A motor steering detection device based on drone and its use method

Abstract

The present invention discloses a motor steering detection device based on a drone and a method for use, which relates to the technical field of drones, including a drone, wherein four propeller brackets are distributed in an array on the outside of the drone, a propeller drive motor is provided on the top of each propeller bracket, a drone propeller is installed on the top of the propeller drive motor, a propeller protection frame is fixedly connected to the outside of the drone propeller, and a bracket limit plate is fixedly connected to the bottom of the drone corresponding to the position of the propeller bracket; at the same time, when the present invention is in use, by adopting a one-to-one detection method, the motor of each drone propeller is individually detected, thereby improving the detection accuracy, and at the same time, it can be accurately positioned by switching the motor on and off when the motor is in a working state, a correctly installed motor will stop working directly and turn off the display light, while an erroneous motor will remain in a working state and keep the display light on, so that the staff can accurately locate the problem and deal with it in time.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a motor steering detection device based on an UAV and a method for using the device. Background Art

[0002] Unmanned aerial vehicles (UAVs), also known as "drones", are unmanned aircraft that are controlled by radio remote control equipment and self-contained program control devices, or are operated completely or intermittently autonomously by on-board computers.

[0003] During the production process, existing drone arms are prone to sequential welding of motor phase lines, which can cause the motor to turn in the wrong direction, resulting in the drone being unable to fly normally, damage to the fuselage, or dangerous accidents. The operating speed of the drone motor is over 10,000 rpm. Even if external strips are installed on the motor during the manufacturing process, it is difficult to distinguish the direction of rotation by naked eye alone and it is easy to cause visual fatigue. Alternatively, each motor needs to be connected to an external motor driver for detection, or additional detection equipment needs to be developed, which is inefficient and costly.

[0004] The prior art discloses an online detection device for drone motor steering with application number CN202020734534.8. It is directly installed on the arm function test tooling and adopts a hinge-type operation mode. When testing the arm function, the hinge of the fixed DC motor is closed, and all motors are electrically driven on the drone mainboard. The principle that the direction of the induced electromotive force of the DC motor is related to the direction of rotation is utilized. A soft connection method is used on the surface of the DC motor of the drone under test (without blades) to realize that the DC motor of the drone under test drives the small DC motor to rotate, and the induced electromotive force is generated for detection.

[0005] However, existing technologies still have certain drawbacks. For example, the technical solution in application number CN202020734534.8 requires very high detection accuracy during its implementation. Furthermore, higher-quality motors have lower detection efficiency, and motor vibrations can interfere with detection results. Furthermore, existing detection methods can waste power, shortening the lifespan of detection batteries. Summary of the Invention

[0006] In order to solve the deficiencies mentioned in the above background technology, the purpose of the present invention is to provide a motor steering detection device based on a drone and a method for using the same.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A motor steering detection device based on a drone comprises a drone, wherein four propeller brackets are distributed in an array on the outside of the drone, a propeller drive motor is provided at the top of each propeller bracket, a drone propeller is mounted on the top of the propeller drive motor, a propeller protection frame is fixedly connected to the outside of the drone propeller, a bracket limit plate is fixedly connected to the bottom end of the drone corresponding to the position of the propeller bracket, the bottom end of the bracket limit plate is fixedly connected to the base plate, and a detection plate is rotatably connected to the top end of each propeller bracket;

[0009] The cross section of the detection plate is approximately Y-shaped, with a movable base frame at the bottom and an air duct at the top.

[0010] The bottom end of the detection plate is rotatably connected to a detection support rod.

[0011] Furthermore, the side wall at the bottom end of the detection support rod is fixedly connected to a movable support rod, the bottom end of the movable support rod is slidably connected to the top end of the base plate, the top end of the movable support rod is rotatably connected to a support rod rotating shaft, and the four support rod rotating shafts are fixedly connected to the same lifting bracket, and a lifting control rod is provided on the inner side of the lifting bracket, and the top end of the lifting control rod is connected to a lifting push plate, and the top end of the lifting push plate is installed on the inner top side wall of the drone.

[0012] Furthermore, a shooting mechanism is provided on the outer side wall of the drone, and a camera is provided at the front end of the shooting mechanism.

[0013] Furthermore, a control plate is fixedly installed at the center position of the inner side of the air duct, a flexible rod is fixedly connected to the inner side wall of the air duct, and a wind-bearing plate is installed at the top end of the flexible rod.

[0014] Furthermore, a control socket is provided at the front end of the detection board corresponding to the position of the control board, a control plug is provided inside the control socket, a display light is provided at the front end of the control socket, an air outlet is provided at the front end of the display light, and a control chip is provided at the bottom end of the detection board.

[0015] Furthermore, the wind-bearing plate is located at the top of the control panel, and a chip control button is provided on the top of the control panel at the bottom of the wind-bearing plate.

[0016] A motor steering detection method based on a drone includes the following steps:

[0017] Step 1: First, use the lifting plate to pull the lifting bracket on the outside of the lifting control rod to make the lifting bracket rise, and the support rod shaft on the outside of the lifting bracket will also rise;

[0018] Step 2: The rising support rod shaft will drive the movable support rod connected to the outer side of the support rod shaft to flip and move at the top of the base plate. During the movement, it will drive the detection support rod to which it is fixed to flip inward, and drive the detection plate to flip toward the bottom, so that the movable base at the bottom of the detection plate can be embedded in the propeller bracket to maintain stability;

[0019] Step 3: After the movable chassis at the bottom of the detection board can be inserted into the propeller bracket, the control socket at the front of the detection board will be inserted into the propeller drive motor. Connect the control plug to the propeller drive motor, and let the four propeller drive motors drive the drone's propellers to start rotating;

[0020] Step 4: After starting the four drone propellers, the propeller drive motor is controlled to maintain a stable speed so that the output can be kept stable during the rotation. The propeller installed in the forward direction will blow the wind to the bottom, forming an upward lift, while the propeller installed in the reverse direction will blow the wind to the top. During this process, the normal propeller drive motor will maintain downward pressure, allowing the detection board to continuously receive wind pressure, and the wind-bearing plate to press downward, so that the chip control button at the top of the control board can remain pressed. The propeller installed in the reverse direction cannot provide stable downward wind pressure, and the chip control button cannot be kept pressed.

[0021] Step 5: After the fan in the previous step maintains stable operation, observe the indicator light on the front of the detection board to determine whether the corresponding motor is installed upside down. Under normal working conditions, the indicator light on the front of the detection board will turn on and remain bright. Then, when the chip control button at the bottom of the wind support board is pressed, the propeller drive motor will be turned off, allowing the propeller drive motor to turn off the drone propeller at the top and turn off the indicator light on the front of the detection board;

[0022] The propeller drive motor that is installed upside down will keep the indicator light on. The upside-down drone propeller will not generate corresponding wind pressure on the wind-bearing plate at the bottom, so the indicator light will remain on and the wrong drone propeller will remain in working condition, making it easier for staff to deal with the wrong motor.

[0023] Beneficial effects of the present invention:

[0024] 1. The present invention adopts a one-to-one detection method, and each drone propeller motor is tested separately, which improves the detection accuracy. At the same time, it can accurately locate the motor by turning it on and off when the motor is in working state. The correctly installed motor will stop working directly and turn off the indicator light, while the faulty motor will remain in working state and keep the indicator light on, which makes it easier for staff to accurately locate the problem and deal with it in time.

[0025] 2. When the present invention is in the off state, the load of the entire circuit is reduced to the minimum, which can maintain the power of the detection battery to the greatest extent. In the non-working state, it can largely maintain the service life of the internal mechanism and extend the service life of the battery, thereby reducing the cost of use to a certain extent.

[0026] 3. The present invention adopts internal chip control, the overall structure is very light, easy to carry, and can be used in a wider range. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 Schematic diagram of the internal structure of the UAV of the present invention;

[0030] Figure 3 It is a schematic diagram of the top structure of the present invention;

[0031] Figure 4 It is a schematic diagram of the detection mechanism of the present invention;

[0032] Figure 5 It is a schematic diagram of the interior of the detection mechanism of the present invention;

[0033] Figure 6 This is a diagram of the detection working principle.

[0034] In the figure: 1. UAV; 2. Propeller bracket; 3. Propeller drive motor; 4. UAV propeller; 5. Propeller protection frame; 6. Detection board; 61. Movable base; 62. Air duct; 63. Control board; 64. Flexible rod; 65. Wind-bearing plate; 66. Control socket; 67. Control plug; 68. Display light; 69. Air outlet; 610. Control chip; 7. Detection support rod; 8. Bracket limit plate; 9. Base plate; 10. Movable support rod; 11. Support rod shaft; 12. Lifting bracket; 13. Lifting control rod; 14. Lifting push plate; 15. Shooting mechanism; 16. Camera. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] A motor steering detection device based on drone and its use method, such as Figure 1 、 2 As shown in Figure 3, it includes a drone 1, and four propeller brackets 2 are distributed in an array on the outside of the drone 1. A propeller drive motor 3 is provided on the top of each propeller bracket 2, and a drone propeller 4 is installed on the top of the propeller drive motor 3. The outer side of the drone propeller 4 is fixedly connected with a propeller protection frame 5, and the bottom end of the drone 1 is fixedly connected with a bracket limit plate 8 corresponding to the position of the propeller bracket 2, and the bottom end of the bracket limit plate 8 is fixedly connected with a base plate 9.

[0038] The top of each propeller bracket 2 is rotatably connected to a detection plate 6, the bottom end of the detection plate 6 is rotatably connected to a detection support rod 7, the side wall at the bottom end of the detection support rod 7 is fixedly connected to a movable support rod 10, the bottom end of the movable support rod 10 is slidably connected to the top of the base plate 9, the top of the movable support rod 10 is rotatably connected to a support rod rotating shaft 11, the four support rod rotating shafts 11 are fixedly connected to the same lifting bracket 12, a lifting control rod 13 is provided on the inside of the lifting bracket 12, the top of the lifting control rod 13 is connected to a lifting push plate 14, and the top of the lifting push plate 14 is installed on the inner top side wall of the drone 1.

[0039] A photographing mechanism 15 is provided on the outer wall of the drone 1 , and a camera 16 is provided at the front end of the photographing mechanism 15 .

[0040] The detection plate 6 is movably installed on the outside of the drone 1 and is in a tightened and disconnected state under normal conditions. The detection plate 6 needs to be controlled by the detection support rod 7 at the bottom end of the detection plate 6 so that the detection plate 6 can contact the corresponding propeller drive motor 3.

[0041] like Figure 4 and 5 As shown, the cross-section of the detection plate 6 is approximately Y-shaped, a movable base frame 61 is provided at the bottom end of the detection plate 6, an air duct 62 is provided at the top end of the detection plate 6, a control board 63 is fixedly installed at the center position inside the air duct 62, a flexible rod 64 is fixedly connected to the inner wall of the air duct 62, and a wind-bearing plate 65 is installed at the top end of the flexible rod 64.

[0042] A control socket 66 is provided at the front end of the detection board 6 at the position corresponding to the control board 63, a control plug 67 is provided inside the control socket 66, a display light 68 is provided at the front end of the control socket 66, an air outlet 69 is provided at the front end of the display light 68, and a control chip 610 is provided at the bottom end of the detection board 6.

[0043] The control plug 67 is used to control the output of the chip 610 during the detection state, allowing the drone propeller drive motor 3 to be controlled by the control chip 610 during the detection process. The corresponding position on the outside of the corresponding propeller drive motor 3 is also provided with an interface corresponding to the control plug 67, which is used for control by the control chip during the detection process.

[0044] The wind-bearing plate 65 is located at the top of the control board 63 , and a chip control button is provided on the top of the control board 63 at the bottom of the wind-bearing plate 65 .

[0045] When working normally, 4 will control the blow downward, allowing the air flow to enter through the air inlet groove 62 at the top of the detection plate 6, and allowing the air flow to press the air support plate 65 connected to the top of the control plate 63 by the flexible rod 64. Then the air flow will enter the interior of the detection plate 6 through the air inlet groove 62 and finally blow out from the bottom of the air outlet 69.

[0046] A motor steering detection method based on a drone includes the following steps:

[0047] Step 1: First, the lifting bracket 12 located outside the lifting control rod 13 is pulled by the lifting push plate 14 to make the lifting bracket 12 rise, and the support rod shaft 11 outside the lifting bracket 12 will also rise.

[0048] The lifting bracket 12 is controlled by the lifting and lowering processing of the lifting push plate 14 driven by the motor built into the drone.

[0049] Step 2: The rising support rod shaft 11 will drive the movable support rod 10 connected to the outer side of the support rod shaft 11 to flip and move at the top of the base plate 9. During the movement, it will drive the fixedly connected detection support rod 7 to flip inward, and drive the detection plate 6 to flip toward the bottom, so that the movable base frame 61 at the bottom end of the detection plate 6 can be embedded in the propeller bracket 2 to maintain stability.

[0050] Step 3: After the movable base frame 61 at the bottom of the detection board 6 can be embedded in the propeller bracket 2, the control socket 66 at the front end of the detection board 6 will be embedded in the propeller drive motor 3, allowing the control plug 67 to connect the propeller drive motor 3, allowing the four propeller drive motors 3 of the drone to drive the drone propeller 4 to start rotating.

[0051] Step 4: After starting the four drone propellers 4, the speed of the drone propeller 4 is maintained stable by controlling the propeller drive motor 3, so that the output will be kept stable during the rotation. The drone propeller 4 installed in the forward direction will blow the wind to the bottom end, forming an upward lift, while the drone propeller 4 installed upside down will blow the wind to the top. During this process, the normal propeller drive motor 3 will maintain downward pressure, allowing the detection plate 6 to continuously receive the wind pressure, and the wind-bearing plate 65 to press downward, so that the chip control button at the top of the control board 63 can remain in a pressed state, while the drone propeller 4 installed upside down cannot provide stable downward wind pressure, and cannot maintain the chip control button in a pressed state.

[0052] Step 5: After the fan in the previous step maintains stable operation, observe the display light 68 at the front end of the detection board 6 to determine whether the corresponding motor is installed upside down. Under normal working conditions, the display light 68 at the front end of the detection board 6 will turn on and maintain a bright state. After that, the chip control button at the bottom of the wind-bearing plate 65 is pressed to turn off the propeller drive motor 3, allowing the propeller drive motor 3 to turn off the top drone propeller 4 and turn off the display light 68 at the front end of the detection board 6.

[0053] The upside-down propeller drive motor 3 will keep the display light 68 in a bright state, and the upside-down drone propeller 4 will not generate corresponding wind pressure on the wind-bearing plate 65 at the bottom, so the display light 68 will remain in a bright state, and the wrong drone propeller 4 will also remain in a working state, making it easier for staff to deal with the wrong motor.

[0054] The working principle of the test is as follows Figure 6 As shown, in the off state, transistors Q1, Q3 and Q4 are all non-conductive, the power consumption of the entire circuit is 0, and the internal power is not wasted.

[0055] After the chip control switch is pressed, the current of the power supply Vbat passes through the resistor R1 and the transistor Q1, passes through the chip control switch SW1, and then passes through the resistor R3 to the ground.

[0056] At this time, the transistor Q1 is in a saturated conduction state, and the voltage regulator D1 is reversely broken down through the voltage regulator bias resistor R3. The emitter of the transistor Q2 outputs a stable voltage to the chip U1, and the light-emitting LED1 (i.e., the display light 68) also lights up normally, allowing the staff to observe the status of the circuit in time.

[0057] After chip U1 is powered on, its GP IO-Out pin outputs a high level, turning on transistor Q4.

[0058] After the transistor Q4 is turned on, it is in a saturated conduction state, maintaining the stability of the entire detection mechanism and the normal operation of the propeller drive motor 3. The normally operating drone propeller 4 will blow the wind-bearing plate 65, allowing the wind-bearing plate 65 to press the chip control switch at the bottom and enter the shutdown process.

[0059] After the detection mechanism is stably connected to the four propeller drive motors 3 of the drone, the power supply Vbat will saturate and turn on the transistor Q3, so that the voltage that should be input to GPIO-I n is pulled to a low level of 0V. The chip U1 detects that the chip control switch SW1 is pressed, and the GP IO-Out pin also outputs a low level of 0V, disconnecting the line connected to the propeller, stopping the propeller, and turning off the illuminated display light 68, disconnecting the line.

[0060] At this point, all normally working drone propellers 4 are disconnected, while the incorrectly installed drone propellers 4 cannot provide downward pressure, resulting in the inability to use wind pressure to press the wind-bearing plate 65, so they will remain in a rotating state, allowing staff to locate the problematic drone propeller 4 in time and facilitate the staff to take corresponding measures.

[0061] In the off state, all loads in the circuit are disconnected and the battery will not provide external power supply. Therefore, the power consumption of the shutdown is reduced to a minimum, which maximizes the battery power and extends the battery life.

[0062] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0063] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A motor steering detection device based on a drone, comprising a drone (1), characterized in that: Four propeller brackets (2) are arranged in an array on the outside of the UAV (1), a propeller drive motor (3) is provided at the top of each propeller bracket (2), a UAV propeller (4) is installed at the top of the propeller drive motor (3), a propeller protection frame (5) is fixedly connected to the outside of the UAV propeller (4), a bracket limit plate (8) is fixedly connected to the bottom of the UAV (1) at a position corresponding to the propeller bracket (2), a base plate (9) is fixedly connected to the bottom of the bracket limit plate (8), and a detection plate (6) is rotatably connected to the top of each propeller bracket (2); The cross section of the detection plate (6) is approximately Y-shaped, a movable base frame (61) is provided at the bottom end of the detection plate (6), and an air induction groove (62) is provided at the top end of the detection plate (6); The bottom end of the detection plate (6) is rotatably connected to a detection support rod (7); The side wall at the bottom end of the detection support rod (7) is fixedly connected to a movable support rod (10), the bottom end of the movable support rod (10) is slidably connected to the top end of the base plate (9), the top end of the movable support rod (10) is rotatably connected to a support rod rotating shaft (11), the four support rod rotating shafts (11) are fixedly connected to the same lifting bracket (12), a lifting control rod (13) is provided inside the lifting bracket (12), the top end of the lifting control rod (13) is connected to a lifting push plate (14), and the top end of the lifting push plate (14) is installed on the inner top side wall of the drone (1); The outer wall of the drone (1) is provided with a shooting mechanism (15), and the front end of the shooting mechanism (15) is provided with a camera (16); A control plate (63) is fixedly installed at the center position of the inner side of the air induction groove (62), a flexible rod (64) is fixedly connected to the inner side wall of the air induction groove (62), and a wind bearing plate (65) is installed at the top end of the flexible rod (64); A control socket (66) is provided at the front end of the detection board (6) at a position corresponding to the control board (63), a control plug (67) is provided inside the control socket (66), a display light (68) is provided at the front end of the control socket (66), an air outlet (69) is provided at the front end of the display light (68), and a control chip (610) is provided at the bottom end of the detection board (6); The wind-bearing plate (65) is located at the top of the control panel (63), and a chip control button is provided on the top of the control panel (63) at the bottom of the wind-bearing plate (65).

2. A motor steering detection method based on a drone, comprising the detection device according to claim 1, characterized in that: The following steps are involved: Step 1: First, the lifting bracket (12) located outside the lifting control rod (13) is pulled by the lifting push plate (14) to make the lifting bracket (12) rise, and the support rod shaft (11) outside the lifting bracket (12) will also rise; Step 2: The rising support rod shaft (11) will drive the movable support rod (10) connected to the outer side of the support rod shaft (11) to flip and move at the top of the base plate (9). During the movement, it will drive the detection support rod (7) to which it is fixed to flip inward, and drive the detection plate (6) to flip toward the bottom, so that the movable base frame (61) at the bottom end of the detection plate (6) can be embedded in the propeller bracket (2) to maintain stability; Step 3: After the movable base frame (61) at the bottom of the detection board (6) is able to be embedded in the propeller bracket (2), the control socket (66) at the front end of the detection board (6) is embedded in the propeller drive motor (3), and the control plug (67) is connected to the propeller drive motor (3), so that the four propeller drive motors (3) of the drone drive the drone propellers (4) to start rotating; Step 4: After starting the four drone propellers (4), the propeller drive motor (3) is controlled to maintain a stable rotation speed of the drone propeller (4), so that the output will be kept stable during the rotation process. The drone propeller (4) installed in the forward direction will blow the wind to the bottom end, forming an upward lift, while the drone propeller (4) installed in the reverse direction will blow the wind to the top end. During this process, the normal propeller drive motor (3) will maintain downward pressure, allowing the detection plate (6) to continuously receive the wind pressure, allowing the wind-bearing plate (65) to press downward, so that the chip control button at the top of the control board (63) can maintain a pressed state, while the drone propeller (4) installed in the reverse direction cannot provide a stable downward wind pressure, and cannot maintain the chip control button in a pressed state; Step 5: After the fan in the previous step maintains stable operation, by observing the display light (68) at the front end of the detection board (6), it is determined whether the corresponding motor is installed in reverse. Under normal working conditions, the display light (68) at the front end of the detection board (6) will turn on and maintain a bright state. After that, the chip control button at the bottom end of the wind-bearing plate (65) is pressed to turn off the propeller drive motor (3), so that the propeller drive motor (3) turns off the drone propeller (4) at the top, and turns off the display light (68) at the front end of the detection board (6); The reversed propeller drive motor (3) will keep the indicator light (68) in a bright state, and the reversed drone propeller (4) will not generate corresponding wind pressure on the bottom wind-bearing plate (65), so the indicator light (68) will remain in a bright state, and the wrong drone propeller (4) will also remain in a working state, making it easier for staff to handle the wrong motor.

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