A variable frequency air conditioner automatic detection system and method

Abstract

The present invention discloses a variable frequency air conditioner automatic detection system and method, the system includes a power module, an internal unit test module, an external unit test module, a single chip control module and a display module; the internal unit test module, the external unit test module, the single chip control module and the display module are all electrically connected to the power module, the internal unit test module and the external unit test module are all electrically connected to the single chip control module, and the display module is electrically connected to the single chip control module. The present invention solves the problem that the traditional method of testing the variable frequency air conditioner by building a complex variable frequency air conditioner test bench often requires a large physical space and takes a long time for layout and debugging, resulting in increased testing costs and difficulty; and the test process often relies on accurate measurement of the cooling effect, which requires the test bench to run for a long time to test, resulting in reduced overall test efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of variable frequency air conditioner testing, and in particular to a variable frequency air conditioner automatic detection system and method. Background Art

[0002] In the current field of variable frequency air conditioner testing, the commonly used method is to build a dedicated variable frequency air conditioner test bench, which integrates comprehensive detection functions for the indoor and outdoor units of the air conditioner. However, this testing method faces several significant challenges in practical applications. First, due to the complexity of the variable frequency air conditioner system, it consists of two independent but interrelated parts, the indoor unit and the outdoor unit of the air conditioner. Therefore, when building the test environment, it is necessary to consider the installation and connection of the indoor unit and the outdoor unit at the same time, which often requires a large physical space and takes a long time for layout and debugging, increasing the cost and difficulty of testing. Secondly, the functional testing of the control board and key components of the variable frequency air conditioner, such as the compressor, AC and DC fans, often relies on the precise measurement of the cooling effect. This testing process not only requires the test bench to have high-precision temperature and pressure control capabilities, but also requires long-term operation to simulate actual usage scenarios, so as to accurately determine whether each component is damaged or has performance degradation. This test method that relies on long-term operation directly leads to a significant increase in power consumption and reduces the overall efficiency of the test. Summary of the invention

[0003] In view of the above-mentioned defects, the present invention proposes an automatic detection system and method for variable frequency air conditioners, aiming to solve the problem that the traditional method of detecting variable frequency air conditioners by building a complex variable frequency air conditioner test bench often requires occupying a large physical space and consumes a long time for layout and debugging, resulting in increased testing costs and difficulty; and the testing process often relies on accurate measurement of the cooling effect, which requires the test bench to run for a long time to perform the test, resulting in reduced overall test efficiency.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] An automatic detection system for variable frequency air conditioner, comprising a power supply module, an internal unit test module, an external unit test module, a single chip control module and a display module;

[0006] The internal machine test module, the external machine test module, the single-chip control module and the display module are all electrically connected to the power module, and the power module is used to supply power to the internal machine test module, the external machine test module, the single-chip control module and the display module;

[0007] The internal unit test module is used to test the internal unit control board of the tested variable frequency air conditioner to obtain first test data, and to test the internal unit component group of the tested variable frequency air conditioner to obtain second test data; the external unit test module is used to test the external unit control board of the tested variable frequency air conditioner to obtain third test data, and to test the external unit component group of the tested variable frequency air conditioner to obtain fourth test data;

[0008] The internal unit test module and the external unit test module are both electrically connected to the single-chip control module, and the display module is electrically connected to the single-chip control module. The single-chip control module is used to receive and analyze first test data, second test data, third test data and fourth test data to obtain performance test results of the variable frequency air conditioner, and the display module is used to display the performance test results of the variable frequency air conditioner.

[0009] Preferably, a first power switch module is provided on the internal unit test module, and a second power switch module is provided on the external unit test module;

[0010] When only the indoor unit control panel and the indoor unit component group of the tested variable frequency air conditioner need to be tested, the first power switch module is turned on and the second power switch module is turned off;

[0011] When only the external unit control board and the external unit component group of the tested variable frequency air conditioner need to be tested, the first power switch module is turned off and the second power switch module is turned on.

[0012] Preferably, the internal unit test module includes a first adaptive signal calibration submodule, and the external unit test module includes a second adaptive signal calibration submodule;

[0013] The first adaptive signal calibration submodule is used to detect the quality of the test signal in the indoor unit control board and the indoor unit component group of the tested variable frequency air conditioner in real time, and automatically adjust the amplitude, frequency and phase of the test signal in the indoor unit control board and the indoor unit component group of the tested variable frequency air conditioner;

[0014] The second adaptive signal calibration submodule is used to detect the quality of the test signal in the outdoor unit control board and outdoor unit component group of the tested variable frequency air conditioner in real time, and automatically adjust the amplitude, frequency and phase of the test signal in the outdoor unit control board and outdoor unit component group of the tested variable frequency air conditioner.

[0015] Preferably, the single chip control module includes a prediction analysis submodule, and the prediction analysis submodule includes:

[0016] An acquisition subunit, used to acquire historical test data of an indoor unit control board, an outdoor unit control board, an indoor unit component group, and an outdoor unit component group of the tested variable frequency air conditioner;

[0017] Constructing subunits for constructing process neural network PNN models;

[0018] A training subunit, used to train the PNN model using historical test data of the internal unit control board, the external unit control board, the internal unit component group and the external unit component group of the tested variable frequency air conditioner to obtain a trained PNN model;

[0019] The performance prediction subunit is used to obtain the current test data of the indoor control board, outdoor control board, indoor component group and outdoor component group of the tested variable frequency air conditioner, and input it into the trained PNN model for performance prediction, and output the performance change trend of the indoor control board, outdoor control board, indoor component group and outdoor component group of the tested variable frequency air conditioner in the future period of time.

[0020] Another aspect of the present application provides a variable frequency air conditioner automatic detection method, comprising the following steps:

[0021] Step S1: the internal unit control board and the internal unit component group of the variable frequency air conditioner under test are electrically connected to the internal unit test module, and the external unit control board and the external unit component group of the variable frequency air conditioner under test are electrically connected to the external unit test module;

[0022] Step S2: starting the power module, the power module supplies power to the internal unit test module, the external unit test module, the single chip control module and the display module;

[0023] Step S3: the internal unit test module tests the internal unit control board of the tested variable frequency air conditioner to obtain first test data, and tests the internal unit component group of the tested variable frequency air conditioner to obtain second test data; the external unit test module tests the external unit control board of the tested variable frequency air conditioner to obtain third test data, and tests the external unit component group of the tested variable frequency air conditioner to obtain fourth test data;

[0024] Step S4: transmitting the first test data, the second test data, the third test data and the fourth test data to the single-chip control module, and the single-chip control module analyzes the first test data, the second test data, the third test data and the fourth test data to obtain the performance test result of the variable frequency air conditioner;

[0025] Step S5: transmitting the performance test result of the variable frequency air conditioner to the display module, and the display module visually displays the performance test result of the variable frequency air conditioner.

[0026] Preferably, in step S2, the following steps are also included:

[0027] When only the internal unit control board and the internal unit component group of the variable frequency air conditioner under test need to be tested, the power supply module supplies power to the internal unit test module and stops supplying power to the external unit test module;

[0028] When only the external unit control board and the external unit component group of the tested variable frequency air conditioner need to be tested, the power supply module supplies power to the external unit test module and stops supplying power to the internal unit test module.

[0029] Preferably, in step S3, during the process in which the internal unit test module tests the internal unit control board and the internal unit component group of the variable frequency air conditioner under test, the following steps are also included:

[0030] Real-time detection of the quality of the test signal in the internal unit control board and the internal unit component group of the tested variable frequency air conditioner, and automatic adjustment of the amplitude, frequency and phase of the test signal in the internal unit control board and the internal unit component group of the tested variable frequency air conditioner;

[0031] In the process of the outdoor unit test module testing the outdoor unit control board and outdoor unit component group of the tested variable frequency air conditioner, the following steps are also included:

[0032] The quality of the test signal in the external unit control board and the external unit component group of the tested variable frequency air conditioner is detected in real time, and the amplitude, frequency and phase of the test signal in the external unit control board and the external unit component group of the tested variable frequency air conditioner are automatically adjusted.

[0033] Preferably, in step S4, the following steps are also included:

[0034] Obtain historical test data of the indoor unit control board, outdoor unit control board, indoor unit component group and outdoor unit component group of the tested variable frequency air conditioner;

[0035] Construct a process neural network PNN model;

[0036] The PNN model is trained using historical test data of an indoor unit control board, an outdoor unit control board, an indoor unit component group, and an outdoor unit component group of the tested variable frequency air conditioner to obtain a trained PNN model;

[0037] By obtaining the current test data of the indoor control board, outdoor control board, indoor component group and outdoor component group of the tested variable frequency air conditioner, and inputting them into the trained PNN model for performance prediction, the performance change trend of the indoor control board, outdoor control board, indoor component group and outdoor component group of the tested variable frequency air conditioner in the future period of time is output.

[0038] The technical solution provided by the embodiments of the present application may have the following beneficial effects:

[0039] In this solution, the power module, the internal unit test module, the external unit test module, the single-chip control module and the display module cooperate with each other to achieve the performance test of the internal unit control board, the internal unit component group, the external unit control board and the external unit component group of the variable frequency air conditioner under test. This solution does not need to spend a long time to build a complex variable frequency air conditioner test bench. It only needs to electrically connect the internal unit test module with the internal unit control board and the internal unit component group of the variable frequency air conditioner under test, and the external unit test module with the external unit control board and the external unit component group of the variable frequency air conditioner under test, and analyze the test data of the internal unit test module and the external unit test module uniformly through the single-chip control module, and finally display the analysis results intuitively through the display module. This method greatly simplifies the test process, reduces the test cost and difficulty, and improves the efficiency and accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of an automatic detection system for variable frequency air conditioners.

[0041] Among them, 1. power module; 2. internal unit test module; 3. external unit test module; 4. single-chip microcomputer control module; 5. display module; 21. first power switch module; 22. first adaptive signal calibration submodule; 31. second power switch module; 32. second adaptive signal calibration submodule; 6. tested variable frequency air conditioner; 61. internal unit control board of tested variable frequency air conditioner; 62. external unit control board of tested variable frequency air conditioner; 63. internal unit parts group of tested variable frequency air conditioner; 64. external unit parts group of tested variable frequency air conditioner; 41. prediction and analysis submodule; 411. acquisition subunit; 412. construction subunit; 413. training subunit; 414. performance prediction subunit. DETAILED DESCRIPTION

[0042] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0043] A variable frequency air conditioner automatic detection system, comprising a power supply module 1, an indoor unit test module 2, an outdoor unit test module 3, a single chip control module 4 and a display module 5;

[0044] The internal machine test module 2, the external machine test module 3, the single-chip control module 4 and the display module 5 are all electrically connected to the power module 1, and the power module 1 is used to supply power to the internal machine test module 2, the external machine test module 3, the single-chip control module 4 and the display module 5;

[0045] The internal unit test module 2 is used to test the internal unit control board 61 of the tested variable frequency air conditioner 6 to obtain the first test data, and to test the internal unit component group 63 of the tested variable frequency air conditioner 6 to obtain the second test data; the external unit test module 3 is used to test the external unit control board 62 of the tested variable frequency air conditioner 6 to obtain the third test data, and to test the external unit component group 64 of the tested variable frequency air conditioner 6 to obtain the fourth test data;

[0046] The indoor unit test module 2 and the outdoor unit test module 3 are both electrically connected to the single-chip control module 4, and the display module 5 is electrically connected to the single-chip control module 4. The single-chip control module 4 is used to receive and analyze the first test data, the second test data, the third test data and the fourth test data to obtain the performance test results of the variable frequency air conditioner, and the display module 5 is used to display the performance test results of the variable frequency air conditioner.

[0047] This scheme is a variable frequency air conditioning automatic detection system, such as Figure 1As shown, when it is necessary to perform a functional test on the tested variable frequency air conditioner 6, first, the internal unit control board 61 and the internal unit component group 63 of the tested variable frequency air conditioner 6 are electrically connected to the internal unit test module 2, and the external unit control board 62 and the external unit component group 64 of the tested variable frequency air conditioner 6 are electrically connected to the external unit test module 3. Then, the power module 2 is started, and the power module 2 provides power to the internal unit test module 2, the external unit test module 3, the single chip control module 4 and the display module 5, so that the internal unit test module 2, the external unit test module 3, the single chip control module 4 and the display module 5 can operate normally. In this embodiment, the indoor unit component group 63 of the tested variable frequency air conditioner 6 includes a temperature and humidity sensor, a gas sensor, a stepper motor and an indoor unit AC and DC motor, and the outdoor unit component group 64 of the tested variable frequency air conditioner 6 includes an electronic expansion valve, a four-way valve, a compressor and an outdoor unit AC and DC motor. The indoor unit test module 2 tests the indoor unit control board 61 of the tested variable frequency air conditioner 6 to obtain first test data, and the first test data includes the control signal output of the indoor unit control board and the feedback data of the indoor unit component group. At the same time, the indoor unit component group 63 of the tested variable frequency air conditioner 6 is tested to obtain second test data, and the second test data includes the temperature and humidity of the temperature and humidity sensor, the gas concentration of the gas sensor, the stepping angle of the stepper motor and the current of the outdoor unit AC and DC motor, and the first test data and the second test data are transmitted to the single-chip control module 4. The external unit test module 3 tests the external unit control board 62 of the tested variable frequency air conditioner 6 to obtain the third test data, which includes the control signal output of the external unit control board and the feedback data of the external unit component group. At the same time, the external unit component group 64 of the tested variable frequency air conditioner 6 is tested to obtain the fourth test data, which includes the opening of the electronic expansion valve, the switching state of the four-way valve, the current of the compressor and the current of the external unit AC and DC motor, and transmits the third test data and the fourth test data to the single chip control module 4. Then, the single chip control module 4 analyzes the first test data, the second test data, the third test data and the fourth test data to obtain the performance test result of the variable frequency air conditioner. In this embodiment, the performance test result of the variable frequency air conditioner is the performance curve diagram of the internal unit control board, the internal unit component group, the external unit control board and the external unit component group of the variable frequency air conditioner. Finally, the display module 5 visualizes the performance test result of the variable frequency air conditioner so that the inspector can intuitively understand the performance of the variable frequency air conditioner.

[0048] In this solution, the power module 1, the internal unit test module 2, the external unit test module 3, the single-chip control module 4 and the display module 5 cooperate with each other to realize the performance test of the internal unit control board 61, the internal unit component group 63, the external unit control board 62 and the external unit component group 64 of the tested variable frequency air conditioner 6. This solution does not need to spend a long time to build a complex variable frequency air conditioner test bench. It only needs to electrically connect the internal unit test module 2 with the internal unit control board 61 and the internal unit component group 63 of the tested variable frequency air conditioner 6, and the external unit test module 3 with the external unit control board 62 and the external unit component group 64 of the tested variable frequency air conditioner 6, and analyze the test data of the internal unit test module 2 and the external unit test module 3 uniformly through the single-chip control module 4, and finally display the analysis results intuitively through the display module 5. This method greatly simplifies the test process, reduces the test cost and difficulty, and improves the efficiency and accuracy of the test.

[0049] Preferably, a first power switch module 21 is provided on the indoor unit test module 2, and a second power switch module 31 is provided on the outdoor unit test module 3; when only the indoor unit control board 61 and the indoor unit component group 63 of the tested variable frequency air conditioner 6 need to be tested, the first power switch module 21 is turned on and the second power switch module 31 is turned off; when only the outdoor unit control board 62 and the outdoor unit component group 64 of the tested variable frequency air conditioner 6 need to be tested, the first power switch module 21 is turned off and the second power switch module 31 is turned on.

[0050] In this embodiment, Figure 1 As shown, by selectively turning on or off the first power switch module 21 and the second power switch module 31, the power supply status of the power module 1 to the indoor unit test module 2 and the outdoor unit test module 3 is controlled, thereby realizing separate testing of the indoor unit and outdoor unit of the variable frequency air conditioner, thereby improving the flexibility and energy saving of the system.

[0051] Preferably, the indoor unit test module 2 includes a first adaptive signal calibration submodule 22, and the outdoor unit test module 3 includes a second adaptive signal calibration submodule 32; the first adaptive signal calibration submodule 22 is used to detect the quality of the test signal in the indoor unit control board 61 and the indoor unit component group 63 of the tested variable frequency air conditioner 6 in real time, and automatically adjust the amplitude, frequency and phase of the test signal in the indoor unit control board 61 and the indoor unit component group 63 of the tested variable frequency air conditioner 6; the second adaptive signal calibration submodule 32 is used to detect the quality of the test signal in the outdoor unit control board 62 and the outdoor unit component group 64 of the tested variable frequency air conditioner 6 in real time, and automatically adjust the amplitude, frequency and phase of the test signal in the outdoor unit control board 62 and the outdoor unit component group 64 of the tested variable frequency air conditioner 6.

[0052] In this embodiment, Figure 1 As shown, by setting the first adaptive signal calibration submodule 22 and the second adaptive signal calibration submodule 32, when an abnormality is detected in the test signals in the indoor unit control board 61, the indoor unit component group 63, the outdoor unit control board 62 and the outdoor unit component group 64 of the tested variable frequency air conditioner 6, the amplitude, frequency and phase of these test signals can be automatically adjusted to ensure the accuracy and reliability of the first test data, the second test data, the third test data and the fourth test data.

[0053] Preferably, the single-chip control module 4 includes a prediction analysis submodule 41, and the prediction analysis submodule 41 includes: an acquisition subunit 411, which is used to acquire historical test data of the internal unit control board 61, the external unit control board 62, the internal unit component group 63 and the external unit component group 64 of the tested variable frequency air conditioner 6; a construction subunit 412, which is used to construct a process neural network PNN model; a training subunit 413, which is used to use the internal unit control board 61, the external unit control board 62, the internal unit component group 63 and the external unit component group 64 of the tested variable frequency air conditioner 6 4 is used to train the PNN model to obtain the trained PNN model; the performance prediction subunit 414 is used to obtain the current test data of the indoor unit control board 61, the outdoor unit control board 62, the indoor unit component group 63 and the outdoor unit component group 64 of the tested variable frequency air conditioner 6, and input the current test data into the trained PNN model for performance prediction, and output the performance change trend of the indoor unit control board 61, the outdoor unit control board 62, the indoor unit component group 63 and the outdoor unit component group 64 of the tested variable frequency air conditioner 6 in the future period of time.

[0054] In this embodiment, Figure 1 As shown, by using the process neural network model to predict the performance change trend of the internal control board 61, the external control board 62, the internal component group 63 and the external component group 64 of the tested variable frequency air conditioner 6, it is possible to discover potential failure risks in advance and send early warning information to the inspector. It is further explained that the input signal, connection weight and activation threshold of the process neural network can be a time-varying function or even a multivariate function, which can simultaneously reflect the spatial aggregation effect and time accumulation effect of the time-varying input signal, and is very suitable for predicting performance degradation with time series characteristics. For complex and dynamically changing processes such as variable frequency air conditioner performance degradation, the process neural network can better capture its characteristics that change over time.

[0055] Another aspect of the present application provides a variable frequency air conditioner automatic detection method, comprising the following steps:

[0056] Step S1: the internal unit control board 61 and the internal unit component group 63 of the tested variable frequency air conditioner 6 are electrically connected to the internal unit test module 2, and the external unit control board 62 and the external unit component group 64 of the tested variable frequency air conditioner 6 are electrically connected to the external unit test module 3;

[0057] Step S2: starting the power supply module 1, the power supply module 1 supplies power to the internal unit test module 2, the external unit test module 3, the single chip control module 4 and the display module 5;

[0058] Step S3: the indoor unit test module 2 tests the indoor unit control board 61 of the tested variable frequency air conditioner 6 to obtain first test data, and tests the indoor unit component group 63 of the tested variable frequency air conditioner 6 to obtain second test data; the outdoor unit test module 3 tests the outdoor unit control board 62 of the tested variable frequency air conditioner 6 to obtain third test data, and tests the outdoor unit component group 64 of the tested variable frequency air conditioner 6 to obtain fourth test data;

[0059] Step S4: transmitting the first test data, the second test data, the third test data and the fourth test data to the single chip control module 4, and the single chip control module 4 analyzes the first test data, the second test data, the third test data and the fourth test data to obtain the performance test result of the variable frequency air conditioner;

[0060] Step S5: Transmitting the performance test result of the variable frequency air conditioner to the display module 5, and the display module 5 visually displays the performance test result of the variable frequency air conditioner.

[0061] The present scheme provides an automatic detection method for variable frequency air conditioners. By executing the above steps, the performance test of the internal control board 61, the internal component group 63, the external control board 62 and the external component group 64 of the variable frequency air conditioner 6 is realized. The present scheme does not need to spend a long time to build a complex variable frequency air conditioner test bench. It only needs to electrically connect the internal test module 2 with the internal control board 61 and the internal component group 63 of the variable frequency air conditioner 6 under test, and the external test module 3 with the external control board 62 and the external component group 64 of the variable frequency air conditioner 6 under test, and uniformly analyze the test data of the internal test module 2 and the external test module 3 through the single chip control module 4, and finally intuitively display the analysis results through the display module 5. This method greatly simplifies the test process, reduces the test cost and difficulty, and improves the efficiency and accuracy of the test.

[0062] Preferably, step S2 also includes the following steps: when only the indoor unit control board 61 and the indoor unit component group 63 of the tested variable frequency air conditioner 6 need to be tested, the power module 1 supplies power to the indoor unit test module 2 and stops supplying power to the outdoor unit test module 3; when only the outdoor unit control board 62 and the outdoor unit component group 64 of the tested variable frequency air conditioner 6 need to be tested, the power module 1 supplies power to the outdoor unit test module 3 and stops supplying power to the indoor unit test module 2.

[0063] In this embodiment, the power supply module 1 can selectively supply power to the indoor unit test module 2 or the outdoor unit test module 3, thereby realizing separate testing of the indoor unit and outdoor unit of the variable frequency air conditioner, thereby improving the flexibility and energy saving of the system.

[0064] Preferably, in step S3, while the indoor unit test module 2 is testing the indoor unit control board 61 and the indoor unit component group 63 of the tested variable frequency air conditioner 6, the following steps are also included: real-time detection of the quality of the test signal in the indoor unit control board 61 and the indoor unit component group 63 of the tested variable frequency air conditioner 6, and automatic adjustment of the amplitude, frequency and phase of the test signal in the indoor unit control board 61 and the indoor unit component group 63 of the tested variable frequency air conditioner 6; while the outdoor unit test module 3 is testing the outdoor unit control board 62 and the outdoor unit component group 64 of the tested variable frequency air conditioner 6, the following steps are also included: real-time detection of the quality of the test signal in the outdoor unit control board 62 and the outdoor unit component group 64 of the tested variable frequency air conditioner 6, and automatic adjustment of the amplitude, frequency and phase of the test signal in the outdoor unit control board 62 and the outdoor unit component group 64 of the tested variable frequency air conditioner 6.

[0065] In this embodiment, when an abnormality is detected in the test signals in the indoor control board 61, the indoor component group 63, the outdoor control board 62 and the outdoor component group 64 of the tested variable frequency air conditioner 6, the amplitude, frequency and phase of these test signals can be automatically adjusted to ensure the accuracy and reliability of the first test data, the second test data, the third test data and the fourth test data.

[0066] Preferably, in step S4, the following steps are also included: obtaining historical test data of the indoor control board 61, outdoor control board 62, indoor component group 63 and outdoor component group 64 of the tested variable frequency air conditioner 6; constructing a process neural network PNN model; training the PNN model using the historical test data of the indoor control board 61, outdoor control board 62, indoor component group 63 and outdoor component group 64 of the tested variable frequency air conditioner 6 to obtain a trained PNN model; by obtaining the current test data of the indoor control board 61, outdoor control board 62, indoor component group 63 and outdoor component group 64 of the tested variable frequency air conditioner 6, and inputting it into the trained PNN model for performance prediction, the performance change trend of the indoor control board 61, outdoor control board 62, indoor component group 63 and outdoor component group 64 of the tested variable frequency air conditioner 6 in the future period of time is output.

[0067] In this embodiment, by using a process neural network model to predict the performance change trend of the indoor control board 61, outdoor control board 62, indoor component group 63 and outdoor component group 64 of the tested variable frequency air conditioner 6, potential fault risks can be discovered in advance and early warning information can be issued to the inspector.

[0068] In addition, each functional unit in each embodiment of the present invention may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0069] 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 of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An automatic detection system for variable frequency air conditioner, characterized in that: It includes a power module, an internal machine test module, an external machine test module, a single chip control module and a display module; The internal machine test module, the external machine test module, the single-chip control module and the display module are all electrically connected to the power module, and the power module is used to supply power to the internal machine test module, the external machine test module, the single-chip control module and the display module; The internal unit test module is used to test the internal unit control board of the tested variable frequency air conditioner to obtain first test data, and to test the internal unit component group of the tested variable frequency air conditioner to obtain second test data; the external unit test module is used to test the external unit control board of the tested variable frequency air conditioner to obtain third test data, and to test the external unit component group of the tested variable frequency air conditioner to obtain fourth test data; The internal unit test module and the external unit test module are both electrically connected to the single-chip control module, and the display module is electrically connected to the single-chip control module. The single-chip control module is used to receive and analyze first test data, second test data, third test data and fourth test data to obtain performance test results of the variable frequency air conditioner, and the display module is used to display the performance test results of the variable frequency air conditioner.

2. The variable frequency air conditioner automatic detection system according to claim 1, characterized in that: A first power switch module is arranged on the internal unit test module, and a second power switch module is arranged on the external unit test module; When only the indoor unit control panel and the indoor unit component group of the tested variable frequency air conditioner need to be tested, the first power switch module is turned on and the second power switch module is turned off; When only the external unit control board and the external unit component group of the tested variable frequency air conditioner need to be tested, the first power switch module is turned off and the second power switch module is turned on.

3. The variable frequency air conditioner automatic detection system according to claim 1, characterized in that: The internal unit test module includes a first adaptive signal calibration submodule, and the external unit test module includes a second adaptive signal calibration submodule; The first adaptive signal calibration submodule is used to detect the quality of the test signal in the indoor unit control board and the indoor unit component group of the tested variable frequency air conditioner in real time, and automatically adjust the amplitude, frequency and phase of the test signal in the indoor unit control board and the indoor unit component group of the tested variable frequency air conditioner; The second adaptive signal calibration submodule is used to detect the quality of the test signal in the outdoor unit control board and outdoor unit component group of the tested variable frequency air conditioner in real time, and automatically adjust the amplitude, frequency and phase of the test signal in the outdoor unit control board and outdoor unit component group of the tested variable frequency air conditioner.

4. The variable frequency air conditioner automatic detection system according to claim 1, characterized in that: The single-chip control module includes a prediction analysis submodule, and the prediction analysis submodule includes: An acquisition subunit, used to acquire historical test data of an indoor unit control board, an outdoor unit control board, an indoor unit component group, and an outdoor unit component group of the tested variable frequency air conditioner; Constructing subunits for constructing process neural network PNN models; A training subunit, for training the PNN model using historical test data of an indoor unit control board, an outdoor unit control board, an indoor unit component group, and an outdoor unit component group of the tested variable frequency air conditioner to obtain a trained PNN model; The performance prediction subunit is used to obtain the current test data of the indoor control board, outdoor control board, indoor component group and outdoor component group of the tested variable frequency air conditioner, and input it into the trained PNN model for performance prediction, and output the performance change trend of the indoor control board, outdoor control board, indoor component group and outdoor component group of the tested variable frequency air conditioner in the future period of time.

5. An automatic detection method for variable frequency air conditioner, applied to the automatic detection system for variable frequency air conditioner as claimed in any one of claims 1 to 4, characterized in that: The following steps are involved: Step S1: the internal unit control board and the internal unit component group of the variable frequency air conditioner under test are electrically connected to the internal unit test module, and the external unit control board and the external unit component group of the variable frequency air conditioner under test are electrically connected to the external unit test module; Step S2: starting the power module, the power module supplies power to the internal unit test module, the external unit test module, the single chip control module and the display module; Step S3: the internal unit test module tests the internal unit control board of the tested variable frequency air conditioner to obtain first test data, and tests the internal unit component group of the tested variable frequency air conditioner to obtain second test data; the external unit test module tests the external unit control board of the tested variable frequency air conditioner to obtain third test data, and tests the external unit component group of the tested variable frequency air conditioner to obtain fourth test data; Step S4: transmitting the first test data, the second test data, the third test data and the fourth test data to the single-chip control module, and the single-chip control module analyzes the first test data, the second test data, the third test data and the fourth test data to obtain the performance test result of the variable frequency air conditioner; Step S5: transmitting the performance test result of the variable frequency air conditioner to the display module, and the display module visually displays the performance test result of the variable frequency air conditioner.

6. The automatic detection method for variable frequency air conditioner according to claim 1, characterized in that: In step S2, the following steps are also included: When only the internal unit control board and the internal unit component group of the variable frequency air conditioner under test need to be tested, the power supply module supplies power to the internal unit test module and stops supplying power to the external unit test module; When only the external unit control board and the external unit component group of the tested variable frequency air conditioner need to be tested, the power supply module supplies power to the external unit test module and stops supplying power to the internal unit test module.

7. The automatic detection method for variable frequency air conditioner according to claim 1, characterized in that: In step S3, during the process of the internal unit test module testing the internal unit control board and the internal unit component group of the tested variable frequency air conditioner, the following steps are also included: Real-time detection of the quality of the test signal in the internal unit control board and the internal unit component group of the tested variable frequency air conditioner, and automatic adjustment of the amplitude, frequency and phase of the test signal in the internal unit control board and the internal unit component group of the tested variable frequency air conditioner; In the process of the outdoor unit test module testing the outdoor unit control board and outdoor unit component group of the tested variable frequency air conditioner, the following steps are also included: The quality of the test signal in the external unit control board and the external unit component group of the tested variable frequency air conditioner is detected in real time, and the amplitude, frequency and phase of the test signal in the external unit control board and the external unit component group of the tested variable frequency air conditioner are automatically adjusted.

8. The automatic detection method for variable frequency air conditioner according to claim 1, characterized in that: In step S4, the following steps are also included: Obtain historical test data of the indoor unit control board, outdoor unit control board, indoor unit component group and outdoor unit component group of the tested variable frequency air conditioner; Construct a process neural network PNN model; The PNN model is trained using historical test data of an indoor unit control board, an outdoor unit control board, an indoor unit component group, and an outdoor unit component group of the tested variable frequency air conditioner to obtain a trained PNN model; By obtaining the current test data of the indoor control board, outdoor control board, indoor component group and outdoor component group of the tested variable frequency air conditioner, and inputting them into the trained PNN model for performance prediction, the performance change trend of the indoor control board, outdoor control board, indoor component group and outdoor component group of the tested variable frequency air conditioner in the future period of time is output.

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