Method for adjusting light brightness of UAV formation performance and LED drive circuit

Abstract

The present invention relates to the technical field of UAV formation performance, and particularly relates to a method for adjusting the brightness and darkness of lights in UAV formation performance and an LED driving circuit. By collecting the dance step state values of the UAV light board and determining whether the collected dance step state values are equal to the preset dance step state standard values, when the collected dance step state values are equal to the preset dance step state standard values, the current light board information of the UAV light board is collected, the collected light board information is used to obtain the current gear information of the UAV light board, and according to the stored third brightness information table, the dimming coefficient corresponding to the current gear information is calculated. Then, based on the current light board information and the dimming coefficient corresponding to the current gear information, a current dimming file for the UAV light board is generated. Finally, the lights are displayed according to the dimming file, and the UAV light board is dimmed or brightened according to the dimming coefficient, so that the current illumination brightness adapts to the performance requirements, thereby improving the UAV formation performance effect.

Description

Technical Field

[0001] The present invention relates to the technical field of UAV formation performance, and particularly relates to a method for adjusting the brightness and darkness of lights in UAV formation performance and an LED driving circuit. Background Art

[0002] At present, the combination of UAVs and light boards capable of displaying multiple colors provides a new way for UAV performances. Some manufacturers have begun to try using multiple UAVs carrying light boards for formation performances; however, when the existing UAV formations perform light shows, the adjustment of light brightness and darkness is not only very troublesome, but also the light display effect of UAV formation performances is relatively poor. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to provide a method for adjusting the brightness and darkness of lights in UAV formation performance and an LED driving circuit that can improve the performance effect of UAV formation performance.

[0004] To solve the above technical problem, the first technical solution adopted by the present invention is:

[0005] A method for adjusting the brightness and darkness of lights in UAV formation performance, comprising the following steps:

[0006] S1. Preset the number of gears of the UAV light board;

[0007] S2. Collect the first lumen value of the UAV light board under the rated state, divide the collected first lumen value evenly according to the number of gears of the UAV light board to obtain the second lumen value corresponding to each gear of the UAV light board, and store each gear of the UAV light board and the second lumen value corresponding to each gear as the first brightness information table;

[0008] S3. According to the first brightness information table, obtain the light board information corresponding to each second lumen value, and store each second lumen value and the light board information corresponding to each second lumen value as the second brightness information table;

[0009] S4. Calculate the dimming coefficient of each gear according to the first brightness information table and the second brightness information table, and store each gear and the dimming coefficient corresponding to each gear as the third brightness information table;

[0010] S5. Collect the dance step state value of the UAV light board, and determine whether the collected dance step state value is equal to the preset dance step state standard value;

[0011] S6. If so, collect the current light board information of the UAV light board;

[0012] S7. Obtain the current gear information of the UAV lamp board based on the collected lamp board information, and calculate the dimming coefficient corresponding to the current gear information according to the third brightness information table;

[0013] S8. Generate the current dimming file of the UAV lamp board according to the current lamp board information and the dimming coefficient corresponding to the current gear information;

[0014] S9. Perform light display according to the dimming file.

[0015] The second technical solution adopted by the present invention is:

[0016] An LED driving circuit for UAV formation performance includes a control circuit, a serial port connection circuit, a light driving circuit, and a light display circuit arranged on the UAV. The serial port connection circuit is electrically connected to the control circuit and the light driving circuit respectively, and the light driving circuit is electrically connected to the light display circuit.

[0017] The beneficial effects of the present invention are as follows:

[0018] In this solution, by collecting the dance step state value of the UAV lamp board and judging whether the collected dance step state value is equal to the preset dance step state standard value. When the collected dance step state value is equal to the preset dance step state standard value, the current lamp board information of the UAV lamp board is collected. Based on the collected lamp board information, the current gear information of the UAV lamp board is obtained, and according to the stored third brightness information table, the dimming coefficient corresponding to the current gear information is calculated. Then, according to the current lamp board information and the dimming coefficient corresponding to the current gear information, the current dimming file of the UAV lamp board is generated. Finally, light display is performed according to the dimming file. The UAV lamp board performs brightening or dimming operations according to the dimming coefficient, so that the current illumination brightness adapts to the performance requirements, thereby improving the UAV formation performance effect. Description of the Drawings

[0019] Figure 1 It is a step flow chart of a method for adjusting the brightness and darkness of the lights in a UAV formation performance according to the present invention;

[0020] Figure 2 It is a circuit connection block diagram of an LED driving circuit for a UAV formation performance according to the present invention;

[0021] Figure 3 It is a circuit schematic diagram of the light driving circuit of an LED driving circuit for a UAV formation performance according to the present invention;

[0022] Figure 4 It is a circuit schematic diagram of the light display circuit of an LED driving circuit for a UAV formation performance according to the present invention;

[0023] Figure 5 Circuit schematic diagram of the serial port connection circuit of the LED driving circuit for UAV formation performance according to the present invention;

[0024] Label description:

[0025] 1. Control circuit; 2. Serial port connection circuit; 3. Lighting driving circuit; 4. Lighting display circuit. Specific implementation mode

[0026] To illustrate the technical content, achieved purpose and effect of the present invention in detail, the following is described in conjunction with the implementation mode and accompanied by the drawings.

[0027] Please refer to Figure 1 , a technical solution provided by the present invention:

[0028] A method for adjusting the brightness of lights in UAV formation performance, including the following steps:

[0029] S1. Preset the number of gears of the UAV lamp board;

[0030] S2. Collect the first lumen value of the UAV lamp board under the rated state, evenly divide the collected first lumen value according to the number of gears of the UAV lamp board to obtain the second lumen value corresponding to each gear of the UAV lamp board, and store each gear of the UAV lamp board and the second lumen value corresponding to each gear as the first brightness information table;

[0031] S3. According to the first brightness information table, obtain the lamp board information corresponding to each second lumen value, and store each second lumen value and the lamp board information corresponding to each second lumen value as the second brightness information table;

[0032] S4. Calculate the dimming coefficient of each gear according to the first brightness information table and the second brightness information table, and store each gear and the dimming coefficient corresponding to each gear as the third brightness information table;

[0033] S5. Collect the dance step state value of the UAV lamp board, and judge whether the collected dance step state value is equal to the preset dance step state standard value;

[0034] S6. If so, collect the current lamp board information of the UAV lamp board;

[0035] S7. According to the collected lamp board information, obtain the current gear information of the UAV lamp board, and calculate the dimming coefficient corresponding to the current gear information according to the third brightness information table;

[0036] S8. Generate the current dimming file of the UAV lamp board according to the current lamp board information and the dimming coefficient corresponding to the current gear information;

[0037] S9. Perform light display according to the dimming file.

[0038] As can be seen from the above description, the beneficial effects of the present invention are as follows:

[0039] In this solution, the dance step state value of the drone light board is collected, and it is judged whether the collected dance step state value is equal to the preset dance step state standard value. When the collected dance step state value is equal to the preset dance step state standard value, the current light board information of the drone light board is collected. The collected light board information is used to obtain the current gear information of the drone light board. Then, according to the stored third brightness information table, the dimming coefficient corresponding to the current gear information is calculated. Next, according to the current light board information and the dimming coefficient corresponding to the current gear information, the current dimming file of the drone light board is generated. Finally, light display is performed according to the dimming file. The drone light board performs brightening or dimming operations according to the dimming coefficient, so that the current illumination brightness adapts to the performance requirements, thereby improving the drone formation performance effect.

[0040] Further, step S6 further includes the following steps:

[0041] If not, control the drone light board to perform light display according to the preset light language information.

[0042] As can be seen from the above description, when it is judged whether the collected dance step state value is equal to the preset dance step state standard value, it is only necessary to control the drone light board to perform light display according to the preset light language information, which is beneficial to improving the efficiency of light adjustment.

[0043] Further, the dimming coefficient is equal to the second lumen value corresponding to the current gear of the drone light board divided by the first lumen value of the drone light board under the rated state.

[0044] Further, the light board information is the current value on the drone light board, or the voltage value on the drone light board, or the control code on the drone light board.

[0045] Further, the number of gears of the drone light board is four.

[0046] Please refer to Figure 2 , another technical solution provided by the present invention:

[0047] An LED driving circuit for drone formation performance, including a control circuit, a serial port connection circuit, a light driving circuit, and a light display circuit arranged on the drone. The serial port connection circuit is electrically connected to the control circuit and the light driving circuit respectively, and the light driving circuit is electrically connected to the light display circuit.

[0048] As can be seen from the above description, the beneficial effects of the present invention are as follows:

[0049] The designed LED driving circuit in this solution includes a control circuit, a serial port connection circuit, a lighting driving circuit, and a lighting display circuit. The serial port connection circuit is electrically connected to the control circuit and the lighting driving circuit respectively, and the lighting driving circuit is electrically connected to the lighting display circuit. Through the cooperation among the control circuit, the serial port connection circuit, the lighting driving circuit, and the lighting display circuit, the illumination brightness of the lights emitted by the drone light board can adapt to the performance requirements, thereby improving the drone formation performance effect.

[0050] Further, the lighting driving circuit includes a first lighting driving sub-circuit, a second lighting driving sub-circuit, a third lighting driving sub-circuit, and a fourth lighting driving sub-circuit, and the structures of the first lighting driving sub-circuit, the second lighting driving sub-circuit, the third lighting driving sub-circuit, and the fourth lighting driving sub-circuit are all the same;

[0051] The first lighting driving sub-circuit includes a resistor R1, a resistor R2, a resistor R9, a capacitor C1, a capacitor C2, a capacitor C3, an inductor L1, a diode D1, and a chip U1. The first pin of the chip U1 is electrically connected to one end of the capacitor C1, one end of the inductor L1, and the cathode of the diode D1 respectively. The other end of the inductor L1 is electrically connected to the lighting display circuit. The second pin of the chip U1 is electrically connected to one end of the resistor R1. The other end of the resistor R1 is electrically connected to the serial port connection circuit. The fourth pin of the chip U1 is electrically connected to the ninth pin of the chip U1, and both the fourth pin and the ninth pin of the chip U1 are grounded. The fifth pin of the chip U1 is electrically connected to one end of the resistor R2, one end of the resistor R9, and the lighting display circuit respectively. The other end of the resistor R2 is electrically connected to the other end of the resistor R9, and both the other end of the resistor R2 and the other end of the resistor R9 are grounded. The seventh pin of the chip U1 is electrically connected to one end of the capacitor C3, one end of the capacitor C2, and the serial port connection circuit respectively. The other end of the capacitor C3 is electrically connected to the other end of the capacitor C2, and both the other end of the capacitor C3 and the other end of the capacitor C2 are grounded. The eighth pin of the chip U1 is electrically connected to the other end of the capacitor C1.

[0052] As can be seen from the above description, the chip U1 uses a power driving chip with the model of MP2480. The seventh pin of the chip U1 is connected to an external power supply through the serial port connection circuit, and the external power supply supplies power to the chip U1. A PWM signal is input to the second pin of the chip U1 through the serial port connection circuit, and the first pin of the chip U1 is connected to the lighting display circuit. In use, a PWM signal is input to the second pin of the chip U1, and the chip U1 supplies power to the lighting display circuit when outputting a specified current at the first pin of the chip U1 according to logical operation, thereby lighting up the drone light board.

[0053] Further, the lighting display circuit includes six lighting display sub - circuits with the same circuit structure. The lighting display sub - circuit includes a first LED chip and a second LED chip. The first pin of the first LED chip and the eighth pin of the second LED chip are both electrically connected to the first lighting drive sub - circuit. The second pin of the first LED chip and the seventh pin of the second LED chip are both electrically connected to the second lighting drive sub - circuit. The third pin of the first LED chip and the sixth pin of the second LED chip are both electrically connected to the third lighting drive sub - circuit. The fourth pin of the first LED chip and the fifth pin of the second LED chip are both electrically connected to the fourth lighting drive sub - circuit. The eighth pin of the first LED chip is electrically connected to the first pin of the second LED chip. The seventh pin of the first LED chip is electrically connected to the second pin of the second LED chip. The sixth pin of the first LED chip is electrically connected to the third pin of the second LED chip. The fifth pin of the first LED chip is electrically connected to the fourth pin of the second LED chip.

[0054] As can be seen from the above description, the LED chip is preferably a 5050 lamp bead. The first LED chip and the second LED chip are in a series relationship in the circuit, and the output end of the lighting drive sub - circuit is electrically connected to the access end of the corresponding lighting display sub - circuit.

[0055] Further, the serial port connection circuit includes a connector J1. The first pin, the second pin, the third pin, and the fourth pin of the connector J1 are all electrically connected to the lighting drive circuit. The fifth pin of the connector J1 is electrically connected to the sixth pin of the connector J1, and both the fifth pin and the sixth pin of the connector J1 are grounded. The seventh pin of the connector J1 is electrically connected to the eighth pin of the connector J1, and both the seventh pin and the eighth pin of the connector J1 are electrically connected to the lighting drive circuit. The ninth pin and the tenth pin of the connector J1 are both grounded.

[0056] As can be seen from the above description, the first pin to the fourth pin of the connector J1 are used to transfer the PWM signal, the fifth pin and the sixth pin of the connector J1 are used to transfer the ground connection, while the seventh pin and the eighth pin of the connector J1 are used to transfer the external power supply for the LED. The connector J1 is a plug - in transfer part between the control circuit and the lighting drive circuit, which is convenient for installation.

[0057] Further, the control circuit is a controller. The controller has a built - in control chip, and the model of the control chip is STM32F767.

[0058] Please refer to Figure 1 , Example 1 of the present invention is:

[0059] A method for adjusting the brightness of lights in a drone formation performance, comprising the following steps:

[0060] S1. Preset the number of gear positions of the drone light board; the number of gear positions of the drone light board is four.

[0061] S2. Collect the first lumen value of the drone light board under the rated state, and evenly divide the collected first lumen value according to the number of gear positions of the drone light board to obtain the second lumen value corresponding to each gear position of the drone light board, and store each gear position of the drone light board and the second lumen value corresponding to each gear position as a first brightness information table;

[0062] S3. According to the first brightness information table, obtain the light board information corresponding to each second lumen value, and store each second lumen value and the light board information corresponding to each second lumen value as a second brightness information table;

[0063] S4. Calculate the dimming coefficient of each gear position according to the first brightness information table and the second brightness information table, and store each gear position and the dimming coefficient corresponding to each gear position as a third brightness information table; the dimming coefficient is equal to the second lumen value corresponding to the current gear position of the drone light board divided by the first lumen value of the drone light board under the rated state.

[0064] S5. Collect the dance step state value of the drone light board, and determine whether the collected dance step state value is equal to the preset dance step state standard value;

[0065] S6. If so, collect the current light board information of the drone light board; the light board information is the current value on the drone light board or the voltage value on the drone light board or the control code on the drone light board.

[0066] Step S6 further includes the following steps:

[0067] If not, control the drone light board to display lights according to the preset light language information.

[0068] S7. According to the collected light board information, obtain the current gear position information of the drone light board, and calculate the dimming coefficient corresponding to the current gear position information according to the third brightness information table;

[0069] The dimming coefficient is equal to the second lumen value corresponding to the current gear position of the drone light board divided by the first lumen value of the drone light board under the rated state.

[0070] S8. Generate the current dimming file of the drone light board according to the current light board information and the dimming coefficient corresponding to the current gear position information;

[0071] S9. Perform light display according to the dimming file.

[0072] The above-mentioned lumen value is the luminous flux. The luminous flux is the part of the total radiation power emitted by a light source that can be perceived by the human eye, that is, what the human eye can see. The luminous flux is related to the visual function. The luminous flux refers to the radiation power that can be felt by the human eye, which is equal to the product of the radiation energy in a certain wavelength band per unit time and the relative visibility of that wavelength band. Since the relative visibility of the human eye to light of different wavelengths is different, when the radiation powers of lights of different wavelengths are equal, their luminous fluxes are not equal. For example, when the radiation power of green light with a wavelength of 555×10 -9 meters is equal to that of red light with a wavelength of 650×10 -9 meters, the luminous flux of the former is 10 times that of the latter.

[0073] A specific embodiment of the method for adjusting the light brightness of the UAV formation performance described above is as follows:

[0074] When the UAV light board is at the rated power, the first lumen value A is obtained. Calculated according to four gears, the lumen values decreasing in the four gears are A, 3 / 4A, 1 / 2A, and 1 / 4A respectively. After the UAV light board reaches the lumen values of the above gears, record the light board information (such as the control code information 0-255 of RGBW). Since the light board in the first gear state is set at the rated power, the light board information corresponding to the first gear lumen value A is (255, 255, 255, 255). That is, at the rated power, the light board information corresponding to the second gear lumen value 3 / 4A is (R2, G2, B2, W2), the light board information corresponding to the third gear lumen value 1 / 2A is (R3, G3, B3, W3), and the light board information corresponding to the fourth gear lumen value 1 / 4A is (R4, G4, B4, W4);

[0075] Calculate the dimming coefficients of each gear. The first gear dimming coefficient X1 = 1, the second gear dimming coefficient X2 = (R2 + G2 + B2 + W2) / (255 + 255 + 255 + 255), the third gear dimming coefficient X3 = (R3 + G3 + B3 + W3) / (255 + 255 + 255 + 255), the fourth gear dimming coefficient X4 = (R4 + G4 + B4 + W4) / (255 + 255 + 255 + 255), and store the four gears and the dimming coefficients corresponding to each gear;

[0076] When the controller receives a gear command, it calculates based on the current lamp board information (R0, G0, B0, W0) corresponding to the dimming coefficient of the current gear: the lamp board information corresponding to the first gear after dimming (X1*R0, X1*G0, X1*B0, X1*W0), the lamp board information corresponding to the second gear after dimming (X2*R0, X2*G0, X2*B0, X2*W0), the lamp board information corresponding to the third gear after dimming (X3*R0, X3*G0, X3*B0, X3*W0), the lamp board information corresponding to the fourth gear after dimming (X4*R0, X4*G0, X4*B0, X4*W0), and the lamp board is lit according to the lamp board information after dimming; unless a new gear command is input into the controller, the controller controls according to the original gear.

[0077] Please refer to Figures 2 to 5 , Embodiment 2 of the present invention is:

[0078] Please refer to Figure 2 , An LED driving circuit for drone formation performance, including a control circuit 1, a serial port connection circuit 2, a lighting driving circuit 3, and a lighting display circuit 4 provided on the drone. The serial port connection circuit 2 is electrically connected to the control circuit 1 and the lighting driving circuit 3 respectively, and the lighting driving circuit 3 is electrically connected to the lighting display circuit 4.

[0079] Please refer to Figure 3 , The lighting driving circuit 3 includes a first lighting driving sub-circuit, a second lighting driving sub-circuit, a third lighting driving sub-circuit, and a fourth lighting driving sub-circuit, and the structures of the first lighting driving sub-circuit, the second lighting driving sub-circuit, the third lighting driving sub-circuit, and the fourth lighting driving sub-circuit are the same;

[0080] The first lighting drive sub - circuit includes a resistor R1 (model SR0402), a resistor R2 (model SR1206), a resistor R9 (model SR1206), a capacitor C1 (model SC0402), a capacitor C2 (model SC0805), a capacitor C3 (model SC0402), an inductor L1 (model IND_4X4), a diode D1 (model SMA), and a chip U1 (model MP2480). One end of the first pin of the chip U1 is electrically connected to one end of the capacitor C1, one end of the inductor L1, and the cathode of the diode D1. The other end of the inductor L1 is electrically connected to the lighting display circuit 4. The second pin of the chip U1 is electrically connected to one end of the resistor R1. The other end of the resistor R1 is electrically connected to the serial port connection circuit 2. The fourth pin of the chip U1 is electrically connected to the ninth pin of the chip U1, and both the fourth pin and the ninth pin of the chip U1 are grounded. The fifth pin of the chip U1 is electrically connected to one end of the resistor R2, one end of the resistor R9, and the lighting display circuit 4. The other end of the resistor R2 is electrically connected to the other end of the resistor R9, and both the other end of the resistor R2 and the other end of the resistor R9 are grounded. The seventh pin of the chip U1 is electrically connected to one end of the capacitor C3, one end of the capacitor C2, and the serial port connection circuit 2. The other end of the capacitor C3 is electrically connected to the other end of the capacitor C2, and both the other end of the capacitor C3 and the other end of the capacitor C2 are grounded. The eighth pin of the chip U1 is electrically connected to the other end of the capacitor C1.

[0081] Please refer to Figure 4 , the lighting display circuit 4 includes six lighting display sub - circuits with the same circuit structure. The lighting display sub - circuit includes a first LED chip (using 5050 lamp beads) and a second LED chip (using 5050 lamp beads). The first pin of the first LED chip and the eighth pin of the second LED chip are both electrically connected to the first lighting drive sub - circuit. The second pin of the first LED chip and the seventh pin of the second LED chip are both electrically connected to the second lighting drive sub - circuit. The third pin of the first LED chip and the sixth pin of the second LED chip are both electrically connected to the third lighting drive sub - circuit. The fourth pin of the first LED chip and the fifth pin of the second LED chip are both electrically connected to the fourth lighting drive sub - circuit. The eighth pin of the first LED chip is electrically connected to the first pin of the second LED chip. The seventh pin of the first LED chip is electrically connected to the second pin of the second LED chip. The sixth pin of the first LED chip is electrically connected to the third pin of the second LED chip. The fifth pin of the first LED chip is electrically connected to the fourth pin of the second LED chip.

[0082] Please refer to Figure 5, the serial connection circuit 2 includes a connector J1 (model: SMT). The first pin, the second pin, the third pin, and the fourth pin of the connector J1 are all electrically connected to the lighting drive circuit 3. The fifth pin of the connector J1 is electrically connected to the sixth pin of the connector J1, and both the fifth pin and the sixth pin of the connector J1 are grounded. The seventh pin of the connector J1 is electrically connected to the eighth pin of the connector J1, and both the seventh pin and the eighth pin of the connector J1 are electrically connected to the lighting drive circuit 3. The ninth pin and the tenth pin of the connector J1 are both grounded.

[0083] The control circuit 1 is a controller, and the controller has a built-in control chip, and the model of the control chip is STM32F767.

[0084] In summary, the present invention provides a method for adjusting the brightness of lights in a drone formation performance and an LED drive circuit. By collecting the dance step state values of the drone light board and determining whether the collected dance step state values are equal to the preset dance step state standard values. When the collected dance step state values are equal to the preset dance step state standard values, the current light board information of the drone light board is collected. From the collected light board information, the current gear information of the drone light board is obtained. Then, according to the stored third brightness information table, the dimming coefficient corresponding to the current gear information is calculated. Next, based on the current light board information and the dimming coefficient corresponding to the current gear information, a current dimming file for the drone light board is generated. Finally, the lights are displayed according to the dimming file, and the drone light board performs brightening or dimming operations according to the dimming coefficient, so that the current illumination brightness adapts to the performance requirements, thereby improving the drone formation performance effect; the LED drive circuit includes a control circuit, a serial connection circuit, a lighting drive circuit, and a lighting display circuit. The serial connection circuit is electrically connected to the control circuit and the lighting drive circuit respectively, and the lighting drive circuit is electrically connected to the lighting display circuit. Through the cooperation among the control circuit, the serial connection circuit, the lighting drive circuit, and the lighting display circuit, the illumination brightness of the lights emitted by the drone light board can adapt to the performance requirements, thereby improving the drone formation performance effect.

[0085] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A method for adjusting the brightness of lights in an unmanned aerial vehicle formation performance, characterized in that, It includes the following steps: S1. Preset the number of gears of the drone light board; S2. Collect the first lumen value of the drone light board under the rated state, evenly divide the collected first lumen value according to the number of gears of the drone light board to obtain the second lumen value corresponding to each gear of the drone light board, and store each gear of the drone light board and the second lumen value corresponding to each gear as the first brightness information table; S3. According to the first brightness information table, obtain the light board information corresponding to each second lumen value, and store each second lumen value and the light board information corresponding to each second lumen value as the second brightness information table; S4. Calculate the dimming coefficient of each gear according to the first brightness information table and the second brightness information table, and store each gear and the dimming coefficient corresponding to each gear as the third brightness information table; S5. Collect the dance step state value of the drone light board, and judge whether the collected dance step state value is equal to the preset dance step state standard value; S6. If so, collect the current light board information of the drone light board; S7. According to the collected light board information, obtain the current gear information of the drone light board, and calculate the dimming coefficient corresponding to the current gear information according to the third brightness information table; S8. Generate the current dimming file of the drone light board according to the current light board information and the dimming coefficient corresponding to the current gear information; S9. Perform light display according to the dimming file.

2. The method for adjusting the brightness of the lights in the drone formation performance according to claim 1, wherein, Step S6 further includes the following steps: If not, control the drone light board to perform light display according to the preset light language information.

3. The method for adjusting the brightness of lights in the drone formation performance according to claim 1, characterized in that The dimming coefficient is equal to the second lumen value corresponding to the current gear of the drone light board divided by the first lumen value of the drone light board under the rated state.

4. The method for adjusting the brightness of lights in the drone formation performance according to claim 1, wherein The light board information is the current value on the drone light board or the voltage value on the drone light board or the control code on the drone light board.

5. The method for adjusting the brightness of the lights in the drone formation performance according to claim 1, characterized in that, The number of gears of the drone light board is four.

6. An LED driving circuit for UAV formation performance, characterized in that, It includes a control circuit, a serial port connection circuit, a light driving circuit and a light display circuit arranged on the drone. The serial port connection circuit is electrically connected to the control circuit and the light driving circuit respectively, and the light driving circuit is electrically connected to the light display circuit; The light driving circuit includes a first light driving sub-circuit, a second light driving sub-circuit, a third light driving sub-circuit and a fourth light driving sub-circuit, and the structures of the first light driving sub-circuit, the second light driving sub-circuit, the third light driving sub-circuit and the fourth light driving sub-circuit are the same; The first lighting drive sub - circuit includes a resistor R1, a resistor R2, a resistor R9, a capacitor C1, a capacitor C2, a capacitor C3, an inductor L1, a diode D1, and a chip U1. One end of the first pin of the chip U1 is electrically connected to one end of the capacitor C1, one end of the inductor L1, and the cathode of the diode D1. The other end of the inductor L1 is electrically connected to the lighting display circuit. The second pin of the chip U1 is electrically connected to one end of the resistor R1. The other end of the resistor R1 is electrically connected to the serial port connection circuit. The fourth pin of the chip U1 is electrically connected to the ninth pin of the chip U1, and both the fourth pin and the ninth pin of the chip U1 are grounded. The fifth pin of the chip U1 is electrically connected to one end of the resistor R2, one end of the resistor R9, and the lighting display circuit. The other end of the resistor R2 is electrically connected to the other end of the resistor R9, and both the other end of the resistor R2 and the other end of the resistor R9 are grounded. The seventh pin of the chip U1 is electrically connected to one end of the capacitor C3, one end of the capacitor C2, and the serial port connection circuit. The other end of the capacitor C3 is electrically connected to the other end of the capacitor C2, and both the other end of the capacitor C3 and the other end of the capacitor C2 are grounded. The eighth pin of the chip U1 is electrically connected to the other end of the capacitor C1; The control circuit is a controller, and the controller has a built - in control chip, and the model of the control chip is STM32F767.

7. The LED driving circuit for the drone formation performance according to claim 6, wherein The lighting display circuit includes six lighting display sub - circuits with the same circuit structure. The lighting display sub - circuit includes a first LED chip and a second LED chip. The first pin of the first LED chip and the eighth pin of the second LED chip are both electrically connected to the first lighting drive sub - circuit. The second pin of the first LED chip and the seventh pin of the second LED chip are both electrically connected to the second lighting drive sub - circuit. The third pin of the first LED chip and the sixth pin of the second LED chip are both electrically connected to the third lighting drive sub - circuit. The fourth pin of the first LED chip and the fifth pin of the second LED chip are both electrically connected to the fourth lighting drive sub - circuit. The eighth pin of the first LED chip is electrically connected to the first pin of the second LED chip. The seventh pin of the first LED chip is electrically connected to the second pin of the second LED chip. The sixth pin of the first LED chip is electrically connected to the third pin of the second LED chip. The fifth pin of the first LED chip is electrically connected to the fourth pin of the second LED chip.

8. The LED driving circuit for the drone formation performance according to claim 6, wherein The serial port connection circuit includes a connector J1. The first pin, the second pin, the third pin, and the fourth pin of the connector J1 are all electrically connected to the lighting drive circuit. The fifth pin of the connector J1 is electrically connected to the sixth pin of the connector J1, and both the fifth pin and the sixth pin of the connector J1 are grounded. The seventh pin of the connector J1 is electrically connected to the eighth pin of the connector J1, and both the seventh pin and the eighth pin of the connector J1 are electrically connected to the lighting drive circuit. The ninth pin and the tenth pin of the connector J1 are both grounded.

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