CN113049287A - Air conditioner detection system and air conditioner detection method - Google Patents
Air conditioner detection system and air conditioner detection method Download PDFInfo
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- CN113049287A CN113049287A CN202110369306.4A CN202110369306A CN113049287A CN 113049287 A CN113049287 A CN 113049287A CN 202110369306 A CN202110369306 A CN 202110369306A CN 113049287 A CN113049287 A CN 113049287A
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- 238000001514 detection method Methods 0.000 title claims abstract description 49
- 238000012360 testing method Methods 0.000 claims abstract description 134
- 239000003507 refrigerant Substances 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 23
- 230000001133 acceleration Effects 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 238000004378 air conditioning Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013528 artificial neural network Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- General Physics & Mathematics (AREA)
- Air Conditioning Control Device (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention provides an air conditioner detection system and an air conditioner detection method, wherein the air conditioner detection system comprises: the flow test module is at least partially arranged on the refrigerant pipeline so as to monitor the flow of the refrigerant flowing into the air conditioner; the vibration testing module is arranged on the machine body of the air conditioner to monitor vibration information of the machine body; the noise testing module is opposite to the machine body, and at least part of the noise testing module is spaced from the machine body at a preset interval so as to monitor noise information of the air conditioner in the operation process; the flow testing module, the vibration testing module and the noise testing module are all connected with the control module, and the control module is used for controlling the flow testing module, the vibration testing module and the noise testing module to operate and collecting data monitored by the modules. The invention solves the problem of low air conditioner test precision in the prior art.
Description
Technical Field
The invention relates to the technical field of air conditioner detection, in particular to an air conditioner detection system and an air conditioner detection method.
Background
At present, the air conditioner becomes the household appliance essential in life, and in the air conditioner production process, each performance of the air conditioner can be detected, and the air conditioner can be delivered to the factory and sold after each performance of the air conditioner meets the conditions.
In the existing air conditioner test system, the control means mainly depends on monitoring pressure and temperature to carry out system function detection, indexes such as noise, vibration and the like are mainly carried out in a mode of manual touch and ear listening, the interference of human factors of the test method is large, the requirement of a consumer on product quality comfort cannot be met, and the test accuracy is low.
Disclosure of Invention
The invention mainly aims to provide an air conditioner detection system and an air conditioner detection method, and aims to solve the problem that the air conditioner in the prior art is low in test precision.
In order to achieve the above object, according to one aspect of the present invention, there is provided an air conditioner detecting system including: the flow test module is at least partially arranged on the refrigerant pipeline so as to monitor the flow of the refrigerant flowing into the air conditioner; the vibration testing module is arranged on the machine body of the air conditioner to monitor vibration information of the machine body; the noise testing module is opposite to the machine body, and at least part of the noise testing module is spaced from the machine body at a preset interval so as to monitor noise information of the air conditioner in the operation process; the flow testing module, the vibration testing module and the noise testing module are all connected with the control module, and the control module is used for controlling the flow testing module, the vibration testing module and the noise testing module to operate and collecting data monitored by the modules.
Further, the flow test module comprises: and the gas-liquid flow meter is arranged on the refrigerant pipeline and is used for detecting the flow of the refrigerant in the refrigerant pipeline.
Further, the vibration testing module includes: the air conditioner comprises a shell, a plurality of acceleration sensors and a plurality of air conditioner air.
Further, the noise test module includes: the sound receiver is arranged on the side of the machine body and opposite to the machine body, and a preset interval is reserved between the sound receiver and the machine body so as to receive sound waves emitted by the machine body.
Further, the sound receiver is a plurality of, and a plurality of sound receivers are arranged along the circumference interval of organism.
Further, the sound receiver is a microphone array.
Further, the air conditioner detection system further comprises: and the power test module is connected with both the power module and the control module of the air conditioner and is used for acquiring the current and/or voltage value of the air conditioner during operation.
Further, the air conditioner detection system further comprises: the pressure test module is arranged on a refrigerant pipeline of the air conditioner to detect the pressure of the refrigerant pipeline and is connected with the control module.
According to another aspect of the present invention, there is provided an air conditioner detection method, which is applied to the air conditioner detection system, and the air conditioner detection method includes: starting the air conditioner; monitoring the flow value of a refrigerant flowing into an air conditioner; monitoring vibration information of the air conditioner body, and analyzing the vibration information; and monitoring the noise information of the air conditioner body, and analyzing the noise information.
Further, the method for analyzing the vibration information comprises the following steps: filtering the broadband noise in the noise generated in the air conditioner testing process; and acquiring a displacement signal of the body.
Further, the method for analyzing the noise information comprises the following steps: collecting sound source information sent by a machine body; and comparing and analyzing the collected sound source information and the sample sound source information.
By applying the technical scheme of the invention, the air conditioner detection system comprises a flow test module, a vibration test module, a noise test module and a control module, wherein at least part of the flow test module is arranged on a refrigerant pipeline so as to monitor the flow of a refrigerant flowing into the air conditioner; the vibration testing module is arranged on the body of the air conditioner to monitor vibration information of the body; the noise testing module is opposite to the machine body, and at least part of the noise testing module is spaced from the machine body at a preset interval so as to monitor noise information of the air conditioner in the operation process; the flow test module, the vibration test module and the noise test module are all connected with the control module, and the control module is used for controlling the flow test module, the vibration test module and the noise test module to operate and collecting data monitored by the modules. The flow test module, the vibration test module and the noise test module are arranged to respectively detect the corresponding performances of the air conditioner, so that the air conditioner can be better detected comprehensively before leaving a factory, a better using effect is provided for a user, and the air conditioner test precision is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic configuration diagram of an embodiment of an air conditioner detection system according to the present invention;
FIG. 2 illustrates a flow chart of the operation of the noise test module of the air conditioner detection system according to the present invention; and
fig. 3 shows a flow chart of an algorithm of a vibration test module of the air conditioner detection system according to the present invention.
Wherein the figures include the following reference numerals:
1. a flow test module; 2. a vibration testing module; 3. a noise test module; 10. a gas-liquid flow meter; 20. an acceleration sensor; 30. a sound receiver; 4. a power test module; 5. a pressure testing module; 6. and a temperature testing module.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The present invention provides an air conditioner detection system, please refer to fig. 1 and fig. 3, including: the air conditioner comprises a flow test module 1, wherein at least part of the flow test module 1 is arranged on a refrigerant pipeline so as to monitor the flow of a refrigerant flowing into the air conditioner; the vibration testing module 2 is arranged on the machine body of the air conditioner to monitor vibration information of the machine body; the noise testing module 3 is opposite to the machine body, and at least part of the noise testing module 3 is spaced from the machine body at a preset interval so as to monitor noise information of the air conditioner in the operation process; the flow testing module 1, the vibration testing module 2 and the noise testing module 3 are all connected with the control module, and the control module is used for controlling the flow testing module 1, the vibration testing module 2 and the noise testing module 3 to operate and collecting data monitored by the modules.
The air conditioner detection system comprises a flow test module 1, a vibration test module 2, a noise test module 3 and a control module, wherein at least part of the flow test module 1 is arranged on a refrigerant pipeline so as to monitor the flow of a refrigerant flowing into an air conditioner; the vibration testing module 2 is arranged on the body of the air conditioner to monitor vibration information of the body; the noise test module 3 is opposite to the machine body, and at least part of the noise test module 3 is spaced from the machine body at a preset interval so as to monitor noise information of the air conditioner in the operation process; the flow test module 1, the vibration test module 2 and the noise test module 3 are all connected with the control module, and the control module is used for controlling the flow test module 1, the vibration test module 2 and the noise test module 3 to operate and collecting data monitored by the modules. The flow test module, the vibration test module and the noise test module are arranged to respectively detect the corresponding performances of the air conditioner, so that the air conditioner can be better detected comprehensively before leaving a factory, a better using effect is provided for a user, and the air conditioner test precision is improved.
In specific implementation, the flow test module 1 includes: and the gas-liquid flow meter 10 is arranged on the refrigerant pipeline, and detects the flow of the refrigerant in the refrigerant pipeline through the gas-liquid flow meter 10. The air conditioner detection system further comprises a refrigerant supply box, the refrigerant supply box is communicated with two air conditioners in the air conditioners through refrigerant pipelines, valves are arranged on the refrigerant pipelines, the on-off of the refrigerant pipelines is controlled through the valves, and the flow of the refrigerant supplied to the two air conditioners is detected through the gas-liquid flow meter 10, so that the operation effect of the air conditioner under the refrigerants with different flow rates is detected.
In the embodiment provided by the present invention, the vibration testing module 2 includes: the acceleration sensor 20 is provided on a casing of the air conditioner, and the plurality of acceleration sensors 20 are provided at intervals. As shown in fig. 3, firstly, the broadband filtering processing is performed on the background noise in the air conditioner operation process, then, the direct current and the band-pass filtering are performed, and then, the trend term is eliminated, that is, the interference of the vibration generated by the movement of a lathe or a transport vehicle in the test environment is eliminated, so as to obtain the processed acceleration signal; further, after eliminating the trend term, performing calculus to obtain a speed signal of the shell, then eliminating the trend term to obtain a processed speed signal, after eliminating the trend term, performing calculus to obtain a displacement signal, eliminating the trend term to obtain a processed displacement signal, and feeding back vibration information of the shell through an acceleration signal, the speed signal and the displacement signal of the shell. Specifically, the acceleration sensor 20 is attached to an indoor unit casing of the air conditioner and/or an outdoor unit casing of the air conditioner by magnetic force.
In order to facilitate noise monitoring of the air conditioner, the noise test module 3 includes: and a sound receiver 30 disposed at a side of the body and opposite to the body, the sound receiver 30 having a predetermined interval with the body to receive sound waves emitted from the body. Preferably, the sound receiver 30 is plural, and the plural sound receivers 30 are arranged at intervals along the circumferential direction of the machine body. The sound emitted by the air conditioner is collected by the plurality of sound receivers 30, and the noise information of the air conditioner is obtained through acoustic high-speed processing and operation (sound source separation, positioning and imaging).
In particular implementations, the sound receiver 30 is a microphone array.
In order to further monitor the performance of the air conditioner, the air conditioner detection system further comprises: and the power test module 4 is connected with both a power module and a control module of the air conditioner, and obtains the current and/or voltage value of the air conditioner during operation through the power test module 4. To monitor the operating power of the air conditioner.
In order to ensure the safety of the air conditioner, the air conditioner detection system further comprises: the pressure testing module 5 is arranged on a refrigerant pipeline of the air conditioner to detect the pressure of the refrigerant pipeline, and the pressure testing module 5 is connected with the control module. The pressure of the refrigerant pipeline of the air conditioner is detected so as to feed back the refrigerant pressure born by the refrigerant pipeline in the refrigeration system of the air conditioner, in the practical application process, the evaporator of the air conditioner is connected with the condenser of the air conditioner through the refrigerant pipeline, the refrigerant pipeline comprises an air suction pipeline and an exhaust pipeline, the pressure testing module is arranged on the exhaust pipeline, and preferably, the pressure testing module comprises a pressure sensor.
In the specific implementation process, the air conditioner detection system further comprises a temperature test module 6, a plurality of thermocouples are arranged on the air conditioner outdoor unit, namely the ambient temperature, the exhaust pipeline temperature and the suction pipeline temperature are obtained through the thermocouples, and the ambient temperature, the exhaust pipeline temperature and the suction pipeline temperature of the outdoor unit are monitored, so that the temperature of each point of the air conditioner outdoor unit is monitored.
The invention also provides an air conditioner detection method, which is suitable for the air conditioner detection system of the embodiment, and the air conditioner detection method comprises the following steps: starting the air conditioner; monitoring the flow value of a refrigerant flowing into an air conditioner; monitoring vibration information of the air conditioner body, and analyzing the vibration information; and monitoring the noise information of the air conditioner body, and analyzing the noise information. Therefore, before the air conditioner leaves a factory, each performance line of the air conditioner can be tested, and the experience effect of a user in the using process is improved.
The method for analyzing the vibration information comprises the following steps: filtering the broadband noise in the noise generated in the air conditioner testing process; and acquiring a displacement signal of the body. Specifically, as shown in fig. 3, a flow chart of vibration collection is that, first, a filtering process is performed on a broadband sound wave in noise generated by an air conditioner in a testing process, and then, direct current and band-pass filtering are performed, that is, noise which is not within a set frequency is filtered according to a set frequency in a system and an actually obtained noise frequency, for example, a filtering band-pass in the system is set to be 10 to 10 khz, and then, filtering which is lower than 10 hz or higher than 10 khz does not allow passing, and then a trend term is eliminated, that is, vibration interference caused by a punch or a forklift passing through a test bench in a production line environment is eliminated, so as to obtain a processed acceleration signal; further, after eliminating the trend term, performing calculus to obtain a speed signal of the shell, then eliminating the trend term to obtain a processed speed signal, after eliminating the trend term, performing calculus to obtain a displacement signal, eliminating the trend term to obtain a processed displacement signal, and feeding back vibration information of the shell through the displacement signal of the machine body.
The method for analyzing the noise information comprises the following steps: collecting sound source information sent by a machine body; and comparing and analyzing the collected sound source information and the sample sound source information. Specifically, the method comprises the steps of collecting and calibrating normalized and systematized samples, then comparing and analyzing detected sound source data with sample data, processing acoustic data facing an air conditioner and processing acoustic data based on an artificial neural network, automatically processing a detection flow facing the air conditioner to obtain an automatic detection result, correcting accumulated sample data and calibration according to the detection result, and training and optimizing a detection model until the accumulated sample data and the calibration are compared with the sound wave of the next air conditioner.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the air conditioner detection system comprises a flow test module 1, a vibration test module 2, a noise test module 3 and a control module, wherein at least part of the flow test module 1 is arranged on a refrigerant pipeline so as to monitor the flow of a refrigerant flowing into an air conditioner; the vibration testing module 2 is arranged on the body of the air conditioner to monitor vibration information of the body; the noise test module 3 is opposite to the machine body, and at least part of the noise test module 3 is spaced from the machine body at a preset interval so as to monitor noise information of the air conditioner in the operation process; the flow test module 1, the vibration test module 2 and the noise test module 3 are all connected with the control module, and the control module is used for controlling the flow test module 1, the vibration test module 2 and the noise test module 3 to operate and collecting data monitored by the modules. The flow test module, the vibration test module and the noise test module are arranged to respectively detect the corresponding performances of the air conditioner, so that the air conditioner can be better detected comprehensively before leaving a factory, a better using effect is provided for a user, and the air conditioner test precision is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. An air conditioner detection system, comprising:
the flow testing module (1), at least part of the flow testing module (1) is set on the refrigerant pipeline, so as to monitor the flow of the refrigerant flowing into the air conditioner;
the vibration testing module (2) is arranged on the body of the air conditioner to monitor vibration information of the body;
the noise testing module (3), the noise testing module (3) is opposite to the machine body, at least part of the noise testing module (3) has a preset interval with the machine body, so as to monitor the noise information of the air conditioner in the operation process;
the flow testing module (1), the vibration testing module (2) and the noise testing module (3) are connected with the control module, and the control module is used for controlling the flow testing module (1), the vibration testing module (2) and the noise testing module (3) to run and collecting data monitored by the modules.
2. The air conditioner detection system according to claim 1, wherein the flow test module (1) comprises:
and the gas-liquid flow meter (10) is arranged on the refrigerant pipeline, and detects the flow rate of the refrigerant in the refrigerant pipeline through the gas-liquid flow meter (10).
3. The air conditioner detection system according to claim 1, wherein the vibration test module (2) comprises:
the air conditioner comprises a shell, acceleration sensors (20) arranged on the shell of the air conditioner, wherein the acceleration sensors (20) are multiple, and the acceleration sensors (20) are arranged at intervals.
4. The air conditioner detection system according to claim 1, wherein the noise test module (3) comprises:
the sound receiver (30) is arranged on the side of the machine body and opposite to the machine body, and a preset interval is reserved between the sound receiver (30) and the machine body so as to receive sound waves emitted by the machine body.
5. The air conditioner detection system according to claim 4, wherein the sound receiver (30) is plural, and the plural sound receivers (30) are arranged at intervals along a circumferential direction of the machine body.
6. The air conditioning detection system of claim 4, wherein the sound receiver (30) is a microphone array.
7. The air conditioner detection system according to any one of claims 1 to 6, further comprising:
and the power test module (4) is connected with the power module of the air conditioner and the control module, and the current and/or voltage value of the air conditioner during operation is obtained through the power test module (4).
8. The air conditioner detection system according to any one of claims 1 to 6, further comprising:
the pressure testing module (5) is arranged on a refrigerant pipeline of the air conditioner to detect the pressure of the refrigerant pipeline, and the pressure testing module (5) is connected with the control module.
9. An air conditioner detection method applied to the air conditioner detection system of any one of claims 1 to 8, wherein the air conditioner detection method comprises the following steps:
starting the air conditioner;
monitoring the flow value of a refrigerant flowing into an air conditioner;
monitoring vibration information of an air conditioner body, and analyzing the vibration information;
and monitoring the noise information of the air conditioner body, and analyzing the noise information.
10. The air conditioner detection method according to claim 9, wherein the method of analyzing the vibration information comprises:
filtering the broadband noise in the noise generated in the air conditioner testing process;
and acquiring a displacement signal of the machine body.
11. The air conditioner detection method according to claim 9, wherein the method for analyzing the noise information comprises:
collecting sound source information sent by the machine body;
and comparing and analyzing the collected sound source information and the sample sound source information.
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| CN202110369306.4A CN113049287A (en) | 2021-04-06 | 2021-04-06 | Air conditioner detection system and air conditioner detection method |
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