Automatic testing device for variable pitch propeller controller of unmanned aerial vehicle

Abstract

The utility model discloses an automatic testing device for a variable-pitch propeller controller of an unmanned aerial vehicle, and belongs to the technical field of variable-pitch propeller control of the unmanned aerial vehicle. The device comprises a cabinet, a signal control box, a power box and a touch all-in-one machine, the signal control box, the power box and the touch all-in-one machine are electrically connected with the variable pitch propeller controllers through the network switch. The signal control box is used for establishing communication connection and data processing among the power box, the touch all-in-one machine and the variable pitch propeller controller to be tested, and the signal control box internally comprises a control module and a communication module. And the power box is used for carrying out power supply adaptation and electric signal measurement on the plurality of variable pitch propeller controllers. The touch all-in-one machine is used for human-computer interaction interface configuration design The device can be used for manual or automatic testing of eight variable-pitch propeller controllers at the same time, a test report is automatically generated, and the problems that in the prior art, only one variable-pitch propeller controller can be tested at a time, the test efficiency is low, and the batch production efficiency is restricted are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of variable pitch propeller control for unmanned aerial vehicles (UAVs), and in particular relates to an automatic testing device for a variable pitch propeller controller for UAVs. Background Art

[0002] Variable pitch propeller controllers are used to adjust the pitch of drone propellers to optimize performance. During production acceptance, these controllers undergo environmental testing, including normal temperature testing, vibration, shock, high and low temperature operation, high and low temperature storage, and damp heat testing. Because the controller's performance directly impacts the safety and stability of the drone, ensuring accurate testing is crucial.

[0003] During the existing production, commissioning, and acceptance process for variable-pitch propeller controllers, commissioning personnel must spend a significant amount of manual time on setting up the speed signal generator, making test connections, and filling in test record data. This significantly impacts the acceptance cycle for testing the variable-pitch propeller controller under the various test environments mentioned above. Furthermore, the cost of test equipment such as signal generators and oscilloscopes required for testing is high, and the test state is disorganized and lacks integration. In particular, this manual commissioning method is limited to testing only one variable-pitch propeller controller at a time, resulting in low test efficiency and a significant constraint on the mass production progress of variable-pitch propeller controllers. Summary of the Invention

[0004] Technical problem to be solved: In order to avoid the shortcomings of the existing technology, the present invention provides an automatic testing device for a variable pitch propeller controller of an unmanned aerial vehicle. The device can be used for manual or automatic testing of 8 variable pitch propeller controllers at the same time, and automatically generates test reports, thereby solving the problem that the existing test acceptance through manual debugging can only test one variable pitch propeller controller at a time, resulting in low testing efficiency and restricting mass production efficiency.

[0005] The technical solution of the present invention is: an automatic testing device for a variable pitch propeller controller of a UAV, comprising a cabinet, a signal control box, a power supply box, and a touch all-in-one machine;

[0006] The cabinet is equipped with a signal control box, a power box, and a touch-sensitive integrated machine, and the signal control box, the power box, and the touch-sensitive integrated machine are electrically connected to multiple variable pitch propeller controllers through a network switch;

[0007] The signal control box is used to establish communication connections and data processing between the power box, the touch all-in-one machine, and the variable pitch propeller controller to be tested. The signal control box includes a control module and a communication module; the control module is electrically connected to the communication module and the power box through a network switch; the communication module and the power box are electrically connected to multiple variable pitch propeller controllers to be tested;

[0008] The touch all-in-one machine is used for human-computer interaction interface configuration design;

[0009] The power supply box is used to adapt the power supply to multiple variable pitch propeller controllers and measure the electrical signals;

[0010] Each variable pitch propeller controller includes a power interface and a signal interface. The power interface is electrically connected to the power box through a power cable, and the signal interface is communicatively connected to the communication module through a signal cable.

[0011] A further technical solution of the present invention is: the power module includes an adjustable programmable power supply, a power adapter unit, a serial port server, and a power acquisition unit;

[0012] The adjustable programmable power supply is connected to an external 220V AC power supply, and is simultaneously connected to a serial port server for communication and electrically connected to a power adapter unit; the serial port server is connected to the control module signal through a switch, and is used for bidirectional transparent transmission of serial port to network data and ModBus protocol conversion functions;

[0013] The power adapter unit is electrically connected to the plurality of variable pitch propeller controllers, and is used to control the plurality of variable pitch propeller controllers to be powered on or off simultaneously or to control a single variable pitch propeller controller to be powered on or off independently;

[0014] The power acquisition unit is connected in series to the power supply circuit of each variable pitch propeller controller for testing the voltage and current of the power supply circuit of each variable pitch propeller controller; the power acquisition unit is connected to the control module through a serial port server and a switch for testing data transmission.

[0015] A further technical solution of the present invention is that the communication module includes a CAN communication to Ethernet unit, a speed signal output unit, and a speed signal monitoring unit;

[0016] The CAN communication to Ethernet unit is used to realize data communication with the CAN interface of the variable pitch propeller controller using Ethernet; the CAN communication to Ethernet unit includes multiple CAN to Ethernet converters, and the CAN to Ethernet converter is a one-to-two converter for simultaneously communicating with the CAN interface data of two variable pitch propeller controllers; the CAN to Ethernet converter is connected to the control module through a switch;

[0017] The speed signal output unit includes a signal generating board, which is communicatively connected to a plurality of variable pitch propeller controllers. The signal generating board is communicatively connected to the control module via a serial port server and a switch. The speed signal output unit is used to simulate multiple speed simulation signals and output them to the corresponding variable pitch propeller controllers, and feed back the speed signals after the multiple variable pitch propeller controllers are operated to the control module;

[0018] The speed signal monitoring unit is used to monitor the speed actually generated by the test device through the signal generating board. The speed signal monitoring unit includes a YL93 network port acquisition module and multiple motors. The multiple motors are electrically connected to multiple variable pitch propeller controllers in a one-to-one correspondence. The multiple motors are all communicatively connected to the YL93 network port acquisition module. The YL93 network port acquisition module is communicatively connected to the control module through a serial port server and a switch.

[0019] A further technical solution of the present invention is: the control module adopts an S71500PLC programmable logic controller, and establishes data communication with the CAN communication to Ethernet unit and the serial port server through the internally integrated TCP communication resources; the control module is used for communication connection and data processing between the CAN communication to Ethernet unit and the serial port server.

[0020] A further technical solution of the present invention is: four CAN-to-Ethernet converters are provided to achieve communication connection with eight variable pitch propeller controllers.

[0021] A further technical solution of the present invention is: the test device also includes a printer, which is used to print a test report of the variable pitch propeller controller; the printer is connected to the signal control box for networking communication via a switch.

[0022] A further technical solution of the present invention is: the testing device also includes an accessory box, which is used to store the external power cable and signal cable of the variable pitch propeller controller.

[0023] A further technical solution of the present invention is: the touch all-in-one machine includes an initial interface, a power control interface, a comprehensive test interface, an environmental test interface, a variable distance test interface, a communication control interface, and an equipment status monitoring interface for human-computer data information interaction; wherein the initial interface includes test parameter input, system initialization, environmental test selection, and report printing and output.

[0024] A further technical solution of the present invention is that the environmental tests include vibration, impact, high and low temperature operation, high and low temperature storage, low air pressure, and hot and humid environment tests.

[0025] A further technical solution of the present invention is that the signal control box, power box and touch all-in-one machine are all independently powered and connected to a 220V AC power strip via an AC power cord.

[0026] Beneficial effects

[0027] The present invention provides an automatic test device for variable-pitch propeller controllers that can simultaneously test multiple variable-pitch propeller controllers, retaining both manual and automatic testing capabilities. In automatic testing mode, the device can simultaneously perform both normal temperature and environmental testing on multiple variable-pitch propeller controllers, completing one-click testing within three minutes and generating automatic test reports.

[0028] The present invention uses a signal generator board to output eight speed signals, effectively improving test efficiency. The signal generator board uses 485 communication. The control module sends data to the signal generator board's microcontroller via a switch and serial port server. The microcontroller's internal program processes the data and controls the corresponding output interface to generate pulse signals. A comparator further processes the pulse signals, converting them into corresponding speed analog signals, which are then transmitted to the variable-pitch propeller controller.

[0029] The serial communication function test uses a ZQWL-EthRS-E8 serial port server to implement 8-channel RS422 communication. It communicates with the control module via a switch. The control module transmits data to the serial port server via Ethernet. The serial port server then sends the data to each variable-pitch propeller controller via the RS422 serial port. After processing, the variable-pitch propeller controller feeds the output value back to the control unit via the serial port server. The serial port server implements bidirectional transparent transmission of serial-to-network data and ModBus protocol conversion. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of the structure of the present invention

[0031] Figure 2 This is a block diagram of the design scheme of the present invention;

[0032] Figure 3 This is a block diagram of the control scheme of the power module in the present invention;

[0033] Figure 4 This is a block diagram of the control scheme of the communication module in the present invention;

[0034] Figure 5 This is a functional flow chart of the software of the present invention;

[0035] Figure 6 This is a structural block diagram of the signal generating board in the present invention.

[0036] Figure numerals: 1. Automatic testing device for variable pitch propeller controller, 2. Variable pitch propeller controller to be tested. DETAILED DESCRIPTION

[0037] The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0038] This embodiment provides an automatic testing device for a variable-pitch propeller controller for a drone, which is used to test the variable-pitch propeller controller under conditions such as room temperature, vibration, shock, high and low temperature operation, high and low temperature storage, and damp heat. Using the test device of the present invention, eight variable-pitch propeller controllers can be tested simultaneously, enabling both manual testing and automatic testing. In automatic test mode, eight variable-pitch propeller controllers can be tested simultaneously under both room temperature and environmental conditions, and a one-click test can be completed within three minutes. Automatic test reports are also generated, saving testing time and manpower and improving the testing efficiency of the drone variable-pitch propeller controller.

[0039] See also Figure 1 、 2 The present invention provides an automatic testing device for a variable pitch propeller controller of a UAV, which includes a test cabinet, a signal control box, a power supply box, an accessory box, a touch-sensitive integrated machine, a network switch, a printer, and a connecting cable. The cabinet adopts a 28U standard cabinet (19 inches) for the integrated installation of various components.

[0040] Specifically, the signal control box, power box, and touchscreen display are all electrically connected to multiple variable-pitch propeller controllers via a switch. The signal control box is used to establish communication and data processing between the power box, touchscreen display, and the variable-pitch propeller controller under test, enabling speed signal processing and control. The signal control box houses a control module and a communication module. The control module is an internal logic control unit responsible for communication and data processing. The control module communicates with the communication module and power box, respectively, via a network switch. The communication module and power box are each electrically connected to the multiple variable-pitch propeller controllers under test. The power box is used to adapt power to the multiple variable-pitch propeller controllers and measure electrical signals. The communication module establishes data communication between the control module and the multiple variable-pitch propeller controllers, simulates multiple speed signals, and outputs them to the multiple variable-pitch propeller controllers. These speed signals are then transmitted to the control module. Each variable-pitch propeller controller includes a power interface and a signal interface. The power interface is electrically connected to the power box via a power cable, while the signal interface communicates with the signal control box via a signal cable. The touchscreen display is used for configuration design of the human-machine interface. The printer is connected to the switch for networking and printing test reports for the variable-pitch propeller controller. The accessory box stores the controller's external power and signal cables, keeping the wiring neat and tidy.

[0041] In this embodiment, the power box, signal control box, touchscreen all-in-one computer, and printer are all connected to the switch via Ethernet cables for networking communication. There are at least eight variable-pitch propeller controllers, each connected to the power box via an external power cable and to the signal control box via a signal cable. The signal control box and power box both use independent power supplies and are connected to a 220V AC power strip via an AC power cord. The power box is used to power and control the eight variable-pitch propeller controllers, while the signal control box is used to simulate the speed input signal and measure the output signal required for variable-pitch propeller controller testing.

[0042] See Figure 3 The power box includes an adjustable programmable power supply, a power adapter unit, a serial port server and a power acquisition unit.

[0043] The adjustable programmable power supply is connected to an external 220V AC power supply. The adjustable programmable power supply is connected to a network switch through a serial port server to achieve communication connection with the control module; the adjustable programmable power supply is also electrically connected to the power adapter unit.

[0044] The power adapter unit controls the output of each channel through a multi-channel relay board, which is in communication with the control module. The power adapter unit is electrically connected to multiple variable-pitch propeller controllers, and the multi-channel relay board allows for simultaneous power-on and power-off control of multiple controllers, as well as individual power-on and power-off control of individual controllers.

[0045] The power acquisition unit is connected in series to the power supply circuit of each variable pitch propeller controller to test the voltage and current of each variable pitch propeller controller power supply circuit. The power acquisition unit communicates with the control module through a serial port server and switch to transmit test data.

[0046] The serial device server is used to realize bidirectional transparent transmission of serial port to network data and ModBus protocol conversion function.

[0047] In this embodiment, the programmable power supply module in the power box uses a programmable voltage-regulated power supply, which communicates with the control module via a serial port server to implement adaptability testing of the variable-pitch propeller control power supply voltage from 0V to +36V. The power adapter unit uses an 8-way relay board to implement power output control for each channel. The 8-way relay board communicates with the control module via a serial port server, and communicates with the control module via a network port to RS485 protocol. The software interface is set to control buttons, and the power control button on the touch screen all-in-one interface is used to achieve simultaneous power-on and power-off control of the eight variable-pitch propeller controllers, as well as independent power-on and power-off control of each controller. The power acquisition module communicates with the control module via a serial port server to collect the operating voltage and current parameters of the eight variable-pitch propeller controllers and transmit them to the touch screen all-in-one interface for display. The power acquisition unit tests the full-load operating current and voltage of the eight variable-pitch propeller controllers during pitch change, thereby testing their variable-pitch drive capabilities. The power acquisition module tests the voltage and current of the variable-pitch propeller controller's power supply circuit and communicates with the control module via an RS485 protocol over the Ethernet port. Test results are displayed in the current output field of the touchscreen display. The power acquisition module utilizes isolated RS485 communication with a 3000V isolation voltage to prevent interference from static electricity and surges, improving the acquisition unit's environmental suitability. The communication interface is designed with a resettable fuse and TVS protection diode to prevent damage to the acquisition unit due to overvoltage or overcurrent caused by improper operation, thereby improving its reliability and stability.

[0048] Specifically, in this embodiment, the power box realizes the control of multiple power supplies or single power supplies through the RS485 bus. The current and voltage are collected by the power acquisition module, and the parameters of each channel power supply are actually monitored, and each parameter is uploaded through the RS485 bus. The three RS485 buses are simultaneously mounted on the serial port server, and the control module realizes the loading, collection and control of each power supply through the Ethernet switch. The power supply includes an AC220V to DC48V switching power supply, an AC220V to DC24V switching power supply, and a programmable DC 0-36V adjustable power supply. The DC48V power supply is used as the input of the programmable power supply, the DC24V switching power supply is used to power various internal units, and the adjustable programmable power supply provides adjustable DC 0-36V power supply for the pitch propeller controller.

[0049] See Figure 4 The communication module in the signal control box includes a CAN communication to Ethernet unit, a speed signal output unit, a speed signal monitoring unit, a serial port server, and a power supply unit.

[0050] The CAN communication to Ethernet unit is used to realize data communication with the CAN interface of the variable pitch propeller controller using Ethernet. In this embodiment, the CAN communication to Ethernet unit includes 4 CAN to Ethernet converters, and the CAN to Ethernet converter is a one-to-two converter, which is used to simultaneously communicate data with the CAN interfaces of two variable pitch propeller controllers. The 4-way CAN to Ethernet converter realizes communication connection with 8 variable pitch propeller controllers, and the CAN to Ethernet converter is connected to the control module through a switch. There are two switches here, one is located in the signal control box, directly connected to the 4-way CAN to Ethernet converter, denoted as a communication switch, which is used for Ethernet communication transmission within the communication module, and the other is located outside the signal control box, denoted as a public switch, which is used for network communication between the control module and the communication module, power box, touch all-in-one machine, and printer. The communication switch and the public switch are connected via a network cable.

[0051] The speed signal output unit includes a signal generator board, which communicates with the eight variable-pitch propeller controllers and simulates eight speed signals for output to the corresponding controllers. The signal generator board communicates with the control module via a serial port server and a switch. The speed signal output unit simulates eight speed signals and outputs them to the corresponding controllers. It then feeds the speed signals from the eight controllers back to the control module.

[0052] The speed signal monitoring unit is used to monitor the actual speed generated by the test device through the signal generating board. Specifically, the test device can test the output speed of the variable pitch propeller controller, while also monitoring the actual speed generated by the test device, and displaying both speed information on the test interface of the touch-sensitive integrated machine. The speed signal monitoring unit includes 8 motors and a finished YL93 network port acquisition module. All 8 motors are connected to the finished YL93 network port acquisition module, which is connected to the control module via a serial port server and a switch. The 8 motors are electrically connected to 8 variable pitch propeller controllers one by one, and the variable pitch propeller controllers drive the corresponding motors to rotate.

[0053] When the speed signal output unit simulates multiple speed analog signals and outputs them to the corresponding variable pitch propeller controller, the variable pitch propeller controller drives the motor to rotate, and the finished YL93 network port acquisition module realizes the motor frequency signal acquisition, converts it into a speed signal and feeds it back to the control module, and displays the speed value of the test device through the integrated interface of the touch all-in-one machine.

[0054] The control module realizes the communication connection and data processing between the CAN communication to Ethernet unit and the serial port server.

[0055] In this embodiment, the control module uses the S71500PLC configuration control program to establish data communication with the CAN to Ethernet module and the serial port server through the internally integrated TCP communication resources. The serial port communication function test uses a ZQWL-EthRS-E8 serial port server to realize 8-way RS422 communication. It has an internally integrated TCP / IP protocol stack and can realize functions such as bidirectional transparent transmission of serial port to network data and ModBus protocol conversion. The serial port server communicates with the control module through the switch. The control module transmits the data to the serial port server through Ethernet. The serial port server then sends the data to the variable pitch propeller controller through the RS422 serial port. After processing, the variable pitch propeller controller feeds the output value back to the control module through the serial port server. During the actual test, first connect the device power cable and communication cable, click the "Communication Connection" button on the initial interface, and wait for the communication connection to be established. The interface communication indicator light flashes green, indicating that a communication connection has been established between the test device and the variable pitch propeller controller.

[0056] like Figure 6 As shown, the speed signal output module uses our company's proprietary signal board to output eight analog speed signals, which are then transmitted to the variable-pitch propeller controller. After the controller executes the signal, it transmits the results to the control module via a serial port server, enabling testing of the controller's pitch control function. The speed analog signal is a square wave; higher frequency values ​​indicate higher speed values. The signal generation board utilizes 485 communication. The control module sends commands to the signal generation board via a switch and serial port server, and the signal generation board outputs a square wave signal of the corresponding frequency.

[0057] The signal generation board is mainly composed of MCU, waveform generation chip, instrument op amp, DCDC power module, 485 communication chip, etc. The MCU is responsible for communication processing and waveform generator control; the waveform generator can generate basic waveforms; the instrument op amp (amplifier) ​​adjusts the waveform amplitude; the instrument op amp (follower) improves the driving capability; the 485 communication chip completes external communication; the DCDC power module provides power to each system.

[0058] The signal control box also includes a CAN communication test module, a 422 communication test module, a 485 communication module, a power supply control module, and a speed control module.

[0059] See Figure 5This embodiment provides an automatic test device for a variable pitch propeller controller. The software design was developed using the Botu configuration environment and includes a three-layer design architecture: presentation layer, function layer, and data layer. The presentation layer is designed for the human-computer interaction interface, including the initialization interface, power supply test interface, and comprehensive test interface. The function layer corresponds to various test functions of the variable pitch propeller controller, including CAN communication function testing, speed signal output, power monitoring, and power supply control. The data layer includes functions such as communication protocol data parsing, automatic test data recording, data result qualification determination, and test report generation.

[0060] Specifically, the touchscreen all-in-one control interface includes an initialization screen, a power control screen, a comprehensive test screen, and a variable pitch propeller control test screen, enabling human-machine data and information exchange. The initialization screen includes test parameter input, system initialization, environmental test selection, and report printing. Environmental tests include vibration, shock, high and low temperature operation, high and low temperature storage, low air pressure, and damp heat. A printer is used to print test reports for the variable pitch propeller controller. The printer is connected to the touchscreen all-in-one, signal control box, and power box via a switch.

[0061] In this embodiment, the signal control box, power supply box, control module, communication module, power adapter unit, power collection unit, touchscreen integrated device, and printer all utilize independent power supplies connected to a 220V AC power strip via an AC power cord. Each variable-pitch propeller controller also includes a variable-pitch data receiving module, a power collection module, an environmental testing module, an analog output module, a power-on control module, a manual test module, a communication module, a system initialization module, a speed control module, an automatic test module, and an automatic test recording module.

[0062] The automatic testing device for a drone variable pitch propeller controller described in this embodiment is used as follows: it is used to simultaneously test eight variable pitch propeller controllers under specific test conditions, including normal temperature operation, vibration, shock, high and low temperature operation, high and low temperature storage, low pressure, and damp heat. Test items include CAN communication testing and speed testing. This testing device meets both manual and automatic testing requirements.

[0063] Specific test methods include:

[0064] Step 1. Preparation: Connect the signal interfaces of the eight variable-pitch propeller controllers to be tested to the communication module; and electrically connect the power interfaces of the eight variable-pitch propeller controllers to be tested to the power module.

[0065] Step 2: Test:

[0066] 2.1 Manual Testing:

[0067] Select "Manual Test" on the human-computer interaction interface of the touch all-in-one computer to test each variable pitch propeller controller test item one by one. In manual test mode, the test can be performed on a single variable pitch propeller controller.

[0068] The steps for manual speed test are as follows: click the "Comprehensive Interface" button in the task bar at the bottom of any interface of the touch all-in-one computer to enter the comprehensive test interface, select the test environment to be tested, and select the corresponding speed value button in the speed bar. The control module sends instructions to the signal generating board through the switch and the serial port server, and the signal generating board outputs a speed simulation signal to the 8 variable pitch propeller controllers to be tested. After the 8 variable pitch propeller controllers to be tested execute the received speed signal, the execution result is fed back to the control module through the serial port server. The control module tests and accepts the pitch function of each variable pitch propeller controller. The speed IO output domain of the touch all-in-one computer can simultaneously display the actual speed input by the 8 variable pitch propeller controllers through the signal generating board and the speed output after the variable pitch propeller controller is executed.

[0069] Specifically, the signal generator board sends a speed signal to the variable pitch propeller controller, which executes the signal and feeds it back to the control module. The control module also collects data to verify that the speed signal from the signal generator board is consistent with the speed value executed by the variable pitch propeller controller. Specifically, one is the speed value returned by the variable pitch propeller controller after execution, and the other is the actual speed output by the test device of the variable pitch propeller controller's loaded motor, which is then transmitted back to the control module via the YL93 network acquisition module.

[0070] The steps for the CAN communication test are as follows: click the "Comprehensive Interface" button in the task bar at the bottom of any interface of the touch all-in-one computer to enter the comprehensive test interface, select the CAN communication button in the test options, and the CAN communication data field can simultaneously display the CAN send data and the CAN data returned by the 8 variable pitch propeller controllers.

[0071] 2.2 Automatic testing:

[0072] Enter the corresponding variable pitch propeller controller number on the touchscreen display's initial interface and click "System Initialization." System initialization completes the functions of "powering on the variable pitch propeller controller, enabling communication, and initializing communication" with one click. Wait for the communication status indicator to turn green, then click "Auto Test" to enter the automatic test.

[0073] In the automatic test mode, the test device will test each test item synchronously. The automatic test time is 2 minutes. During the automatic test, you can switch to each sub-interface in turn to observe the test data. The automatic test program background will automatically record the data results. After the automatic test is completed, the "automatic test button" flashes green.

[0074] Step 3: Print test report:

[0075] After the manual test in step 2 is completed, or the automatic test button flashes green, click the "Print Report" button on the human-computer interaction interface of the touch all-in-one machine, and the printer will print the test acceptance report.

[0076] Click the "Print Report" button and the system will automatically generate a data report in PDF format. The format of the form is consistent with the inspection and acceptance form. It can be directly printed out by connecting to a printer and submitted as acceptance information for the variable pitch propeller controller.

[0077] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. An automatic test device for a variable pitch propeller controller of an unmanned aerial vehicle, characterized by: Including cabinet, signal control box, power box, and touch all-in-one machine; The cabinet is equipped with a signal control box, a power box, and a touch-sensitive integrated machine, and the signal control box, the power box, and the touch-sensitive integrated machine are electrically connected to multiple variable pitch propeller controllers through a network switch; The signal control box is used to establish communication connections and data processing between the power box, the touch all-in-one machine, and the variable pitch propeller controller to be tested. The signal control box includes a control module and a communication module; the control module is electrically connected to the communication module and the power box through a network switch; the communication module and the power box are electrically connected to multiple variable pitch propeller controllers to be tested; The touch all-in-one machine is used for human-computer interaction interface configuration design; The power supply box is used to adapt the power supply to multiple variable pitch propeller controllers and measure the electrical signals; Each variable pitch propeller controller includes a power interface and a signal interface. The power interface is electrically connected to the power box through a power cable, and the signal interface is communicatively connected to the communication module through a signal cable.

2. The automatic testing device for the variable pitch propeller controller of a UAV according to claim 1, characterized in that: The power box includes an adjustable programmable power supply, a power adapter unit, a serial port server, and a power acquisition unit; The adjustable programmable power supply is externally connected to a 220V AC power supply, and is simultaneously connected to the serial port server for communication and electrically connected to the power adapter unit; the serial port server is signal-connected to the control module via a switch; The power adapter unit is electrically connected to the plurality of variable pitch propeller controllers, and is used to control the plurality of variable pitch propeller controllers to be powered on or off simultaneously or to control a single variable pitch propeller controller to be powered on or off independently; The power acquisition unit is connected in series to the power supply circuit of each variable pitch propeller controller for testing the voltage and current of the power supply circuit of each variable pitch propeller controller; the power acquisition unit is connected to the control module through a serial port server and a switch for testing data transmission.

3. The automatic testing device for the variable pitch propeller controller of a UAV according to claim 1 is characterized in that: The communication module includes a CAN communication to Ethernet unit, a speed signal output unit, and a speed signal monitoring unit; The CAN communication to Ethernet unit is used to realize data communication with the CAN interface of the variable pitch propeller controller using Ethernet; the CAN communication to Ethernet unit includes multiple CAN to Ethernet converters, and the CAN to Ethernet converter is a one-to-two converter for simultaneously communicating with the CAN interface data of two variable pitch propeller controllers; the CAN to Ethernet converter is connected to the control module through a switch; The speed signal output unit includes a signal generating board, which is communicatively connected to a plurality of variable pitch propeller controllers. The signal generating board is communicatively connected to the control module via a serial port server and a switch. The speed signal output unit is used to simulate multiple speed simulation signals and output them to the corresponding variable pitch propeller controllers, and to feed back the speed signals after the multiple variable pitch propeller controllers are in operation to the control module. The speed signal monitoring unit is used to monitor the speed actually generated by the test device through the signal generating board. The speed signal monitoring unit includes a YL93 network port acquisition module and multiple motors. The multiple motors are electrically connected to multiple variable pitch propeller controllers in a one-to-one correspondence. The multiple motors are all communicatively connected to the YL93 network port acquisition module. The YL93 network port acquisition module is communicatively connected to the control module through a serial port server and a switch.

4. The automatic testing device for the variable pitch propeller controller of a UAV according to claim 3 is characterized by: The control module adopts the S71500PLC programmable logic controller, and establishes data communication with the CAN communication to Ethernet unit and the serial port server through the internal integrated TCP communication resources; the control module is used for communication connection and data processing between the CAN communication to Ethernet unit and the serial port server.

5. The automatic testing device for the variable pitch propeller controller of a UAV according to claim 3 is characterized by: There are four CAN-to-Ethernet converters to achieve communication connection with eight variable-pitch propeller controllers.

6. The automatic testing device for the variable pitch propeller controller of a UAV according to claim 1, characterized in that: The testing device also includes a printer, which is used to print a test report of the variable pitch propeller controller; the printer is connected to the signal control box for networking communication via a switch.

7. The automatic testing device for the variable pitch propeller controller of a UAV according to claim 1, characterized in that: The testing device also includes an accessory box, which is used to store external power cables and signal cables of the variable pitch propeller controller.

8. The automatic testing device for the variable pitch propeller controller of a UAV according to claim 1, characterized in that: The touch all-in-one machine includes an initial interface, a power control interface, a comprehensive test interface, an environmental test interface, a variable distance test interface, a communication control interface, and a device status monitoring interface for human-computer data information interaction; The initial interface includes test parameter input, system initialization, environmental test selection, and report printing and output.

9. The automatic testing device for the variable pitch propeller controller of a UAV according to claim 8, characterized in that: The environmental tests include vibration, impact, high and low temperature operation, high and low temperature storage, low air pressure, and hot and humid environment tests.

10. The automatic testing device for the variable pitch propeller controller of a UAV according to claim 1, characterized in that: The signal control box, power box, and touch all-in-one machine are all independently powered and connected to a 220V AC power strip via an AC power cord.

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