrupted power supply, uninterrupted or extremely short interruption time of the power supply must be ensured during power supply switching. SUMMARY

[0003] In view of at least one of the above technical problems, the present application aims to provide a power supply system of a tethered unmanned aerial vehicle.

[0004] In one aspect, the present application provides a power supply system of a tethered unmanned aerial vehicle, comprising:

[0005] a power supply and a backup power supply, used for supplying power to the tethered unmanned aerial vehicle;

[0006] a transmission circuit, used for transmitting current output by the power supply or the backup power supply;

[0007] a detection module, used for detecting current of the transmission circuit to obtain a current state signal. If it is determined that the current state signal indicates that the current is abnormal, the current of the backup power supply is transmitted to the tethered unmanned aerial vehicle through a boost module. If it is determined that the current state signal indicates that the current is normal, the current of the power supply is transmitted to the tethered unmanned aerial vehicle.

[0008] Further, the transmission circuit comprises a bidirectional optocoupler unit.

[0009] The bidirectional optocoupler unit is used for current isolation of a high-voltage output end of the transmission circuit.

[0010] Further, the detection module comprises a signal detection unit.

[0011] The signal detection unit is used for current detection of the high-voltage output end of the transmission circuit to obtain the current state signal.

[0012] Further, the detection module is further configured to detect a voltage of the tethered unmanned aerial vehicle to obtain voltage data, and transmit the current of the backup power supply to the tethered unmanned aerial vehicle through the voltage boosting module if it is determined that the voltage data is lower than a preset voltage threshold.

[0013] Further, the detection module further comprises a current acquisition unit, a feature extraction unit and a signal processing unit.

[0014] The current acquisition unit is configured to acquire a current signal.

[0015] The feature extraction unit is configured to extract features of the current signal through a microprocessor to obtain current extraction features.

[0016] The signal processing unit is configured to analyze the current extraction features through the microprocessor to obtain the current state signal.

[0017] Further, the detection module further comprises an energy-saving unit.

[0018] The energy-saving unit is configured to control the tethered unmanned aerial vehicle to enter an energy-saving mode and transmit the current of the backup power supply to the tethered unmanned aerial vehicle through the voltage boosting module if it is determined that the current state signal indicates that the current is abnormal.

[0019] Further, the energy-saving unit is further configured to detect power consumption of each energy-consuming hardware to obtain power consumption data corresponding to each energy-consuming hardware, and control the energy-consuming hardware to be turned off if it is determined that the power consumption data corresponding to the energy-consuming hardware is greater than a preset power consumption threshold.

[0020] Further, the power supply system of the tethered unmanned aerial vehicle further comprises:

[0021] The energy storage acquisition module is configured to acquire energy storage information corresponding to the backup power supply.

[0022] The warning module is configured to generate a warning signal and send the warning signal to a central control platform if it is determined that the energy storage information corresponding to the backup power supply is lower than a preset energy storage threshold.

[0023] Further, the power supply system of the tethered unmanned aerial vehicle comprises a running acquisition module and a voltage determination module.

[0024] The running acquisition module is configured to acquire running data corresponding to a current time period of the tethered unmanned aerial vehicle.

[0025] The voltage determination module is configured to determine voltage data corresponding to the current transmitted by the transmission circuit according to the running data.

[0026] Further, the voltage determination module is further configured to predict voltage data corresponding to the operation data of the next time period by using the voltage calculation model trained by the historical operation data set.

[0027] The transmission circuit is further configured to transmit the current corresponding to the voltage data output by the power supply in the next time period.

[0028] Compared with the related art, the embodiments of the present application have the following beneficial effects:

[0029] The embodiments of the present application provide a power supply system of a tethered unmanned aerial vehicle, a power supply and a backup power supply, which are used to supply power to the tethered unmanned aerial vehicle; a transmission circuit, which is used to transmit the current output by the power supply or the backup power supply; and a detection module, which is used to detect the current of the transmission circuit to obtain a current state signal. If it is determined that the current state signal indicates that the current is abnormal, the current of the backup power supply is transmitted to the tethered unmanned aerial vehicle through a boost module. If it is determined that the current state signal indicates that the current is normal, the current of the power supply is transmitted to the tethered unmanned aerial vehicle. By implementing the embodiments of the present application, the power supply system of the tethered unmanned aerial vehicle can transmit the current of the backup power supply to the tethered unmanned aerial vehicle through the boost module when it is determined that the current state signal indicates that the current is abnormal, so as to maintain the tethered unmanned aerial vehicle to perform subsequent flight operations. Moreover, when it is determined that the current state signal indicates that the current is normal, the current of the power supply is transmitted to the tethered unmanned aerial vehicle, so as to ensure that the tethered unmanned aerial vehicle can be connected to the stable power supply again, and the stability of the power supply can be ensured without setting an on-board backup power supply in the tethered unmanned aerial vehicle, thereby improving the practicability of the tethered unmanned aerial vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 FIG. 1 is a structural schematic diagram of the power supply system of the tethered unmanned aerial vehicle disclosed in the embodiments of the present application;

[0031] Figure 2 FIG. 2 is a structural schematic diagram in which the power supply and the backup power supply are connected to the tethered unmanned aerial vehicle in an embodiment;

[0032] Figure 3 FIG. 3 is a functional block diagram of the switching of the power supply and the backup power supply in an embodiment;

[0033] Figure 4 FIG. 4 is a flowchart of obtaining the current state signal in the embodiments of the present application;

[0034] Figure 5 FIG. 5 is a functional block diagram of the ground end in an embodiment;

[0035] Figure 6 FIG. 6 is a structural schematic diagram of an electronic device disclosed in the embodiments of the present application. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0037] It should be noted that the terms "comprising" and "having" and any variations thereof in the embodiments of the present application and the drawings are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally further include steps or units not listed or can optionally further include other steps or units inherent to the process, method, product or device.

[0038] At present, most of the tethered unmanned aerial vehicles use power supply to supply power for the tethered unmanned aerial vehicle for a long time. The power supply can be directly connected with the power grid to preliminarily ensure the stability of the power supply for the tethered unmanned aerial vehicle. At the same time, an on-board backup power supply is also provided as power guarantee after the power supply of the tethered unmanned aerial vehicle is cut off. However, this scheme has the following shortcomings. First, the on-board backup power supply will occupy the space of the tethered unmanned aerial vehicle, and increase the complexity of the tethered unmanned aerial vehicle when setting the circuit board. Second, the on-board backup power supply will occupy the overall weight of the tethered unmanned aerial vehicle, and increase the working power of the tethered unmanned aerial vehicle during normal work, thereby increasing the power consumption of the tethered unmanned aerial vehicle. Third, the on-board backup battery also needs to increase an additional charging device, thereby increasing the manufacturing cost of the tethered unmanned aerial vehicle and reducing the portability of the tethered unmanned aerial vehicle.

[0039] The power supply system of the tethered unmanned aerial vehicle disclosed in the embodiments of the present application ensures the stability of the tethered unmanned aerial vehicle while improving the practicability of the tethered unmanned aerial vehicle. The following will be described in detail.

[0040] Figure 1 A structural schematic diagram of the power supply system of the tethered unmanned aerial vehicle disclosed in the embodiments of the present application is shown in FIG. 1. As shown in FIG. 1, the power supply system of the tethered unmanned aerial vehicle can include a power supply, a backup power supply, a transmission circuit and a detection module. Figure 1

[0041] ​In one embodiment, the power supply and the backup power supply can be used to supply power to the tethered UAV, wherein the power supply can be a long-term stable power source, for example, the power supply can be a commercial power grid. The backup power supply can be a power source that stores a certain amount of power, specifically, the backup power supply can be a 48V backup battery. The backup power supply can also be connected to the power supply, and when the power supply system of the tethered UAV detects that the power of the backup power supply is lower than a preset power threshold, the backup power supply can be charged by the power supply to ensure that the power of the backup power supply is sufficient.

[0042] Optionally, the transmission circuit can be used to transmit the current output by the power supply or the backup power supply, and when the power supply fails, the current output by the backup power supply can be transmitted to maintain the normal operation of the tethered UAV.

[0043] As an optional implementation, the detection module can be used to detect the current of the transmission circuit to obtain a current state signal, and if it is determined that the current state signal indicates that the current is abnormal, the current of the backup power supply is transmitted to the tethered UAV through the boost module, and if it is determined that the current state signal indicates that the current is normal, the current of the power supply is transmitted to the tethered UAV. Wherein, the current state signal can be a signal for indicating the state of the current in the transmission circuit, and the current state signal can have two types, which are normal signal and abnormal signal, wherein the normal signal can be used to indicate that the current in the power supply system of the tethered UAV is normal, and the abnormal signal can be used to indicate that the current in the power supply system of the tethered UAV is abnormal. Optionally, the boost module is connected to the circuit between the backup power supply and the tethered UAV, and can also be arranged on the circuit for transmitting the power output by the backup power supply, so as to boost the current output by the backup power supply before transmitting it to the tethered UAV.

[0044] In some embodiments, the transmission circuit further comprises a bidirectional optical coupling unit, which can be used to isolate the high-voltage output end of the transmission circuit. Specifically, the bidirectional optical coupling unit can be used to isolate the circuit for transmitting the power output by the backup power supply and the circuit for transmitting the power output by the power supply, so that the detection module can accurately detect the circuit for transmitting the power output by the backup power supply or the circuit for transmitting the power output by the power supply. Optionally, the bidirectional optical coupling unit can be composed of one or more optical couplers for isolating the circuit that needs to be isolated.

[0045] Furthermore, the detection module also includes a signal detection unit, which can be used to detect current at the high-voltage output end of the transmission circuit to obtain a current status signal. The transmission circuit may also be equipped with electronic components required for voltage boosting, thereby boosting the current in the transmission circuit to obtain the high-voltage output end of the transmission circuit. The high-voltage output end of the transmission circuit can be directly connected to a tethered drone to transmit high-voltage current to the tethered drone. For example, if the tethered drone is powered by a 220V power supply, the transmission circuit can boost the current from the 220V power supply to 400V and then output it to the tethered drone. If the tethered drone is powered by a 48V backup power supply, the current can be boosted to 400V by a boost module connected to the backup power supply and then output to the transmission circuit, allowing the transmission circuit to transmit the current to the tethered drone, thereby providing the tethered drone with high-voltage and stable current. The signal detection unit may include a microprocessor and a current sensor, wherein the microprocessor is connected to the current sensor, the microprocessor can control the current sensor to collect current information to monitor the current, and the processor then collects and processes the current information collected by the current sensor to obtain a current status signal.

[0046] Figure 2 FIG. 1 is a schematic diagram of a structure in which a power supply and a backup power supply are connected to a tethered drone in one embodiment. Figure 2 As shown, the power supply can be 220V mains electricity. The leakage protection / AC power detection module detects leakage current on the power supply output, preventing leakage and improving the safety of the tethered drone's power supply system. After passing through the leakage protection / AC power detection module, the output current of the power supply can be boosted to convert the 220V current to 400V, which is then transmitted to the tethered drone, providing the required voltage for operation. The power supply current transmission circuit can include a hardware light-off circuit. This circuit uses the AC state collected by the leakage protection module to control the tethered drone's load shutdown in the event of an abnormality. The backup power supply can be a 48V backup battery. This backup power supply can boost the 48V output voltage of the backup power supply to 400V via the boost module, and then transmit the boosted 400V current to the tethered drone, maintaining normal operation.

[0047] As an optional embodiment, the power supply system of the tethered drone includes a backup power supply and a power supply, wherein the current output by the backup power supply and the power supply can reach the tethered drone through two different lines, that is, the tethered drone can be powered by dual lines. Figure 3A functional block diagram for switching between a power supply and a backup power supply in one embodiment. As shown Figure 3 The power supply system of the tethered UAV includes an AC-DC power supply module, a DC-DC backup power supply module, a dual-path switching circuit, a power carrier module, a high-voltage discharge circuit, and a hardware light-off control circuit. The power supply can be an AC-DC power supply module, which is a main-path output AC-DC power supply module, to provide the required power supply power for the tethered UAV. The backup power supply can be a DC-DC backup power supply module, which is a backup-path output DC-DC boost power supply module, to maintain the backup power supply for the flight function of the tethered UAV. The dual-path switching circuit is to connect the two output ends in parallel through a high-power anti-reverse connection diode to achieve seamless switching and prevent the output voltage from being affected by the power supply module, such as a single module failure that reduces the output voltage and causes the UAV to fail to work normally. The power carrier module can use the power carrier communication function to communicate with the tethered UAV. The high-voltage discharge circuit can be opened to quickly discharge the high voltage when the high-voltage output is closed, to prevent accidental electric shock when the staff uses it. The hardware light-off control circuit can collect the AC state through the leakage protection module and control the UAV load to be turned off in abnormal conditions.

[0048] In some embodiments, the detection module can also be used to detect the voltage of the tethered UAV to obtain voltage data, and if it is determined that the voltage data is lower than a preset voltage threshold, the current of the backup power supply is transmitted to the tethered UAV through the boost module. The voltage data can be used to describe the voltage condition in the transmission circuit. If it is determined that the voltage data is lower than the preset voltage threshold, it can indicate that the current output by the power supply is abnormal, for example, the current output by the power supply is too small, or it indicates that the current output by the power supply is abnormal in the boost process and cannot reach the voltage required for the tethered UAV to work, so the current of the backup power supply can be transmitted to the tethered UAV through the boost module to ensure the normal work of the tethered UAV. If it is determined that the voltage data is greater than or equal to the preset voltage threshold, it indicates that the current output by the power supply can meet the normal work of the tethered UAV, and the power supply can continue to supply power to the tethered UAV.

[0049] In the embodiment of the present application, the power supply system of the tethered unmanned aerial vehicle can include a power supply and a backup power supply, a transmission circuit, and a detection module. The power supply and the backup power supply are used to supply power to the tethered unmanned aerial vehicle. The transmission circuit is used to transmit the current output by the power supply or the backup power supply. The detection module is used to detect the current of the transmission circuit to obtain a current state signal. If it is determined that the current state signal indicates that the current is abnormal, the current of the backup power supply is transmitted to the tethered unmanned aerial vehicle through a boost module. If it is determined that the current state signal indicates that the current is normal, the current of the power supply is transmitted to the tethered unmanned aerial vehicle. The power supply system of the tethered unmanned aerial vehicle can transmit the current of the backup power supply to the tethered unmanned aerial vehicle through the boost module when it is determined that the current state signal indicates that the current is abnormal, so as to maintain the subsequent flight operation of the tethered unmanned aerial vehicle. Moreover, when it is determined that the current state signal indicates that the current is normal, the current of the power supply is transmitted to the tethered unmanned aerial vehicle, so as to ensure that the tethered unmanned aerial vehicle can be connected to the stable power supply again, without the need to set an on-board backup power supply in the tethered unmanned aerial vehicle to ensure stable power supply. In this way, the stability of the tethered unmanned aerial vehicle is ensured, and the practicality of the tethered unmanned aerial vehicle is improved.

[0050] Figure 4 FIG. 1 is a flowchart of a process of obtaining a current state signal in the embodiment of the present application. As shown in FIG. 1, the step of obtaining the current state signal further includes the following steps. Figure 4

[0051] In step S401, a current signal is obtained.

[0052] In some embodiments, the current signal can be used to reflect the current condition in a time period. The power supply system of the tethered unmanned aerial vehicle can further be provided with a current sensor and a microprocessor. The microprocessor can control the current sensor to obtain the current signal. Specifically, the microprocessor can control the current sensor to collect the current condition in a preset time length, so as to obtain the current signal. For example, the microprocessor can control the sensor to collect the current condition in 0.01 seconds to obtain the current signal. The current sensor can be arranged in the power supply system of the tethered unmanned aerial vehicle close to the microprocessor, or can be arranged at a position where the current signal needs to be collected, which is not limited herein. The real-time collection of the current condition by the current sensor enables the microprocessor to quickly obtain the current signal, thereby providing a technical basis for the microprocessor to quickly process the current signal.

[0053] In step S402, the microprocessor extracts features of the current signal to obtain current extraction features.

[0054] ​In some embodiments, the power supply system of the tethered UAV can perform time domain feature extraction processing, frequency domain feature extraction processing or time-frequency domain feature extraction processing on the collected current signal through the microprocessor to obtain current extraction features. Specifically, the time domain feature extraction processing can be to analyze the features of the current signal in time. Commonly used time domain features include maximum value, minimum value, mean value, standard deviation, root mean square value, skewness, kurtosis, etc. The frequency domain feature extraction processing can be to convert the time domain signal into a frequency domain signal through Fourier transform and then extract the frequency domain features. Commonly used frequency domain features include center of gravity frequency, average frequency, frequency root mean square, frequency variance, etc. The time-frequency domain feature extraction processing is a comprehensive analysis combining time domain and frequency domain features. Commonly used methods include wavelet packet analysis and EMD signal analysis, etc. Through the microprocessor, the current signal is subjected to feature extraction to obtain current extraction features, which can effectively perform current signal classification, fault diagnosis and other tasks, thereby improving the accuracy of processing the current signal.

[0055] In step S403, the microprocessor is used to analyze the current extraction features to obtain a current state signal.

[0056] In some embodiments, the analysis of the current extraction features by the microprocessor can be to classify the current extraction features to obtain a current state signal indicating normal or abnormal current in the power supply system of the tethered UAV. Specifically, the current extraction features can be classified by a pre-set classifier in the microprocessor to obtain a classification result, and the current state signal can be determined according to the classification result. The classifier can be a support vector machine, etc., and is not specifically limited.

[0057] As an optional implementation, the detection module further includes an energy saving unit. If it is determined that the current state signal indicates abnormal current, the energy saving unit can be used to control the tethered UAV to enter an energy saving mode and transmit the current of the backup power supply to the tethered UAV through the boost module. The energy saving mode can be used to indicate that the tethered UAV closes some task processes to save power consumption. If it is determined that the current state signal indicates abnormal current, the power consumption of the tethered UAV needs to be reduced to prolong the flight time of the tethered UAV, thereby avoiding the tethered UAV from falling due to insufficient power.

[0058] Further, the energy-saving unit can also be used to detect the power consumption of each power-consuming hardware, and obtain the power consumption data corresponding to each power-consuming hardware; if it is determined that the power consumption data corresponding to the power-consuming hardware is greater than a preset power consumption threshold, the power-consuming hardware is controlled to be turned off. The tethered unmanned aerial vehicle can record the power consumption data corresponding to each power-consuming hardware in real time when working, and the energy-saving unit can query each power-consuming hardware to obtain the power consumption data corresponding to each power-consuming hardware. After determining the power-consuming hardware whose power consumption data is greater than the preset power consumption threshold, the power-consuming hardware with a lower importance degree can be selected to be turned off according to the importance degrees of each power-consuming hardware, or the power-consuming hardware with an importance degree less than a preset importance threshold can be turned off according to the importance degrees of each power-consuming hardware, and if the importance degree is greater than or equal to the preset importance threshold, the working state of the power-consuming hardware can be maintained. For example, it is assumed that the power-consuming hardware for maintaining flight is set to have an importance degree greater than the preset importance threshold, and the power-consuming hardware related to the light is set to have an importance degree less than the preset importance threshold, and if the tethered unmanned aerial vehicle is controlled to enter the energy-saving mode, the power-consuming hardware related to the light can be turned off, and the power-consuming hardware for maintaining flight can continue to maintain the working state. By setting the importance degrees of each power-consuming hardware, the power-consuming hardware with a high importance degree can be avoided to be turned off, thereby seriously affecting the working state of the tethered unmanned aerial vehicle.

[0059] The power supply system of the tethered unmanned aerial vehicle detects the power consumption of each power-consuming hardware to obtain the power consumption data corresponding to each power-consuming hardware; if it is determined that the power consumption data corresponding to the power-consuming hardware is greater than a preset power consumption threshold, the power-consuming hardware is controlled to be turned off, which can greatly save the power consumption of the tethered unmanned aerial vehicle when the power supply of the tethered unmanned aerial vehicle is abnormal, and can effectively avoid the problem that the tethered unmanned aerial vehicle rapidly falls due to the power supply abnormality.

[0060] In some embodiments, the power supply system of the tethered unmanned aerial vehicle further includes an energy storage acquisition module configured to acquire energy storage information corresponding to the backup power supply; and a warning module configured to generate a warning signal and send the warning signal to the central control platform if it is determined that the energy storage information corresponding to the backup power supply is lower than a preset energy storage threshold. The energy storage information corresponding to the backup power supply can indicate the energy storage condition of the backup power supply, and specifically can be used to indicate the power condition of the backup power supply. Optionally, the power supply system of the tethered unmanned aerial vehicle can further include a ground end control interface, and if it is determined that the energy storage information corresponding to the backup power supply is lower than the preset energy storage threshold, a warning signal is generated, the warning signal is displayed on the ground end control interface, and the warning signal is sent to the central control platform, so that the engineer maintaining the tethered unmanned aerial vehicle can quickly know the energy storage condition of the backup power supply. Figure 5 is a ground end functional block diagram in one embodiment. As Figure 5As shown, the ground terminal function can include a leakage protection module, a control panel, a mainboard and a key panel, and the connection of the leakage protection module, the control panel, the mainboard and the key panel with the circuit. Through the connection of the ground terminal function block diagram, the normal operation of each function can be ensured.

[0061] In some embodiments, the power supply system of the tethered unmanned aerial vehicle includes a running acquisition module and a voltage determination module; the running acquisition module can be used to acquire running data corresponding to the current time period of the tethered unmanned aerial vehicle; the voltage determination module can be used to determine voltage data corresponding to the current transmitted by the transmission circuit according to the running data. The running data can be used to indicate the running condition of the current tethered unmanned aerial vehicle, for example, can include power consumption data, task execution amount, etc. The voltage determination module can store a corresponding relationship between the running data and the voltage data corresponding to the current transmitted by the transmission circuit, and the voltage determination module can directly determine the voltage data corresponding to the current transmitted by the transmission circuit according to the running data and the corresponding relationship. The power supply system of the tethered unmanned aerial vehicle can determine the voltage data corresponding to the current transmitted by the transmission circuit according to the running data, which can save the power consumption of the tethered unmanned aerial vehicle, thereby providing a technical basis for stable operation of the tethered unmanned aerial vehicle.

[0062] Further, the voltage determination module is further configured to predict voltage data corresponding to next time period running data through a voltage calculation model trained by a historical running data set; and the transmission circuit is further configured to transmit a current corresponding to the voltage data output by the power supply source in the next time period. The voltage calculation model can be trained according to the historical running data set, and the historical running data set includes a plurality of historical running data and target voltage data corresponding to each historical running data. The historical running data set is input into the voltage calculation model to be trained, and the voltage calculation model to be trained calculates the predicted voltage data corresponding to each historical running data according to each historical running data. The model parameters of the voltage calculation model to be trained are adjusted according to the error between the target voltage data corresponding to each historical running data and the predicted voltage data corresponding to each historical running data, until the error is less than a preset error threshold, and then the trained voltage calculation model is obtained. After the voltage calculation model trained by the historical running data set predicts the voltage data corresponding to the next time period running data, the power supply system of the tethered unmanned aerial vehicle can control the power supply source to output a current corresponding to the voltage data in the next time period, so that the transmission circuit transmits a current corresponding to the voltage data output by the power supply source, thereby improving the planning of power supply for the tethered unmanned aerial vehicle, thereby saving the power consumption of the tethered unmanned aerial vehicle.

[0063] In the embodiment of the present application, the current signal is acquired, the current signal is extracted by the microprocessor to obtain the current extraction feature, and the current extraction feature is analyzed by the microprocessor to obtain the current state signal, so that the accuracy of processing the current signal can be improved.

[0064] Please refer to Figure 6 , Figure 6 is a structural schematic diagram of an electronic device disclosed by the embodiment of the present application. As shown in the figure, Figure 6 The electronic device 600 can include:

[0065] a memory 601 in which executable program codes are stored;

[0066] a processor 602 coupled with the memory 601;

[0067] The processor 602 calls the executable program codes stored in the memory 601 to execute the power supply system of the tethered unmanned aerial vehicle disclosed by any embodiment of the present application.

[0068] The embodiment of the present application discloses a computer readable storage medium which stores a computer program, wherein the computer program is executed by the processor to make the processor realize the power supply system of the tethered unmanned aerial vehicle disclosed by any embodiment of the present application.

[0069] The embodiment of the present application discloses a computer program product which includes a computer program and the computer program can be executed by the processor to realize the method described in the above embodiments.

[0070] It should be understood that the "one embodiment" or "an embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. Those skilled in the art should also know that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required by the present application.

[0071] In various embodiments of the present application, it should be understood that the size of the serial number of the above processes does not mean the inevitable sequence of execution, and the execution sequence of the processes should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0072] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0073] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0074] The integrated unit, if realized in the form of a software functional unit and sold or used as an independent product, can be stored in a computer-readable memory. Based on this understanding, the technical solutions of the present application, essentially or the part that contributes to the prior art, or the whole or part of the technical solutions, can be embodied in the form of a software product. The computer software product is stored in a memory, and includes a number of steps for causing a computer device (which can be a personal computer, a server or a network device, etc., and specifically can be a processor in the computer device) to execute the above-mentioned methods of the embodiments of the present application.

[0075] Those skilled in the art can understand that all or part of the steps in the above-mentioned embodiments can be completed by programs instructing related hardware, and the programs can be stored in a computer-readable storage medium, including read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), one-time programmable read-only memory (OTPROM), electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, magnetic disk storage, magnetic tape storage, or any other computer-readable medium capable of carrying or storing data.

[0076] The power supply system of the tethered unmanned aerial vehicle disclosed in the embodiments of the present application is described in detail, and the principles and implementation manners of the present application are described by applying specific examples. The above embodiment description is only used to help understand the method of the present application and its core idea. Meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and application range will be changed, and the above description should not be understood as a limitation on the present application.

Claims

1. A power supply system for a tethered drone, characterized by, The system comprises: a power supply and a backup power supply for supplying power to the tethered unmanned aerial vehicle; a transmission circuit for transmitting the current output by the power supply or the backup power supply; a detection module for detecting the current of the transmission circuit to obtain a current state signal; if it is determined that the current state signal indicates that the current is abnormal, the current of the backup power supply is transmitted to the tethered unmanned aerial vehicle through a boost module; if it is determined that the current state signal indicates that the current is normal, the current of the power supply is transmitted to the tethered unmanned aerial vehicle; the transmission circuit comprises a bidirectional optocoupler unit; the bidirectional optocoupler unit is used for current isolation of a high-voltage output end of the transmission circuit; the detection module comprises a signal detection unit; the signal detection unit is used for current detection of the high-voltage output end of the transmission circuit to obtain a current state signal; the detection module is further used for detecting the voltage of the tethered unmanned aerial vehicle to obtain voltage data; if it is determined that the voltage data is lower than a preset voltage threshold, the current of the backup power supply is transmitted to the tethered unmanned aerial vehicle through the boost module; the detection module further comprises a current acquisition unit, a feature extraction unit and a signal processing unit; the current acquisition unit is used for acquiring a current signal; the feature extraction unit is used for feature extraction of the current signal through a microprocessor to obtain current extraction features; and the signal processing unit is used for analysis of the current extraction features through the microprocessor to obtain the current state signal; the power supply system of the tethered unmanned aerial vehicle comprises a running acquisition module and a voltage determination module; the running acquisition module is used for acquiring running data corresponding to a current time period of the tethered unmanned aerial vehicle; and the voltage determination module is used for determining voltage data corresponding to the current transmitted by the transmission circuit according to the running data; the voltage determination module is further used for predicting voltage data corresponding to next time period running data through a voltage calculation model trained by historical running data sets; and the transmission circuit is further used for transmitting the current corresponding to the voltage data output by the power supply in the next time period.

2. The power supply system of a tethered drone according to claim 1, characterized in that, The detection module further comprises an energy-saving unit; the energy-saving unit is used for controlling the tethered unmanned aerial vehicle to enter an energy-saving mode and transmitting the current of the backup power supply to the tethered unmanned aerial vehicle through the boost module if it is determined that the current state signal indicates that the current is abnormal.

3. The power supply system of a tethered drone according to claim 2, wherein, The energy-saving unit is further used for detecting the power consumption of each power-consuming hardware to obtain power consumption data corresponding to each power-consuming hardware; and if it is determined that the power consumption data corresponding to the power-consuming hardware is greater than a preset power consumption threshold, the power-consuming hardware is controlled to be turned off.

4. The tethered drone power supply system of claim 1, wherein, The power supply system of the tethered unmanned aerial vehicle further comprises: an energy storage acquisition module for acquiring energy storage information corresponding to the backup power supply; a warning module for generating a warning signal and sending the warning signal to a central control platform if it is determined that the energy storage information corresponding to the backup power supply is lower than a preset energy storage threshold.

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