Rotor wing anti-icing and de-icing equipment test platform

Abstract

The invention belongs to the technical field of detection devices, and relates to a rotor wing anti-icing and de-icing equipment test platform. Comprising a power supply conversion module, a program control DC power supply, a PLC module, an RS422 conversion module, a DC current transmitter, an industrial personal computer, a signal processing module, a D / A module and an electronic load. The method is clear in function layout, clear and reasonable in connection relation, capable of achieving convenient measurement, high in testing efficiency and high in practical application value.

Description

Technical Field

[0001] The invention relates to the technical field of detection devices, and in particular to a rotor anti-icing and de-icing equipment testing platform. Background Art

[0002] The rotor anti-icing controller is used to receive icing signals, as well as external atmospheric temperature and tail rotor internal temperature signals, control the heating of the main rotor and tail rotor, and provide working status parameters, icing alarm signals and fault information to the electromechanical management computer. This type of rotor anti-icing controller needs to be tested for anti-icing control functions, fault alarms and other performance tests during assembly and acceptance. At present, the performance test of this series of products is completed by DC power supply, signal generator, tester, digital multimeter, resistance box and other equipment. During the test, the operator inputs signals to the product by turning certain switches on the tester, and judges whether the product test is qualified by the indicator light status on the tester and the product feedback data. Since the product status is different under each test item, the operator needs to repeatedly turn the switch on the front panel of the tester, and the timing and other tasks are all done manually. The test data needs to be recorded manually. The test time for each product is as long as 1.5 hours. Therefore, the traditional test method has the disadvantages of long test process, complicated operation and untraceable test data. The test platform can be used to complete automatic testing of the entire product process, avoiding the problem of workers copying incorrect data when manually recording data. The test platform can reduce the testing time of the original product from about 1.5 hours to about 40 minutes, and the test platform can measure two products of the same model at the same time. Summary of the invention

[0003] The purpose of the present invention is to provide a rotor anti-icing equipment test platform. The control test platform can complete the anti-icing control function, fault alarm and other performance tests of the tested product and store and output reports, thereby improving test efficiency and reducing labor costs.

[0004] The technical solution of the present invention is:

[0005] Provided is a rotor anti-icing equipment test platform; including a power conversion module, a programmable DC power supply, a PLC module, an RS422 conversion module, a DC current transmitter, an industrial computer, a signal processing module, a D / A module and an electronic load;

[0006] The programmable DC power supply receives 220V power supply and outputs +28V power supply; the power conversion module provides +15V power supply;

[0007] The industrial computer is integrated with acquisition card, digital IO card and signal generator;

[0008] The PLC module has multiple groups of input terminals and multiple groups of output terminals and two 24V power supply outputs; one group of input terminals of the PLC receives a ground-open signal and processes the ground-open signal; the first group of output terminals of the PLC module outputs a ground-open signal, and the second group of output terminals of the PLC module is connected to an electronic load to control the output of the electronic load; the PLC module has a D / A terminal, and outputs multiple induction voltages through the D / A module; the PLC module outputs +24V power to a DC current transmitter;

[0009] The 8-channel RS422 conversion module, electronic load, PLC module and industrial computer all communicate via USB cable; the 8-channel RS422 conversion module performs signal conversion between the industrial computer and the device being tested;

[0010] The DC current transmitter receives the current of the device under test, converts the received current into a voltage signal and then outputs it to the acquisition card;

[0011] The electronic load is used to simulate the atmospheric temperature sensor, and the second output terminal of the PLC module provides a voltage signal to the device under test through the electronic load;

[0012] The signal processing module has a ground-open signal input terminal, a voltage signal input terminal, a timing signal input terminal, a 4-way frequency signal input terminal, a feedback timing input terminal, a 4-way frequency signal output terminal, a timing signal output terminal and a voltage output terminal. The power conversion module supplies power to the signal processing module; a group of input terminals of the signal processing module are used to receive ground-open signals, a group of input terminals are used to receive voltage signals, the heating timing and feedback timing are transferred by the signal processing module and then collected or output by the digital IO card, the 4-way frequency signals are transferred by the signal processing module and then output, a group of output terminals are used to output voltage signals and then collected by the collection card, and a group of output terminals are used to output ground-open signals and then collected by the digital IO card.

[0013] Furthermore, the functions of the signal processing module are: receiving multiple ground-open signals, receiving timing signals, receiving 4-channel frequency signals from the signal generator, outputting 4-channel frequency signals, outputting ground-open signals to the acquisition card and the digital IO card, and sending timing signals to the digital IO card and receiving feedback timing signals at the same time as the digital IO card; the signal processing module is powered by ±15V provided by the power conversion module and +28V provided by the programmable DC power supply.

[0014] Furthermore, the 28V / 15V voltage output by the device under test is divided and processed, and then collected by the acquisition card.

[0015] Furthermore, the timing signal is received through the IO port of the digital IO card and fed back.

[0016] Furthermore, the acquisition card acquires the voltage of the DC current transmitter and the output voltage of the signal processing module.

[0017] Furthermore, the digital IO card is used to collect the ground-opening signal and timing signal output by the product, and can output the feedback timing to the device under test after circuit conversion.

[0018] The advantages and beneficial effects of the present invention are as follows: the present invention has a clear functional layout, a clear and reasonable connection relationship, can realize convenient measurement, has high test efficiency, and has great practical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the test platform of the present invention; DETAILED DESCRIPTION

[0020] The disclosed examples will be more fully described with reference to the accompanying drawings, in which some (but not all) of the disclosed examples are shown. In fact, many different examples may be described and these examples should not be construed as limited to the examples set forth herein. Instead, these examples are described so that this disclosure will be thorough and complete and will fully convey the scope of the disclosure to those skilled in the art.

[0021] See also Figure 1 , providing a rotor anti-icing equipment test platform; including a power conversion module, a programmable DC power supply, a PLC module, an RS422 conversion module, a DC current transmitter, an industrial computer, a signal processing module, a D / A module and an electronic load;

[0022] The programmable DC power supply receives 220V power supply and outputs +28V power supply; the power conversion module provides +15V power supply;

[0023] The industrial computer is integrated with acquisition card, digital IO card and signal generator;

[0024] The PLC module has multiple groups of input terminals and multiple groups of output terminals and two 24V power supply outputs; one group of input terminals of the PLC receives a ground-open signal and processes the ground-open signal; the first group of output terminals of the PLC module outputs a ground-open signal, and the second group of output terminals of the PLC module is connected to an electronic load to control the output of the electronic load; the PLC module has a D / A terminal, and outputs multiple induction voltages through the D / A module; the PLC module outputs +24V power to a DC current transmitter;

[0025] The 8-channel RS422 conversion module, electronic load, PLC module and industrial computer all communicate via USB cable; the 8-channel RS422 conversion module performs signal conversion between the industrial computer and the device being tested;

[0026] The DC current transmitter receives the current of the device under test, converts the received current into a voltage signal and then outputs it to the acquisition card;

[0027] The electronic load is used to simulate the atmospheric temperature sensor, and the second output terminal of the PLC module provides a voltage signal to the device under test through the electronic load;

[0028] The signal processing module has a ground-open signal input terminal, a voltage signal input terminal, a timing signal input terminal, a 4-way frequency signal input terminal, a feedback timing input terminal, a 4-way frequency signal output terminal, a timing signal output terminal and a voltage output terminal. The power conversion module supplies power to the signal processing module; a group of input terminals of the signal processing module are used to receive ground-open signals, a group of input terminals are used to receive voltage signals, the heating timing and feedback timing are transferred by the signal processing module and then collected or output by the digital IO card, the 4-way frequency signals are transferred by the signal processing module and then output, a group of output terminals are used to output voltage signals and then collected by the collection card, and a group of output terminals are used to output ground-open signals and then collected by the digital IO card.

[0029] The functions of the signal processing module are: receiving multi-channel ground-open signals, receiving timing signals, receiving 4-channel frequency signals from the signal generator, outputting 4-channel frequency signals, outputting ground-open signals to the acquisition card and the digital IO card, and sending timing signals to the digital IO card and receiving feedback timing signals at the same time as the digital IO card; the signal processing module is powered by ±15V provided by the power conversion module and +28V provided by the programmable DC power supply.

[0030] The description of different advantageous arrangements has been presented for purposes of illustration and description, but the description is not intended to be exclusive or limited to examples of the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. Additionally, different advantageous examples may describe different advantages over other advantageous examples. The selected example or examples are chosen and described in order to best illustrate the principles of the examples, the practical application, and to enable those of ordinary skill in the art to understand the disclosure with various examples with various modifications suitable for the particular use contemplated.

Claims

1. A rotor anti-icing equipment test platform, characterized by: Including power conversion module, program-controlled DC power supply, PLC module, RS422 conversion module, DC current transmitter, industrial computer, signal processing module, D / A module and electronic load; The programmable DC power supply receives 220V power supply and outputs +28V power supply; the power conversion module provides +15V power supply; The industrial computer is integrated with acquisition card, digital IO card and signal generator; The PLC module has multiple groups of input terminals and multiple groups of output terminals and two 24V power supply outputs; one group of input terminals of the PLC receives a ground-open signal and processes the ground-open signal; the first group of output terminals of the PLC module outputs a ground-open signal, and the second group of output terminals of the PLC module is connected to an electronic load to control the output of the electronic load; the PLC module has a D / A terminal, and outputs multiple induction voltages through the D / A module; the PLC module outputs +24V power to a DC current transmitter; The 8-channel RS422 conversion module, electronic load, PLC module and industrial computer all communicate via USB cable; the 8-channel RS422 conversion module performs signal conversion between the industrial computer and the device being tested; The DC current transmitter receives the current of the device under test, converts the received current into a voltage signal and then outputs it to the acquisition card; The electronic load is used to simulate the atmospheric temperature sensor, and the second output terminal of the PLC module provides a voltage signal to the device under test through the electronic load; The signal processing module has a ground-open signal input terminal, a voltage signal input terminal, a timing signal input terminal, a 4-way frequency signal input terminal, a feedback timing input terminal, a 4-way frequency signal output terminal, a timing signal output terminal and a voltage output terminal. The power conversion module supplies power to the signal processing module; a group of input terminals of the signal processing module are used to receive ground-open signals, a group of input terminals are used to receive voltage signals, the heating timing and feedback timing are transferred by the signal processing module and then collected or output by the digital IO card, the 4-way frequency signals are transferred by the signal processing module and then output, a group of output terminals are used to output voltage signals and then collected by the collection card, and a group of output terminals are used to output ground-open signals and then collected by the digital IO card.

2. A rotor anti-icing equipment test platform according to claim 1, characterized in that: The functions of the signal processing module are: receiving multi-channel ground-open signals, receiving timing signals, receiving 4-channel frequency signals from the signal generator, outputting 4-channel frequency signals, outputting ground-open signals to the acquisition card and the digital IO card, and sending timing signals to the digital IO card and receiving feedback timing signals at the same time as the digital IO card; the signal processing module is powered by ±15V provided by the power conversion module and +28V provided by the programmable DC power supply.

3. A rotor anti-icing equipment test platform according to claim 1, characterized in that: The 28V / 15V voltage output by the device under test is divided and then collected by the acquisition card.

4. A rotor anti-icing equipment test platform as claimed in claim 1, characterized in that: The timing signal is received and fed back through the IO port of the digital IO card.

5. A rotor anti-icing equipment test platform according to claim 1, characterized in that: The acquisition card acquires the voltage of the DC current transmitter and the output voltage of the signal processing module.

6. A rotor anti-icing equipment test platform according to claim 1, characterized in that: The digital IO card is used to collect the ground-opening signal and timing signal output by the product, and can output the feedback timing to the device under test after circuit conversion.

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