Automatic test system for variable pitch propeller controller of unmanned aerial vehicle and use method of automatic test system

Abstract

The invention discloses an unmanned aerial vehicle variable pitch propeller controller automatic test system and a use method thereof, and belongs to the technical field of unmanned aerial vehicle variable pitch propeller control. The test system comprises a control module, a communication module and a power supply module, and the control module is electrically connected with the communication module and the power supply module through a network switch and used for communication connection and data processing among the modules. And the communication module and the power supply module are electrically connected with the plurality of variable pitch propeller controllers to be tested respectively. The power supply module is used for carrying out power supply adaptation and electric signal measurement on the plurality of variable-pitch propeller controllers, and the communication module is used for establishing data communication between the control module and the plurality of variable-pitch propeller controllers and transmitting rotating speed signals of the plurality of variable-pitch propeller controllers to the control module. The test system can test eight variable-pitch propeller controllers at the same time and automatically generate a test report, 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, and in particular relates to an automatic testing system for a variable pitch propeller controller for unmanned aerial vehicles and a method for using the same. Background Art

[0002] The variable pitch propeller controller is used to adjust the pitch of the drone propeller to optimize the performance of the drone. During the production acceptance process, the variable pitch propeller controller needs to undergo normal temperature testing, vibration, impact, high and low temperature operation, high and low temperature storage, damp heat and other environmental tests. Since the performance parameters of the variable pitch propeller controller itself directly affect the safety performance and stability of the drone, it is particularly important to ensure the test accuracy.

[0003] During the existing production, debugging and acceptance process of variable pitch propeller controllers, the debugging personnel need to spend a lot of manual debugging time in the process of setting up the speed signal generator, testing the connection, filling in the test record data, etc., which greatly affects the acceptance cycle of the variable pitch propeller controller under the above-mentioned various test environments. Moreover, the cost of test equipment such as signal generators and oscilloscopes required for testing is expensive, and the test status is scattered and lacks integration. In particular, the testing capability of this manual debugging method can only test one variable pitch propeller controller at a time, and the test efficiency is low, which seriously restricts the batch production progress of variable pitch propeller controllers. Summary of the invention

[0004] Technical problem to be solved: In order to avoid the deficiencies of the prior art, the present invention provides an automatic testing system for a variable pitch propeller controller of an unmanned aerial vehicle and a method of using the system, which can be used for manual or automatic testing of 8 variable pitch propeller controllers at the same time, and automatically generate test reports, thereby solving the problem that in the prior art test acceptance through manual debugging, only one variable pitch propeller controller can be tested at a time, the testing efficiency is low, and the efficiency of mass production is restricted.

[0005] The technical solution of the present invention is: an automatic test system for a variable pitch propeller controller of a UAV, comprising a control module, a communication module, and a power module;

[0006] The control module is electrically connected to the communication module and the power module through a network switch; the communication module and the power module are electrically connected to a plurality of variable pitch propeller controllers to be tested; wherein:

[0007] The power supply module is used to perform power adaptation and electrical signal measurement on multiple variable pitch propeller controllers;

[0008] The communication module is used to establish data communication between the control module and multiple variable pitch propeller controllers, and transmit the speed signals of the multiple variable pitch propeller controllers to the control module;

[0009] The control module is used for communication connection and data processing between modules;

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

[0012] 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 connected to the control module signal through a switch;

[0013] The power adapter unit is electrically connected to a 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 a single variable pitch propeller controller to be powered on or off independently;

[0014] The power collection unit is connected in series in 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 collection unit is connected to the control module through a serial port server and a switch for testing the transmission of data.

[0015] A further technical solution of the present invention is: 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, which is used to communicate data with the CAN interfaces of two variable pitch propeller controllers at the same time; 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 unit via a serial port server and a switch. The speed signal output unit is used to simulate a multi-channel speed simulation signal and output it to the corresponding variable pitch propeller controller, and feed back the speed signal after the multi-channel variable pitch propeller controller is running to the control module;

[0018] The speed signal monitoring unit is used to monitor the speed actually generated by the test system 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: four CAN-to-Ethernet converters are provided to achieve communication connection with eight variable pitch propeller controllers.

[0020] A further technical solution of the present invention is: the test system also includes a touch-integrated machine and a printer, the touch-integrated machine is used for human-computer interaction interface configuration design; the printer is used to print test reports of the variable pitch propeller controller; the touch-integrated machine and the printer are networked and communicated with the control module, communication module, and power module through a switch.

[0021] 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, which are used for human-computer data information interaction; wherein the initial interface includes test parameter input, system initialization, environmental test selection, and report printing output.

[0022] A further technical solution of the present invention is that the control module, communication module and power module are all powered independently and connected to a 220V AC power strip via an AC power cord.

[0023] A further technical solution of the present invention is: the switch is used for Ethernet communication transmission, and two switches are provided, one is a public switch, which is used for network communication between the control module and the communication module, the power module, the touch all-in-one machine, and the printer, and the other is a communication switch, which is used for Ethernet communication transmission within the communication module, and the communication switch and the public switch are connected via a network cable.

[0024] A method for using an automatic test system for a variable pitch propeller controller of a UAV is used to simultaneously test the rotation speed of eight variable pitch propeller controllers under a specific test environment. The method comprises:

[0025] Step 1, 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;

[0026] Step 2: Select the test environment to be tested on the human-machine interaction interface of the touch integrated machine and enter the test parameters;

[0027] Step 3, the speed test process is as follows: 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; the speed simulation signal is a square wave signal, and the signal generating board outputs a square wave signal of a corresponding frequency to 8 variable pitch propeller controllers to be tested;

[0028] Step 4: After the eight variable pitch propeller controllers to be tested have executed the received square wave signals, the execution results are fed back to the control module through the serial port server, and the control module performs test acceptance on the variable pitch function of each variable pitch propeller controller;

[0029] Step 5: Select Print Output on the human-machine interaction interface of the touch all-in-one machine, and the printer will print the test acceptance report.

[0030] A further technical solution of the present invention is: the specific test environment includes normal temperature operation, vibration, impact, high and low temperature operation, high and low temperature storage, low air pressure, and damp heat test environment.

[0031] Beneficial Effects

[0032] The beneficial effects of the present invention are as follows: the present invention provides an automatic test system for a variable pitch propeller controller and a method for using the same, the test system can test multiple variable pitch propeller controllers at the same time, retaining both the manual test function and the automatic test function. The test system of the present invention can simultaneously meet the normal temperature test and environmental test of multiple variable pitch propeller controllers in the automatic test mode, can complete the one-button test within 3 minutes, and generate an automatic test report.

[0033] The speed signal output of the present invention adopts a signal generating board to realize 8-way speed signal output, which effectively improves the test efficiency. The signal generating board uses 485 communication mode, and the control module sends data to the single-chip microcomputer of the signal generating board through the switch and the serial port server. After the internal program of the single-chip microcomputer is processed, the corresponding output interface is controlled to generate a pulse signal, and the pulse signal is further processed by the comparator to be converted into a corresponding speed analog signal, which is transmitted to the variable pitch propeller controller.

[0034] The serial communication function test uses a ZQWL-EthRS-E8 serial port server to realize 8-way RS422 communication, communicates with the control module through the switch, and the control module transmits to the serial port server through Ethernet. The serial port server then sends it to each variable pitch propeller controller through the RS422 serial port. After processing, the variable pitch propeller controller feeds the output value back to the control unit through the serial port server. The serial port server realizes the bidirectional transparent transmission of serial port to network data and ModBus protocol conversion function. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a block diagram of the design scheme of the present invention;

[0036] Figure 2 It is a schematic diagram of the physical structure of the present invention;

[0037] Figure 3 This is a control scheme block diagram of the power module in the present invention;

[0038] Figure 4It is a control scheme block diagram of the communication module in the present invention;

[0039] Figure 5 It is a functional flow chart of the software of the present invention;

[0040] Figure 6 It is a structural block diagram of the signal generating board in the present invention.

[0041] Figure numerals: 1. Automatic testing system for variable pitch propeller controller, 2. Variable pitch propeller controller to be tested. DETAILED DESCRIPTION

[0042] The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0043] Embodiment 1:

[0044] This embodiment provides an automatic test system for a variable pitch propeller controller of a drone, which is used to test the variable pitch propeller controller of a drone under normal temperature, vibration, impact, high and low temperature operation, high and low temperature storage, damp heat and other environments. By using the test system of the present invention, 8 variable pitch propeller controllers can be tested at the same time, which can realize both manual testing and automatic testing functions. In the automatic test mode, the normal temperature test and environmental test of 8 variable pitch propeller controllers can be met at the same time, and the one-button test can be completed within 3 minutes, and an automatic test report can be generated, which saves test time and manpower, and improves the test efficiency of the variable pitch propeller controller of the drone.

[0045] See also Figure 1 , 2 The present invention provides an automatic test system for a variable pitch propeller controller of a UAV, which includes a test cabinet, a signal control box, a power box, an accessory box, a touch all-in-one machine, a network switch, a printer and a connecting cable. The cabinet adopts a 28U standard cabinet (19 inches) for integrated installation of various components.

[0046] Specifically, the signal control box, the power box, and the touch all-in-one machine are all electrically connected to multiple variable pitch propeller controllers through a switch. The signal control box is used to establish communication connection and data processing between the power box, the touch all-in-one machine, and the variable pitch propeller controller to be tested, so as to realize the processing and control of the speed signal. A control module and a communication module are arranged in the signal control box, wherein the control module is an internal logic control unit for communication connection and data processing; the control module is respectively connected to the communication module and the power box through a network switch. The communication module and the power box are respectively electrically connected to multiple variable pitch propeller controllers to be tested. The power box is used to perform power adaptation and electrical signal measurement on multiple variable pitch propeller controllers. The communication module is used to establish data communication between the control module and multiple variable pitch propeller controllers, simulate multi-channel speed signal output to multiple variable pitch propeller controllers, and transmit the speed signals of multiple variable pitch propeller controllers 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 through a cable, and the signal interface is connected to the signal control box through a communication cable. The touch all-in-one machine is used for human-computer interaction interface configuration design. The printer is connected to the switch for networking communication and is used to print the test report of the variable pitch propeller controller.

[0047] In this embodiment, the power box, signal control box, and touch all-in-one machine are connected to the switch via an Ethernet cable for networking communication. There are at least 8 variable pitch propeller controllers, and the 8 variable pitch propeller controllers are connected to the power box via an external power cable and connected to the signal control box via a communication cable. The signal control box and the power box are both independently powered and connected to the 220V AC power strip via an AC power cord. The power box is used for power supply and control of the 8 variable pitch propeller controllers, and the signal control box is used for speed input signal simulation and variable pitch propeller controller output signal measurement required for the variable pitch propeller controller test.

[0048] See also Figure 3 ,The power box includes an adjustable programmable power supply, a power adapter unit, a serial port server and a power collection unit.

[0049] The adjustable programmable power supply is externally connected to a 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 a power adapter unit.

[0050] The power adapter unit realizes the output control of each channel through the multi-channel relay board, and the multi-channel relay board is connected to the control module. The power adapter unit is electrically connected to multiple variable pitch propeller controllers, and the multi-channel relay board is used to control the simultaneous power-on and power-off of multiple variable pitch propeller controllers or the independent power-on and power-off of a single variable pitch propeller controller.

[0051] The power collection 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 collection unit is connected to the control module through the serial port server and the switch to test the data transmission.

[0052] In this embodiment, the programmable power supply module in the power box adopts a programmable voltage regulating power supply, and communicates with the control module through a serial port server to realize the adaptability test of the variable pitch propeller control power supply voltage 0V~+36V. The power adapter unit adopts an 8-way relay board to realize the power output control of each channel. The 8-way relay board communicates with the control module through a serial port server, and communicates with the control module through the network port to RS485 protocol. The software interface sets the button for control, and the power control button on the touch all-in-one interface is used to realize the simultaneous power-on and power-off of 8 variable pitch propeller controllers and the independent power-on and power-off function control of a single unit. The power acquisition module communicates with the control module through a serial port server to realize the collection of the working voltage and working current parameters of the 8-way variable pitch propeller controllers, and transmits them to the touch all-in-one interface for display. The full-load working current and voltage of the 8 variable pitch propeller controllers during the pitch change process are tested by the power acquisition unit to realize the variable pitch drive capability test. The power acquisition module implements voltage and current testing of the variable pitch propeller controller power supply circuit, and communicates with the control module through the network port to RS485 protocol. The test results are displayed in the current output domain of the touch all-in-one interface. The power acquisition module uses isolated RS485 communication with an isolation voltage of 3000V to prevent interference from static electricity and surges, and improve the environmental applicability of the acquisition unit; the communication interface is designed with self-recovery insurance and TVS protection tube to prevent damage to the acquisition unit caused by overvoltage or overcurrent due to misoperation, and improve the reliability and stability of the acquisition unit.

[0053] Specifically, in the present embodiment, the power box controls multiple power supplies or a single power supply through the RS485 bus. The current and voltage are collected through 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 mounted on the serial port server at the same time, 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 each internal unit, and the adjustable programmable power supply provides an adjustable DC 0-36V power supply for the variable pitch propeller controller.

[0054] See also 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.

[0055] 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.

[0056] The speed signal output unit includes a signal generating board, which is connected to the eight variable pitch propeller controllers for simulating eight speed analog signals and outputting them to the corresponding variable pitch propeller controllers. The signal generating board is connected to the control module through a serial port server and a switch. The speed signal output unit simulates eight speed analog signals and outputs them to the corresponding variable pitch propeller controllers, and feeds back the speed signals of the eight variable pitch propeller controllers after they are running to the control module.

[0057] The speed signal monitoring unit is used to monitor the speed actually generated by the test system through the signal generating board. Specifically, the test system can test the output speed of the variable pitch propeller controller, and at the same time monitor the speed actually generated by the test system, and display the two speed information on the test interface of the touch all-in-one machine. The speed signal monitoring unit includes 8 motors and a finished YL93 network port acquisition module. The 8 motors are all connected to the finished YL93 network port acquisition module in communication. The finished YL93 network port acquisition module is connected to the control module through 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 controller drives the corresponding motors to rotate.

[0058] When the speed signal output unit simulates multiple speed simulation 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 system through the integrated interface of the touch all-in-one machine.

[0059] The control module realizes the communication connection and data processing between the CAN communication to Ethernet unit and the serial port server.

[0060] 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. The TCP / IP protocol stack is integrated internally, which 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, and the control module transmits to the serial port server through Ethernet. The serial port server then sends it to the variable pitch propeller controller through the RS422 serial port. After the variable pitch propeller controller processes it, the output value is fed back to the control module through the serial port server. In 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 flashes green, indicating that a communication connection has been established between the test system and the variable pitch propeller controller.

[0061] like Figure 6 As shown in the figure, the speed signal output module uses the signal board developed by our company to realize 8-way speed analog signal output, which is transmitted to the variable pitch propeller controller. After the variable pitch propeller controller executes the signal, it feeds back the execution result to the control module through the serial port server to realize the test of the variable pitch function of the variable pitch propeller controller. The speed analog signal is a square wave signal. The larger the square wave signal frequency value, the larger the speed value. The signal generation board adopts 485 communication mode. The control module sends instructions to the signal generation board through the switch and the serial port server, and the signal generation board outputs a square wave signal of the corresponding frequency.

[0062] The signal generation board is mainly composed of MCU, waveform generation chip, instrument amplifier, DCDC power module, 485 communication chip, etc. The MCU is responsible for communication processing and control of the waveform generator; the waveform generator can generate basic waveforms; the instrument amplifier (amplification) adjusts the waveform amplitude; the instrument amplifier (following) improves the driving capability; the 485 communication chip completes external communication; the DCDC power module supplies power to each system.

[0063] 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.

[0064] See also Figure 5The software design of the variable pitch propeller controller automatic test system provided in this embodiment is developed through the configuration environment of Botu, including a three-layer design architecture of the presentation layer, the functional layer and the data layer. The presentation layer is designed for the human-computer interaction interface, including the initial interface, the power supply test interface, and the comprehensive test interface; the functional layer corresponds to the various test function items of the variable pitch propeller controller, including CAN communication function test, speed signal output, power monitoring, and power supply control; the data layer includes communication protocol data analysis, automatic test data recording, data result qualification judgment, test report generation and other functions.

[0065] Specifically, the control interface of the touch all-in-one machine includes the initial interface, power control interface, comprehensive test interface, and variable pitch propeller control test interface, which are used for human-machine data information interaction. The initial interface includes test parameter input, system initialization, environmental test selection, and report printing and output. Environmental tests include vibration, impact, high and low temperature operation, high and low temperature storage, low air pressure, and damp heat tests. The printer is used to print the test report of the variable pitch propeller controller. The printer is connected to the touch all-in-one machine, signal control box, and power box through a switch for networking communication.

[0066] In this embodiment, the signal control box, power box, control module, communication module, power adapter unit, power collection unit, touch all-in-one machine and printer are all independently powered and connected to the 220V AC power strip through an AC power cord. Each of the variable pitch propeller controllers also includes a variable pitch data receiving module, a power collection module, an environmental test 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.

[0067] Example 2.

[0068] This embodiment provides a method for using the automatic test system for the variable pitch propeller controller of the UAV described in Embodiment 1, which is used to test 8 variable pitch propeller controllers under specific test environments at the same time. The test environments include: normal temperature operation, vibration, impact, high and low temperature operation, high and low temperature storage, low pressure, and wet heat test environments. The test items include CAN communication test and speed test. The test system meets the requirements of manual test and automatic test.

[0069] Test methods include:

[0070] Step 1, preparation: connect the signal interfaces of the eight variable pitch propeller controllers to be tested to the communication module; connect the power interfaces of the eight variable pitch propeller controllers to be tested to the power module.

[0071] Step 2: Test:

[0072] 2.1 Manual Testing:

[0073] Select "Manual Test" in the human-machine interaction interface of the touch all-in-one machine 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.

[0074] 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 machine 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 the 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 results are fed back to the control module through the serial port server, and 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 machine can simultaneously display the actual input speed of the 8 variable pitch propeller controllers through the signal generating board and the speed output after the variable pitch propeller controller is executed.

[0075] Specifically, the signal generating board gives the variable pitch propeller controller a speed signal, and the variable pitch propeller controller executes the signal and feeds it back to the control module. At the same time, the control module also needs to collect whether the speed signal from the signal generating board to the variable pitch propeller controller is consistent with the speed value executed by the variable pitch propeller controller. That is, one is the speed value returned by the variable pitch propeller controller after execution, and the other is the speed actually output by the test system of the variable pitch propeller controller with load motor, which is then returned to the control module through the YL93 network acquisition module.

[0076] 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 machine to enter the comprehensive test interface, select the CAN communication button in the test options, and the CAN send data and the CAN data sent back by the 8 variable pitch propeller controllers can be displayed simultaneously in the CAN communication data field.

[0077] 2.2 Automatic testing:

[0078] Enter the corresponding variable pitch propeller controller number on the initial interface of the touch all-in-one machine, and click the "System Initialization" button. System initialization completes the functions of "powering on the variable pitch propeller controller, triggering communication enable, and initializing communication" with one click. After the communication status indicator turns green, click the "Auto Test" button to enter the automatic test.

[0079] In the automatic test mode, the test system 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.

[0080] Step 3: Print test report:

[0081] 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.

[0082] 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.

[0083] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary 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 intent of the present invention.

Claims

1. An automatic test system for a variable pitch propeller controller of an unmanned aerial vehicle, characterized in that: Including control module, communication module and power module; The control module is electrically connected to the communication module and the power module through a network switch; the communication module and the power module are electrically connected to a plurality of variable pitch propeller controllers to be tested; wherein: The power supply module is used to perform power adaptation and electrical signal measurement on multiple variable pitch propeller controllers; The communication module is used to establish data communication between the control module and multiple variable pitch propeller controllers, simulate multi-channel speed signal output to the multiple variable pitch propeller controllers, and transmit the speed signals of the multiple variable pitch propeller controllers to the control module; The control module is used for communication connection and data processing between modules; Each variable pitch propeller controller includes a power interface and a signal interface. The power interface is electrically connected to the power module via a cable, and the signal interface is communicatively connected to the communication module via a cable.

2. The automatic test system for the variable pitch propeller controller of the unmanned aerial vehicle according to claim 1 is characterized in that: The power module includes an adjustable programmable power supply, a power adapter unit, a serial port server, and a power collection 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 connected to the control module signal through a switch; The power adapter unit is electrically connected to a 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 a single variable pitch propeller controller to be powered on or off independently; The power collection unit is connected in series in 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 collection unit is connected to the control module through a serial port server and a switch for testing the transmission of data.

3. The automatic test system for the variable pitch propeller controller of the unmanned aerial vehicle according to claim 2 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, which is used to communicate data with the CAN interfaces of two variable pitch propeller controllers at the same time; 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 unit via a serial port server and a switch. The speed signal output unit is used to simulate a multi-channel speed simulation signal and output it to the corresponding variable pitch propeller controller, and feed back the speed signal after the multi-channel variable pitch propeller controller is running to the control module; The speed signal monitoring unit is used to monitor the speed actually generated by the test system 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 test system for the variable pitch propeller controller of the unmanned aerial vehicle according to claim 3 is characterized by: There are four CAN-to-Ethernet converters to achieve communication connection with eight variable pitch propeller controllers.

5. The automatic test system for the variable pitch propeller controller of the unmanned aerial vehicle according to claim 4 is characterized in that: The test system also includes a touch-integrated machine and a printer. The touch-integrated machine is used for configuration design of a human-computer interaction interface; the printer is used to print a test report of a variable pitch propeller controller; the touch-integrated machine and the printer are both networked and communicated with a control module, a communication module, and a power module through a switch.

6. The automatic test system for the variable pitch propeller controller of the unmanned aerial vehicle according to claim 5 is characterized by: The touch integrated 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, which are used for human-computer data information interaction; The initial interface includes test parameter input, system initialization, environmental test selection, and report printing and output.

7. The automatic test system for the variable pitch propeller controller of a UAV according to claim 5 is characterized by: The switch is used for Ethernet communication transmission. There are two switches, one is a public switch, which is used for network communication between the control module and the communication module, power module, touch all-in-one machine, and printer, and the other is a communication switch, which is used for Ethernet communication transmission within the communication module. The communication switch and the public switch are connected via a network cable.

8. The automatic test system for the variable pitch propeller controller of a UAV according to claim 1 is characterized by: The control module, communication module and power module are all independently powered and connected to a 220V AC power socket via an AC power cord.

9. A method for using the automatic testing system for the variable pitch propeller controller of a UAV according to claim 6, characterized in that: The method is used to simultaneously test the rotation speed of 8 variable pitch propeller controllers under a specific test environment, and includes: Step 1, 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; Step 2: Select the test environment to be tested on the human-machine interaction interface of the touch integrated machine and enter the test parameters; Step 3, the speed test process is as follows: 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; the speed simulation signal is a square wave signal, and the signal generating board outputs a square wave signal of a corresponding frequency to 8 variable pitch propeller controllers to be tested; Step 4: After the eight variable pitch propeller controllers to be tested have executed the received square wave signals, the execution results are fed back to the control module through the serial port server, and the control module performs test acceptance on the variable pitch function of each variable pitch propeller controller; Step 5: Select Print Output on the human-machine interaction interface of the touch all-in-one machine, and the printer will print the test acceptance report.

10. The method of use according to claim 9, characterized in that: The specific test environment includes normal temperature operation, vibration, impact, high and low temperature operation, high and low temperature storage, low air pressure, and damp heat test environment.

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