Unmanned aerial vehicle control circuit board

Abstract

The utility model discloses an unmanned aerial vehicle control circuit board. A power supply circuit, an MCU control circuit, a sensor circuit and a peripheral interface circuit are integrated on the circuit board. The MCU control circuit comprises an MCU main chip circuit, a signal adjusting and filtering circuit, a voltage sampling circuit, a buzzer driving circuit, a signal phase inverting circuit, an indicating lamp circuit and a camera switching control circuit; the sensor circuit comprises a gyroscope module circuit, a FLASH storage circuit, a barometer module circuit and an OSD module circuit; the peripheral interface circuit comprises an electronic speed controller interface, a GPS interface, a buzzer and indicating lamp interface, a camera interface, a receiver interface, an image transmission interface and a USB interface. According to the utility model, abundant function module processing capability and expansion interfaces are designed, the expansion and flexible matching use of the function modules are facilitated, and the basic sensor is integrated on the circuit board, so that the stability of the connection between the sensor and the MCU control circuit is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to unmanned plane control technical field, specifically relates to a kind of unmanned plane control circuit board. BACKGROUND

[0002] Unmanned plane is applied widely in aerial photography, forestry plant protection and each field, and is promoted to use due to having the advantages such as small size, low cost, simple operation, vertical take-off and landing, with the intelligent development of unmanned plane, the functional module integrated on unmanned plane circuit board is more and more, and for different use scene, the functional module carried is not identical, the existing unmanned plane control circuit board, power line and signal line are used to be welded connection between functional module, cannot be achieved quick disassembly and quick connection, the expansion of functional module is limited, not conducive to the structure assembly of unmanned plane. CONTENT OF UTILITY MODEL

[0003] The utility model aims at above -mentioned problem, provide a kind of unmanned plane control circuit board, and the expansion interface and processing capacity of rich functional module are integrated with the sensor of basic line board, easy to the expansion of functional module.

[0004] The utility model is realized through the following technical schemes:

[0005] A kind of unmanned plane control circuit board, characterized by: the line board is integrated with power supply circuit, MCU control circuit, sensor circuit and peripheral interface circuit;The power supply circuit includes the 12V output circuit of the battery voltage step-down output, 5V output circuit and MCU power supply circuit;The MCU control circuit includes MCU main chip circuit, signal regulation filter circuit, voltage sampling circuit, buzzer drive circuit, signal inverting circuit, indicator light circuit and camera switching control circuit;The sensor circuit includes gyroscope module circuit, FLASH storage circuit, barometer module circuit and OSD module circuit;The peripheral interface circuit includes electric governor interface, GPS interface, buzzer and indicator light interface, camera interface, receiver interface, image transmission interface and USB interface;

[0006] The MCU main chip circuit includes the MCU chip U1 of 64 pins, including the 8 pins MOTOR1-MOTOR8 of motor control, the pin CAM-SW of camera switching control, MCU working indicator light pin LED-STATUS, battery voltage sampling pin ADC-BATT, buzzer drive signal pin BEEPER and the pin connected with the gyroscope module circuit, FLASH storage circuit, barometer module circuit, OSD module circuit, GPS, receiver and image transmission equipment;

[0007] The signal conditioning filter circuit includes a conditioning resistor and a filter capacitor; the pin of the MCU chip U1 controlling the motor is connected to the motor through a series connection of the conditioning resistor; the electric governor interface is connected to the corresponding pin of the MCU chip U1 through resistance and capacitor filtering; the corresponding pin of the MCU chip U1 is also connected to the GPS interface, the image transmission interface and the receiver interface through a series connection of the conditioning resistor;

[0008] The voltage sampling circuit includes a series connection of sampling resistors R23 and R28, the sampling resistors R23 and R28 are connected between the positive and negative electrodes of the battery, and the common end between the sampling resistors R23 and R28 outputs a sampling signal ADC-BATT to the MCU chip U1;

[0009] The buzzer driving circuit includes a transistor Q1, the control electrode of the transistor Q1 is connected to the buzzer driving signal pin BEEPER of the MCU chip U1 through a resistor R26;

[0010] The signal inverting circuit includes a transistor Q22, the control electrode of the transistor Q22 is connected to the image transmission device through a resistor R41, and the collector electrode of the transistor Q22 is connected to the MCU chip U1;

[0011] The indicator lamp circuit includes light emitting diodes D4, D8, D9 and D10, the light emitting diodes D8, D9 and D10 are respectively connected in series with resistors between the output positive and negative electrodes of the MCU power supply circuit, the 5V output circuit and the 12V output circuit of the power supply circuit 1; the light emitting diode D4 is connected in series with a resistor R21 between the output end of the MCU power supply circuit and the MCU working indicator lamp pin LED-STATUS of the MCU chip U1;

[0012] The camera switching control circuit includes a chip U5, the chip U5 is connected to two camera paths, and the control end thereof is connected to the pin CAM-SW of the MCU chip U1 for controlling the switching of the cameras.

[0013] Further, the MCU power supply circuit takes the 5V voltage of the 5V output circuit as input and outputs a 3.3V voltage for the working of the MCU control circuit.

[0014] Further, the gyroscope module circuit includes a gyroscope sensor chip U10, and the chip U10 is connected to the corresponding pin of the MCU chip U1 through internal wiring of the circuit board.

[0015] Further, the FLASH storage circuit includes a FLASH storage chip U7, and the chip U7 is connected to the corresponding pin of the MCU chip U1 through internal wiring of the circuit board.

[0016] Further, the barometer module circuit comprises a barometer chip U8, which is connected with the corresponding pin of the MCU chip U1 through internal wiring of the circuit board.

[0017] Further, the OSD module circuit comprises an OSD chip U6, which is connected with the corresponding pin of the MCU chip U1 through internal wiring of the circuit board.

[0018] The unmanned aerial vehicle control circuit board has the advantages that: the circuit board is integrated with a power supply circuit, an MCU control circuit, a sensor circuit and an external interface circuit; rich function module processing capacity and expansion interfaces are designed, so that the function modules are easy to expand and flexibly used in combination, and the stability of the connection between the sensor and the MCU control circuit is improved based on the integrated sensor of the circuit board. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The first part of the utility model is a circuit principle diagram.

[0020] Figure 2 The second part of the utility model is a circuit principle diagram.

[0021] Figure 3 The third part of the utility model is a circuit principle diagram.

[0022] Figure 4 The fourth part of the utility model is a circuit principle diagram.

[0023] Figure 5 The utility model is a principle block diagram.

[0024] In the drawing, 1, power supply circuit, 2, MCU control circuit, 3, sensor circuit, 4, external interface circuit, 11, 12V output circuit, 12, 5V output circuit, 13, MCU power supply circuit, 21, MCU main chip circuit, 22, signal regulation filter circuit, 23, voltage sampling circuit, 24, buzzer driving circuit, 25, signal inverting circuit, 26, indicator lamp circuit, 27, camera switching control circuit, 31, gyroscope module circuit, 32, FLASH storage circuit, 33, barometer module circuit, 34, OSD module circuit, 41, electric governor interface, 42, GPS interface, 43, buzzer and indicator lamp interface, 44, camera interface, 45, receiver interface, 46, image transmission interface, 47, USB interface. DETAILED DESCRIPTION

[0025] The utility model will be further described in connection with specific examples and drawings.

[0026] As Figures 1-4As shown, a kind of unmanned aerial vehicle control circuit board, the circuit board is integrated with power supply circuit 1, MCU control circuit 2, sensor circuit 3 and peripheral interface circuit 4;The power supply circuit 1 includes the 12V output circuit 11 of battery voltage step-down output, 5V output circuit 12 and MCU power supply circuit 13;The MCU control circuit 2 includes MCU main chip circuit 21, signal conditioning filter circuit 22, voltage sampling circuit 23, buzzer drive circuit 24, signal inversion circuit 25, indicator light circuit 26 and camera switching control circuit 27;The sensor circuit 3 includes gyroscope module circuit 31, FLASH storage circuit 32, barometer module circuit 33 and OSD module circuit 34;The peripheral interface circuit 4 includes electric governor interface 41, GPS interface 42, buzzer and indicator light interface 43, camera interface 44, receiver interface 45, image transmission interface 46 and USB interface 47.

[0027] The MCU power supply circuit 13 takes the 5V voltage of the 5V output circuit 12 as input, and outputs 3.3V voltage for the working of MCU control circuit.

[0028] The MCU main chip circuit 21 includes MCU chip U1 with 64 pins, including 8 pins MOTOR1-MOTOR8 for controlling motor, CAM-SW for controlling camera switching, LED-STATUS for MCU working indicator light, ADC-BATT for battery voltage sampling, BEEPER for buzzer drive signal, and pins connected with the gyroscope module circuit 31, FLASH storage circuit 32, barometer module circuit 33, OSD module circuit 34, GPS, receiver and image transmission device.

[0029] The signal conditioning filter circuit 22 includes adjusting resistance and filter capacitance, the pins of MCU chip U1 for controlling motor are connected to motor through series adjusting resistance, and the electric governor interface is connected to the corresponding pins of MCU chip U1 through resistance and capacitance filtering;Adjusting resistance is also connected in series between the corresponding pins of MCU chip U1 and GPS interface 42, image transmission interface 46 and receiver interface 45.For example, four motors are used in general unmanned aerial vehicle, and the speed control ends MOTOR1-R~MOTOR4-R of the four motors are connected to the pins MOTOR1~MOTOR4 (26th, 27th, 57th and 56th pins) of MCU chip U1 for controlling motor through adjusting resistance R6, R7, R8 and R9 respectively.

[0030] The voltage sampling circuit 23 includes sampling resistors R23 and R28 connected in series, and the common end between sampling resistors R23 and R28 outputs sampling signal ADC-BATT to MCU chip U1.

[0031] The buzzer drive circuit 24 includes a transistor Q1, the control electrode of the transistor Q1 is connected to the buzzer drive signal pin BEEPER of the MCU chip U1 through the resistor R26.

[0032] The signal inverting circuit 25 includes a transistor Q22, the control electrode of the transistor Q22 is connected to the image transmission device through the resistor R41, and the collector of the transistor Q22 is connected to the MCU chip U1.

[0033] The indicator lamp circuit 26 includes light emitting diodes D4, D8, D9 and D10, the light emitting diodes D8, D9 and D10 are connected in series with resistors between the output positive and negative poles of the MCU power supply circuit 13, the 5V output circuit 12 and the 12V output circuit 11 of the power supply circuit 1 respectively; the light emitting diode D4 is connected in series with the resistor R21 between the output of the MCU power supply circuit 13 and the MCU working indicator lamp pin LED-STATUS of the MCU chip U1.

[0034] The camera switching control circuit 27 includes a chip U5, the chip U5 is connected to two cameras, and the control end is connected to the pin CAM-SW of the MCU chip U1 for controlling the switching of the cameras.

[0035] The gyroscope module circuit 31 includes a gyroscope sensor chip U10, and the chip U10 is connected to the corresponding pin of the MCU chip U1 through the wiring of the circuit board.

[0036] The FLASH storage circuit 32 includes a FLASH storage chip U7, and the chip U7 is connected to the corresponding pin of the MCU chip U1 through the wiring of the circuit board.

[0037] The barometer module circuit 33 includes a barometer chip U8, and the chip U8 is connected to the corresponding pin of the MCU chip U1 through the wiring of the circuit board.

[0038] The OSD module circuit 34 includes an OSD chip U6, and the chip U6 is connected to the corresponding pin of the MCU chip U1 through the wiring of the circuit board.

[0039] As Figure 5The unmanned aerial vehicle control circuit board, its power supply circuit 1 includes 12V output circuit 11, 5V output circuit 12 and MCU power supply circuit 13, 12V output circuit 11 12V is given to the picture transmission equipment power supply, 5V output circuit 12 5V is given to receiver and camera use, the 3.3V of MCU power supply circuit 13 is given to MCU control circuit 2 and sensor circuit 3's gyroscope module circuit 31, FLASH storage circuit 32, barometer module circuit 33, OSD module circuit 34 power supply.Gyroscope module circuit 31, FLASH storage circuit 32, barometer module circuit 33, OSD module circuit 34 integrated on control circuit board respectively with MCU control circuit 2 establish data communication connection, control circuit board and the receiver on unmanned aerial vehicle, camera, GPS positioning module and picture transmission equipment complete connection through the corresponding interface on peripheral interface circuit 4.

[0040] The above embodiments are only preferred embodiments of the utility model, and are only used for explaining the utility model, not limiting the utility model, any change, replacement, combination, simplification, modification, etc. made by the person skilled in the art without departing from the spirit and essence of the utility model and principle should be equivalent replacement mode, and should be included in the protection scope of the utility model.

Claims

1. A drone control wiring board, characterized by: The circuit board is integrated with a power supply circuit, an MCU control circuit, a sensor circuit and a peripheral interface circuit; the power supply circuit comprises a 12V output circuit, a 5V output circuit and an MCU power supply circuit for outputting the battery voltage after voltage reduction; the MCU control circuit comprises an MCU main chip circuit, a signal conditioning and filtering circuit, a voltage sampling circuit, a buzzer driving circuit, a signal inversion circuit, an indicator lamp circuit and a camera switching control circuit; the sensor circuit comprises a gyroscope module circuit, a FLASH storage circuit, a barometer module circuit and an OSD module circuit; the peripheral interface circuit comprises an electronic governor interface, a GPS interface, a buzzer and indicator lamp interface, a camera interface, a receiver interface, a picture transmission interface and a USB interface; The MCU main chip circuit comprises an MCU chip U1 with 64 pins, including 8 pins MOTOR1-MOTOR8 for controlling the motor, a pin CAM-SW for controlling the camera switching, an MCU working indicator lamp pin LED-STATUS, a battery voltage sampling pin ADC-BATT, a buzzer driving signal pin BEEPER, and pins connected to the gyroscope module circuit, the FLASH storage circuit, the barometer module circuit, the OSD module circuit, the GPS, the receiver and the picture transmission device; The signal conditioning and filtering circuit comprises conditioning resistors and filtering capacitors; the pins of the MCU chip U1 for controlling the motor are connected to the motor through the series connection of the conditioning resistors; the electronic governor interface is connected to the corresponding pins of the MCU chip U1 through the filtering of resistors and capacitors; the corresponding pins of the MCU chip U1 are also connected to the GPS interface, the picture transmission interface and the receiver interface through the series connection of conditioning resistors; The voltage sampling circuit comprises series-connected sampling resistors R23 and R28, which are connected between the positive and negative electrodes of the battery, and output a sampling signal ADC-BATT to the MCU chip U1 at the common end between the sampling resistors R23 and R28; The buzzer driving circuit comprises a transistor Q1, and the control electrode of the transistor Q1 is connected to the buzzer driving signal pin BEEPER of the MCU chip U1 through a resistor R26; The signal inversion circuit comprises a transistor Q22, the control electrode of the transistor Q22 is connected to the picture transmission device through a resistor R41, and the collector electrode of the transistor Q22 is connected to the MCU chip U1; The indicator lamp circuit comprises light emitting diodes D4, D8, D9 and D10, the light emitting diodes D8, D9 and D10 are respectively connected in series with resistors and then connected between the output positive and negative electrodes of the MCU power supply circuit, the 5V output circuit and the 12V output circuit of the power supply circuit; the light emitting diode D4 is connected in series with a resistor R21 and then connected between the output end of the MCU power supply circuit and the MCU working indicator lamp pin LED-STATUS of the MCU chip U1; The camera switching control circuit comprises a chip U5, which is connected to two camera paths and has a control end connected to the pin CAM-SW of the MCU chip U1 for controlling the camera switching. 2.The UAV control circuit board of claim 1, wherein: The MCU power supply circuit takes the 5V voltage of the 5V output circuit as input and outputs 3.3V voltage for the MCU control circuit to work. 3.The UAV control circuit board of claim 1, wherein: The gyroscope module circuit comprises a gyroscope sensor chip U10, which is connected with the corresponding pin of the MCU chip U1 through internal wiring of the circuit board.

4. The drone control wiring board of claim 1, wherein: The FLASH storage circuit comprises a FLASH storage chip U7, which is connected with the corresponding pin of the MCU chip U1 through internal wiring of the circuit board.

5. The drone control wiring board of claim 1, wherein: The barometer module circuit comprises a barometer chip U8, which is connected with the corresponding pin of the MCU chip U1 through internal wiring of the circuit board. 6.The UAV control circuit board of claim 1, wherein: The OSD module circuit comprises an OSD chip U6, which is connected with the corresponding pin of the MCU chip U1 through internal wiring of the circuit board.

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